WO2022063264A1

WO2022063264A1 - Oppositely-embedded locking sheet material and fastening method

Info

Publication number: WO2022063264A1
Application number: PCT/CN2021/120635
Authority: WO
Inventors: 张棋惠; 张家铭; 许倍嘉
Original assignee: 张棋惠; 张家铭; 许倍嘉
Priority date: 2020-09-27
Filing date: 2021-09-26
Publication date: 2022-03-31
Also published as: CN112012426B; CN112012426A

Abstract

The present invention relates to an oppositely-embedded locking sheet material, which is formed by assembling sheet material units. A first protruding tenon and a first tenon groove which match each other, comprise stepped protruding steps and grooves, and have a wider depth are formed on at least two opposite sides of the sheet material unit. A second tenon groove is formed below the first protruding tenon, and a second protruding tenon is formed below the first tenon groove. In this way, two adjacent sheet material units can be conveniently locked and connected in a direct drop type mounting mode by means of segmented snap-fit of the first protruding tenon and the first tenon groove, and segmented snap-fit of the second protruding tenon and the second tenon groove. According to the present invention, it is well guaranteed that the two fastening sheet material units are seamless, and are not separated from each other; a good locking limiting function is achieved; the horizontal locking connection pulling force between the sheet material units is further increased by the structural design of double relieves and double lock recesses. The sheet material units in a direct drop type mounting mode can also be paved into locking parquet floors. The design of the two-way limiting function of the tenon groove of the structure greatly improves the long-term stability of locking connection between the sheet material units.

Description

Counter-integrated lock plate and fastening method

technical field

The invention relates to the technical field of locking plates, in particular to an embedded locking plate and a method for fastening.

Background technique

The tongue-and-groove floor has been used for a long time, and its assembly structure has also been applied to siding or similar boards. Now, take the floor as an example. The tongue-and-groove floor is easy to assemble and can connect and combine the board units, so it is widely used. The relevant industry has also spared no effort to carry out research and improvement, hoping to design more practical products.

One of the designs is the CN97190692.0 and other series "floors composed of hard board units and methods for manufacturing such board units" China invention patent case approved by Unilin Management Private Company (corresponding to the company Unilin Beheer BV in the United States 6,874,292 and other series "Floor panels with edge connectors" U.S. patent case), there are more than 20 patent applications in this series so far, all of which have the same basic structure, which has a connecting part composed of a tongue and a groove, and An integral mechanical locking device is provided on this connecting part to prevent the disengagement of the two interconnected sheet elements in a direction perpendicular to the relevant edge and parallel to the lower edge of the interconnected sheet elements, which, of course, features a tongue-like arrangement The protrusions on the lower surface of the object, the grooves provided on the lower protrusions of the grooves, and the elastically bendable lower protrusions allow them to be mutually displaced when they are relatively displaced in a planar manner. connected. This design allows the plate units to be connected to each other by inserting the tongue into the plate slot obliquely, and then using the tongue-shaped tenon as a fulcrum to rotate the plate and press down and move the plane to each other. The mechanical locking device prevents it from falling off. Open, because it adopts the method of rotating and pressing down and moving the plane phase to assemble the plate units, so when the long side is combined and positioned and then the short side is combined, it can still be combined by horizontal push, which has its practicality. .

During the use of the plate unit of this design, if the plate unit undergoes drying shrinkage and translates in a direction away from each other, the translation between the plate units can be limited by the limit of the tongue and the groove, but if the plate unit is used for a long time, it will be like geothermal heat. The continuous heating and drying of heating will cause the evaporation of water from the wooden floor, which will cause the wooden floor to shrink in a larger scale. If only the tongue and groove are connected by a single limit buckle, the buckle tension will be significantly reduced, due to the tongue and groove. Under the combined action of the large-area drying and shrinkage of the wooden floor body, the tongue and tenon and the limit notch are loosened, which causes the joints of the interconnected board units to be separated from the seam, and then the wooden floor shrinks slightly, that is, The floor unit and floor unit tongue and groove separation trip will occur.

On the other hand, in a relatively humid environment, the expansion of the plate unit is likely to occur, and the plate units are pushed against each other, causing the bottom of one side of the plate unit to be hollow, and the other side of the plate unit after being squeezed will go up to the side. warping, and then the uneven pressure leads to the upward rotation of the plate unit. At this time, the tongues of the two plate units can be rotated out of the groove, so that the two plate units are separated from each other, which affects the connection stability between the plate units.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the defects of the prior art, to provide an embedded locking plate and a method for fastening, so as to solve the problem that the shrinkage of the plate body caused by the shrinkage of the plate body in the dry environment of the existing plate unit is reduced, causing the gap between the two plates. The joints of the locks are separated and the volume of the board unit expands in a humid environment, which causes the floors to push each other and arch, and the floor is pressed by the foot to cause the board unit to rotate, which can easily cause the tenon to move from the tenon and groove. The internal rotation makes the two plate units separate from each other and affects the stability of the connection.

The technical solution to achieve the above purpose is:

The present invention provides a pair of embedded locking plate, which is assembled from a plate unit (10), the plate unit (10) has an upper surface (11), a bottom surface (12) and four sides, at least two of which are A first tenon (21) and a first tenon (22) are respectively formed on the opposite sides (13, 14);

The side edge (13) with the first tenon (21) is formed with a first abutting surface (131) connected with the corresponding edge of the upper surface (11), and the first abutting surface (131) is vertical direction setting;

The first tenon (21) is formed below the first butt surface (131), and the first tenon (21) protrudes outward from the first butt surface (131); the The first tenon (21) has a first top surface (211), a first outer surface (212) and a first bottom surface (213);

A second tongue groove (32) concave inward is also formed below the first tenon (21), and an edge corresponding to the bottom surface (12) is formed below the second tongue groove (32) the connected first vertical surface (132), the groove bottom of the second tongue groove (32) is concave inward from the first vertical surface (132);

An abutting surface (41) is formed between the first tenon (21) and the second tenon (32);

The other side edge (14) with the first tongue groove (22) is formed with a second abutting surface (141) connected with the corresponding edge of the upper surface (11), and the second abutting surface (141) is in the form of a second abutting surface (141). vertical setting;

The first tongue groove (22) is formed below the second butt surface (141), and the groove bottom of the first tongue groove (22) is concave inward from the second butt surface (141) ; the first tongue groove (22) has a first upper groove wall (221), a first inner groove wall (222) and a first lower groove wall (223);

A second tenon (31) protruding to the outside is further formed below the first tenon groove (22), and an edge corresponding to the bottom surface (12) is formed below the second tenon (31). the connected second vertical surface (142), the head of the second tenon (31) protrudes outward from the second vertical surface (142);

A limiting surface (42) is formed between the first tenon (22) and the second tenon (31);

A first convex step (51) protruding to the outside is formed between the first top surface (211) of the first tenon (21) and the first abutting surface (131), and the first convex The step (51) protrudes outward from the first abutting surface (131);

A first groove (52) concave inward is formed between the first upper groove wall (221) of the first tongue groove (22) and the second abutting surface (141). The groove (52) is concave inward from the second abutting surface (141);

The first groove (52) is adapted to the first convex step (51), and the first groove (52) can accommodate the first convex step (51);

Thereby, the two adjacent plate units (10) can pass through the first tenon (21) and the first tenon groove (22), the first convex step (51) and the first groove (52) and the second convex The tenon (31) and the second tenon groove (32) cooperate with each other to perform snap connection.

In the present invention, the inter-unit connection of the embedded locking plate is that the first tenon (21) is inserted into the first tenon (22), and the second tenon (32) is snapped on the second tenon (31). realized. When assembling, the two plate units can be pressed against the assembly positioning position and the two plate units can be connected and buckled by pressing force, or a plate unit can be rotated and pressed in an inclined state to force the two plates. The connection and snapping are realized between the units. After the two plate units are fastened together, if the plate units undergo drying shrinkage and translate in a direction away from each other, the abutting surface (41) and the limiting surface (42) abut to form a first pinning point, and the first tenon ( 21) The first top surface (211) of the first tongue groove (22) is in close contact with the first upper groove wall (221) of the first tongue groove (22) to form a second pinning point, and the first lateral surface ( 511) is in close contact with the first transverse wall surface (521) of the first groove (52) to form a third pinning point, the second bottom surface (313) of the second tenon (31) and the second tenon groove (32) The second lower trough wall (323) is close to each other to form the fourth pinning point, and the mutual pinning of the four pinning points can ensure that the two plate units are not separated from the seam or separated, and play a good role in the plate lock connection. Limit function, the structural design increases the locking tension between the plate units, and improves the connection and buckle stability between the plate units. If there is rotation between the two plate units, the rotational force must overcome the locking tension from the first pinning point to the fourth pinning point to separate the two board units, so that the two board units can be prevented from being easily rotated and separated, improving the The stability of the connection between the plate units is improved.

The present invention also provides a method for fastening a plate with a built-in lock, comprising the following steps: the plate unit (10) with the first tenon (21) moves to the same plane with the first tenon (22) ) of another plate unit (10), the first tenon (21) begins to enter the first tenon groove (22), and the second tenon groove (32) begins to cover and buckle the second tenon Tenon (31), so that the first outer side surface (212) of the first tenon (21) abuts against the wall surface corresponding to the first groove (52), and the first convex step (51) corresponds to the wall surface. The side faces abut against the second abutting surface (141), so that the abutting surface (41) abuts on the limiting surface (42), and then presses vertically against the first tenon (21). The edge of the plate unit (10) of the The step (51) enters the first groove (52), and the second tenon (32) is snapped on the second tenon (31), that is, two-way locking between the plate units (10) is realized Buckle connection.

The present invention also provides a method for fastening a plate with a built-in lock, comprising the steps of: moving the plate unit (10) with the first tenon (21) in an inclined state to the plate unit (10) with the first tenon (21) in an inclined state. 22) of another plate unit (10); the first tenon (21) is partially inserted into the first tenon groove (22), and the second tenon groove (32) is partially covered and fastened to the first tenon (21). Two tenons (31), so that the first abutting surface (131) and the second abutting surface (141) abut, and then the plate unit (10) with the first tenon (21) is rotated down Press the first tenon (21) into the first tenon groove (22), the first convex step (51) into the first groove (52), and the second tenon The groove (32) is snapped on the second tenon (31), that is, the two-way locking connection between the plate units (10) is realized.

Description of drawings

FIG. 1 is a schematic structural diagram of a first embodiment of a plate unit for an embedded locking plate according to the present invention.

FIG. 2 is a schematic structural diagram of the assembled two plate units according to the first embodiment of the present invention.

FIG. 3 , FIG. 4 and FIG. 7 are schematic diagrams of disassembly steps for assembling two plate units in a pressing manner according to the first embodiment of the present invention.

5 and 6 are schematic diagrams illustrating the deformation of the tongue and groove when the two plate units according to the first embodiment of the present invention are assembled by pressing.

FIG. 8 and FIG. 9 are schematic structural diagrams of two plate units assembled by rotating and pressing down according to the first embodiment of the present invention.

10 is a schematic diagram of the deformation of the tongue and groove when the two plate units according to the first embodiment of the present invention are assembled by rotating and pressing down.

FIG. 11 is a schematic diagram of the decomposition steps of the two plate units according to the first embodiment of the present invention using a rotary pressing method.

FIG. 12 and FIG. 13 are schematic views of the reverse rotation limit after two plate units are assembled in the first embodiment of the present invention.

14 to 16 are diagrams showing the arrangement of the plate unit processing tool according to the first embodiment of the present invention.

FIG. 17 is a schematic structural diagram of a second embodiment of a plate unit for an embedded locking plate according to the present invention.

FIG. 18 is a schematic structural diagram of the assembled two plate units according to the second embodiment of the present invention.

FIG. 19 is a schematic structural diagram of a third embodiment of a plate unit for an embedded locking plate according to the present invention.

FIG. 20 is a schematic structural diagram of the assembled two plate units according to the third embodiment of the present invention.

21 to 23 are schematic diagrams of disassembly steps for assembling two plate units in a pressing manner according to the third embodiment of the present invention.

24 and 25 are schematic structural diagrams of two plate units assembled by rotating and pressing down according to the third embodiment of the present invention.

26 to 28 are diagrams showing the arrangement of a plate unit processing tool according to a third embodiment of the present invention.

FIG. 29 is a schematic structural diagram of a fourth embodiment of a plate unit for an embedded locking plate according to the present invention.

FIG. 30 is a schematic structural diagram of the assembled two plate units according to the fourth embodiment of the present invention.

FIG. 31 is a schematic structural diagram of the fifth embodiment of the panel unit of the embedded locking panel of the present invention.

FIG. 32 is a schematic structural diagram of the assembled two plate units according to the fifth embodiment of the present invention.

FIG. 33 is a schematic structural diagram of the sixth embodiment of the panel unit of the embedded locking panel of the present invention.

FIG. 34 is a schematic structural diagram of the assembled board unit according to the sixth embodiment of the present invention.

FIG. 35 is a partial enlarged schematic view of the connection between the relief and the depression in FIG. 34 .

FIG. 36 is a schematic structural diagram of a seventh embodiment of a plate unit for an embedded locking plate according to the present invention.

FIG. 37 is a schematic structural diagram of the assembled two plate units according to the seventh embodiment of the present invention.

FIG. 38 is a schematic structural diagram of the eighth embodiment of the plate unit of the embedded locking plate according to the present invention.

FIG. 39 is a schematic structural diagram of the assembled two plate units according to the eighth embodiment of the present invention.

FIG. 40 is a schematic structural diagram of the ninth embodiment of the plate unit of the embedded locking plate according to the present invention.

FIG. 41 is a schematic structural diagram of the assembled two plate units according to the ninth embodiment of the present invention.

42 to 44 are schematic diagrams of disassembly steps for assembling two plate units in a pressing manner according to the ninth embodiment of the present invention.

FIG. 45 and FIG. 46 are schematic structural diagrams of two plate units assembled by rotating and pressing down according to the ninth embodiment of the present invention.

FIG. 47 is a schematic structural diagram of the tenth embodiment of the plate unit of the embedded locking plate according to the present invention.

FIG. 48 is a schematic structural diagram of the assembled two plate units according to the tenth embodiment of the present invention.

FIG. 49 is a schematic structural diagram of the tenth embodiment of the present invention assembling with various nails during assembly.

FIG. 50 is a schematic structural diagram of the eleventh embodiment of the plate unit of the embedded locking plate according to the present invention.

FIG. 51 is a schematic structural diagram of the assembled two plate units according to the eleventh embodiment of the present invention.

52 to 54 are schematic diagrams of disassembly steps for assembling two plate units by pressing according to the eleventh embodiment of the present invention.

FIG. 55 and FIG. 56 are schematic structural diagrams of two plate units assembled by rotating and pressing down according to the eleventh embodiment of the present invention.

FIG. 57 is a schematic structural diagram of the twelfth embodiment of the plate unit of the embedded locking plate according to the present invention.

FIG. 58 is a schematic structural diagram of the assembled two plate units according to the twelfth embodiment of the present invention.

FIGS. 59 to 61 are schematic diagrams of disassembled steps of assembling two plate units in a pressing manner according to the twelfth embodiment of the present invention.

FIG. 62 and FIG. 63 are schematic structural diagrams of two plate units assembled by rotating and pressing down according to the twelfth embodiment of the present invention.

FIG. 64 is a schematic structural diagram of the thirteenth embodiment of the plate unit of the embedded locking plate according to the present invention.

FIG. 65 is a schematic structural diagram of the assembled two plate units according to the thirteenth embodiment of the present invention.

66 to 68 are schematic diagrams of disassembly steps for assembling two plate units in a pressing manner according to the thirteenth embodiment of the present invention.

FIG. 69 and FIG. 70 are schematic structural diagrams of two plate units assembled by rotating and pressing down according to the thirteenth embodiment of the present invention.

FIG. 71 is a schematic structural diagram of the fourteenth embodiment of the plate unit of the embedded locking plate according to the present invention.

FIG. 72 is a schematic structural diagram of the assembled two plate units according to the fourteenth embodiment of the present invention.

Figures 73 to 75 are schematic diagrams of disassembled steps in which two plate units are assembled by pressing according to the fourteenth embodiment of the present invention.

Figures 76 and 77 are schematic structural diagrams of two plate units assembled by rotating and pressing down according to the fourteenth embodiment of the present invention.

FIG. 78 is a schematic structural diagram of the fifteenth embodiment of the panel unit of the invention to lock the panel.

FIG. 79 is a schematic structural diagram of the sixteenth embodiment of the panel unit of the embedded locking panel of the present invention.

FIG. 80 is a schematic structural diagram of the assembled two plate units according to the sixteenth embodiment of the present invention.

81 to 82 are diagrams showing the arrangement of a plate unit processing tool according to a sixteenth embodiment of the present invention.

FIG. 83 is a schematic structural diagram of the seventeenth embodiment of the panel unit of the embedded locking panel of the present invention.

FIG. 84 is a schematic structural diagram of the assembled two plate units according to the seventeenth embodiment of the present invention.

85 to 87 are schematic structural diagrams of two plate units assembled by pressing according to the seventeenth embodiment of the present invention.

Figures 88 and 89 are schematic structural diagrams of two plate units assembled by rotating and pressing down according to the seventeenth embodiment of the present invention.

FIG. 90 is a schematic structural diagram of the eighteenth embodiment of the panel unit of the embedded locking panel of the present invention.

FIG. 91 is a schematic structural diagram of the assembled two plate units according to the eighteenth embodiment of the present invention.

92 to 94 are schematic structural diagrams of two plate units assembled by pressing according to the eighteenth embodiment of the present invention.

FIG. 95 and FIG. 96 are schematic structural diagrams of two plate units assembled by rotating and pressing down according to the eighteenth embodiment of the present invention.

FIG. 97 is a schematic structural diagram of the assembly and arrangement of plate units according to the present invention to form the first mosaic pattern.

FIG. 98 is a schematic structural diagram of the assembled and arranged plate units of the present invention to form a second mosaic pattern.

detailed description

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Referring to FIG. 1 , the present invention provides a pair of embedded locking plates, which are assembled from plate units to improve the connection stability of the locking plates. The first tenon 21 and the second tenon 31 are used to connect the two The board unit 10 is stuck from two directions at the same time, forming a solid connection principle of tenon and mortise for different workpieces, which is similar to traditional Chinese wooden furniture, so that its structure and function can achieve the same good buckle effect, which can well guarantee the space between the board units. The long-term horizontal connection does not leave the seam and does not separate, which increases the tension of the lock connection of the plate. The structure of the embedded locking plate of the present invention will be described below with reference to the accompanying drawings.

Referring to FIG. 1 , a schematic structural diagram of the first embodiment of the plate unit is shown. The following describes the structure of the embedded locking plate of the present invention with reference to FIG. 1 .

As shown in FIG. 1 , the embedded locking plate of the present invention is assembled from a plate unit 10 . The plate unit 10 has an upper surface 11 , a bottom surface 12 and four sides. The upper surface 11 and the bottom surface 12 are flat and Oppositely arranged, the four sides are arranged around the upper surface 11 and the bottom surface 12, and at least two opposite sides of the four sides are respectively formed with a first tenon 21 and a first tenon groove 22 which are matched ; The side 13 with the first tenon 21 is formed with a first butt surface 131 connected to the corresponding edge of the upper surface 11, the first butt surface 131 is arranged vertically; the first tenon 21 is formed in the Below a butting surface 131 , and the first tenon 21 protrudes outward from the first butting surface 131 ; a second tenon groove 32 concave inward is also formed under the first tenon 21 . The bottom of the tongue groove 32 is formed with a first vertical surface 132 connected with the corresponding edge of the bottom surface 12. The groove bottom of the second tongue groove 32 is concave inward from the first vertical surface 132; An abutting surface 41 is formed between the two tongue grooves 32 ; the other side 14 with the first tongue groove 22 is formed with a second abutting surface 141 connected to the corresponding edge of the upper surface 11 , and the second abutting surface 141 is Vertically arranged; the first tongue groove 22 is formed below the second butting surface 141 , and the bottom of the first tongue groove 22 is concave inward from the second butting surface 141 ; the bottom of the first tongue groove 22 is also formed with a direction A second tenon 31 protruding from the outside, a second vertical surface 142 connected to the edge corresponding to the bottom surface 12 is formed below the second tenon 31, and the head of the second tenon 31 is formed from the second vertical surface 142 protrudes outward; a limiting surface 42 is formed between the first tenon groove 22 and the second tenon 31 ; the first tenon 21 has a first top surface 211 , a first outer side surface 212 and a first bottom surface 213 , the first The tongue groove 22 has a first upper groove wall 221 , a first inner groove wall 222 and a first lower groove wall 223 , and an outward protrusion is formed between the first top surface 211 of the first tenon 21 and the first butting surface 131 . The first convex step 51 protrudes outward from the first abutting surface 131 ; a concave inward is formed between the first upper groove wall 221 of the first tongue groove 22 and the second abutting surface 141 The first groove 52 is concave inward from the second abutting surface 141; the first groove 52 is adapted to the first convex step 51, and the first groove 52 can accommodate the first groove 52. Convex step 51. Therefore, with reference to FIG. 2 , two adjacent plate units 10 can pass through the first tenon 21 and the first tenon groove 22 , the first convex step 51 and the first groove 52 , the second tenon 31 and the first tenon 31 and the first groove 52 . The two tongue grooves 32 cooperate with each other to perform stable connection and buckle.

In the first embodiment of the present invention, a first tenon 21 protruding outward, a second tenon 32 concave inward, and a first convex step 51 protruding outward are formed at the side edge 13; A first tongue groove 22 concave inward, a first groove 52 concave inward and a second tenon 31 protruding outward are formed at the edge 14 . The first tenon 21 is matched with the first tenon groove 22, the first tenon groove 22 can accommodate the first tenon 21, the first convex step 51 is matched with the first groove 52, the first groove 52 can accommodate the first convex step 51 , the second tenon 32 is matched with the second tenon 31 , and the second tenon 32 can receive the second tenon 31 . As shown in FIGS. 3 and 4 , the two plate units 10 of the first embodiment are connected by inserting in the lateral (or horizontal) direction. After the two plate units 10 are assembled, as shown in FIG. 2 , The first abutting surface 131 is in contact with the second abutting surface 141 , the first tenon 21 is placed in the first tenon groove 22 , the first convex step 51 is placed in the first groove 52 , and the second tenon groove 32 is locked in the first groove 52 . On the second tenon 31 , the first vertical surface 132 and the second vertical surface 142 are disposed opposite to each other. Thereby, the first tenon 21 of one plate unit 10 protrudes into the inner side of the other plate unit 10, and the second tenon 31 of the other plate unit 10 protrudes into the inner side of the one plate unit 10, that is, the first convex After the tenon 21 is pre-extended into the first tenon groove 22 by about half of the depth, the second tenon groove 32 is correspondingly snapped on the second tenon 31 to press the plate with the first tenon 21 therein. The unit 10 can specifically press the position of the upper surface 11 close to the first butt surface 131, and only need to apply a little force in a vertical pressing manner to realize the locking and positioning of the two-way tenon and groove of the two plate units 10. At this time , the first tenon 21 plus the first protruding step 51 and the elongated tenon and the first tenon groove 22 plus the first groove 52, the formed double tenon and groove are connected to each other and the plate unit connection buckle that is restrained by each other In this way, the connection and fastening stability of the plate unit 10 can be greatly improved. As shown in FIG. 7 , when the assembled two plate units 10 dry and shrink, the two plate units 10 will follow the direction shown in F2 of FIG. 7 . direction movement, that is, the left plate unit 10 moves to the left, the right plate unit 10 moves to the right, and when the two plate units 10 are about to move in the direction of separation from each other, the first tenon 21 moves to the right , the abutting surface 41 presses the limiting surface 42 and intends to stretch the first tenon groove 22, at this time, the second tenon 31 will be supported by the second tenon groove 32, so that the first tenon groove 22 cannot be stretched, and the In order to achieve the effect of stable locking, it is ensured that the two plate units 10 are neither separated from the seam nor separated, and the connection and buckle stability of the plate units 10 is ensured. In addition, the first tenon 21 and the second tenon 31 are located on the two plate units 10 that are assembled and connected. If one of the plate units 10 has the problem of uneven material, the first tenon 21 or the second tenon 31 appears When damaged, the first tenon 21 and the second tenon 31 on the other plate unit 10 can still maintain the normal use of the plate. Also due to the same arrangement in which the wider depth of the first tenon 21 is inserted into the first tenon groove 22 and the second tenon 31 extends into the second tenon groove 32, after the two plate units 10 are fastened together, the first The tenon 21 and the second tenon 31 can be easily separated from the first tenon groove 22 and the second tenon groove 32 and are tightly clamped and fastened to each other with a wide depth without causing the material of the board unit to shrink slightly due to the dry environment. Larger inclination angle and upturning force can complete the disassembly of the plate unit, and it is very difficult to trip and separate.

In a specific embodiment of the present invention, as shown in FIG. 1 , the first convex step 51 includes a first transverse surface 511 connected with the first abutting surface 131 and a first longitudinal surface connected with the first transverse surface 511 512 , the first longitudinal surface 512 is connected to the first top surface 211 of the first tenon 21 , and the first longitudinal surface 512 is disposed between the first butt surface 131 and the first outer side surface 212 . The first outer side surface 212 of the first tenon 21 is connected with the first top surface 211 , and the first bottom surface 213 is connected with the first outer side surface 212 . Preferably, the first outer side surface 212 includes a vertical part and an oblique part, the vertical part is connected with the first top surface 211, the top of the oblique part is connected with the vertical part, and the bottom of the oblique part faces toward the vertical part. The inner side of the plate unit 10 is inclined and connected to the first bottom surface 213 . The first bottom surface 213 is slightly straight, the first top surface 211 is slightly inclined, and the end of the first top surface 211 and the first longitudinal surface 512 is higher than the first top surface 211 and the first outer side surface 212 the end of the connection.

