Pressure-resistant light plywood

Abstract

The utility model discloses a pressure-resistant type light plywood which comprises a core plate, a plurality of hollow grooves are formed in the core plate, the hollow grooves are filled with light padding, a heat insulation plate is arranged on the outer surface of the core plate and is in a rectangular frame shape, a base plate layer is arranged in the heat insulation plate, a pressure-resistant plate is arranged on the outer surface of the base plate layer, and the pressure-resistant plate is arranged on the outer surface of the base plate layer. The pressure-resistant plate is divided into two layers; the composite board has the advantages that the aluminum alloy is adopted as the core board, the pressure resistance is improved, the weight is low, the pressure-resistant board is fixed through the heat insulation board structure, the weight of the pressure-resistant board is lower due to the fact that the pressure-resistant board is made of foamed plastic, and the composite board is different from a traditional plywood formed by pressing wood, and the outer surface and the inner portion of the composite board are still made of traditional boards.

Description

Technical Field

[0001] The utility model relates to the field of plywood manufacturing, in particular to a pressure-resistant light-weight plywood. Background Art

[0002] Plywood is a board made of multiple layers of thin wood that are glued together. The production process is to stagger the thin wood in the direction of the grain, then glue them together, and finally treat them with high temperature and pressure to cure the glue and form a strong board.

[0003] Compared with single boards of other materials, plywood is made of at least three layers of boards glued together, with three and five layers being the most common. Therefore, plywood has a higher density and weight, making it inconvenient to carry and install. At the same time, its production cost is higher. If the weight is reduced, the pressure resistance and structural stability of the plywood itself will be reduced, causing the board to be fragile and easy to break and deform. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is that the plywood has a large density and a heavy weight, which is not convenient for transportation and installation, and the production cost is also high. If the weight is reduced, the pressure resistance and structural stability of the plywood itself will be reduced, causing the board to be fragile and easy to break and deform.

[0006] (II) Technical solution

[0007] In order to solve the above problems, the utility model provides the following technical solutions:

[0008] A pressure-resistant lightweight plywood comprises a core board, a plurality of hollow grooves are opened in the core board, the hollow grooves are filled with lightweight fillers, an insulation board is arranged on the outer surface of the core board, the insulation board is in the shape of a rectangular frame, a pad layer is arranged inside the insulation board, a pressure-resistant board is arranged on the outer surface of the pad layer, the pressure-resistant board has two layers, including a connecting layer and a surface layer, the connecting layer is fixedly connected to the pad layer, a leveling layer is arranged on the outer surface of the pressure-resistant board, the surface layer is fixedly connected to the leveling layer, and a surface board is arranged on the outer surface of the leveling layer.

[0009] Furthermore, the core plate is an aluminum alloy plate, and the hollow grooves are evenly distributed along the core plate in a honeycomb shape.

[0010] Furthermore, the lightweight filler is hollow microspheres.

[0011] Furthermore, the heat insulation board is an EPS board, which is fixedly connected to the core board.

[0012] Furthermore, the pad layer is a pine board, the pad layer is fixedly connected to the pressure-resistant plate, and the thickness of the pressure-resistant plate is greater than that of the pad layer.

[0013] Furthermore, the connecting layer is made of rubber material, and the surface layer is a foam plastic board.

[0014] Furthermore, the leveling layer is made of birch board, and the surface board is made of poplar board.

[0015] Furthermore, each layer of the board is fixed and bonded with epoxy resin glue.

[0016] (III) Beneficial effects

[0017] The beneficial effects of the utility model are:

[0018] Aluminum alloy is used as the core board, which has improved pressure resistance and low weight, and the pressure-resistant board is fixed by an insulation board structure. The pressure-resistant board uses foam plastic to reduce weight. Unlike traditional plywood that is pressed from wood, the outer surface and inner part of the utility model still use traditional boards, but the core is lighter and accounts for most of the entire board, which reduces the overall weight of the board, making it lightweight and having excellent pressure resistance, and is convenient for use and transportation in buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is an exploded view of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the utility model;

[0022] Markings in the figure: 1-core board, 2-lightweight filler, 3-insulation board, 4-pad, 5-pressure-resistant board, 6-leveling layer, 7-surface layer, 1a-hollow groove, 5a-connecting layer, 5b-surface layer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] See also Figure 1-3 A pressure-resistant lightweight plywood shown in the figure includes a core board 1, a plurality of hollow grooves 1a are opened in the core board 1, and the hollow grooves 1a are filled with lightweight fillers 2. An insulation board 3 is provided on the outer surface of the core board 1. The insulation board 3 is in the shape of a rectangular frame. A pad layer 4 is provided inside the insulation board 3. A pressure-resistant board 5 is provided on the outer surface of the pad layer 4. The pressure-resistant board 5 has two layers, including a connecting layer 5a and a surface layer 5b. The connecting layer 5a is fixedly connected to the pad layer 4. A leveling layer 6 is provided on the outer surface of the pressure-resistant board. The surface layer 5b is fixedly connected to the leveling layer 6. A surface board 7 is provided on the outer surface of the leveling layer 6.

