Fireproof middle roof plate for rail transit vehicle

Abstract

The utility model provides a fireproof middle roof plate for a rail transit vehicle, which comprises a middle roof plate main body, and the middle roof plate main body is of a multi-layer structure and comprises a built-in fireproof expansion layer, a fire extinguishing agent filling layer and a decorative cover plate detachably mounted at the bottom of the fire extinguishing agent filling layer, the fireproof expansion layer is located on the upper side of the fire extinguishing agent filling layer, the fire extinguishing agent filling layer is filled with a fire extinguishing agent, and the decorative cover plate is used for preventing the fire extinguishing agent from being sprayed out of the fire extinguishing agent filling layer; a plurality of through air conditioner air outlets are uniformly formed in the middle top plate main body, and when a fire disaster occurs at the top, the fireproof expansion layer is heated to expand and then blocks the air conditioner air outlets; when a fire occurs in the passenger room, the decorative cover plate is detached, and the fire extinguishing agent in the fire extinguishing agent filling layer can be sprayed out through the air conditioner air outlet; the fireproof middle roof plate for the rail transit vehicle overcomes the defect that an existing compartment middle roof plate is poor in fireproof performance.

Description

Technical Field

[0001] This utility model relates to the field of rail transit vehicles, and in particular to a fireproof roof panel for rail transit vehicles. Background Technology

[0002] With the acceleration of urbanization in my country, green and low-carbon development, energy conservation and environmental protection, and intelligent convenience will be the main characteristics of future urban functions. Vigorously developing urban rail transit has become a smart choice for many cities in China to develop transportation. In addition to the existing subways and light rail, modern trams and urban express rail are also developing rapidly.

[0003] The roof panel in rail transit vehicles is a crucial component, typically installed on the top of the carriage. Existing roof panels have a limited function, serving only a decorative purpose to conceal equipment on the carriage roof. Due to space constraints in trains, numerous electrical components, circuits, and air conditioning ducts are located behind the roof panel. Furthermore, existing roof panels lack fire resistance and have poor fire protection; in the event of a fire, the roof would become a major fire zone, posing a significant safety hazard. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The problem to be solved by this utility model is to provide a fireproof roof panel for rail transit vehicles, so as to overcome the defect of poor fire resistance of existing roof panels in carriages.

[0006] (II) Technical Solution

[0007] To address the aforementioned technical problems, this utility model provides a fireproof roof panel for rail transit vehicles, comprising a main body of the roof panel. The main body of the roof panel has a multi-layer structure, including a built-in fire-resistant expansion layer, a fire extinguishing agent filling layer, and a decorative cover plate detachably installed at the bottom of the fire extinguishing agent filling layer. The fire-resistant expansion layer is located above the fire extinguishing agent filling layer, and the fire extinguishing agent filling layer is filled with fire extinguishing agent. The decorative cover plate is used to prevent the fire extinguishing agent from being sprayed out from the fire extinguishing agent filling layer. Multiple through-type air conditioning vents are evenly arranged on the main body of the roof panel. When a fire occurs at the top, the fire-resistant expansion layer expands due to heat and blocks the air conditioning vents. When a fire occurs in the passenger compartment, the decorative cover plate is removed, and the fire extinguishing agent in the fire extinguishing agent filling layer can be sprayed out through the air conditioning vents.

[0008] In some embodiments, the air conditioning outlet includes heat shrink holes and hollow protrusions arranged coaxially. The heat shrink holes are disposed on the fire-resistant expansion layer, and the hollow protrusions are disposed on the decorative cover plate. After the hollow protrusions extend into the fire extinguishing agent filling layer, they connect with the corresponding heat shrink holes. Under normal conditions, the hollow protrusions can prevent the fire extinguishing agent from entering the air conditioning outlet.

[0009] In some embodiments, multiple filling tubes are installed on both sides of the main body of the top plate; the inner end of the filling tube is inserted into the fire extinguishing agent filling layer for filling the fire extinguishing agent filling layer with fire extinguishing agent.

[0010] In some embodiments, the fire-resistant expansion layer has a built-in fire-resistant expansion pad, which expands when heated to seal the heat shrink holes, thereby preventing toxic fumes from spreading into the passenger room when the top equipment catches fire.

[0011] In some embodiments, a mounting bracket is also included, the top of the central top plate body is fixed on the mounting bracket, and detachable lampshade plates are respectively mounted on both sides of the mounting bracket.

[0012] In some embodiments, the mounting bracket includes symmetrically arranged top crossbeams and top longitudinal beams, the top crossbeams and the top longitudinal beams being arranged perpendicularly; the top crossbeams are fixed to both sides of the top plate body, and the top longitudinal beams are connected between the two top crossbeams by mounting members.

