CN215926560U

CN215926560U - Anti-deformation SPC lock floor structure

Info

Publication number: CN215926560U
Application number: CN202120539092.6U
Authority: CN
Inventors: 陶纯鑫; 单永根; 梁星宇; 孙国龙; 石红星; 吴士彬; 吕云青
Original assignee: Zhejiang Changxing Senda Bamboo & Wood Products Co ltd
Current assignee: Zhejiang Changxing Senda Bamboo & Wood Products Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2022-03-01
Anticipated expiration: 2031-03-16

Abstract

The utility model discloses an anti-deformation SPC lock floor structure, and aims to provide an anti-deformation SPC lock floor structure with firm inverted tenon splicing. The floor comprises a first floor and a second floor, wherein a male tenon is fixed on the first floor, a female tenon matched with the male tenon is arranged on the second floor, the first floor is connected with the second floor through the matching of the male tenon and the female tenon, a first compression block chute is arranged on the inner side wall of the female tenon, the first compression block chute is connected with a first compression block in a sliding mode, a first compression block pushing device and a locking device are arranged inside the second floor, and the first compression block pushing device and the locking device are both connected with the first compression block. The utility model has the beneficial effects that: the firmness of the inverted tenon splicing is improved; the structure is compact and the continuity is good; simple structure, convenient installation and fixation and good stability.

Description

Anti-deformation SPC lock floor structure

Technical Field

The utility model relates to the technical field of floors, in particular to an anti-deformation SPC lock floor structure.

Background

The SPC lock floor consists of a thickened wear-resistant layer, a UV layer, a color film texture layer and a base material layer. The European and American countries call the floor RVP (rigid vinyl plant), rigid plastic floor. The base material is a composite board which is prepared by uniformly stirring stone powder and a thermoplastic polymer material and then extruding the mixture at high temperature, and simultaneously has the performance and characteristics of wood and plastic, so that the strength and toughness of the floor are ensured.

The locking technology is that the floor blocks are connected in a mutually meshed mode through the inverted tenons on the periphery of the floor, so that the floor blocks are assembled into an integral structural form. The locking technology realizes self-connection without any external accessory, and is an advanced floor structure in the industry. Especially after the rise of geothermal heat, the industry has gradually recognized, through trial and error: the latch floor can be directly laid on a floor heater to ensure the heat conduction effect of the floor heater; meanwhile, the lock catch can ensure the stability of the floor.

The back tenon on the existing lock catch floor is not firmly spliced, and after long-time use, the spliced part of the back tenon is easy to deform to generate obvious gaps, so that squeak noise can be generated when people step on the floor, and the normal use of the floor is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides an anti-deformation SPC lock floor structure with firm reverse tenon splicing, aiming at overcoming the defect that the reverse tenon splicing is not firm enough in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the anti-deformation SPC lock catch floor structure comprises a first floor and a second floor, wherein a male tenon is fixed on the first floor, a female tenon matched with the male tenon is arranged on the second floor, the first floor is connected with the second floor through the matching of the male tenon and the female tenon, a first compression block chute is arranged on the inner side wall of the female tenon, a first compression block is slidably connected inside the first compression block chute, a first compression block pushing device and a locking device are arranged inside the second floor, and the first compression block pushing device and the locking device are both connected with the first compression block.

Insert the female tenon on the floor two through the public tenon on the floor one and splice the installation, after the concatenation is good, come control compact heap one towards public tenon through a compact heap thrust unit and be close to press public tenon firmly and fix on the inside wall of female tenon, at last rethread locking means comes to carry out the locking to compact heap one, in order to improve the fastness of falling the tenon concatenation.

As preferred, a compact heap thrust unit includes the dwang, the one end of dwang is installed on the bottom surface of compact heap spout one and is connected rather than rotating, be equipped with the external screw thread on the lateral surface of the dwang other end, be equipped with on the compact heap one with external screw thread assorted internal thread hole, the dwang passes through the cooperation and a compact heap threaded connection in external screw thread and internal thread hole, be equipped with spacing spout on the lateral wall of compact heap spout one, be fixed with on the compact heap one with spacing spout assorted limit slide, a cooperation and a compact heap spout sliding connection that the compact heap passes through limit slide and spacing spout. When the dwang rotated, under the effect of screw thread, the compact heap took place axial displacement for a moment relatively the dwang, was close to the tenon. Through the design of the limiting sliding block and the limiting sliding groove, the first pressing block slides in the first pressing block sliding groove to achieve the guiding and limiting effects.

