A fireproof partition with large width and insulation on three sides

Abstract

The present invention discloses a wide, three-sided insulated fireproof partition, comprising a partition assembly comprising a left partition assembly, a top connector assembly, a right partition assembly, an inspection door assembly, and an electrical cabinet partition assembly. The left and right partition assemblies are arranged in parallel. The electrical cabinet partition assembly and the inspection door assembly form a plane and are vertically connected between the left and right partition assemblies. The top connector assembly is connected to the top of the partition assembly along its contour, forming a three-sided fireproof and heat-insulating barrier. While ensuring the fireproof integrity and heat-insulating properties of the fireproof partition, the present invention can also accommodate larger equipment and personnel and achieve a three-dimensional fireproof and heat-insulating barrier.

Description

Technical Field

[0001] The invention relates to a rail transit train, and in particular to a fireproof partition with a large width and insulation and fireproofing on three sides. Background Art

[0002] Rail transit fire partitions are often used to separate the driver's cab from the passenger compartment. They protect the driver from the fire in the event of a fire inside a train compartment, allowing time for emergency train operations to prevent further casualties. EN45545-3, a commonly used fire protection standard for rail transit, evaluates the fire performance of fire partitions in two aspects: integrity and thermal insulation. Integrity refers to the duration that the fire partition blocks the fire source; thermal insulation refers to the time required to prevent the heat from propagating through the fire source, raising the average temperature by 140°C.

[0003] At present, conventional fire partitions have the following two main shortcomings: (1) In order to achieve the fire performance requirements of the integrity of the fire partition, the movable door leaf of the partition can pass through a very small space, which is not convenient for the installation of large-sized equipment on vehicles and the passage of personnel; (2) Conventional fire partitions can only form a "surface" fireproof and heat-insulating barrier, and the fireproof integrity and heat insulation properties need to be improved. Summary of the Invention

[0004] Purpose of the invention: The purpose of the present invention is to provide a fire partition with a large width and three-sided insulation fire protection, which can pass larger equipment and personnel and realize a fire and heat insulation barrier in three directions while ensuring the fire integrity and thermal insulation of the fire partition.

[0005] Technical solution: The present invention includes a partition assembly, which includes a left partition assembly, a top connecting piece assembly, a right partition assembly, an inspection door assembly, and an electrical cabinet partition assembly. The left partition assembly and the right partition assembly are arranged in parallel; the electrical cabinet partition assembly and the inspection door assembly form a plane and are vertically connected between the left partition assembly and the right partition assembly to form a three-sided fireproof and heat-insulating barrier.

[0006] The electrical cabinet partition wall assembly adopts a double-layer folding hinge structure, and the movable direction of the electrical cabinet partition wall assembly is opposite to the fire force direction; the double-layer folding hinge structure can achieve a large opening, which is convenient for equipment and personnel to pass through.

[0007] The left partition wall assembly, the right partition wall assembly, the inspection door assembly, and the electrical cabinet partition wall assembly all adopt a multi-layer composite structure, and the multi-layer composite structure includes, from the fire-exposed surface inward, a first fireproof and heat-insulating layer, a stainless steel inner skin, a second fireproof and heat-insulating layer, an aluminum honeycomb core, a cavity, and a stainless steel outer skin; two moldings are provided between the aluminum honeycomb core and the cavity, and the two moldings are respectively tightly attached to the outer wall of the aluminum honeycomb core and the outer wall of the cavity, with a gap left between the two moldings; a second fireproof rubber strip is provided on the outer periphery of the cavity; the multi-layer composite structure can ensure the overall weight of the fireproof partition wall structure is lightweight while taking into account the structural strength after bearing force.

