CN207597806U - Lock-catch type plate - Google Patents

Abstract

The utility model provides a kind of lock-catch type plate, and the plank is respectively formed with tenon and tongue-and-groove at least two opposite sides, and the upper limb of the tenon and tongue-and-groove forms class structure and mutually guides, and tenon is made to be easy to be pressed in coak slot；The lower edge Formation cross-section of the tenon and tongue-and-groove buckle structure at an acute angle, make to push and press or be inserted into the same plane between sheet unit and spinning movement realize easily operated fastening, lock after be not easy the lock-catch type plate loosened.Supporting block is convexly equipped on the upside of the tenon, support slot is convexly equipped on the upside of tongue-and-groove, by the way that the lower edge section of tenon and tongue-and-groove to be configured to the arc using supporting block lateral surface or support slot cell wall peak as the center of circle, make that sheet unit can be overturn by supporting point of the center of circle between the sheet unit after assembling, make arcing lower edge Relative sliding and compress lock catch block elastic deformation by a small margin, tenon is easily drawn out after realizing overturning, sheet unit is disassembled into separation in the case where not destroying buckle structure.

Description

Lock-catch type plate

Technical field

The utility model is related to a kind of lock-catch type plates, can be the sliceable plank such as floor or siding, especially It is the plank that plank side is provided with tenon and tongue-and-groove and can allow sheet unit that can mutually be latched in splicing.

Background technology

It is quite permanent that grooved and tongued floor is employed, and package assembly is also applied to siding or similar plank, and the present is with ground It being explained for plate, grooved and tongued floor is easy to assembly and can allow combination is connected with each other between sheet unit, so extensively by consumer institute Using what related dealer also did one's utmost carries out research improvement, it is desirable to be able to design the product of more practicability.

Wherein, grooved and tongued floor is avoided to form crown deformation or gap between sheet unit due to moisture expansion and drying shrinkage phenomenon after assembling The basic use demand in gap, in order to solve foregoing problems, at present just like CN02124731.5 Chinese utility model patent cases By setting viscose glue between tenon and tongue-and-groove, alternatively, as CN200520060450.6 and CN201020286029.8 China is real It is by the way that tenon and tongue-and-groove are formed the lock-catch type plate with auto-lock function, to realize between sheet unit with new patent case The stability of integrated structure.However, using viscose glue combination sheet unit can cause plank assemble after not easily-disassembled, the plate after disassembling Material unit is also because there are be difficult to reuse during viscose glue；Using tenon and tongue-and-groove self-locking combination sheet unit, must be incited somebody to action in combination The tilting of a wherein sheet unit obliquely can just be bound to another sheet unit side, so as to after floor long side combines positioning When carrying out the combination of floor short side again, because floor short side can not tilt obliquely again, cause lock is not present between the short side of floor Buckle structure or the flat button tongue and groove that tradition can only be used not have auto-lock function are assembled, and the lock reduced between sheet unit is tight Gu effect, and the parquets that paving forms different graphic cannot be spelled.

The series such as the CN97190692.0 that for another example Uniling Management Pte B.V is approved《The floor being made of hard sheet unit And the method for this sheet unit of manufacture》Chinese invention patent case mainly makes sheet unit can be by tongue when being connected with each other After shape object oblique cutting enters in plank slot, it is connected with each other in a manner that ligule tenon is pushed for fulcrum rotation plank and plane mutually elapses Together, and by its mechanical locking it prevents from disengaging, so as to when carrying out the combination of short side again after long side combines positioning, still may be used It is flat-pushing to be combined.It, must be with however, aforementioned patent is in assembly and connection sheet unit by the way of mutually being elapsed using plane It increases flat-pushing strength and partial elastic deformation is protruded under slot to force, must can often be allowed accordingly in a manner of tapping by another side Short side be assembled to positioning, although the lock effect improved between sheet unit can be realized, there are inconvenient and The damage of board unit structure is easily caused when tapping.

It is worth noting that, grooved and tongued floor, in assembling process is completed, there is also splice mistake or other factors because of pattern And need to remove assembled sheet unit the possibility of replacement, alternatively, being intended to do secondary by grooved and tongued floor in use, being also required to Keep the tongue-and-groove structure integrality of grooved and tongued floor.Therefore other than existing grooved and tongued floor is in addition in aforementioned assembling the technical issues of, tearing open Also generally because the section of buckle structure (such as lock buckling groove, lock catch block) is at an acute angle during solution, and exist and quite be easy to cause when disassembling The acuter angles mutually to link closely are damaged, and are had and be subject to improved needs.

Utility model content

In view of the foregoing, the utility model provides a kind of lock-catch type plate, to overcome tool lock work(in the prior art Can plank technical problems such as fragile tongue-and-groove structure when construction is inconvenient in assembling and disassembles.

To achieve the above object, the technical scheme adopted by the utility model is that providing a kind of lock-catch type plate, the plank It is to be assembled to be formed by rectangular sheet unit, each sheet unit tool is there are four side, at least two opposite sides On be respectively formed with tenon (10) and tongue-and-groove (50), define the side that the sheet unit (100) is formed with the tenon (10) For first side (103), the side for being formed with the tongue-and-groove (50) is second side (104)；Between the sheet unit (100) It is mutually fastened by the tenon (10) and tongue-and-groove (50)；Wherein, first side (103) shape of each sheet unit (100) Into the tenon (10) and supporting block (20) protruded outwardly, the upper limb of the tenon (10) be formed with class structure and with the branch The lower edge of bracer (20) is collectively formed towards the guide groove (30) being recessed；The lower edge of the tenon (10) and the first side (103) section lock buckling groove at an acute angle (40) is collectively formed between；Wherein, the lateral surface (21) of the supporting block (20) and institute The lateral surface (11) for stating tenon (10) is comparably and flushes or more protrude, and the lower edge cross sectional shape of the tenon (10) is with described The peak of supporting block (20) lateral surface (21) is the arc in the center of circle；Second side (104) shape of each sheet unit (100) Into the upper limb towards the tongue-and-groove (50) that is recessed and support slot (60), the tongue-and-groove (50) be formed with class structure and with the branch The guide block (70) protruded outwardly is collectively formed in the lower edge of support slot (60)；The lower edge of the tongue-and-groove (50) and the second side (104) section lock catch block at an acute angle (80) is collectively formed between；Wherein, the lower edge cross sectional shape of the tongue-and-groove (50) is with institute The peak for stating the cell wall (61) of support slot (60) is the arc in the center of circle；

Whereby, the tenon (10) is guided to be pushed away by the lock catch block (80) between sheet unit to be assembled (100) Sending buckle enters or is placed in the tongue-and-groove (50) and is guided by the class structure of the guide groove (30) and guide block (70) by rotation The tenon (10) compresses the lock catch block (80) elastic deformation and is buckled into the lock buckling groove (40) with being pressed；The plank Between unit (100) and pass through the guide groove (30) and contacted with the class structure of guide block (70) and offset to fasten with reference to the tenon (10) with the arcing lower edge of tongue-and-groove (50)；And by carrying the tenon (10) between the sheet unit (100) after assembling Sheet unit (100) is overturn as supporting point using the peak of its supporting block (20) lateral surface (21) and tilted, and makes the tenon (10) The guide block (70) is compressed to retreat from the tongue-and-groove (50) with the lock catch block (80) elastic deformation.

