Multilayer composite pine plywood

Abstract

The utility model belongs to the technical field of plywood, and particularly relates to a multilayer composite pine plywood which comprises a first plywood body and a second plywood body detachably connected with the first plywood body, and the side end of the first plywood body and the side end of the second plywood body are connected with a connecting assembly. During splicing, the connecting block is fixed to the side end of the second plywood through a screw, then the mounting plate is fixed to the side end, corresponding to the second plywood, of the first plywood through a screw, at the moment, the clamping plate is rotated to be clamped with the connecting block, and the connecting block and the clamping plate can be fixed by inserting the limiting block into the first limiting groove and the second limiting groove; the clamping plates are fixedly installed at the two ends of the first plywood, then the clamping plates are rotated to be attached to the side ends of the second plywood, at the moment, the first limiting grooves and the third limiting grooves coincide, then the limiting blocks are inserted for limiting, and the effect of conveniently disassembling and assembling the multi-layer composite pine plywood is achieved.

Description

Technical Field

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

[0002] Multi-layer composite pine plywood is a board made of multiple layers of pine veneers through a gluing process. It usually has good strength and stability and is often used in furniture manufacturing, building decoration, packaging and other fields. Since pine wood is used as the raw material, it may have certain pine wood characteristics, such as beautiful texture and relatively soft texture.

[0003] The specification of Chinese patent CN218314112U discloses a multi-layer composite plywood, including a back plate, a purification plate fixedly connected to the front side of the back plate, and a reinforcing plate fixedly connected to the front side of the purification plate; the reinforcing plate includes a frame, and a "cross" plate fixedly connected to the inner cavity of the frame. The multi-layer composite plywood, through the arrangement of the reinforcing plate, the inner cavity of the frame is fixedly connected to the "cross" plate, four cavities are formed between the "cross" plate and the frame, and the inner cavity of the cavity is fixedly connected to an "X"-shaped support plate, a plurality of elastic rods are fixedly connected between adjacent two sides of the "X"-shaped support plate, the materials of the "cross" plate and the "X"-shaped support plate are both metal materials, a stable triangular support is formed between the "X"-shaped support plate and the cavity, and the plurality of elastic rods fixedly connected between adjacent two sides of the "X"-shaped support plate buffer the deformation of the plate when the plate is impacted, thereby improving the strength of the plywood and making it not easily damaged.

[0004] The above-mentioned device adopts a technical means to increase the strength of the plywood. However, when using the above-mentioned device, the decorative panel on the multi-layer composite pine plywood is easily damaged. However, since the multi-layer composite pine plywood is an integral structure, when the decorative panel is damaged, the entire multi-layer composite pine plywood needs to be replaced, thereby increasing the cost. The existing multi-layer composite pine plywood does not have a structure for convenient disassembly and assembly. Therefore, a new type of multi-layer composite pine plywood is needed to be improved. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a multi-layer composite pine plywood, which has the advantage of convenient assembly of the multi-layer composite pine plywood and solves the problem that the prior multi-layer composite pine plywood has no convenient disassembly and assembly structure.

[0006] In order to achieve the purpose of convenient assembly of the above-mentioned multi-layer composite pine plywood, the utility model provides the following technical solutions: a multi-layer composite pine plywood, comprising a first plywood, which is detachably connected to a second plywood, and the first plywood and the second plywood are connected to the side ends by a connecting component;

[0007] The connecting component includes a connecting block that is threadedly connected to the second plywood and the second plywood through screws. First limiting grooves are symmetrically opened at both ends of the connecting block. Installation plates are threadedly connected to one ends of the first plywood and the second plywood away from the first limiting grooves through screws. Two groups of clamping plates are symmetrically and fixedly connected to the side ends of the installation plates. A clamping plate is rotatably connected to the middle of the clamping plates through a rotating shaft, and the clamping plate is engaged with the connecting block. A second limiting groove corresponding to the first limiting groove is formed in the clamping plate, and a limiting block is inserted into the second limiting groove and the first limiting groove. Third limiting grooves corresponding to the first limiting groove are symmetrically opened at the side ends of the first plywood and the second plywood.