[0026] The core plate 1 is an aluminum alloy plate, and the hollow grooves 1a are evenly distributed along the core plate 1 in a honeycomb shape. Aluminum alloy is used as the core plate 1. Aluminum alloy is a lightweight metal with low density and excellent pressure resistance. A large number of hollow grooves 1a are opened in the plate to further reduce the weight. The honeycomb structure does not lose its stability while greatly reducing the weight and saving production costs.

[0027] The lightweight filler 2 is hollow microbeads, which are used to fill the hollow groove 1a so that the hollow groove 1a will not be completely suspended. When the plywood is subjected to external pressure, the pad 4 will be sunken into the hollow groove 1a. By filling the lightweight filler 2, the pad 4 and the numerous board layers on the outer surface are stabilized.

[0028] The heat insulation board 3 is an EPS board, i.e. a polystyrene board, for heat insulation, which is fixedly connected to the core board 1 and is in the shape of a rectangular frame, and is used to surround the pressure-resistant board 5. Since the pressure-resistant board 5 is made of foam plastic board, its high temperature resistance is poor. Therefore, the heat insulation board 3 is used as protection while isolating the heat exchange with the outside. When the external heat is high, the pressure-resistant board 5 is isolated from absorbing external heat.

[0029] The pad layer 4 is a pine board, which is fixedly connected to the pressure-resistant plate 5. The thickness of the pressure-resistant plate 5 is greater than that of the pad layer 4. The pad layer 4 supports and buffers the core board 1 and the pressure-resistant plate 5, so that the two surfaces of the pressure-resistant plate 5 are both relatively flat, thereby improving its service life.

[0030] The connecting layer 5a is made of rubber and the surface layer 5b is a foam plastic board. The connecting layer 5a is made of rubber and is in contact with the pad 4. When the plywood as a whole is subjected to pressure, the surface layer 5b provides higher pressure resistance and is used to absorb part of the pressure and buffer the release through the connecting layer 5a.

[0031] The leveling layer 6 is made of birch board material. The leveling layer 6 has similar functions to the pad layer 4, both of which provide a flat board surface for the pressure-resistant board 5. The birch board material and the pine board material are relatively low in weight, which further improves the overall lightweight of the plywood. The surface board 7 is a poplar board with a traditional plywood structure as the surface board structure.

[0032] Each layer of board is fixed and bonded with epoxy resin glue. Like traditional boards, each layer of board is still glued together to form plywood.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pressure-resistant lightweight plywood, characterized in that: The invention comprises a core plate (1), wherein a plurality of hollow grooves (1a) are formed in the core plate (1), wherein the hollow grooves (1a) are filled with light fillers (2), wherein a heat insulation plate (3) is provided on the outer surface of the core plate (1), wherein the heat insulation plate (3) is in the shape of a rectangular frame, wherein a pad layer (4) is provided inside the heat insulation plate (3), wherein a pressure-resistant plate (5) is provided on the outer surface of the pad layer (4), wherein the pressure-resistant plate (5) is composed of two layers, including a connecting layer (5a) and a surface layer (5b), wherein the connecting layer (5a) is fixedly connected to the pad layer (4), wherein a leveling layer (6) is provided on the outer surface of the pressure-resistant plate, wherein the surface layer (5b) is fixedly connected to the leveling layer (6), and wherein a surface plate (7) is provided on the outer surface of the leveling layer (6).

2. The pressure-resistant lightweight plywood according to claim 1, characterized in that: The core plate (1) is an aluminum alloy plate, and the hollow grooves (1a) are evenly distributed along the core plate (1) in a honeycomb shape.

3. The pressure-resistant lightweight plywood according to claim 1, characterized in that: The light filler (2) is hollow microspheres.

4. The pressure-resistant lightweight plywood according to claim 1, characterized in that: The heat insulation board (3) is an EPS board, which is fixedly connected to the core board (1).

5. The pressure-resistant lightweight plywood according to claim 1, characterized in that: The backing plate layer (4) is a pine board, the backing plate layer (4) is fixedly connected to the pressure-resistant plate (5), and the thickness of the pressure-resistant plate (5) is greater than that of the backing plate layer (4).

6. The pressure-resistant lightweight plywood according to claim 1, characterized in that: The connecting layer (5a) is made of rubber material, and the surface layer (5b) is a foam plastic board.

7. The pressure-resistant lightweight plywood according to claim 1, characterized in that: The leveling layer (6) is made of birch board, and the surface board (7) is made of poplar board.

8. The pressure-resistant lightweight plywood according to claim 1, characterized in that: Each layer of board is fixed and bonded with epoxy resin glue.

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