Fire extinguishing and smoke exhausting device for urban rail vehicle

Abstract

The utility model discloses an urban rail vehicle fire-extinguishing and smoke-exhausting device, which relates to the technical field of fire-extinguishing and smoke-exhausting devices and comprises a mounting plate, a water suction pump is fixed at the center of the top end of the mounting plate, and a water supply pipe penetrating below the mounting plate is fixed at the output end of the water suction pump; according to the utility model, flame detection is carried out inside the compartment of the urban rail vehicle through the flame detector, and the water pump is started to pump out water inside the water storage tank when a fire disaster is detected inside the compartment, so that the spray head is utilized to carry out automatic spray fire extinguishment, and therefore, the device does not need to be manually started for fire extinguishment, and the fire disaster can be found and extinguished in time; the device is simple in structure, high in intelligent degree and convenient to use, smoke in the compartment of the urban rail vehicle is detected through the smoke sensor, the exhaust fan in the exhaust hood is started to conduct air draft and smoke exhaust work when smoke in the compartment is detected, and therefore the device not only has the fire extinguishing function, but also can rapidly exhaust smoke in the compartment of the rail vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing and smoke exhaust devices, in particular to a fire extinguishing and smoke exhaust device for urban rail vehicles. Background Art

[0002] With the improvement of living standards, in order to alleviate the increasing congestion and traffic conditions and protect the environment, rail trains have emerged as a new type of environmentally friendly and low-cost means of transportation. Urban rail vehicles are designed for public transportation in urban areas. They run on dedicated tracks and their main function is to transport passengers. These vehicles are usually powered by electricity and use wheel-rail operation. They can provide fast and large-scale public transportation services. Urban rail vehicles are generally equipped with corresponding fire extinguishing devices to deal with fires.

[0003] For example, the utility model patent with application number 201921985884.5 discloses a rail vehicle compartment fire extinguishing system, including a monitoring display located in the driver's cab, a pump group box located in the lead car, and pipelines running through the entire car. Each car is equipped with a monitoring host, a pump group box solenoid valve, a flame detector installed on the passenger compartment ceiling, a camera and a fine water mist nozzle. The monitoring host is connected to the train network, and the camera, flame detector and pump group box solenoid valve of each car are connected to the monitoring host. The monitoring display located in the driver's cab and the pump group box of the lead car are connected to the monitoring host of the lead car.

[0004] Based on the findings in the prior art, most of the existing urban rail vehicle fire extinguishing devices have a single function, and only have a single fire extinguishing function, but do not have an intelligent smoke exhaust function, resulting in the inability to quickly exhaust the smoke in the rail vehicle compartment during the fire extinguishing process, and the safety is not high. In addition, the existing urban rail vehicle fire extinguishing devices are not intelligent, and generally require manual activation of the fire extinguishing function, and cannot detect and extinguish the fire in time, which is inconvenient to use. Therefore, the utility model proposes a fire extinguishing and smoke exhaust device for urban rail vehicles to solve the problems existing in the prior art. Utility Model Content

[0005] In response to the above problems, the purpose of the present utility model is to propose a fire extinguishing and smoke exhaust device for urban rail vehicles to solve the problem that the existing urban rail vehicle fire extinguishing devices do not have an intelligent smoke exhaust function, resulting in the inability to quickly exhaust the smoke in the rail vehicle compartment during the fire extinguishing process, and the low degree of intelligence, generally requiring manual fire extinguishing, and unable to detect and extinguish the fire in time.

[0006] In order to achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a fire extinguishing and smoke exhaust device for urban rail vehicles, including a mounting plate, a water pump is fixed at the center position of the top of the mounting plate, a water supply pipe that runs through the bottom of the mounting plate is fixed at the output end of the water pump, a sprinkler head is fixed to the bottom end of the water supply pipe through a rotating docking mechanism, a flame detector electrically connected to the water pump is fixed to the bottom end of the mounting plate, smoke exhaust pipes are fixed at the four corners of the top of the mounting plate, the bottom end of the smoke exhaust pipe runs through the bottom of the mounting plate and is fixed with a smoke exhaust hood, an exhaust fan is fixed inside the exhaust hood, and a smoke sensor electrically connected to the exhaust fan is fixed on the side of the bottom end of the mounting plate away from the flame detector.