[0008] The first connecting plate is fixedly connected to the upper side of the right partition wall assembly, and the right partition wall assembly is connected to the top connecting piece assembly through the first connecting plate; the second connecting plate is fixedly connected to the upper side of the left partition wall assembly, and the left partition wall assembly is connected to the top connecting piece assembly through the second connecting plate; the third connecting plate is fixedly connected to the upper side of the electrical cabinet partition wall assembly, and the electrical cabinet partition wall assembly is connected to the top connecting piece assembly through the third connecting plate; the connecting plates can effectively block fire sources.

[0009] A gap is left between the top connector assembly and the partition assembly thereunder, and a first fireproof rubber strip is arranged along the bottom surface of the top connector assembly in the gap; the fireproof rubber strip expands to block the heat source, thereby forming a fireproof and heat-insulating barrier.

[0010] The right partition wall assembly is connected to the electrical cabinet partition wall assembly through a right partition wall connector. The right partition wall connector adopts a square tube structure. Two groups of screw holes for bolts to pass through are opened on different side walls of the right partition wall connector, and the two groups of through holes are in different planes.

[0011] The left partition wall assembly is connected to the inspection door assembly through a left partition wall connector. The left partition wall connector adopts a square tube structure. Two groups of screw holes for bolts to pass through are opened on different side walls of the left partition wall connector, and the two groups of through holes are in different planes.

[0012] A first vehicle body connector is provided on the side of the right partition wall assembly away from the right partition wall connector, and the right partition wall assembly is connected to the vehicle body through the first vehicle body connector; a second vehicle body connector is provided along the length direction of the left partition wall assembly on the side of the left partition wall assembly away from the left partition wall connector, and the left partition wall assembly is connected to the vehicle body through the second vehicle body connector.

[0013] The bottom surface of the partition assembly is provided with a bottom and vehicle body connecting component assembly, through which the bottom end of the entire fireproof partition is tightly fixed on the vehicle body.

[0014] A frame assembly is provided on the outer periphery of the electrical cabinet partition assembly, and multiple auxiliary locking assemblies are provided on the upper and lower parts of the electrical cabinet partition assembly, which tightly lock the electrical cabinet partition assembly and the frame assembly through the multiple auxiliary locking assemblies; a locking assembly is provided in the middle part of the electrical cabinet partition assembly, and the locking assembly adopts a three-point locking assembly; the double locking strengthens the number and strength of the fastening points after the door leaf is locked, thereby avoiding structural deformation caused by flame combustion.

[0015] Beneficial effects: Compared with the prior art, the present invention has the following beneficial effects: (1) It has a larger passage width, which is 3 to 4 times that of ordinary fireproof partitions, making it easier for vehicle equipment installation, maintenance, and personnel to pass through; (2) On the premise of fireproof integrity and thermal insulation, it has a three-face fire barrier, which has a wider protection range, more application sites, and stronger adaptability. In addition to passenger vehicles such as subways and high-speed railways, it is also suitable for various mainline locomotives, freight locomotives, and track inspection vehicles, which have fireproof and thermal insulation requirements for equipment and personnel; (3) The design structure of the fireproof partition adopts a "Z-shaped zigzag" design, combined with fireproof expansion strips, to prevent direct penetration of fire sources and heat conduction; (4) The internal design of the partition adopts a multi-layer composite insulation structure to form a heat blocking barrier, reduce the heat conductivity of the fire source, and improve the fireproof integrity and thermal insulation of the fireproof partition; (5) The stress between the door leaves is improved, and a multi-point locking structure is adopted on the movable door leaves, which reduces the impact of the excessive opening width of the movable door leaves on the fireproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an axonometric view of the exterior of the fireproof partition according to the present invention;

[0017] Figure 2 This is an axonometric view of the interior surface of the fireproof partition according to the present invention;

[0018] Figure 3 This is a diagram of the installation and connection of the top connector and the right partition assembly in the present invention;

[0019] Figure 4 A schematic diagram showing the connection between the top connector and the right partition assembly from another angle in the invention;

[0020] Figure 5 This is a diagram of the installation and connection between the top connector and the left partition assembly in the invention;

