Composite foam board

Abstract

The utility model relates to the technical field of composite foam boards, and discloses a composite foam board which comprises a composite foam board body, the composite foam board body is composed of a foam board body and protective coatings coated on two sides of the foam board body, and each protective coating comprises a flame-retardant layer, a heat preservation layer, a noise reduction layer and a protective layer. The outer side of the foam board body is coated with the flame-retardant layer, the outer side of the flame-retardant layer is coated with the heat preservation layer, the outer side of the heat preservation layer is coated with the noise reduction layer, and the outer side of the noise reduction layer is coated with the protection layer. The protective coatings are arranged on the two sides of the foam board body, so that the situation that the whole foam board burns from inside to outside due to the fact that the wall is heated on the side attached to the wall, and fire expands is effectively avoided, the safety of the composite foam board body is improved, the service life of the composite foam board body is prolonged, long-time use of the composite foam board body is facilitated, practicability is high, and the composite foam board is worthy of popularization. And the economic benefit is high.

Description

Technical Field

[0001] The utility model relates to the technical field of composite foam boards, and specifically relates to a composite foam board. Background Technique

[0002] A composite foam board is a kind of foam board composed of different materials, usually composed of foam plastics and other materials, such as cardboard, metal, etc. This composite material foam board has better strength and durability, and is suitable for various fields such as packaging, heat preservation, and heat insulation.

[0003] When building houses, composite foam boards are often used, mainly for building walls and roof insulation. Some existing composite foam boards are mainly fireproof on one side, and their flame retardant effect is poor. When encountering an open flame, although the outer side of the foam board can play a flame retardant role, the side close to the wall will cause the entire foam board to burn from the inside out due to the wall temperature rising, which will lead to the spread of the fire, resulting in casualties and property losses, and the safety is relatively low. In view of this, we propose a composite foam board to solve the above problems. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a composite foam board, which solves the problem of poor flame retardant performance of some existing composite foam boards.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: A composite foam board, including a composite foam board main body, the composite foam board main body is composed of a foam board body and protective coatings coated on both sides of the foam board body, and the protective coatings include a flame retardant layer, a heat insulation layer, a noise reduction layer, and a protective layer. The flame retardant layer is coated on the outer side of the foam board body, the heat insulation layer is coated on the outer side of the flame retardant layer, the noise reduction layer is coated on the outer side of the heat insulation layer, and the protective layer is coated on the outer side of the noise reduction layer.

[0008] Preferably, a docking groove is opened on the left surface of the composite foam board main body, and a docking rod is rotatably connected to the right surface of the composite foam board main body. The docking rod and the docking groove are adapted to each other.

[0009] Preferably, positioning grooves are opened on the inner walls of the upper and lower sides of the docking groove, and two positioning blocks are fixedly connected to the outer surface of the docking rod. The positioning blocks and the positioning grooves are adapted to each other.

[0010] Preferably, a circular groove is opened on the rear inner wall of the docking groove, and the circular groove is communicated with both the docking groove and the positioning groove.

[0011] Preferably, three grooves are provided on the inner walls of the left and right sides of the positioning groove, and three protrusions are fixedly connected to both sides of the outer surface of the docking rod, and the protrusions are adapted to the grooves.

[0012] (III) Advantageous Effects

[0013] Compared with the prior art, the present utility model provides a composite foam board, which has the following advantageous effects:

[0014] 1. For this composite foam board, the flame retardant performance of the main body of the composite foam board is improved through the setting of the protective coating, and the protective coating is provided on both sides of the foam board body, which effectively avoids the situation that the entire foam board burns from the inside out due to the wall temperature rising on the side close to the wall, resulting in the spread of the fire, improves the safety and service life of the main body of the composite foam board, facilitates the long-term use of the main body of the composite foam board, has high practicability and high economic benefits.