[0008] Further, the first plywood includes a top layer plate fixedly located on the surface. A middle layer plate is connected to the bottom end of the top layer plate, and a bottom layer plate is connected to the bottom end of the middle layer plate.

[0009] Further, the top end of the bottom layer plate and the bottom end of the top layer plate are both designed with tooth patterns, and both ends of the middle layer plate are designed with tooth patterns matching the tooth patterns on the top layer plate and the bottom layer plate.

[0010] Further, the top layer plate, the bottom layer plate and the middle layer plate are fixedly connected through an adhesive layer.

[0011] Further, waterproof layers are provided on the surfaces of the top layer plate and the bottom layer plate, and the waterproof layers are made of plastic film materials.

[0012] Further, an activated carbon layer is provided in the middle of the middle layer plate, and activated carbon particles are filled in the activated carbon layer.

[0013] Further, both the first limiting groove and the clamping plate are designed with multiple sizes.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. When the present utility model is in use, by setting the connecting block and the clamping plate, when longitudinally splicing and installing the first plywood and the second plywood, connecting blocks and clamping plates of corresponding sizes can be selected. First, the connecting block is fixed to the side end of the second plywood through screws, and then the installation plate is fixed to the side end of the first plywood corresponding to the second plywood through screws. At this time, the clamping plate is rotated to engage with the connecting block, so that the first limiting groove and the second limiting groove coincide. Then, the limiting block is inserted into the first limiting groove and the second limiting groove to fix the connecting block and the clamping plate. When splicing horizontally, clamping plates can be fixedly installed at both ends of the first plywood, and then the clamping plates can be rotated to make them fit with the side end of the second plywood. At this time, the first limiting groove coincides with the third limiting groove at the side end of the second plywood, and the limiting block can be inserted for limiting. It can effectively achieve the assembly of multi-layer composite pine plywood according to the installation requirements, and ensure firm installation while being convenient for disassembly and assembly.

[0016] 2. When the present utility model is in use, by setting a waterproof layer and an activated carbon layer, when processing and producing a multi-layer composite pine plywood, since the splicing surfaces of the top layer board, the middle layer board and the bottom layer board are all designed with tooth patterns and are engaged with each other, and then adhered through an adhesive layer, the friction between each layer of boards can be increased, avoiding the problem of easy delamination. And an activated carbon layer is provided in the middle layer board, filled with activated carbon particles, which can keep the whole composite pine plywood dry. Then, a waterproof layer is coated on the surfaces of the top layer board and the bottom layer board, and the waterproof layer is made of a plastic film material, such as a polyethylene film, which can effectively prevent water penetration, achieving the effect of preventing the composite pine plywood from deforming due to moisture. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is an axonometric structural schematic diagram of the multi-layer composite pine plywood of the present utility model;

[0019] Figure 2 is of the present utility model Figure 1 is an enlarged structural schematic diagram at A in

[0020] Figure 3 is a side view cross-sectional schematic diagram of the multi-layer composite pine plywood of the present utility model;

[0021] Figure 4 is an exploded structural schematic diagram of the multi-layer composite pine plywood of the present utility model.

[0022] In the figures: 1. First plywood; 101. Top layer board; 102. Middle layer board; 103. Bottom layer board; 104. Waterproof layer; 105. Adhesive layer; 106. Activated carbon layer; 2. Second plywood; 3. Connecting component; 301. Connecting block; 302. Mounting plate; 303. First limiting groove; 304. Screw; 305. Clamping plate; 306. Card plate; 307. Limiting block; 308. Second limiting groove; 309. Third limiting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figure 1-2The utility model provides a technical solution: a multi-layer composite pine plywood, including a first plywood 1, detachably connected with a second plywood 2, and a connection component 3 is connected to the side ends of the first plywood 1 and the second plywood 2;

