High-strength plywood with anti-deformation structure

Abstract

The high-strength plywood comprises a center layer, an upper interlayer, a lower interlayer, an upper panel and a lower panel, the center layer is arranged in the middle of the plywood, and the upper interlayer and the lower interlayer are arranged on the two opposite sides of the center layer correspondingly; protrusions inserted into the center layer are formed on the sides, facing the center layer, of the upper interlayer and the lower interlayer, the contact faces of the upper interlayer and the center layer and the contact faces of the lower interlayer and the center layer are mutually attached, bonded and fixed, and the protrusions, inserted into the center layer, of the upper interlayer and the lower interlayer are mutually attached, bonded and fixed. Through cooperative arrangement of the center layer, the upper interlayer, the lower interlayer, the upper panel and the lower panel, in the use process of the plywood, the overall strength of the plywood can be improved through the latticed staggered structure of the center layer and filling connection between the center layer and the upper interlayer and between the center layer and the lower interlayer, so that the plywood is prevented from generating large deformation in the stress use process, and the service life of the plywood is prolonged. And the service life of the plywood can be prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plywood, in particular to high-strength plywood with an anti-deformation structure. 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 made of wood segments that are rotary cut into veneers or thin wood that is planed from a wood square, and then three or more layers of the board-shaped material are glued together with adhesive.

[0003] Traditional plywood is generally single in structure and is generally composed of multiple wood boards that are hot-pressed with glue to form a complete plywood. The traditional plywood has low strength and is prone to bending deformation under load in actual use, thereby shortening the service life under load. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems in the background art, the application provides high-strength plywood with an anti-deformation structure.

[0005] The high-strength plywood with an anti-deformation structure provided by the application adopts the following technical scheme:

[0006] The high-strength plywood with an anti-deformation structure comprises a center layer, an upper interlayer, a lower interlayer, an upper panel and a lower panel. The center layer is arranged in the middle of the plywood. The upper interlayer and the lower interlayer are arranged on the opposite sides of the center layer, and the side of the upper interlayer and the lower interlayer facing the center layer is formed with a protrusion inserted into the center layer. The contact surfaces of the upper interlayer and the lower interlayer and the center layer are adhered and fixed to each other. The protrusions of the upper interlayer and the lower interlayer inserted into the center layer are adhered and fixed to each other. The side of the upper panel facing the upper interlayer is adhered and fixed to the upper interlayer. The side of the lower panel facing the lower interlayer is adhered and fixed to the lower interlayer.

[0007] Further, the center layer comprises an outer frame portion, a plurality of first reinforcing segments and a plurality of second reinforcing segments. The outer frame portion is arranged in a hollow structure. The plurality of first reinforcing segments and the plurality of second reinforcing segments are formed on the inner side of the outer frame portion, and the plurality of first reinforcing segments and the plurality of second reinforcing segments are distributed perpendicular to each other. An inner positioning groove is formed between adjacent first reinforcing segments and second reinforcing segments. An edge positioning groove is formed between adjacent first reinforcing segments, second reinforcing segments and the inner wall of the outer frame portion.

[0008] Further, the plurality of first reinforcing segments and the plurality of second reinforcing segments are arranged along two mutually perpendicular diagonal lines of the outer frame portion respectively, and the length of each first reinforcing segment or second reinforcing segment in the plurality of first reinforcing segments or second reinforcing segments gradually decreases from the center of the outer frame portion to the inner edge of the outer frame portion.

[0009] Further, the inner positioning slot is a prismatic slot, and the edge positioning slot is a triangular slot.

[0010] Further, the center layer is an integrally formed plastic frame structure.

[0011] Further, the upper interlayer or the lower interlayer each includes a flat pad portion, a plurality of inner side inserts, and a plurality of edge inserts, the plurality of inner side inserts and edge inserts are each formed on a side of the flat pad portion facing the center layer, and each inner side insert is inserted into a corresponding adjacent inner positioning slot, and each edge insert is inserted into a corresponding adjacent edge positioning slot.

[0012] Further, the upper interlayer or the lower interlayer is an integrally formed wood-plastic layer.