Preferably, a first floor cavity is arranged inside the second floor, the first floor cavity is arranged on the side surface of the female tenon, a first connecting opening is arranged between the first floor cavity and the female tenon, a gear is arranged in the first floor cavity, the edge of the gear is arranged in the female tenon through the first connecting opening, the surface of the tenon is provided with a rack meshed with the gear, the bottom surface of the first compressing block chute is provided with a rotating rod mounting groove matched with the rotating rod, one end of the rotating rod is arranged in the rotating rod mounting groove and is rotationally connected with the rotating rod mounting groove, an annular chamber is arranged on the inner side wall of the rotating rod mounting groove, the annular chamber is arranged on the side surface of the first floor cavity, a second connecting opening is arranged between the annular chamber and the first floor cavity, the rotating rod is provided with a spiral part matched with the gear, the edge of the gear is arranged in the annular cavity chamber through the second connecting opening and is meshed with the spiral part on the rotating rod. In the process that the male tenon is inserted into the female tenon, the rack on the male tenon is meshed with the gear to drive the gear to rotate, and the purpose that the gear drives the rotating rod to rotate is achieved through a worm and gear structure formed by the spiral part on the rotating rod and the gear. Compact structure and good continuity.

Preferably, a limiting baffle is fixed on the rotating rod and is respectively arranged on the bottom surface of the annular chamber and the top surface of the annular chamber. Through the design of the limiting baffle, the limiting function is achieved on the rotating rod.

Preferably, a rotary mounting column is fixed on the gear, rotary mounting grooves matched with two ends of the rotary mounting column are respectively formed in the side walls of two opposite sides of the first floor cavity, and the gear is mounted in the first floor cavity through the cooperation of the rotary mounting column and the rotary mounting grooves and is rotatably connected with the first floor cavity. Simple structure, convenient installation and fixation and good stability.

Preferably, the end face of the rotating mounting column is provided with a mounting column through hole, the locking device comprises an inner ratchet wheel arranged on the inner side wall of the mounting column through hole, a fixed block is arranged inside the mounting column through hole and fixed on the side wall of the first floor cavity, the fixed block is provided with a pawl, and the inner ratchet wheel is meshed with the pawl. The pawl is used for clamping an inner ratchet wheel on the gear, so that the gear can only rotate in one direction and cannot rotate, and the gear is used for clamping the rack, so that the aim of locking the tenon is fulfilled, and the tenon is prevented from retreating; meanwhile, the rotating rod is locked, the pressing block for pressing the male tenon is prevented from loosening, and the firmness of inverted tenon splicing is ensured.

Preferably, the inside of fixed block is equipped with the fixed block cavity, install the rotation post in the fixed block cavity, rotation post and fixed block cavity rotate to be connected and junction between them installs torsion spring, be equipped with the side opening on the lateral wall of fixed block cavity, one side of pawl is fixed on rotating the post, the opposite side of pawl passes through the side opening and meshes with the internal ratchet mutually, be fixed with spacing turn-ups on the side opening, pawl and spacing turn-ups contact. The pawl is pressed on the inner ratchet wheel under the elastic force of the torsion spring to be meshed with the inner ratchet wheel. When the gear rotates forwards under the driving of the rack, the pawl cannot clamp the inner ratchet wheel, and the gear can rotate smoothly; when the gear is required to rotate reversely, the pawl can block the inner ratchet wheel, so that the whole gear is locked and cannot rotate reversely.

Preferably, the inner side wall of the female tenon is provided with a second compression block sliding groove, the first compression block sliding groove and the second compression block sliding groove are respectively arranged on the two adjacent inner side walls of the female tenon, the second compression block sliding groove is connected with a second compression block in a sliding mode, a second compression block pushing device is arranged inside the second floor, and the second compression block pushing device is connected with the second compression block. After the male tenon and the female tenon are spliced, the second pressing block is controlled to approach the male tenon through the second pressing block pushing device, and the male tenon is firmly pressed on the other inner side wall of the female tenon to be fixed, so that the splicing firmness of the inverted tenon is further improved.