[0013] In some embodiments, the lampshade plate is detachably installed between the central top longitudinal beam and the central top plate body. The central top longitudinal beam is provided with a ball head groove, and one end of the lampshade plate is provided with a ball head adapted to the ball head groove. The other end of the lampshade plate is attached to the central top plate body by a magnet.

[0014] In some embodiments, the bottom of the decorative cover is provided with handles at the four corners; sealing strips for sealing external air conditioners are symmetrically installed on both sides of the top of the main body of the central top plate.

[0015] In some embodiments, the extinguishing agent is dry powder.

[0016] (III) Beneficial Effects

[0017] This utility model provides a fireproof roof panel for rail transit vehicles. The main body of the roof panel adopts a multi-layer structure, with an internal fire-resistant expansion layer, a fire extinguishing agent filling layer, and a decorative cover. The dense air conditioning vents on the main body of the roof panel can provide noise reduction for the vehicle, making the ride quieter and more comfortable for passengers. At the same time, the evenly spaced and densely packed small holes make the airflow more uniform, and the air volume is more comfortable for passengers. The fire-resistant expansion layer is equipped with an internal fire-resistant expansion pad. When the top comes into contact with flames or feels a rise in temperature, the fire-resistant expansion pad will expand rapidly, sealing the air conditioning vents to prevent flames from escaping and to isolate smoke. The fire extinguishing agent filling layer is filled with dry powder. When a fire occurs inside the passenger compartment, the decorative cover can be removed, and the dry powder will fall evenly to extinguish the fire and isolate the flames. It has good fire resistance performance and overcomes the shortcomings of the poor fire resistance of existing car roof panels. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of a fireproof roof panel for rail transit vehicles according to the present invention.

[0020] Figure 2 This is a perspective view of a fireproof roof panel for rail transit vehicles according to this utility model.

[0021] Figure 3 This is an exploded view of a fireproof roof panel for rail transit vehicles according to this utility model;

[0022] Figure 4 This is a structural schematic diagram of a fireproof roof panel for rail transit vehicles according to this utility model;

[0023] Figure 5 for Figure 4 A sectional view taken along section AA;

[0024] Figure 6 for Figure 5 Enlarged view of Part I;

[0025] Figure 7 This is a perspective view of a fireproof decorative cover plate for the top plate of a rail transit vehicle according to the present invention.

[0026] Figure 8 This is a perspective view of a fireproof decorative cover plate for the top plate of a rail transit vehicle according to this utility model.

[0027] Figure 9 This is a perspective view of a fireproof roof lamp cover for rail transit vehicles according to the present invention.

[0028] Figure 10 This is a perspective view of a fireproof roof mounting bracket for rail transit vehicles according to the present invention.

[0029] The component names corresponding to the various labels in the attached figures are as follows: 1. Main body of the central top plate; 11. Fire-resistant expansion layer; 12. Fire extinguishing agent filling layer; 13. Decorative cover plate; 14. Air conditioning outlet; 111. Heat shrink hole; 131. Hollow protruding column; 132. Handle; 2. Filling tube; 3. Mounting bracket; 31. Central top crossbeam; 32. Central top longitudinal beam; 33. Mounting component; 321. Ball head groove; 4. Lamp cover plate; 401. Ball head; 402. Magnet component; 5. Sealing strip. Detailed Implementation

[0030] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0031] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0033] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0034] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0035] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0036] See Figures 1 to 10This utility model provides a fireproof roof panel for rail transit vehicles, including a main body 1. The main body 1 has a multi-layer structure, including a built-in fire-resistant expansion layer 11, a fire extinguishing agent filling layer 12, and a decorative cover 13 detachably installed at the bottom of the fire extinguishing agent filling layer 12. The fire-resistant expansion layer 11 is located on the upper side of the fire extinguishing agent filling layer 12, which is filled with fire extinguishing agent. The decorative cover 13 is used to prevent the fire extinguishing agent from being sprayed out of the fire extinguishing agent filling layer 12. The fire extinguishing agent can be dry powder, and the decorative cover 13 can be installed on the lower side of the fire extinguishing agent filling layer 12 by magnetic attraction or snap-fit ​​for easy disassembly and assembly. Multiple through-type air conditioning vents 14 are evenly arranged on the main body 1. The dense air conditioning vents can provide noise reduction for the vehicle, resulting in less noise and a more comfortable ride for passengers. Simultaneously, the evenly spaced and densely packed vents make the airflow more uniform, providing a more comfortable airflow for passengers.