The first groove 52 includes a first transverse wall surface 521 connected with the second abutting surface 141 and a first longitudinal wall surface 522 connected with the first transverse wall surface 521 . The groove walls 221 are connected, and the first longitudinal wall surface 522 is disposed between the second abutting surface 141 and the first inner groove wall 222 . The first inner groove wall 222 of the first tongue groove 22 is connected with the first upper groove wall 221 , and the first lower groove wall 223 is connected with the first inner groove wall 222 . Preferably, the first inner groove wall 222 is adapted to the shape of the first outer side surface 212, and includes a vertical part and an oblique part, the top of the oblique part is connected to the vertical part, and the bottom of the oblique part faces the vertical part. The outside of the plate unit 10 is inclined and connected with the first lower groove wall 223 . The first lower groove wall 223 is slightly inclined, and the height of the end of the first lower groove wall 223 connected to the limiting surface 42 is relatively low. The first upper groove wall 221 is also slightly inclined, and the connecting end of the first upper groove wall 221 and the first vertical wall surface 522 is higher than the end connecting the first upper groove wall 221 and the first inner groove wall 222 .

The second tongue groove 32 has a second upper groove wall 321 , a second inner groove wall 322 and a second lower groove wall 323 , the second upper groove wall 321 is connected to the abutting surface 41 , and the second inner groove wall 322 is connected to the second upper groove wall The groove wall 321 is connected, and the second lower groove wall 323 is connected with the second inner groove wall 322 . Preferably, the second inner groove wall 322 includes two inclined portions, one inclined portion is connected to the second upper groove wall 321, the bottom of the inclined portion is disposed closer to the inner side of the plate unit 10, and the other inclined portion is Connected to the second lower groove wall 323 , the bottom of the inclined portion is disposed closer to the outside of the plate unit 10 . The second upper groove wall 321 is slightly inclined, and the end of the second upper groove wall 321 connected to the second inner groove wall 322 is slightly lower than the end of the second upper groove wall 321 connected to the abutting surface 41 . The second lower groove wall 323 is disposed in an inclined shape, and the end of the second lower groove wall 323 connected to the second inner groove wall 322 is higher than the end of the second lower groove wall 323 connected to the first vertical surface 132 .

The second tenon 31 has a second top surface 311 , a second outer side surface 312 and a second bottom surface 313 , the second top surface 311 is connected with the limiting surface 42 , the second outer side surface 312 is connected with the second top surface 311 , the second The bottom surface 313 is connected to the second outer side surface 312 . The shape of the second outer side surface 312 is adapted to the shape of the second inner wall surface 322, the second top surface 311 is a flat surface, and the shape of the second bottom surface 313 is adapted to the shape of the second lower groove wall 323.

The elevation of the first bottom surface 213 is lower than the elevation of the second upper groove wall 321 ; the elevation of the second top surface 311 is higher than the elevation of the first lower groove wall 223 . As shown in FIG. 7 , after the two plate units 10 are assembled, if the two plate units 10 are subjected to a force that separates from each other in the horizontal direction or when the two plate units 10 move in the direction shown by F2 in FIG. 7 At the same time, the second tenon 31 and the first tenon 21 will block each other, and the abutting surface 41 and the limiting surface 42 will also be in close contact with each other, which restricts the separation of the two plate units 10 from each other along the horizontal direction, and can lock the two Each plate unit 10 ensures that the two plate units 10 are not separated from each other, and the structural connection stability of the plate units 10 is improved.

As shown in FIG. 4 and FIG. 7 , the first top surface 211 is slightly inclined, and the first upper groove wall 221 is also slightly inclined. When the first tenon 21 is placed in the first tenon groove 22, the first top surface 211 is closely attached to the first upper groove wall 221 , and the first bottom surface 213 is closely attached to the first lower groove wall 223 . 1 , the second bottom surface 313 is inclined, and the second lower groove wall 323 is also inclined. When the second tenon 31 is placed in the second tenon groove 32, the second bottom surface 313 and the second lower groove wall 323 are in close contact with each other, and there is a gap between the second top surface 311 and the second upper groove wall 321 . If the two plate units 10 dry and shrink, the two plate units 10 will move along the direction shown by F2 in FIG. 7 , that is, the right plate unit 10 moves to the right, and the left plate unit 10 moves to the left When moving, if the force generated by the drying shrinkage is large, the plate unit 10 on the right will move obliquely upward along the direction indicated by F1 through the guidance of the limiting surface 42. At this time, the first lateral direction of the first convex step 51 The surface 511 is clamped with the first lateral wall surface 521 of the first groove 52 to form a first pinning point; the first top surface 211 of the first tenon 21 is in contact with the first upper groove wall 221 of the first tenon groove 22 The second lower groove wall 323 of the second tenon groove 32 is clamped with the second bottom surface 313 of the second tenon 31 to form the third containment point; Therefore, the abutting surface 41 cannot be set along the slope of the limiting surface 42 of the first tongue groove 22 of the right plate unit 10 to be lifted and disengaged obliquely upward, resulting in the contact between the abutting surface 41 of the first tenon and the first tongue groove 22 . The limiting surfaces 42 are also clamped to each other to form a fourth restraining point. The mutual restraining force generated by the first to fourth restraining action points prevents the first tenon 21 of the right plate unit 10 from being able to break free from the clamping of the left first tenon groove 22. Therefore, it can be well ensured that the two The plate unit 10 is not separated from the seam or separated, and has a good locking and limiting function, and the wider depth of the first tenon groove 22 simultaneously holds the first tenon 21 and the first convex step 51. The tenon structure design increases the locking tension of the connecting plates.

In a specific embodiment of the present invention, as shown in FIGS. 1 and 3 , the lowest point of the connection between the first bottom surface 213 of the first tenon 21 and the abutting surface 41 is the first The horizontal distance L1 between the vertical extension lines of the outermost position point of the outer side surface 212 is smaller than the horizontal distance L2 between the vertical extension line of the highest point of the limiting surface 42 and the lowest point of the first vertical wall surface 522, ie L1<L2. Referring to FIG. 3 , the plate unit 10 with the first tenon 21 is moved to another plate unit 10 with the first tenon 22 on the same plane, and the first outer surface 212 of the first tenon 21 is the most When the outer side is in contact with the first longitudinal wall surface 522 of the first groove 52, the connection between the first bottom surface 213 of the first tenon 21 and the abutting surface 41 corresponds to the limiting surface 42. Since L1<L2, if the The connection between the first bottom surface 213 and the top surface 41 and the limit surface 42 are in contact with each other. At this time, the lowest point of the connection between the first bottom surface 213 and the top surface 41 is located below the highest point of the limit surface 42 . As shown in FIG. 4 , that is, when the first outer side surface 212 of the first tenon 21 is in close contact with the first longitudinal wall surface 522 of the first groove 52 (at this time, the first outer side surface 212 and the first longitudinal wall surface 522 are also presenting an interference state), the lowest point of the connection between the first bottom surface 213 and the abutting surface 41 and the limiting surface 42 are in an interference fit, and at this time, the first tenon 21 partially falls into the range of the first tenon groove 22 . In this state, the plate unit 10 with the first tenon 21 can no longer be moved along the same plane, and then the edge of the upper surface 11 of the plate unit 10 with the first tenon 21 is pressed vertically, that is, to the The upper surface 11 vertically above the abutting surface 41 exerts force in a vertical pressing manner, and as shown in FIG. 4 and FIG. A convex step 51 enters the first groove 52, and the second tenon groove 32 is fastened on the second tenon 31, that is, a two-way locking connection between the plate units is realized.

As shown in FIG. 3 , the horizontal line between the lowest point of the connection between the first bottom surface 213 of the first tenon 21 and the abutting surface 41 and the vertical extension line of the outermost position point of the first outer side surface 212 of the first tenon 21 The distance L1 is greater than the horizontal distance L3 between the junction of the first lower groove wall 223 of the first tongue groove 22 and the limiting surface 42 and the vertical extension line of the lowest point of the first longitudinal wall surface 522 of the first groove 52, that is, L1> L3. When the board unit 10 with the first tenon 21 is pushed toward the board unit 10 with the first tenon 22 , the first outer side 212 of the first tenon 21 abuts against the first longitudinal direction of the other board unit 10 . When the first tenon 21 is on the wall surface 522, the first tenon 21 has fallen into the range of the first tenon groove 22 of the other plate unit 10. Based on the technical point of L1>L3, the first bottom surface 213 of the first tenon 21 and the top The lowest point of the connection of the leaning surface 41 has not yet touched the connection between the first lower groove wall 223 of the first tongue groove 22 and the limiting surface 42, so that the present invention can perform the buckle between the plate units 10 by pressing. .

As shown in FIG. 3 , the maximum horizontal distance L4 between the first abutting surface 131 and the first outer side surface 212 of the first tenon 21 is smaller than the distance between the second abutting surface 141 and the first inner groove wall 222 of the first tongue groove 22 . The maximum horizontal distance L5, that is, L4<L5, is shown in FIG. 7. When the first abutting surface 131 and the second abutting surface 141 are in close contact with each other, the first outer side surface 212 of the first tenon 21 and the first tenon groove There is a gap between the first inner groove walls 222 of 22 . Correspondingly, there is also a gap between the second outer side surface 312 of the second tenon 31 and the second inner groove wall 322 of the second tenon groove 32. Through the left gap, the contact between the tenon and the groove wall of the tenon groove can be avoided. Abnormal noise caused by collision or friction.

The maximum horizontal distance L4 between the first abutting surface 131 and the first outer side surface 212 of the first tenon 21 is greater than the maximum horizontal distance L6 between the second abutting surface 141 and the first vertical wall surface 522 , that is, L4 > L6 .

As shown in FIG. 3 , the distance L7 between the connection between the second outer side surface 312 of the second tenon 31 and the second bottom surface 313 and the connection between the limiting surface 42 and the second top surface 311 of the second tenon 31 is greater than The minimum distance L8 between the connection between the second lower groove wall 323 of the second tenon groove 32 and the first vertical surface 132 and the abutting surface 41 , that is, L7>L8, the plate unit 10 with the first tenon 21 is placed in the The same plane is moved to another plate unit 10 with the first tongue groove 22, if the connection between the limiting surface 42 and the first top surface 311 of the second tenon 31 is located within the range of the abutting surface 41, because L7> L8, the connection between the second bottom surface 313 of the second tenon 31 and the second outer side surface 312 is not yet in contact with the connection between the second lower groove wall 323 of the second tongue groove 32 and the first vertical surface 132 . When the edge of the upper surface 11 of the board unit 10 with the first tenon 21 is pressed vertically, the connection between the second bottom surface 313 of the second tenon 31 and the second outer surface 312 is shown in FIG. 4 . The junction between the second lower groove wall 323 of the second tongue groove 32 and the first vertical surface 132 is an interference fit, that is, the second tenon 31 will press the notch of the second tongue groove 32 (the notch refers to The area between the abutting surface 41 and the connection between the first vertical surface 132 and the second lower groove wall 323 ) is stretched, so that the second tenon groove 32 can be snapped on the second tenon 31 . In addition, since L7>L8, when the second tenon 32 is snapped onto the second tenon 31, the second tenon 32 and the second tenon 31 form a snapping function, so separation is unlikely to occur.

In a specific embodiment of the present invention, the abutting surface 41 and the limiting surface 42 are inclined surfaces. The inclined surface is used for guiding, so as to facilitate the connection between the two panel units 10 .

In a specific embodiment of the present invention, the abutting surface 41 and the limiting surface 42 are arc surfaces. The arc surface is used as a guide, and the arc surface is preferably a circular arc surface, which can make the two panel units 10 better assembled. When two panel units are paved and connected to the uneven ground, there is a first tenon. The plate unit of the arc-shaped abutting surface 41 of 21 and the plate unit of the other arc-shaped limiting surface 42 with the first tenon groove 22 are connected together, and the contact points of the arc surfaces of the two plate units are When the ground plane angles are different, the arc surfaces of the two different plate units form micro-rotational contact, so the friction noise at the connection between the abutting surfaces 41 and the limiting surfaces 42 of the different plate units can be extremely effectively reduced.

In a specific embodiment of the present invention, as shown in FIG. 7 , after two adjacent plate units 10 are fastened together, a separation seam 43 is provided between the first vertical surface 132 and the second vertical surface 142 . The space for expansion is reserved for the board by the set separation seam 43, which can reduce the contact surface of the board when it is damp and expand, and reduce the friction noise. As shown in FIG. 12 and FIG. 13 , when the plate unit 10 on the right is subjected to the force F3 of reverse rotation, the first vertical surface 132 abuts against the second vertical surface 142 , restricting the plate unit 10 on the right The continuous rotation of the plate unit 10 makes it impossible for the plate unit 10 to continue to tilt. The first vertical surface 132 and the second vertical surface 142 also play the role of positioning and limiting. When the right plate unit 10 is subjected to the force F3 of reverse rotation, the second top surface 311 of the second tenon 31 of the left plate unit 10 and the second upper surface of the second tenon 32 of the right plate unit 10 The groove wall 321 is in close contact with each other, which also restricts the continued rotation of the plate unit 10 on the right side. The second tenon 31 and the second tenon groove 32 also play the role of positioning and limiting again.

In a specific embodiment of the present invention, as shown in FIG. 1 , the second abutting surface 141 and the second vertical surface 142 of the plate unit 10 are both arranged vertically, and the second abutting surface 141 and the second vertical surface 142 are arranged staggered from each other, that is, the second abutting surface 141 and the second vertical surface 142 are not in the same vertical plane, so that the notch of the first tongue groove 22 can be made larger, and the notch is formed by the second vertical surface 141. It is formed between the lowermost part of the limit surface 42 and the uppermost part of the limiting surface 42 , which can facilitate the assembly of the first tenon 21 .

The first abutting surface 131 and the first vertical surface 132 of the plate unit 10 are both arranged vertically, and the first abutting surface 131 and the first vertical surface 132 are staggered from each other, that is, the first abutting surface 131 and the first vertical surface 132 are arranged vertically. The surfaces 132 are not in the same vertical plane, so that the notch of the second tongue groove 32 can be made larger. The second tenon 31 is fastened on the second tenon groove 32 .

In a specific embodiment of the present invention, the first lower groove wall 223 of the first tongue groove 22 is provided with a downwardly concave installation groove 224, and the plate unit 10 with the first tongue groove 22 can be fixed by using the installation groove On the installation foundation (generally refers to the ground, wall, wood, metal channel, plastic slat keel, etc.). The installation slot 224 can accommodate fixing nails for fixed connection to directly fix the board on the ground or wall surface. The fixing nails can be wood screws, air gun U-shaped nails, iron nails, etc. or other types of fixing nails.

In a specific embodiment of the present invention, the overall thickness of the first tenon 21 and the first convex step 51 provided on the side of the plate unit 10 accounts for 20% to 40% of the overall thickness of the plate unit 10, and the second tenon The vertical maximum height of the grooves 32 is 20% to 40% of the overall thickness of the panel unit 10 . The plate unit 10 is provided with a first tenon, a first convex step, a second tenon groove, a first tenon groove, a first groove and a second tenon on the opposite sides of the plate unit 10, so as to ensure the space between the tenon and the tenon groove. On the premise that the structural strength meets the requirements, the overall thickness of the plate unit can be relatively thin, and the thickness of the plate unit can be between 4mm and 8mm. Preferably, the thickness of the plate unit is 4mm.

In yet another modification of the first embodiment, the first bottom surface 213 and the abutting surface 41 are connected to form a first embossment 215 that protrudes downward, and the first lower groove wall 223 and the limiting surface 42 are connected to form a downward concave The specific structures of the first embossing protrusion 215 and the first locking groove 225 are the same as those of the first embossing protrusion 215 and the first locking groove 225 in the seventh embodiment, please refer to the seventh embodiment Structure description in .

As shown in FIG. 3 to FIG. 7 , two adjacent plate units 10 can pass through the first tenon 21 and the first tenon groove 22 , the first convex step 51 and the first groove 52 and the second tenon 31 and the first tenon 31 and the first groove 52 . The two tongue grooves 32 are fastened by translation and pressing. Specifically, as shown in FIG. 6 , the plate unit 10 with the first tenon 21 and the first convex step 51 is moved on the same plane to the one with the first tenon 21 and the first convex step 51 The plate unit 10 of the tenon groove 22 and the first groove 52, the first tenon 21 begins to enter the first tenon groove 22, the notch of the second tenon groove 32 is fastened to the head of the second tenon 31, and the first tenon 21 starts to enter the first tenon groove 22. The first outer side surface 212 of a tenon 21 is in contact with the first longitudinal wall surface 522 of the first groove 52 , the first top surface 211 is in contact with the first lateral wall surface 521 of the first groove 52 , and the first convex step 51 The first longitudinal surface 512 of the first longitudinal surface 512 is in contact with the second abutting surface 141. At this time, the plate unit 10 with the first tenon 21 and the first convex step 51 can be dropped downward, so that the first bottom surface 213 of the plate unit 10 can be lowered. The junction with the resting surface 41 is in contact with the junction between the limiting surface 42 and the second top surface 311 , and then continue to push the plate unit 10 with the first tenon 21 and the first convex step 51 , so that the first The first inclined surface 214 between the top surface 211 and the first outer side surface 212 abuts against the second inclined surface 45 at the connection between the first longitudinal wall surface 522 and the first upper groove wall 221 , and the first lateral surface 511 and the first longitudinal surface The first inclined surface 513 between the 512 is in contact with the first inclined surface 44 at the connection between the second abutting surface 141 and the first lateral wall surface 521, and the abutting surface 41 and the limiting surface 42 are in an interference state. The first tongue groove 22 of a plate unit 10 will be elastically deformed and stretched, and the second outer side surface 312 of the second tenon 31 and the second lower groove wall 323 of the second tongue groove 32 and the first vertical surface 132 The joints are in contact. At this time, the plate unit 10 with the first tenon 21 and the first convex step 51 cannot be pushed on the same plane, and then the plate unit with the first tenon 21 and the first convex step 51 cannot be pushed. The upper surface 11 of the 10 exerts a vertical downward pressing force, and as shown in FIG. Inside, the second tenon 32 is snapped on the second tenon 31. As shown in FIG. 5 and FIG. 6, during the pressing process, the first transverse wall 521 of the first groove 52 is stretched and elastically deformed upward. , the first upper groove wall 221 of the first tenon groove 22 is stretched and elastically deformed upward, and the abutting surface 41 presses the limiting surface 42, so that the second tenon 31 is elastically deformed downward, and then presses the second tenon groove. The second lower groove wall 323 of 32 is elastically deformed downward, so that the first groove 52 is stretched so that the first convex step 51 can fall in, and the first tenon groove 22 is stretched so that the first tenon 21 can be opened. After falling, the second tenon groove 32 is stretched and can be snapped to the second tenon 31 , so that the two-way locking connection between the two plate units 10 can be completed.

As shown in FIG. 8 and FIG. 9 , two adjacent plate units 10 can pass through the first tenon 21 and the first tenon groove 22 , the first convex step 51 and the first groove 52 and the second tenon 31 and the first tenon 31 and the first groove 52 . The two tenon grooves 32 are fastened by rotating and pressing down. Specifically, as shown in FIG. 11 , the plate unit 10 with the first tenon 21 and the first convex step 51 is inserted into the plate unit 10 with the first tenon in an inclined state. In the plate unit 10 of the groove 22 and the first groove 52, the first tenon 21 is partially inserted into the first tenon 22, and the second tenon 32 is partially covered and buckled on the second tenon 31, so that the first butting surface 131 Abut against the second abutting surface 141 , and then use the abutting position as a contact point to rotate and press the plate unit 10 with the first tenon 21 and the first convex step 51 , so that the first tenon 21 enters the first tenon 21 . In the tenon groove 22, let the first convex step 51 enter the first groove 52, and the second tenon groove 32 is snapped on the second tenon 31. When rotating and pressing down, in combination with FIG. 10, the first groove The first lateral wall surface 521 of the second tongue groove 32 is stretched and elastically deformed upward so that the first convex step 51 can fall, and the second lower groove wall 323 of the second tongue groove 32 is stretched and elastically deformed downward so that the second tongue groove 32 It can be snapped on the second tenon 31 , that is, the two-way locking connection of the 10 pieces of plate unit can be realized.

As shown in FIGS. 14 to 16 , the plate unit 10 of the first embodiment requires three types of cutting tools during production and processing, namely, a horizontal tool 151 , a vertical tool 152 and an inclined tool 153 . The horizontal tool 151 can be used along the plate. The cutting process is performed in the transverse direction of the unit 10 , and the vertical knife 152 can perform the cutting process along the vertical direction of the plate unit 10 . Since the groove bottoms of the first tongue groove 22 and the second tongue groove 32 are disposed toward the interior of the plate unit 10 , the inclined blade 153 needs to be used for cutting.

Referring to FIG. 17, a second embodiment of the panel unit 10 of the present invention is shown. As shown in FIG. 17 , the difference between the second embodiment and the first embodiment is that a third tenon 71 is provided below the second tenon groove 32 , and a third tenon is provided below the second tenon 31 . The first bottom surface 213 of the first tenon 21 is provided with a double relief structure, and the first lower groove wall 223 of the first tenon 22 is provided with a double locking groove structure. Specifically, a third tenon 71 protruding to the outside is formed between the second tenon groove 32 and the first vertical surface 132, and the third tenon 71 protrudes from the first vertical surface 132 to the outside; the second A third tongue groove 72 is formed between the tenon 31 and the second vertical surface 142, which is concave inward. The third tongue groove 72 is recessed inward from the second vertical surface 142; The three tenons 71 are matched to each other, and the third tenon 72 can accommodate the third tenon 71 .

In the second embodiment, the bottom of the second tongue groove 32 is concave inward from the third outer side surface 711 of the third tongue 71 , and the head of the second tongue 31 is from the third side of the third tongue groove 72 . The inner groove wall 721 protrudes to the outside, the second inner groove wall 322 of the second tongue groove 32 is closer to the outer side of the plate unit 10 than the first vertical surface 132 , and the second outer side surface 312 of the second tongue groove 31 It is closer to the inner side of the board unit 10 than the second vertical surface 142 .

Preferably, the third tenon 71 includes a third outer surface 711 connected with the second lower groove wall 323 of the second tongue groove 32 and a third bottom surface 712 connected with the third outer surface 711. The second tongue groove 32 The second lower groove wall 323 is used as the top surface of the third tenon 71 . The third tongue groove 72 includes a third inner groove wall 721 connected with the second bottom surface 313 of the second tenon 31 and a third lower groove wall 722 connected with the third inner groove wall 721 . The two bottom surfaces 313 serve as the upper groove walls of the third tongue groove 72 .

More preferably, the first bottom surface 213 includes a first inclined top surface 2131, a second inclined top surface 2132 and a first connecting plane 2133. The first inclined top surface 2131 is connected with the first outer side surface 212 and the first connecting plane 2133. The two inclined top surfaces 2132 are connected to the first connecting plane 2133 and the abutting surface 41 , wherein the height of the end of the first inclined top surface 2131 connecting with the first outer side surface 212 is lower than that of the first inclined top surface 2131 and the first connecting plane 2133 is connected to the height of the end portion, so that the connection between the first inclined top surface 2131 and the first outer side surface 212 is formed with a downwardly protruding second relief 216 . The height of the end of the second inclined top surface 2132 connected to the first connection plane 2133 is higher than the height of the end of the second inclined top surface 2132 connected to the abutment surface 41 , so that the second inclined top surface 2132 is connected to the abutment surface 41 . 41 is formed with a downwardly protruding first relief 215, and the first connecting plane 2133 is a flat surface. The first relief 215 and the second relief 216 constitute a double relief structure. The first tongue groove 22 includes a first upper groove wall 221 , a first inner groove wall 222 and a first lower groove wall 223 . The first lower groove wall 223 is connected to the first inner groove wall 222 and the limiting surface 42 . The first lower groove wall 223 includes a first inclined surface 2231, a second inclined surface 2232 and a second connecting plane 2233. The first inclined surface 2231 is connected to the first inner groove wall 222 and the second connecting plane 2233. The second leaning surface 2232 is connected with the second connecting plane 2233 and the limiting surface 42 , wherein the height of the end of the first leaning surface 2231 connecting with the first inner groove wall 222 is lower than that of the first leaning surface 2231 and the second The height of the end connected by the connecting plane 2233 is such that a downwardly concave second locking groove 226 is formed at the connection between the first inclined surface 2231 and the first inner groove wall 222 . The height of the end of the second inclined surface 2232 connected to the second connecting plane 2233 is higher than the height of the end of the second inclined surface 2232 connected to the limiting surface 42, so that the second inclined surface 2232 is connected to the limiting surface. A first locking groove 225 recessed downward is formed at the connection of 42 . The first lock groove 225 is used for accommodating the first embossment 215 , and the second lock groove 226 is used for accommodating the second embossment 216 , wherein the first lock groove 225 and the second lock groove 226 constitute a double lock groove structure.

Referring to FIG. 18 , the fastening method and process of the second embodiment of the plate unit 10 are the same as the fastening method and process of the first embodiment. After the two plate units 10 are assembled, the second tenon 31 and the The third tenon 71 and the third tenon 72 cooperate with each other under the second tenon 32. The setting direction of the third tenon 71 is the same as that of the first tenon 21, and the third tenon 71 is arranged in the same direction as the first tenon 21. The direction is opposite to the setting direction of the second tenons 31, and the staggered arrangement can increase the tension of the connection lock between the plate units.