[0025] The connection component 3 includes a connection block 301 threadedly connected to the second plywood 2 and the second plywood 2 through screws 304. First limiting grooves 303 are symmetrically arranged at both ends of the connection block 301. Installation plates 302 are threadedly connected to the ends of the first plywood 1 and the second plywood 2 far from the first limiting grooves 303 through screws 304. Two groups of clamping plates 305 are symmetrically and fixedly connected to the side ends of the installation plates 302. A clamping plate 306 is rotatably connected to the middle of the clamping plates 305 through a rotating shaft, and the clamping plate 306 is engaged with the connection block 301. A second limiting groove 308 corresponding to the first limiting groove 303 is formed in the clamping plate 306, and a limiting block 307 is inserted into the first limiting groove 303 and the second limiting groove 308. Third limiting grooves 309 corresponding to the first limiting groove 303 are symmetrically arranged at the side ends of the first plywood 1 and the second plywood 2. The first limiting groove 303 and the clamping plate 306 are both designed with multiple sizes.

[0026] By providing the connection block 301 and the clamping plate 306, when longitudinally splicing and installing the first plywood 1 and the second plywood 2, the connection block 301 and the clamping plate 306 with corresponding sizes can be selected. First, the connection block 301 is fixed to the side end of the second plywood 2 through a screw 304, and then the installation plate 302 is fixed to the side end of the first plywood 1 corresponding to the second plywood 2 through a screw 304. At this time, the clamping plate 306 is rotated to engage with the connection block 301, so that the first limiting groove 303 and the second limiting groove 308 coincide. Then, the limiting block 307 is inserted into the first limiting groove 303 and the second limiting groove 308 to fix the connection block 301 and the clamping plate 306. When transversely splicing, the clamping plates 306 can be fixedly installed at both ends of the first plywood 1, and then the clamping plates 306 can be rotated to make them fit with the side end of the second plywood 2. At this time, the first limiting groove 303 coincides with the third limiting groove 309 at the side end of the second plywood 2, and the limiting block 307 can be inserted for limiting. It can effectively achieve the assembly of the multi-layer composite pine plywood according to the installation requirements, and ensure firm installation while being convenient for disassembly and assembly.

[0027] Such as Figure 3-4, the first plywood 1 includes a top layer board 101 fixedly located on the surface. The bottom end of the top layer board 101 is connected to a middle layer board 102, and the bottom end of the middle layer board 102 is connected to a bottom layer board 103. The top end of the bottom layer board 103 and the bottom end of the top layer board 101 are both designed with tooth patterns. Both ends of the middle layer board 102 are designed with tooth patterns that match the tooth patterns on the top layer board 101 and the bottom layer board 103. The top layer board 101, the bottom layer board 103 and the middle layer board 102 are fixedly connected through an adhesive layer 105. Waterproof layers 104 are provided on the surfaces of the top layer board 101 and the bottom layer board 103, and the waterproof layers 104 are made of plastic film material. An activated carbon layer 106 is provided in the middle of the middle layer board 102, and activated carbon particles are filled in the activated carbon layer 106.

[0028] By providing the waterproof layer 104 and the activated carbon layer 106, when processing and producing multi-layer composite pine plywood, since the splicing surfaces of the top layer board 101, the middle layer board 102 and the bottom layer board 103 are all designed with tooth patterns and are mutually engaged, and then adhered through the adhesive layer 105, the friction between each layer of boards can be increased, avoiding the problem of easy delamination. And an activated carbon layer 106 is provided in the middle layer board 102, filled with activated carbon particles, which can keep the whole piece of composite pine plywood dry. Then, a waterproof layer 104 is coated on the surfaces of the top layer board 101 and the bottom layer board 103, and the waterproof layer 104 is made of plastic film material, such as polyethylene film, which can effectively prevent water penetration, achieving the effect of preventing the composite pine plywood from getting damp and deformed.

