Deformable multi-layer plywood

Abstract

The utility model relates to the technical field of plywood, and discloses a deformable multi-layer plywood which comprises a first multi-layer plywood and a second multi-layer plywood, according to the deformable multi-layer plywood, when a pushing block is loosened, a compressed spring can push a sliding block to move towards the right side along a sliding groove, and the sliding block can also push an embedding plate to be clamped into a triangular groove; meanwhile, the embedding plate can be embedded into the embedding groove, the embedding shape of the dovetail joint and the dovetail groove is limited again through the embedding plate, the dovetail joint cannot be pulled out of the dovetail groove, at the moment, a mounting bolt is inserted into a second mounting hole to be in threaded connection with a first mounting hole, and the mounting bolt can be shrunk into a shrinkage hole after being completely mounted; and along with insertion of the embedding plates and installation of the installation bolts, it can be guaranteed that longitudinal tension between the first multi-layer plywood and the second multi-layer plywood is stable, and embedding stability between the dovetail tenons and the dovetail grooves can also be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of plywood, in particular to a deformable multi-layer plywood. Background Art

[0002] Plywood is a building material made of multiple layers of wood, with the grain direction of each layer perpendicular to each other, bonded together by glue or other adhesives. Plywood has high strength and stability and can be used in furniture making, building structures, flooring and other fields. Due to its excellent performance and environmental protection characteristics, more and more people are beginning to choose plywood as a building material.

[0003] The multi-layer plywood commonly used in existing furniture or floors is mostly installed by connecting grooves and strips for interlocking installation. However, although this installation method can ensure the lateral tension between the two sets of boards, when encountering longitudinal thrust, it is very likely to cause the grooves and strips to separate, causing the boards to loosen. Utility Model Content

[0004] The purpose of the utility model is to provide a deformable multi-layer plywood to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a deformable multi-layer plywood, comprising a multi-layer plywood 1 and a multi-layer plywood 2, wherein a connecting portion is provided between the multi-layer plywood 1 and the multi-layer plywood 2, and the connecting portion comprises:

[0006] The dovetail groove is provided on one side of the multi-layer plywood 1 close to the multi-layer plywood 2. The slider will drive the fitting groove to shrink into the vertical groove during the sliding process, so that the cross-sectional shape of the dovetail groove changes. A triangular groove is provided on the inner side of the dovetail groove. When the multi-layer plywood 1 and the multi-layer plywood 2 are butt-jointed and installed, the spring will first be pushed by the slider to resist the fitting plate and be inserted into the triangular groove.

[0007] A slide groove, the slide groove is provided inside the multi-layer plywood 1, a slider is slidably connected to the inner side of the slide groove, a mosaic plate is fixedly connected to the right side of the slider, and a mounting hole 1 is provided on the surface of the mosaic plate;

[0008] A vertical groove is provided on the inner side of the slide groove. The pushing block is pushed manually first, and the pushing block will slide along the limiting groove. When the pushing block slides along the limiting groove, the lever will be driven to rotate with the center line of the shaft as the axis. A plug rod is fixedly connected to the side of the slider away from the engaging plate. A slot is provided on the left side of the slide groove, and the plug rod passes through the slot and is slidably connected.

[0009] Preferably, a toggle groove is provided on the inner side of the multi-layer plywood 1, and a limit groove is provided on the side of the multi-layer plywood 1. When the push block is pushed manually, the push block will slide along the limit groove.

[0010] Preferably, a pushing block is slidably connected to the inner side of the limiting groove, a shifting rod is hingedly connected to a side of the pushing block close to the slider, and an end of the shifting rod away from the pushing block passes through the slider and is hingedly connected to the slider.

[0011] Preferably, a shaft rod passes through and is rotatably connected to the surface of the lever, and the shaft rod passes through the toggle slot and is fixedly connected.

[0012] Preferably, a spring is fixedly connected to one side of the slider away from the engaging plate, and the dovetail tenon is inserted into the dovetail groove so that the dovetail tenon is engaged with the dovetail groove, and one end of the spring away from the engaging plate is fixedly connected to the inner side of the slide groove.