[0021] Figure 6 A schematic diagram showing the connection between the top connector and the left partition assembly from another angle in the present invention;

[0022] Figure 7 This is a diagram of the installation and connection of the top connector assembly and the electrical cabinet assembly in the present invention;

[0023] Figure 8A schematic diagram showing the installation and connection between the top connector assembly and the electrical cabinet assembly in the present invention from another angle;

[0024] Figure 9 This is a schematic diagram of the connection between the left partition wall assembly and the inspection door assembly in the present invention;

[0025] Figure 10 This is a schematic diagram of the connection between the right partition wall component and the electrical cabinet partition wall component in the present invention;

[0026] Figure 11 Schematic diagram of the fireproof and heat-insulating structure of the fireproof partition of the present invention;

[0027] Figure 12 This is a schematic diagram of the fireproof and heat-insulating structure of the fireproof partition of the present invention from another angle;

[0028] Figure 13 It is a front view of the electrical cabinet assembly of the present invention;

[0029] Figure 14 for Figure 9 A schematic diagram of the structure of the middle locking assembly;

[0030] Figure 15 for Figure 9 Schematic diagram of the structure of the auxiliary locking component. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to specific implementation methods and the accompanying drawings.

[0032] like Figure 1 As shown, the present invention includes a partition assembly, which includes a left partition assembly 1, a top connector assembly 2, an inspection door assembly 3, an electrical cabinet partition assembly 4, and a right partition assembly 5. The left partition assembly 1 and the right partition assembly 2 are arranged in parallel; the electrical cabinet partition assembly 4 and the inspection door assembly 3 form a plane and are vertically connected between the left partition assembly 1 and the right partition assembly 2 to form a three-sided fireproof and heat-insulating barrier. A top connector assembly 2 is provided at the top of the partition assembly along its contour direction. The electrical cabinet partition assembly 4 adopts a double-layer folding hinge structure, and the movable direction of the electrical cabinet partition assembly 4 is opposite to the fire acceptance direction. The double-layer folding hinge structure can achieve a large opening, which is convenient for equipment and personnel to pass through.

[0033] like Figure 2As shown, a first vehicle body connector 6 is provided along the length of the right partition assembly 5 on the side away from the right partition connector 7. The right partition assembly 5 is connected to the vehicle body via the first vehicle body connector 6. A second vehicle body connector 12 is provided along the length of the left partition assembly 1 on the side away from the left partition connector 10. The left partition assembly 1 is connected to the vehicle body via the second vehicle body connector 12. The bottom surface of the partition assembly is provided with a bottom-to-body connector assembly 11, which tightly secures the bottom end of the entire fireproof partition to the vehicle body.

[0034] like Figures 3 and 4 As shown, the first connecting plate 13 is fixedly connected to the upper side of the right partition wall assembly 5, and the right partition wall assembly 5 is connected to the top connecting member assembly 2 through the first connecting plate 13. In this embodiment, one end of the first connecting plate 13 overlaps with the top connecting member assembly 2, and the other end of the first connecting plate 13 overlaps with the right partition wall assembly 5. The first connecting plate 13 is fixed with bolts at the overlapping positions with the top connecting member assembly 2 and the right partition wall assembly 5 respectively.

[0035] like Figures 5 and 6 As shown, the second connecting plate 15 is fixedly connected to the upper side of the left partition wall assembly 1, and the left partition wall assembly 1 is connected to the top connecting member assembly 2 through the second connecting plate 15. In this embodiment, one end of the second connecting plate 15 overlaps with the top connecting member assembly 2, and the other end of the second connecting plate 15 overlaps with the left partition wall assembly 1. The second connecting plate 15 is fixed with bolts at the overlapping positions with the top connecting member assembly 2 and the right partition wall assembly 5.