The utility model lock-catch type plate further improvement lies in that, the lower edge of the tenon (10) is equipped with a lower protruding block (18), inside is configured to one first cambered surface (182), and the cross sectional shape of first cambered surface (182) is with the supporting block (20) The peak of lateral surface (21) is the arc in the center of circle；The lower edge of the tongue-and-groove (50) is equipped with a lower groove (58), the lower groove (58) lower protruding block (18) can be housed, lower groove (58) minimum point is formed between the lock catch block (80) peak One second cambered surface (582), the cross sectional shape of second cambered surface (582) is with the highest of the cell wall of the support slot (60) (61) Arc of the point for the center of circle.

Further improve of the utility model lock-catch type plate is that the outside of lower protruding block (18) minimum point shapes For an inclined-plane (181), the inclined-plane (181) connect with the lateral surface (11) of the tenon (10)；The lower groove (58) is minimum Point inside is configured to the inclined-plane (581) to match with the lower protruding block (18) inclined-plane (181), the inclined-plane (581) and the tenon Internal groove side wall (51) connection of slot (50).

Further improve of the utility model lock-catch type plate is that the outside of lower protruding block (18) minimum point shapes There is a plane (183) for an inclined-plane (181A), between the inclined-plane (181A) and the lateral surface (11) of the tenon (10) even It connects；The inclined-plane to match with the lower protruding block (18) inclined-plane (181A) is configured on the inside of lower groove (58) minimum point (581A) between the inclined-plane (581A) and the internal groove side wall (51) of the tongue-and-groove (50) there is a plane (583) to connect.

Further improve of the utility model lock-catch type plate is that the upper limb of the tenon (10) is formed with a top surface (12), the top surface (12) and cell wall (31) junction of the guide groove (30) are equipped with convex rank (13), the top of the convex rank (13) Face is configured to a stop surface (14), and side is configured to one and abuts against face (15)；The top surface (12) of the tenon (10) and lateral surface (11) stop surface (14) of junction and the convex rank (13) forms one first tiltedly with abutting against face (15) junction difference chamfering Guide face (16) and one second oblique surface (17)；The upper limb of the tongue-and-groove (50) is formed with cell wall on one (52), the upper cell wall (52) raised line (53) is equipped with the lower edge junction of the guide block (70), the bottom surface of the raised line (53) is configured to a stop surface (54), side is configured to one and abuts against face (55)；The upper cell wall (52) of the tongue-and-groove (50) and the lateral surface of the guide block (70) (71) stop surface (54) of junction and the raised line (53) is oblique with abutting against face (55) junction one third of difference chamfering formation Guide face (56) and one the 4th oblique surface (57).

Further improve of the utility model lock-catch type plate be, lower protruding block (18) minimum point and the tenon (10) lateral surface (11) peak extend vertically horizontal distance (L1) between line less than the lock catch block (80) peak with Face (55) minimum point that abuts against of the raised line (53) extends vertically horizontal distance (L2) between line；Lower protruding block (18) minimum point Horizontal distance (L1) between line is extended vertically more than the lower groove (58) with lateral surface (11) peak of the tenon (10) Face (55) minimum point that abuts against of minimum point and the raised line (53) extends vertically horizontal distance (L3) between line.

Further improve of the utility model lock-catch type plate be, the cell wall (31) of the guide groove (30) with it is described Lateral surface (11) peak of tenon (10) extends vertically lateral surface of the horizontal distance (L4) between line more than the guide block (70) (71) and face (55) minimum point that abuts against of the raised line (53) extends vertically horizontal distance (L5) between line；The guide groove (30) Cell wall (31) and the tenon (10) the horizontal distance (L4) that extends vertically between line of lateral surface (11) peak can be more than, etc. In or less than between the lateral surface (71) of the guide block (70) and the straight extension line of internal groove side wall (51) peak weight of the tongue-and-groove (50) Horizontal distance (L6).

Further improve of the utility model lock-catch type plate be, the lateral surface (21) of the supporting block (20) and institute The first side (103) for stating sheet unit (100) extends vertically horizontal distance (L7) between line more than the supporting block (20) The cell wall (31) of lateral surface (21) and the guide groove (30) extends vertically the horizontal distance (L8) between line；The support slot (60) The second side (104) of cell wall (61) and the sheet unit (100) extends vertically horizontal distance (L9) between line more than institute The lateral surface (71) of cell wall (61) and the guide block (70) for stating support slot (60) extends vertically the horizontal distance (L10) between line.

Further improve of the utility model lock-catch type plate be, peak and the plate of the lock catch block (80) There is inclined guide surface (81) connection between the second side (104) of material unit (100).

Further improve of the utility model lock-catch type plate is that the supporting block (20) is in its lateral surface (21) Top corner is configured to chamfering at end；The support slot (60) is configured to chamfering at the top corner end of its cell wall (61).

Further improve of the utility model lock-catch type plate is that the sheet unit (100) has opposite two Long side and two short sides；The long side of the sheet unit (100) forms the tenon (10), the short side of the sheet unit (100) Form the tongue-and-groove (50).

Further improve of the utility model lock-catch type plate is that the sheet unit (100) has opposite two Long side and two short sides；A wherein long side for the sheet unit (100) and a wherein short side form the tenon (10), the plate Another long side of material unit (100) and another short side form the tongue-and-groove (50).

