CN210211635U

CN210211635U - Plywood for wall surface heat preservation

Info

Publication number: CN210211635U
Application number: CN201822150254.8U
Authority: CN
Inventors: Yijie Huang; 黄以杰
Original assignee: Jiangsu Green Poplar Wood Industry Technology Co Ltd
Current assignee: Jiangsu Green Poplar Wood Industry Technology Co Ltd
Priority date: 2018-12-21
Filing date: 2018-12-21
Publication date: 2020-03-31
Anticipated expiration: 2028-12-21

Abstract

The utility model relates to the technical field of plywood, in particular to plywood for wall surface heat preservation, which comprises a plywood body, a surface paint layer, a base plate, a glass fiber net layer, a sound absorption layer, a heat preservation layer, a metal net layer, a bottom plate, a convex edge and a concave edge; the surface paint layer is arranged on the uppermost layer, the base plate is arranged under the surface paint layer, the glass fiber net layer is arranged under the base plate, the bottom plate is arranged under the metal net layer, the bottom plate is positioned on the lowermost layer, all the plates are tightly attached, one side edge of the plywood is provided with a convex edge which is in a step shape, the other side edge of the plywood is provided with a concave edge, and the convex edge is matched with the concave edge; the polyurethane material heat conductivity coefficient of this plywood is low, has the combination of fine heat preservation flame retardant efficiency convex edge and concave edge and makes plywood installation area of contact improve greatly, and the concatenation installation is more firm, and this plywood has good heat preservation sound absorption flame retardant efficiency.

Description

Plywood for wall surface heat preservation

Technical Field

The utility model relates to a plywood technical field specifically is a be used for heat retaining plywood of wall.

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.

The plywood is one of common furniture materials, is one of three large plates of an artificial plate, and can also be used as a material for airplanes, ships, trains, automobiles, buildings, packing boxes and the like. A group of veneers are typically assembled and glued perpendicular to each other in the direction of the adjacent layers of wood grain, and the skins and inner sheets are typically symmetrically disposed on either side of the center layer or core. The glued veneer is pressed into the wood grain board blank by the criss-cross matching of the glued veneer according to the wood grain direction under the condition of heating or not heating. The number of layers is generally odd, and a few are even. The difference of physical and mechanical properties in the longitudinal and transverse directions is small. The types of plywood commonly used are plywood, plywood and the like. The plywood can improve the utilization rate of the wood and is a main way for saving the wood.

Because the existing plywood on the market is formed by pressing and gluing a plurality of layers of veneer veneers, the finished plywood has single function and lacks the plywood with good heat insulation performance used on the wall surface.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims at: provides a plywood for wall surface heat preservation, which solves the problems existing in the prior art in the background technology.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a plywood for wall surface heat insulation comprises a plywood body, a surface paint layer, a base plate, a glass fiber net layer, a sound absorption layer, a heat insulation layer, a metal net layer, a bottom plate, a convex edge and a concave edge; the top layer is located on the surface paint layer, the base plate is located under the surface paint layer, the glass fiber net layer is located under the base plate, the sound absorption layer is located under the glass fiber layer, the heat preservation layer is located under the sound absorption layer, the metal net layer is located under the heat preservation layer, the base plate is located under the metal net layer, the base plate is located at the lowest layer, and each inter-plate closely laminates, plywood one side edge is equipped with the protruding limit, the protruding limit is the echelonment, plywood opposite side edge is equipped with the concave limit, the protruding limit with the concave limit matches.

Preferably, the metal mesh layer is a stainless steel metal mesh.

Preferably, the surface paint layer is an environment-friendly paint.

Preferably, the heat insulation layer is a polyurethane heat insulation plate, and a flame retardant is added into the polyurethane heat insulation plate.

Preferably, the base plate and the bottom plate are single-layer plates.

Preferably, the sound absorption layer material is centrifugal glass wool.

Preferably, the plywood layers are tightly bonded by phenolic glue.

(III) advantageous effects

The metal net layer arranged on the plywood can greatly improve the strength and hardness of the plywood, and the environment-friendly paint is environment-friendly and low in formaldehyde content, thereby being an excellent choice for household decorative boards; the heat-insulating layer is a polyurethane heat-insulating plate, the polyurethane material has low heat conductivity coefficient, and a flame retardant is added, so that the heat-insulating and flame-retardant effect is good, and no harmful gas is generated at high temperature; the centrifugal glass wool of the sound absorption layer has excellent sound absorption performance; the combination of the convex edges and the concave edges greatly improves the installation contact area of the plywood, the splicing installation is firmer, and the plywood has good heat-preservation, sound-absorption and flame-retardant effects.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the schematic diagram of the convex edge and the concave edge splicing of the present invention.

