Composite fireproof plate

Abstract

The utility model discloses a composite fireproof plate, which is made of a fireproof heat-insulating plate, and the fireproof heat-insulating plate comprises a stainless steel outer layer positioned on the outer layer, a fireproof heat-insulating layer positioned on the middle layer and a fireproof plate layer positioned on the inner layer, the integrated structure of the stainless steel outer layer, the fire-resistant heat-insulating layer and the fireproof plate layer reduces internal gaps of the composite fireproof plate as much as possible, no additional fireproof plate needs to be additionally arranged during combined use, and good fireproof sealing performance can be achieved. The stainless steel outer layer is good in corrosion resistance and long in service life, most heat can be isolated through the design of the fire-resistant heat insulation layer and the fireproof plate layer, the non-fired side is in a normal temperature state as much as possible, and loss caused by fire disasters is prevented from being further expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof boards, in particular to a composite fireproof board. Background Art

[0002] Fireproof board is a fire-resistant building material for surface decoration, widely used in interior decoration, furniture, kitchen cabinets, laboratory countertops, exterior walls, etc. Fireproof cable trough box is a protective device for cables and wires. Its main purpose is to provide additional fire protection in the event of a fire. It can confine the fire to a certain area, prevent the fire from spreading to other areas, slow down the development of the fire, and buy precious time for personnel evacuation and fire extinguishing.

[0003] At present, the fireproof board used to make the main body of the fireproof cable trough box is generally made of color steel plate, which is easily corroded in a humid environment and has a short service life. In addition, the fireproof plate inside the fireproof cable trough box is separate from the color steel plate outside. It is inserted after the fireproof cable trough box is installed. This results in a large gap between the internal fireproof plates and a poor heat insulation and fireproofing effect. Summary of the invention

[0004] The utility model aims to solve the problems in the prior art and provides a composite fireproof board which integrates a stainless steel outer layer, a fire-resistant heat-insulating layer and a fireproof board layer and has strong corrosion resistance and fireproof heat-insulating capabilities.

[0005] In order to achieve the above object, the technical solution of the utility model is:

[0006] A composite fireproof board is made of a fireproof and heat-insulating board material, wherein the fireproof and heat-insulating board material comprises a stainless steel outer layer located on the outer layer, a fire-resistant and heat-insulating layer located on the middle layer, and a fireproof board layer located on the inner layer; the fireproof and heat-insulating board material is spliced ​​by at least two substrates, wherein the stainless steel outer layer at the connecting end of one substrate is provided with a plug-in board extending toward the other substrate, and when the two substrates are spliced, the plug-in board of one substrate is seamlessly inserted into the other substrate.

[0007] Preferably, positioning strips are provided on both sides of the lower side of the composite fireproof board along its length direction.

[0008] Preferably, the positioning strip is integrally formed by folding the outer layer of stainless steel.

[0009] Preferably, a plug-in board extending toward another substrate is also provided on the inner wall side of the positioning strip of the substrate.

[0010] Preferably, a first fixing hole is provided on the plug board, and a second fixing hole corresponding to the position of the first fixing hole is provided at the connecting end of the other substrate.

[0011] Preferably, the fire-resistant heat-insulating layer is made of aluminum silicate fiberboard, and the fireproof board layer is made of calcium silicate fiberboard or magnesium oxychloride fireproof board.

[0012] Preferably, the thickness ratio of the fire-resistant insulation layer to the fire-proof board layer is 1-2:1.

[0013] The beneficial effects of the utility model are as follows: a composite fireproof board of the utility model is made of a fireproof and heat-insulating board material, and the fireproof and heat-insulating board material includes a stainless steel outer layer located on the outer layer, a fire-resistant and heat-insulating layer located in the middle layer, and a fireproof board layer located in the inner layer. The integrated structure of the stainless steel outer layer, the fire-resistant and heat-insulating layer and the fireproof board layer minimizes the internal gap of the composite fireproof board, and no additional fireproof board is required when used in combination, and it can also have good fireproof sealing performance; the stainless steel outer layer has good corrosion resistance and a long service life, and the design of the fire-resistant and heat-insulating layer and the fireproof board layer can isolate most of the heat, so that the non-fired side is in a normal temperature state as much as possible, thereby avoiding further expansion of the loss caused by the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 2 This is a schematic structural diagram of another implementation mode of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of one of the substrates of the utility model;

[0017] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0018] Figure 5 It is a schematic structural diagram of another substrate of the utility model. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and implementation methods.