The utility model lock-catch type plate further improvement lies in that, the lower edge of the tenon (10) is equipped with a lower protruding block (18), on the inside of the minimum point of the lower protruding block (18) to the lower protruding block (18) one first inclined-plane is configured between peak；Institute The lower edge for stating tongue-and-groove (50) is equipped with a lower groove (58), and the lower groove (58) can house the lower protruding block (18), described recessed Slot (58) minimum point is formed with one second inclined-plane between the lock catch block (80) peak；First inclined-plane and described second Inclined-plane is all the linearly ramp structure in section.

The utility model makes it have following advantageous effect as a result of above technical scheme：

(1) the utility model in the upper limb of the tenon (10) and tongue-and-groove (50) by forming class structure and in tenon (10) with the lower edge Formation cross-section of tongue-and-groove (50) buckle structure at an acute angle, make between sheet unit can in the same plane, Via push and pressing operation, the lock-catch type plate loosened is not easy after realizing a kind of easily operated fastening, lock.

(2) the utility model is by being configured in the lower edge section of the tenon (10) and tongue-and-groove (50) with supporting block (20) Or the arc that support slot (60) cell wall (61) peak is the center of circle, make letter can be passed through between the sheet unit after assembling (100) Single turning operation, makes the arcing lower edge Relative sliding, to compress tongue-and-groove (50) upper and lower sides by supporting point of the center of circle So as to fulfill force extraction tenon (10) easily after overturning, sheet unit (100) is disassembled point for structure elastic deformation by a small margin From effectively avoiding the destruction that improper or buckle structure kills and causes buckle structure that can not restore that exerts a force.

Description of the drawings

Fig. 1 is the sheet unit first embodiment side elevational cross-section structure diagram of the utility model lock-catch type plate.

Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Figure 12 are the sheet unit first embodiment groups of the utility model lock-catch type plate Dress process cross-sectional view.

Fig. 7 is the partial structurtes enlarged diagram of the utility model Fig. 6.

Fig. 8, Fig. 9, Figure 10, Figure 11 be the utility model sheet unit first embodiment structure between horizontal distance mark Show schematic diagram.

Figure 13 is the dimensional structure diagram after the sheet unit first embodiment assembling of the utility model lock-catch type plate.

Figure 14 is the mounting and dismounting Operation Profile structure diagram of sheet unit first embodiment after the utility model assembling.

Figure 15, Figure 16, Figure 17, Figure 18, Figure 20 are the sheet unit second embodiment groups of the utility model lock-catch type plate Dress process cross-sectional view.

Figure 19 is the partial structurtes enlarged diagram of the utility model Figure 18.

Figure 21 is the dimensional structure diagram after the sheet unit second embodiment assembling of the utility model lock-catch type plate.

Figure 22, Figure 23 are the overturning mounting and dismounting Operation Profile knots of sheet unit second embodiment after the utility model assembling Structure schematic diagram.

Figure 24 is the utility model lock-catch type plate with the micromotion schematic diagram of flat-pushing operation assembled plate material unit.

Figure 25 is the utility model lock-catch type plate with the micromotion schematic diagram of turning operation assembling sheet unit.

Figure 26 is the structure diagram that the utility model lock-catch type plate assembles in a manner that herringbone is spelled.

Figure 27 is the structure diagram that the utility model lock-catch type plate is assembled with other connecting methods.

Figure 28 is the structure diagram that the utility model lock-catch type plate is assembled with I-shaped flooring mode.

Figure 29 is processing shape of the sheet unit of the utility model lock-catch type plate on carpenter's four side moulder planing machine platen State schematic diagram.

Figure 30 is another embodiment aspect schematic diagram of concave shaped space at the support slot of the utility model lock-catch type plate.

The correspondence of reference numeral and component is as follows：

Sheet unit 100；Sheet unit 100A；First plane 101；Second plane 102；First side 103；Second side 104；Tenon 10；Lateral surface 11；Top surface 12；Convex rank 13；Stop surface 14；Abut against face 15；First oblique surface 16；Second oblique surface 17；Lower protruding block 18；Inclined-plane 181；Inclined-plane 181A；First cambered surface 182；Plane 183；Supporting block 20；Lateral surface 21；Guide groove 30；Slot Wall 31；Lock buckling groove 40；Tongue-and-groove 50；Internal groove side wall 51；Upper cell wall 52；Raised line 53；Stop surface 54；Abut against face 55；Third oblique surface 56；4th oblique surface 57；Lower groove 58；Inclined-plane 581；Inclined-plane 581A；Second cambered surface 582；Plane 583；Support slot 60；Cell wall 61；Concave shaped space 62；Guide block 70；Lateral surface 71；Lock catch block 80；Guide surface 81；Backer 90 on carpenter's four side moulder planing machine platen； Stile datum level 91；Horizontal distance L1~L10.

Specific embodiment

For the benefit of to the understanding of the utility model, illustrate with reference to the accompanying drawings and embodiments.

It please refers to Fig.1 to Figure 29, the utility model provides a kind of lock-catch type plate；Wherein, Fig. 1 to Figure 14 is new for this practicality The sheet unit first embodiment of type lock-catch type plate；Figure 15 to Figure 23 is the sheet unit the of the utility model lock-catch type plate Two embodiments；Figure 24, Figure 25 are the installation operation schematic diagram of the utility model lock-catch type plate；Figure 26, Figure 27, Figure 28 are this realities With the structure diagram of Novel assembled mode；Figure 29 is the machining state schematic diagram of the utility model lock-catch type plate.

As shown in Fig. 1, Figure 13, the lock-catch type plate is to be assembled to be formed by rectangular sheet unit 100, each plate Material unit 100 has four sides of one first plane 101, one second plane 102 and connection two plane, the plank Unit 100 is respectively formed with tenon 10 and tongue-and-groove 50 at least two opposite sides.In the utility model embodiment, " cross sectional shape " refers to the section shape cut off along the first plane 101 and 102 vertical direction of the second plane with sheet unit 100 Shape.As shown in Figure 1 and Figure 2, it defines the sheet unit 100 and is formed with the side of the tenon 10 as first side 103, forming The side for having the tongue-and-groove 50 is second side 104；It is mutual by the tenon 10 and tongue-and-groove 50 between the sheet unit 100 It fastens.

