Fireproof plate and vertical ventilation fireproof barrier structure

Abstract

The utility model relates to the field of fireproof barriers, in particular to a fireproof plate and a vertical ventilation fireproof barrier structure, the fireproof plate comprises a bendable fireproof plate body, the fireproof plate body comprises an expansion layer and two fireproof layers, the expansion layer is arranged between the two fireproof layers, the expansion layer is fixedly connected with the fireproof layers, and the fireproof layers are arranged between the expansion layer and the fireproof layers. A plurality of ventilation holes penetrating through the expansion layer and the fireproof layer in the thickness direction are formed in the fireproof plate body, and when the expansion layer expands with heat, the expansion layer expands along the ventilation holes, so that the ventilation holes are blocked. Compared with a traditional fireproof barrier of a fixed specification, the flexible fireproof plate body can better adapt to wall spaces of different widths and changes of contraction joints between buildings, the application range of the flexible fireproof plate body is widened, and the requirements of various building structures for the fireproof barrier can be flexibly met.

Description

Technical Field

[0001] This utility model relates to the field of fire barriers, and in particular to a fireproof board and a vertically ventilated fire barrier structure. Background Technology

[0002] Fire barriers are commonly used facilities to prevent the spread of fire and protect people and property. Traditional fire barriers typically employ a relatively fixed structure, utilizing fire-resistant materials to create panels or other structures that block the transmission of flames and heat.

[0003] Traditional fire barriers are mostly designed with fixed specifications, and their width is often fixed. This makes it difficult to adapt to different wall widths and the changes in expansion joints between buildings. This can lead to problems during installation, such as the size being too large to install or too small to effectively cover the area that needs protection. This limits their application range and makes it impossible to flexibly meet the needs of various building structures. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide at least one beneficial option or create conditions to solve one or more technical problems existing in the prior art.

[0005] The solution to the technical problem of this utility model is: a fireproof board, which includes a bendable fireproof board body, the fireproof board body includes an expansion layer and two fireproof layers, the expansion layer is disposed between the two fireproof layers, the expansion layer and the fireproof layers are fixedly connected, the fireproof board body is provided with a plurality of ventilation holes penetrating the expansion layer and the fireproof layers along the thickness direction, when the expansion layer expands when heated, the expansion layer expands along the ventilation holes, thereby blocking the ventilation holes.

[0006] The beneficial effects of this utility model are as follows: The fireproof board body adapts to different installation spaces through its own flexibility, better fitting different widths of wall spaces and changes in expansion joints between buildings; the expansion layer maintains a stable state under normal conditions, but expands rapidly when heated, sealing the ventilation holes and preventing the spread of fire through them, thus enhancing the overall fire resistance; the fireproof layer directly blocks the transfer of flames and heat, reducing heat transfer to the other side, ensuring the safety of its protected area, and providing support and protection for the expansion layer; the ventilation holes ensure air circulation in normal environments, allowing the area where the fireproof board is located to maintain normal air exchange, and in the event of a fire, they are sealed by the expansion layer, changing from a normal ventilation state to a fire barrier state, blocking the transfer of flames and heat. Compared to traditional fixed-size fire barriers, the flexible fireproof board body better adapts to different widths of wall spaces and changes in expansion joints between buildings, broadening its application range and flexibly meeting the fire barrier needs of various building structures.

[0007] During installation, the flexible fireproof board is bent according to the location where fire barriers need to be set in the actual building structure, so that it can fit tightly into the wall space, expansion joints between buildings, etc. Then, the fireproof board is firmly installed in the corresponding position using a suitable fixing method to ensure that it can effectively play its fire protection role.

[0008] As a further improvement to the above technical solution, the expansion layer and the fireproof layer are bonded together or fixed by metal edging.

[0009] As a further improvement to the above technical solution, the ventilation hole is circular, elliptical, or elongated, and the edge of the ventilation hole is provided with an arc transition area.

[0010] As a further improvement to the above technical solution, all the ventilation holes are arranged in a matrix on the fireproof board body to ensure the uniformity of ventilation.

[0011] As a further improvement to the above technical solution, the expansion layer has a porous and loose structure, and is flexible and compressible at room temperature. The expansion layer is one or more of vermiculite particles, expansion materials, porous perlite, expansion fibers, and aerogel composite materials.

[0012] As a further improvement to the above technical solution, the elastic modulus of the fireproof layer is 10-30 GPa, allowing the fireproof board to bend within a radius of curvature of 100-500 mm without breaking. The fireproof layer is one or more of glass fiber reinforced calcium silicate board, ceramic fiber sheet, and metal foil with a fireproof coating on the surface.