Preferably, the floor cavity II is arranged in the floor cavity II, the floor cavity II is communicated with the female tenon through a pressing block sliding groove II, a first guide block is fixed on the pressing block II, the first guide block is arranged in the floor cavity II, a second guide block is slidably connected in the floor cavity II, a first inclined plane and a second inclined plane which are matched with each other are respectively arranged on the first guide block and the second guide block, a bottom sliding groove is formed in the bottom surface of the female tenon, the bottom sliding groove is arranged on the side surface of the floor cavity II, the inner portion of the side surface of the floor cavity II is slidably connected with a movable block, the side wall of the bottom sliding groove is communicated with the side wall of the floor cavity II through a connecting sliding groove, a connecting block is slidably connected in the connecting sliding groove, and one end of the connecting block is respectively fixed on the movable block and the second guide block. In a natural state, a part of the movable block is exposed out of the bottom sliding groove. When the male tenon is inserted into the female tenon, the movable block is pushed to move relatively in the bottom sliding groove, and under the transmission action of the connecting block, the guide block II is driven to move synchronously in the floor cavity II; and then under the pressure transmission action of the first inclined plane and the second inclined plane, the second pressing block on the first guide block is driven to move in the second pressing block sliding groove and approach towards the male tenon, so that the purpose of firmly pressing the male tenon on the other inner side wall of the female tenon for fixing is achieved, and the firmness of inverted tenon splicing is further improved.

Preferably, the width of the cross section of the second pressing block is smaller than that of the first guide block, a limiting spring is sleeved on the second pressing block, one end of the limiting spring is fixed on the first guide block, and the other end of the limiting spring is fixed on the inner side wall of the second floor cavity. Under the natural state, through the elastic force effect of the first guide block of the limiting spring, the second compression block is contracted inside the second compression block sliding groove, and the situation that the second compression block is clamped by the male tenon in the process of inserting the female tenon is prevented.

The utility model has the beneficial effects that: the firmness of the inverted tenon splicing is improved; the structure is compact and the continuity is good; simple structure, convenient installation and fixation and good stability.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an internal structural view of FIG. 1;

FIG. 3 is a schematic structural view of the gear portion of FIG. 2;

FIG. 4 is an enlarged view at C in FIG. 2;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 1;

fig. 6 is a cross-sectional view at B-B in fig. 1.

In the figure: 1. the first floor, the second floor, the 3 male tenon, the 4 floor cavity I, the 5 gear, the 6 rack, the 7 female tenon, the 8 rotating installation column, the 9 installation column through hole, the 10 internal ratchet wheel, the 11 fixed block, the 12 rotating column, the 13 fixed block cavity, the 14 side opening, the 15 pawl, the 16 limit flange, the 17 rotating rod installation groove, the 18 rotating rod, the 19 limit baffle, the 20 annular chamber, the 21 spiral part, the 22 limit sliding groove, the 23 limit sliding block, the 24 compressing block sliding groove I, the 26 compressing block I, the 27 internal thread hole, the 28 external thread, the 29 rotating installation groove, the 30 torsion spring, the 31 compressing block II, the 32 compressing block sliding groove II, the 33 limit spring, the 34 guide block I, 35. and a second guide block 36, a second floor cavity 37, a connecting block 38, a connecting chute 39, a bottom chute 40 and a movable block.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

In the embodiment shown in fig. 1 and 2, a deformation-resistant SPC lock floor structure includes a first floor board 1 and a second floor board 2, a first tongue 3 is fixed on the first floor board 1, a second tongue 7 matched with the first tongue 3 is arranged on the second floor board 2, the first floor board 1 is connected with the second floor board 2 through the cooperation of the first tongue 3 and the second tongue 7, as shown in fig. 4, a first pressing block sliding groove 24 is arranged on the inner side wall of the second tongue 7, a first pressing block 26 is slidably connected inside the first pressing block sliding groove 24, a first pressing block pushing device and a locking device are arranged inside the second floor board 2, and both the first pressing block pushing device and the locking device are connected with the first pressing block 26.

As shown in fig. 4, the first pressing block pushing device includes a rotating rod 18, one end of the rotating rod 18 is installed on the bottom surface of the first pressing block sliding groove 24 and is connected with the rotating rod 18 in a rotating mode, an external thread 28 is arranged on the outer side face of the other end of the rotating rod 18, a first internal thread hole 27 matched with the external thread 28 is arranged on the first pressing block 26, the rotating rod 18 is in threaded connection with the first pressing block 26 through the matching of the external thread 28 and the internal thread hole 27, a limiting sliding groove 22 is arranged on the side wall of the first pressing block sliding groove 24, a limiting sliding block 23 matched with the limiting sliding groove 22 is fixed on the first pressing block 26, and the first pressing block 26 is in sliding connection with the first pressing block sliding groove 24 through the matching of the limiting sliding block 23 and the limiting sliding groove 22.