[0013] Preferably, a dovetail tenon is fixedly connected to one side of the multi-layer plywood 2 close to the multi-layer plywood 1, a fitting groove is provided on the surface of the dovetail tenon, and a shrinkage hole is provided on the outer side of the dovetail tenon.

[0014] Preferably, a second mounting hole is provided on the inner side of the engaging groove, and the engaging plate will be embedded in the engaging groove. At this time, the first mounting hole provided on the surface of the engaging plate will be aligned with the second mounting hole in the engaging groove. The second mounting hole and the first mounting hole are both penetrated by mounting bolts and threadedly connected. The mounting bolt is inserted into the second mounting hole and threadedly connected with the first mounting hole. When the mounting bolt is fully installed, it will shrink into the shrinkage hole to prevent the tail end of the mounting bolt from protruding.

[0015] Compared with the prior art, the utility model provides a deformable multi-layer plywood, which has the following beneficial effects:

[0016] The deformable multi-layer plywood releases the pushing block, and the compressed spring pushes the slider to move to the right along the sliding groove, and the slider also pushes the engaging plate to be stuck in the triangular groove, and the engaging plate is embedded in the engaging groove, so that the engaging plate is again limited in shape by the engaging plate, so that the dovetail tenon cannot be pulled out of the dovetail groove, and at this time, the mounting bolt is inserted into the second mounting hole and threadedly connected with the first mounting hole. When the mounting bolt is fully installed, it will shrink into the shrinking hole to prevent the tail end of the mounting bolt from protruding, and with the insertion of the engaging plate and the installation of the mounting bolt, the longitudinal tension between the multi-layer plywood one and the multi-layer plywood two can be guaranteed to be stable, and the stability of the engagement between the dovetail tenon and the dovetail groove can also be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2This is a schematic diagram of the structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of a multi-layer plywood of the utility model;

[0020] Figure 4 This is a partial enlarged structural diagram of the connection part of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the slider of the utility model.

[0022] In the figure: 1. multi-layer plywood 1; 2. connecting part; 21. dovetail groove; 22. triangular groove; 23. slide groove; 24. vertical groove; 25. slot; 26. toggle groove; 27. limit groove; 28. dovetail tenon; 29. ​​fitting groove; 210. shrinkage hole; 211. mounting hole 2; 212. mounting bolt; 213. slider; 214. fitting plate; 215. mounting hole 1; 216. plug rod; 217. spring; 218. toggle rod; 219. shaft rod; 220. push block; 3. multi-layer plywood 2. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a deformable multi-layer plywood, comprising a multi-layer plywood 1 and a multi-layer plywood 2 3, a connecting portion 2 is arranged between the multi-layer plywood 1 and the multi-layer plywood 2 3, and the connecting portion 2 comprises: a dovetail groove 21, a triangular groove 22, a slide groove 23, a vertical groove 24, a slot 25, a toggle groove 26, a limit groove 27, a dovetail tenon 28, an engaging groove 29, a shrinkage hole 210, a second mounting hole 211, a mounting bolt 212, a slider 213, a slider 213, an engaging plate 214, a mounting hole 1 215, an insertion rod 216, a spring 217, a toggle rod 218, a shaft rod 219, and a pushing block 220.