[0013] As a further improvement to the above technical solution, the fireproof board also includes a frame that wraps around the edges of both ends of the fireproof board body, and the frame is fixed to the expansion layer and the fireproof layer by bolts.

[0014] A vertically ventilated fire barrier structure includes a first wall, a second wall, and a fireproof board as described in any one of the above. An expansion joint is formed between the first wall and the second wall, and the fireproof board is used to cover the expansion joint. The vertically ventilated fire barrier structure also includes a connector. One end of the fireproof board is fixedly connected to the first wall through the connector, and the other end of the fireproof board abuts against the second wall. The width of the fireproof board is greater than the width of the expansion joint, so that the fireproof board is in a curved shape to adapt to the changes in the expansion joint.

[0015] As a further improvement to the above technical solution, the connector includes a connecting plate and expansion bolts. The connecting plate is connected to one end of the fireproof board by bolts or adhesive, and the connecting plate is fixedly connected to the first wall by expansion bolts.

[0016] As a further improvement to the above technical solution, the vertical ventilation fire barrier structure also includes a limiting groove, which is set on the second wall, and the end of the fireproof board near the second wall is locked in the limiting groove. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0018] Figure 2 This is a top view of one embodiment of the present invention.

[0019] In the attached diagram: 100 - First wall, 200 - Second wall, 300 - Expansion layer, 400 - Fireproof layer, 500 - Ventilation hole, 600 - Frame, 700 - Connector, 710 - Connecting plate, 720 - Expansion bolt, 800 - Limiting groove. Detailed Implementation

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments have been briefly explained above. Obviously, the described drawings are only a part of the embodiments of this utility model, not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0021] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0022] Fire barriers are commonly used facilities to prevent the spread of fire and protect people and property. Traditional fire barriers typically employ a relatively fixed structure, utilizing fire-resistant materials to create panels or other structures that block the transmission of flames and heat.

[0023] Traditional fire barriers are mostly designed with fixed specifications, and their width is often fixed. This makes it difficult to adapt to different wall widths and the changes in expansion joints between buildings. This can lead to problems during installation, such as the size being too large to install or too small to effectively cover the area that needs protection. This limits their application range and makes it impossible to flexibly meet the needs of various building structures.

[0024] Therefore, this utility model proposes a fireproof board, referring to... Figures 1-2 It includes a flexible fireproof board body, the fireproof board body including an expansion layer 300 and two fireproof layers 400, the expansion layer 300 being disposed between the two fireproof layers 400, the expansion layer 300 and the fireproof layers 400 being fixedly connected, the fireproof board body having a plurality of ventilation holes 500 penetrating the expansion layer 300 and the fireproof layers 400 along the thickness direction, when the expansion layer 300 expands when heated, the expansion layer 300 expands along the ventilation holes 500, thereby blocking the ventilation holes 500.

[0025] The fire-resistant board itself, through its flexibility, adapts to different installation spaces, better fitting wall widths and varying expansion joints between buildings. The expansion layer 300 remains stable under normal conditions but expands rapidly upon heating, sealing the ventilation holes 500 and preventing the spread of fire through them, thus enhancing overall fire resistance. The fire-resistant layer 400 directly blocks flame and heat transfer, reducing heat transfer to the other side and ensuring the safety of its protected area, while also providing support and protection for the expansion layer 300. The ventilation holes 500 ensure air circulation in normal environments, maintaining normal air exchange in the area where the fire-resistant board is located. In the event of a fire, they are sealed by the expansion layer 300, transforming from a normal ventilation state to a fire-resistant barrier state, blocking flame and heat transfer. Compared to traditional fixed-size fire barriers, the flexible fire-resistant board itself better adapts to wall widths and varying expansion joints between buildings, broadening its application range and flexibly meeting the fire barrier needs of various building structures.

[0026] During installation, the flexible fireproof board is bent according to the location where fire barriers need to be set in the actual building structure, so that it can fit tightly into the wall space, expansion joints between buildings, etc. Then, the fireproof board is firmly installed in the corresponding position using a suitable fixing method to ensure that it can effectively play its fire protection role.

[0027] In one embodiment, the expansion layer 300 and the fireproof layer 400 are glued together or fixed with metal edging. This effective connection eliminates gaps or weak points between the expansion layer 300 and the fireproof layer 400, making it difficult for flames and heat to penetrate. In the event of a fire, this more effectively prevents the spread of fire. Combined with the function of the expansion layer 300 in sealing the ventilation holes 500 at a predetermined temperature, this comprehensively enhances the fire resistance of the fireproof board, ensuring the safety of personnel and property.