In a specific embodiment of the present invention, the overall thickness of the first tenon 21 and the first convex step 51 provided on the side of the plate unit 10 accounts for 20% to 40% of the overall thickness of the plate unit 10 . The thickness of 51 accounts for 40% to 50% of the thickness of the first tenon 21 , and the sum of the vertical maximum height of the second tenon 32 and the thickness of the third tenon 71 accounts for 20% to 40% of the overall thickness of the plate unit 10 , the thickness of the third tenon 71 accounts for 40% to 50% of the vertical maximum height of the second tenon groove 32 . The plate unit 10 is provided with a first tenon 21 , a first protruding step 51 , a second tenon 32 , a third tenon 71 , and the first tenon 22 , the first groove 52 and the second tenon 71 on opposite sides of the plate unit 10 . The tenon 31 and the third tenon-groove 72 ensure that the structural strength between the tenon and the tenon-groove meets the requirements. The overall thickness of the plate unit can be biased toward the middle thickness, and the thickness of the plate unit 10 can be between 9mm and 18mm. Preferably, the thickness of the plate unit is 12mm.

Referring to FIG. 19, there is shown a third embodiment of the panel unit 10 for recessed locking according to the present invention. As shown in FIG. 19 , the difference between the third embodiment and the second embodiment is that the shapes of the second tenon 31 and the second tenon groove 32 are different, and the setting positions of the third tenon 71 and the third tenon groove 72 are different .

The double embossing structure and the double locking groove structure provided in the third embodiment are the same as those in the second embodiment, and the functions of the double embossing structure and the double locking groove structure in the two embodiments are also the same. Both the double embossing structure and the double locking groove structure are used to increase the clamping force of the first tenon groove 22 to the first tenon 21, improve the horizontal buckle tension of the plate unit, and effectively reduce or avoid the plate unit locking tenon Separated from the horizontal seam of the lock slot. As shown in FIGS. 19 , 20 and 23 , after the two plate units 10 are assembled, the first tenon 21 is accommodated in the first tenon groove 22 , and the first relief 215 is accommodated in the first locking groove 225 , the second embossment 216 is accommodated in the second locking groove 226, wherein the first top surface 211 is in contact with the first upper groove wall 221, the first inclined top surface 2131 is in contact with the first inclined surface 2231, the first The connecting plane 2133 is in contact with the second connecting plane 2233. In this way, when the two plate units 10 are separated from each other by the force in the F2 direction, the first inclined top surface 2131 is clamped with the first inclined surface 2231, and the first The top surface 211 is clamped with the first upper groove wall 221, so that the head of the first tenon 21 is clamped by the first upper groove wall 221 and the first inclined surface 2231, so that the head of the first tenon 21 is clamped. It is difficult for the first upper groove wall 221 and the tongue and groove of the first sloping surface 2231 to be propped apart and cannot be disengaged horizontally, thereby increasing the horizontal buckling tension.

Further, the second tongue groove 32 is formed below the first tenon 21 , and a first vertical surface 132 connected to the corresponding edge of the bottom surface 12 is formed below the second tongue groove 32 , and the second tongue groove 32 is The first vertical surface 132 is concave toward the direction of the upper surface 11 , and the second tongue groove 32 is arranged vertically. The second tenon 31 is formed below the first tenon groove 22 , and a second vertical surface 142 is formed below the second tenon which is connected to the edge corresponding to the bottom surface 12 , and the head of the second tenon 31 faces upwards The direction of the surface 11 is upwardly convex. A third tenon 72 is provided below the second tenon 32 , and a third tenon 71 is provided below the second tenon 31 , and the third tenon 71 is matched with the third tenon 72 .

Specifically, the second tongue groove 32 includes a second upper groove wall 321 and a second inner groove wall 322, the second upper groove wall 321 is connected with the abutting surface 41, and the second inner groove wall 322 is connected with the second upper groove wall 321 is connected, and the second inner groove wall 322 is arranged vertically. Preferably, the second inner groove wall 322 and the first vertical surface 132 are located in the same vertical plane. The third tongue groove 72 is disposed between the second tongue groove 32 and the first vertical surface 132 , the third tongue groove 72 is recessed inward from the first vertical surface 132 , and the third tongue groove 72 includes a third upper The slot wall 723, the third inner slot wall 721 and the third lower slot wall 722, wherein the third upper slot wall 723 is connected with the second inner slot wall 322, and the third inner slot wall 721 is connected with the third upper slot wall 723, The third lower groove wall 722 is connected with the third inner groove wall 721 , and the third lower groove wall 722 is connected with the first vertical surface 132 . The second tenon 31 includes a second top surface 311 and a second outer side surface 312 connected to the second top surface 311 , the second outer side surface 312 is arranged vertically, and the second outer side surface 312 is connected to the second vertical surface 142 are arranged in parallel, and the second outer side surface 312 is located at the outer side of the second vertical surface 142 . The third tenon 71 is disposed between the second tenon 31 and the second vertical surface 142 , the third tenon 71 protrudes outward from the second vertical surface 142 , and the third tenon 71 includes a third top Surface 713, third outer surface 711 and third bottom surface 712, the third top surface 713 is connected with the second outer surface 312, the third outer surface 711 is connected with the third top surface 713 and the third bottom surface 712, the third bottom surface 712 is connected to the second vertical surface 142 .

Further, as shown in FIG. 19 , a first inclined guide surface 1321 is provided at the connection between the first vertical surface 132 and the third lower groove wall 722 , and the first inclined guide surface 1321 is connected with the first vertical surface 132 . The end of the first inclined guide surface 1321 is disposed closer to the outside than the end of the first inclined guide surface 1321 connected to the third lower groove wall 722 . Correspondingly, the third outer side surface 711 of the third tenon 71 is an inclined surface, and the end of the third outer side surface 711 connected to the third bottom surface 712 is disposed closer to the inner side. The first inclined guide surface 1321 and the third outer surface 711 play the role of positioning and guiding, which can facilitate the assembly of the plate units by vertical pressing, rotation or translation. 21 , 22 and 24 , during the assembly process of the two plate units 10 , the first inclined guide surface 1321 abuts against the third outer side surface 711 of the third tenon 71 to play the role of contact positioning, Then, under the action of the assembling force, the first inclined guide surface 1321 will move downward along the inclined direction of the third outer side surface 711 , thereby propping up the third tenon groove 72 so that the third tenon groove 72 is buckled in the third tenon groove 72 . On the three tenons 71 , when the two plate units are in a semi-assembled state, the situation that the relevant pre-contact points are mutually collided and cannot be installed or the installation is not smooth occurs.

As shown in FIG. 21 , in the third embodiment, the plate unit 10 also has technical points of L1<L2, L1>L3, L4<L5 and L4>L6, and the functions and effects of these technical points are the same as those of the first embodiment. same. In particular, in the third embodiment, the distance L9 between the lowest point of the third outer side surface 711 of the third tenon 71 and the connection between the second top surface 311 of the second tenon 31 and the limiting surface 42 is greater than the first The minimum distance L10 between the connection between the third lower groove wall 722 of the three tongue grooves 72 and the second vertical surface 132 and the abutting surface 41 , that is, L9>L10, is to place the plate unit 10 with the first tenon 21 on the same The plane moves to the other plate unit 10 with the first tongue groove 22. If the connection between the limiting surface 42 and the second top surface 311 of the second tenon 31 is within the range of the abutting surface 41, since L9>L10 , the lowest point of the third outer side surface 312 of the third tenon 71 is not yet in contact with the connection between the third lower groove wall 722 of the third tenon groove 72 and the first vertical surface 132 . When the edge of the upper surface 11 of the board unit 10 with the first tenon 21 is pressed vertically, the connection between the third outer surface 711 and the third bottom surface 712 of the third tenon 71 is shown in FIG. 22 . and the connection between the third lower groove wall 722 of the third tenon groove 72 and the first vertical surface 132 is an interference fit, that is, the third tenon 71 will spread the notch of the third tenon groove 72, so that the The third tenon 72 is fastened on the third tenon 71 .

As shown in FIG. 20 to FIG. 23 , two adjacent plate units 10 can be fastened by translation and pressing. As shown in FIG. 24 and FIG. 25 , two adjacent plate units 10 can be fastened by rotating and pressing down. Specifically, the buckling method and process of the third embodiment are the same as the buckling method and process of the second embodiment, which will not be repeated here.

As shown in FIG. 26 to FIG. 28 , since the second tongue groove 32 is arranged vertically, and the second inner groove wall 322 of the second tongue groove 32 and the first vertical surface 132 are located in the same vertical surface or the first vertical surface 132 The two inner groove walls 322 are disposed closer to the outside than the first vertical surface 132 , so that an inclined knife can be omitted when the plate unit 10 is processed, that is, the plate unit 10 of the third embodiment only needs to be The horizontal knife, the vertical knife and one inclined knife are sufficient for machining, and the machining of one inclined knife can be omitted compared to the second embodiment.

Referring to FIG. 29, there is shown a fourth embodiment of the panel unit of the present invention for the panel locking panel. As shown in FIG. 29 , the fourth embodiment adds an installation groove 224 on the basis of the third embodiment. The installation groove 224 is opened on the first lower groove wall 223 of the first tongue groove 22 . The installation groove 224 The first lower groove wall 223 is concave downward toward the bottom surface 12 . As shown in FIG. 30 , the installation groove 224 is used for accommodating the installation nails 81 for fixing the plate unit 10 . When assembling the board unit 10, first fix the board unit 10 on the left side, that is, use the mounting nails 81 to fix the board unit 10 on the installation foundation (generally referring to the ground, wall, wood, metal groove, plastic slat keel, etc. ), the mounting nails 81 are driven into the plate unit 10 from the mounting grooves 224 and into the mounting base, the heads of the mounting nails 81 are placed in the mounting grooves 224, and the mounting nails 81 will not interfere with the assembly of the plate unit 10 The cooperation between the first tenon 21 and the first tenon groove 22 . Preferably, the mounting nails 81 are screws.

Referring to FIG. 31, a fifth embodiment of the panel unit of the present invention is shown. As shown in FIG. 31 , the fifth embodiment adds a protrusion 715 and a groove 714 on the basis of the third embodiment. Specifically, a direction is provided between the third tenon 71 and the second vertical surface 142 A lower protruding protrusion 715 and an upwardly concave groove 714 , the protrusion 715 is connected with the third tenon 71 , and the groove 714 is connected with the second vertical surface 142 .

19 and 31, in the fifth embodiment, the second vertical surface 142 is disposed more toward the inner side of the plate unit 10 than the second vertical surface 142 in the third embodiment, so that the third tenon The length of the third bottom surface 712 of the 71 becomes longer, and a protrusion 715 and a groove 714 are arranged at the part of the third bottom surface 712 corresponding to the second tenon 31. As shown in FIG. 32, after the two plate units 10 are assembled , the protrusions 715 and the grooves 714 are located in the division slits 43 between the second vertical surface 142 and the first vertical surface 132 .

The protrusions 715 and the grooves 714 are provided, so that the third tenon 71 can generate a large elastic deformation during the assembly of the plate, so that the assembly of the plate unit is more convenient.

In a specific embodiment, as shown in FIG. 31 , the bottom surface of the protrusion 715 is higher than the bottom surface 12 of the panel unit 10. After the panel unit 10 is assembled, the protrusion 715 is connected to the installation foundation (generally referring to the ground, the wall , wood, metal groove, plastic slatted keel, etc.) leave a gap 716, use the gap 716 to provide a deformation space for the elastic deformation of the third tenon 71, and use the protrusion 715 to contact the mounting base to limit the third The amount of deformation of the tenon 71 avoids damage to the structure of the third tenon 71 during the assembly process. Further, the arrangement of the protrusions 715 enables the protrusions 715 and the third tenon 71 to form a thicker structure, which can ensure that the third tenon 71 is not easily damaged when the plate unit 10 is disassembled and rotated.

In a specific embodiment, the protrusions 715 are arc-shaped protrusions, and the grooves 714 are arc-shaped grooves.

Referring to Fig. 33, a sixth embodiment of the panel unit 10 of the present invention is shown. As shown in FIG. 33 , the sixth embodiment adds a double embossing structure, a double locking groove structure, a first inclined guide surface 1321 and a second inclined guide surface 3121 on the basis of the first embodiment, wherein the double floating structure The convex structure is the first embossing 215 and the second embossing 216, and the double locking groove structure is the first locking groove 225 and the second locking groove 226. The double embossing structure and the double locking groove structure are the same as those in the third embodiment. The embossing structure and the double locking groove structure are the same, and for details, please refer to the description in the third embodiment.

As shown in FIG. 33 , the first inclined guide surface 1321 is provided at the connection between the first vertical surface 132 and the second lower groove wall 323 , and the end of the first inclined guide surface 1321 connected to the first vertical surface 132 is opposite to The end of the first inclined guide surface 1321 connected to the second lower groove wall 323 is disposed closer to the outside. Correspondingly, the second outer surface 312 of the second tenon 31 is provided with a second inclined guide surface 3121 , the second inclined guide surface 3121 is connected with the second bottom surface 313 , and the second inclined guide surface 3121 is connected with the second bottom surface 313 The ends are set closer to the inside. The first inclined guide surface 1321 and the second inclined guide surface 3121 play the role of positioning and guiding, which can facilitate the assembly between the plate units. During the assembly process, the first inclined guide surface 1321 abuts against the second inclined guide surface 3121 on the second tenon 31 to play the role of contact positioning and guiding, and then under the action of the assembly force, the first inclined guide surface 3121 The surface 1321 will move down along the second inclined guide surface 3121, and then open the second tenon groove 32, so that the second tenon groove 32 can be smoothly buckled on the second tenon 31, which can avoid the assembly of the board unit. The first vertical surface 132 and the second tenon 31 abut against each other, resulting in failure to install or unsmooth installation.

Referring to FIG. 36, a seventh embodiment of the panel unit 10 of the present invention is shown. As shown in FIG. 36 , on the basis of the first embodiment, the seventh embodiment adds a first embossing protrusion 215 , a first locking groove 225 , a first protruding strip 61 and a first accommodating groove 62 . Specifically, in the seventh embodiment, a first protruding strip 61 is provided below the second tenon 31 , and a first accommodating groove 62 matching the first protruding strip 61 is provided below the second tenon groove 32 . The first accommodating groove 62 can accommodate the first protruding strip 61 . The specific structures of the first protruding strips 61 and the first accommodating grooves 62 are the same as the specific structures of the first protruding strips 61 and the first accommodating grooves 62 in the ninth embodiment. For details, please refer to the description of the ninth embodiment.

As shown in FIG. 36 and FIG. 37 , the first bottom surface 213 and the abutting surface 41 are connected to form a downwardly protruding first relief 215 , and the first bottom surface 213 includes a first oblique subsurface 2134 and a second oblique subsurface 2135 and the first flat surface 2136, the height of the end of the first oblique surface 2134 connecting the first outer side 212 is lower than the height of the end of the first oblique surface 2134 connecting the second oblique surface 2135, The first oblique surface 2134 is an inclined surface; the second oblique surface 2135 and the abutting surface 41 are used as the two sidewall surfaces of the first embossment 215 , and the first flat surface 2136 is used as the first embossment 215 bottom wall. Correspondingly, the first lower groove wall 223 and the limiting surface 42 are connected to form a downwardly concave first locking groove 225, and the first lower groove wall 223 includes a third oblique dividing surface 2234, a fourth oblique dividing surface 2235 and The height of the end of the second flat facet 2236 and the third inclined facet 2234 connected to the first inner groove wall 222 is lower than the height of the end of the third inclined facet 2234 and the fourth inclined facet 2235 , so that the third oblique dividing surface 2234 is an inclined surface; the fourth oblique dividing surface 2235 and the limiting surface 42 serve as the two side groove walls of the first locking groove 225 , and the second flat dividing surface 2236 serves as the first Bottom groove wall of lock groove 225 . After the two plate units 10 are assembled, the first relief 215 is placed in the first locking groove 225 .

Preferably, the inclination angle of the first oblique facet 2134 of the first relief 215 is larger, so that the size of the head of the first tenon 21 is larger than the size of the tail, that is, the first outer side 212 is connected to the first top. The distance between the end of the surface 211 and the end of the first outer side surface 212 connected to the first oblique facet 2134 is greater than the distance between the end of the first top surface 211 and the first convex step 51 from the first inclined facet 2134 connects the distance between the ends of the second oblique facets 2135 . The first locking groove 225 is adapted to the first embossment 215, and the inclination angle of the third oblique facet 2234 is also larger, so that the size of the notch of the first tongue groove 22 is smaller than the size of the groove bottom, and the two plate units 10 After the assembly is completed, the first oblique surface 2134 and the third oblique surface 2234 are in close contact with each other, and the third oblique surface 2234 and the first upper groove wall 221 clamp the first tenon 21. When the head of the first tenon 21 is to be separated from each other in the horizontal direction, the head of the first tenon 21 is tightly clamped in the first tenon groove 22. When the first inclined face 2134 of the inclined surface 21 is attached to the third inclined face 2234 of the first tongue groove 22 which is also an inclined face and wants to be horizontally separated from each other, the displacement direction of the first inclined face 2134 must be When the inclined surface is displaced upward, that is, the first top surface 211 and the first lateral surface 511 of the first tenon 21 are pressed against the first upper groove wall 221 and the first lateral wall surface 521 of the first tenon groove 22 and are more clamped. , so that the two plate units 10 cannot be separated horizontally. Further, the limiting surface 42 is in close contact with the resting surface 41, and the limiting surface 42 limits the horizontal displacement of the resting surface 41, so that the first tenon 21 cannot prop up the first tenon groove 22, the A tenon 21 is tightly clamped in the first tenon groove 22 by the first upper groove wall 221 and the third oblique dividing surface 2234, thereby increasing the horizontal buckling tension between the two plate units.

Referring to FIG. 38, there is shown an eighth embodiment of the panel unit 10 of the present invention for the panel locking panel. As shown in FIG. 38 , the eighth embodiment is based on the modification of the third embodiment. On the basis of the third embodiment, the shapes of the third tenon 71 and the third tenon groove 72 are changed, and the first float is also changed. The shape of the protrusion 215 and the first locking groove 225. Specifically, the third tenon 71 includes a third top surface 713 , a third outer side surface 711 and a third bottom surface 712 . The third top surface 713 is an inclined surface inclined outward, and the third bottom surface 712 is inclined inward. Inclined surface, the third outer side surface 711 is also an inclined surface, and the end of the third outer side surface 711 connected with the third top surface 713 is closer to the outside than the end connected with the third outer side surface 711 and the third bottom surface 712; the third The tongue groove 72 includes a third inner groove wall 721 and a third lower groove wall 722. The third inner groove wall 721 is an inclined surface inclined inward, and the third lower groove wall 722 is an inclined surface inclined outward. A first inclined guide surface 1321 is provided at the connection between the first vertical surface 132 and the third lower groove wall 722 , and the connecting end of the first inclined guide surface 1321 and the first vertical surface 132 is opposite to the first inclined guide surface The end of the 1321 connected to the third lower groove wall 722 is disposed closer to the outside. The first inclined guide surface 1321 and the third outer side surface 711 play the role of positioning and guiding, which can facilitate the assembly of plate units. The positioning and guiding functions of the two oblique guide surfaces (ie, the first oblique guide surface 1321 and the third outer side surface 711 ) are the same as those of the oblique guide surfaces in the third embodiment. For details, please refer to the third embodiment. illustrate.

As shown in FIG. 38 and FIG. 39 , the first bottom surface 213 is connected with the abutting surface 41 to form a first embossment 215 that protrudes downward, and the first lower groove wall 223 is connected to the limiting surface 42 to form a downwardly concave first protrusion 215 . A locking groove 225, the first bottom surface 213 includes a first oblique subsurface 2134, a second oblique subsurface 2135 and a first flat subsurface 2136, the first oblique subsurface 2134 is connected to the end of the first outer side surface 212 The height is lower than the height of the end of the first inclined facet 2134 connecting the second inclined facet 2135, so that the first inclined facet 2134 is an inclined plane; the second inclined facet 2135 and the abutment surface 41 serve as On the two sidewall surfaces of the first embossment 215, the first flat face 2136 serves as the bottom wall of the first embossment 215, wherein the height of the highest point of the first oblique facet 2134 is the same as the height of the second upper groove wall 321. Height is close to the same. Correspondingly, the first lower groove wall 223 includes a third inclined facet 2234 , a fourth inclined facet 2235 and a second flat facet 2236 , and the third inclined facet 2234 is connected to the first inner groove wall 222 . The height of the end portion is lower than the height of the end portion where the third inclined facet 2234 is connected to the fourth inclined facet 2235, so that the third inclined facet 2234 is an inclined plane; the fourth inclined facet 2235 and the limit The bit surface 42 serves as the two side walls of the first lock slot 225 , the second flat face 2236 serves as the bottom wall of the first lock slot 225 , and the height of the highest point of the third inclined face 2234 is the same as that of the second flat face 2236 . The height of the second top surface 311 of the tenon 31 is approximately the same. After the two plate units are assembled, the first oblique facet 2134 and the third inclined facet 2234 are in close contact with each other, the first embossment 215 is placed in the first lock groove 225, and the two plate units are separated from each other when the two plate units are separated from each other. When the force is applied, the first oblique face 2134 is in close contact with the inclined surface of the third inclined face 2234 of the first tongue groove 22 and is lifted upwards, which promotes the linkage between the first top surface 211 of the first tenon 21 and the first transverse direction. The surface 511 is tightly pressed against the first upper groove wall 221 and the first transverse wall surface 521 of the first tenon groove 22, which limits the separation of the two plate units based on the great clamping force, and improves the efficiency of the two plates. Horizontal snap tension between elements.

The lowest point of the first relief 215 is higher than the connection between the third outer side surface 721 and the second inner groove wall 322 , and the connection between the third oblique subsurface 2234 and the fourth oblique subsurface 2235 of the first lower groove wall 223 is higher than the second top surface 311 of the second tenon 31 . The second inner groove wall 322 and the first vertical surface 132 are located in the same vertical plane, or the second inner groove wall 322 is disposed closer to the outer side than the first vertical surface 132 . Thereby, the plate unit 10 of the eighth embodiment can omit an inclined knife during processing.

Referring to FIG. 40, there is shown a ninth embodiment of the panel unit 10 of the present invention for the panel locking panel. As shown in FIG. 40 , the difference between the ninth embodiment and the first embodiment is that a first protruding strip 61 is provided below the second tenon 31 , and a first protruding strip 61 is provided below the second tenon 32 . The first accommodating groove 62 is matched; the first bottom surface 213 of the first tenon 21 is provided with a double relief structure, and the first lower groove wall 223 of the first tenon groove 22 is provided with a double locking groove structure. Specifically, the second tongue groove 32 has a second upper groove wall 321 , a second inner groove wall 322 and a second lower groove wall 323 , and the second tenon 31 has a second top surface 311 , a second outer side surface 312 and a first Two bottom surfaces 313 , a first convex strip 61 protruding outward is formed between the second bottom surface 313 of the second tenon 31 and the second vertical surface 142 , and the first convex strip 61 extends from the second vertical surface 142 bulge out. Between the second lower groove wall 323 of the second tongue groove 32 and the first vertical surface 132 is a first receiving groove 62 recessed inwardly, and the first receiving groove 62 is recessed inward from the first vertical surface 132 ; The first accommodating groove 62 is matched with the first protruding strip 61 , and the first accommodating groove 62 can accommodate the first protruding strip 61 .

Preferably, the first protruding strip 61 includes a first abutting surface 611 connected with the second bottom surface 313 and a first pressing surface 612 connected with the first abutting surface 611 . The vertical surface 142 is connected, a first guide surface 613 is provided between the first pressing surface 612 and the first abutting surface 611 , the first guiding surface 613 is inclined, and the first guiding surface 613 is connected to the first pressing surface 613 A chamfer is provided at the connection between the surface 612 and the first abutting surface 611 . The first guide surface 613 plays a guiding role, and when the plate unit 10 is assembled, the first accommodating groove 62 can be easily snapped onto the first protruding strip 61 by guiding the first accommodating groove 62 through the first guide surface 613 . To facilitate installation, the connection between the first abutting surface 611 and the second bottom surface 313 , the connection between the first abutting surface 611 and the first pressing surface 612 , and the connection between the first pressing surface 612 and the second vertical surface 142 The joints are all designed with chamfer transition. The first accommodating groove 62 includes a first abutting surface 621 connected with the second lower groove wall 323 and a first clamping surface 622 connected with the first abutting surface 621 , the first clamping surface 622 is vertically aligned with the first clamping surface 622 . Connecting to the face 132, in order to facilitate the installation, the connection between the first bonding surface 621 and the second lower groove wall 323, the connection between the first bonding surface 621 and the first clamping surface 622, and the first clamping surface 622 and the Chamfers are provided at the joints of the first vertical surfaces 132 .

Further, the first pressing surface 612 of the first protruding strip 61 is slightly inclined, and the end of the first pressing surface 612 connected to the first abutting surface 611 is higher than the first pressing surface 612 and the first pressing surface 612 . The connection between the two vertical surfaces 142 . Correspondingly, the first clamping surface 622 of the first accommodating groove 62 is also slightly inclined, so that after the first pressing surface 612 and the first clamping surface 622 are in contact with each other, as shown in FIG. When the clamping surface 622 moves in an obliquely upward direction, the first pressing surface 612 can be clamped with the first clamping surface 622 to achieve a restraining and limiting effect.

The double embossing structure and the double locking groove structure in the ninth embodiment are the same as the double embossing structure and the double locking groove structure in the third embodiment. The convex structure is composed of a first lock groove 225 and a second lock groove 226 to form a double lock groove structure, wherein the first lock groove 225 is used to accommodate the first embossment 215, and the second lock groove 226 is used to accommodate the second Emboss 216 . The double embossing structure and double locking groove structure are used to increase the clamping force of the tenon and groove, and improve the horizontal buckle tension of the plate unit, which can effectively reduce or avoid the horizontal separation of the locking tenon and the locking groove of the plate unit. The specific structure description of the double embossing structure and the double locking groove structure can refer to the structure description of the third embodiment, and the principle of improving the horizontal buckle tension of the plate unit can also be referred to the description of the third embodiment.