[0024] The dovetail groove 21 is provided on one side of the multi-layer plywood 1 close to the multi-layer plywood 23. The slider 213 will drive the fitting groove 29 to shrink into the vertical groove 24 during the sliding process, thereby changing the cross-sectional shape of the dovetail groove 21 so that it can fit with the dovetail groove 21 and the dovetail tenon 28. A triangular groove 22 is provided on the inner side of the dovetail groove 21. When the multi-layer plywood 1 and the multi-layer plywood 23 are docked and installed, firstly, due to the push of the spring 217, the spring 217 will be inserted into the triangular groove 22 through the slider 213 against the fitting plate 214. The slide groove 23 is provided inside the multi-layer plywood 1. The inner side of the slide groove 23 is slidably connected with the slider 213. The right side of the slider 213 is fixed. A fitting plate 214 is connected, and a mounting hole 215 is provided on the surface of the fitting plate 214. A vertical slot 24 is provided on the inner side of the slide slot 23. The push block 220 is first pushed manually, and the push block 220 will slide along the limit slot 27. When the push block 220 slides along the limit slot 27, it will drive the lever 218 to rotate with the center line of the shaft 219 as the axis, so that the end of the lever 218 away from the push block 220 drives the slider 213 to slide along the slide slot 23 toward the slot 25. The side of the slider 213 away from the fitting plate 214 is fixedly connected with an insertion rod 216. The left side of the slide slot 23 is provided with a slot 25. The insertion rod 216 penetrates the slot 25 and is slidably connected. A toggle slot 26 is provided on the inner side of the multilayer plywood 1, and a limit slot 27 is provided on the side of the multilayer plywood 1. The push block 220 is manually pushed, and the push block 220 will slide along the limit slot 27. A push block 220 is slidably connected to the inner side of the limiting groove 27, and a lever 218 is hingedly connected to the side of the push block 220 close to the slider 213. The end of the lever 218 away from the push block 220 penetrates the slider 213 and is hinged to the slider 213. A shaft 219 penetrates and is rotatably connected to the surface of the lever 218, and the shaft 219 penetrates the toggle groove 26 and is fixedly connected. The side of the slider 213 away from the interlocking plate 214 is fixedly connected with a spring 217, and the dovetail tenon 28 is inserted into the dovetail groove 21, so that the dovetail tenon 28 is interlocked with the dovetail groove 21. When the side surfaces of the multi-layer plywood 1 and the multi-layer plywood 2 are completely aligned, the push block 220 is released, and the compressed spring 217 will push the slider 213 to move to the right along the slide groove 23, and the slider 213 will also push the interlocking plate 214 to be stuck in the triangular groove 22, and the interlocking plate 214 will be embedded in the interlocking groove 29. The end of the spring 217 away from the interlocking plate 214 is fixedly connected to the inner side of the slide groove 23. The side of the multi-layer plywood 23 close to the multi-layer plywood 1 is fixedly connected with a dovetail tenon 28, and the surface of the dovetail tenon 28 is provided with an interlocking groove 29, and the outer side of the dovetail tenon 28 is provided with a shrinkage hole 210.A second mounting hole 211 is provided on the inner side of the engaging groove 29, and the engaging plate 214 will be embedded in the engaging groove 29. At this time, the first mounting hole 215 provided on the surface of the engaging plate 214 will be aligned with the second mounting hole 211 in the engaging groove 29, so that the dovetail tenon 28 and the dovetail groove 21 are again limited by the engaging plate 214 in the shape of the engaging. The dovetail tenon 28 cannot be pulled out of the dovetail groove 21. The second mounting hole 211 and the first mounting hole 215 are penetrated by the mounting bolt 212 and threadedly connected. The mounting bolt 212 is inserted into the second mounting hole 211 and threadedly connected with the mounting hole 1 215. When the mounting bolt 212 is fully installed, it will shrink into the shrinkage hole 210 to prevent the tail end of the mounting bolt 212 from protruding. After the installation is completed, the engagement of the dovetail tenon 28 and the dovetail groove 21 can ensure the stability of the lateral tension between the multi-layer plywood 1 and the multi-layer plywood 2 3.