Wherein, it is respectively formed on the first side 103 of the sheet unit 100 and second side 104 including the tenon The continuous concaveconvex structure of 10 or described tongue-and-grooves 50, and each side has two projective structures and two recessed structures.Specifically, such as Fig. 1 It is shown, form the tenon 10 protruded outwardly and supporting block 20, the tenon on the first side 103 of each sheet unit 100 10 upper limb is formed with class structure and is collectively formed with the lower edge of the supporting block 20 towards the guide groove 30 being recessed；The tenon Section lock buckling groove 40 at an acute angle is collectively formed between 10 lower edge and the first side 103.Each sheet unit 100 Second side 104 is formed towards the tongue-and-groove 50 that is recessed and support slot 60, the upper limb of the tongue-and-groove 50 be formed with class structure and with The guide block 70 protruded outwardly is collectively formed in the lower edge of the support slot 60；The lower edge of the tongue-and-groove 50 and the second side 104 Between section lock catch block 80 at an acute angle is collectively formed.

In the utility model embodiment, 11 phase of lateral surface of the lateral surface 21 of the supporting block 20 and the tenon 10 Than to flush or more protruding；The internal groove side wall 51 of the tongue-and-groove 50 can flush or more recessed compared with the cell wall 61 of the support slot 60 Enter, when being assembled to avoid sheet unit 100, the lateral surface 11 of tenon 10 is with the internal groove side wall 51 of tongue-and-groove 50 prior to supporting block 20 Lateral surface 21 contacts coincidence before offseting with the cell wall 61 of support slot 60, influences the bonding tightness between sheet unit 100.Institute The lower edge cross sectional shape for stating tenon 10 is using the peak of 20 lateral surface 21 of supporting block as the arc in the center of circle, the tongue-and-groove 50 Lower edge cross sectional shape be arc using the peak of the cell wall 61 of the support slot 60 as the center of circle.

Further, as shown in Figure 1, the lower edge of the tenon 10 is equipped with a lower protruding block 18,18 minimum point of lower protruding block Outside be configured to an inclined-plane 181, the inclined-plane 181 is connect with the lateral surface 11 of the tenon 10, specifically, the inclined-plane 181 can shape as inclined plane or cambered surface, and inside is configured to one first cambered surface 182, the cross sectional shape of first cambered surface 182 It is the arc using the peak of 20 lateral surface 21 of supporting block as the center of circle.The lower edge of the tongue-and-groove 50 is equipped with a lower groove 58, The lower groove 58 can house the lower protruding block 18, be configured to and 18 inclined-plane of lower protruding block on the inside of 58 minimum point of lower groove 181 inclined-planes 581 to match, the inclined-plane 581 are connect with the internal groove side wall 51 of the tongue-and-groove 50；Specifically, the inclined-plane 581 The inclined-plane 181 of the corresponding lower protruding block 18 forms the clinoplain to match or cambered surface, and 58 minimum point of lower groove is to described One second cambered surface 582 is formed between 80 peak of lock catch block, the cross sectional shape of second cambered surface 582 is with the support slot The peak of 60 cell wall 61 is the arc in the center of circle.

The arcing lower edge (the first cambered surface 182, the second cambered surface 582) of the tenon 10 and the tongue-and-groove 50 is making tenon 10 are easy to buckle into the tongue-and-groove 50, and when tenon 10 needs to exit tongue-and-groove 50 under the guiding of guide groove 30 and guide block 70, can Using the center of circle of the arcing lower edge as supporting point and the arcing lower edge Relative sliding of the tongue-and-groove 50, so as to not destroy lock catch block In the case of 80 acuter angles, tenon 10 is easily rotated to extraction under correct angle from tongue-and-groove 50.

In addition, in the utility model embodiment, the minimum point of the lower protruding block 18 to the 18 inside highest of lower protruding block The first linearly inclined-plane of section can also be configured between point；58 minimum point of lower groove to the lock catch block 80 most The shape formable that first inclined-plane is then corresponded between high point is the second inclined-plane.

As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Figure 12, the lock will be passed through between sheet unit 100 to be assembled Button block 80 guides the tenon 10 to be pushed into or by the rotation merging tongue-and-groove 50 and by the guide groove 30 with leading The class structure of block 70 guides the tenon 10 to compress 80 elastic deformation of lock catch block and buckles into the lock buckling groove 40 to be pressed It is interior；Between the sheet unit 100 and pass through the guide groove (30) contacted with the class structure of guide block (70) offset with fasten knot Close the arcing lower edge of the tenon 10 and tongue-and-groove 50；And by carrying the tenon between the sheet unit 100 after assembling 10 sheet unit 100 is overturn as supporting point using the peak of its 20 lateral surface 21 of supporting block and tilted, and compresses the tenon 10 The guide block 70 is with after 80 elastic deformation of lock catch block, enabling tenon 10 to recess the tongue-and-groove 50.

In the utility model embodiment, the guide groove 30, to work in coordination, is hung down with the guide block 70 in tenon 10 Straight strength pressing coordinates inclined first cambered surface, 182 and second cambered surface 582 during buckling into tongue-and-groove 50, guiding tenon 10 to It is lower and advance towards 50 internal groove side wall 51 of tongue-and-groove, so as to fulfill the assembly operation mode that buckles into tongue-and-groove 50 is pressed.As shown in Figure 1, The upper limb of the tenon 10 is formed with a top surface 12, and the top surface 12 is connect with the lateral surface 11 of tenon 10, the top surface 12 with 31 junction of cell wall of the guide groove 30 is equipped with convex rank 13, and the top surface of the convex rank 13 is configured to a stop surface 14, side forming Face 15 is abutted against for one；The upper limb of the tongue-and-groove 50 is formed with cell wall 52 on one, the outside of the upper cell wall 52 and the guide block 70 Face 71 connects, and the lower edge junction of the upper cell wall 52 and the guide block 70 is equipped with raised line 53, and the bottom surface of the raised line 53 shapes For a stop surface 54, side is configured to one and abuts against face 55.Wherein, the convex rank 13 and 10 lateral surface 11 of tenon and top surface The class structure of 10 upper limb of tenon is collectively formed at 12 handing-over angle ends；The raised line 53 and 70 lateral surface 71 of guide block And the upper cell wall 52 of tongue-and-groove 50 join collectively formed at the end of angle it is described to form the class structure of 50 upper limb of tongue-and-groove.