As shown in fig. 2 and 4, a first floor cavity 4 is arranged inside a second floor 2, the first floor cavity 4 is arranged on the side surface of the female tenon 7, a first connecting opening is formed between the first floor cavity 4 and the first female tenon 7, a gear 5 is installed in the first floor cavity 4, the edge of the gear 5 is arranged in the female tenon 7 through the first connecting opening, a rack 6 meshed with the gear 5 is arranged on the surface of the male tenon 3, a rotating rod installation groove 17 matched with the rotating rod 18 is formed in the bottom surface of a first pressing block sliding groove 24, one end of the rotating rod 18 is arranged in the rotating rod installation groove 17 and is rotatably connected with the rotating rod, an annular chamber 20 is arranged on the inner side wall of the rotating rod installation groove 17, the annular chamber 20 is arranged on the side surface of the first floor cavity 4, a second connecting opening is formed between the two side surfaces, a spiral part 21 matched with the gear 5 is arranged on the rotating rod 18, and the edge of the gear 5 is arranged in the annular chamber 20 through the second connecting opening and is meshed with the spiral part 21 on the rotating rod 18.

As shown in fig. 4, a limit baffle 19 is fixed on the rotating rod 18, and the limit baffle 19 is respectively arranged on the bottom surface of the annular chamber 20 and the top surface of the annular chamber 20.

As shown in fig. 5, a rotary mounting column 8 is fixed on the gear 5, rotary mounting grooves 29 matched with two ends of the rotary mounting column 8 are respectively arranged on the side walls of two opposite sides of the floor cavity one 4, and the gear 5 is mounted in the floor cavity one 4 through the matching of the rotary mounting column 8 and the rotary mounting grooves 29 and is rotatably connected with the floor cavity one 4.

As shown in fig. 3, a mounting post through hole 9 is formed in the end face of the rotary mounting post 8, the locking device comprises an inner ratchet 10 arranged on the inner side wall of the mounting post through hole 9, a fixing block 11 is arranged inside the mounting post through hole 9, the fixing block 11 is fixed on the side wall of the floor cavity one 4, a pawl 15 is arranged on the fixing block 11, and the inner ratchet 10 is meshed with the pawl 15.

As shown in fig. 3, a fixed block cavity 13 is arranged inside the fixed block 11, a rotating column 12 is installed in the fixed block cavity, the rotating column 12 is rotatably connected with the fixed block cavity 13, a torsion spring 30 is installed at the joint of the rotating column 12 and the fixed block cavity 13, a side opening 14 is formed in the side wall of the fixed block cavity 13, one side of the pawl 15 is fixed on the rotating column 12, the other side of the pawl 15 is meshed with the inner ratchet wheel 10 through the side opening 14, a limiting flange 16 is fixed on the side opening 14, and the pawl 15 is in contact with the limiting flange 16.

As shown in fig. 6, a second compact heap chute 32 is arranged on the inner side wall of the female tenon 7, the first compact heap chute 24 and the second compact heap chute 32 are respectively arranged on two adjacent inner side walls of the female tenon 7, a second compact heap 31 is slidably connected in the second compact heap chute 32, a second compact heap pushing device is arranged in the second floor 2, and the second compact heap pushing device is connected with the second compact heap 31.

As shown in fig. 6, a second floor cavity 36 is formed inside the second floor 2, the second floor cavity 36 is communicated with the second mortise 7 through a second pressing block sliding groove 32, a first guide block 34 is fixed on the second pressing block 31, the first guide block 34 is arranged in the second floor cavity 36, a second guide block 35 is connected in the second floor cavity 36 in a sliding mode, a first inclined plane and a second inclined plane which are matched with each other are respectively arranged on the first guide block 34 and the second guide block 35, a bottom sliding groove 39 is formed in the bottom surface of the second mortise 7, the bottom sliding groove 39 is arranged on the side surface of the second floor cavity 36 and is connected with a movable block 40 in a sliding mode, the side wall of the bottom sliding groove 39 is communicated with the side wall of the second floor cavity 36 through a connecting sliding groove 38, a connecting block 37 is connected in the connecting groove 38 in a sliding mode, and one end of the connecting block 37 is respectively fixed on the movable block 40 and the second guide block 35.