[0015] 2. For this composite foam board, by inserting the two docking rods rotatably connected to one main body of the composite foam board into the two docking grooves opened in the other main body of the composite foam board respectively, and then rotating the two docking rods respectively, the splicing between the two main bodies of the composite foam board is finally realized, ensuring the flatness of the surface when the main bodies of the composite foam board are spliced and avoiding the situation of dislocation. And through the cooperation of the grooves and protrusions, and the positioning blocks and circular grooves, the firmness of the splicing between the main bodies of the composite foam board is further improved, the splicing efficiency and stability between the two main bodies of the composite foam board are improved, it has high practicability and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a composite foam board of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the composite foam board of the present utility model;

[0018] Figure 3 is Figure 2 the enlarged view of part A in

[0019] Figure 4 is a schematic structural diagram of the docking groove of the present utility model;

[0020] Figure 5 is Figure 1 the enlarged view of part B in

[0021] Figure 6 is a schematic cross-sectional view of the docking groove of the present utility model.

[0022] In the figure: 1. Composite foam board body; 110. Foam board body; 120. Protection coating; 121. Flame retardant layer; 122. Thermal insulation layer; 123. Noise reduction layer; 124. Protection layer; 2. Docking groove; 3. Docking rod; 4. Positioning groove; 5. Positioning block; 6. Circular groove; 7. Groove; 8. Protrusion. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 - 6 , the present invention provides a technical solution: a composite foam board, including a composite foam board body 1, the composite foam board body 1 is composed of a foam board body 110 and a protection coating 120 coated on both sides of the foam board body 110. Aluminum hydroxide flame retardant is added inside the foam board body 110. The protection coating 120 includes a flame retardant layer 121, a thermal insulation layer 122, a noise reduction layer 123 and a protection layer 124. The flame retardant layer 121 is coated on the outer side of the foam board body 110, the thermal insulation layer 122 is coated on the outer side of the flame retardant layer 121, the noise reduction layer 123 is coated on the outer side of the thermal insulation layer 122, and the protection layer 124 is coated on the outer side of the noise reduction layer 123.

[0025] Furthermore, the flame retardant layer 121 is an alumina coating. The alumina coating can form a protective layer on the composite foam board body 1, thereby preventing the flame from directly contacting the foam substrate to provide additional protection, fire resistance, heat resistance or improve the appearance. And the melting point of the alumina coating is about 2050 °C, so that the alumina coating can withstand extremely high temperatures without melting.

[0026] Furthermore, the thermal insulation layer 122 is a polyurethane coating, which has good thermal insulation performance and can significantly reduce heat conduction and convection, thereby improving the overall thermal insulation performance of the composite foam board body 1.

[0027] Furthermore, the noise reduction layer 123 is mineral wool or glass fiber filler, which can absorb sound energy, reduce noise reflection and diffusion, and further enhance the sound insulation performance of the composite foam board body 1.

[0028] Furthermore, the protective layer 124 is a titanium dioxide coating, which can improve the anti-ultraviolet performance of the composite foam board body 1. The titanium dioxide coating can absorb ultraviolet rays, thereby reducing the damage of ultraviolet rays to the foam board, protecting the foam board from direct ultraviolet damage, extending its service life, and avoiding the influence of long-term ultraviolet irradiation on the composite foam board body.

[0029] By setting the protective coating 120, the flame retardant performance of the composite foam board body 1 is improved. And setting the protective coating 120 on both sides of the foam board body 110 can also effectively prevent the situation that the whole foam board burns from the inside out due to the wall temperature rise on the side close to the wall, resulting in the spread of fire. It improves the safety and service life of the composite foam board body 1, facilitates the long-term use of the composite foam board body 1, has high practicability and high economic benefits.

[0030] Furthermore, a docking groove 2 is formed on the left surface of the composite foam board body 1, and a docking rod 3 is rotatably connected to the right surface of the composite foam board body 1. The docking rod 3 is adapted to the docking groove 2, and the docking rod 3 can slide and rotate inside the docking groove 2.

[0031] Furthermore, positioning grooves 4 are formed on the upper and lower inner walls of the docking groove 2, and two positioning blocks 5 are fixedly connected to the outer surface of the docking rod 3. The positioning blocks 5 are adapted to the positioning grooves 4.

[0032] Furthermore, a circular groove 6 is formed on the rear inner wall of the docking groove 2. The diameter of the circular groove 6 is larger than that of the docking groove 2, and the circular groove 6 is communicated with both the docking groove 2 and the positioning groove 4.

