Volatilization-resistant moisture-proof plywood

Abstract

The utility model discloses an anti-volatilization moisture-proof plywood, which comprises a plywood main body and an outer layer sealing plate, the plywood main body comprises a core layer plate, an adhesive layer and a panel layer, a cavity is arranged between the core layer plate and the adhesive layer, an inner layer sealing plate is arranged in the cavity, the panel layer is arranged on the outer surface of the adhesive layer, and the inner layer sealing plate is arranged on the outer surface of the adhesive layer. A moisture-proof film is arranged on the outer surface of the panel layer; the plywood has the advantages that the adhesive peripheral area of the plywood body is closed by the inner-layer closing plate, an adhesive of the adhesive layer cannot be diffused to the outside air, chemical substances in the adhesive cannot cause harm to the environment and the human body, the damp-proof film is further adopted for closing, and the environment-friendly effect is achieved. And external humid air can be prevented from entering to cause corrosion and mildewing while closed protection is realized.

Description

Technical Field

[0001] The utility model relates to the field of plywood manufacturing, in particular to an anti-volatile moisture-proof plywood. Background Art

[0002] Plywood is a board made of multiple layers of thin wood bonded together with glue. It is made of three or more layers of wood veneers stacked alternately, with the wood grain direction of each layer perpendicular to each other to increase the stability and strength of the board. Plywood usually uses high-quality wood as the surface panel, while the inner layers can use lower quality wood.

[0003] Plywood is made of multiple layers of thin wood boards bonded together with glue. Therefore, during the production process, sufficient pressure must be applied to bond the layers of wood together. Unlike solid wood, due to the presence and volatility of glue, the chemicals in the glue will gradually emit to the outside, which has a certain impact on human health. Especially when plywood is used in a closed environment, it is easy to cause indoor air pollution. Plywood is sensitive to moisture. When the humidity changes, plywood will absorb moisture and expand, causing deformation, cracking and other problems. Especially when plywood is used in a humid environment, it is prone to rot and mildew. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is that due to the volatility of plywood glue, the chemical substances in the glue will gradually emit to the outside, which has a certain impact on human health. In particular, using plywood in a closed environment is prone to indoor air pollution, and plywood is sensitive to moisture. When the ambient humidity changes, the plywood will absorb moisture and expand, causing deformation, cracking and other problems. In particular, using plywood in a humid environment is prone to rot and mildew.

[0006] (II) Technical solution

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

[0008] A volatile and moisture-proof plywood comprises a plywood body and an outer closed plate, the plywood body comprises a core plate, an adhesive layer and a panel layer, a cavity is provided between the core plate layer and the adhesive layer, an inner closed plate is provided in the cavity, the panel layer is provided on the outer surface of the adhesive layer, a moisture-proof film is provided on the outer surface of the panel layer, the outer closed plate is provided on the outer surface of the moisture-proof film, the outer closed plate comprises an upper plate and a lower plate, connecting threaded holes are provided on the plywood body and the outer closed plate, and connecting bolts are provided in the connecting threaded holes.

[0009] Furthermore, the inner closing plate is in the shape of a rectangular frame and is arranged outside the adhesive layer. The inner closing plate is made of plastic.

[0010] Furthermore, the moisture-proof film is made of PVC material, and a moisture-proof coating is sprayed on the surface of the moisture-proof film.

[0011] Furthermore, the connecting threaded hole passes through the plywood body and the outer closing plate, and the plywood body and the outer closing plate are connected by bolts.

[0012] Furthermore, a bolt placement hole is provided in the lower plate, and one end of the connecting bolt is arranged in the bolt placement hole.

[0013] Furthermore, the core board layer is made of poplar wood, and the panel layer is made of birch wood.

[0014] Furthermore, the thickness of the upper plate and the lower plate is greater than that of the core plate layer and the panel layer, the lower plate is a wooden plate layer, and the upper plate is made of hard plastic material.

[0015] (III) Beneficial effects

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

[0017] Unlike traditional plywood that generally uses adhesives to bond various layers of plywood, the utility model still uses adhesives for bonding in a large area at the core, but leaves a cavity at the bonding point between the core board layer and the panel layer to fill the inner closing board, so that the bonding peripheral area of ​​the plywood body is closed by the inner closing board, and the adhesive of the adhesive layer cannot be emitted to the outside air, so that the chemical substances in the glue will not cause harm to the environment and human body, and further uses a moisture-proof film for sealing, which can not only protect against the entry of external humid air but also prevent it from decaying and mildewing. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 It is an exploded view of the utility model;

[0020] Figure 3 It is the enlarged view of local A;

[0021] Figure 4 It is a schematic diagram of the structure of the plywood body;

[0022] Figure 5 This is a schematic structural diagram of the utility model from another viewing angle;

[0023] Markings in the figure: 1-plywood body, 2-outer closing board, 3-cavity, 4-inner closing board, 5-moisture-proof membrane, 6-connecting threaded hole, 7-connecting bolt, 1a-core board, 1b-adhesive layer, 1c-face plate, 2a-upper board, 2b-lower board, 2c-bolt placement 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 1-4 The anti-volatile moisture-proof plywood shown includes a plywood body 1 and an outer closed board 2. The plywood body 1 includes a core board 1a, an adhesive layer 1b and a panel layer 1c. A cavity 3 is provided between the core board layer 1a and the adhesive layer 1b. An inner closed board 4 is provided in the cavity 3. The panel layer 1c is provided on the outer surface of the adhesive layer 1b. A moisture-proof film 5 is provided on the outer surface of the panel layer 1c. The outer closed board 2 is provided on the outer surface of the moisture-proof film 5. The outer closed board 2 includes an upper board 2a and a lower board 2b. Connecting threaded holes 6 are provided on the plywood body 1 and the outer closed board 2. Connecting bolts 7 are provided in the connecting threaded holes 6.