[0013] The beneficial technical effects of the present application are that, through the cooperative arrangement of the center layer, the upper interlayer, the lower interlayer, the upper panel, and the lower panel, the plywood can utilize the grid-like staggered structure of the center layer and the filling connection between the center layer and the upper interlayer and the lower interlayer to improve the overall strength of the plywood, so as to prevent the plywood from deforming greatly during use, and to improve the service life of the plywood. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic exploded view of a high-strength plywood with an anti-deformation structure according to an embodiment of the present application;

[0015] Figure 2 is Figure 1 is a sectional view of a high-strength plywood with an anti-deformation structure;

[0016] Figure 3 is a schematic view of a center layer in an embodiment of the present application;

[0017] Figure 4 is a schematic view of an upper interlayer or a lower interlayer in an embodiment of the present application.

[0018] Reference signs: 1, center layer; 11, outer frame portion; 12, first reinforcing segment; 13, second reinforcing segment; 14, inner positioning slot; 15, edge positioning slot; 2, upper interlayer; 3, lower interlayer; 4, upper panel; 5, lower panel; 6, flat pad portion; 7, inner side insert; 8, edge insert. DETAILED DESCRIPTION

[0019] The technical solutions of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are 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.

[0020] The embodiments of the present application disclose a high-strength plywood with an anti-deformation structure. Referring to Figure 1 and Figure 2 , the high-strength plywood with an anti-deformation structure comprises a center layer 1, an upper interlayer 2, a lower interlayer 3, an upper panel 4 and a lower panel 5. The center layer 1 is arranged in the middle of the plywood, the upper interlayer 2 and the lower interlayer 3 are arranged on the opposite sides of the center layer 1 respectively, and the upper interlayer 2 and the lower interlayer 3 are formed with protrusions inserted into the center layer 1 on the side facing the center layer 1. The contact surfaces of the upper interlayer 2 and the lower interlayer 3 and the center layer 1 are adhered and fixed to each other, and the protrusions of the upper interlayer 2 and the lower interlayer 3 inserted into the center layer 1 are adhered and fixed to each other. The side of the upper panel 4 facing the upper interlayer 2 is adhered and fixed to the upper interlayer 2, and the side of the lower panel 5 facing the lower interlayer 3 is adhered and fixed to the lower interlayer 3, so that the center layer 1, the upper interlayer 2, the lower interlayer 3, the upper panel 4 and the lower panel 5 are glued to form a complete plywood.

[0021] Referring to Figure 3 , the center layer 1 comprises an outer frame part 11, a plurality of first reinforcing segments 12 and a plurality of second reinforcing segments 13, and the center layer 1 can be made into a plastic frame structure by an integral molding process. The outer frame part 11 forms a hollow rectangular frame structure, the plurality of first reinforcing segments 12 and the plurality of second reinforcing segments 13 are formed on the inner side of the outer frame part 11, and the plurality of first reinforcing segments 12 and the plurality of second reinforcing segments 13 are distributed perpendicular to each other. In Figure 3 , the plurality of first reinforcing segments 12 and the plurality of second reinforcing segments 13 are arranged along two mutually perpendicular diagonal lines of the outer frame part 11 respectively, and the length of each first reinforcing segment 12 or second reinforcing segment 13 in the plurality of first reinforcing segments 12 or second reinforcing segments 13 from near the center of the outer frame part 11 to near the inner edge of the outer frame part 11 gradually decreases. With the arrangement of the plurality of first reinforcing segments 12 and the plurality of second reinforcing segments 13 in the outer frame part 11, the hollow cavity in the outer frame part 11 can be divided, so that the inner positioning grooves 14 are formed between adjacent first reinforcing segments 12 and second reinforcing segments 13, the edge positioning grooves 15 are formed between adjacent first reinforcing segments 12, second reinforcing segments 13 and the inner wall of the outer frame part 11, and the inner positioning grooves 14 can be formed into prismatic grooves and the edge positioning grooves 15 can be formed into triangular grooves.