[0007] A further improvement is that mounting blocks are symmetrically fixed to the outer walls on both sides of the mounting plate, mounting bolts are threaded through the mounting blocks, and the mounting plate is fixed to the top of the interior of the urban rail vehicle through the mounting bolts on the mounting blocks.

[0008] A further improvement is that the top of the exhaust hood is fixedly connected to the exhaust pipe through a sealing flange, and a dust filter ring plate is detachably mounted on the bottom of the exhaust hood, and a dust filter net is fixed on the inner side of the dust filter ring plate.

[0009] A further improvement is that a threaded collar is fixedly sleeved on the outer wall of the dust filter ring plate, the upper part of the threaded collar is threadedly sleeved on the outside of the smoke exhaust hood, and the outer wall of the smoke exhaust hood is provided with an external thread that matches the internal thread of the threaded collar.

[0010] A further improvement is that the rotary docking mechanism includes a water inlet pipe fixed to the top of the sprinkler head and a threaded screw tube slidably mounted on the outside of the water inlet pipe. The threaded screw tube is threadedly mounted on the water supply pipe, and the outer wall of the water supply pipe is provided with an external thread that matches the internal thread of the threaded screw tube.

[0011] A further improvement is that a limiting convex ring is fixed on the outer wall of the water inlet pipe, a limiting groove adapted to the limiting convex ring is opened on the inner wall of the threaded rotating pipe, and the limiting convex ring extends into the limiting groove.

[0012] A further improvement is that a rubber sealing ring is fixed to the top of the water inlet pipe, the cross section of the rubber sealing ring is designed to be convex, and a sealing groove adapted to the rubber sealing ring is opened at the bottom of the water supply pipe.

[0013] The beneficial effects of the present invention are as follows: the present invention includes a mounting plate, which detects flames inside the urban rail vehicle compartment through a flame detector, and starts a water pump to pump out water from the water tank when a fire is detected inside the compartment, so as to use a sprinkler head to automatically spray and extinguish the fire, thereby eliminating the need for manual fire extinguishing of the device, and enabling timely detection and extinguishing of fires. The device has a high degree of intelligence and is easy to use, and detects smoke inside the urban rail vehicle compartment through a smoke sensor, and starts an exhaust fan in the exhaust hood to exhaust air and smoke when smoke is detected inside the compartment, thereby enabling the device to not only have a fire extinguishing function, but also quickly exhaust smoke from the rail vehicle compartment, and is rich in functions, thereby improving safety to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the utility model;

[0015] Figure 2 This is a cross-sectional view of the smoke exhaust hood of the present utility model;

[0016] Figure 3 This is a cross-sectional view of the water inlet pipe and the threaded rotating pipe of the utility model;

[0017] Figure 4 This utility model Figure 3 A in the enlarged view.

[0018] Among them: 1. Mounting plate; 2. Water pump; 3. Water supply pipe; 4. Sprinkler head; 5. Flame detector; 6. Smoke exhaust pipe; 7. Smoke exhaust hood; 8. Exhaust fan; 9. Smoke sensor; 10. Mounting block; 11. Dust filter ring plate; 12. Dust filter screen; 13. Threaded collar; 14. Water inlet pipe; 15. Threaded rotary tube; 16. Limiting convex ring; 17. Limiting groove; 18. Rubber sealing ring; 19. Sealing groove. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0020] according to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, this embodiment provides a fire extinguishing and smoke exhaust device for urban rail vehicles, including a mounting plate 1 fixed to the top of the interior of the vehicle by mounting bolts and a water pump 2 fixed to the center position of the top of the mounting plate 1. The water inlet end of the top of the water pump 2 is connected to the water tank of the urban rail vehicle through a pipe, and water for fire extinguishing is provided through the water tank. The water outlet end of the bottom end of the water pump 2 is fixed with a water supply pipe 3 by bolts. The bottom end of the water supply pipe 3 passes through the bottom of the mounting plate 1. A sprinkler head 4 for spraying fire extinguishing is fixed to the bottom end of the water supply pipe 3. The sprinkler head 4 and the water supply pipe 3 are fixedly connected by a rotating docking mechanism. A flame detector 5 is fixed to the left side of the bottom end of the mounting plate 1 by bolts. The flame detector 5 is connected to the PLC control system of the device and is used to start the water pump 2 through the PLC control system when a fire is detected in the vehicle. The flame detector 5 detects flames inside the vehicle and starts the water pump 2 to pump water out of the water tank when a fire is detected inside the vehicle. In order to utilize the sprinkler head 4 for automatic sprinkler fire extinguishing, a smoke exhaust pipe 6 is fixed to the top of the mounting plate 1. There are four groups of smoke exhaust pipes 6 and they are respectively located at the four corners of the mounting plate 1. The top of the smoke exhaust pipe 6 extends to the outside of the rail vehicle through a pipeline to facilitate the discharge of smoke to the outside. The bottom end of the smoke exhaust pipe 6 passes through the bottom of the mounting plate 1 and is fixed with a smoke exhaust hood 7 with an opening at the bottom end through a sealing flange. An exhaust fan 8 is fixed inside the smoke exhaust hood 7 by bolts, and the smoke in the car is sucked into the smoke exhaust hood 7 by the exhaust fan 8. A smoke sensor 9 is fixed to the right side of the bottom end of the mounting plate 1 by bolts. The smoke sensor 9 is connected to the PLC control system of the device for starting the exhaust fan 8 through the PLC control system when smoke is detected inside the car. Smoke detection is performed on the interior of the urban rail vehicle car through the smoke sensor 9, and the exhaust fan 8 in the smoke exhaust hood 7 is started to exhaust and exhaust smoke when smoke is detected inside the car. Therefore, the device not only has a fire extinguishing function, but also can quickly discharge the smoke in the rail vehicle car.

