A fireproof sealing plate with a deformation-resistant reinforced structure

Abstract

This application relates to the field of fireproof board technology, specifically disclosing a fireproof sealing board with an anti-deformation reinforcement structure. The fireproof sealing board body adopts a symmetrical layered structure composed of a heat insulation board, double-sided fireproof boards, and an outer decorative panel. Combined with the interlayer reinforcement structure and the fixing structure of the outer decorative panel, a multi-level mechanical support system is formed. The heat insulation board, as the core heat insulation layer, can block high temperature conduction. The fireproof boards on both sides balance thermal stress through symmetrical distribution, avoiding bending deformation caused by unilateral heating. The reinforcement structure forms a rigid support network between the fireproof board and the heat insulation board, significantly improving the overall bending strength. The fixing structure of the outer decorative panel maintains a tight fit between the layers through mechanical constraints, preventing material interface delamination at high temperatures. This design achieves synergistic control of thermo-mechanical coupling at the structural level, maintaining the geometric stability of the board during a fire, while providing a foundation for subsequent modular maintenance.

Description

Technical Field

[0001] This application relates to the field of fireproof board technology, and in particular to a fireproof sealing board with a deformation-resistant reinforced structure. Background Technology

[0002] Fire-resistant sealing panels are critical fire-resistant components used in buildings and industrial facilities to seal holes, penetrations, and other structural elements. They prevent the spread of flames and high-temperature smoke during a fire, ensuring the integrity of the building structure and the safety of evacuation routes. These panels must possess a certain fire resistance rating and are widely used in scenarios such as cable penetrations through walls, pipe shafts, and air duct penetrations, making them an indispensable part of building fire protection systems.

[0003] Currently, common fire-resistant sealing panels are mainly made of inorganic non-metallic materials or single composite materials. For example, some products use calcium silicate board, gypsum board, or magnesium oxide board as the main body, relying on the material's inherent non-combustibility and low thermal conductivity to achieve basic fire resistance; others combine fiber-reinforced materials with fire-resistant substrates through lamination processes to form simple composite structures to improve mechanical properties. These designs typically use monolithic panels, cut to fit site dimensions, and fixed to the building substrate using adhesives or mechanical fasteners.

[0004] However, under high-temperature conditions, existing fire-resistant sealing panels are prone to warping, deformation, and even cracking due to the significant differences in the thermal expansion coefficients of different materials, leading to uneven thermal stress within the panels during a fire. This, in turn, compromises the seal's continuity. Therefore, structural innovations are needed for these fire-resistant sealing panels to meet the demands of extreme environments. Utility Model Content

[0005] To improve the problems of warping and delamination caused by uneven thermal stress distribution in traditional fireproof sealing panels at high temperatures, this application provides a fireproof sealing panel with an anti-deformation reinforcement structure.

[0006] This application provides a fireproof sealing plate with a deformation-resistant reinforced structure, which adopts the following technical solution:

[0007] A fireproof sealing panel with a deformation-resistant reinforcement structure is provided inside the fireproof sealing panel body. The fireproof sealing panel body includes, from the inside to the outside, a heat insulation board, a fireproof board, and an outer decorative panel. Two fireproof boards are provided and are located on both sides of the heat insulation board. Two outer decorative panels are provided and are located on both sides of the fireproof board away from the heat insulation board.

[0008] A reinforcing structure is provided between the heat insulation board and each of the fireproof boards to enhance the bending resistance of the fireproof sealing board body. A fixing structure is provided between the two outer trim panels to fix the heat insulation board, the fireproof board and the outer trim panel.

[0009] By adopting the above technical solution, the fireproof sealing panel body adopts a symmetrical layered structure composed of a heat insulation board, double-sided fireproof boards, and an outer decorative panel. Combined with the interlayer reinforcement structure and the fixing structure of the outer decorative panel, a multi-level mechanical support system is formed. The heat insulation board, as the core heat insulation layer, can block the conduction of high temperature, and the fireproof boards on both sides balance the thermal stress through symmetrical distribution, avoiding bending deformation caused by unilateral heating.

[0010] The reinforced structure forms a rigid support network between the fireproof board and the heat insulation board, significantly improving the overall bending strength; while the fixing structure of the exterior panel maintains a tight fit between the layers through mechanical constraints, preventing material interface delamination at high temperatures. This design achieves coordinated control of thermo-mechanical coupling at the structural level, maintaining the geometric stability of the panels during a fire, while also providing a foundation for subsequent modular maintenance.