[0029] The working principle of the above embodiment is: Compared with the prior art, when the first plywood 1 and the second plywood 2 are longitudinally spliced and installed, first, the connecting block 301 is fixed to the side end of the second plywood 2 through the screw 304, and then the mounting plate 302 is fixed to the side end of the first plywood 1 corresponding to the second plywood 2 through the screw 304. At this time, the rotating clamping plate 306 is engaged with the connecting block 301, and the limiting block 307 is inserted into the first limiting groove 303 and the second limiting groove 308 to fix the connecting block 301 and the clamping plate 306. When horizontally splicing, clamping plates 306 are fixedly installed at both ends of the first plywood 1, and then the clamping plates 306 are rotated to make them fit with the side end of the second plywood 2. At this time, the first limiting groove 303 coincides with the third limiting groove 309, and then the limiting block 307 is inserted for limiting. And when processing and producing multi-layer composite pine plywood, since the splicing surfaces of the top layer board 101, the middle layer board 102 and the bottom layer board 103 are all designed with tooth patterns and are mutually engaged, and then adhered through the adhesive layer 105, the friction between each layer of boards can be increased to avoid delamination. An activated carbon layer 106 is provided in the middle layer board 102, filled with activated carbon particles, which can keep the whole piece of composite pine plywood dry. A waterproof layer 104 is coated on the surfaces of the top layer board 101 and the bottom layer board 103, which can effectively prevent water penetration, avoiding the effect of the multi-layer composite pine plywood getting damp and deformed, improving the practicability of the multi-layer composite pine plywood, and solving the problem of the lack of a convenient disassembly and assembly structure in the prior art.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-layer composite pine plywood, comprising a first plywood (1), characterized in that: A second plywood board (2) is detachably connected, and a connection assembly (3) is connected to the side ends of the first plywood board (1) and the second plywood board (2); The connection assembly (3) includes a connection block (301) threadedly connected to the second plywood board (2) and the second plywood board (2) by screws (304). First limiting grooves (303) are symmetrically formed at both ends of the connection block (301). Installation plates (302) are threadedly connected to the first plywood board (1) and the second plywood board (2) away from the first limiting grooves (303) by screws (304). Two groups of clamping plates (305) are symmetrically and fixedly connected to the side ends of the installation plates (302). A clamping plate (306) is rotatably connected to the middle of the clamping plates (305) through a rotating shaft, and the clamping plate (306) is engaged with the connection block (301). A second limiting groove (308) corresponding to the first limiting groove (303) is formed in the clamping plate (306), and a limiting block (307) is inserted into the second limiting groove (308) and the first limiting groove (303). Third limiting grooves (309) corresponding to the first limiting grooves (303) are symmetrically formed on the side ends of the first plywood board (1) and the second plywood board (2).

2. The multi-layer composite pine plywood according to claim 1, wherein: The first plywood board (1) includes a top layer board (101) fixedly located on the surface. A middle layer board (102) is connected to the bottom end of the top layer board (101), and a bottom layer board (103) is connected to the bottom end of the middle layer board (102).

3. A multi-layer composite pine plywood according to claim 2, characterized in that: The top end of the bottom layer board (103) and the bottom end of the top layer board (101) are both designed with tooth patterns, and both ends of the middle layer board (102) are designed with tooth patterns matching the tooth patterns on the top layer board (101) and the bottom layer board (103).

4. A multi-layer composite pine plywood according to claim 2, characterized in that: The top layer board (101), the bottom layer board (103) and the middle layer board (102) are fixedly connected through an adhesive layer (105).

5. The multi-layer composite pine plywood according to claim 2, wherein: Waterproof layers (104) are provided on the surfaces of the top layer board (101) and the bottom layer board (103), and the waterproof layers (104) are made of plastic film materials.

6. The multi-layer composite pine plywood according to claim 2, wherein: An activated carbon layer (106) is provided in the middle of the middle layer board (102), and activated carbon particles are filled in the activated carbon layer (106).

7. A multi-layer composite pine plywood according to claim 1, characterized in that: Both the first limiting groove (303) and the clamping plate (306) are designed with multiple sizes.

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