Plywood capable of reducing interlayer looseness

Abstract

The plywood capable of reducing interlayer looseness comprises a middle layer and two sets of plywood layers, the two sets of plywood layers are laid on the two opposite sides of the middle layer respectively, the middle layer and the plywood layers are fixed in an adhesive mode, the middle layer comprises a wood-plastic plate, and a flat plate part attached to the plywood layers is formed in the middle of the wood-plastic plate. A plurality of I-shaped parts are formed on the flat plate part at intervals, a gap between the I-shaped parts and the flat plate part forms an insertion groove used for laying the plywood layer, the plywood layer comprises a plurality of wood laths, and each wood lath is inserted into one insertion groove and is fixedly bonded with the wood-plastic plate. Through cooperative arrangement of the middle layer and the plywood layer, the interlayer structure forming the plywood can protect and limit the inner side plywood and the end plywood in the plywood layer through the wood-plastic plate and the corner protection blocks in the middle layer, and therefore looseness between the plywood layer and the middle layer is reduced; and the stability and the bending resistance of the sandwich structure forming the plywood are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plywood, in particular to plywood capable of reducing interlayer looseness. BACKGROUND

[0002] Plywood, commonly known as multi-layer board, is one of the commonly used materials for furniture and is a kind of artificial board. Plywood is commonly formed by wood segments being rotary cut into veneers or thin wood being planed from a wood square, and then being glued into a three-layer or multi-layer board-shaped material by using a glue.

[0003] The traditional plywood is generally single in structure, and the strength of the plywood is not high. In the actual use process, the plywood is prone to bending deformation under load or to looseness and cracking between the interlayer structures of the plywood. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the problems in the background art, the application provides plywood capable of reducing interlayer looseness.

[0005] The plywood capable of reducing interlayer looseness provided by the application adopts the following technical scheme:

[0006] The plywood capable of reducing interlayer looseness comprises a middle layer and two groups of batten layers, the two groups of batten layers are respectively laid on opposite sides of the middle layer, and the middle layer and the batten layers are adhesively fixed, the middle layer comprises a wood-plastic board, a flat plate part abutting against the batten layers is formed in the middle of the wood-plastic board, a plurality of H-shaped parts are formed at intervals on the flat plate part, gaps between the H-shaped parts and the flat plate part form insertion grooves for laying the batten layers, and the batten layers comprise a plurality of wood strips, each wood strip is inserted into one insertion groove and adhesively fixed with the wood-plastic board.

[0007] Furthermore, the middle layer further comprises four corner protection blocks, L-shaped corner grooves are formed at four corners of the flat plate part, the four corner protection blocks are respectively inserted into the corner parts of the flat plate part in a positioning and fitting mode by using adjacent L-shaped corner grooves, and the corner protection blocks and the flat plate part are adhesively fixed, the corner protection block comprises a positioning part, two cover parts and a positioning groove, the positioning part is close to the outer edge of the wood-plastic board and is positioned and fitted with the L-shaped corner groove, the positioning groove is formed on the outer edge of the positioning part close to the wood-plastic board and is positioned and fitted with the edge corner of the flat plate part, the two cover parts are respectively formed on opposite sides of the positioning part, and the outer edges of the cover parts are aligned and distributed with the outer edge of the wood-plastic board.

[0008] Further, the plurality of wood strips constituting the clamping plate layer respectively include two end clamping plates and a plurality of inner clamping plates, the two end clamping plates are respectively arranged in the slots close to the corner blocks, and the plurality of inner clamping plates are distributed between the two end clamping plates and fill the remaining slots, the inner clamping plates are arranged in a boss structure with a first boss part, and the inner clamping plates fill the gap between the adjacent two I-shaped parts and the flat plate part, the end clamping plates are arranged in a boss structure with a second boss part, and the end clamping plates fill the gap between the I-shaped part and the corner block and the flat plate part, and the side corner part of the end clamping plate close to the corner block is further formed with a notch matched with the positioning part.

[0009] Further, the plywood capable of reducing the looseness of the interlayer further includes two veneer layers, the two veneer layers are respectively arranged on the opposite sides of the two groups of clamping plate layers, and the contact surfaces of the veneer layers and the clamping plate layers and the intermediate layer are mutually adhered and fixed.

