CN216545128U

CN216545128U - Dampproof plywood

Info

Publication number: CN216545128U
Application number: CN202123030761.6U
Authority: CN
Inventors: 倪桂平
Original assignee: Shanghai Oukai Building Decoration Engineering Co ltd
Current assignee: Shanghai Oukai Building Decoration Engineering Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-05-17
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses a moisture-proof plywood which comprises a central core board, wherein a first edge layer board is arranged above the central core board, a second edge layer board is arranged below the central core board, first adhesive layers are arranged between the first edge layer board and the central core board and between the second edge layer board and the central core board, paint-free boards are arranged above the first edge layer board and below the second edge layer board, and second adhesive layers are arranged between the first edge layer board and the paint-free boards and between the second edge layer board and the paint-free boards. This dampproofing plywood through the intraformational first water swelling sealing rod of meeting of first adhesive and the water swelling sealing rod of second meeting, can meet water swelling deformation when the disappearance waterproof ability that breaks appears in first adhesive layer to be full of all irregular surfaces, hole and the clearance of seam, avoid the inside of water infiltration plywood to cause the problem of structural strength variation, guarantee the dampproofing ability of plywood.

Description

Dampproof plywood

Technical Field

The utility model relates to the technical field of plywood, in particular to dampproof plywood.

Background

Plywood is a three-layer or multi-layer plate material made up by using wood segments and making them be rotary-cut into single board or sliced into thin wood and using adhesive to make them be glued together, and usually using odd number of layers of single board and making the fibre directions of adjacent layers of single board be mutually perpendicular.

In order to ensure the moisture-proof capacity of the plywood and ensure the structural strength of the plywood, the Chinese patent 'moisture-proof plywood' (patent number: 202021287619.2) can block most of moisture through a waterproof glue layer positioned on the outer side, a moisture-proof layer is also arranged on the outer side of the middle plate and absorbs the moisture to prevent mildew, however, the moisture is absorbed by the moisture-proof layer and still exists in the wood plate, the moisture is continuously permeated, the moisture cannot be fully absorbed, the plywood is gradually rotten and deformed, the structural strength of the plywood is influenced, the wood plate adhesion structural strength in the plywood is low, and the problem of separation is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a moistureproof plywood, which aims to solve the problems that the existing plywood in the background art has poor moistureproof capability and the wood board adhesion structural strength in the plywood is low.

In order to achieve the purpose, the utility model provides the following technical scheme: a damp-proof plywood comprises a central core board, wherein a first edge board is arranged at the position above the central core board, a second edge board is arranged at the position below the central core board, first adhesive layers are arranged between the first edge board and the central core board, paint-free boards are arranged at the positions above the first edge board and below the second edge board, second adhesive layers are arranged between the first edge board and the central core board and between the first edge board and the paint-free boards, first grooves are formed in the top and the bottom of the central core board, second grooves are formed in the bottom of the first edge board and the top of the second edge board, limiting columns are arranged at the top and the bottom of the central core board, limiting holes matched with the limiting columns are formed in the bottom of the first edge board and the top of the second edge board, a first water-swelling water-stop strip and a second water-swelling water-stop strip are arranged at the top and the bottom of the central core board, the first water-swelling water stop strip is positioned on one side of the second water-swelling water stop strip.

Preferably, the first side plate and the second side plate are fixed to the central core plate through adhesion of the first adhesive layer.

Preferably, first glue layer parcel first chance water inflation sealing rod and the second chance water inflation sealing rod, and first glue layer is filled in the inside of first recess and second recess.

Preferably, the cross section of the first groove and the cross section of the second groove are both T-shaped structures.

Preferably, first water-swelling sealing rod and second water-swelling sealing rod are the arris strip-shaped structure.

Preferably, the angle between the first water-swelling water stop and the second water-swelling water stop is degree.

Preferably, the outer wall of the paint-free plate is coated with a waterproof coating.

Preferably, the number of the limiting columns is eight, and the eight limiting columns are symmetrically arranged on the outer wall of the central core plate.