[0037] A fire-resistant expansion layer 11 is installed. When a fire occurs at the top of the main body 1 of the central roof slab, the fire-resistant expansion layer 11 expands due to heat and blocks the air conditioning outlet 14 to prevent flames from spreading and to isolate smoke. When a fire occurs in the guest room, the decorative cover 13 can be removed, and the extinguishing agent in the extinguishing agent filling layer 12 can be sprayed out through the air conditioning outlet 14. The dry powder extinguishing agent will fall evenly to extinguish the fire and isolate the flames, thus having good fire resistance performance.

[0038] In some embodiments, such as Figures 4 to 6 As shown, the air conditioning vent 14 includes heat shrink holes 111 and hollow protrusions 131 arranged coaxially. The heat shrink holes 111 are disposed on the fire-resistant expansion layer 11, and the hollow protrusions 131 are integrally disposed on the decorative cover plate 13. The hollow protrusions 131 extend into the fire extinguishing agent filling layer 12 and connect with the corresponding heat shrink holes 111. Under normal conditions, the hollow protrusions 131 can prevent the fire extinguishing agent from entering the air conditioning vent 14. The decorative cover plate 13 can be made of PC material, and the surface can be printed with patterns that echo the interior effect of the vehicle.

[0039] In some embodiments, such as Figure 1 and Figure 2 As shown, multiple filling tubes 2 are installed on both sides of the main body 1 of the central top plate; the inner end of the filling tube 2 is inserted into the fire extinguishing agent filling layer 12 for filling the fire extinguishing agent filling layer 12 with fire extinguishing agent. When the train is running normally, the dry powder inside the fire extinguishing agent filling layer 12 is filled through the filling tubes 2. In case of fire, after the decorative cover plate 13 is removed, the fire extinguishing agent filling layer 12 will spray out the dry powder.

[0040] In some embodiments, such as Figure 5 and Figure 6As shown, the fire-resistant expansion layer 11 contains a fire-resistant expansion pad. When heated, the expansion pad expands, sealing the heat-shrink pores 111 to prevent toxic fumes from spreading into the passenger room in the event of a fire in the top equipment. The fire-resistant expansion pad is existing technology and can be made of graphite material; it will not be described further in this embodiment.

[0041] In some embodiments, such as Figure 1 , Figure 3 , Figure 4 and Figure 10 As shown, it also includes a mounting bracket 3. The top of the main body 1 of the central top plate is fixed to the mounting bracket 3, and detachable lampshade panels 4 are installed on both sides of the mounting bracket 3. The mounting bracket 3 includes symmetrically arranged central top crossbeams 31 and central top longitudinal beams 32, which are arranged vertically. The central top crossbeams 31 are fixed to both sides of the main body 1 of the central top plate, and the central top longitudinal beams 32 are connected between the two central top crossbeams 31 by mounting members 33. The mounting members 33 can be connected by fasteners and connecting plates.

[0042] In some embodiments, such as Figure 6 , Figure 9 and Figure 10 As shown, the lamp cover plate 4 is detachably installed between the central roof longitudinal beam 32 and the central roof plate body 1. The central roof longitudinal beam 32 is provided with a ball head groove 321. One end of the lamp cover plate 4 is provided with a ball head 401 that is adapted to the ball head groove 321. The ball head 401 of the lamp cover plate 4 is placed in the ball head groove 321. The other end of the lamp cover plate 4 is attracted to the central roof plate body 1 by a magnet 402. The lamp cover plates 4 are provided on both sides of the central roof plate body 1 to provide carriage lighting. One end of the lamp cover plate 4 is fitted with the central roof longitudinal beam with a ball head, and the other end is provided with a magnet to be attracted to the central roof plate body. If the internal lamp is damaged, it can be inspected and repaired by opening the lamp cover plate. When disassembling, the magnet 402 can be separated by force without disassembling or reassembling the fasteners. The lamp cover plate 4 can be opened to inspect and maintain the lamp.

[0043] In some embodiments, such as Figure 8 As shown, the bottom of the decorative cover 13 has handles 132 at the four corners. The handles 132, which are integrated with the decorative cover 13, make it easier to remove the decorative cover 13.