[0021] The outer walls on both sides of the mounting plate 1 are welded with mounting blocks 10 that are symmetrically distributed front to back. A mounting bolt is threaded through each mounting block 10, and the mounting plate 1 is fixed to the top of the interior of the urban rail vehicle by four mounting bolts.

[0022] The bottom end of the exhaust hood 7 is detachably mounted with a dust filter ring plate 11 of a size adapted thereto, and a dust filter net 12 is fixed on the inside of the dust filter ring plate 11 for intercepting external dust and impurities to prevent large volumes of dust and impurities in the air from entering the exhaust hood 7 and damaging the exhaust fan 8 during the exhaust process. An annular threaded collar 13 is welded and fixed to the outer wall of the dust filter ring plate 11, and an internal thread is provided on the upper part of the inner wall of the threaded collar 13. An external thread adapted to the internal thread of the inner wall of the threaded collar 13 is provided on the lower part of the outer wall of the exhaust hood 7, and the upper part of the threaded collar 13 is threadedly sleeved on the outside of the exhaust hood 7. The dust filter ring plate 11 is fixed to the bottom end of the exhaust hood 7 by screwing the threaded collar 13 onto the exhaust hood 7, so that the dust filter ring plate 11 is easy to disassemble and assemble, so that the dust filter net 12 can be cleaned regularly.

[0023] The rotary docking mechanism includes a water inlet pipe 14 and a threaded screw pipe 15, wherein the water inlet pipe 14 is fixed to the top of the sprinkler head 4 and is connected to the sprinkler head 4, the threaded screw pipe 15 is slidably sleeved on the outside of the water inlet pipe 14, the upper part of the threaded screw pipe 15 is threadedly sleeved on the lower part of the water supply pipe 3, the upper inner wall of the threaded screw pipe 15 is provided with an internal thread, the outer wall of the water supply pipe 3 is provided with an external thread adapted to the internal thread of the inner wall of the threaded screw pipe 15, the outer wall of the water inlet pipe 14 is fixed with a limiting convex ring 16, the threaded screw pipe 15 is provided ... The inner wall is provided with a limiting groove 17 adapted to the limiting convex ring 16, and the limiting convex ring 16 extends into the limiting groove 17. By screwing the threaded screw tube 15 onto the water supply pipe 3 and continuously rotating it upward, the water inlet pipe 14 is driven to move upward and tightly contact the water supply pipe 3 under the cooperation of the limiting groove 17 and the limiting convex ring 16, thereby achieving fixed docking between the two. Then, the threaded screw tube 15 is unscrewed from the water supply pipe 3, and the water inlet pipe 14 can be separated from the water supply pipe 3, making it easy to disassemble and assemble the sprinkler head 4.

[0024] A rubber sealing ring 18 with a convex cross-section is fixed to the top of the water inlet pipe 14, and a sealing groove 19 adapted to the rubber sealing ring 18 is opened at the bottom of the water supply pipe 3. When the water inlet pipe 14 and the water supply pipe 3 are docked, the rubber sealing ring 18 is embedded in the sealing groove 19 to achieve sealed docking.