In the utility model embodiment, the class structure can be further formed chamfering so that tenon 10 be easier to by Guiding is buckled into tongue-and-groove 50 or the operation of rotation extraction tongue-and-groove 50 is easier to complete using the space that chamfering is formed.Specifically, It is punished with the stop surface 14 of 11 junction of lateral surface and the convex rank 13 with abutting against the handing-over of face 15 top surface 12 of the tenon 10 Other chamfering forms one first oblique surface 16 and one second oblique surface 17；The upper cell wall 52 of the tongue-and-groove 50 is outer with the guide block 70 The stop surface 54 of 71 junction of side and the raised line 53 forms a third oblique surface with abutting against 55 junction of face difference chamfering 56 and one the 4th oblique surface 57.Whereby, as shown in figure 5, the utility model sheet unit 100 is placed in the mistake of tongue-and-groove 50 in tenon 10 Cheng Zhong by the way that the tenon 10 of about half length first is placed in tongue-and-groove 50, makes lateral surface 11 and abuts against after face 55 first resists, then Pressure makes tenon 10 pass through the first oblique surface 16, the second oblique surface 17 and third oblique surface 56,57 isoclinic face angle of the 4th oblique surface Degree mutually guiding, realization make tenon 10 be easier to be pressed in button to tongue-and-groove 50.

In the utility model embodiment, as shown in Fig. 1, Fig. 8,18 minimum point of lower protruding block is outer with the tenon 10 The horizontal distance L1 that 11 peak of side is extended vertically between line is less than the peak of the lock catch block 80 and the top of the raised line 53 The horizontal distance L2 (L1 ＜ L2) between line is extended vertically by 55 minimum point of face；As shown in figure 9,18 minimum point of lower protruding block and institute State tenon 10 11 peak of lateral surface extend vertically horizontal distance L1 between line be more than 58 minimum point of lower groove with it is described 55 minimum point of face that abuts against of raised line 53 extends vertically horizontal distance L3 (L1 ＞ L3) between line.

When the sheet unit 100 with tenon 10 continues to push to the sheet unit 100 with tongue-and-groove 50, tenon 10 Lower protruding block 18 fall into the lower groove 58 of another 100 tongue-and-groove 50 of sheet unit, allow the first cambered surface of 10 lower protruding block 18 of tenon 182 be in contact with the second cambered surface 582 of another 100 tongue-and-groove of sheet unit, 50 lower groove 50, while the convex rank 13 abuts against face 15 It can act against on the lateral surface 71 of the guide block 70 of another sheet unit 100 (as shown in Figure 5), at this time the plank list with tenon 10 Member 100 can not continue to push another sheet unit 100 with tongue-and-groove 50 in same plane；Also namely based on it is above-mentioned it is horizontal away from Restriction from L1 ＜ L2, sheet unit 100 of the utility model with tenon 10 push the sheet unit 100 with tongue-and-groove 50 to When, when on the lateral surface 71 for abutting against the guide block 70 that face 15 acts against another sheet unit 100 of convex rank 13, tenon 10 Lower protruding block 18 has been fallen into the 58 top range of lower groove of another 100 tongue-and-groove 50 of sheet unit (as shown in Fig. 5), this such reality The fastening between sheet unit 100 is carried out with the novel mode that can adopt pressing.

When sheet unit 100 of the utility model with tenon 10 pushes the sheet unit 100 with tongue-and-groove 50 to, when this When abutting against face 15 and acting against on the lateral surface 71 of another 100 guide block 70 of sheet unit of convex rank 13, the lower protruding block 18 of tenon 10 It has fallen into the 58 top range of lower groove of another 100 tongue-and-groove 50 of sheet unit (as shown in Figure 5), based on above-mentioned horizontal distance L1 The restriction of ＞ L3,18 minimum point of lower protruding block of the tenon 10 not yet touch 50 lower groove of tongue-and-groove, 58 minimum point, this such practicality is new Type can adopt the mode of pressing to carry out the fastening between sheet unit 100.

In the utility model embodiment, as shown in Fig. 8, Figure 10, the cell wall 31 of the guide groove 30 and the tenon 10 The horizontal distance L4 that 11 peak of lateral surface is extended vertically between line is more than the lateral surface 71 of the guide block 70 and the raised line 53 It abuts against 55 minimum point of face and extends vertically horizontal distance L5 (L4 ＞ L5) between line；As shown in figure 11, the cell wall 31 of the guide groove 30 Extending vertically horizontal distance L4 between line with 11 peak of lateral surface of the tenon 10 can be greater than, equal to or less than described The lateral surface 71 of guide block 70 and 51 peak of internal groove side wall of the tongue-and-groove 50 extend vertically between line horizontal distance L6 (L4 ＞ L6, L4=L6 or L4 ＜ L6).It is to be understood that in the utility model embodiment, the tongue-and-groove 50 between horizontal distance L4 and L6 With the depth between guide groove 30, close demand can be mutually fastened according to two sheet units 100 and adjusts the depth, so as to influence it is horizontal away from It is big from the distance between L4 and L6 or small.

In the utility model embodiment, as shown in Figure 1 and Figure 2, lateral surface 21 and the plank of the supporting block 20 The first side 103 of unit 100 extend vertically horizontal distance L7 between line be more than the lateral surface 21 of the supporting block 20 with it is described The cell wall 31 of guide groove 30 extends vertically the horizontal distance L8 (L7 ＞ L8) between line；The cell wall 61 of the support slot 60 and the plank The cell wall 61 that the horizontal distance L9 that the second side 104 of unit 100 is extended vertically between line is more than the support slot 60 is led with described The lateral surface 71 of block 70 extends vertically the horizontal distance L10 (L9 ＞ L10) between line.

As shown in figure 4, have between the peak of the lock catch block 80 and the second side 104 of the sheet unit 100 One inclined guide surface 81 connects.The guide surface 81 in the sheet unit 100 with tenon 10 towards with tongue-and-groove 50 Sheet unit 100 move when, contacted with the inclined-plane 181 of 10 lower edge of tenon and then the inclined-plane 181 of tenon 10 driven to draw with described 81 Relative sliding of guide face makes tenon 10 move up propulsion and buckles into tongue-and-groove 50.

As shown in figure 14, at the angle end that the supporting block 20 is formed in the top of its lateral surface 21 and bottom and the branch Support slot 60 can be set as chamfering at the top corner end of its cell wall 61, so that the sheet unit 100 with tenon 10 can be more convenient for Overturning is disassembled.In addition, in the utility model embodiment, the cell wall 61 of the support slot 60 is equipped with 70 junction of guide block One concave shaped space 62；The concave shaped space 62 can further deepen to depth as shown in figure 30, and the depth can be adjusted according to need It is whole, preferably, the depth can deepen to 8mm long depth.