[0025] Based on the above embodiment, when the multi-layer plywood 1 and the multi-layer plywood 2 are butt-jointed and installed, firstly, due to the push of the spring 217, the spring 217 will be inserted into the triangular groove 22 through the slider 213 against the interlocking plate 214, and the staff will manually push the push block 220, and the push block 220 will slide along the limit groove 27. When the push block 220 slides along the limit groove 27, it will drive the lever 218 to rotate with the center line of the shaft 219 as the axis, so that the end of the lever 218 away from the push block 220 drives the slider 2 13 slides along the slide groove 23 toward the slot 25, thereby compressing the spring 217. During the sliding process, the slide block 213 drives the fitting groove 29 to shrink into the vertical groove 24, thereby changing the cross-sectional shape of the dovetail groove 21 so that the dovetail groove 21 can fit with the dovetail tenon 28. At this time, the dovetail tenon 28 is inserted into the dovetail groove 21 so that the dovetail tenon 28 fits with the dovetail groove 21. When the side surfaces of the multi-layer plywood 1 and the multi-layer plywood 2 are completely aligned, the push block 220 is released, and the compressed spring 217 pushes The slider 213 moves to the right along the slide groove 23, and the slider 213 also pushes the engaging plate 214 to be stuck in the triangular groove 22. At the same time, the engaging plate 214 is embedded in the engaging groove 29. At this time, the mounting hole 1 215 opened on the surface of the engaging plate 214 is aligned with the mounting hole 211 in the engaging groove 29, so that the dovetail tenon 28 and the dovetail groove 21 are again limited by the engaging plate 214 in the shape of the engaging plate 214, so that the dovetail tenon 28 cannot be pulled out of the dovetail groove 21. At this time, the mounting bolt 212 is inserted into the mounting hole 211 and the mounting hole 1 215 is aligned. The mounting bolts 212 are threadedly connected. When the mounting bolts 212 are fully installed, they will shrink into the shrinkage hole 210 to prevent the tail end of the mounting bolts 212 from protruding. After the installation is completed, the transverse tension between the multi-layer plywood 1 and the multi-layer plywood 2 3 can be ensured to be stable through the engagement of the dovetail tenon 28 and the dovetail groove 21. With the insertion of the engaging plate 214 and the installation of the mounting bolts 212, the longitudinal tension between the multi-layer plywood 1 and the multi-layer plywood 2 3 can be ensured to be stable, and the engagement between the dovetail tenon 28 and the dovetail groove 21 can also be ensured to be stable.

[0026] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A deformable multi-layer plywood, comprising a multi-layer plywood 1 (1) and a multi-layer plywood 2 (3), characterized in that: A connecting portion (2) is provided between the multilayer plywood 1 (1) and the multilayer plywood 2 (3), and the connecting portion (2) comprises: A dovetail groove (21), wherein the dovetail groove (21) is provided on a side of the multi-layer plywood sheet 1 (1) close to the multi-layer plywood sheet 2 (3), and a triangular groove (22) is provided on the inner side of the dovetail groove (21); A slide groove (23), wherein the slide groove (23) is provided inside the multilayer plywood (1), a slider (213) is slidably connected to the inner side of the slide groove (23), a fitting plate (214) is fixedly connected to the right side of the slider (213), and a mounting hole (215) is provided on the surface of the fitting plate (214); A vertical groove (24) is provided on the inner side of the slide groove (23); a plug rod (216) is fixedly connected to the side of the slider (213) away from the engaging plate (214); a slot (25) is provided on the left side of the slide groove (23); and the plug rod (216) passes through the slot (25) and is slidably connected.

2. A deformable multi-layer plywood according to claim 1, characterized in that: The inner side of the multi-layer plywood board 1 (1) is provided with a toggle groove (26), and the side surface of the multi-layer plywood board 1 (1) is provided with a limit groove (27).

3. The deformable multi-layer plywood according to claim 2, characterized in that: A pushing block (220) is slidably connected to the inner side of the limiting groove (27); a side of the pushing block (220) close to the slider (213) is hingedly connected to a shifting rod (218); an end of the shifting rod (218) away from the pushing block (220) passes through the slider (213) and is hingedly connected to the slider (213).

4. The deformable multi-layer plywood according to claim 3, characterized in that: A shaft rod (219) passes through the surface of the shifting rod (218) and is rotatably connected thereto; the shaft rod (219) passes through the shifting groove (26) and is fixedly connected thereto.

5. The deformable multi-layer plywood according to claim 1, characterized in that: A spring (217) is fixedly connected to one side of the sliding block (213) away from the interlocking plate (214), and one end of the spring (217) away from the interlocking plate (214) is fixedly connected to the inner side of the sliding groove (23).

6. The deformable multi-layer plywood according to claim 1, characterized in that: A dovetail joint (28) is fixedly connected to one side of the multilayer plywood board 2 (3) close to the multilayer plywood board 1 (1), a fitting groove (29) is provided on the surface of the dovetail joint (28), and a shrinkage hole (210) is provided on the outer side of the dovetail joint (28).

7. The deformable multi-layer plywood according to claim 6, characterized in that: A second mounting hole (211) is provided on the inner side of the engaging groove (29), and the second mounting hole (211) and the first mounting hole (215) are both penetrated by mounting bolts (212) and threadedly connected.

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