The second tenon 32 and the first accommodating groove 62 are designed at the side edge 13 of the plate unit 10 , and the second tenon 31 and the first convex strip 61 are designed at the side edge 14 . It is more conducive to the installation to reduce the coefficient of interference deformation during the installation of the plate. 40 , 41 and 44 , after the two plate units 10 are assembled, the first abutting surface 131 is attached to the second abutting surface 141 , and the first tenon 21 is placed in the first tenon groove 22 . The first convex step 51 is placed in the first groove 52 , the second tenon groove 32 is fastened on the second tenon 31 , the first accommodating groove 62 is fastened on the first convex strip 61 , and the first vertical surface 132 It is disposed opposite to the second vertical surface 142 , and a separation slit 43 is formed between the first vertical surface 132 and the second vertical surface 142 . In this way, the two plate units 10 achieve bidirectional locking positioning. When the two plate units 10 shrink in a dry environment, the two plate units 10 will move in the direction shown by F2 in FIG. 44 , that is, the right side The plate unit 10 moves to the right, the left plate unit 10 moves to the left, the second tenon 31 and the first tenon 21 block each other, and the abutting surface 41 and the limiting surface 42 are in close contact, which can limit the two The plate units 10 are separated from each other in the direction shown by F2, and the cooperation of the double embossing structure and the double locking groove structure increases the force of the first tenon 22 to clamp the displacement of the first tenon 21, which can further increase. Horizontal snap tension between large plate units. If the force generated by the drying shrinkage is relatively large, the plate unit 10 on the right will move upwards obliquely in the direction indicated by F1 through the guidance of the limiting surface 42 . Interference fit, the double embossing and double locking groove structure between the first tenon 21 and the first tenon groove 22 is an interference fit, the first convex step 51 and the first groove 52 are interference fit, the second tenon groove 32 and the The interference fit between the second tenons 31 and the interference fit between the first protruding strips 61 and the first accommodating grooves 62 are specifically: the abutting surface (41) and the limiting surface (42) abut to form the first restraining point ; The double embossing and double locking groove structure between the first tenon 21 and the first tenon groove 22 form a second pinning point by interference fit; the first top surface 211 of the first tenon 21 and the first tenon groove 22 The first upper groove wall 221 is clamped to form the third restraint point; the first lateral surface 511 of the first convex step 51 is clamped with the first transverse wall surface 521 of the first groove 52 to form the fourth restraint point , the second lower groove wall 323 of the second tenon groove 32 is clamped with the second bottom surface 313 of the second tenon 31 to form a fifth pinning point; the first clamping surface 622 of the first groove 62 is connected to the first The first pressing surfaces 612 of the protruding strips 61 are clamped together to form a sixth pinning point. The first to sixth restraining action points generate mutual restraining force, which can well ensure that the two plate units 10 are not separated from the seam or separated, and have a good locking and limiting function. This structural design increases the lock of the plate. Buckle connection pull. When the first tenon 21 moves obliquely upward in the direction indicated by F1, the abutting surface 41 presses the limiting surface 42 and tries to stretch the first tenon groove 22. At this time, there are the second to sixth restraining points. Containment, that is, the second lower groove wall 323 is against the second bottom surface 313, the first clamping surface 622 is against the first pressing surface 612, the first upper groove wall 221 is pressed against the first top surface 211, the first horizontal The wall surface 521 presses the first lateral surface 511 , and the double embossing and double locking groove structure bears against the first bottom surface 213 of the first tenon 21 . The transverse wall surfaces 521 cooperate to clamp the first tenon 21, so that the first tenon groove 22 cannot be stretched, and a stable locking effect is achieved. In addition, due to the arrangement of the first protruding strips 61 and the first accommodating grooves 62, the two plate units 10 are very difficult to be released and separated after being fastened together, and a relatively large inclination angle and upturning force are required to complete the rotation and disassembly of the plate units. .

In a specific implementation of the ninth embodiment of the present invention, as shown in FIGS. 42 and 43 , the connection between the first bottom surface 213 of the first tenon 21 and the abutting surface 41 and the first tenon 21 The horizontal distance L1 between the outermost vertical extension lines of the first outer side surface 212 is smaller than the horizontal distance L2 between the vertical extension lines of the highest point of the limiting surface 42 and the lowest point of the first vertical wall surface 522, ie L1<L2.

The horizontal distance L1 between the connection between the first bottom surface 213 of the first tenon 21 and the abutting surface 41 and the outermost vertical extension line of the first outer side surface 212 of the first tenon 21 is greater than the first tenon groove 22 . The horizontal distance L3 between the connection between the lower groove wall 223 and the limiting surface 42 and the vertical extension line of the lowest point of the first longitudinal wall surface 522 of the first groove 52 is L1>L3.

The maximum horizontal distance L4 between the first abutting surface 131 and the first outer side surface 212 of the first tenon 21 is smaller than the maximum horizontal distance L5 between the second abutting surface 141 and the first inner groove wall 222 of the first tongue groove 22, That is, L4<L5, as shown in FIG. 44 , when the first abutting surface 131 and the second abutting surface 141 are in close contact, the first outer side surface 212 of the first tenon 21 and the first inner groove of the first tenon groove 22 There are gaps between the walls 222. A gap is also left between the second outer side surface 312 of the second tenon 31 and the second inner groove wall 322 of the second tongue groove 32 . The maximum horizontal distance L4 between the first abutting surface 131 and the first outer side surface 212 of the first tenon 21 is greater than the maximum horizontal distance L6 between the second abutting surface 141 and the first vertical wall surface 522 , that is, L4 > L6 .

As shown in FIGS. 40 and 42 , the connection between the second outer side surface 312 of the second tenon 31 and the second bottom surface 313 and the connection between the limiting surface 42 and the second top surface 311 of the second tenon 31 The distance L7 is greater than the minimum distance L8 between the connection between the second lower groove wall 323 of the second tongue groove 32 and the first abutment surface 621 of the first accommodating groove 62 and the abutting surface 41 , that is, L7>L8. When the plate unit 10 is assembled, the second tenon 31 can spread the second tenon 32 so that the second tenon 32 can be smoothly buckled on the second tenon 31 .

In a specific embodiment of the present invention, the horizontal distance L11 between the first outer side surface 212 of the first tenon 21 and the highest point of the abutting surface 41 is greater than or equal to the first distance between the first abutting surface 131 and the first tenon 21 . The maximum horizontal distance L4 between the outer sides 212 is 3 times, that is, L11≥L4*3. Thereby, when the plate unit 10 is assembled, the first tenon 21 stretches the first tenon groove 22 and engages in the first tenon groove 22, and the first protruding step 51 spreads the first groove 52 and engages in the first tenon groove 22. In a groove 52, in the process of spreading the first tenon groove 22 and the first groove 52, the first tenon 21 and the first convex step 51 will be subjected to a reaction force. The tenon 21 and the first convex step 51 can be rotated and deformed downward with the highest point of the abutting surface 41 as a fulcrum. When L11 is greater than or equal to 3 times L4, the highest point of the abutting surface 41 as the pivot point can be closer to The inner side of the plate unit 10 makes the first tenon 21 and the first convex step 51 have a certain amount of rotational deformation, so as to avoid damage to the first tenon 21 and the first convex step 51 during the assembly process of the plate unit 10 The phenomenon. If L11 is designed to be smaller, for example, when L11=2*L4, the highest point of the abutting surface 41 is closer to the outside of the plate unit 10, so that the first tenon 21 and the first convex step 51 are rotated and deformed downward. The fulcrum is closer to the outside of the plate unit 10 , so that the rotational deformation of the first tenon 21 and the first convex step 51 is small, and the first tenon 21 is easily damaged when the plate unit 10 is assembled.

In a specific embodiment of the present invention, the abutting surface 41 and the limiting surface 42 are arc surfaces. The cambered surface is used as a guide, and the cambered surface is preferably a circular cambered surface, which can better assemble the two panel units 10 and pave the connected panel after the buckle, and can greatly reduce the friction noise when stepping on in use.

In a specific embodiment of the present invention, the overall thickness of the first tenon 21 and the first convex step 51 provided on the side of the plate unit 10 accounts for 20% to 40% of the overall thickness of the plate unit 10, and the second tenon The sum of the vertical maximum height of the groove 32 and the vertical maximum height of the first accommodating groove 62 accounts for 20% to 40% of the overall thickness of the plate unit 10 , wherein the vertical maximum height of the first accommodating groove 62 accounts for the second tongue groove 32 40% to 50% of the vertical maximum height. The opposite sides of the plate unit 10 are provided with a first tenon 21 , a first convex step 51 , a second tenon 32 , a first accommodating groove 62 and a first tenon 22 , a first groove 52 , and a second convex The tenon 31 and the first protruding strip 61, on the premise that the structural strength between the tenon and the tenon and the groove meets the requirements, the overall thickness of the plate unit can be relatively thin, and the thickness of the plate unit can be between 6mm and 18mm. Preferably, the thickness of the plate unit is 15mm.

As shown in FIG. 42 to FIG. 44 , two adjacent plate units 10 can pass through the first tenon 21 and the first tenon groove 22 , the second tenon 31 and the second tenon groove 32 , and the first convex strip 61 and the first tenon groove 32 . An accommodating groove 62 is fastened by translation and pressing. Specifically, the plate unit 10 with the first tenon 21 is moved to the plate unit 10 with the first tenon 22 in the same plane. The tenon 21 begins to enter the first tenon groove 22, and the notch of the second tenon groove 32 is fastened to the head of the second tenon 31, so that the first outer side surface 212 of the first tenon 21 and the first groove 52 are in contact with each other. The first vertical wall surface 522 is attached to each other, the first longitudinal surface 512 of the first convex step 51 is attached to the second abutting surface 141 , and the bottom of the abutting surface 41 corresponds to the top of the limiting surface 42 in FIG. Let the resting surface 41 fall on the limiting surface 42 so that the bottom of the resting surface 41 is in contact with the top of the limiting surface 42, and then continue to push the plate unit 10 with the first tenon 21, so that the first top The connection between the surface 211 and the first outer side surface 212 is in contact with the connection between the first longitudinal wall surface 522 and the first upper groove wall 221, and the abutting surface 41 and the limiting surface 42 are in an interference state. At this time, another plate unit The first tongue groove 22 of the 10 will be elastically deformed and stretched open. At this time, it is impossible to continue to push the plate unit 10 with the first tenon 21 on the same plane, and then press the upper surface of the plate unit 10 with the first tenon 21. 11 Apply a vertical downward pressing force, that is, apply force in a vertical pressing manner to the upper surface 11 vertically above the abutting surface 41, and as shown in FIG. 44, press the first tenon 21 into the first tenon in a pressing manner In the groove 22 , the first convex step 51 is pressed into the first groove 52 , the second tenon groove 32 is snapped on the second tenon 31 , and the first accommodating groove 62 is snapped on the first protruding strip 61 . The fastening between the two plate units 10 is achieved.

As shown in FIG. 45 and FIG. 46 , two adjacent plate units 10 can pass through the first tenon 21 and the first tenon groove 22 , the first convex step 51 and the first groove 52 , the second tenon 31 and the first tenon 31 and the first groove 52 . The two tenon grooves 32 are fastened together with the first protruding strip 61 and the first accommodating groove 62 by rotating and pressing down. In the plate unit 10 of the groove 22, the first tenon 21 is partially inserted into the first tenon groove 22, and the second tenon groove 32 is partially covered and buckled on the second tenon 31, so that the first butt surface 131 and the second butt surface 141 abut against each other, and then use the abutting position as the contact point to rotate and press the plate unit 10 with the first tenon 21, so that the first tenon 21 enters the first tenon groove 22, and the first convex step 51 enters the In the first groove 52 , the second tenon 32 is fastened on the second tenon 31 , and the first accommodating groove 62 is fastened on the first protruding strip 61 , that is, the two-way locking connection between the plate units 10 is realized.

In a modification of the ninth embodiment, the double embossing structure and the double locking groove structure in the ninth embodiment are changed to a first embossing 215 and a first locking groove 225, and the first embossing 215 and the first embossing The specific structure of the locking groove 225 is the same as that of the first embossing protrusion 215 and the first locking groove 225 in the eighth embodiment, and for details, please refer to the structure description of the eighth embodiment.

Referring to FIG. 47, there is shown a tenth embodiment of the panel unit 10 of the present invention for the panel locking panel. As shown in FIG. 47 , the difference between the tenth embodiment and the ninth embodiment is that the double embossing structure and the double locking groove structure are omitted, and the first lower groove wall 223 is provided with a downwardly concave installation groove 224 48, the installation groove 224 is used to accommodate the installation nails 81, and the installation nails 81 are used to fix the plate unit 10 on the installation foundation (generally referring to the ground, wall, wood, metal groove, plastic slatted keel, etc. ), the head of the mounting nail 81 is placed in the mounting groove 224, and the mounting nail 81 will not interfere with the cooperation between the first tenon 21 and the first tenon groove 22 when the panel unit 10 is assembled. Preferably, the mounting nails 81 are screws. As shown in FIG. 49 , nails 82 may be driven into the installation groove 224 to fix the plate unit 10 , and staples 83 may be driven to fix the plate unit 10 .

Referring to FIG. 50, there is shown an eleventh embodiment of the panel unit 10 of the present invention for the panel locking panel. As shown in FIG. 50 , the difference between the eleventh embodiment and the ninth embodiment is that a second convex step 53 is provided above the first convex step 51 , and a second groove 54 is provided above the first groove 52 , the second groove 54 is adapted to the second convex step 53 . Specifically, between the first top surface 211 of the first tenon 21 and the first abutting surface 131 are formed a first convex step 51 and a second convex step 53 that protrude outward and are stepped. Both the 51 and the second convex step 53 protrude outward from the first abutting surface 131 . A stepped first groove 52 and a second groove 54 are formed between the first upper groove wall 221 of the first tongue groove 22 and the second abutting surface 141 . The grooves 54 are all concave inward from the second abutting surface 141 . The first groove 52 is matched with the first convex step 51, and the first groove 52 can accommodate the first convex step 51; the second groove 54 is matched with the second convex step 53, and the second groove 54 can accommodate the first convex step 51. The second convex step 53 is accommodated.

Preferably, the first convex step 51 includes a first transverse surface 511 and a first longitudinal surface 512 connected with the first transverse surface 511 , and the first longitudinal surface 512 is connected with the first top surface 211 of the first tenon 21 . . The second convex step 53 includes a second transverse surface 531 and a second longitudinal surface 532 connected with the second transverse surface 531 , the second longitudinal surface 532 is connected with the first transverse surface 511 , and the second transverse surface 531 is butted with the first transverse surface 531 . face 131 is connected. Further, a first oblique surface 513 is provided between the first lateral surface 511 and the first vertical surface 512 , and the first lateral surface 511 and the first vertical surface 512 are connected by the first oblique surface 513 . The first inclined surface 513 plays a guiding role, and when the plate unit 10 is assembled, the first convex step 51 is guided to easily slide into the first groove 52 through the first inclined surface 513 . A second oblique surface 533 is provided between the second transverse surface 531 and the second longitudinal surface 532 , and the second transverse surface 531 and the second longitudinal surface 532 are connected by the second oblique surface 533 . The second inclined surface 533 plays a guiding role, and the second inclined surface 533 guides the second convex step 53 to easily slide into the second groove 54 when the plate unit 10 is assembled.

The first groove 52 includes a first longitudinal wall surface 522 connected with the first transverse wall surface 521 and the first transverse wall surface 521 , and the first longitudinal wall surface 522 is connected with the first upper groove wall 221 . The second groove 54 includes a second transverse wall surface 541 and a second longitudinal wall surface 542 , the second longitudinal wall surface 542 is connected with the first transverse wall surface 521 , and the second transverse wall surface 541 is connected with the second abutting surface 141 .

The first convex step 51 and the second convex step 53 are designed on one side of the plate unit 10 , and the first groove 52 and the second groove 54 are designed on the other side to form the first tongue groove 22 with a wider depth, which can be enlarged Tenon and groove lock connection tension of plate. 51 and 54, after the two plate units 10 are assembled, the first abutting surface 131 is attached to the second abutting surface 141, the first tenon 21 is placed in the first tenon groove 22, and the first The step 51 is placed in the first groove 52, the second convex step 53 is placed in the second groove 54, the second tenon 32 is snapped on the second tenon 31, the first vertical surface 132 and the second vertical The facing surfaces 142 are disposed opposite to each other, and a separation slit 43 is formed between the first vertical surface 132 and the second vertical surface 142 . In this way, the first tenon 21 of one plate unit 10 can be pre-inserted into the first tenon 22 of the other plate unit 10 by about two-thirds of the depth, and then the second tenon 32 can be supplemented to correspond to By snapping on the second tenon 31, the edge of the upper surface 11 of the plate unit 10 with the first tenon 21 can be pressed, and two plate units 10 can be realized by applying a little force and pressing vertically. The two-way tenon and the groove are locked and connected. The first tenon 21 plus the first convex step 51 and the second convex step 53 are the elongated tenon and the first tenon groove 22 and the second tenon groove 32. After the two tenons 31 are installed, the formed double tenons and grooves are connected to each other, and the plate units that are restrained by each other are connected and buckled, which can extremely effectively prevent the first tenon 21 and the second tenon when the material shrinks in size in a dry environment. The tenon 31 easily slips out of the clamping of the first tenon groove 22 and the second tenon groove 32 to cause the release and separation of the plate units, that is, the connection and buckle stability of the plate units 10 can be greatly improved.

As shown in FIG. 54 , when the two plate units 10 dry and shrink, the two plate units 10 will move along the direction shown by F2 in FIG. 54 , that is, the plate unit 10 on the right moves to the right, and the plate unit 10 on the left moves to the right. The plate unit 10 moves to the left, the second tenon 31 and the first tenon 21 block each other, and the abutting surface 41 is in close contact with the limiting surface 42, which can restrict the separation of the two plate units 10 in the direction shown by F2 . If the force generated by the drying shrinkage is relatively large, the plate unit 10 on the right will move upwards obliquely in the direction indicated by F1 through the guidance of the limiting surface 42 . The interference fit, the interference fit between the second convex step 53 and the second groove 54 , the interference fit between the first convex step 51 and the first groove 52 , the interference fit between the first tenon 21 and the first tenon groove 22 , the interference fit between the second tenon groove 32 and the second tenon 31 is specifically: the second lateral surface 531 of the second convex step 53 is clamped with the second lateral wall surface 541 of the second groove 54 to form a first Pinning point; the first transverse surface 511 of the first convex step 51 is clamped with the first transverse wall surface 521 of the first groove 52 to form a second pinning point; the first top surface 211 of the first tenon 21 is connected to the The first upper groove wall 221 of the first tenon groove 22 is clamped to form a third pinning point; the second lower groove wall 323 of the second tenon groove 32 is clamped with the second bottom surface 313 of the second tenon 31 . The fourth restraining point is formed; the first clamping surface 622 of the first accommodating groove 62 is clamped with the first pressing surface 612 of the first protruding strip 61 to form the fifth restraining point; the limiting surface 42 and the abutting surface 41 is closely attached and clamped to form the sixth pinning point. The first to sixth restraining action points generate mutual restraining force, which can well ensure that the two plate units 10 are not separated or separated, and play a good locking and limiting function. The structural design increases the The latching tension of the sheet. In addition, the first protruding step 51 and the second protruding step 53 and the first tenon 21 form a stepped structure, and the first protruding strip 61 and the second tenon 31 also form a stepped structure, so that the sides of the plate unit 10 The outwardly protruding part is the overall width of the stepped structure. Correspondingly, the first tongue groove 22 and the second tongue groove 32 are also formed with a stepped groove that is concave inward. The width of the part of one plate unit 10 extending into the other plate unit 10 is the overall width of the stepped structure formed by the first convex step 51 , the second convex step 53 and the first tenon 21 , which is relatively deep and long. The width of the part of a board unit 10 extending into a board unit 10 is the overall width of the stepped structure formed by the first protruding strip 61 and the second tenon 31 , that is, the part where the two board units 10 are assembled and stacked is The overall width of the stepped structure forms a relatively deep and long tenon and groove to engage with each other, thus increasing the tension of the lock, which can effectively solve the problem that the narrow and short tenon in the prior art is easy to fall out of the tenon and groove clamping and cause the Tripping separation problem between plate units. The present invention reduces the length of the first tenon 21 , the first protruding step 51 , the second protruding step 53 and the second tenon 31 and the first protruding strip 61 on the other side 14 of the plate unit 10 to form a deeper and longer tenon Due to the difficulty of installing the protruding part, the step-by-step pre-buckling method is specially designed. During assembly, the first tenon 21 is pre-stretched into two-thirds of the first tenon groove 22, and the second tenon groove is inserted into the first tenon groove 22. One-half of the cover 32 is fastened on the second tenon 31, so that the assembly interference resistance between the two plate units 10 becomes very small, and then the two plate units can be easily completed by pressing vertically with a little force. The installation action of all the snap-in connections realizes the straight-drop two-way locking installation in which the first tenon 21 is installed in the first tenon groove 22 and the second tenon groove 32 is completely snapped on the second tenon 31 .

In a specific embodiment of the present invention, as shown in FIG. 53 , the connection between the first bottom surface 213 of the first tenon 21 and the abutting surface 41 and the outermost side of the first outer side surface 212 of the first tenon 21 The horizontal distance L1 between the vertically extending lines is smaller than the horizontal distance L2 between the vertical extending lines between the highest point of the limiting surface 42 and the lowest point of the first vertical wall surface 522, ie, L1<L2. The horizontal distance L1 between the connection between the first bottom surface 213 of the first tenon 21 and the abutting surface 41 and the outermost vertical extension line of the first outer side surface 212 of the first tenon 21 is greater than the first tenon groove 22 . The horizontal distance L3 between the connection between the lower groove wall 223 and the limiting surface 42 and the vertical extension line of the lowest point of the first longitudinal wall surface 522 of the first groove 52 , that is, L1 > L3 .

The maximum horizontal distance L4 between the first abutting surface 131 and the first outer side surface 212 of the first tenon 21 is smaller than the maximum horizontal distance L5 between the second abutting surface 141 and the first inner groove wall 222 of the first tongue groove 22, That is, L4<L5, as shown in FIG. 54 , when the first abutting surface 131 and the second abutting surface 141 are in close contact, the first outer side surface 212 of the first tenon 21 and the first inner groove of the first tenon groove 22 There are gaps between the walls 222. The maximum horizontal distance L4 between the first abutting surface 131 and the first outer side surface 212 of the first tenon 21 is greater than the maximum horizontal distance L6 between the second abutting surface 141 and the first vertical wall surface 522 , that is, L4 > L6 .

The distance L7 between the connection between the second outer side surface 312 of the second tenon 31 and the second bottom surface 313 and the connection between the limiting surface 42 and the second top surface 311 of the second tenon 31 is greater than the distance L7 of the second tongue groove 32 The minimum distance L8 between the connection between the second lower groove wall 323 and the first abutment surface 621 of the first container 62 and the abutting surface 41 , that is, L7 > L8, whereby, when the plate unit 10 is assembled, the second convex The tenon 31 can open the second tenon groove 32 so that the second tenon groove 32 can be smoothly buckled on the second tenon 31 .

In a modification of the eleventh embodiment, the first bottom surface 213 is formed with a double relief structure and a double lock groove structure. The double relief structure and the double lock groove structure are the same as the double relief structure in the ninth embodiment and The structure of the double lock grooves is the same, for details, please refer to the structure description of the ninth embodiment.

In yet another modification of the eleventh embodiment, the first bottom surface 213 is formed with a first relief 215 and a first locking groove 225 . The specific structures of the first relief 215 and the first locking groove 225 are the same as those of the ninth embodiment. The structures of the first embossment 215 and the first locking groove 225 in the example are the same. For details, please refer to the structure description of the ninth embodiment.

As shown in FIGS. 52 to 54 , two adjacent plate units 10 can pass through the first tenon 21 and the first tenon groove 22 , the first convex step 51 and the first groove 52 , the second convex step 53 and the first groove 52 . The two grooves 54 , the second tenon 31 , the second tenon groove 32 , the first protruding strip 61 and the first accommodating groove 62 are fastened by translation and pressing. The plate unit 10 of the first convex step 51 and the second convex step 53 moves in the same plane to the plate unit 10 with the first tenon 22 , the first groove 52 and the second groove 54 , the first tenon 21 Begin to enter the first tongue groove 22 , the notch of the second tongue groove 32 is fastened to the head of the second tenon 31 , so that the first outer side 212 of the first tenon 21 is connected to the first groove 52 . The vertical wall surfaces 522 are in contact with each other, the first longitudinal surface 512 of the first convex step 51 is in contact with the second longitudinal wall surface 542 of the second groove 54 , and the second longitudinal surface 532 of the second convex step 53 is in contact with the second abutting surface 141 . Then, the abutting surface 41 of the plate unit 10 is brought into contact with the limiting surface 42 , and then the plate unit 10 with the first tenon 21 is pushed in parallel. With reference to FIG. 52 , the second convex step 53 is The second longitudinal surface 532 abuts against the second abutting surface 141 , the first tenon 21 enters about two-thirds of the depth of the first tenon groove 22 , the second tenon groove 32 is covered above the second tenon 32 , at this time The plate unit 10 with the first tenon 21 cannot be pushed further on the same plane. As shown in FIG. 53 and FIG. 54 , the upper surface 11 of the plate unit 10 with the first tenon 21 is pressed downward. Pressure, that is, applying force to the upper surface 11 vertically above the abutting surface 41 in a vertical pressing manner, pressing the first tenon 21 into the first tenon groove 22 in a vertical pressing manner, and pressing the first convex step 51 into the first tenon 21 . In a groove 52 , the second convex step 53 is pressed into the second groove 54 , the second tenon groove 32 is fastened on the second tenon 31 , and the first accommodating groove 62 is fastened on the first convex strip 61 . Thus, the fastening between the two plate units 10 is completed. In this way, after the first tenon 21 of one plate unit 10 is pre-extended into the first tenon groove 22 of the other plate unit 10 by about two-thirds of the depth, the second tenon groove 32 is supplemented by the second tenon groove 32 to be correspondingly snapped on the second plate unit 10 . On the tenon 32, the edge of the upper surface 11 of the plate unit 10 with the first tenon 21 can be pressed, and the two-way tenon and groove of the two plate units 10 can be realized only by applying a little force and adopting a vertical pressing method. When the lock is positioned and pressed, the interference resistance between the two plates is small, and the deformation of the second tenon 31 is the same and small, so it is easier to install.