[0027] The inner closing plate 4 is in the shape of a rectangular frame and is arranged on the outside of the adhesive layer 1b. The inner closing plate 4 is made of plastic. The core board layer 1a and the panel layer 1c of the plywood body 1 are bonded by the adhesive layer 1b. The coating area of ​​the adhesive layer 1b leaves a gap at the edge of the core board layer 1a and the panel layer 1c, that is, the cavity 3, and the inner closing plate 4 is placed in the cavity 3 for blocking and sealing, so that the adhesive layer 1b will not contact the outside air through the edge of the board and then dissipate into the air, and the inner closing plate 4 is bolted to the plywood body 1 and the outer closing plate 2 through the connecting bolts 7, so that it is fixedly connected to the plywood body 1 and the outer closing plate 2.

[0028] The moisture-proof film 5 is made of PVC, and a moisture-proof coating is sprayed on the surface of the moisture-proof film. The moisture-proof film 5 covers the outer surface of the plywood body 1, and while being moisture-proof, it also covers the panel layer 1c to prevent the chemical substances in the glue in the adhesive layer 1b from spreading outward through the panel layer 1c.

[0029] The connecting threaded hole 6 passes through the plywood body 1 and the outer closing plate 2, and the plywood body 1 and the outer closing plate 2 are connected by bolts. The connecting threaded hole 6 passes through the plywood body 1, the outer closing plate 2 and the inner closing plate 4, and fixes the three together. The connecting bolts 7 are inserted to make a threaded connection.

[0030] See also Figure 3 and Figure 5 A bolt placement hole 2c is provided in the lower plate 2b, and the diameter of the bolt placement hole 2c is larger than the threaded hole 6, so that a placement area is formed at the joint. One end of the connecting bolt 7 is provided in the bolt placement hole 2c, and the bolt placement hole is used to place the tightening end of the connecting bolt 7, so that after the connecting bolt 7 is connected, one end thereof can be embedded in the lower plate 2b, making the appearance smooth and not abrupt.

[0031] The core board layer 1a is made of poplar wood, and the face board layer 1c is made of birch wood.

[0032] The thickness of the upper plate 2a and the lower plate 2b is greater than that of the core plate layer 1a and the panel layer 1c. The lower plate 2b is a wooden plate layer, and the upper plate 2a is made of hard plastic. The upper plate 2a is connected with connecting bolts and is connected with hard plastic.

[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. An anti-volatile moisture-proof plywood, characterized in that: The invention comprises a plywood body (1) and an outer closing board (2), wherein the plywood body (1) comprises a core board (1a), an adhesive layer (1b) and a panel layer (1c), a cavity (3) is provided between the core board (1a) and the adhesive layer (1b), an inner closing board (4) is provided in the cavity (3), the panel layer (1c) is provided on the outer surface of the adhesive layer (1b), a moisture-proof film (5) is provided on the outer surface of the panel layer (1c), the outer closing board (2) is provided on the outer surface of the moisture-proof film (5), the outer closing board (2) comprises an upper board (2a) and a lower board (2b), connecting threaded holes (6) are provided on the plywood body (1) and the outer closing board (2), and connecting bolts (7) are provided in the connecting threaded holes (6).

2. The anti-volatile moisture-proof plywood according to claim 1, characterized in that: The inner layer closing plate (4) is in the shape of a rectangular frame and is arranged outside the adhesive layer (1b). The inner layer closing plate (4) is made of plastic.

3. The anti-volatile moisture-proof plywood according to claim 1, characterized in that: The moisture-proof film (5) is made of PVC material, and a moisture-proof coating is sprayed on the surface of the moisture-proof film.

4. The anti-volatile moisture-proof plywood according to claim 1, characterized in that: The connecting threaded hole (6) passes through the plywood body (1) and the outer closing plate (2), and the plywood body (1) and the outer closing plate (2) are connected by bolts.

5. The anti-volatile moisture-proof plywood according to claim 1, characterized in that: The lower plate (2b) is provided with a bolt placement hole (2c), and one end of the connecting bolt (7) is arranged in the bolt placement hole (2c).

6. The anti-volatile moisture-proof plywood according to claim 1, characterized in that: The core board (1a) is made of poplar wood, and the face board layer (1c) is made of birch wood.

7. The anti-volatile moisture-proof plywood according to claim 1, characterized in that: The thickness of the upper plate (2a) and the lower plate (2b) is greater than that of the core plate (1a) and the panel layer (1c); the lower plate (2b) is a wooden plate layer, and the upper plate (2a) is made of hard plastic material.

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