[0036] like Figures 7 and 8 As shown, a third connecting plate 16 is fixedly connected to the upper side of the electrical cabinet partition assembly 4, and the electrical cabinet partition assembly 4 is connected to the top connector assembly 2 through the third connecting plate 16. One end of the third connecting plate 16 overlaps with the top connector assembly 2, and the other end of the third connecting plate 16 overlaps with the electrical cabinet partition assembly 4. The overlapping parts of the third connecting plate 16, the top connector assembly 2, and the electrical cabinet partition assembly 4 are fixed with bolts respectively.

[0037] like Figures 3 to 8 As shown, a gap is left between the top connector assembly 2 and the partition assembly below it. A first fireproof strip 14 is installed along the bottom surface of the top connector assembly 2 in this gap. The first, second, and third connecting plates 13, 15, and 16 are all located on the fire-exposed side, i.e., the inner side of the partition assembly. The fire-exposed side is marked with a "sun" in the figure. These first, second, and third connecting plates 13, 15, and 16 are all made of fireproof and heat-insulating materials, effectively blocking fire sources. Simultaneously, the first fireproof strip 14 expands to block heat sources, forming a fireproof and heat-insulating barrier.

[0038] like Figure 9As shown, the left partition wall assembly 1 is connected to the inspection door assembly 3 through the left partition wall connector 10. The left partition wall connector 10 adopts a square tube structure. Two groups of screw holes for bolts to pass through are opened on different side walls of the left partition wall connector 10, and the two groups of through holes are in different planes.

[0039] like Figure 10 As shown, the right partition assembly 5 is connected to the electrical cabinet partition assembly 4 via the right partition connector 7. The right partition connector 7 also adopts a square tube structure. Two sets of screw holes for bolts to pass through are also provided on different side walls of the right partition connector 7, and the two sets of through holes are located in different planes. The left partition assembly 1, the inspection door assembly 3, the electrical cabinet partition assembly 4, and the right partition assembly 5 in the fireproof partition are connected by the left partition connector 10 and the right partition connector 7 to form a "U"-shaped integral fireproof structure. The left partition connector 10 and the right partition connector 7 both adopt a square tube structure, which can withstand cross stress in the X and Y directions when the components are deformed by fire.

[0040] like Figures 11 to 12 As shown, the left partition assembly 1, right partition assembly 2, inspection door assembly 3, and electrical cabinet partition assembly 4 all utilize a multi-layer composite structure. From the fire-exposed surface inward, the multi-layer composite structure comprises, in order: a first fireproof and heat-insulating layer 17, a stainless steel inner skin 18, a second fireproof and heat-insulating layer 19, an aluminum honeycomb core 20, a cavity 21, and a stainless steel outer skin 22. Two moldings 24 are positioned between the aluminum honeycomb core 20 and the cavity 21. These moldings 24 adhere closely to the outer walls of the aluminum honeycomb core 20 and the outer walls of the cavity 21, respectively, with a gap between them. A second fireproof adhesive strip 23 is positioned around the periphery of the cavity 21. When exposed to a certain temperature and heat, the second fireproof adhesive strip 23 expands to fill the door gap. The present invention primarily aims to minimize the overall weight of the fireproof partition structure while maintaining structural strength under load. If a composite structure consisting solely of aluminum alloy sheet material and a honeycomb core were used, the aluminum alloy skeleton and aluminum alloy skin would gradually soften and lose strength during combustion, resulting in failure of the integrity test in the fireproofing test. If a composite structure consisting entirely of stainless steel plates and stainless steel honeycomb cores were used, the overall weight would exceed the design requirements, and the cost-effectiveness of stainless steel honeycomb cores would be significantly lower than that of aluminum honeycomb. Testing confirmed that a composite structure consisting solely of stainless steel plates and fireproof materials would not meet the technical performance requirements. Therefore, a composite structure consisting of stainless steel plates, fireproof materials, and aluminum honeycomb cores was selected based on experimental verification.