The concrete structure of the utility model lock-catch type plate is explained above, below please refer to Fig. 2 to Fig. 6, Fig. 8 To Figure 14, illustrate that the peace of the utility model lock-catch type plate tears method open.

The utility model method includes lock-catch type plate number of assembling steps and disassembles step；Wherein, the number of assembling steps includes：

Such as Fig. 2 to Fig. 4, in the same plane, by the tenon 10 of a wherein sheet unit 100 towards another sheet unit The 100 translation push of tongue-and-groove 50, so that 10 front end of tenon of a wherein sheet unit 100 is guided by the lock catch block 80 It moves up into the tongue-and-groove 50 of another sheet unit 100；

The person of connecing, as shown in figure 5, force pressing from top to bottom carries the sheet unit 100 of tenon 10, to enable its tenon 10 logical The class structure for crossing the guide groove 30 and the guide block 70 guides, and as shown in Figure 6, Figure 7, is compressed during tongue-and-groove 50 is buckled into 80 elastic deformation of lock catch block, so as to be directed to buckle into inside the tongue-and-groove 50；

As shown in Figure 12 and Figure 13, when the wherein convex rank 13 of a sheet unit 100 abut against face 15 with it is described another The raised line 53 of sheet unit 100 abuts against the contact of face 55 when offseting, and the tenon 10 and tongue-and-groove 50 of two sheet unit 100 are tight Consolidation is closed, and completes the assembling between sheet unit 100.

As shown in figure 14, the sheet unit 100 assembled in lock-catch type plate to be torn open with its tenon 10 is defined as the first plate Material unit 100a, with the sheet unit 100 of its tongue-and-groove 50 assembling for the second sheet unit 100b；Wherein, the method includes locks Button plank disassembles step, and the step of disassembling includes：

The first sheet unit 100a is flipped up sticking up using the peak of its 20 lateral surface 21 of supporting block as supporting point It rises, draws the tenon 10 and compress 80 elastic deformation of the guide block 70 and the lock catch block；

The tenon 10 of first sheet unit 100a of the state of tilting is rotated from the tongue-and-groove 50 of the second sheet unit 100b Extraction, until the tenon 10 of the first sheet unit 100a exits the tongue-and-groove 50 of the second sheet unit 100b completely, it is complete Into disassembling between sheet unit 100.

As shown in Figure 15 to Figure 23, the sheet unit second embodiment of the utility model lock-catch type plate is shown.The lock Button plank is to be assembled to be formed by rectangular sheet unit 100A, each sheet unit 100A have one first plane 101, Four sides of one second plane 102 and connection two plane, the sheet unit 100 is at least two opposite sides On be respectively formed with tenon 10 and tongue-and-groove 50.As shown in figure 15, it defines the sheet unit 100A and is formed with the tenon 10 Side is first side 103, and the side for being formed with the tongue-and-groove 50 is second side 104；Lead between the sheet unit 100A It crosses the tenon 10 and tongue-and-groove 50 mutually fastens.

The first embodiment of the sheet unit of the utility model lock-catch type plate and the architectural difference of second embodiment only exist In 10 lower edge of tenon and the structural form of 50 lower edge of tongue-and-groove.Specifically, 10 lower protruding block of tenon of the sheet unit 100A An inclined-plane 181A is configured on the outside of 18 minimum points, and has one between the inclined-plane 181A and the lateral surface 11 of the tenon 10 Plane 183 connects；It is configured on the inside of 50 lower groove of tongue-and-groove, 58 minimum point of the sheet unit 100A oblique with the lower protruding block 18 The inclined-plane 581A that face 181A matches between the inclined-plane 581A and the internal groove side wall 51 of the tongue-and-groove 50 there is a plane 583 to connect It connects.In the utility model second embodiment, the lower edge of the tenon 10 is common by the inclined-plane 181A and the plane 183 It is formed towards the recessed concave inward structure of tenon 10, the lower edge of the tongue-and-groove 50 is total to by the inclined-plane 581A and the plane 583 The outer male structure protruded towards tongue-and-groove 50 is formed together, and after tenon 10 is enabled to be inserted into tongue-and-groove 50, the lower protruding block 18 of the tenon 10 is accommodating In the lower groove 58 of the tongue-and-groove 50, and the concave inward structure is matched with the outer male structure bumps.

As shown in Figure 15, Figure 16, Figure 17, Figure 18 and Figure 19, the peace of the utility model lock-catch type plate second embodiment is torn open Method includes lock-catch type plate number of assembling steps and disassembles step；Wherein, the number of assembling steps includes：

Such as Figure 15 to Figure 17, in the same plane, by the wherein tenon 10 of a sheet unit 100A towards another plank list The translation push of tongue-and-groove 50 of first 100A, so that wherein 10 front end of tenon of a sheet unit 100A is by the lock catch block 80 It is moved up into guiding in the tongue-and-groove 50 of another sheet unit 100A；

The person of connecing, as shown in figure 18, force pressing from top to bottom carry the sheet unit 100A of tenon 10, to enable its tenon 10 It is guided by the class structure of the guide groove 30 and the guide block 70, as shown in Figure 19, Figure 20, during tongue-and-groove 50 is buckled into 80 elastic deformation of lock catch block is compressed, so as to be directed to buckle into inside the tongue-and-groove 50；

As shown in Figure 22, Figure 23, the sheet unit assembled in lock-catch type plate to be torn open using its tenon 10 is defined as first Sheet unit 100a, using the sheet unit of its tongue-and-groove 50 assembling as the second sheet unit 100b；When a wherein sheet unit 20 lateral surface 21 of supporting block of 100a is contacted with 60 cell wall 61 of support slot of another sheet unit 100b when offseting, and described two The tenon 10 of sheet unit 100a, 100b are combined with tongue-and-groove 50 by fastening, complete the assembling between sheet unit 100A.Wherein, The method includes lock-catch type plates to disassemble step, and the step of disassembling includes：

The first sheet unit 100a is flipped up sticking up using the peak of its 20 lateral surface 21 of supporting block as supporting point It rises, draws the tenon 10 and compress 80 elastic deformation of the guide block 70 and the lock catch block；

The tenon 10 of first sheet unit 100a of the state of tilting is rotated from the tongue-and-groove 50 of the second sheet unit 100b Extraction, until the tenon 10 of the first sheet unit 100a exits the tongue-and-groove 50 of the second sheet unit 100b completely, it is complete Into disassembling between sheet unit 100.

