Thin pressure-resistant plywood

Abstract

The utility model discloses a thin pressure-resistant plywood which comprises a base plate layer, the base plate layer comprises an upper base plate and a lower base plate, hollow holes are formed in the upper base plate and the lower base plate, pressure-resistant packed columns are arranged in the hollow holes, and a first adhesive layer is arranged between the upper base plate and the lower base plate; the pressure-resistant plywood has the advantages that the double-layer base plate is used for enhancing the pressure resistance of the plywood, the double-layer base plate is matched with the pressure-resistant layer and the pressure-resistant packed columns to enhance the internal pressure resistance, the pressure-resistant plywood has high pressure resistance, meanwhile, the number of layers of the plywood is reduced, and the pressure-resistant plywood has the strength of a multi-layer board and is far lower than a traditional multi-layer board in weight.

Description

Technical Field

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

[0002] Plywood is a board made of multiple layers of thin wood or other wood materials bonded together by glue. Its background can be traced back to the early 20th century, when people began to look for a more economical and stable alternative to solid wood. Plywood has gradually become one of the most commonly used boards in the construction, furniture and packaging industries due to its superior performance and wide range of applications. The production process of plywood usually includes the following steps: First, the raw wood chips are peeled, cut and trimmed to give them a certain size and flatness. Then, the wood chips are arranged according to the requirements of the grain direction and the number of layers, and then glued together by applying glue. Finally, the plywood is pressed and dried to ensure that the glue is fully cured and the board is stable.

[0003] Plywood is usually made of multiple layers of wood stacked crosswise, and each layer needs to be bonded with adhesive. Such a multi-layer structure will increase the weight of the plywood. In addition, the raw material of plywood is wood. The thickness and density of the wood itself also make the overall weight of the plywood higher after gluing, which makes it inconvenient to move during transportation and subsequent cutting. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is that plywood is usually made of multiple layers of wood stacked crosswise, and each layer needs to be bonded with adhesive. Such a multi-layer structure will increase the weight of the plywood. In addition, the raw material of the plywood is wood. The thickness and density of the wood itself also make the overall weight of the plywood higher after gluing. It is inconvenient to move during transportation or subsequent cutting.

[0006] (II) Technical solution

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

[0008] A thin pressure-resistant plywood comprises a substrate layer, wherein the substrate layer comprises an upper substrate and a lower substrate, wherein hollow holes are formed in the upper substrate and the lower substrate, wherein pressure-resistant filling columns are arranged in the hollow holes, wherein a first adhesive layer is arranged between the upper substrate and the lower substrate, wherein pressure-resistant layers are arranged on both sides of the substrate layer, wherein a second adhesive layer is arranged between the pressure-resistant layer and the substrate layer, wherein a second hollow hole is formed in the pressure-resistant layer, and wherein an outer plate layer is arranged on the outer surface of the pressure-resistant layer.

[0009] Furthermore, the upper substrate has the same structure as the lower substrate, and the pressure-resistant filling column is made of carbon fiber.

[0010] Furthermore, one end of the pressure-resistant filling column passes through the substrate layer and the pressure-resistant layer and is fixedly connected to the outer plate layer.

[0011] Furthermore, a plug hole is provided on one side of the outer plate layer close to the pressure-resistant layer, and one end of the pressure-resistant filling column is fixedly connected to the plug hole.

[0012] Furthermore, a third adhesive layer is provided between the outer plate layer and the pressure-resistant layer.

[0013] Furthermore, the second hollow hole has the same diameter as the first hollow hole, and the second hollow hole passes through the pressure-resistant layer.

[0014] Furthermore, the pressure-resistant layer is made of a hard plastic board, the base board layer is made of a poplar board, and the outer board layer is made of an oak board.

[0015] (III) Beneficial effects

[0016] The beneficial effects of the utility model are:

[0017] A double-layer base plate is used to enhance the pressure resistance of the plywood, and the pressure-resistant layer and pressure-resistant filling column are used to enhance the internal pressure resistance, so it has high pressure resistance. At the same time, the number of plywood layers is reduced, so that it has the strength of a multi-layer board while its weight is much lower than that of a traditional multi-layer board. The overall weight is further reduced by hollowing out, making it lighter and easier to carry during use and processing. It is thin and light during use and has high versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a side view of the utility model;

[0020] Figure 3 It is the AA section view;

[0021] Figure 4 It is an exploded view of the utility model;

[0022] Figure 5 is a schematic diagram of the substrate layer structure;