[0011] Optionally, the reinforcement structure includes reinforcing ribs and receiving grooves formed on the surfaces of the heat insulation board and the fireproof board for the reinforcing ribs to be engaged, wherein the reinforcing ribs are respectively engaged in symmetrical receiving grooves.

[0012] By adopting the above technical solution, the interlocking design between the reinforcing rib and the receiving groove eliminates traditional welding or bonding processes, achieving interlayer mechanical transfer through geometric interlocking. The reinforcing rib is embedded in the prefabricated groove of the insulation board and fireproof board, forming a continuous rigid skeleton that can evenly distribute external loads and thermal stresses. The interlocking structure allows the material to slide slightly along the groove direction at high temperatures, alleviating internal stress concentration caused by differences in thermal expansion coefficients. This design avoids the risk of localized embrittlement caused by welding, simplifies the production process, and ensures the long-term anchoring stability of the reinforcing rib under complex thermal environments.

[0013] Optionally, the reinforcing rib includes several branches, some of which can be combined to form multiple triangular structures.

[0014] By adopting the above technical solution, the branches of the reinforcing ribs are combined into multiple triangular structures, optimizing the mechanical transmission path using the principle of triangle stability. The triangular units create a truss effect in the plane, transforming localized concentrated loads into multi-directional dispersed forces, significantly improving compressive and shear resistance. The gaps between the branches can accommodate the thermal expansion deformation of the material, avoiding the stress lock-up phenomenon caused by thermal elongation in traditional straight reinforcing ribs. This topology is particularly suitable for dynamic loading conditions under non-uniform temperature fields, greatly reducing the risk of cracking caused by stress concentration.

[0015] Optionally, a connection structure for reinforcing the connection between the heat insulation board and each of the fireproof boards is also provided.

[0016] By adopting the above technical solution, the connecting structure is embedded between the heat insulation board and the fireproof board to form a multi-point distributed anchoring system.

[0017] Optionally, the connection structure includes connecting rods that penetrate and are embedded in the heat insulation board and each of the fireproof boards. Multiple connecting rods are provided, and the connecting rods are evenly distributed.

[0018] By adopting the above technical solution, multiple evenly distributed connecting rods form a dense network of mechanical nodes. The periodic array arrangement of the connecting rods ensures that the interlayer bonding strength exhibits isotropic characteristics in space, avoiding stress abrupt changes caused by missing local connection points. The periodic and uniform arrangement of the connecting rods also reduces the load-bearing capacity of individual connecting rods, preventing overload fracture at high temperatures. This design ensures connection reliability while minimizing the negative impact on the thermal insulation performance of the board, achieving synergistic optimization of mechanical properties and fire resistance.

[0019] Optionally, the gaps between the heat insulation board, the fireproof board, and the exterior trim panel are all filled with a graphite-based adhesive layer.

[0020] By employing the above technical solution, a graphite-based adhesive layer fills the gaps between layers, utilizing the high-temperature expansion properties of graphite and the fluidity of the adhesive to achieve dynamic sealing. At room temperature, the adhesive layer acts as an elastic buffer medium, absorbing interlayer assembly tolerances. In a fire, the graphite expands due to heat, filling the micro-gaps created by material deformation, while the adhesive carbonizes to form a dense barrier layer, blocking the flame penetration path. This design transforms passive sealing into active adaptation, solving the sealing failure problem caused by high-temperature deformation in traditional rigid sealing structures.

[0021] Optionally, the fixing structure includes tenons and mortises disposed on the sides of the two exterior panels, and pins for connecting the tenons and mortises, wherein the tenons and mortises are mutually inserted and adapted.

[0022] By adopting the above technical solution, the mortise and tenon pin fixing structure enables rapid assembly and disassembly of the exterior panel and adaptive deformation. The mating of the tenon and mortise allows for precise positioning of the panel during installation, while the elastic constraint of the pin provides axial fixing force and retains lateral thermal expansion allowance.