Further, the sheet unit of the utility model lock-catch type plate is by aforementioned structure, can be with as shown in Figure 24 The mode of push is translated, the tenon 10 of a wherein sheet unit 100 is buckled into the tongue-and-groove 50 of another sheet unit 100, is realized Assembling between sheet unit 100；Simultaneously also can be as shown in figure 25, after overturning to appropriate angle, make a wherein plank The tenon 10 of unit 100 can compress lock catch block 80 a little after elastic deformation, directly buckle into the tongue-and-groove of another sheet unit 100 In 50, the similary assembling realized between sheet unit 100；Enable the utility model lock-catch type plate that there is the adaptability of bigger Meet the different assembling demand in construction site.

Specifically, the sheet unit 100 of the utility model has opposite two long sides and two short sides；The sheet unit 100 can be that two long sides all form the tenon 10, and two short sides all form the tongue-and-groove 50；Alternatively, the sheet unit 100 Can be a wherein long side and a wherein short side forms the tenon 10, another long side and another short side form the tongue-and-groove 50. As shown in Figure 26, Figure 27, Figure 28, the application passes through the long and short side of aforementioned sheet unit 100 and tenon 10, the configuration of tongue-and-groove 50 Form, so as to which such as the herringbone of Figure 26 spells assembling mode, the assembling mode vertical in length and breadth of such as Figure 27 or the I-shaped figure spelling such as Figure 28 Fill assembling mode.

In addition, as shown in figure 29, illustrate by taking sheet unit 100A as an example, the utility model lock-catch type plate passes through in tenon 10 tops form supporting block 20, and the lateral surface 11 of tenon 10 is made to be flushed in vertical direction with the lateral surface 21 of supporting block 20, Make the utility model sheet unit 100A that can have when being processed on the backer 90 on carpenter's four side moulder planing machine platen Two contact surfaces are placed on carpenter's four side moulder planing machine platen on the stile datum level 91 of backer 90, play stable sheet unit The straight line of 100A more large contact surfaces conveys accurate elaboration, avoids sheet unit 100A because processing against carpenter's four side moulder planer The area of the stile datum level 91 of backer 90 is very little on workbench, formed tenon 10 straight line side camber or out-of-flatness and influence Relative side processes the problem of precision misalignment.

In the utility model embodiment, on the side of each sheet unit 100, can only be formed a tenon 10 or One tongue-and-groove 50, but not limited to this, the sheet unit 100 can also be formed simultaneously a tenon 10 and one on same side The structural form of a tongue-and-groove 50, to form a kind of lock-catch type plate that point is fastened with multiple tongue-and-grooves lock, so that the lock of plank It buckles conjunction and increases fastening dynamics.

To sum up, the utility model utilizes the class structure for being formed in tenon 10 and 50 upper limb of tongue-and-groove by previous embodiment (guide groove 30, guide block 70) and it is formed in tenon 10 and 50 lower edge of tongue-and-groove and section buckle structure (lock buckling groove 40, lock at an acute angle Button block 80), make to grasp via push and pressing operation or insertion and rotation in the same plane between sheet unit 100 Make, the lock-catch type plate loosened is not easy after realizing a kind of easily operated fastening, lock.In addition, the utility model passes through by described in The lower edge section of tenon 10 and tongue-and-groove 50 be configured to using 20 lateral surface 21 of the supporting block or 60 cell wall of support slot, 61 peak as The arc in the center of circle, making can be by simple turning operation, using the center of circle as supporting point between the sheet unit after assembling 100 Make the arcing lower edge (the first cambered surface 182, the second cambered surface 582) Relative sliding, to compress the structure of 50 upper and lower sides of tongue-and-groove (lock Block 80, guide block 70) carry out elastic deformation by a small margin after, you can realize to exert a force easily after overturning and tenon 10 recessed into tongue-and-groove 50, Sheet unit 100 is made to disassemble separation, the improper or buckle structure that effectively avoids exerting a force kills that cause to disassemble rear catch structure can not The destruction of recovery.

The utility model is described in detail above in association with accompanying drawings and embodiments, those skilled in the art can Many variations example is made to the utility model according to the above description.Thus, certain details in embodiment should not be formed to this reality With novel restriction, the utility model will be using the range that the appended claims define as the scope of protection of the utility model.

Claims (13)

1. a kind of lock-catch type plate, the plank is formed by rectangular sheet unit (100) assembling, each sheet unit (100) tool is there are four side, is respectively formed with tenon (10) and tongue-and-groove (50) at least two opposite sides, described in definition The side that sheet unit (100) is formed with the tenon (10) is first side (103), is formed with the side of the tongue-and-groove (50) For second side (104)；It is mutually fastened by the tenon (10) and tongue-and-groove (50) between the sheet unit (100)；It is special Sign is：

The first side (103) of each sheet unit (100) forms the tenon (10) protruded outwardly and supporting block (20), described The upper limb of tenon (10) is formed with class structure and is collectively formed with the lower edge of the supporting block (20) towards the guide groove being recessed (30)；Section lock buckling groove at an acute angle (40) is collectively formed between the lower edge of the tenon (10) and the first side (103)； Wherein, the lateral surface (21) of the supporting block (20) is to flush with the lateral surface (11) of the tenon (10), the tenon (10) Lower edge cross sectional shape be arc using the peak of the supporting block (20) lateral surface (21) as the center of circle；

The second side (104) of each sheet unit (100) is formed towards the tongue-and-groove (50) and support slot (60) being recessed, described The upper limb of tongue-and-groove (50) is formed with class structure and the guide block protruded outwardly is collectively formed with the lower edge of the support slot (60) (70)；Section lock catch block at an acute angle (80) is collectively formed between the lower edge of the tongue-and-groove (50) and the second side (104)； Wherein, the lower edge cross sectional shape of the tongue-and-groove (50) is the arc using the peak of the cell wall of the support slot (60) (61) as the center of circle Shape；

Whereby, the tenon (10) is guided to be pushed button by the lock catch block (80) between sheet unit to be assembled (100) Enter or the tongue-and-groove (50) is placed in and by described in the guiding of the class structure of the guide groove (30) and guide block (70) by rotation Tenon (10) compresses the lock catch block (80) elastic deformation and is buckled into the lock buckling groove (40) with being pressed；The sheet unit (100) contacted between with the class structure of guide block (70) by the guide groove (30) offset with fasten with reference to the tenon (10) with The arcing lower edge of tongue-and-groove (50)；And by carrying the plank list of the tenon (10) between the sheet unit (100) after assembling First (100) are overturn as supporting point using the peak of its supporting block (20) lateral surface (21) and tilted, and the tenon (10) is made to compress institute Guide block (70) is stated to retreat from the tongue-and-groove (50) with the lock catch block (80) elastic deformation.