As shown in fig. 6, the cross-sectional width of the second pressing block 31 is smaller than the width of the first guide block 34, a limiting spring 33 is sleeved on the second pressing block 31, one end of the limiting spring 33 is fixed on the first guide block 34, and the other end of the limiting spring 33 is fixed on the inner side wall of the second floor cavity 36.

The working principle is as follows:

in the process that the male tenon 3 is inserted into the female tenon 7, the rack 6 on the male tenon 3 is meshed with the gear 5 to drive the gear 5 to rotate, and the rotating rod 18 is driven to rotate through a worm and gear structure formed by the spiral part 21 on the rotating rod 18 and the gear 5. When the rotating rod 18 rotates, under the action of the screw thread, the first pressing block 26 moves axially relative to the rotating rod 18 to approach the male tenon 3 and firmly press the male tenon 3 on the inner side wall of the female tenon 7 to be fixed (at this time, the pawl 15 is pressed down on the inner ratchet 10 by the elastic force of the torsion spring 30 to be meshed with the inner ratchet 10, when the gear 5 is driven by the rack 6 to rotate forward, the pawl 15 does not block the inner ratchet 10, the gear 5 can rotate smoothly, when the gear 5 wants to rotate backward, the pawl 15 blocks the inner ratchet 10, further the whole gear 5 is locked, the pawl 15 blocks the inner ratchet 10 on the gear 5, so that the gear 5 can only rotate in one direction but can not rotate backward, the gear 5 blocks the rack 6, further, the purpose of locking the male tenon 3 is achieved, the male tenon 3 is prevented from moving backward, and further, the swivelling levers 18 are also locked, preventing the release of the hold-down blocks 26 which hold down the pin 3). Meanwhile, when the male tenon 3 is inserted into the female tenon 7, the movable block 40 is pushed to move relatively in the bottom sliding groove 39, and the guide block II 35 is driven to move synchronously in the floor cavity II 36 under the transmission action of the connecting block 37; then under the pressure transmission action of the first inclined plane and the second inclined plane, the second pressing block 31 on the first guide block 34 is driven to move in the second pressing block sliding groove 32 and approach towards the male tenon 3, and the male tenon 3 is firmly pressed on the other inner side wall of the female tenon 7. The male tenon 3 in the female tenon 7 is fixed at the upper, lower, left, right and front and back positions.

Claims

1. The anti-deformation SPC lock catch floor structure is characterized by comprising a first floor (1) and a second floor (2), wherein a male tenon (3) is fixed on the first floor (1), a female tenon (7) matched with the male tenon (3) is arranged on the second floor (2), the first floor (1) is connected with the second floor (2) through the matching of the male tenon (3) and the female tenon (7), a first compression block sliding groove (24) is formed in the inner side wall of the female tenon (7), a first compression block (26) is connected to the first compression block sliding groove (24) in a sliding mode, a first compression block pushing device and a locking device are installed inside the second floor (2), and the first compression block pushing device and the locking device are connected with the first compression block (26).

2. The anti-deformation SPC locking floor structure as claimed in claim 1, the first compression block pushing device comprises a rotating rod (18), one end of the rotating rod (18) is installed on the bottom surface of the first compression block sliding groove (24) and is in rotating connection with the first compression block sliding groove, an external thread (28) is arranged on the outer side surface of the other end of the rotating rod (18), an internal thread hole (27) matched with the external thread (28) is arranged on the first pressing block (26), the rotating rod (18) is in threaded connection with the first pressing block (26) through the matching of an external thread (28) and an internal thread hole (27), a limiting sliding groove (22) is arranged on the side wall of the first compressing block sliding groove (24), a limit slide block (23) matched with the limit slide groove (22) is fixed on the first compression block (26), and the first pressing block (26) is in sliding connection with the first pressing block sliding groove (24) through the matching of the limiting sliding block (23) and the limiting sliding groove (22).