As shown in FIG. 55 and FIG. 56 , the two adjacent plate units 10 can be fastened by rotating and pressing down. Specifically, the plate unit 10 with the first tenon 21 is inserted into the In the plate unit 10 of the tenon and groove 22, the first tenon 21 is partially inserted into the first tenon groove 22, and the second tenon groove 32 is partially covered and buckled on the second tenon 31, so that the first butt surface 131 is connected to the second butt surface. 141 against each other, and then use the abutting position as the contact point to rotate and press the plate unit 10 with the first tenon 21, so that the first tenon 21 enters the first tenon groove 22, and the first convex step 51 Entering into the first groove 52 , the second convex step 53 entering the second groove 54 , the second tenon groove 32 is fastened to the second tenon 31 , and the first accommodating groove 62 is fastened to the first convex strip 61 , that is, the two-way locking connection of 10 plate units is realized.

Referring to Fig. 57, there is shown a twelfth embodiment of the panel unit 10 of the panel lock panel of the present invention. As shown in FIG. 57 , the difference between the twelfth embodiment and the eleventh embodiment is that the second protruding strips 63 and the second grooves 64 , the double embossing structure and the double locking groove structure are added to play a positioning and guiding role of multiple inclined guide surfaces. A second convex strip 63 is provided below the first convex strip 61, and a second groove 64 is provided below the first groove 62. The second groove 64 is adapted to the second convex strip 63. Specifically, Between the second bottom surface 313 of the second tenon 31 and the second vertical surface 142 are formed first protruding strips 61 and second protruding strips 63 protruding outward, and the first protruding strips 61 and the second protruding strips 63 protrude outward from the second vertical surface 142 ; a first cavity 62 and a second recessed inwardly recessed groove are formed between the second lower groove wall 323 of the second tongue groove 32 and the first vertical surface 132 The accommodating groove 64, the first accommodating groove 62 and the second accommodating groove 64 are both concave inward from the first vertical surface 132, the first accommodating groove 62 is matched with the first protruding strip 61, the first accommodating groove 62 can accommodate the first protruding strip 61 , the second accommodating groove 64 is matched with the second protruding strip 63 , and the second accommodating groove 64 can accommodate the second protruding strip 63 .

The double embossing structure and the double locking groove structure in the twelfth embodiment are the same as the double embossing structure and the double locking groove structure in the third embodiment. The embossing structure is composed of a first locking slot 225 and a second locking slot 226 to form a double locking slot structure, wherein the first locking slot 225 is used for accommodating the first embossing 215, and the second locking slot 226 is used for accommodating the first locking slot 226. Two embossings 216 . The double embossing structure and double locking groove structure are used to increase the clamping force of the tenon and groove, and improve the horizontal buckle tension of the plate unit, which can effectively reduce or avoid the horizontal separation of the locking tenon and the locking groove of the plate unit. The specific structure description of the double embossing structure and the double locking groove structure can refer to the structure description of the third embodiment, and the principle of improving the horizontal buckle tension of the plate unit can also be referred to the description of the third embodiment.

As shown in FIGS. 57 and 59 , the plurality of inclined guide surfaces for positioning and guiding include a first inclined guide surface 1321 , a second inclined guide surface 3121 , a first guide surface 613 , a second guide surface 633 , and a third inclined guide surface The surface 6211 and the fourth inclined guide surface 6411, and the plurality of inclined guide surfaces above are all inclined surfaces. The first oblique guide surface 1321 is formed at the connection between the first vertical surface 132 and the second clamping surface 642 , and the end of the first oblique guide surface 1321 connected to the first vertical surface 132 is opposite to the first oblique surface. The end of the guide surface 1321 connected to the second clamping surface 642 is disposed closer to the outside; the second inclined guide surface 3121 is formed at the connection between the second outer side surface 312 and the second bottom surface 313, and the second inclined guide surface 3121 is connected to the first The end connected with the two outer side surfaces 312 is disposed closer to the outside than the end connected with the second inclined guide surface 3121 and the second bottom surface 313 . The first guide surface 613 is provided between the first abutting surface 611 and the first pressing surface 612 , and the first abutting surface 611 , the first guiding surface 613 and the first pressing surface 612 constitute the first protruding strip 61 . The second guide surface 633 is provided between the second abutting surface 631 and the second pressing surface 632 , and the second abutting surface 631 , the second guiding surface 633 and the second pressing surface 632 constitute the second protruding strip 63 . The third inclined guide surface 6211 is formed at the connection between the first bonding surface 621 and the second lower groove wall 323 , and the fourth inclined guide surface 6411 is formed at the connection between the second bonding surface 641 and the first clamping surface 622 . The above-mentioned inclined guide surfaces play the role of positioning and guiding, which can facilitate the assembly of the plate units. 60, during the assembly process of the two plate units 10, the first inclined guide surface 1321 abuts against the second guide surface 633, the fourth inclined guide surface 6411 abuts against the first guide surface 613, and the third inclined guide surface 6211 abuts against the second inclined guide surface 3121 to play the role of contact positioning, and then under the action of the assembly force, the first inclined guide surface 1321 will move down along the second guide surface 633, and the fourth inclined guide surface 6411 moves down along the first guide surface 613, and the third inclined guide surface 6211 moves down along the second inclined guide surface 3121, thereby propping up the second tongue groove 32, so that the second tongue groove 32 can be smoothly clamped. Buckled on the second tenon 31 , the first groove 62 is buckled on the first convex strip 61 , and the second groove 64 is buckled on the second convex strip 62 , which can avoid the tenon and tenon when the board unit is assembled. The groove structure is dead against each other, which leads to the situation that the installation cannot be installed or the installation is not smooth.

The sides of the plate unit 10 are designed with the first convex steps 51 and the second convex steps 53 and the first convex strips 61 and the second convex strips 63 , which can increase the locking force of the plate. 58 and 61, after the two plate units 10 are assembled, the first abutting surface 131 is attached to the second abutting surface 141, the first tenon 21 is placed in the first tenon groove 22, and the first convex The step 51 is placed in the first groove 52, the second convex step 53 is placed in the second groove 54, the second tenon 32 is fastened to the second tenon 31, and the first groove 62 is fastened to the first groove 54. On the protruding strip 61, the second accommodating groove 64 is snapped on the second protruding strip 63, the first vertical surface 132 and the second vertical surface 142 are arranged facing each other, and the first vertical surface 132 and the second vertical surface Partition slits 43 are formed between the surfaces 142 . In this way, after the first tenon 21 of one plate unit 10 is pre-extended into the first tenon groove 22 of the other plate unit 10 by about two-thirds of the depth, the second tenon groove 32 is supplemented by the second tenon groove 32 to be correspondingly snapped on the second plate unit 10 . On the tenon 31, the edge of the upper surface 11 of the board unit 10 with the first tenon 21 can be pressed, and the two board units 10 can be locked and positioned in two directions only by applying a little force and adopting a vertical pressing method. After the first tenon 21 plus the first convex step 51 and the second convex step 53 , the elongated tenon and the first tenon groove 22 and the second tenon groove 32 are snapped onto the second tenon 31 . The double tenons and grooves are connected to each other, and the plate units that are restrained by each other are connected and buckled, which can greatly improve the connection and buckle stability of the plate unit 10 . As shown in FIG. 61 , when the two plate units 10 shrink in a dry environment, the two plate units 10 will move along the direction shown by F2 in FIG. 61 , that is, the right plate unit 10 moves to the right, and the left The plate unit 10 on the side moves to the left, the second tenon 31 and the first tenon 21 block each other, and the abutting surface 41 is in close contact with the limiting surface 42; The two accommodating grooves 64 are snapped on the first protruding strip 61 and the second protruding strip 63 of the second tenon 31 and pressed against each other, so that the two plate units 10 can be restricted from being separated from each other in the direction shown by F2. If the force generated by the drying shrinkage is relatively large, the plate unit 10 on the right will move upwards obliquely in the direction indicated by F1 through the guidance of the limiting surface 42 . The interference fit, the interference fit between the second convex step 53 and the second groove 54 , the interference fit between the first convex step 51 and the first groove 52 , the interference fit between the first tenon 21 and the first tenon groove 22 , the second tongue groove 32 and the second tenon 31 are in interference fit, the first protruding strip 61 and the first accommodating groove 62 are in interference fit, and the second protruding strip 63 and the second accommodating slot 64 are in interference fit. Specifically: the second lateral surface 531 of the second convex step 53 is clamped with the second lateral wall surface 541 of the second groove 54 to form a first containment point; the first lateral surface 511 of the first convex step 51 The first lateral wall surface 521 of a groove 52 is clamped to form a second pinning point; the first top surface 211 of the first tenon 21 is clamped to the first upper groove wall 221 of the first tenon groove 22 to form a The third pinning point; the second lower groove wall 323 of the second tenon groove 32 is clamped with the second bottom surface 313 of the second tenon 31 to form the fourth pinning point; the first clamping point of the first accommodating groove 62 The surface 622 is clamped with the first pressing surface 612 of the first protruding strip 61 to form a fifth pinning point; the second clamping surface 642 of the second accommodating groove 64 and the second pressing surface of the second protruding strip 63 632 are clamped tightly to form the sixth restraint point; the second lock groove 226 accommodates the second embossment 216 to form the seventh restraint point; the limiting surface 42 and the abutment surface 41 are closely clamped to form the eighth restraint point . The first to eighth pinning action points generate mutual pinning force, which can better ensure that the two plate units 10 are not separated from the seam or separated, and have a good locking and limiting function. This structural design increases the lock of the plate. Buckle pull. In addition, the first convex steps 51 and the second convex steps 53 and the first tenon 21 form a stepped structure, and the first convex strip 61 and the second convex strip 63 and the second tenon 31 also form a stepped structure, so that the The width of the outwardly protruding portion of the side edge of the plate unit 10 is the overall width of the stepped structure. After each plate unit 10 is assembled, the width of the part of one plate unit 10 extending into the other plate unit 10 is the whole of the stepped structure formed by the first convex step 51 , the second convex step 53 and the first tenon 21 . Width, the width is relatively deep and long, and the width of the part of the other plate unit 10 extending into one plate unit 10 is the overall width of the stepped structure formed by the first protruding strip 61 , the second protruding strip 63 and the second tenon 31 , that is, the part where the two plate units 10 are assembled and superimposed is the overall width of the stepped structure, and then a relatively long tenon and groove are formed to engage with each other, which increases the tension of the lock, which can effectively solve the problem in the prior art. The tenon with narrow and short width is easy to come out of the tenon and groove clamping, resulting in the tripping and separation between the plate units, and the common butt plate surface at the short side connection between the plate units has the problem of uneven height and drop. In the present invention, the first tenon 21 , the first protruding step 51 , the second protruding step 53 and the second tenon 31 , the first protruding strip 61 and the second protruding strip 63 of the other side 14 of the plate unit 10 are reduced due to the Due to the difficulty of installation of the protruding part of the deep and long tenon formed by superposition, the step-by-step pre-fastening method is specially designed. During assembly, the first tenon 21 is pre-stretched into two-thirds of the first tenon and groove. 22, the second tenon groove 32 is also two-thirds of the cover on the second tenon 31, so that the assembly interference resistance between the two plate units 10 becomes very small, and then the vertical force is applied slightly. Press to easily complete the installation action of all the two plate units being snapped and connected, so that the first tenon 21 is installed in the first tenon groove 22 and the second tenon groove 32 is completely snapped on the second tenon 31. Drop two-way lock installation.

In another modification of the twelfth embodiment, the double embossing structure and the double locking groove structure can also be changed into the structure of the first embossing 215 and the first locking groove 225. The specific structure of a locking groove 225 is the same as the structures of the first embossing protrusion 215 and the first locking groove 225 in the first embodiment. For details, please refer to the structure description of the ninth embodiment.

As shown in FIG. 59, in the eleventh embodiment, the plate unit 10 also has technical points of L1<L2, L1>L3, L4<L5, L4>L6, and L7>L8, and the functions and effects of these technical points The same as the eleventh embodiment.

In a specific embodiment of the present invention, the overall thickness of the first tenon 21 , the first convex step 51 and the second convex step 53 disposed on the side of the plate unit 10 accounts for 20% to 20% of the overall thickness of the plate unit 10 . 50%, wherein the thicknesses of the first convex steps 51 and the second convex steps 53 account for 40% to 50% of the thickness of the first tenon 21 , and the thicknesses of the first convex steps 51 and the second convex steps 53 are the same. The sum of the vertical maximum height of the second tongue groove 32 , the vertical maximum height of the first accommodating groove 62 and the vertical maximum height of the second accommodating groove 64 accounts for 20% to 40% of the overall thickness of the plate unit 10 . The vertical maximum height of the groove 62 and the vertical maximum height of the second accommodating groove 64 account for 20% to 40% of the vertical maximum height of the second tongue groove 32. The maximum height is the same. The opposite sides of the plate unit 10 are provided with a first tenon 21 , a first protruding step 51 , a second protruding step 53 , a second tenon groove 22 , a first accommodating groove 62 , a second accommodating groove 64 and a first tenon The groove 22 , the first groove 52 , the second groove 54 , the second tenon 31 , the first convex strip 61 and the second convex strip 63 , on the premise of ensuring that the structural strength between the tenon and the tenon groove meets the requirements, The overall thickness of the plate unit needs to be thicker, and the thickness of the plate unit is more than 18mm.

As shown in FIG. 59 to FIG. 61 , two adjacent plate units 10 can be fastened by translation and pressing. Specifically, the plate unit 10 with the first tenon 21 is moved to the same plane as the A plate unit 10 with a tongue and groove 22, the first tenon 21 begins to enter the first tongue and groove 22, the notch of the second tongue and groove 32 is fastened to the head of the second tenon 31, and the first convex step 51 Adhere to the groove wall of the second groove 54 so that the abutting surface 41 of the plate unit 10 is in contact with the limiting surface 42 , as shown in FIG. 60 , and then continue to push the plate unit with the first tenon 21. 10, so that the junction of the first top surface 211 and the first outer side 212 is in contact with the junction of the first longitudinal wall surface 522 and the first upper groove wall 221, and the junction of the first lateral surface 511 and the first longitudinal surface 512 The junction between a transverse wall surface 521 and the second longitudinal wall surface 542 abuts against, the junction between the second transverse surface 531 and the second longitudinal surface 532 abuts against the junction between the second abutting surface 141 and the second transverse wall surface 541, and the abutting surface 41 It is in an interference state with the limiting surface 42. At this time, the first inclined guide surface 1321 is in contact with the second guide surface 633, the fourth inclined guide surface 6411 is in contact with the first guide surface 613, and the third inclined guide surface 6211 is in contact with the second guide surface 633. The inclined guide surfaces 3121 abut against each other. At this time, the plate unit 10 with the first tenon 21 cannot be pushed further on the same plane, and then a downward pressing force is applied to the upper surface 11 of the plate unit 10 with the first tenon 21 . , that is, apply force to the edge of the upper surface 11 vertically above the abutting surface 41 in a vertical pressing manner, and as shown in FIG. 61 , press the first tenon 21 into the first tenon groove 22 in a vertical pressing manner. , the first convex step 51 is pressed into the first groove 52, the second convex step 53 is pressed into the second groove 54, the second tenon groove 32 is buckled on the second tenon 31, and the first groove 62 is locked Buckled on the first protruding strip 61 , the second accommodating groove 64 is clipped on the second protruding strip 63 , thereby completing the buckling between the two plate units 10 . When pressing, the interference resistance between the two plates is small, and the deformation of the second tenon is also reduced, so it is easier to install smoothly.

As shown in FIG. 62 and FIG. 63 , two adjacent plate units 10 can be fastened by rotating and pressing down. Specifically, the plate unit 10 with the first tenon 21 is inserted into the In the plate unit 10 of the tenon and groove 22, the first tenon 21 is partially inserted into the first tenon groove 22, and the second tenon groove 32 is partially covered and buckled on the second tenon 31, so that the first butt surface 131 is connected to the second butt surface. 141 against each other, and then use the abutting position as the contact point to rotate and press the plate unit 10 with the first tenon 21, so that the first tenon 21 enters the first tenon groove 22, and the first convex step 51 Entering into the first groove 52 , the second convex step 53 entering the second groove 54 , the second tenon groove 32 is fastened to the second tenon 31 , and the first accommodating groove 62 is fastened to the first convex strip 61 , the second accommodating groove 64 is buckled on the second protruding strip 63 , that is, the two-way locking connection of the 10 plate units is realized.

Referring to Fig. 64, there is shown a thirteenth embodiment of the panel unit 10 of the present invention for the panel locking panel. As shown in FIG. 64 , in the thirteenth embodiment, the side 13 of the plate unit 10 is provided with a first tenon 21 with a wider depth and a second tongue groove 32 with a wider depth, and the side 14 is provided with a first tenon 21 with a wider depth. The tongue groove 22 and the second tenon 31 . Specifically, the side edge 13 is further formed with a first butting surface 131 connected to the corresponding edge of the upper surface 11 , and the first tenon 21 is formed below the first butting surface 131 , and the first tenon 21 extends from the first butting surface. 131 protrudes to the outside; a second tongue groove 32 recessed inward is formed below the first tenon 21, and a first vertical surface 132 connected to the corresponding edge of the bottom surface 12 is formed below the second tongue groove 32, The first vertical surface 132 and the first abutting surface 131 are both arranged vertically. The groove bottom of the second tongue groove 32 is concave inward from the first vertical surface 132 , and an abutting surface 41 is formed between the first tenon 21 and the second tongue groove 32 . A second abutting surface 141 is also formed on the side edge 14 to connect with the corresponding edge of the upper surface 11 . The first tongue groove 22 is formed below the second abutting surface 141 , and the groove bottom of the first tongue groove 22 extends from the second abutting surface. 141 is concave inward; a second vertical surface 142 connected to the edge corresponding to the bottom surface 12 is also formed below the first tongue groove 22 , and the second vertical surface 142 and the second abutting surface 141 are arranged vertically. The head of the second tenon 31 protrudes outward from the second vertical surface 142 , and a limiting surface 42 is formed between the first tenon groove 22 and the second tenon 31 .

The wider depth first tenon 21 includes a first top surface 211 , a first outer side surface 212 and a first bottom surface 213 , wherein a first inclined surface 214 is provided at the connection between the first top surface 211 and the first outer side surface 212 . A bottom surface 213 is connected with the first outer side surface 212 and the abutting surface 41 . The first bottom surface 213 includes a first inclined top surface 2131, a second inclined top surface 2132 and a first connecting plane 2133. The first inclined top surface 2131 is connected to the first outer side surface 212 and the first connecting plane 2133. The second inclined top surface The surface 2132 is connected with the first connection plane 2133 and the abutting surface 41, wherein the height of the end of the first inclined top surface 2131 connected with the first outer side surface 212 is lower than the height of the connection between the first inclined top surface 2131 and the first connection plane 2133. A second embossment 216 protruding downward is formed at the connection between the first inclined top surface 2131 and the first outer side surface 212 . The height of the end of the second inclined top surface 2132 connected to the first connection plane 2133 is higher than the height of the end of the second inclined top surface 2132 connected to the abutment surface 41 , so that the second inclined top surface 2132 is connected to the abutment surface 41 . 41 is formed with a downwardly protruding first relief 215, and the first connecting plane 2133 is a flat surface. Correspondingly, the wider depth first tongue groove 22 includes a first upper groove wall 221 , a first inner groove wall 222 and a first lower groove wall 223 , the first lower groove wall 223 and the first inner groove wall 222 and the limiter face 42 is connected. The first lower groove wall 223 includes a first inclined surface 2231, a second inclined surface 2232 and a second connecting plane 2233. The first inclined surface 2231 is connected to the first inner groove wall 222 and the second connecting plane 2233. The second leaning surface 2232 is connected with the second connecting plane 2233 and the limiting surface 42 , wherein the height of the end of the first leaning surface 2231 connecting with the first inner groove wall 222 is lower than that of the first leaning surface 2231 and the second A second locking groove 226 recessed downward is formed at the connection between the first inclined surface 2231 and the first inner groove wall 222 due to the height of the end connected by the connecting plane 2233 . The height of the end of the second inclined surface 2232 connected to the second connecting plane 2233 is higher than the height of the end of the second inclined surface 2232 connected to the limiting surface 42, so that the second inclined surface 2232 is connected to the limiting surface. A first locking groove 225 recessed downward is formed at the connection of 42 . The first locking groove 225 is used for accommodating the first embossing protrusion 215 , and the second locking groove 226 is used for accommodating the second embossing protrusion 216 .

A double relief structure of a first relief 215 and a second relief 216 is formed on the first bottom surface 213 of the first tenon 21 to increase the clamping force of the first tenon groove 22 and improve the level of the board unit 10 Buckling tension can effectively reduce or avoid the horizontal separation between the lock tenon and the lock groove of the plate unit. As shown in Figures 64, 65 and 68, after the two plate units 10 are assembled, the first tenon 21 is accommodated in the first tenon groove 22, the first relief 215 is accommodated in the first locking groove 225, The second embossment 216 is accommodated in the second locking groove 226, and the second tenon groove 32 is snapped on the second tenon 31; the first top surface 211 is in contact with the first upper groove wall 221, and the first inclined top The surface 2131 is in contact with the first inclined surface 2231, the first connecting surface 2133 is in contact with the second connecting surface 2233, the top surface 41 is in contact with the limiting surface 42, and the second bottom surface 313 is in contact with the second lower groove wall 323. In this way, when the two plate units 10 are separated from each other by the force in the F2 direction, the first inclined top surface 2131 and the first inclined leaning surface 2231 are clamped, and the first top surface 211 and the first upper groove wall 221 By clamping each other, the head of the first tenon 21 is clamped by the first upper groove wall 221 and the first inclined surface 2231, so that the head of the first tenon 21 with a wider depth is difficult to spread the first tenon 21. The grooves on the upper groove wall 221 and the first inclined surface 2231 can improve the horizontal buckling force. Further, the abutting surface 41 is clamped with the limiting surface 42 , the abutting surface 41 is about to disengage obliquely and pushes the limiting surface 42 so that the second tenon 31 is linked and deformed downward, and the first tenon groove 22 is about to be disengaged. At this time, the second lower groove wall 323 is pressed against the second bottom surface 313 to limit the deformation of the second tenon 31, so that the first tenon groove 22 cannot be opened, and the first tenon 21 is stable. is clamped in the first tongue groove 22 . The double-relief structure is provided to match the position limit of the second tenon 31 and the second tenon groove 32 with a wider depth, which increases the clamping force of the first tenon groove 22 for clamping the first tenon 21, and greatly improves the The horizontal buckling tension between the two board units 10 ensures the connection and buckling stability of the two board units 10 , so that the two board units 10 are flatly spliced, neither seamed nor separated.

As shown in FIG. 64 , a first inclined guide surface 1321 is provided at the connection between the first vertical surface 132 and the second lower groove wall 323 , and the end of the first inclined guide surface 1321 connected to the first vertical surface 132 is opposite to each other. The end portion where the first inclined guide surface 1321 is connected with the second lower groove wall 323 is disposed closer to the outside. Correspondingly, a second inclined guide surface 3121 is provided on the second outer side surface 312 of the second tenon 31 with a wider depth, the second inclined guide surface 3121 is connected with the second bottom surface 313 , and the second inclined guide surface 3121 is connected with the first The ends where the two bottom surfaces 313 are connected are disposed closer to the inner side. The first inclined guide surface 1321 and the second inclined guide surface 3121 play the role of positioning and guiding, which can facilitate the smooth assembly between the plate units. 10 During the assembly process, the first inclined guide surface 1321 abuts against the second inclined guide surface 3121 on the second tenon 31 to play the role of contact and positioning, and then under the action of the assembly force, the first inclined guide surface 1321 It will move downward along the second inclined guide surface 3121, and then open the second tongue groove 32 with a wider depth, so that the second tongue groove 32 can be smoothly buckled on the second tenon 31 with a wider depth. It can avoid the situation that the first vertical surface 132 and the second tenon 31 abut against each other when the plate unit is assembled, resulting in inability to install or unsmooth installation.

As shown in FIG. 66, in the thirteenth embodiment, the plate unit 10 also has the technical points of L1<L2, L1>L3, L4<L5, and L7>L8. The functions and effects of these technical points are the same as those of the first embodiment.

66 to 68 , it is shown that the two plate units 10 of the thirteenth embodiment are fastened by translation and pressing. As shown in FIG. 69 and FIG. 70 , it is shown that the two plate units 10 of the thirteenth embodiment are fastened by rotating and pressing down.

Referring to FIG. 71, there is shown a fourteenth embodiment of the panel unit 10 for the recessed latch panel of the present invention. As shown in FIG. 71 , the difference between the fourteenth embodiment and the thirteenth embodiment is that a first protruding strip 61 is provided below the second tenon 31 , and a first container is provided below the second tenon 32 . The groove 62. The specific structures of the first protruding strips 61 and the second accommodating grooves 62 in the fourteenth embodiment are the same as the specific structures of the first protruding strips 61 and the second accommodating grooves 62 in the ninth embodiment. Refer to the structural description of the ninth embodiment, which is not repeated here. In addition, the second outer side surface 312 of the second tenon 31 and the second inner groove wall 322 of the second tongue groove 32 are both circular arc surfaces.