2. lock-catch type plate according to claim 1, it is characterised in that：

The lower edge of the tenon (10) is equipped with a lower protruding block (18), and inside is configured to one first cambered surface (182), first cambered surface (182) cross sectional shape is the arc using the peak of the supporting block (20) lateral surface (21) as the center of circle；

The lower edge of the tongue-and-groove (50) is equipped with a lower groove (58), and the lower groove (58) can house the lower protruding block (18), institute Lower groove (58) minimum point is stated to being formed with one second cambered surface (582), second arc between the lock catch block (80) peak The cross sectional shape in face (582) is the arc using the peak of the cell wall of the support slot (60) (61) as the center of circle.

3. lock-catch type plate according to claim 2, it is characterised in that：

An inclined-plane (181), the inclined-plane (181) and the tenon (10) are configured on the outside of lower protruding block (18) minimum point Lateral surface (11) connects；

The inclined-plane (581) to match with the lower protruding block (18) inclined-plane (181) is configured on the inside of lower groove (58) minimum point, The inclined-plane (581) connect with the internal groove side wall (51) of the tongue-and-groove (50).

4. lock-catch type plate according to claim 2, it is characterised in that：

An inclined-plane (181A), the inclined-plane (181A) and the tenon (10) are configured on the outside of lower protruding block (18) minimum point Lateral surface (11) between have a plane (183) connection；

The inclined-plane to match with the lower protruding block (18) inclined-plane (181A) is configured on the inside of lower groove (58) minimum point (581A) between the inclined-plane (581A) and the internal groove side wall (51) of the tongue-and-groove (50) there is a plane (583) to connect.

5. lock-catch type plate according to claim 2, it is characterised in that：

The upper limb of the tenon (10) is formed with a top surface (12), and the top surface (12) and the cell wall (31) of the guide groove (30) are handed over It meets place and is equipped with convex rank (13), the top surface of the convex rank (13) is configured to a stop surface (14), and side is configured to one and abuts against face (15)； The top surface (12) of the tenon (10) is with the stop surface (14) of lateral surface (11) junction and the convex rank (13) with abutting against face (15) difference chamfering in junction forms one first oblique surface (16) and one second oblique surface (17)；

The upper limb of the tongue-and-groove (50) is formed with cell wall on one (52), and the upper cell wall (52) and the lower edge of the guide block (70) are handed over It meets place and is equipped with raised line (53), the bottom surface of the raised line (53) is configured to a stop surface (54), and side is configured to one and abuts against face (55)； The upper cell wall (52) of the tongue-and-groove (50) and lateral surface (71) junction of the guide block (70) and the card of the raised line (53) Face (54) processed forms a third oblique surface (56) and one the 4th oblique surface (57) with abutting against face (55) junction difference chamfering.

6. lock-catch type plate according to claim 5, it is characterised in that：

Lateral surface (11) peak of lower protruding block (18) minimum point and the tenon (10) extend vertically between line it is horizontal away from It is extended vertically between line less than the peak of the lock catch block (80) and face (55) minimum point that abuts against of the raised line (53) from (L1) Horizontal distance (L2)；

Lateral surface (11) peak of lower protruding block (18) minimum point and the tenon (10) extend vertically between line it is horizontal away from It is extended vertically between line more than face (55) minimum point that abuts against of the lower groove (58) minimum point and the raised line (53) from (L1) Horizontal distance (L3).

7. lock-catch type plate according to claim 5, it is characterised in that：

The cell wall (31) of the guide groove (30) and lateral surface (11) peak of the tenon (10) extend vertically the level between line Distance (L4) is extended vertically more than the lateral surface (71) of the guide block (70) and face (55) minimum point that abuts against of the raised line (53) Horizontal distance (L5) between line；

The cell wall (31) of the guide groove (30) and lateral surface (11) peak of the tenon (10) extend vertically the level between line Distance (L4) can greater than, equal to or less than the guide block (70) lateral surface (71) and the tongue-and-groove (50) internal groove side wall (51) most Horizontal distance (L6) between the straight extension line of high point weight.

8. lock-catch type plate according to claim 5, it is characterised in that：

The lateral surface (21) of the supporting block (20) and the first side (103) of the sheet unit (100) are extended vertically between line Horizontal distance (L7) extended vertically more than the lateral surface (21) of the supporting block (20) and the cell wall (31) of the guide groove (30) Horizontal distance (L8) between line；

The cell wall (61) of the support slot (60) and the second side (104) of the sheet unit (100) are extended vertically between line Horizontal distance (L9) extends vertically line more than the cell wall (61) of the support slot (60) and the lateral surface (71) of the guide block (70) Between horizontal distance (L10).

9. lock-catch type plate according to any one of claim 1 to 5, it is characterised in that：

It is inclined with one between the peak of the lock catch block (80) and the second side (104) of the sheet unit (100) Guide surface (81) connects.

10. lock-catch type plate according to any one of claim 1 to 5, it is characterised in that：

The supporting block (20) is configured to chamfering at the top corner end of its lateral surface (21)；The support slot (60) is in its cell wall (61) chamfering is configured at top corner end.

11. lock-catch type plate according to any one of claim 1 to 8, it is characterised in that：

The sheet unit (100) has opposite two long sides and two short sides；The long side of the sheet unit (100) forms described Tenon (10), the short side of the sheet unit (100) form the tongue-and-groove (50).

12. lock-catch type plate according to any one of claim 1 to 8, it is characterised in that：

The sheet unit (100) has opposite two long sides and two short sides；A wherein long side for the sheet unit (100) and A wherein short side forms the tenon (10), and another long side of the sheet unit (100) and another short side form the tongue-and-groove (50)。

13. lock-catch type plate according to claim 1, it is characterised in that：

The lower edge of the tenon (10) is equipped with a lower protruding block (18), the minimum point of the lower protruding block (18) to the lower protruding block (18) One first inclined-plane is configured between the peak of inside；

The lower edge of the tongue-and-groove (50) is equipped with a lower groove (58), and the lower groove (58) can house the lower protruding block (18), institute It states lower groove (58) minimum point and is formed with one second inclined-plane between the lock catch block (80) peak；

First inclined-plane and second inclined-plane are all the linearly ramp structure in section.