[0010] The beneficial technical effects of the present application are: through the cooperation of the intermediate layer and the clamping plate layer, the interlayer structure of the plywood can be protected and limited by the wood-plastic plate and the corner block in the intermediate layer to the inner clamping plate and the end clamping plate in the clamping plate layer, thereby reducing the looseness between the clamping plate layer and the intermediate layer, and improving the stability and bending resistance of the interlayer structure of the plywood. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a decomposition structure diagram of the plywood capable of reducing the looseness of the interlayer according to the embodiment of the present application;

[0012] Figure 2 Figure 1 is a structure diagram of the plywood capable of reducing the looseness of the interlayer after combination;

[0013] Figure 3 is a structure diagram of the wood-plastic plate in the embodiment of the present application;

[0014] Figure 4 is a structure diagram of the corner block in the embodiment of the present application;

[0015] Figure 5 is a structure diagram of the inner clamping plate in the embodiment of the present application;

[0016] Figure 6 is a structure diagram of the end clamping plate in the embodiment of the present application.

[0017] 10, intermediate layer; 11, wood-plastic board; 111, flat plate part; 112, I-shaped part; 113, slot; 114, L-shaped corner groove; 12, corner guard; 121, positioning part; 122, covering part; 123, positioning groove; 20, clamping plate layer; 21, inner clamping plate; 211, first boss part; 22, end clamping plate; 221, second boss part; 222, notch; 30, veneer layer. DETAILED DESCRIPTION

[0018] The technical solutions of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0019] The embodiments of the present application disclose a plywood which can reduce the looseness of the interlayer. Referring to Figure 1 and Figure 2 , the plywood which can reduce the looseness of the interlayer can include an intermediate layer 10, two sets of clamping plate layers 20, and two veneer layers 30. The two sets of clamping plate layers 20 are respectively laid on opposite sides of the intermediate layer 10, and the intermediate layer 10 and the clamping plate layers 20 are adhesively fixed. The two veneer layers 30 are respectively arranged on the opposite sides of the two sets of clamping plate layers 20, and the contact surfaces of the veneer layers 30 and the clamping plate layers 20 and the intermediate layer 10 are adhesively fixed. The intermediate layer 10 and the two sets of clamping plate layers 20 constitute the interlayer structure of the plywood and are used for bearing stress of the plywood. The two veneer layers 30 can be selected according to the use of the plywood, and different layered structures in the prior art can be selected, for example, when it is necessary to improve the wear resistance of the plywood, the veneer layers 30 can be made of wear-resistant materials; when it is necessary to improve the moisture resistance of the plywood, the veneer layers 30 can be made of water-resistant materials.

[0020] Referring to Figure 3 and Figure 4 , the intermediate layer 10 can include a wood-plastic board 11 and four corner guards 12. The middle part of the wood-plastic board 11 forms a flat plate part 111 which is arranged to abut against the clamping plate layers 20, a plurality of I-shaped parts 112 are formed at intervals on the flat plate part 111, and the wood-plastic board 11 can be made by an integral molding process. The gap between the I-shaped parts 112 and the flat plate part 111 forms a slot 113, so that the clamping plate layers 20 can be inserted for laying. The four corners of the flat plate part 111 are provided with L-shaped corner grooves 114, and the four corner guards 12 are respectively inserted into the corner parts of the flat plate part 111 in a positioning and fitting manner by using the adjacent L-shaped corner grooves 114, and the corner guards 12 and the flat plate part 111 are adhesively fixed. The corner guards 12 are used to improve the anti-collision ability of the corner parts of the plywood, and can also provide protection and limiting for the parts of the clamping plate layers 20 close to the corner guards 12.

[0021] In the embodiment, the corner protection block 12 comprises a positioning portion 121, two covering portions 122 and a positioning groove 123. The positioning portion 121 is positioned and matched with the L-shaped corner groove 114 near the outer edge of the wood-plastic board 11; the positioning groove 123 is formed on the positioning portion 121 near the outer edge of the wood-plastic board 11, and the positioning groove 123 is positioned and matched with the edge corner of the flat plate portion 111, so that the corner protection block 12 can be conveniently positioned during installation and inserted at the edge corner of the flat plate portion 111. The two covering portions 122 are respectively formed on the opposite sides of the positioning portion 121, and the outer edges of the covering portions 122 are aligned with the outer edge of the wood-plastic board 11 to maintain the flatness of the outer edge of the plywood. In addition, the covering portions 122 protrude from the positioning portion 121, so that they can provide protection and positioning for the part of the plywood layer 20 near the corner protection block 12.