[0025] During the actual use of the urban rail vehicle fire extinguishing and smoke exhaust device, the mounting plate 1 is fixed to the top of the interior of the urban rail vehicle compartment by the mounting bolts on both sides thereof. The flame detector 5 and the smoke sensor 9 are first turned on to perform flame detection and smoke detection inside the compartment. When the flame detector 5 detects a fire inside the compartment, the water pump 2 is started by the PLC control system of the device, and the water inside the water tank is pumped out by the water pump 2 and injected into the sprinkler head 4 through the water supply pipe 3. The sprinkler head 4 then automatically sprays to extinguish the fire. When the smoke sensor 9 detects smoke inside the compartment, the exhaust fan 8 in the exhaust hood 7 is started by the PLC control system of the device, so that suction is generated inside the exhaust hood 7, and the smoke inside the compartment is sucked in and discharged to the outside through the exhaust pipe 6.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A fire extinguishing and smoke exhaust device for an urban rail vehicle, comprising a mounting plate (1), characterized in that: A water pump (2) is fixed at the center of the top of the mounting plate (1); a water supply pipe (3) is fixed to the output end of the water pump (2) and extends to the bottom of the mounting plate (1); a sprinkler head (4) is fixed to the bottom of the water supply pipe (3) via a rotating docking mechanism; a flame detector (5) electrically connected to the water pump (2) is fixed to the bottom of the mounting plate (1); smoke exhaust pipes (6) are fixed at the four corners of the top of the mounting plate (1); the bottom of the smoke exhaust pipe (6) extends to the bottom of the mounting plate (1) and is fixed to a smoke exhaust hood (7); an exhaust fan (8) is fixed inside the exhaust hood (7); a smoke sensor (9) electrically connected to the exhaust fan (8) is fixed to the side of the bottom of the mounting plate (1) away from the flame detector (5).

2. The fire extinguishing and smoke exhaust device for urban rail vehicles according to claim 1, characterized in that: Mounting blocks (10) are symmetrically fixed to the outer walls on both sides of the mounting plate (1), mounting bolts are threaded through the mounting blocks (10), and the mounting plate (1) is fixed to the top end of the interior of the urban rail vehicle compartment via the mounting bolts on the mounting blocks (10).

3. The fire extinguishing and smoke exhaust device for urban rail vehicles according to claim 1, characterized in that: The top of the smoke exhaust hood (7) is fixedly connected to the smoke exhaust pipe (6) via a sealing flange, and a dust filter ring plate (11) is detachably mounted on the bottom of the smoke exhaust hood (7), and a dust filter net (12) is fixed inside the dust filter ring plate (11).

4. The fire extinguishing and smoke exhaust device for urban rail vehicles according to claim 3, characterized in that: The outer wall of the dust filter ring plate (11) is fixedly sleeved with a threaded collar (13), the upper portion of the threaded collar (13) is threadedly sleeved with the outside of the smoke exhaust hood (7), and the outer wall of the smoke exhaust hood (7) is provided with an external thread that matches the internal thread of the threaded collar (13).

5. The fire extinguishing and smoke exhaust device for urban rail vehicles according to claim 1, characterized in that: The rotary docking mechanism comprises a water inlet pipe (14) fixed to the top of the sprinkler head (4) and a threaded screw pipe (15) slidably sleeved on the outside of the water inlet pipe (14); the threaded screw pipe (15) is threadedly sleeved on the water supply pipe (3); and the outer wall of the water supply pipe (3) is provided with an external thread that matches the internal thread of the threaded screw pipe (15).

6. The fire extinguishing and smoke exhaust device for urban rail vehicles according to claim 5, characterized in that: A limiting convex ring (16) is fixed on the outer wall of the water inlet pipe (14), and a limiting groove (17) adapted to the limiting convex ring (16) is opened on the inner wall of the threaded rotating pipe (15), and the limiting convex ring (16) extends into the limiting groove (17).

7. The fire extinguishing and smoke exhaust device for urban rail vehicles according to claim 5, characterized in that: A rubber sealing ring (18) is fixed to the top of the water inlet pipe (14), and the cross section of the rubber sealing ring (18) is designed to be convex. A sealing groove (19) adapted to the rubber sealing ring (18) is provided at the bottom of the water supply pipe (3).

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