[0023] The modular connection method allows individual exterior panels to be replaced independently without damaging the overall structure. This design breaks through the rigidity limitations of traditional bolt fastening, significantly reduces maintenance costs, and adapts to millimeter-level displacements in the building's base layer caused by temperature fluctuations.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] By constructing a symmetrical layered structure consisting of a heat insulation board, double-sided fireproof boards, and an exterior panel, combined with an interlayer reinforcement structure and an exterior panel fixing structure, a multi-level synergistic anti-deformation system is formed. The heat insulation board acts as a core thermal barrier layer to block high-temperature conduction, while the double-sided fireproof boards are symmetrically distributed to balance thermal stress and avoid uneven warping caused by unilateral heating. The reinforcement structure forms a rigid support network between the fireproof board and the heat insulation board, significantly improving the overall bending strength and shear resistance. The fixing structure of the exterior panel achieves mechanical constraint and deformation self-adaptation through tenon and mortise joints, maintaining a tight fit between the layers while allowing for slight displacement due to thermal expansion. This design achieves a deep synergy between geometric stability and dynamic thermal stress dispersion at high temperatures through dual optimization of material layout and mechanical transmission path, breaking through the problem of uncontrolled deformation caused by differences in the coefficient of thermal expansion of traditional panels.

[0026] Based on the principle of triangular stability, a multi-layered dynamic stress control system is constructed using a branched design of reinforcing ribs, uniformly distributed connecting rods, and graphite-based adhesive filling technology. The triangular reinforcing unit transforms concentrated loads into multi-directional dispersed forces through the truss effect, reducing the risk of stress concentration. The uniformly interspersed connecting rods form a three-dimensional anchoring network, suppressing interlayer slippage and interface delamination. The graphite-based adhesive expands and fills micro-gaps at high temperatures, simultaneously achieving passive sealing and active deformation compensation. This mechanism effectively solves the failure problem of traditional reinforced structures caused by rigid overload or thermal expansion lock-up through topology optimization and material response characteristic matching, and is especially suitable for long-term stability requirements under non-uniform temperature fields.

[0027] The technology employs a tenon-and-mortise type fixing structure for the exterior panels and a dynamic sealing solution using graphite-based adhesive layers. This enables rapid disassembly and maintenance of the panels, as well as high-temperature adaptive sealing. The tenon-and-mortise design retains thermal expansion margin through elastic constraints, allowing for independent replacement of individual exterior panels and significantly reducing maintenance costs. The graphite-based adhesive layer acts as a buffer medium at room temperature to absorb assembly tolerances, and after high-temperature expansion, it carbonizes into a dense barrier layer, simultaneously solving the problems of deformation compensation and flame penetration. This technology overcomes the rigidity limitations of traditional integral sealing panels, taking into account installation efficiency, maintenance flexibility, and sealing reliability in extreme environments, providing a sustainable fireproof sealing solution for building fire protection systems. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a fireproof sealing plate with an anti-deformation reinforcement structure in an embodiment of this application;

[0029] Figure 2 yes Figure 1 Explosion-proof structural diagram of the deformation-resistant reinforcement structure of the fireproof sealing plate;

[0030] Figure 3 yes Figure 2 A partial exploded structural diagram of the fireproof sealing plate body.

[0031] Reference numerals: 1. Fireproof sealing panel body; 11. Heat insulation board; 12. Fireproof board; 13. Exterior panel; 2. Reinforcing structure; 21. Reinforcing rib; 22. Receiving groove; 3. Fixing structure; 31. Tenon; 32. Mortise; 33. Pin; 4. Connecting rod. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail below.

[0033] This application discloses a fireproof sealing plate with a deformation-resistant reinforced structure.

[0034] Reference Figure 1 and Figure 2 A fireproof sealing panel with a deformation-resistant reinforcement structure is provided inside the fireproof sealing panel body 1. The fireproof sealing panel body 1 includes, from the inside to the outside, a heat insulation board 11, a fireproof board 12 and an outer decorative panel 13. Two fireproof boards 12 are provided and are located on both sides of the heat insulation board 11. Two outer decorative panels 13 are provided and are located on both sides of the fireproof board 12 away from the heat insulation board 11.

[0035] Reference Figure 1 and Figure 2 A reinforcing structure 2 is provided between the heat insulation board 11 and each fireproof board 12 to enhance the bending resistance of the fireproof sealing board body 1. A fixing structure 3 is provided between the two outer trim panels 13 to fix the heat insulation board 11, the fireproof board 12 and the outer trim panel 13.