[0028] When the fireproof board is bent according to the width of the contraction joint, cracks or damage may occur at the edges of the ventilation holes 500. Therefore, in one embodiment, the ventilation holes 500 are circular, elliptical, or elongated, and the edges of the ventilation holes 500 are provided with arc-shaped transition areas. Designing the ventilation holes 500 as circular, elliptical, or elongated, and providing arc-shaped transition areas at their edges, allows stress to transition and disperse more smoothly at the edges, avoiding excessive stress concentration, reducing the risk of structural damage to the fireproof board caused by stress concentration, ensuring the structural integrity and stability of the fireproof board, and enabling it to reliably perform its fireproof and ventilation functions for a long time.

[0029] When air enters and exits through ventilation holes 500, localized over- or under-ventilation may occur. Therefore, in one embodiment, all the ventilation holes 500 are arranged in a matrix on the fireproof board body to ensure uniform ventilation. By arranging the ventilation holes 500 in a matrix, air can flow more evenly in all directions and at different positions when passing through the fireproof board, creating a stable and consistent ventilation environment on both sides of the fire barrier, meeting the equal ventilation needs of different areas, and improving the overall comfort and functionality. The matrix arrangement is regular and systematic, making it easier to position, process, and control the quality of the ventilation holes 500 during the fireproof board manufacturing process, improving production efficiency, and reducing processing errors caused by irregular layout of the ventilation holes 500.

[0030] In one embodiment, the expansion layer 300 has a porous and loose structure, exhibiting flexibility and compression resilience at room temperature. The expansion layer 300 is one or more of vermiculite particles, expanded materials, porous perlite, expanded fibers, and aerogel composite materials. The porous and loose structure of the expansion layer 300, along with its flexibility and compression resilience at room temperature, further enhances the bendability of the fireproof board. When facing complex building structures such as wall spaces of varying widths and expansion joints between buildings of different shapes, it can be easily bent and compressed to fit the installation location, greatly enhancing the fireproof board's adaptability to various building scenarios and effectively solving the problem of installation limitations caused by the fixed specifications of traditional fire barriers.

[0031] In one embodiment, the fireproof layer 400 has an elastic modulus of 10-30 GPa, allowing the fireproof board to bend within a radius of curvature of 100-500 mm without cracking. The fireproof layer 400 is one or more of glass fiber reinforced calcium silicate board, ceramic fiber sheet, and metal foil with a fire-retardant coating. The fireproof layer 400 possesses excellent flexibility, facilitating installation in various wall spaces of different widths and irregularly shaped expansion joints between buildings. Compared to traditional rigid and difficult-to-bend fire barriers, it better conforms to the actual installation environment, reducing installation difficulties and protective gaps caused by space adaptation issues, and improving its versatility and applicability in different building structures.

[0032] The edges of the fireproof board are relatively fragile and easily subjected to external forces such as collisions and friction during installation and use, resulting in wear, deformation, or even damage. Therefore, in one embodiment, the fireproof board further includes a frame 600, which wraps around the edges of both ends of the fireproof board body. The frame 600 is fixed to the expansion layer 300 and the fireproof layer 400 by bolts. The frame 600, wrapped around the edges of both ends of the fireproof board body, can effectively resist physical damage such as collisions and friction, preventing damage such as chipping and cracking at the edges of the fireproof board body, and ensuring its long-term stable performance. The frame 600 tightly wraps around the edges of both ends of the fireproof board body and maintains a sealed state, effectively preventing flames and smoke from seeping and spreading through the gaps at the edges during a fire, thus maximizing the integrity of the fireproof and smoke-proof functions of the fire barrier.

[0033] A vertically ventilated fire barrier structure, referring to Figures 1-2 It includes a first wall 100, a second wall 200, and a fireproof board as described in any one of the above. An expansion joint is formed between the first wall 100 and the second wall 200. The fireproof board is used to cover the expansion joint. The vertical ventilation fire barrier structure also includes a connector 700. One end of the fireproof board is fixedly connected to the first wall 100 through the connector 700, and the other end of the fireproof board abuts against the second wall 200. The width of the fireproof board is greater than the width of the expansion joint so that the fireproof board is in a curved shape to adapt to the changes in the expansion joint.

[0034] The fireproof board is wider than the expansion joint, allowing it to cover the expansion joint in a curved shape. Its excellent flexibility allows it to adapt to changes in the width of the expansion joint due to various factors. Regardless of whether the expansion joint widens or narrows, the fireproof board maintains a tight fit, effectively covering the joint and improving protection for vulnerable fire-prone areas between buildings. Connector 700 secures one end of the fireproof board to the first wall 100, while the other end abuts against the second wall 200, ensuring the board's stability and simplifying the installation process, thus reducing installation and maintenance costs. The expansion layer 300 of the fireproof board expands when heated, sealing the ventilation holes 500, while the fireproof layer 400 effectively blocks flame and heat transfer. When used in a vertically ventilated fire barrier structure, it creates a fire barrier line for the expansion joint in the vertical direction.