[0041] like Figures 13 to 15As shown, a frame assembly 25 is provided on the periphery of the electrical cabinet partition assembly 4, and multiple auxiliary locking assemblies 8 are provided at the junction of the electrical cabinet partition assembly 4 and the frame assembly 25. When locking the door panels of the electrical cabinet partition assembly 4, the upper and lower auxiliary locking assemblies 8 are used to lock the left and right door panels at the end of the electrical cabinet partition assembly 4, respectively. Then, the middle left and middle right door panels are closed. The middle left door panel is locked using the upper and lower auxiliary locking assemblies 8, and the middle right door panel is locked to the middle left door panel using the locking assembly 9. In this embodiment, the locking assembly 9 is a three-point locking assembly. When locking, the three-point locking assembly is locked at the upper, middle, and lower positions, tightly locking the middle left door panel and the middle right door panel. The auxiliary locking assembly 8 tightly locks the left and right door panels at the end to the left and right door panels at the middle.

[0042] Since the present invention requires fire protection and heat insulation, when exposed to fire, the atmospheric pressure decreases due to the flame burning on the exposed surface, thus generating an atmospheric pressure difference with the back-fire surface. As the fire exposure time increases, the pressure difference between the inside and outside gradually increases, and the overall structure of the electrical cabinet partition assembly 4 will be under pressure from the outside to the inside, resulting in deformation. If the locking structure cannot firmly lock the door leaf, the deformation caused by the internal and external pressure difference will cause the locking structure to fail, causing the door leaf to deform and open or produce a large deformation gap. The flame will penetrate the electrical cabinet partition assembly 4, causing the test to fail, and the fire protection integrity requirements cannot be met. Therefore, in the design of the locking structure, we borrowed the design ideas of the sky and earth locks, combined with the customer's requirements for the lock core, and adopted a locking structure design with one-point control and three-point locking. At the same time, we added an auxiliary locking device to the electrical cabinet partition assembly 4, which doubly reinforced the number and strength of the fastening points after the door leaf is locked, avoiding the influence of structural deformation during flame burning.

[0043] The heat conduction and structural design principles of the fireproof structure of the present invention are as follows: on the fire-exposed surface, due to the direct exposure to the heat and temperature of the flame, the heating area and intensity are the largest; after passing through the fireproof and heat-insulating materials and stainless steel plates on the surface, the heat and temperature are attenuated. Then, through the insulation of a certain thickness of fireproof and heat-insulating materials, the heat and temperature are attenuated again; then, through the aluminum honeycomb core and the steel skeleton cavity, the heat and temperature are attenuated again, and finally, the heat transferred to the stainless steel plate on the back-to-fire surface will be the actual detected temperature. In this structure, the transfer of temperature and heat is mainly isolated by two layers of fireproof materials, two layers of stainless steel plates, and one layer of cavity structure, and the heat conduction decreases step by step. At the same time, in the direct contact of metal materials, a "broken bridge" design is adopted to reduce the contact area or partially isolate the direct contact of metals, thereby further reducing the transfer of temperature and heat.

Claims

1. A fireproof partition with large width and three-sided insulation and fire protection, including a partition assembly, characterized by: The partition assembly comprises a left partition assembly (1), a top connector assembly (2), a right partition assembly (5), an inspection door assembly (3), and an electrical cabinet partition assembly (4); the left partition assembly (1) and the right partition assembly (5) are arranged in parallel; the electrical cabinet partition assembly (4) and the inspection door assembly (3) form a plane and are vertically connected between the left partition assembly (1) and the right partition assembly (5); the top connector assembly (2) is connected to the top of each partition assembly along the contour direction thereof, forming a three-sided fireproof and heat-insulating barrier; The electrical cabinet partition wall assembly (4) adopts a double-layer folding hinge structure, and the movable direction of the electrical cabinet partition wall assembly (4) is opposite to the fire-prevention force direction; The left partition wall assembly (1), the right partition wall assembly (5), the inspection door assembly (3), and the electrical cabinet partition wall assembly (4) all adopt a multi-layer composite structure, wherein the multi-layer composite structure comprises, from the fire-exposed surface inward, a first fireproof and heat-insulating layer (17), a stainless steel inner skin (18), a second fireproof and heat-insulating layer (19), an aluminum honeycomb core (20), a cavity (21), and a stainless steel outer skin (22); two moldings (24) are provided between the aluminum honeycomb core (20) and the cavity (21), and the two moldings (24) are respectively closely attached to the outer wall of the aluminum honeycomb core (20) and the outer wall of the cavity (21), and a gap is left between the two moldings (24); and a second fireproof rubber strip (23) is provided on the outer periphery of the cavity (21).