[0036] The fireproof sealing panel body 1 adopts a symmetrical layered structure consisting of a heat insulation board 11, double-sided fireproof boards 12, and an outer decorative panel 13. Combined with the interlayer reinforcement structure 2 and the fixing structure 3 of the outer decorative panel 13, a multi-level mechanical support system is formed. The heat insulation board 11, as the core heat insulation layer, can block the conduction of high temperature, and the fireproof boards 12 on both sides balance the thermal stress through symmetrical distribution, avoiding bending deformation caused by unilateral heating.

[0037] The reinforcement structure 2 forms a rigid support network between the fireproof board 12 and the heat insulation board 11, significantly improving the overall bending strength. Meanwhile, the fixing structure 3 of the outer panel 13 maintains a tight fit between the layers through mechanical constraints, preventing material interface delamination at high temperatures. This design achieves coordinated control of thermo-mechanical coupling at the structural level, maintaining the geometric stability of the panels during a fire, while also providing a foundation for subsequent modular maintenance.

[0038] Reference Figure 2 and Figure 3The reinforcing structure 2 includes reinforcing ribs 21 and receiving grooves 22 formed on the surfaces of the heat insulation board 11 and the fireproof board 12 for the reinforcing ribs 21 to be snapped into. The reinforcing ribs 21 are snapped into the symmetrical receiving grooves 22 respectively. The snapping design of the reinforcing ribs 21 and the receiving grooves 22 abandons the traditional welding or bonding process and realizes the interlayer mechanical transfer through geometric interlocking.

[0039] The reinforcing rib 21 is embedded in the prefabricated groove of the heat insulation board 11 and the fireproof board 12, forming a continuous rigid skeleton that can evenly distribute external loads and thermal stresses. The snap-fit ​​structure allows the material to slide slightly along the groove direction at high temperatures, alleviating internal stress concentration caused by differences in thermal expansion coefficients. This design avoids the risk of local embrittlement caused by welding, simplifies the production process, and ensures the long-term anchoring stability of the reinforcing rib 21 under complex thermal environments.

[0040] The reinforcing rib 21 comprises several branches, some of which can be combined to form multiple triangular structures. These branches optimize the force transmission path by utilizing the principle of triangle stability. The triangular elements create a truss effect in the plane, transforming localized concentrated loads into multi-directional dispersed forces, significantly improving compressive and shear resistance. The gaps between the branches can accommodate thermal expansion deformation of the material, avoiding stress locking caused by thermal elongation in traditional straight reinforcing ribs. This topology is particularly suitable for dynamic loading conditions under non-uniform temperature fields, greatly reducing the risk of cracking caused by stress concentration.

[0041] Reference Figure 2 and Figure 3 A connection structure for strengthening the connection between the heat insulation board 11 and each fireproof board 12 is also provided. The connection structure is embedded between the heat insulation board 11 and the fireproof board 12 to form a multi-point distributed anchoring system. The connection structure includes a connecting rod 4 embedded in the heat insulation board 11 and each fireproof board 12. There are multiple connecting rods 4, and each connecting rod 4 is evenly distributed.

[0042] Multiple evenly distributed connecting rods 4 form a dense network of mechanical nodes. The periodic array arrangement of the connecting rods 4 ensures that the interlayer bonding strength exhibits isotropic characteristics in space, avoiding stress abrupt changes caused by missing local connection points. The periodic and uniform arrangement of the connecting rods 4 also reduces the load-bearing capacity of a single connecting rod 4, preventing overload fracture at high temperatures. This design ensures connection reliability while minimizing the negative impact on the thermal insulation performance of the board, achieving synergistic optimization of mechanical properties and fire resistance.

[0043] The gaps between the heat insulation board 11, the fireproof board 12, and the outer trim panel 13 are all filled with a graphite-based adhesive layer. This graphite-based adhesive layer fills the gaps between each layer, utilizing the high-temperature expansion properties of graphite and the fluidity of the adhesive to achieve dynamic sealing. At room temperature, the adhesive layer acts as an elastic buffer medium, absorbing interlayer assembly tolerances. In a fire, the graphite expands due to heat, filling the micro-gaps created by material deformation. Simultaneously, the adhesive carbonizes to form a dense barrier layer, blocking the flame penetration path. This design transforms passive sealing into active adaptation, solving the sealing failure problem caused by high-temperature deformation in traditional rigid sealing structures.