As shown in FIG. 73, in the fourteenth embodiment, the plate unit 10 also has the technical points of L1<L2, L1>L3, L4<L5, and L7>L8. The functions and effects of these technical points are the same as those of the first embodiment.

73 to 75 , it is shown that the two plate units 10 of the fourteenth embodiment are fastened by translation and pressing. As shown in FIG. 76 and FIG. 77 , it is shown that the two plate units 10 of the fourteenth embodiment are fastened by rotating and pressing down.

Referring to Fig. 78, there is shown a fifteenth embodiment of the panel unit 10 for the recessed locking panel of the present invention. As shown in FIG. 78 , the fifteenth embodiment is based on the fourteenth embodiment and adds a design of a mounting groove 224 , the mounting groove 224 is opened on the first lower groove wall 223 of the first tongue groove 22 , The installation groove 224 is recessed downward from the first lower groove wall 223 toward the bottom surface 12 , and the installation groove 224 is used for accommodating the installation nails for fixing the plate unit 10 . When assembling the panel unit 10, first fix the panel unit 10 on the left side, that is, use the mounting nails to fix the panel unit 10 on the installation foundation (generally referring to the ground, wall, wood, metal groove, plastic slatted keel, etc.) Above, the mounting nails are driven into the board unit 10 from the mounting groove 224 and into the mounting base, the head of the mounting nails is placed in the mounting groove 224, and the mounting nails will not interfere with the first tenon when the board unit 10 is assembled The fit between 21 and the first tongue and groove 22 .

Referring to Fig. 79, there is shown a sixteenth embodiment of the panel unit 10 for the recessed locking panel of the present invention. As shown in FIG. 79 and FIG. 80 , in the sixteenth embodiment, the side edge 13 of the plate unit 10 is formed with a first abutting surface 131 connected with the corresponding edge of the upper surface 11 , and the first abutting surface 131 is arranged vertically ; The first tenon 21 is formed below the first butt surface 131, and the first tenon 21 protrudes from the first butt surface 131 to the outside; the bottom of the first tenon 21 is also formed with a second tenon groove 32, A first vertical surface 132 connected to the corresponding edge of the bottom surface 12 is formed below the second tongue groove 32 . The second tongue groove 32 is concave from the first vertical surface 132 toward the upper surface 11 ; the first tenon 21 Abutting surface 41 is formed between it and the second tongue groove 32; the side 14 is formed with a second abutting surface 141 connected with the corresponding edge of the upper surface, and the second abutting surface 141 is arranged vertically; the first tongue groove 22 Formed below the second butting surface 141 , the groove bottom of the first tenon groove 22 is concave inward from the second butting surface 141 ; a second tenon 31 protruding upward is also formed below the first tenon groove 22 . A second vertical surface 142 connected to the corresponding edge of the bottom surface 12 is formed below the second tenon 31 , a limiting surface 42 is formed between the first tenon groove 22 and the second tenon 31 , the first The bottom surface 213 and the abutting surface 41 are connected to form a downwardly protruding first relief 215 ; the first lower groove wall 223 of the first tongue groove 22 and the limiting surface 42 are connected to form a downwardly concave first locking groove 225 . The connection between the second tongue groove 32 and the first vertical surface 132 is provided with a third tongue groove 72 concave inwardly, the third tongue groove 72 is recessed inward from the first vertical surface 132 , and the second tenon 31 The connection with the second vertical surface 142 is provided with a third tenon 71 protruding to the outside, and the third tenon 71 protrudes from the second vertical surface 142 to the outside; The two adjacent plate units 10 can be buckled by the mutual cooperation of the first tenon 21 and the first tenon groove 22 , the second tenon 31 and the second tenon groove 32 and the third tenon 71 and the third tenon groove 72 . combined connection.

The structures of the first embossing protrusions 215 and the first locking grooves 225 in the sixteenth embodiment are the same as those of the first embossing protrusions and the first locking grooves 225 in the seventh embodiment. For details, please refer to the structure of the seventh embodiment describe.

Preferably, the lowest point of the first relief 215 is higher than the connection between the second inner groove wall 322 of the second tongue groove 32 and the third upper groove wall 723 of the third tongue groove 72; The height of the connection point of the lower groove wall 223 is higher than and equal to the second top surface 311 of the second tenon 31; the second inner groove wall 322 and the first vertical surface 132 are located in the same vertical plane or the second inner groove wall 322 is closer to the outer side of the side edge 13 than the first vertical surface 132 . Therefore, as shown in FIGS. 81 and 82 , the plate unit 10 of the sixteenth embodiment can be processed without the inclined knife, and only the horizontal knife 151 and the vertical knife 152 can be processed and formed.

Referring to FIG. 83, there is shown a seventeenth embodiment of the panel unit 10 of the present invention for panel locking panels. As shown in FIG. 83 , the difference between the seventeenth embodiment and the eighth embodiment is that, in the seventeenth embodiment, one side edge 13 of the plate unit 10 is formed with a first edge connected to the corresponding edge of the upper surface 11 . The opposing veneer 133 and the first pressing surface 134 vertically connected to the first pair of veneers 133 are disposed toward the inner side of the plate unit 10 , and the first pressing surface 134 is attached from the first pair of veneers 133 . The surface 133 extends inwardly, a first butting surface 131 is formed below the first pressing surface 134 , the first pressing surface 134 is vertically connected with the first butting surface 131 , and the first abutting surface 131 is opposite to the first pair of The veneer surface 133 is disposed closer to the inner side of the plate unit 10 , so that the first pressing surface 134 and the first abutting surface 131 enclose the inserting groove 135 . Correspondingly, a second pair of veneers 143 connected with the corresponding edges of the upper surface 11 and a second pressing surface 144 connected with the second pair of veneers 143 are formed on one side 14 of the plate unit 10 . The opposite veneer 143 is disposed correspondingly to the first pair of veneers 133 , the second pressing surface 144 extends toward the outside of the plate unit 10 , and the second pressing surface 144 extends outward from the second pair of veneers 143 , A second abutting surface 141 is formed below the second pressing surface 144 , and the second abutting surface 141 and the second pressing surface 144 are connected to form a snap protrusion 145 that fits with the inserting groove 135 . After the two adjacent plate units 10 are assembled together, as shown in FIG. 83 , the first pair of veneers 133 are attached to the second pair of veneers 143 , and the first pressing surface 134 is pressed on the second pressing surface 144 , the first abutting surface 131 and the second abutting surface 141 are disposed opposite to each other with a gap therebetween, and the latching protrusion 145 is placed in the inserting groove 135 .

The first convex step 51 , the first groove 52 , the first tenon 21 , the first tenon groove 22 , the second tenon groove 32 and the second tenon 31 provided under the first butt joint surface 131 and the second butt joint surface 141 , The structures of the first relief 215 and the first locking groove 225 are the same as the corresponding structures in the eighth embodiment. For details, please refer to the description of the eighth embodiment, which will not be repeated here. The structures of the third tongue groove 72 and the third tenon 71 are the same as the corresponding structures in the third embodiment. For details, please refer to the description of the third embodiment, which will not be repeated here.

As shown in FIG. 85 to FIG. 87 , the two plate units 10 of the seventeenth embodiment are fastened by translation and pressing. As shown in FIG. 88 and FIG. 89 , it is shown that the two plate units 10 of the seventeenth embodiment are fastened by rotating and pressing down. Referring to FIG. 87 , after the two plate units 10 are assembled, the first top surface 211 of the first tenon 21 abuts against the first upper groove wall 221 of the first tenon groove 22 , and the first outer side 212 is in contact with the first top surface 211 of the first tenon 21 . A gap is left between the inner groove walls 222, and a gap is left between the first bottom surface 213 and the first lower groove wall 223; as shown in FIG. 87, the third top surface 713 of the third tenon 71 and the third tenon groove There is a gap between the third upper groove wall 723 of 72 , a gap is left between the third outer side surface 711 and the third inner groove wall 721 , and the third bottom surface 712 and the third lower groove wall 722 abut.

Referring to FIG. 90, there is shown an eighteenth embodiment of the panel unit 10 of the present invention for the panel locking panel. As shown in FIGS. 90 and 91 , the difference between the eighteenth embodiment and the seventeenth embodiment is that the shapes of the first relief 215 and the first locking groove 225 are different, the second tenon 31 and the second tenon groove are different 32 is different in shape, a first protruding strip 61 is provided below the second tenon 31 , and a first accommodating groove 62 is provided below the second tenon 32 . The specific structures of the first embossing protrusion 215 and the first locking groove 225 are the same as those of the first embossing protrusion and the first locking groove in the seventh embodiment. For details, reference may be made to the description of the seventh embodiment, which will not be repeated here. The specific structures of the second tongue groove 32 , the second tenon 31 , the first accommodating groove 62 and the first protruding strip 61 are the same as the corresponding structures in the ninth embodiment. For details, please refer to the description of the ninth embodiment. Repeat.

As shown in FIG. 92 to FIG. 94 , the two plate units 10 of the eighteenth embodiment are fastened by translation and pressing. As shown in FIG. 95 and FIG. 96 , it is shown that the two plate units 10 of the eighteenth embodiment are fastened by rotating and pressing down.

In another preferred embodiment, a modification of the eighteenth embodiment: the first embossing protrusion 215 and the first locking groove 225 are removed.

Referring to FIG. 97 , it shows the structure in which the panel units of the present invention are assembled and arranged to form the first parquet style, which is commonly known as herringbone parquet or V-shaped parquet. In conjunction with FIG. 97 , the panel unit 10 of the present invention has a pair of Long side and a pair of short sides, one long side and one short side are provided with the first tenon 21 and the second tenon groove 32 (that is, the structure is the same as the above-mentioned side 13), the other long side and the other short side The side is provided with a first tenon 22 and a second tenon 31 (that is, the structure is the same as the above-mentioned side 14). Therefore, when the panel units are assembled and arranged to form a herringbone mosaic, the length of the first panel unit 10 The side and the short side of the second plate unit 10 are assembled and connected, and then the third plate unit 10 is placed at the angle between the first plate unit 10 and the second plate unit 10, so that the third plate unit 10 The first tenon 21 on the long side is placed above the first tenon 22 on the long side of the first plate unit 10 . At this time, the second tenon 32 on the long side of the third plate unit 10 will synchronize the cover Buckle on the second tenon 31 on the long side of the first board unit 10; let the first tenon 21 on the short side of the third board unit 10 be placed on the first tenon 21 on the long side of the second board unit 10 Above the tenon groove 22, the second tenon groove 32 on the short side of the third plate unit 10 will simultaneously cover the second tenon 31 on the long side of the second plate unit 10. After the long sides and short sides of the three plate units 10 and the long sides corresponding to the angle between the first plate unit 10 and the second plate unit 10 are attached to the assembled position, force is applied in a pressing manner to make the corresponding The first tenon 21, the second tenon groove 32 and the first tenon groove 22 and the second tenon 31 complete the assembly and realize the snap-fit of the herringbone mosaic, without the need to tilt the plate unit upside down for assembly, so it can be assembled with appropriate The length and width ratios are arranged and assembled into various forms. Referring to Fig. 98, it shows that the plate units are assembled and arranged to form a second pattern of parquet. In combination with Fig. 98, the second pattern of parquet selects four strip plates and a square plate of the same size, and the surface size of the square plate is One-half of the surface length of the strip-shaped plates, the opposite sides of the plates are provided with a first tenon 21, a first tenon 22, a second tenon 32 and a second tenon 31. When assembling the parquet, assemble and connect the short side of the first strip board and the long side of the second strip board in an edge-aligned manner, at the angle between the first strip board and the second strip board Place the square plate so that the two adjacent sides of the square plate are assembled and positioned with the long side at the angle between the first strip plate and the second strip plate, and then apply force by pressing to make the square plate and the first strip plate The strip-shaped board and the second strip-shaped board are assembled, and then the third strip-shaped board and the fourth strip-shaped board are assembled, thereby forming a two-way lock and parquet installation of the square floor.

The present invention also provides a method for buckling the embedded locking plate, and the buckling method is described below. A method for buckling an embedded lock plate of the present invention includes the following steps:

As shown in FIG. 1 , a plurality of board units 10 are provided, and the provided board unit 10 has an upper surface 11 , a bottom surface 12 and four sides, wherein at least two

opposite sides

13 and 14 are respectively formed with matching the first tenon 21 and the first tenon groove 22;

A first butting surface 131 connected to the corresponding edge of the upper surface 11 is formed on the side 13 with the first tenon 21 , the first butting surface 131 is arranged vertically, and the first tenon 21 is formed on the first butting surface 131, and the first tenon 21 protrudes outward from the first butt surface 131, the first tenon 21 has a first top surface 211, a first outer side surface 212 and a first bottom surface 213;

A second tongue groove 32 recessed inward is formed below the first tenon 21 , a first vertical surface 132 connected to the corresponding edge of the bottom surface 12 is formed below the second tongue groove 32 , and the second tongue groove 32 The bottom of the groove is concave inward from the first vertical surface 132, and the second tongue groove 32 has a second upper groove wall 321, a second inner groove wall 322 and a second lower groove wall 323;

A resting surface 41 is formed between the second upper groove wall 321 and the first bottom surface 213;

A second abutting surface 141 is formed on the other side 14 with the first tongue groove 22 and connected to the corresponding edge of the upper surface 11 . The second abutting surface 141 is arranged vertically, and the first tongue groove 22 is formed on the first Below the two abutting surfaces 141 , the groove bottom of the first tongue groove 22 is recessed inward from the second abutting surface 141 , and the first tongue groove 22 has a first upper groove wall 221 , a first inner groove wall 222 and a first lower groove wall 223;

A second tenon 31 protruding to the outside is formed below the first tenon groove 22 , a second vertical surface 142 connected to the edge corresponding to the bottom surface 12 is formed below the second tenon 31 , and the second tenon 31 The head protrudes outward from the second vertical surface 142, and the second tenon 31 has a second top surface 311, a second outer side surface 312 and a second bottom surface 313;

A limiting surface 42 is formed between the second top surface 311 and the first lower groove wall 223;

A first convex step 51 protruding outward is formed between the first top surface 211 of the first tenon 21 and the first butting surface 131 , and the first convex step 51 protrudes outward from the first butting surface 131 ;

A first groove 52 concave inward is formed between the first upper groove wall 221 of the first tongue groove 22 and the second abutting surface 141, and the first groove 52 is concave inward from the second abutting surface 141; And the first groove 52 is matched with the first convex step 51, and the first groove 52 can accommodate the first convex step 51;

The sheet unit 10 with the first tenon 21 is moved in the same plane to the other sheet unit 10 with the first tenon 22, the first tenon 21 begins to enter the first tenon 22, the second tenon 32 begins The cover is fastened to the second tenon 31, so that the first outer side surface 212 of the first tenon 21 abuts against the wall surface corresponding to the first groove 52, and the side surface corresponding to the first convex step 51 abuts against the second abutting surface 141. Let the abutting surface 41 abut on the limiting surface 42, and then apply force to the edge of the plate unit 10 with the first tenon 21 in a pressing manner, that is, press the upper surface 11 vertically above the abutting surface 41 with a vertical pressure. The first tenon 21 enters the first tenon groove 22, the first convex step 51 enters the first groove 52, and the second tenon groove 32 is fastened to the second convex On the tenon 31, the two-way locking connection between the plate units 10 is realized.

Another method for buckling an embedded lock plate of the present invention includes the following steps:

opposite sides

Move the board unit 10 with the first tenon 21 to the other board unit 10 with the first tenon 22 in an inclined state; insert the first tenon 21 into the first tenon 22, and the second tenon 22 32 part of the cover is buckled on the second tenon 31, so that the first butt surface 131 and the second butt surface 141 abut against, and then the plate unit 10 with the first tenon 21 is rotated and pressed down, so that the first tenon 21 Entering into the first tenon 22 , the first convex step 51 entering the first groove 52 , and the second tenon 32 snapping on the second tenon 31 , the two-way locking connection between the plate units 10 is realized.

The present invention has been described in detail above with reference to the embodiments of the accompanying drawings, and those skilled in the art can make various modifications to the present invention according to the above description. Therefore, some details in the embodiments should not be construed to limit the present invention, and the present invention will take the scope defined by the appended claims as the protection scope of the present invention.

Claims

An in-line locking plate, assembled from a plate unit (10), the plate unit (10) has an upper surface (11), a bottom surface (12) and four sides, wherein at least two opposite sides A first tenon (21) and a first tenon (22) are respectively formed on the sides (13, 14); it is characterized in that,

The side edge (13) with the first tenon (21) is formed with a first abutting surface (131) connected with the corresponding edge of the upper surface (11), and the first abutting surface (131) is vertical direction setting;

The first tenon (21) is formed below the first butt surface (131), and the first tenon (21) protrudes outward from the first butt surface (131); the The first tenon (21) has a first top surface (211), a first outer surface (212) and a first bottom surface (213);

A second tongue groove (32) concave inward is also formed below the first tenon (21), and an edge corresponding to the bottom surface (12) is formed below the second tongue groove (32) the connected first vertical surface (132), the groove bottom of the second tongue groove (32) is concave inward from the first vertical surface (132);

An abutting surface (41) is formed between the first tenon (21) and the second tenon (32);

The other side edge (14) with the first tongue groove (22) is formed with a second abutting surface (141) connected with the corresponding edge of the upper surface (11), and the second abutting surface (141) is in the form of a second abutting surface (141). vertical setting;

The first tongue groove (22) is formed below the second butt surface (141), and the groove bottom of the first tongue groove (22) is concave inward from the second butt surface (141) ; the first tongue groove (22) has a first upper groove wall (221), a first inner groove wall (222) and a first lower groove wall (223);

A second tenon (31) protruding to the outside is further formed below the first tenon groove (22), and an edge corresponding to the bottom surface (12) is formed below the second tenon (31). the connected second vertical surface (142), the head of the second tenon (31) protrudes outward from the second vertical surface (142);

A limiting surface (42) is formed between the first tenon (22) and the second tenon (31);

A first convex step (51) protruding to the outside is formed between the first top surface (211) of the first tenon (21) and the first abutting surface (131), and the first convex The step (51) protrudes outward from the first abutting surface (131);

A first groove (52) concave inward is formed between the first upper groove wall (221) of the first tongue groove (22) and the second abutting surface (141). The groove (52) is concave inward from the second abutting surface (141);

The first groove (52) is adapted to the first convex step (51), and the first groove (52) can accommodate the first convex step (51);

Thereby, the two adjacent plate units (10) can pass through the first tenon (21) and the first tenon groove (22), the first convex step (51) and the first groove (52) and the second convex The tenon (31) and the second tenon groove (32) cooperate with each other to perform snap connection.
The anti-embedded locking plate according to claim 1, wherein the first bottom surface (213) comprises a first inclined top surface (2131) and a second inclined top surface (2132), and the first inclined top surface (2132). The top surface (2131) is connected with the first outer side surface (212) and the second inclined top surface (2132);

The height of the end of the first sloping top surface (2131) connected with the first outer side surface (212) is lower than that of the first sloping top surface (2131) connecting with the second sloping top surface (2132) The height of the end of the first inclined top surface (2131) and the first outer side surface (212) is formed with a downwardly protruding second relief (216);

The height of the end of the second inclined top surface (2132) connected with the first inclined top surface (2131) is higher than that of the second inclined top surface (2132) connected with the abutting surface (41). The height of the end portion, a first relief (215) protruding downward is formed at the connection between the second inclined top surface (2132) and the abutting surface (41);

The first lower groove wall (223) includes a first bevel surface (2231) and a second bevel surface (2232), the first bevel surface (2231) and the first inner groove wall (222) connected with the second inclined surface (2232);

The height of the end portion where the first inclined surface (2231) is connected to the first inner groove wall (222) is lower than that of the first inclined surface (2231) and the second inclined surface (2232) The height of the connected end, a second locking groove (226) recessed downward is formed at the connection between the first inclined surface (2231) and the first inner groove wall (222). The locking groove (226) can accommodate the second relief (216);

The height of the end of the second inclined resting surface (2232) connected with the first inclined resting surface (2231) is higher than that of the second inclined resting surface (2232) connected with the limiting surface (42). The height of the end portion, a downwardly concave first locking groove (225) is formed at the connection between the second inclined surface (2232) and the limiting surface (42), and the first locking groove (225) ) can accommodate the first relief (215).
The counter-integrated locking plate according to claim 1, wherein the second tongue groove (32) has a second upper groove wall (321), a second inner groove wall (322) and a second lower groove wall(323);

The second tenon (31) has a second top surface (311), a second outer surface (312) and a second bottom surface (313);

A first inclined guide surface (1321) is provided at the connection between the first vertical surface (132) and the second lower groove wall (323), and the first inclined guide surface (1321) is connected to the first inclined guide surface (1321). The end connected with the vertical surface (132) is arranged closer to the outer side of the plate unit (10) than the end connected with the first inclined guide surface (1321) and the second lower groove wall (323);

A second inclined guide surface (3121) is provided at the connection between the second outer side surface (312) and the second bottom surface (313), and the second inclined guide surface (3121) is connected to the second bottom surface (313). ) connected end is disposed closer to the inner side of the plate unit (10) than the end connected with the second inclined guide surface (3121) and the second outer side surface (312).
The counter-embedded locking plate according to claim 1, wherein,

The second tongue groove (32) has a second upper groove wall (321), a second inner groove wall (322) and a second lower groove wall (323);

The second tenon (31) has a second top surface (311), a second outer surface (312) and a second bottom surface (313);

The elevation of the first bottom surface (213) is lower than the elevation of the second upper groove wall (321);

The elevation of the second top surface (311) is higher than the elevation of the first lower groove wall (223).
The anti-recessed locking plate according to claim 1, characterized in that, the first lower groove wall (223) is provided with a downwardly concave installation groove (224).
The anti-embedded locking plate according to claim 1, characterized in that, a first inclined surface (214) is provided at the connection between the first top surface (211) and the first outer side surface (212).
The counter-insert locking plate according to claim 1, wherein the first convex step (51) comprises a first transverse surface (511) and a first longitudinal surface (512), and the first transverse surface A first oblique surface (513) is provided at the connection between (511) and the first longitudinal surface (512).
The counter-inserted locking plate according to claim 1, characterized in that, a downwardly protruding first relief is provided at the connection between the first tenon (21) and the abutting surface (41). (215);

A first locking groove (225) recessed downward is provided at the connection between the first tongue groove (22) and the limiting surface (42).
The counter-embedded locking plate according to claim 1, wherein,

The second tongue groove (32) has a second upper groove wall (321), a second inner groove wall (322) and a second lower groove wall (323);

The second tenon (31) has a second top surface (311), a second outer surface (312) and a second bottom surface (313);

The connection between the second outer side surface (312) of the second tenon (31) and the second bottom surface (313) and the limit surface (42) and the second top surface ( The distance (L7) between the connections of 311) is greater than the minimum distance between the connection between the second lower groove wall (323) of the second tongue groove (32) and the first vertical surface (132) and the abutting surface (41) (L8).
The counter-insert locking plate according to claim 1, wherein a third protrusion protruding outward is formed between the second tongue groove (32) and the first vertical surface (132). a tenon (71), the third tenon (71) protrudes outward from the first vertical surface (132);

A third tongue groove (72) concave inward is formed between the second tenon (31) and the second vertical surface (142). Two vertical surfaces (142) are concave inward;

The third tenon (72) is matched with the third tenon (71), and the third tenon (72) can accommodate the third tenon (71).
The counter-insert locking plate according to claim 1, characterized in that a third tenon concave inward is formed between the second tenon groove (32) and the first vertical surface (132). a groove (72), the third tongue groove (72) is concave inward from the first vertical surface (132);

A third tenon (71) protruding to the outside is formed between the second tenon (31) and the second vertical surface (142). Two vertical surfaces (142) protrude outwards;

The third tenon (72) is matched with the third tenon (71), and the third tenon (72) can accommodate the third tenon (71).
The counter-integrated locking plate according to claim 1, wherein the second tongue groove (32) has a second upper groove wall (321), a second inner groove wall (322) and a second lower groove wall(323);

The second tenon (31) has a second top surface (311), a second outer surface (312) and a second bottom surface (313);

A first convex strip (61) protruding outward is formed between the second bottom surface (313) of the second tenon (31) and the second vertical surface (142), and the first convex The strip (61) protrudes outward from the second vertical surface (142);

A first accommodating groove (62) concave inward is formed between the second lower groove wall (323) of the second tongue groove (32) and the first vertical surface (132). The groove (62) is concave inward from the first vertical surface (132);

The first accommodating groove (62) is adapted to the first protruding strip (61), and the first accommodating groove (62) can accommodate the first protruding strip (61).
The counter-inserted locking plate according to claim 12, wherein the first bottom surface (213) comprises a first inclined top surface (2131) and a second inclined top surface (2132), the first inclined top surface (2132) The top surface (2131) is connected with the first outer side surface (212) and the second inclined top surface (2132);

The height of the end of the first sloping top surface (2131) connected with the first outer side surface (212) is lower than that of the first sloping top surface (2131) connecting with the second sloping top surface (2132) The height of the end of the first inclined top surface (2131) and the first outer side surface (212) is formed with a downwardly protruding second relief (216);

The height of the end of the second inclined top surface (2132) connected with the first inclined top surface (2131) is higher than that of the second inclined top surface (2132) connected with the abutting surface (41). The height of the end portion, a first relief (215) protruding downward is formed at the connection between the second inclined top surface (2132) and the abutting surface (41);

The first lower groove wall (223) includes a first bevel surface (2231) and a second bevel surface (2232), the first bevel surface (2231) and the first inner groove wall (222) connected with the second inclined surface (2232);

The height of the end portion where the first inclined surface (2231) is connected to the first inner groove wall (222) is lower than that of the first inclined surface (2231) and the second inclined surface (2232) The height of the connected end, a second locking groove (226) recessed downward is formed at the connection between the first inclined surface (2231) and the first inner groove wall (222). The locking groove (226) can accommodate the second relief (216);