In the figure: 1 plywood, 2 surface paint layers, 3 base plate layers, 4 glass fiber net layers, 5 sound absorption layers, 6 heat preservation layers, 7 metal net layers, 8 bottom plate layers, 9 convex edges and 10 concave edges.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

a plywood used for wall surface heat preservation is shown in figures 1 and 2 and comprises a plywood 1, a surface paint layer 2, a base plate 3, a glass fiber net layer 4, a sound absorption layer 5, a heat preservation layer 6, a metal net layer 7, a bottom plate 8, raised strip edges 9 and concave strip edges 10; the superiors are located to the top coat layer 2, base plate layer 3 locates under base plate layer 3, sound absorbing layer 5 locates under glass fiber layer 4, heat preservation 6 locates under sound absorbing layer 5, metal mesh layer 7 locates under heat preservation 6, base plate layer 8 locates under metal mesh layer 7, base plate layer 8 is in the lowest layer, 1 side edge of plywood is equipped with convex strip limit 9, convex strip limit 9 is the echelonment, plywood opposite side edge is equipped with concave strip limit 10, convex strip limit 9 and concave strip limit 10 phase-match.

The metal mesh layer 7 is a stainless steel metal mesh, so that the strength and hardness of the plywood can be greatly improved.

The surface paint layer 2 is environment-friendly paint, is environment-friendly, has low formaldehyde content, and is an excellent choice for household decorative boards.

The layers are tightly adhered by phenolic glue, and the phenolic glue has the advantages of good heat resistance, strong adhesion, good aging resistance and excellent electrical insulation.

The heat insulation layer 6 is a polyurethane heat insulation plate, and a flame retardant is added into the polyurethane heat insulation plate;

the polyurethane insulation board has the advantages that: 1. the hard polyurethane plate has low heat conductivity coefficient and good thermal performance. When the volume weight of the hard polyurethane is 35-40 kg/m3, the heat conductivity coefficient is only 0.018 g-0.023 w/(m.k), which is about half of EPS, and is the lowest heat conductivity coefficient of all heat insulation materials.

2. The hard polyurethane board has the moisture-proof and waterproof performances. The hard polyurethane has a closed pore rate of more than 90 percent, belongs to a hydrophobic material, does not increase the heat conductivity coefficient due to moisture absorption, and does not seep water on the wall surface.

3. The hard polyurethane is fireproof, flame retardant and high temperature resistant. After the flame retardant is added, the polyurethane is a flame-retardant self-extinguishing material, the softening point of the polyurethane can reach more than 250 ℃, and the polyurethane can be decomposed only at higher temperature: in addition, the polyurethane forms ash on its foam surface when burned, which helps to insulate the underlying foam. Can effectively prevent the fire from spreading. Moreover, polyurethane does not produce harmful gases at high temperatures.

4. Because the polyurethane board has excellent heat-insulating property, the thickness of the building outer enclosing structure can be reduced under the condition of meeting the same heat-insulating requirement, thereby increasing the indoor use area.

5. Strong deformation resistance, difficult cracking, stable and safe facing.

The base plate 3 and the bottom plate 8 are single-layer plates.

The sound absorption layer 5 is made of centrifugal glass wool, and the centrifugal glass wool is proved to have excellent sound absorption performance as an acoustic material which is widely applied all over the world for a long time.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The plywood for wall surface heat insulation is characterized by comprising a plywood (1), a surface paint layer (2), a base plate (3), a glass fiber net layer (4), a sound absorption layer (5), a heat insulation layer (6), a metal net layer (7), a bottom plate (8), a convex edge (9) and a concave strip edge (10); the top coat layer (2) is arranged on the uppermost layer, the base plate (3) is arranged under the top coat layer (2), the glass fiber net layer (4) is arranged under the base plate (3), the sound absorption layer (5) is arranged under the glass fiber net layer (4), the heat preservation layer (6) is arranged under the sound absorption layer (5), the metal net layer (7) is arranged under the heat preservation layer (6), the bottom plate (8) is arranged under the metal net layer (7), the bottom plate (8) is arranged at the lowest layer, one side edge of the plywood (1) is provided with the convex edge (9), the convex edge (9) is in a step shape, the other side edge of the plywood is provided with the concave edge (10), and the convex edge (9) is matched with the concave edge (10).

2. Plywood for wall insulation according to claim 1, characterized in that: the metal net layer (7) is a stainless steel metal net.

3. Plywood for wall insulation according to claim 1, characterized in that: the surface paint layer (2) is environment-friendly paint.

4. Plywood for wall insulation according to claim 1, characterized in that: the heat insulation layer (6) is a polyurethane heat insulation plate, and a flame retardant is added into the polyurethane heat insulation plate.

5. Plywood for wall insulation according to claim 1, characterized in that: the base plate (3) and the bottom plate (8) are single-layer plates.

6. Plywood for wall insulation according to claim 1, characterized in that: the sound absorption layer (5) is made of centrifugal glass wool.

7. Plywood for wall insulation according to claim 1, characterized in that: the plywood (1) is characterized in that all the layers are tightly bonded by phenolic glue.