[0035] The connection between the fireproof board and the wall may be unstable or inconvenient to install. Therefore, in one embodiment, the connector 700 includes a connecting plate 710 and expansion bolts 720. The connecting plate 710 is connected to one end of the fireproof board by bolts or adhesive, and the connecting plate 710 is fixedly connected to the first wall 100 by the expansion bolts 720. By using the connecting plate 710 as an intermediate transition component, the contact area between the fireproof board and the first wall 100 is increased. Combined with the fixing with the connecting bolts, the connection between the fireproof board and the first wall 100 is made more secure, reducing the likelihood of loosening or falling off, and ensuring the stability of the overall fire barrier structure.

[0036] Fireproof boards are prone to movement under external forces, leading to structural instability. With prolonged use, they may loosen or even detach, affecting their fire-resistant function. Therefore, in one embodiment, the vertical ventilation fire barrier structure further includes a limiting groove 800, which is disposed on the second wall 200. The end of the fireproof board closest to the second wall 200 is secured within the limiting groove 800. The limiting groove 800 provides a clear placement position for the fireproof board, allowing it to quickly and accurately engage with the second wall 200 during installation. This ensures the board is correctly positioned within the contraction joint, guaranteeing that the overall layout meets design requirements and promoting uniform ventilation and comprehensive fire protection. The limiting groove 800 also restricts the movement of the fireproof board from the side, making it difficult for it to shift laterally or longitudinally under external forces, effectively reducing the possibility of swaying or displacement and enhancing the overall structural stability.

[0037] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A fireproof board, comprising a bendable fireproof board body, characterized in that, The fireproof board body includes an expansion layer (300) and two fireproof layers (400). The expansion layer (300) is disposed between the two fireproof layers (400). The expansion layer (300) and the fireproof layers (400) are fixedly connected. The fireproof board body is provided with a plurality of ventilation holes (500) that penetrate the expansion layer (300) and the fireproof layers (400) along the thickness direction. When the expansion layer (300) expands when heated, the expansion layer (300) expands along the ventilation holes (500), thereby blocking the ventilation holes (500).

2. The fireproof board according to claim 1, characterized in that, The expansion layer (300) and the fireproof layer (400) are bonded together or fixed by metal edging.

3. A fireproof board according to claim 1, characterized in that, The ventilation hole (500) is circular, elliptical or elongated, and the edge of the ventilation hole (500) is provided with an arc transition area.

4. A fireproof board according to claim 1, characterized in that, All the ventilation holes (500) are arranged in a matrix on the fireproof board body to ensure uniform ventilation.

5. A fireproof board according to claim 1, characterized in that, The expansion layer (300) has a porous and loose structure and is flexible and compressible at room temperature. The expansion layer (300) is one or more of vermiculite particles, expansion materials, porous perlite, expansion fibers and aerogel composite materials.

6. A fireproof board according to claim 1, characterized in that, The fireproof layer (400) has an elastic modulus of 10-30 GPa, allowing the fireproof board to bend within a radius of curvature of 100-500 mm without breaking. The fireproof layer (400) is one or more of glass fiber reinforced calcium silicate board, ceramic fiber sheet, and metal foil with a fireproof coating on the surface.

7. A fireproof board according to claim 1, characterized in that, The fireproof board also includes a frame (600), which wraps around the edges of both ends of the fireproof board body. The frame (600) is fixed to the expansion layer (300) and the fireproof layer (400) by bolts.

8. A vertically ventilated fire barrier structure, comprising a first wall (100), a second wall (200), and a fireproof board as described in any one of claims 1-7, wherein an expansion joint between the first wall (100) and the second wall (200) is formed between buildings, and the fireproof board is used to cover the expansion joint, characterized in that, The vertical ventilation fire barrier structure also includes a connector (700). One end of the fireproof board is fixedly connected to the first wall (100) through the connector (700), and the other end of the fireproof board abuts against the second wall (200). The width of the fireproof board is greater than the width of the contraction joint so that the fireproof board is in a curved shape to adapt to the changes in the contraction joint.

9. A vertically ventilated fire barrier according to claim 8, characterized in that, The connector (700) includes a connecting plate (710) and an expansion bolt (720). The connecting plate (710) is connected to one end of the fireproof board by bolts or adhesive, and the connecting plate (710) is fixedly connected to the first wall (100) by the expansion bolt (720).

10. A vertically ventilated fire barrier structure according to claim 8, characterized in that, The vertical ventilation fire barrier structure also includes a limiting groove (800), which is set on the second wall (200), and one end of the fireproof board near the second wall (200) is locked in the limiting groove (800).

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