[0022] In the embodiment, the plurality of wood strips constituting the plywood layer 20 can respectively comprise two end clamping plates 22 and a plurality of inner clamping plates 21. The two end clamping plates 22 are respectively filled in the insertion grooves 113 near the corner protection blocks 12; and the plurality of inner clamping plates 21 are distributed between the two end clamping plates 22 and fill the remaining insertion grooves 113.

[0023] Referring to Figure 5 and Figure 6 , the inner clamping plate 21 is provided in a boss structure with a first boss portion 211; and the end clamping plate 22 is provided in a boss structure with a second boss portion 221. The inner clamping plate 21 can fill the gap between the adjacent two I-shaped portions 112 and the flat plate portion 111; and the end clamping plate 22 can fill the gap between the I-shaped portion 112 and the corner protection block 12 and the flat plate portion 111, so that the clamping layer structure of the plywood can maintain the flatness of each surface.

[0024] In the embodiment, the side corner portion of the end clamping plate 22 near the corner protection block 12 is further provided with a notch 222 which is positioned and matched with the positioning portion 121, so that the end clamping plate 22 can be positioned and matched with the corner protection block 12 after being inserted into the corresponding insertion groove 113.

[0025] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A plywood which can reduce delamination of a core, characterized by, The intermediate layer (10) and two groups of batten layers (20) are arranged on opposite sides of the intermediate layer (10), and the intermediate layer (10) and the batten layers (20) are bonded and fixed, The intermediate layer (10) comprises a wood-plastic board (11), the middle part of the wood-plastic board (11) is formed as a flat plate part (111) which is attached to the batten layer (20), a plurality of I-shaped parts (112) are formed at intervals on the flat plate part (111), and the gaps between the I-shaped parts (112) and the flat plate part (111) form insertion grooves (113) for laying the batten layer (20). The batten layer (20) comprises a plurality of wood strips, each of which is inserted into one of the insertion grooves (113) and bonded and fixed to the wood-plastic board (11).

2. The plywood capable of reducing interlayer looseness according to claim 1, wherein The intermediate layer (10) further comprises four corner protection blocks (12), each of the four corners of the flat plate part (111) is formed with an L-shaped corner groove (114), and the four corner protection blocks (12) are each inserted into the corner of the flat plate part (111) in a positioning and fitting manner by using the adjacent L-shaped corner grooves (114) and are bonded and fixed between the corner protection blocks (12) and the flat plate part (111).

3. The plywood capable of reducing interlayer looseness according to claim 2, wherein The corner protection block (12) comprises a positioning part (121), two cover parts (122), and a positioning groove (123), the positioning part (121) is positioned and fitted with the L-shaped corner groove (114) near the outer edge of the wood-plastic board (11), the positioning groove (123) is formed on the outer edge of the positioning part (121) near the wood-plastic board (11), and the positioning groove (123) is positioned and fitted with the edge corner of the flat plate part (111), and the two cover parts (122) are respectively formed on the opposite sides of the positioning part (121), and the outer edges of the cover parts (122) are aligned with the outer edge of the wood-plastic board (11).

4. The plywood capable of reducing interlayer looseness according to any one of claims 1 to 3, characterized in that, The plurality of wood strips constituting the batten layer (20) respectively comprise two end battens (22) and a plurality of inner battens (21), the two end battens (22) are respectively arranged in the insertion grooves (113) near the corner protection blocks (12), and the plurality of inner battens (21) are distributed between the two end battens (22) and fill the remaining insertion grooves (113).

5. The plywood capable of reducing interlayer looseness according to claim 4, wherein The inner batten (21) is provided with a first boss part (211) in a boss structure, and the inner batten (21) fills the gap between the adjacent two I-shaped parts (112) and the flat plate part (111).

6. The plywood capable of reducing interlayer looseness according to claim 5, wherein The end batten (22) is provided with a second boss part (221) in a boss structure, and the end batten (22) fills the gap between the I-shaped part (112) and the corner protection block (12) and the flat plate part (111).

7. The plywood capable of reducing interlayer looseness according to claim 6, wherein The side corner part of the end batten (22) near the corner protection block (12) is further formed with a notch (222) which is positioned and fitted with the positioning part (121).

8. The plywood capable of reducing interlayer looseness according to claim 1, wherein The two decorative layers (30) are respectively arranged on the opposite sides of the two groups of batten layers (20), and the contact surfaces of the decorative layers (30) and the batten layers (20) and the intermediate layer (10) are bonded and fixed.

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