The height of the end of the second inclined resting surface (2232) connected with the first inclined resting surface (2231) is higher than that of the second inclined resting surface (2232) connected with the limiting surface (42). The height of the end portion, a downwardly concave first locking groove (225) is formed at the connection between the second inclined surface (2232) and the limiting surface (42), and the first locking groove (225) ) can accommodate the first relief (215).
The anti-embedded locking plate according to claim 12, wherein,

A first inclined guide surface (1321) is provided at the connection between the first vertical surface (132) and the second lower groove wall (323), and the first inclined guide surface (1321) is connected to the first inclined guide surface (1321). The end connected with the vertical surface (132) is arranged closer to the outer side of the plate unit (10) than the end connected with the first inclined guide surface (1321) and the second lower groove wall (323);

A second inclined guide surface (3121) is provided at the connection between the second outer side surface (312) and the second bottom surface (313), and the second inclined guide surface (3121) is connected to the second bottom surface (313). ) connected end is disposed closer to the inner side of the plate unit (10) than the end connected with the second inclined guide surface (3121) and the second outer side surface (312).
The anti-embedded locking plate according to claim 12, wherein,

The first bottom surface (213) includes a first oblique subsurface (2134), a second oblique subsurface (2135) and a first flat subsurface (2136), and the first oblique subsurface (2134) and the second oblique facet (2135) is an inclined face, and the height of the end of the first inclined facet (2134) connected to the first outer side (212) is lower than the first the height of the end where the oblique facet (2134) is connected to the second oblique facet (2135);

The second oblique facet (2135), the first flat facet (2136) and the abutting face (41) are connected to form a downwardly protruding first relief (215);

The first lower groove wall (223) includes a third inclined facet (2234), a fourth inclined facet (2235) and a second flat facet (2236). The third inclined facet (2236) 2234) and the fourth oblique facet (2235) are both inclined faces, and the height of the end where the third inclined facet (2234) is connected to the first inner groove wall (222) is lower than the height of the end where the third oblique facet (2234) is connected to the fourth oblique facet (2235);

The fourth oblique facet (2235), the second flat facet (2236) and the limiting face (42) are connected to form a downwardly concave first locking groove (225).
The anti-recessed locking plate according to claim 12, characterized in that, the first lower groove wall (223) is provided with a downwardly concave installation groove (224).
The counter-inserted locking plate according to claim 12, characterized in that, a first inclined surface (214) is provided at the connection between the first top surface (211) and the first outer side surface (212).
The anti-recessed locking plate according to claim 12, wherein the first convex step (51) comprises a first transverse surface (511) and a first longitudinal surface (512), and the first transverse surface A first oblique surface (513) is provided at the connection between (511) and the first longitudinal surface (512).
The counter-insert type locking plate according to claim 12, wherein the first protruding strip (61) comprises a first abutting surface (611) and a first pressing surface (612), the first A first guide surface (613) is provided at the connection between the abutting surface (611) and the first pressing surface (612), and the first guide surface (613) is an inclined surface.
The counter-insert locking plate according to claim 12, characterized in that the horizontal distance between the first outer side surface (212) of the first tenon (21) and the highest point of the abutting surface (41) (L11) is greater than or equal to three times the maximum horizontal distance (L4) between the first abutting surface (131) and the first outer side surface (212) of the first tenon (21).
The counter-embedded locking plate according to claim 1, wherein,

The second tongue groove (32) has a second upper groove wall (321), a second inner groove wall (322) and a second lower groove wall (323);

The second tenon (31) has a second top surface (311), a second outer surface (312) and a second bottom surface (313);

A second convex step (53) protruding to the outside is formed between the first convex step (51) and the first abutting surface (131), the second convex step (53) extending from the first convex step (53) The butting surface (131) protrudes outward;

A second groove (54) concave inward is formed between the first groove (52) and the second abutting surface (141), the second groove (54) extending from the second abutting surface (141) inwardly concave;

The second groove (52) is adapted to the second convex step (51), and the second groove (52) can accommodate the second convex step (51);

A first convex strip (61) protruding outward is formed between the second bottom surface (313) of the second tenon (31) and the second vertical surface (142), and the first convex The strip (61) protrudes outward from the second vertical surface (142);

A first accommodating groove (62) concave inward is formed between the second lower groove wall (323) of the second tongue groove (32) and the first vertical surface (132). The groove (62) is concave inward from the first vertical surface (132);

The first accommodating groove (62) is adapted to the first protruding strip (61), and the first accommodating groove (62) can accommodate the first protruding strip (61).
The counter-inserted locking plate according to claim 21, wherein the first bottom surface (213) comprises a first inclined top surface (2131) and a second inclined top surface (2132), the first inclined top surface (2132) The top surface (2131) is connected with the first outer side surface (212) and the second inclined top surface (2132);

The height of the end of the first sloping top surface (2131) connected with the first outer side surface (212) is lower than that of the first sloping top surface (2131) connecting with the second sloping top surface (2132) The height of the end of the first inclined top surface (2131) and the first outer side surface (212) is formed with a downwardly protruding second relief (216);

The height of the end of the second inclined top surface (2132) connected with the first inclined top surface (2131) is higher than that of the second inclined top surface (2132) connected with the abutting surface (41). The height of the end portion, a first relief (215) protruding downward is formed at the connection between the second inclined top surface (2132) and the abutting surface (41);

The first lower groove wall (223) includes a first bevel surface (2231) and a second bevel surface (2232), the first bevel surface (2231) and the first inner groove wall (222) connected with the second inclined surface (2232);

The height of the end portion where the first inclined surface (2231) is connected to the first inner groove wall (222) is lower than that of the first inclined surface (2231) and the second inclined surface (2232) The height of the connected end, a second locking groove (226) recessed downward is formed at the connection between the first inclined surface (2231) and the first inner groove wall (222). The locking groove (226) can accommodate the second relief (216);

The height of the end of the second inclined resting surface (2232) connected with the first inclined resting surface (2231) is higher than that of the second inclined resting surface (2232) connected with the limiting surface (42). The height of the end portion, a downwardly concave first locking groove (225) is formed at the connection between the second inclined surface (2232) and the limiting surface (42), and the first locking groove (225) ) can accommodate the first relief (215).
The counter-inserted locking plate according to claim 21, wherein,

A first inclined guide surface (1321) is provided at the connection between the first vertical surface (132) and the second lower groove wall (323), and the first inclined guide surface (1321) is connected to the first inclined guide surface (1321). The end connected with the vertical surface (132) is arranged closer to the outer side of the plate unit (10) than the end connected with the first inclined guide surface (1321) and the second lower groove wall (323);

A second inclined guide surface (3121) is provided at the connection between the second outer side surface (312) and the second bottom surface (313), and the second inclined guide surface (3121) is connected to the second bottom surface (313). ) connected end is disposed closer to the inner side of the plate unit (10) than the end connected with the second inclined guide surface (3121) and the second outer side surface (312).
The counter-inserted locking plate according to claim 21, wherein the first bottom surface (213) comprises a first oblique dividing surface (2134), a second oblique dividing surface (2135) and a first flat surface To facet (2136), the first inclined facet (2134) and the second inclined facet (2135) are inclined planes, and the first inclined facet (2134) and the first inclined facet (2134) The height of the end connected with an outer side surface (212) is lower than the height of the end connected with the first oblique sub-surface (2134) and the second oblique sub-surface (2135);

The second oblique facet (2135), the first flat facet (2136) and the abutting face (41) are connected to form a downwardly protruding first relief (215);

The first lower groove wall (223) includes a third inclined facet (2234), a fourth inclined facet (2235) and a second flat facet (2236). The third inclined facet (2236) 2234) and the fourth oblique facet (2235) are both inclined faces, and the height of the end where the third inclined facet (2234) is connected to the first inner groove wall (222) is lower than the height of the end where the third oblique facet (2234) is connected to the fourth oblique facet (2235);

The fourth oblique facet (2235), the second flat facet (2236) and the limiting face (42) are connected to form a downwardly concave first locking groove (225).
The anti-embedded locking plate according to claim 21, characterized in that, a first inclined surface (214) is provided at the connection between the first top surface (211) and the first outer side surface (212).
The counter-insert locking plate according to claim 21, wherein the first convex step (51) comprises a first transverse surface (511) and a first longitudinal surface (512), and the first transverse surface A first oblique surface (513) is provided at the connection between (511) and the first longitudinal surface (512).
The anti-recessed locking plate according to claim 21, wherein the second convex step (53) comprises a second transverse surface (531) and a second longitudinal surface (532), and the second transverse surface A second inclined surface (533) is provided at the connection between (531) and the second longitudinal surface (532).
The anti-insert type locking plate according to claim 21, wherein the first protruding strip (61) comprises a first abutting surface (611) and a first pressing surface (612), the first A first guide surface (613) is provided at the connection between the abutting surface (611) and the first pressing surface (612), and the first guide surface (613) is an inclined surface.
The counter-embedded locking plate according to claim 1, wherein,

The second tongue groove (32) has a second upper groove wall (321), a second inner groove wall (322) and a second lower groove wall (323);

The second tenon (31) has a second top surface (311), a second outer surface (312) and a second bottom surface (313);

A second convex step (53) protruding to the outside is formed between the first convex step (51) and the first abutting surface (131), the second convex step (53) extending from the first convex step (53) The butting surface (131) protrudes outward;

A second groove (54) concave inward is formed between the first groove (52) and the second abutting surface (141), the second groove (54) extending from the second groove (54) The butt surface (141) is concave inward;

The second groove (54) is adapted to the second convex step (53), and the second groove (54) can accommodate the second convex step (53);

A first protruding strip (61) and a second protruding strip (63) are formed between the second bottom surface (313) of the second tenon (31) and the second vertical surface (142) ), and both the first protruding strip (61) and the second protruding strip (63) protrude outward from the second vertical surface (142);

Between the second lower groove wall (323) of the second tongue groove (32) and the first vertical surface (132), a first accommodating groove (62) concave inward and the second accommodating groove (62) are formed. a groove (64), the first accommodating groove (62) and the second accommodating groove (64) are both concave inward from the first vertical surface (132);

The first accommodating groove (62) is adapted to the first protruding strip (61), and the first accommodating groove (62) can accommodate the first protruding strip (61); the second accommodating groove (62) The groove (64) is adapted to the second protruding strip (63), and the second accommodating groove (64) can accommodate the second protruding strip (63).
The counter-inserted locking plate according to claim 29, wherein the first bottom surface (213) comprises a first inclined top surface (2131) and a second inclined top surface (2132), the first inclined top surface (2132) The top surface (2131) is connected with the first outer side surface (212) and the second inclined top surface (2132);

The height of the end of the first sloping top surface (2131) connected with the first outer side surface (212) is lower than that of the first sloping top surface (2131) connecting with the second sloping top surface (2132) The height of the end of the first inclined top surface (2131) and the first outer side surface (212) is formed with a downwardly protruding second relief (216);

The height of the end of the second inclined top surface (2132) connected with the first inclined top surface (2131) is higher than that of the second inclined top surface (2132) connected with the abutting surface (41). The height of the end portion, a first relief (215) protruding downward is formed at the connection between the second inclined top surface (2132) and the abutting surface (41);

The first lower groove wall (223) includes a first bevel surface (2231) and a second bevel surface (2232), the first bevel surface (2231) and the first inner groove wall (222) connected with the second inclined surface (2232);

The height of the end portion where the first inclined surface (2231) is connected to the first inner groove wall (222) is lower than that of the first inclined surface (2231) and the second inclined surface (2232) The height of the connected end, a second locking groove (226) recessed downward is formed at the connection between the first inclined surface (2231) and the first inner groove wall (222). The locking groove (226) can accommodate the second relief (216);

The height of the end of the second inclined resting surface (2232) connected with the first inclined resting surface (2231) is higher than that of the second inclined resting surface (2232) connected with the limiting surface (42). The height of the end portion, a downwardly concave first locking groove (225) is formed at the connection between the second inclined surface (2232) and the limiting surface (42), and the first locking groove (225) ) can accommodate the first relief (215).
The counter-inserted locking plate according to claim 29, wherein,

A first inclined guide surface (1321) is provided at the connection between the first vertical surface (132) and the second lower groove wall (323), and the first inclined guide surface (1321) is connected to the first inclined guide surface (1321). The end connected with the vertical surface (132) is arranged closer to the outer side of the plate unit (10) than the end connected with the first inclined guide surface (1321) and the second lower groove wall (323);

A second inclined guide surface (3121) is provided at the connection between the second outer side surface (312) and the second bottom surface (313), and the second inclined guide surface (3121) is connected to the second bottom surface (313). ) connected end is disposed closer to the inner side of the plate unit (10) than the end connected with the second inclined guide surface (3121) and the second outer side surface (312).
The anti-insert locking plate according to claim 29, wherein the first bottom surface (213) comprises a first oblique dividing surface (2134), a second oblique dividing surface (2135) and a first flat surface To facet (2136), the first inclined facet (2134) and the second inclined facet (2135) are inclined planes, and the first inclined facet (2134) and the first inclined facet (2134) The height of the end connected with an outer side surface (212) is lower than the height of the end connected with the first oblique sub-surface (2134) and the second oblique sub-surface (2135);

The second oblique facet (2135), the first flat facet (2136) and the abutting face (41) are connected to form a downwardly protruding first relief (215);

The first lower groove wall (223) includes a third inclined facet (2234), a fourth inclined facet (2235) and a second flat facet (2236). The third inclined facet (2236) 2234) and the fourth oblique facet (2235) are both inclined faces, and the height of the end where the third inclined facet (2234) is connected to the first inner groove wall (222) is lower than the height of the end where the third oblique facet (2234) is connected to the fourth oblique facet (2235);

The fourth oblique facet (2235), the second flat facet (2236) and the limiting face (42) are connected to form a downwardly concave first locking groove (225).
The anti-embedded locking plate according to claim 29, characterized in that a first inclined surface (214) is provided at the connection between the first top surface (211) and the first outer side surface (212).
The counter-inserted locking plate according to claim 29, wherein the first convex step (51) comprises a first transverse surface (511) and a first longitudinal surface (512), and the first transverse surface A first oblique surface (513) is provided at the connection between (511) and the first longitudinal surface (512).
The anti-recessed locking plate according to claim 29, wherein the second convex step (53) comprises a second transverse surface (531) and a second longitudinal surface (532), and the second transverse surface A second inclined surface (533) is provided at the connection between (531) and the second longitudinal surface (532).
The counter-insert type locking plate according to claim 29, wherein the first protruding strip (61) comprises a first abutting surface (611) and a first pressing surface (612), the first A first guide surface (613) is provided at the connection between the abutting surface (611) and the first pressing surface (612), and the first guide surface (613) is an inclined surface.
The counter-inserted locking plate according to claim 29, wherein the second protruding strip (63) comprises a second abutting surface (631) and a second pressing surface (632), the second A second guide surface (633) is provided at the connection between the abutting surface (631) and the second pressing surface (632), and the second guide surface (633) is an inclined surface.
An in-line locking plate, assembled from a plate unit (10), the plate unit (10) has an upper surface (11), a bottom surface (12) and four sides, wherein at least two opposite sides A first tenon (21) and a first tenon (22) are respectively formed on the sides (13, 14); it is characterized in that,

The side edge (13) with the first tenon (21) is formed with a first abutting surface (131) connected with the corresponding edge of the upper surface (11), and the first abutting surface (131) is vertical direction setting;

The first tenon (21) is formed below the first butt surface (131), and the first tenon (21) protrudes outward from the first butt surface (131); the The first tenon (21) has a first top surface (211), a first outer surface (212) and a first bottom surface (213);

A second tenon groove (32) is further formed below the first tenon (21), and a first vertical connection connected to the corresponding edge of the bottom surface (12) is formed below the second tenon groove (32). facing surface (132), the second tongue groove (32) is concave from the first vertical surface (132) toward the direction of the upper surface (11);

An abutting surface (41) is formed between the first tenon (21) and the second tenon (32);

The other side edge (14) with the first tongue groove (22) is formed with a second abutting surface (141) connected with the corresponding edge of the upper surface (11), and the second abutting surface (141) is in the form of a second abutting surface (141). vertical setting;

The first tongue groove (22) is formed below the second butt surface (141), and the groove bottom of the first tongue groove (22) is concave inward from the second butt surface (141) ; the first tongue groove (22) has a first upper groove wall (221), a first inner groove wall (222) and a first lower groove wall (223);

A second tenon (31) protruding upward is further formed below the first tenon groove (22), and an edge connection corresponding to the bottom surface (12) is formed below the second tenon (31). the second vertical face (142);

A limiting surface (42) is formed between the first tenon (22) and the second tenon (31);

A first convex step (51) protruding to the outside is formed between the first top surface (211) of the first tenon (21) and the first abutting surface (131), and the first convex The step (51) protrudes outward from the first abutting surface (131);

A first groove (52) concave inward is formed between the first upper groove wall (221) of the first tongue groove (22) and the second abutting surface (141). The groove (52) is concave inward from the second abutting surface (141);

The first groove (52) is adapted to the first convex step (51), and the first groove (52) can accommodate the first convex step (51);

The connection between the second tongue groove (32) and the first vertical surface (132) is provided with a third tongue groove (72) concave inward, and the third tongue groove (72) extends from the The first vertical surface (132) is concave inward;

The connection between the second tenon (31) and the second vertical surface (142) is provided with a third tenon (71) protruding to the outside, and the third tenon (71) extends from the The second vertical surface (142) protrudes outward;

Thereby, the two adjacent plate units (10) can pass through the first tenon (21) and the first tenon groove (22), the first convex step (51) and the first groove (52), and the second convex The tenon (31) and the second tenon groove (32) and the third tenon (71) and the third tenon groove (72) cooperate with each other to perform a snap connection.
The anti-embedded locking plate according to claim 38, wherein the first bottom surface (213) comprises a first inclined top surface (2131) and a second inclined top surface (2132), the first inclined top surface (2132) The top surface (2131) is connected with the first outer side surface (212) and the second inclined top surface (2132);

The height of the end of the first sloping top surface (2131) connected with the first outer side surface (212) is lower than that of the first sloping top surface (2131) connecting with the second sloping top surface (2132) The height of the end of the first inclined top surface (2131) and the first outer side surface (212) is formed with a downwardly protruding second relief (216);

The height of the end of the second inclined top surface (2132) connected with the first inclined top surface (2131) is higher than the height of the connection between the second inclined top surface (2132) and the abutting surface (41) The height of the end portion, a first relief (215) protruding downward is formed at the connection between the second inclined top surface (2132) and the abutting surface (41);

The first lower groove wall (223) includes a first bevel surface (2231) and a second bevel surface (2232), the first bevel surface (2231) and the first inner groove wall (222) connected with the second inclined surface (2232);

The height of the end portion where the first inclined surface (2231) is connected to the first inner groove wall (222) is lower than that of the first inclined surface (2231) and the second inclined surface (2232) The height of the connected end, a second locking groove (226) recessed downward is formed at the connection between the first inclined surface (2231) and the first inner groove wall (222). The locking groove (226) can accommodate the second relief (216);

The height of the end of the second inclined resting surface (2232) connected with the first inclined resting surface (2231) is higher than that of the second inclined resting surface (2232) connected with the limiting surface (42). The height of the end portion, a downwardly concave first locking groove (225) is formed at the connection between the second inclined surface (2232) and the limiting surface (42), and the first locking groove (225) ) can accommodate the first relief (215).
The counter-insert locking plate according to claim 38, wherein the third tongue groove (72) comprises a third upper groove wall (723), a third inner groove wall (721) and a third lower groove wall ( 722);

The third tenon (71) includes a third top surface (713), a third outer surface (711) and a third bottom surface (712);

A first inclined guide surface (1321) is provided at the connection between the first vertical surface (132) and the third lower groove wall (722), and the first inclined guide surface (1321) is connected to the first inclined guide surface (1321). The end connected with the vertical surface (132) is arranged closer to the outer side of the plate unit (10) than the end connected with the first inclined guide surface (1321) and the third lower groove wall (722);

The third outer side surface (711) is an inclined surface, and the end of the third outer side surface (711) and the third bottom surface (712) is connected with respect to the third outer side surface (711) and the third top surface (713) The end of the connection is located closer to the inner side of the plate unit (10).
The counter-inserted locking plate according to claim 38, wherein the first tongue groove (22) has a first lower groove wall (223), and the first lower groove wall (223) is provided with a Lower recessed mounting slot (224).
The counter-insert locking plate according to claim 38, characterized in that a downwardly protruding protrusion ( 715) and an upwardly concave groove (714), the protrusion (715) is connected with the third tenon (71), and the groove (714) is connected with the second vertical surface (142) connect.
The anti-recessed locking plate according to claim 42, wherein the bottom surface of the protrusion (715) is higher than the bottom surface (12) of the plate unit (10).
The counter-embedded locking plate according to claim 42, characterized in that, the protrusions (715) are arc-shaped protrusions, and the grooves (714) are arc-shaped grooves.
The counter-insert locking plate according to claim 38, wherein the second tongue groove (32) comprises a second upper groove wall (321) and a second inner groove wall (322);

The second tenon (31) includes a second top surface (311) and a second outer side surface (312);

The first bottom surface (213) includes a first oblique subsurface (2134), a second oblique subsurface (2135) and a first flat subsurface (2136), and the first oblique subsurface (2134) and the second oblique facet (2135) is an inclined face, and the height of the end of the first inclined facet (2134) connected with the first outer side surface (212) is lower than that of the first the height of the end where the oblique facet (2134) is connected to the second oblique facet (2135);

The second oblique facet (2135), the first flat facet (2136) and the abutting face (41) are connected to form a downwardly protruding first relief (215);

The first lower groove wall (223) includes a third inclined facet (2234), a fourth inclined facet (2235) and a second flat facet (2236). The third inclined facet (2236) 2234) and the fourth oblique facet (2235) are both inclined faces, and the height of the end where the third inclined facet (2234) is connected to the first inner groove wall (222) is lower than the height of the end where the third oblique facet (2234) is connected to the fourth oblique facet (2235);

The fourth oblique facet (2235), the second flat facet (2236) and the limiting face (42) are connected to form a downwardly concave first locking groove (225).
The counter-inserted locking plate according to claim 45, characterized in that the connection between the third groove (72) and the second tongue groove (32) is lower than the abutting surface (41) The lowest point at the connection with the first bottom surface (213).
An in-line locking plate, assembled from a plate unit (10), the plate unit (10) has an upper surface (11), a bottom surface (12) and four sides, wherein at least two opposite sides A first tenon (21) and a first tenon groove (22) are respectively formed on the sides (13, 14); it is characterized in that one side (13) with the first tenon (21) a first abutting surface (131) connected with the corresponding edge of the upper surface (11) is formed, and the first abutting surface (131) is arranged vertically;

The first tenon (21) is formed below the first butt surface (131), and the first tenon (21) protrudes outward from the first butt surface (131); the The first tenon (21) has a first top surface (211), a first outer surface (212) and a first bottom surface (213);

A second tongue groove (32) concave inward is also formed below the first tenon (21), and an edge corresponding to the bottom surface (12) is formed below the second tongue groove (32) the connected first vertical surface (132), the groove bottom of the second tongue groove (32) is concave inward from the first vertical surface (132);

An abutting surface (41) is formed between the first tenon (21) and the second tenon (32);

The other side edge (14) with the first tongue groove (22) is formed with a second abutting surface (141) connected with the corresponding edge of the upper surface (11), and the second abutting surface (141) is in the form of a second abutting surface (141). vertical setting;

The first tongue groove (22) is formed below the second butt surface (141), and the groove bottom of the first tongue groove (22) is concave inward from the second butt surface (141) ; the first tongue groove (22) has a first upper groove wall (221), a first inner groove wall (222) and a first lower groove wall (223);

A second tenon (31) protruding to the outside is further formed below the first tenon groove (22), and an edge corresponding to the bottom surface (12) is formed below the second tenon (31). the connected second vertical surface (142), the head of the second tenon (31) protrudes outward from the second vertical surface (142);

A limiting surface (42) is formed between the first tenon (22) and the second tenon (31);

The first bottom surface (213) includes a first inclined top surface (2131) and a second inclined top surface (2132), and the first inclined top surface (2131) is connected to the first outer side surface (212) and the The second inclined top surface (2132) is connected;

The height of the end of the first sloping top surface (2131) connected with the first outer side surface (212) is lower than that of the first sloping top surface (2131) connecting with the second sloping top surface (2132) The height of the end of the first inclined top surface (2131) and the first outer side surface (212) is formed with a downwardly protruding second relief (216);

The height of the end of the second inclined top surface (2132) connected with the first inclined top surface (2131) is higher than that of the second inclined top surface (2132) connected with the abutting surface (41). The height of the end portion, a first relief (215) protruding downward is formed at the connection between the second inclined top surface (2132) and the abutting surface (41);

The first lower groove wall (223) includes a first bevel surface (2231) and a second bevel surface (2232), the first bevel surface (2231) and the first inner groove wall (222) connected with the second inclined surface (2232);

The height of the end portion where the first inclined surface (2231) is connected to the first inner groove wall (222) is lower than that of the first inclined surface (2231) and the second inclined surface (2232) The height of the connected end, a second locking groove (226) recessed downward is formed at the connection between the first inclined surface (2231) and the first inner groove wall (222). The locking groove (226) can accommodate the second relief (216);

The height of the end of the second inclined resting surface (2232) connected with the first inclined resting surface (2231) is higher than that of the second inclined resting surface (2232) connected with the limiting surface (42). The height of the end portion, a downwardly concave first locking groove (225) is formed at the connection between the second inclined surface (2232) and the limiting surface (42), and the first locking groove (225) ) can accommodate the first relief (215);