Compared with the prior art, the utility model has the beneficial effects that: this dampproofing plywood, through the intraformational first water swelling sealing rod of meeting of first adhesive and the water swelling sealing rod of second, can meet water swelling deformation when the disappearance waterproof ability breaks in first adhesive layer, and be full of all irregular surfaces of seam, hole and clearance, the inside of avoiding water infiltration plywood causes the problem of structural strength variation, guarantee the dampproofing ability of plywood, through mutually supporting of first recess and second recess, can be so that core board in the first adhesive layer infiltration, between first side plywood and the second side plywood, guarantee the fastness of adhesion.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of a core plate according to the present invention;

FIG. 3 is a front view of a first side panel of the present invention;

FIG. 4 is a front view of a second water-swellable seal of the present invention;

FIG. 5 is an enlarged view of the utility model at A in FIG. 1.

In the figure: 1. a central core board; 2. a first side plate; 3. a second side laminate; 4. a first adhesive layer; 5. a paint-free plate; 6. a second adhesive layer; 7. a first groove; 8. a second groove; 9. a limiting column; 10. a limiting hole; 11. a first water-swellable seal; 12. the second water-swelling water stop strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a dampproof plywood comprises a central core board 1, a first side plate 2 is arranged at the position above the central core board 1, a second side plate 3 is arranged at the position below the central core board 1, first adhesive layers 4 are arranged between the first side plate 2 and the central core board 1 and between the second side plate 3 and the central core board 1, the first side plate 2 and the central core board 1 are fixed by the first adhesive layers 4 in an adhesion manner, the connection strength of the first side plate 2, the second side plate 3 and the central core board 1 is ensured, paint-free boards 5 are arranged at the positions above the first side plate 2 and below the second side plate 3, a waterproof coating is coated on the outer wall of the paint-free board 5, the waterproof capability of the paint-free board 5 is ensured, so that the outer side of the plywood is dampproof, second adhesive layers 6 are arranged between the first side plate 2 and the second side plate 3 and the paint-free board 5, first grooves 7 are formed in the top and the bottom of the central core board 1, the bottom of the first edge laminate 2 and the top of the second edge laminate 3 are both provided with a second groove 8, the cross sections of the first groove 7 and the second groove 8 are both T-shaped structures, so that the first adhesive layer 4 can be fully filled in the first groove 7 and the second groove 8, the top and the bottom of the middle core 1 are both provided with eight limiting posts 9, the eight limiting posts 9 are arranged eight in total, the eight limiting posts 9 are symmetrically arranged on the outer wall of the middle core 1, so that the middle core 1, the first edge laminate 2 and the second edge laminate 3 can be fully limited, the firmness in gluing can be ensured, the connection stability caused by dislocation of the middle core 1, the first edge laminate 2 and the second edge laminate 3 can be avoided, the bottom of the first edge laminate 2 and the top of the second edge laminate 3 are both provided with limiting holes 10 matched with the limiting posts 9, the top and the bottom of the middle core 1 are both provided with a first water-swelling water-stopping strip 11 and a second water-swelling water stopping strip 12, first 4 wraps up of first water inflation sealing rod 11 and the water inflation sealing rod 12 are met to first viscose layer, and first 4 packing of viscose layer are in the inside of first recess 7 and second recess 8, first water inflation sealing rod 11 is located one side of water inflation sealing rod 12 is met to the second, first water inflation sealing rod 11 and the water inflation sealing rod 12 are the arris strip structure of meeting, and the angle between first water inflation sealing rod 11 and the water inflation sealing rod 12 of second is 90 degrees, first water inflation sealing rod 11 and the water inflation sealing rod 12 of meeting produces 2-3 times's inflation deformation after meeting water, and be full of all irregular surfaces of seam, hole and clearance, produce huge contact pressure simultaneously, thoroughly prevent the seepage.