[0044] In some embodiments, such as Figure 1 , Figure 3 and Figure 4As shown, sealing strips 5 for sealing external air conditioners are symmetrically installed on both sides of the top of the main body 1 of the fireproof roof panel. This fireproof roof panel is an integrated roof panel, integrating the roof longitudinal beams, roof cross beams, lampshade panels, and the main body of the roof panel. These components are all assembled in the workshop. After delivery to the site, only the integrated roof panel needs to be installed on the vehicle body as a whole, without the need to adjust the gap between the lampshade panels and the main body of the roof panel, reducing the workload of on-site installation and improving the efficiency of on-site installation. After the overall installation, the air conditioner is pressed tightly against the sealing strips, and the air conditioner can deliver air to passengers through the air conditioning vents. The air delivery through the small holes is more gentle, improving the passenger riding experience.

[0045] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.

[0046] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A fireproof center roof for rail transit vehicles, comprising a center roof body (1), characterized in that: The middle roof plate body (1) is a multi-layer structure, comprising an internal fireproof expansion layer (11), a fire extinguishing agent filling layer (12), and a decorative cover plate (13) detachably mounted at the bottom of the fire extinguishing agent filling layer (12), the fireproof expansion layer (11) is located on the upper side of the fire extinguishing agent filling layer (12), the fire extinguishing agent filling layer (12) is filled with fire extinguishing agent, and the decorative cover plate (13) is used to prevent the fire extinguishing agent from being sprayed out of the fire extinguishing agent filling layer (12); a plurality of air conditioner air outlets (14) are uniformly arranged on the middle roof plate body (1), when a fire occurs on the roof, the fireproof expansion layer (11) is expanded after being heated to block the air conditioner air outlet (14); when a fire occurs in the passenger room, the decorative cover plate (13) is removed, and the fire extinguishing agent in the fire extinguishing agent filling layer (12) can be sprayed out through the air conditioner air outlet (14).

2. The fireproof intermediate roof for rail transit vehicles according to claim 1, characterized in that: The air conditioner air outlet (14) comprises a thermal shrinkage hole (111) and a hollow convex column (131) arranged on the same axis, the thermal shrinkage hole (111) is arranged on the fireproof expansion layer (11), and the hollow convex column (131) is arranged on the decorative cover plate (13); the hollow convex column (131) extends into the fire extinguishing agent filling layer (12) and is connected with the corresponding thermal shrinkage hole (111), and under normal circumstances, the hollow convex column (131) can block the fire extinguishing agent from entering the air conditioner air outlet (14).

3. The fireproof intermediate roof for rail transit vehicles according to claim 1, characterized in that: A plurality of filling pipes (2) are mounted on both sides of the middle roof plate body (1); the inner side end of the filling pipe (2) is inserted into the fire extinguishing agent filling layer (12) to fill the fire extinguishing agent into the fire extinguishing agent filling layer (12).

4. The fireproof intermediate roof for rail transit vehicles according to claim 2, characterized in that: The fireproof expansion layer (11) is internally provided with a fireproof expansion pad, the fireproof expansion pad is expanded after being heated to close the thermal shrinkage hole (111), so as to prevent toxic smoke from spreading into the passenger room when the equipment on the roof catches fire.

5. The fireproof intermediate roof for rail transit vehicles according to claim 1, characterized in that: Further comprising a mounting bracket (3), the top of the middle roof plate body (1) is fixed on the mounting bracket (3), and detachable lamp cover plates (4) are mounted on both sides of the mounting bracket (3).

6. The fireproof intermediate roof for rail transit vehicles according to claim 5, characterized in that: The mounting bracket (3) comprises symmetrically arranged middle roof transverse beams (31) and middle roof longitudinal beams (32), and the middle roof transverse beams (31) and the middle roof longitudinal beams (32) are arranged vertically; the middle roof transverse beams (31) are fixed on both sides of the middle roof plate body (1), and the middle roof longitudinal beams (32) are connected between the two middle roof transverse beams (31) through mounting members (33).

7. The fireproof intermediate roof for rail transit vehicles according to claim 6, characterized in that: The lamp cover plate (4) is detachably mounted between the middle roof longitudinal beam (32) and the middle roof plate body (1), the middle roof longitudinal beam (32) is provided with a ball head groove (321), one end of the lamp cover plate (4) is provided with a ball head portion (401) matched with the ball head groove (321), and the other end of the lamp cover plate (4) is adsorbed on the middle roof plate body (1) through a magnet member (402).

8. The fireproof intermediate roof for rail transit vehicles according to claim 1, characterized in that: The bottom of the decorative cover plate (13) is provided with a buckle hand (132) at the four corners.

9. The fireproof intermediate roof for rail transit vehicles according to claim 1, characterized in that: Sealing strips (5) for sealing external air conditioners are symmetrically mounted on both sides of the top of the middle roof plate body (1).

10. The fireproof intermediate roof for rail transit vehicles according to claim 1, characterized in that: The fire extinguishing agent is dry powder.

Images