[0023] Markings in the figure: 1-substrate layer, 2-hollow hole, 3-pressure-resistant filling column, 4-first adhesive layer, 5-pressure-resistant layer, 6-second adhesive layer, 7-outer plate layer, 8-third adhesive layer, 1a-upper substrate, 1b-lower substrate, 5a-second hollow hole, 7a-plug hole. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] See also Figure 1-5 A thin pressure-resistant plywood shown in the figure includes a substrate layer 1, the substrate layer 1 includes an upper substrate 1a and a lower substrate 1b, hollow holes 2 are opened in the upper substrate 1a and the lower substrate 1b, pressure-resistant filling columns 3 are arranged in the hollow holes 2, a first adhesive layer 4 is arranged between the upper substrate 1a and the lower substrate 1b, pressure-resistant layers 5 are arranged on both sides of the substrate layer 1, a second adhesive layer 6 is arranged between the pressure-resistant layer 5 and the substrate layer 1, a second hollow hole 5a is opened in the pressure-resistant layer 5, and an outer plate layer 7 is arranged on the outer surface of the pressure-resistant layer 5.

[0027] The upper base plate 1a has the same structure as the lower base plate 1b, and adopts a double base plate structure, replacing the traditional odd-numbered plates and combining with the external plates to reduce the plywood body to reduce weight. The pressure-resistant filling column 3 is made of carbon fiber, which is a composite material composed of carbon fiber bundles and has the characteristics of light weight, high strength and corrosion resistance. Its density is only one-fourth of that of steel to reduce weight and increase strength.

[0028] One end of the pressure-resistant filling column 3 passes through the substrate layer 1 and the pressure-resistant layer 5 and is fixedly connected to the outer plate layer 7. One end of the pressure-resistant filling column 3 is fixed in the upper substrate 1a and the lower substrate 1b, and the other end is fixedly connected to the outer plate layer 7 on the surface, providing support for each layer, greatly improving its pressure resistance performance, and at the same time reducing the number of plate layers to make the plate body lightweight.

[0029] An inserting hole 7a is provided on one side of the outer plate layer 7 close to the pressure-resistant layer 5, and one end of the pressure-resistant filling column 3 is fixedly connected to the inserting hole 7a. Adhesive is also applied in the inserting hole to assist the connection.

[0030] A third adhesive layer 8 is provided between the outer plate layer 7 and the pressure-resistant layer 5 , and the outer plate layer 7 and the pressure-resistant layer 5 are connected via the third adhesive layer 8 .

[0031] The second hollow hole 5a has the same diameter as the hollow hole 2. The second hollow hole 5a penetrates the pressure-resistant layer 5. The pressure-resistant filling column 3 starts from the hollow hole 2, penetrates the pressure-resistant layer 5, the second adhesive layer 6 and the third adhesive layer 8 through the second hollow hole 5a, and is connected to the plug hole 7a.

[0032] The pressure-resistant layer 5 is made of a hard plastic board, the base layer 1 is made of a poplar board, and the outer board layer 7 is made of an oak board.

[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 thin pressure-resistant plywood, Features: The invention comprises a substrate layer (1), wherein the substrate layer (1) comprises an upper substrate (1a) and a lower substrate (1b), wherein hollow holes (2) are provided in the upper substrate (1a) and the lower substrate (1b), wherein pressure-resistant filling columns (3) are provided in the hollow holes (2), wherein a first adhesive layer (4) is provided between the upper substrate (1a) and the lower substrate (1b), wherein pressure-resistant layers (5) are provided on both sides of the substrate layer (1), wherein a second adhesive layer (6) is provided between the pressure-resistant layer (5) and the substrate layer (1), wherein a second hollow hole (5a) is provided in the pressure-resistant layer (5), and wherein an outer plate layer (7) is provided on the outer surface of the pressure-resistant layer (5).

2. A thin pressure-resistant plywood according to claim 1, Features: The upper substrate (1a) and the lower substrate (1b) have the same structure, and the pressure-resistant filling column (3) is made of carbon fiber.

3. A thin pressure-resistant plywood according to claim 1, Features: One end of the pressure-resistant filling column (3) penetrates the substrate layer (1) and the pressure-resistant layer (5) and is fixedly connected to the outer plate layer (7).

4. The thin pressure-resistant plywood according to claim 1, Features: A plug hole (7a) is provided on one side of the outer plate layer (7) close to the pressure-resistant layer (5), and one end of the pressure-resistant filling column (3) is fixedly connected to the plug hole (7a).

5. The thin pressure-resistant plywood according to claim 1, Features: A third adhesive layer (8) is provided between the outer plate layer (7) and the pressure-resistant layer (5).

6. The thin pressure-resistant plywood according to claim 1, Features: The second hollow hole (5a) has the same diameter as the hollow hole (2), and the second hollow hole (5a) passes through the pressure-resistant layer (5).

7. The thin pressure-resistant plywood according to claim 1, Features: The pressure-resistant layer (5) is made of a hard plastic board, the base plate layer (1) is made of a poplar board, and the outer board layer (7) is made of an oak board.

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