[0020] like Figure 1-Figure 5A composite fireproof board shown is made of a fireproof and heat-insulating board material, and the fireproof and heat-insulating board material includes a stainless steel outer layer 11 located on the outer layer, a fire-resistant and heat-insulating layer 12 located on the middle layer, and a fireproof board layer 13 located on the inner layer. The stainless steel outer layer 11 has good corrosion resistance and a long service life. Moreover, the melting point of stainless steel is 1200-1600°C, and the flame temperature is about 800°C. The stainless steel outer layer 11 will not melt during a fire, and a good physical protection effect can still be guaranteed. The fire-resistant and heat-insulating layer 12 of the middle layer can be made of aluminum silicate fiberboard, which has good toughness, stable performance, and good fire-resistant and heat-insulating effect. The inner fireproof board layer 13 can be made of calcium silicate fiberboard or magnesium oxychloride fireproof board, both of which have the characteristics of light weight, high strength, good heat insulation, durability, excellent processing performance and construction performance. The thickness ratio of the fireproof insulation layer 12 to the fireproof board layer 13 can be 1-2:1. If the insulation effect is required to be high, the thickness of the fireproof insulation layer 12 can be appropriately increased. After the composite fireproof board of the utility model is used to make a fireproof cable trough box, through the double fireproof insulation effect of the fireproof insulation layer 12 and the fireproof board layer 13, when a fire occurs outside, it can be ensured that the external flame will not spread to the inside of the fireproof cable trough box, and the internal temperature can be controlled at about 80°C, and the cable can still be powered on, reducing the impact of the fire on the electrical system and reducing the losses caused by power outages, equipment damage, etc.

[0021] As a preferred solution, the fireproof heat insulation board is formed by splicing at least two substrates 1, wherein the stainless steel outer layer 11 at the connection end of one substrate 1 is provided with a plug-in board 51 extending toward the other substrate 1. When the two substrates 1 are spliced, the plug-in board 51 of one substrate 1 is seamlessly inserted into the other substrate 1. Positioning strips 4 are provided on both sides of the lower side of the composite fireproof board along its length direction. The positioning strips 4 are formed by folding the stainless steel outer layer 11 and forming an integral body, which has better firmness and is easy to produce. The positioning strips 4 play a role in guiding the installation, and the side of the positioning strips 4 can be frosted or otherwise anti-slip treated. When the fireproof heat insulation board is installed in place, the friction between the positioning strips 4 and other installation structures can be used to prevent sliding. The inner wall side of the positioning strips 4 of the substrate 1 is also provided with a plug-in board 51 extending toward the other substrate 1. The plug board 51 is arranged on the inner side of the corresponding positioning strip 4 and the stainless steel outer layer 11, and its extending direction is the same as the extending direction of the corresponding positioning strip 4 and the stainless steel outer layer 11 but is parallel and staggered. This structure allows the two substrates 1 to be better docked.

[0022] The plug board 51 is provided with a first fixing hole 6, and the connecting end of the other base plate 1 is provided with a second fixing hole 61 corresponding to the position of the first fixing hole 6. When the two base plates 1 are joined, the two base plates 1 and the fireproof heat insulation layer 12 and the fireproof board layer 13 therein are fixed together by screws and the first fixing hole 6 and the second fixing hole 61, which is convenient for installation and has a stable structure. In addition, the design of the plug board 51 ensures that there will be no gap at the connection of the two sub-cover plates 5 to directly expose the fireproof heat insulation layer 12.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A composite fireproof board, characterized in that: The fireproof and heat-insulating plate comprises a stainless steel outer layer (11) located at the outer layer, a fire-resistant heat-insulating layer (12) located at the middle layer, and a fireproof board layer (13) located at the inner layer; the fireproof and heat-insulating plate is formed by splicing at least two substrates (1), wherein the stainless steel outer layer (11) at the connecting end of one substrate (1) is provided with a plug-in board (51) extending toward the other substrate (1); when the two substrates (1) are spliced, the plug-in board (51) of one substrate (1) is seamlessly inserted into the other substrate (1).

2. The composite fireproof board according to claim 1, characterized in that: Positioning strips (4) are arranged on both sides of the lower side of the composite fireproof board along its length direction.

3. The composite fireproof board according to claim 2, characterized in that: The positioning strip (4) is formed as one piece by folding the stainless steel outer layer (11).

4. The composite fireproof board according to claim 2, characterized in that: The inner wall side of the positioning strip (4) of the base plate (1) is also provided with a plug-in board (51) extending toward another base plate (1).

5. The composite fireproof board according to claim 4, characterized in that: The plug board (51) is provided with a first fixing hole (6), and a second fixing hole (61) corresponding to the position of the first fixing hole (6) is provided at the connection end of the other base board (1).

6. The composite fireproof board according to claim 1, characterized in that: The fire-resistant heat-insulating layer (12) is made of aluminum silicate fiberboard, and the fireproof board layer (13) is made of calcium silicate fiberboard or magnesium oxychloride fireproof board.

7. The composite fireproof board according to claim 1, characterized in that: The thickness ratio of the fire-resistant heat-insulating layer (12) to the fire-proof board layer (13) is 1-2:1.

Images