[0033] Furthermore, three grooves 7 are formed on the left and right inner walls of the positioning groove 4, and three protrusions 8 are fixedly connected to both sides of the outer surface of the docking rod 3. The protrusions 8 are adapted to the grooves 7.

[0034] When the staff needs to dock two composite foam board bodies 1, first insert the two docking rods 3 rotatably connected to one composite foam board body 1 into the two docking slots 2 opened in the other composite foam board body 1 respectively. At this time, the positioning blocks 5 will be slidably connected inside the positioning grooves 4, thereby ensuring the flatness of the splicing of the composite foam board body 1. Subsequently, after the end of the docking rod 3 away from the composite foam board body 1 contacts the inner wall of the circular groove 6, at this time, the two positioning blocks 5 will disengage from the two positioning grooves 4, and then rotate the two docking rods 3 respectively. At this time, the docking rods 3 will drive the two positioning blocks 5 to rotate inside the circular groove 6. At this time, the rotation of the docking rods 3 will also drive the movement of the convex blocks 8. Subsequently, the convex blocks 8 will be stuck into the grooves 7, and finally the splicing between the two composite foam board bodies 1 is realized. Through the above structure, the flatness of the surface during the splicing of the composite foam board body 1 is ensured, and the situation of dislocation is avoided. Moreover, through the cooperation of the grooves 7 and the convex blocks 8, and the positioning blocks 5 and the circular groove 6, the firmness of the splicing between the composite foam board bodies 1 is further improved, and the efficiency and stability of the splicing between the two composite foam board bodies 1 are improved. It has high practicability and is simple to operate.

[0035] Working principle:

[0036] When this composite foam board is in use, insert the two docking rods 3 rotatably connected to one composite foam board body 1 into the two docking slots 2 opened in the other composite foam board body 1 respectively. At this time, the positioning blocks 5 will be slidably connected inside the positioning grooves 4, thereby ensuring the flatness of the splicing of the composite foam board body 1. Subsequently, after the end of the docking rod 3 away from the composite foam board body 1 contacts the inner wall of the circular groove 6, at this time, the two positioning blocks 5 will disengage from the two positioning grooves 4, and then rotate the two docking rods 3 respectively. At this time, the docking rods 3 will drive the two positioning blocks 5 to rotate inside the circular groove 6. At this time, the rotation of the docking rods 3 will also drive the movement of the convex blocks 8. Subsequently, the convex blocks 8 will be stuck into the grooves 7, and finally the splicing between the two composite foam board bodies 1 is realized.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite foam board, comprising a composite foam board body (1), characterized in that: The composite foam board body (1) is composed of a foam board body (110) and a protective coating (120) coated on both sides of the foam board body (110); the protective coating (120) comprises a flame retardant layer (121), a thermal insulation layer (122), a noise reduction layer (123) and a protective layer (124); the flame retardant layer (121) is coated on the outer side of the foam board body (110); the thermal insulation layer (122) is coated on the outer side of the flame retardant layer (121); the noise reduction layer (123) is coated on the outer side of the thermal insulation layer (122); and the protective layer (124) is coated on the outer side of the noise reduction layer (123).

2. A composite foam board according to claim 1, characterized in that: A docking groove (2) is provided on the left surface of the composite foam board body (1), and a docking rod (3) is rotatably connected to the right surface of the composite foam board body (1), and the docking rod (3) and the docking groove (2) are matched.

3. A composite foam board according to claim 2, characterized in that: The upper and lower inner walls of the docking groove (2) are both provided with positioning grooves (4), and the outer surface of the docking rod (3) is fixedly connected to two positioning blocks (5).

4. A composite foam board according to claim 3, characterized in that: The positioning block (5) and the positioning groove (4) are matched.

5. The composite foam board according to claim 3, characterized in that: A circular groove (6) is provided on the rear inner wall of the docking groove (2).

6. A composite foam board according to claim 5, characterized in that: The circular groove (6) is connected to both the docking groove (2) and the positioning groove (4).

7. A composite foam board according to claim 6, characterized in that: The inner walls on the left and right sides of the positioning groove (4) are each provided with three grooves (7), and the outer surfaces of the docking rod (3) are each fixedly connected with three protrusions (8) on both sides.

8. A composite foam board according to claim 7, characterized in that: The convex block (8) and the concave groove (7) are matched with each other.

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