2. The wide, three-sided insulated fireproof partition according to claim 1, characterized in that: A first connecting plate (13) is fixedly connected to the upper side of the right partition wall assembly (5), and the right partition wall assembly (5) is connected to the top connector assembly (2) via the first connecting plate (13); A second connecting plate (15) is fixedly connected to the upper side of the left partition wall assembly (1), and the left partition wall assembly (1) is connected to the top connector assembly (2) via the second connecting plate (15); A third connecting plate (16) is fixedly connected to the upper side of the electrical cabinet partition assembly (4), and the electrical cabinet partition assembly (4) is connected to the top connector assembly (2) via the third connecting plate (16).

3. The wide, three-sided insulated fireproof partition according to claim 2, characterized in that: A gap is left between the top connector assembly (2) and the partition assembly below it, and a first fireproof rubber strip (14) is arranged along the bottom surface of the top connector assembly (2) at the gap.

4. The wide, three-sided insulated fireproof partition according to claim 1, characterized in that: The right partition wall assembly (5) is connected to the electrical cabinet partition wall assembly (4) via a right partition wall connector (7). The right partition wall connector (7) adopts a square tube structure. Two groups of screw holes for bolts to pass through are provided on different side walls of the right partition wall connector (7), and the two groups of through holes are located in different planes.

5. The wide, three-sided insulated fireproof partition according to claim 1, characterized in that: The left partition wall assembly (1) is connected to the inspection door assembly (3) via a left partition wall connector (10). The left partition wall connector (10) adopts a square tube structure. Two groups of screw holes for bolts to pass through are provided on different side walls of the left partition wall connector (10), and the two groups of through holes are located in different planes.

6. The wide, three-sided insulated fireproof partition according to claim 4, characterized in that: A first vehicle body connector (6) is provided on a side of the right partition wall assembly (5) away from the right partition wall connector (7) along the length direction of the right partition wall assembly (5), and the right partition wall assembly (5) is connected to the vehicle body via the first vehicle body connector (6); A second vehicle body connecting piece (12) is provided on a side of the left partition wall component (1) away from the left partition wall connecting piece (10) along the length direction of the left partition wall component (1), and the left partition wall component (1) is connected to the vehicle body via the second vehicle body connecting piece (12).

7. The wide, three-sided insulated fireproof partition according to claim 1, characterized in that: The bottom surface of the partition assembly is provided with a bottom and vehicle body connecting component assembly (11), and the bottom end of the entire fireproof partition is tightly fixed on the vehicle body through the bottom and vehicle body connecting component assembly (11).

8. The wide, three-sided insulated fireproof partition according to claim 1, characterized in that: The outer periphery of the electrical cabinet partition wall assembly (4) is provided with a frame assembly (25); the upper and lower parts of the electrical cabinet partition wall assembly (4) are provided with a plurality of auxiliary locking assemblies (8), and the electrical cabinet partition wall assembly (4) and the frame assembly (25) are tightly locked by the plurality of auxiliary locking assemblies (8); the middle part of the electrical cabinet partition wall assembly (4) is provided with a locking assembly (9), and the locking assembly (9) adopts a three-point locking assembly.

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