[0044] Reference Figure 2 and Figure 3 The fixing structure 3 includes tenons 31 and mortises 32 disposed on the sides of the two exterior panels 13, and pins 33 for connecting the tenons 31 and mortises 32. The tenons 31 and mortises 32 are interlocked and adapted to each other. The tenon-and-mortise pin-type fixing structure 3 enables the exterior panels 13 to be quickly disassembled and reassembled and to adapt to deformation. The interlocking of the tenons 31 and mortises 32 allows for precise positioning of the panels during installation, and the elastic constraint of the pins 33 provides axial fixing force while retaining lateral thermal expansion allowance.

[0045] The modular connection method allows individual exterior panels 13 to be replaced independently without damaging the overall structure. This design breaks through the rigidity limitations of traditional bolt fastening, significantly reduces maintenance costs, and adapts to millimeter-level displacements in the building's base layer caused by temperature fluctuations.

[0046] The implementation principle of a fireproof sealing plate with an anti-deformation reinforcement structure in this application embodiment is as follows: by constructing a symmetrical layered structure composed of a heat insulation board 11, double-sided fireproof boards 12 and an outer decorative board 13, combined with the interlayer reinforcement structure 2 and the fixing structure 3 of the outer decorative board 13, a multi-level synergistic anti-deformation system is formed. The heat insulation board 11 serves as a heat barrier core layer to block high temperature conduction, and the double-sided fireproof boards 12 are symmetrically distributed to balance thermal stress and avoid uneven warping caused by unilateral heating.

[0047] The reinforcement structure 2 forms a rigid support network between the fireproof board 12 and the heat insulation board 11, which significantly improves the overall bending strength and shear resistance.

[0048] The fixing structure 3 of the exterior panel 13 achieves mechanical constraint and deformation self-adaptation through tenon and mortise pins 33, which not only maintains the tight fit of each layer, but also allows for slight displacement due to thermal expansion. This design achieves a deep synergy between geometric stability and dynamic thermal stress dispersion at high temperatures through dual optimization of material layout and mechanical transmission path, breaking through the problem of deformation runaway caused by the difference in thermal expansion coefficient of traditional panels.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A firestop closure panel with a deformation-resistant reinforcement structure, the deformation-resistant reinforcement structure being arranged inside the body (1) of the firestop closure panel, characterized in that: The fireproof sealing plate body (1) includes, from the inside to the outside, a heat insulation plate (11), a fireproof plate (12) and an outer decorative plate (13). There are two fireproof plates (12), which are located on both sides of the heat insulation plate (11). There are two outer decorative plates (13), which are located on both sides of the fireproof plate (12) away from the heat insulation plate (11). A reinforcing structure (2) is provided between the heat insulation board (11) and each of the fireproof boards (12) to enhance the bending resistance of the fireproof sealing board body (1), and a fixing structure (3) is provided between the two outer trim panels (13) to fix the heat insulation board (11), the fireproof board (12) and the outer trim panel (13).

2. The fireproof sealing plate with a deformation-resistant reinforced structure according to claim 1, characterized in that: The reinforcement structure (2) includes a reinforcing rib (21) and a receiving groove (22) formed on the surface of the heat insulation board (11) and the fireproof board (12) for the reinforcing rib (21) to be engaged. The reinforcing rib (21) is engaged in the symmetrical receiving groove (22) respectively.

3. A fireproof sealing plate with a deformation-resistant reinforced structure according to claim 2, characterized in that: The reinforcing bar (21) includes several branches, some of which can be combined to form multiple triangular structures.

4. A fireproof sealing plate with a deformation-resistant reinforced structure according to claim 1, characterized in that: A connection structure for strengthening the connection between the heat insulation board (11) and each of the fireproof boards (12) is also provided.

5. A fireproof sealing plate with a deformation-resistant reinforced structure according to claim 4, characterized in that: The connection structure includes a connecting rod (4) that penetrates and is embedded in the heat insulation plate (11) and each of the fireproof plates (12). There are multiple connecting rods (4), and each connecting rod (4) is evenly distributed.

6. A fireproof sealing plate with a deformation-resistant reinforced structure according to claim 1, characterized in that: The gaps between the heat insulation board (11), the fireproof board (12), and the exterior trim board (13) are all filled with a graphite-based adhesive layer.

7. A fireproof sealing plate with a deformation-resistant reinforced structure according to claim 1, characterized in that: The fixing structure (3) includes tenons (31) and mortises (32) disposed on the sides of the two outer panels (13), and pins (33) for connecting the tenons (31) and the mortises (32), wherein the tenons (31) and the mortises (32) are mutually inserted and adapted.

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