[0022] Referring to Figure 4The upper interlayer 2 or the lower interlayer 3 each comprises a flat pad portion 6, a plurality of inner side blocks 7 and a plurality of edge blocks 8, and is provided in a two-layer symmetrical structure. The upper interlayer 2 or the lower interlayer 3 can be made of wood-plastic material by an integral molding process. The wood-plastic composite material can be made of polyethylene, polypropylene, polyvinyl chloride and the like, and mixed with more than 35%-70% of wood powder, rice husk, straw and other waste plant fibers to form a new wood material. The wood-plastic composite material contains plastic, and thus has a good elastic modulus. In addition, the wood-plastic composite material contains fibers and is fully mixed with plastic, and thus has physical and mechanical properties such as compression resistance and bending resistance comparable to those of hard wood. The flat pad portion 6 can be aligned with the outer frame portion 11, the upper panel 4 and the lower panel 5 at the outer edge, and a plurality of inner side blocks 7 and edge blocks 8 are formed on the side of the flat pad portion 6 facing the center layer 1. Each inner side block 7 is inserted into the adjacent inner side positioning groove 14 in a matched manner, and each edge block 8 is inserted into the adjacent edge positioning groove 15 in a matched manner. The inner side blocks 7 and the edge blocks 8 are each half the depth of the inner side positioning groove 14 and the edge positioning groove 15, so that the upper interlayer 2 or the lower interlayer 3 can fill the inner cavity gap after being inserted on the opposite sides of the center layer 1.

[0023] In the present embodiment, the upper panel 4 or the lower panel 5 can be cut from a common thin wood board in the prior art.

[0024] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A high-strength plywood having an anti-deformation structure, comprising an upper panel (4) and a lower panel (5), characterized in that, The center layer (1), the upper interlayer (2) and the lower interlayer (3) are arranged, the center layer (1) is arranged in the middle of the plywood, the upper interlayer (2) and the lower interlayer (3) are arranged on the opposite sides of the center layer (1) respectively, and the upper interlayer (2) and the lower interlayer (3) are formed with protrusions inserted into the center layer (1) on the side facing the center layer (1), the contact surfaces of the upper interlayer (2) and the lower interlayer (3) and the center layer (1) are adhered and fixed, the protrusions of the upper interlayer (2) and the lower interlayer (3) inserted into the center layer (1) are adhered and fixed, the side of the upper panel (4) facing the upper interlayer (2) is adhered and fixed with the upper interlayer (2), and the side of the lower panel (5) facing the lower interlayer (3) is adhered and fixed with the lower interlayer (3).

2. The high-strength plywood having a deformation-resistant structure according to claim 1, wherein The center layer (1) comprises an outer frame portion (11), a plurality of first reinforcing sections (12) and a plurality of second reinforcing sections (13), the outer frame portion (11) is arranged as a hollow structure, the plurality of first reinforcing sections (12) and the plurality of second reinforcing sections (13) are formed on the inner side of the outer frame portion (11), and the plurality of first reinforcing sections (12) and the plurality of second reinforcing sections (13) are distributed perpendicular to each other, and the inner positioning grooves (14) are formed between the adjacent first reinforcing sections (12) and the second reinforcing sections (13).

3. The high-strength plywood having a deformation-resistant structure according to claim 2, characterized by The plurality of first reinforcing sections (12) and the plurality of second reinforcing sections (13) are arranged along two mutually perpendicular diagonal lines of the outer frame portion (11) respectively.

4. The high-strength plywood having a deformation-resistant structure according to claim 3, characterized by The length of each first reinforcing section (12) or second reinforcing section (13) from the center of the outer frame portion (11) to the inner edge of the outer frame portion (11) gradually shortens.

5. The high-strength plywood having a deformation-resistant structure according to claim 4, wherein The inner positioning groove (14) is arranged as a prismatic groove, and the edge positioning groove (15) is arranged as a triangular groove.

6. A high-strength plywood having a deformation-resistant structure according to any one of claims 2 to 5, wherein The center layer (1) is arranged as an integrally formed plastic frame structure.

7. The high-strength plywood having a deformation-resistant structure according to claim 6, wherein The upper interlayer (2) or the lower interlayer (3) comprises a flat pad portion (6), a plurality of inner side insertion blocks (7) and a plurality of edge insertion blocks (8), the plurality of inner side insertion blocks (7) and edge insertion blocks (8) are formed on the side of the flat pad portion (6) facing the center layer (1), each inner side insertion block (7) is inserted into the adjacent inner positioning groove (14), and each edge insertion block (8) is inserted into the adjacent edge positioning groove (15).

8. The high-strength plywood having a deformation-resistant structure according to claim 7, wherein The upper interlayer (2) or the lower interlayer (3) is arranged as an integrally formed wood-plastic layer.

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