Thereby, the two adjacent plate units (10) can pass through the first tenon (21) and the first tenon groove (22), the first relief (215) and the first locking groove (225) and the second floating The protrusion (216) and the second locking groove (226) cooperate with each other to perform a snap-fit connection.
The anti-recessed locking plate according to claim 47, characterized in that, a first inclined guide surface ( 1321), the end of the first inclined guide surface (1321) connecting with the first vertical surface (132) is opposite to the first inclined guide surface (1321) and the second lower groove wall (323) ) connected ends are arranged closer to the outside of the plate unit (10);

A second inclined guide surface (3121) is provided at the connection between the second outer side surface (312) and the second bottom surface (313), and the second inclined guide surface (3121) is connected to the second bottom surface (313). ) connected end is disposed closer to the inner side of the plate unit (10) than the end connected with the second inclined guide surface (3121) and the second outer side surface (312).
The anti-embedded locking plate according to claim 47, characterized in that a first inclined surface (214) is provided at the connection between the first top surface (211) and the first outer side surface (212).
The counter-insert locking plate according to claim 47, wherein the second tongue groove (32) has a second upper groove wall (321), a second inner groove wall (322) and a second lower groove wall(323);

The second tenon (31) has a second top surface (311), a second outer surface (312) and a second bottom surface (313);

A first convex strip (61) protruding outward is formed between the second bottom surface (313) of the second tenon (31) and the second vertical surface (142), and the first convex The strip (61) protrudes outward from the second vertical surface (142);

A first accommodating groove (62) concave inward is formed between the second lower groove wall (323) of the second tongue groove (32) and the first vertical surface (132). The groove (62) is concave inward from the first vertical surface (132);

The first accommodating groove (62) is adapted to the first protruding strip (61), and the first accommodating groove (62) can accommodate the first protruding strip (61).
An in-line locking plate, assembled from a plate unit (10), the plate unit (10) has an upper surface (11), a bottom surface (12) and four sides, wherein at least two opposite sides A first tenon (21) and a first tenon groove (22) are respectively formed on the sides (13, 14); it is characterized in that one side (13) with the first tenon (21) a first abutting surface (131) connected with the corresponding edge of the upper surface (11) is formed, and the first abutting surface (131) is arranged vertically;

The first tenon (21) is formed below the first butt surface (131), and the first tenon (21) protrudes outward from the first butt surface (131); the The first tenon (21) has a first top surface (211), a first outer side surface (212) and a first bottom surface (213);

A second tongue groove (32) concave inward is also formed below the first tenon (21), and an edge corresponding to the bottom surface (12) is formed below the second tongue groove (32) the connected first vertical surface (132), the groove bottom of the second tongue groove (32) is concave inward from the first vertical surface (132);

An abutting surface (41) is formed between the first tenon (21) and the second tenon (32);

The other side edge (14) with the first tongue groove (22) is formed with a second abutting surface (141) connected with the corresponding edge of the upper surface (11), and the second abutting surface (141) is in the form of a second abutting surface (141). vertical setting;

The first tongue groove (22) is formed below the second butt surface (141), and the groove bottom of the first tongue groove (22) is concave inward from the second butt surface (141) ; the first tongue groove (22) has a first upper groove wall (221), a first inner groove wall (222) and a first lower groove wall (223);

A second tenon (31) protruding to the outside is further formed below the first tenon groove (22), and an edge corresponding to the bottom surface (12) is formed below the second tenon (31). the connected second vertical surface (142), the head of the second tenon (31) protrudes outward from the second vertical surface (142);

A limiting surface (42) is formed between the first tenon (22) and the second tenon (31);

A first convex strip (61) protruding outward is formed between the second bottom surface (313) of the second tenon (31) and the second vertical surface (142), and the first convex The strip (61) protrudes outward from the second vertical surface (142);

A first accommodating groove (62) concave inward is formed between the second lower groove wall (323) of the second tongue groove (32) and the first vertical surface (132). The groove (62) is concave inward from the first vertical surface (132);

The first accommodating groove (62) is adapted to the first protruding strip (61), and the first accommodating groove (62) can accommodate the first protruding strip (61);

The first lower groove wall (223) is provided with a downwardly concave installation groove (224);

Thereby, the two adjacent plate units (10) can pass through the first tenon (21) and the first tenon groove (22), the first protruding strip (61), the first accommodating groove (62) and the second protruding The tenon (31) and the second tenon groove (32) cooperate with each other to perform snap connection.
An in-line locking plate, assembled from a plate unit (10), the plate unit (10) has an upper surface (11), a bottom surface (12) and four sides, wherein at least two opposite sides The sides (13, 14) are respectively formed with a first tenon (21) and a first tenon (22) which are matched with each other; it is characterized in that,

The side edge (13) with the first tenon (21) is formed with a first abutting surface (131) connected with the corresponding edge of the upper surface (11), and the first abutting surface (131) is vertical direction setting;

The first tenon (21) is formed below the first butt surface (131), and the first tenon (21) protrudes outward from the first butt surface (131);

A second tenon groove (32) is further formed below the first tenon (21), and a first vertical connection connected to the corresponding edge of the bottom surface (12) is formed below the second tenon groove (32). facing surface (132), the second tongue groove (32) is concave from the first vertical surface (132) toward the direction of the upper surface (11);

An abutting surface (41) is formed between the first tenon (21) and the second tenon (32);

The other side edge (14) with the first tongue groove (22) is formed with a second abutting surface (141) connected with the corresponding edge of the upper surface (11), and the second abutting surface (141) is in the form of a second abutting surface (141). vertical setting;

The first tongue groove (22) is formed below the second butt surface (141), and the groove bottom of the first tongue groove (22) is concave inward from the second butt surface (141) ;

A second tenon (31) protruding upward is further formed below the first tenon groove (22), and an edge connection corresponding to the bottom surface (12) is formed below the second tenon (31). the second vertical face (142);

A limiting surface (42) is formed between the first tenon (22) and the second tenon (31);

The first bottom surface (213) of the first tenon (21) and the abutting surface (41) are connected to form a downwardly protruding first relief (215);

The first lower groove wall (223) of the first tongue groove (22) and the limiting surface (42) are connected to form a downwardly concave first locking groove (225);

The connection between the second tongue groove (32) and the first vertical surface (132) is provided with a third tongue groove (72) concave inward, and the third tongue groove (72) extends from the The first vertical surface (132) is concave inward;

The connection between the second tenon (31) and the second vertical surface (142) is provided with a third tenon (71) protruding to the outside, and the third tenon (71) extends from the The second vertical surface (142) protrudes outward;

Thereby, the two adjacent plate units (10) can pass through the first tenon (21) and the first tenon groove (22), the second tenon (31) and the second tenon groove (32) and the third tenon The tenon (71) and the third tenon groove (72) cooperate with each other to perform snap connection.
An in-line locking plate, assembled from a plate unit (10), the plate unit (10) has an upper surface (11), a bottom surface (12) and four sides, wherein at least two opposite sides A first tenon (21) and a first tenon (22) are respectively formed on the sides (13, 14); it is characterized in that,

The side edge (13) with the first tenon (21) is formed with a first abutting surface (131) connected with the corresponding edge of the upper surface (11), and the first abutting surface (131) is vertical direction setting;

The first tenon (21) is formed below the first butt surface (131), and the first tenon (21) protrudes outward from the first butt surface (131); the The first tenon (21) has a first top surface (211), a first outer surface (212) and a first bottom surface (213);

A second tenon (32) concave inward is also formed below the first tenon (21), and a third tenon (32) protruding outward is formed below the second tenon (32). 71);

A first vertical surface (132) connected with the corresponding edge of the bottom surface (12) is formed below the third tenon (71), and the third tenon (71) is formed from the first vertical The surface (132) protrudes outward;

An abutting surface (41) is formed between the first tenon (21) and the second tenon (32);

The other side edge (14) with the first tongue groove (22) is formed with a second abutting surface (141) connected with the corresponding edge of the upper surface (11), and the second abutting surface (141) is in the form of a second abutting surface (141). vertical setting;

The first tongue groove (22) is formed below the second butt surface (141), and the groove bottom of the first tongue groove (22) is concave inward from the second butt surface (141) ; the first tongue groove (22) has a first upper groove wall (221), a first inner groove wall (222) and a first lower groove wall (223);

A second tenon (31) protruding outward is also formed below the first tenon (22), and a third tenon (31) concave inward is formed below the second tenon (31). 72), the third tenon (72) is adapted to the third tenon (71), and the third tenon (72) can accommodate the third tenon (71);

A second vertical surface (142) connected to the edge corresponding to the bottom surface (12) is formed below the third tongue groove (72), and the third tongue groove (72) extends from the second vertical The face (142) is concave inward;

A limiting surface (42) is formed between the first tenon (22) and the second tenon (31);

A first convex step (51) protruding to the outside is formed between the first top surface (211) of the first tenon (21) and the first abutting surface (131), and the first convex The step (51) protrudes outward from the first abutting surface (131);

A first groove (52) concave inward is formed between the first upper groove wall (221) of the first tongue groove (22) and the second abutting surface (141). The groove (52) is concave inward from the second abutting surface (141);

The first groove (52) is adapted to the first convex step (51), and the first groove (52) can accommodate the first convex step (51);

Thereby, the two adjacent plate units (10) can pass through the first tenon (21) and the first tenon groove (22), the first convex step (51) and the first groove (52), and the second convex The tenon (31), the second tenon groove (32) and the third tenon (71) and the third tenon groove (72) cooperate with each other to perform a snap connection.
The counter-inserted locking plate according to claim 53, wherein the first bottom surface (213) comprises a first inclined top surface (2131) and a second inclined top surface (2132), the first inclined top surface (2132) The top surface (2131) is connected with the first outer side surface (212) and the second inclined top surface (2132);

The height of the end of the first sloping top surface (2131) connected with the first outer side surface (212) is lower than that of the first sloping top surface (2131) connecting with the second sloping top surface (2132) The height of the end of the first inclined top surface (2131) and the first outer side surface (212) is formed with a downwardly protruding second relief (216);

The height of the end of the second inclined top surface (2132) connected with the first inclined top surface (2131) is higher than that of the second inclined top surface (2132) connected with the abutting surface (41). The height of the end portion, a first relief (215) protruding downward is formed at the connection between the second inclined top surface (2132) and the abutting surface (41);

The first lower groove wall (223) includes a first bevel surface (2231) and a second bevel surface (2232), the first bevel surface (2231) and the first inner groove wall (222) connected with the second inclined surface (2232);

The height of the end portion where the first inclined surface (2231) is connected to the first inner groove wall (222) is lower than that of the first inclined surface (2231) and the second inclined surface (2232) The height of the connected end, a second locking groove (226) recessed downward is formed at the connection between the first inclined surface (2231) and the first inner groove wall (222). The locking groove (226) can accommodate the second relief (216);

The height of the end of the second inclined resting surface (2232) connected with the first inclined resting surface (2231) is higher than that of the second inclined resting surface (2232) connected with the limiting surface (42). The height of the end portion, a downwardly concave first locking groove (225) is formed at the connection between the second inclined surface (2232) and the limiting surface (42), and the first locking groove (225) ) can accommodate the first relief (215).
The counter-insert locking plate according to claim 53, wherein the second tongue groove (32) comprises a second upper groove wall (321) and a second inner groove wall (322);

The second tenon (31) includes a second top surface (311) and a second outer side surface (312);

The first bottom surface (213) includes a first oblique subsurface (2134), a second oblique subsurface (2135) and a first flat subsurface (2136), and the first oblique subsurface (2134) and the second oblique facet (2135) is an inclined face, and the height of the end of the first inclined facet (2134) connected to the first outer side (212) is lower than the first the height of the end where the oblique facet (2134) is connected to the second oblique facet (2135);

The second oblique facet (2135), the first flat facet (2136) and the abutting face (41) are connected to form a downwardly protruding first relief (215);

The first lower groove wall (223) includes a third inclined facet (2234), a fourth inclined facet (2235) and a second flat facet (2236). The third inclined facet (2236) 2234) and the fourth oblique facet (2235) are both inclined faces, and the height of the end where the third inclined facet (2234) is connected to the first inner groove wall (222) is lower than the height of the end where the third oblique facet (2234) is connected to the fourth oblique facet (2235);

The fourth oblique facet (2235), the second flat facet (2236) and the limiting face (42) are connected to form a downwardly concave first locking groove (225).
An in-line locking plate, assembled from a plate unit (10), the plate unit (10) has an upper surface (11), a bottom surface (12) and four sides, wherein at least two opposite sides A first tenon (21) and a first tenon (22) are respectively formed on the sides (13, 14); it is characterized in that,

One side (13) with the first tenon (21) is formed with a first pair of veneers (133) connected with the corresponding edges of the upper surface (11) and with the first pair of veneers (133) ) vertically connected first pressing surface (134), the first pressing surface (134) is extended toward the inner side of the plate unit (10), and the bottom of the first pressing surface (134) is formed with a first butt surface (131), the first butt surface (131) is arranged vertically;

The first tenon (21) is formed below the first butt surface (131), and the first tenon (21) protrudes outward from the first butt surface (131);

A second tenon groove (32) is further formed below the first tenon (21), and a first vertical connection connected to the corresponding edge of the bottom surface (12) is formed below the second tenon groove (32). The groove bottom of the second tongue groove (32) facing the surface (132) is concave inward from the first vertical surface (132);

An abutting surface (41) is formed between the first tenon (21) and the second tenon (32);

The other side (14) with the first tongue and groove (22) is formed with a second pair of veneers (143) connected with the corresponding edges of the upper surface (11) and with the second pair of veneers ( 143) A connected second pressing surface (144), the second pair of veneers (143) are arranged corresponding to the first pair of veneers (133), and the second pressing surface (144) faces the The outer side of the plate unit (10) is extended and arranged, a second abutting surface (141) is formed below the second pressing surface (144), and the second abutting surface (141) is arranged vertically;

The first tongue groove (22) is formed below the second butt surface (141), and the groove bottom of the first tongue groove (22) is concave inward from the second butt surface (141) ;

A second tenon (31) protruding to the outside is further formed below the first tenon groove (22), and an edge corresponding to the bottom surface (12) is formed below the second tenon (31). the connected second vertical surface (142), the head of the second tenon (31) protrudes outward from the second vertical surface (142);

A limiting surface (42) is formed between the first tenon (22) and the second tenon (31);

The first tenon (21) has a first top surface (211), a first outer side surface (212) and a first bottom surface (213);

The first tongue groove (22) has a first upper groove wall (221), a first inner groove wall (222) and a first lower groove wall (223);

The second tongue groove (32) has a second upper groove wall (321), a second inner groove wall (322) and a second lower groove wall (323);

The second tenon (31) has a second top surface (311), a second outer surface (312) and a second bottom surface (313);

Between the first top surface (211) of the first tenon (21) and the first abutting surface (131), a first convex step (51) protruding to the outside and in the shape of a step is formed, so the first convex step (51) protrudes outward from the first abutting surface (131);

Between the first upper groove wall (221) of the first tongue groove (22) and the second abutting surface (141), a first groove (52) which is concave inward and has a stepped shape is formed. The first groove (52) is concave inward from the second abutting surface (141);

The first groove (52) is adapted to the first convex step (51), and the first groove (52) can accommodate the first convex step (51);

A first convex strip (61) protruding outward is formed between the second bottom surface (313) of the second tenon (31) and the second vertical surface (142), and the first convex The strip (61) protrudes outward from the second vertical surface (142);

A first accommodating groove (62) concave inward is formed between the second lower groove wall (323) of the second tongue groove (32) and the first vertical surface (132). The groove (62) is concave inward from the first vertical surface (132);

The first accommodating groove (62) is adapted to the first protruding strip (61), and the first accommodating groove (62) can accommodate the first protruding strip (61);

Thereby, two adjacent plate units (10) can pass through the first tenon (21), the first tenon groove (22), the first convex step (51), the first groove (52), the first convex The strip (61), the first accommodating groove (62), the second tenon (31) and the second tenon groove (32) cooperate with each other to be fastened and connected.
The counter-insert locking plate according to claim 56, characterized in that, the first bottom surface (213) of the first tenon (21) and the abutting surface (41) are connected to form a downwardly protruding a first relief (215);

The first lower groove wall (223) of the first tongue groove (22) and the limiting surface (42) are connected to form a downwardly concave first locking groove (225).
A counter-embedded locking plate, assembled from a plate unit (10), the plate unit (10) has an upper surface (11), a bottom surface (12) and four sides, wherein at least two opposite sides A first tenon (21) and a first tenon (22) are respectively formed on the sides (13, 14); it is characterized in that,

The side edge (13) with the first tenon (21) is formed with a first pair of veneers (133) connected with the corresponding edges of the upper surface (11) and with the first pair of veneers (133) ) connected to the first pressing surface (134), the first pressing surface (134) extends toward the inner side of the plate unit (10), and a second pressing surface (134) is formed below the first pressing surface (134). an abutting surface (131), the first abutting surface (131) is arranged vertically;

The first tenon (21) is formed below the first butt surface (131), and the first tenon (21) protrudes outward from the first butt surface (131);

A second tenon groove (32) is further formed below the first tenon (21), and a first vertical connection connected to the corresponding edge of the bottom surface (12) is formed below the second tenon groove (32). facing surface (132), the second tongue groove (32) is concave from the first vertical surface (132) toward the direction of the upper surface (11);

An abutting surface (41) is formed between the first tenon (21) and the second tenon (32);

The other side (14) with the first tongue and groove (22) is formed with a second pair of veneers (143) connected with the corresponding edges of the upper surface (11) and with the second pair of veneers ( 143) A connected second pressing surface (144), the second pair of veneers (143) are arranged corresponding to the first pair of veneers (133), and the second pressing surface (144) faces the The outer side of the plate unit (10) is extended and arranged, a second abutting surface (141) is formed below the second pressing surface (144), and the second abutting surface (141) is arranged vertically;

The first tongue groove (22) is formed below the second butt surface (141), and the groove bottom of the first tongue groove (22) is concave inward from the second butt surface (141) ;

A second tenon (31) protruding upward is further formed below the first tenon groove (22), and an edge connection corresponding to the bottom surface (12) is formed below the second tenon (31). the second vertical face (142);

A limiting surface (42) is formed between the first tenon (22) and the second tenon (31);

The connection between the second tongue groove (32) and the first vertical surface (132) is provided with a third tongue groove (72) concave inward, and the third tongue groove (72) extends from the The first vertical surface (132) is concave inward;

The connection between the second tenon (31) and the second vertical surface (142) is provided with a third tenon (71) protruding to the outside, and the third tenon (71) extends from the The second vertical surface (142) protrudes outward;

The first tenon (21) has a first top surface (211), a first outer side surface (212) and a first bottom surface (213);

The first tongue groove (22) has a first upper groove wall (221), a first inner groove wall (222) and a first lower groove wall (223);

Between the first top surface (211) of the first tenon (21) and the first abutting surface (131), a first convex step (51) protruding to the outside and in the shape of a step is formed, so the first convex step (51) protrudes outward from the first abutting surface (131);

Between the first upper groove wall (221) of the first tongue groove (22) and the second abutting surface (141), a first groove (52) which is concave inward and has a stepped shape is formed. The first groove (52) is concave inward from the second abutting surface (141);

The first groove (52) is adapted to the first convex step (51), and the first groove (52) can accommodate the first convex step (51);

Thereby, the two adjacent plate units (10) can pass through the first tenon (21) and the first tenon groove (22), the second tenon (31) and the second tenon groove (32) and the third tenon The tenon (71) and the third tenon groove (72) cooperate with each other to perform snap connection.
The counter-insert locking plate according to claim 58, characterized in that, the first bottom surface (213) of the first tenon (21) and the abutting surface (41) are connected to form a downwardly protruding a first relief (215);

The first lower groove wall (223) of the first tongue groove (22) and the limiting surface (42) are connected to form a downwardly concave first locking groove (225).
A method for buckling an embedded locking plate, characterized in that it comprises the following steps:

A plurality of board units (10) are provided, and the provided board unit (10) has an upper surface (11), a bottom surface (12) and four side edges, wherein at least two opposite side edges (13, 14) are respectively formed on There are matching first tenons (21) and first tenon grooves (22);

A first butting surface (131) connected to the corresponding edge of the upper surface (11) is formed on the side (13) with the first tenon (21), and the first abutting surface (131) is vertical The first tenon (21) is formed below the first butt surface (131), and the first tenon (21) protrudes outward from the first butt surface (131). , the first tenon (21) has a first top surface (211), a first outer surface (212) and a first bottom surface (213);

A second tongue groove (32) recessed inward is formed below the first tenon (21), and an edge corresponding to the bottom surface (12) is formed below the second tongue groove (32) The connected first vertical surface (132), the groove bottom of the second tongue groove (32) is concave inward from the first vertical surface (132), and the second tongue groove (32) has a first vertical surface (132). two upper groove walls (321), a second inner groove wall (322) and a second lower groove wall (323);

A resting surface (41) is formed between the second upper groove wall (321) and the first bottom surface (213);

A second abutting surface (141) connected with the corresponding edge of the upper surface (11) is formed on the other side edge (14) with the first tongue groove (22), the second abutting surface (141) is arranged vertically, the first tongue groove (22) is formed below the second abutting surface (141), and the groove bottom of the first tongue groove (22) extends from the second abutting surface (141) inwardly recessed, the first tongue groove (22) has a first upper groove wall (221), a first inner groove wall (222) and a first lower groove wall (223);

A second tenon (31) protruding outward is formed below the first tenon groove (22), and an edge corresponding to the bottom surface (12) is formed below the second tenon (31). The connected second vertical surface (142), the head of the second tenon (31) protrudes outward from the second vertical surface (142), and the second tenon (31) has a first two top surfaces (311), a second outer surface (312) and a second bottom surface (313);

A limiting surface (42) is formed between the second top surface (311) and the first lower groove wall (223);

A first convex step (51) protruding to the outside is formed between the first top surface (211) of the first tenon (21) and the first abutting surface (131), and the first The convex step (51) protrudes outward from the first abutting surface (131);

A first groove (52) concave inward is formed between the first upper groove wall (221) of the first tongue groove (22) and the second abutting surface (141). The groove (52) is concave inward from the second abutting surface (141); and the first groove (52) is adapted to the first convex step (51), the first groove (52) (52) can accommodate the first convex step (51);

The sheet unit (10) with the first tenon (21) moves in the same plane towards the other sheet unit (10) with the first tenon (22), which starts to enter the In the first tongue groove (22), the second tongue groove (32) begins to cover the second tenon (31), so that the first outer side (212) of the first tenon (21) ) against the wall surface corresponding to the first groove (52), the side surface corresponding to the first convex step (51) abuts against the second abutting surface (141), so that the abutting surface (41) ) against the limiting surface (42), and then exerting force on the edge of the plate unit (10) with the first tenon (21) in a pressing manner, guided by the limiting surface (42), Let the first tenon (21) enter the first tenon groove (22), the first convex step (51) enter the first groove (52), and the second tenon groove ( 32) The second tenon (31) is snapped, that is, the two-way locking connection between the plate units (10) is realized.
A method for buckling an embedded locking plate, characterized in that it comprises the following steps:

A plurality of board units (10) are provided, and the provided board unit (10) has an upper surface (11), a bottom surface (12) and four side edges, wherein at least two opposite side edges (13, 14) are respectively formed on There are matching first tenons (21) and first tenon grooves (22);

A first butting surface (131) connected to the corresponding edge of the upper surface (11) is formed on the side (13) with the first tenon (21), and the first abutting surface (131) is vertical The first tenon (21) is formed below the first butt surface (131), and the first tenon (21) protrudes outward from the first butt surface (131). , the first tenon (21) has a first top surface (211), a first outer surface (212) and a first bottom surface (213);

A second tongue groove (32) recessed inward is formed below the first tenon (21), and an edge corresponding to the bottom surface (12) is formed below the second tongue groove (32) The connected first vertical surface (132), the groove bottom of the second tongue groove (32) is concave inward from the first vertical surface (132), and the second tongue groove (32) has a first two upper groove walls (321), a second inner groove wall (322) and a second lower groove wall (323);

A resting surface (41) is formed between the second upper groove wall (321) and the first bottom surface (213);

A second abutting surface (141) connected with the corresponding edge of the upper surface (11) is formed on the other side edge (14) with the first tongue groove (22), the second abutting surface (141) is arranged vertically, the first tongue groove (22) is formed below the second abutting surface (141), and the groove bottom of the first tongue groove (22) extends from the second abutting surface (141) inwardly recessed, the first tongue groove (22) has a first upper groove wall (221), a first inner groove wall (222) and a first lower groove wall (223);

A second tenon (31) protruding outward is formed below the first tenon groove (22), and an edge corresponding to the bottom surface (12) is formed below the second tenon (31). The connected second vertical surface (142), the head of the second tenon (31) protrudes outward from the second vertical surface (142), and the second tenon (31) has a first two top surfaces (311), a second outer surface (312) and a second bottom surface (313);

A limiting surface (42) is formed between the second top surface (311) and the first lower groove wall (223);

A first convex step (51) protruding to the outside is formed between the first top surface (211) of the first tenon (21) and the first abutting surface (131), and the first The convex step (51) protrudes outward from the first abutting surface (131);

A first groove (52) concave inward is formed between the first upper groove wall (221) of the first tongue groove (22) and the second abutting surface (141). The groove (52) is concave inward from the second abutting surface (141); and the first groove (52) is adapted to the first convex step (51), the first groove (52) (52) can accommodate the first convex step (51);

Move the board unit (10) with the first tenon (21) in an inclined state to the other board unit (10) with the first tenon (22); make the first tenon (21) part Inserted into the first tongue groove (22), the second tongue groove (32) is partially covered with the second tenon (31), so that the first butt surface (131) is connected to the second tongue (31) The abutting surfaces (141) abut against each other, and then the plate unit (10) with the first tenon (21) is rotated and pressed down, so that the first tenon (21) enters the first tenon groove (22) In the middle, the first convex step (51) enters the first groove (52), and the second tenon (32) is snapped on the second tenon (31), that is, the plate unit is realized (10) Two-way lock connection between.