3. The anti-deformation SPC lock catch floor structure as claimed in claim 2, wherein a first floor cavity (4) is arranged inside the second floor (2), the first floor cavity (4) is arranged on the side surface of the first female tenon (7) and a first connecting opening is arranged between the first floor cavity (4), a gear (5) is arranged in the first floor cavity (4), the edge of the gear (5) is arranged in the first female tenon (7) through the first connecting opening, a rack (6) meshed with the gear (5) is arranged on the surface of the male tenon (3), a rotating rod mounting groove (17) matched with the rotating rod (18) is arranged on the bottom surface of the first compressing block sliding groove (24), one end of the rotating rod (18) is arranged in the rotating rod mounting groove (17) and is rotatably connected with the rotating rod mounting groove, an annular chamber (20) is arranged on the inner side wall of the rotating rod (17), and a second connecting opening is arranged between the first floor cavity (4) and the annular chamber (20) The spiral part (21) matched with the gear (5) is arranged on the rotating rod (18), and the edge of the gear (5) is arranged in the annular chamber (20) through the connecting opening II and is meshed with the spiral part (21) on the rotating rod (18).

4. A deformation-resistant SPC locking floor structure as claimed in claim 3, wherein a limiting baffle (19) is fixed on the rotation rod (18), said limiting baffle (19) is placed on the bottom surface of the annular chamber (20) and the top surface of the annular chamber (20), respectively.

5. A deformation-resistant SPC locking floor structure as claimed in claim 3, wherein the gear (5) is fixed with a rotation mounting column (8), the side walls of the two opposite sides of the first floor cavity (4) are respectively provided with a rotation mounting groove (29) matched with the two ends of the rotation mounting column (8), and the gear (5) is installed in the first floor cavity (4) by the cooperation of the rotation mounting column (8) and the rotation mounting groove (29) and is rotatably connected with the same.

6. A deformation-resistant SPC lock floor structure as claimed in claim 5, wherein the end surface of the rotary mounting post (8) is provided with a mounting post through hole (9), the locking device comprises an inner ratchet wheel (10) arranged on the inner side wall of the mounting post through hole (9), a fixed block (11) is arranged inside the mounting post through hole (9), the fixed block (11) is fixed on the side wall of the floor cavity I (4), the fixed block (11) is provided with a pawl (15), and the inner ratchet wheel (10) and the pawl (15) are engaged.

7. The deformation-resistant SPC lock floor structure as recited in claim 6, wherein a fixed block cavity (13) is arranged inside the fixed block (11), a rotating column (12) is installed in the fixed block cavity, the rotating column (12) is rotatably connected with the fixed block cavity (13), a torsion spring (30) is installed at the joint of the rotating column (12) and the fixed block cavity (13), a side opening (14) is arranged on the side wall of the fixed block cavity (13), one side of the pawl (15) is fixed on the rotating column (12), the other side of the pawl (15) is meshed with the inner ratchet wheel (10) through the side opening (14), a limiting flange (16) is fixed on the side opening (14), and the pawl (15) is in contact with the limiting flange (16).

8. The deformation-resistant SPC lock catch floor structure as claimed in claim 1, wherein a second compression block sliding groove (32) is formed in the inner side wall of the female tenon (7), the first compression block sliding groove (24) and the second compression block sliding groove (32) are respectively arranged on two adjacent inner side walls of the female tenon (7), a second compression block (31) is connected in the second compression block sliding groove (32) in a sliding mode, a second compression block pushing device is installed inside the second floor (2), and the second compression block pushing device is connected with the second compression block (31).

9. The anti-deformation SPC lock floor structure as claimed in claim 8, wherein a second floor cavity (36) is formed inside the second floor (2), the second floor cavity (36) and the second mortise (7) are communicated through a second compression block sliding groove (32), a first guide block (34) is fixed on the second compression block (31), the first guide block (34) is arranged in the second floor cavity (36), a second guide block (35) is connected in the second floor cavity (36) in a sliding manner, a first inclined surface and a second inclined surface which are matched with each other are respectively arranged on the first guide block (34) and the second guide block (35), a bottom sliding groove (39) is formed in the bottom surface of the second mortise (7), the bottom sliding groove (39) is arranged on the side surface of the second floor cavity (36) and is connected with a movable block (40) in a sliding manner, and the side wall of the bottom sliding groove (39) and the side wall of the second floor cavity (36) are communicated through a connecting sliding groove (38), and the connecting chute (38) is internally and slidably connected with a connecting block (37), and one end of the connecting block (37) is respectively fixed on the movable block (40) and the second guide block (35).

10. The anti-deformation SPC lock floor structure as claimed in claim 9, wherein the cross sectional width of the second compression block (31) is smaller than the width of the first guide block (34), the second compression block (31) is sleeved with a limiting spring (33), one end of the limiting spring (33) is fixed on the first guide block (34), and the other end of the limiting spring (33) is fixed on the inner side wall of the second floor cavity (36).