The working principle is as follows: in the manufacturing process of the plywood, a first water-swelling water stop strip 11 and a second water-swelling water stop strip 12 are embedded on the outer wall of a middle core plate 1, the first water-swelling water stop strip 11 and the second water-swelling water stop strip 12 are vertically crossed, a first adhesive layer 4 is coated on the middle core plate 1, the first adhesive layer 4 flows into a first groove 7, the first adhesive layer 4 wraps the first water-swelling water stop strip 11 and the second water-swelling water stop strip 12, a first edge plate 2 and a second edge plate 3 cover the outer wall of the middle core plate 1, the first edge plate 2 and the second edge plate 3 extrude the first adhesive layer 4, the first adhesive layer 4 enters a second groove 8 under extrusion, the first adhesive layer 4 is filled between the middle core plate 1, the first edge plate 2 and the second edge plate 3 to realize fixation, a second adhesive layer 6 is coated on the outer walls of the first edge plate 2 and the second edge plate 3, and the paint-free plate 5 is covered on the first side plate 2 and the second side plate 3 to complete the assembly of the plywood, and the waterproof coating is coated on the paint-free plate 5, so that the paint-free plate 5 has waterproof capability.

In summary, the following steps: this dampproofing plywood, through the interior first water swelling sealing rod 11 of water swelling and the water swelling sealing rod 12 of second water swelling in first adhesive layer 4, can meet water swelling deformation when the disappearance waterproof ability breaks in first adhesive layer 4 appears, and be full of all irregular surfaces of seam, hole and clearance, the inside of avoiding water infiltration plywood causes the problem of structural strength variation, guarantee the dampproofing ability of plywood, through mutually supporting of first recess 7 and second recess 8, can make core 1 in the 4 infiltration of first adhesive layer, between first side plywood 2 and the second side plywood 3, guarantee the fastness of adhesion.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A dampproofing plywood, includes the center core board (1), its characterized in that: a first edge layer plate (2) is arranged at the position above the central core plate (1), a second edge layer plate (3) is arranged at the position below the central core plate (1), first adhesive layers (4) are arranged between the first edge layer plate (2) and the central core plate (1) and between the second edge layer plate (3) and the central core plate (1), paint-free plates (5) are arranged above the first edge layer plate (2) and below the second edge layer plate (3), second adhesive layers (6) are arranged between the first edge layer plate (2) and the paint-free plates (5) and between the second edge layer plate (3) and the paint-free plates (5), first grooves (7) are formed in the top and the bottom of the central core plate (1), second grooves (8) are formed in the bottom of the first edge layer plate (2) and the top of the second edge layer plate (3), and limiting columns (9) are arranged at the top and the bottom of the central core plate (1), the bottom of first limit plywood (2) and the top of second limit plywood (3) all seted up with spacing post (9) assorted spacing hole (10), the top and the bottom of well core board (1) all are provided with first water-swelling sealing rod (11) and second water-swelling sealing rod (12), first water-swelling sealing rod (11) are located one side of second water-swelling sealing rod (12).

2. The moisture resistant plywood of claim 1, wherein: the first side plate (2), the second side plate (3) and the central core plate (1) are fixedly adhered through a first adhesive layer (4).

3. The moisture resistant plywood of claim 1, wherein: first viscose agent layer (4) parcel is met water inflation sealing rod (11) and second and is met water inflation sealing rod (12), and first viscose agent layer (4) are filled in the inside of first recess (7) and second recess (8).

4. The moisture resistant plywood of claim 1, wherein: the cross sections of the first groove (7) and the second groove (8) are both T-shaped structures.

5. The moisture resistant plywood of claim 1, wherein: the first water-swelling water stop strip (11) and the second water-swelling water stop strip (12) are both of a prismatic strip-shaped structure.

6. The moisture resistant plywood of claim 1, wherein: the angle between the first water-swelling water stop strip (11) and the second water-swelling water stop strip (12) is 90 degrees.

7. The moisture resistant plywood of claim 1, wherein: and the outer wall of the paint-free plate (5) is coated with a waterproof coating.

8. The moisture resistant plywood of claim 1, wherein: the number of the limiting columns (9) is eight, and the eight limiting columns (9) are symmetrically arranged on the outer wall of the central core plate (1).