Fire extinguishing device for electric vehicle

Abstract

The utility model discloses a fire extinguishing device for an electric vehicle, which comprises a fire extinguishing assembly and an isolating assembly, and is characterized in that the fire extinguishing assembly comprises a U-shaped traction pipe, a movable pipe detachably connected with the tail end of the U-shaped traction pipe, and universal wheels symmetrically mounted at the lower ends of the U-shaped traction pipe and the movable pipe; the bottom pipes are arranged on the inner side of the U-shaped traction pipe and the inner side of the moving pipe at equal intervals, and the nozzles are arranged at the upper ends of the bottom pipes at equal intervals. The isolation assembly comprises conveying pipes arranged on the upper side of the side end of the U-shaped traction pipe at equal intervals, a plurality of sets of isolation pipes symmetrically arranged on the two sides of the conveying pipes, and a plurality of spray heads fixedly installed on the inner sides of the isolation pipes. The device is suitable for vehicle bodies with different lengths; the device can be pushed into the vehicle bottom within a certain distance; when fire extinguishing is carried out on the chassis of the electric vehicle, damage to fire extinguishers caused by heat waves generated by the fire extinguishers when the fire extinguishers get close to the fire extinguishers can be avoided, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing systems, in particular to a fire extinguishing device for electric vehicles. Background Art

[0002] Since the bodies of electric vehicles are mostly made of combustible materials, once a fire breaks out, it burns quickly and produces a large amount of toxic smoke, which can easily cause casualties. In order to ensure the charging safety of electric vehicles and to be able to promptly report a fire in the early stages to avoid greater losses, the batteries of electric vehicles need to be protected. The main reason for the spontaneous combustion of electric vehicles is the improper operation of electric vehicles, which can cause battery short circuits, leakage of electrolytic cells, and increased circuit resistance. Spontaneous combustion may occur during charging or driving, leading to fire accidents.

[0003] In the prior art, when an electric vehicle catches fire, people will use handheld fire extinguishers and direct water spraying to put out the fire. However, since electric vehicles are generally caused by the battery located at the bottom of the vehicle body, the fire usually starts from the bottom of the vehicle. People are unable to quickly extinguish the spontaneous combustion point at the bottom of the electric vehicle, and the fire extinguishing efficiency is low. At the same time, the existing fire extinguishers are often burned by the high temperature generated by the open flame when approaching the fire extinguishing point, and most of the existing devices are integrated structures, which are difficult to apply when facing fires on vehicles of different lengths.

[0004] The existing Chinese patent authorization announcement number CN220735989U discloses a "new energy vehicle chassis fire extinguishing device, including multiple groups of water spray parts and connecting parts, wherein two adjacent water spray parts are connected through connecting parts, and the front end face of the water delivery part located at the front end is provided with an external joint. In the utility model, the fire of the new energy vehicle chassis is extinguished through the mutual cooperation of the water spray part and the connecting part"; however, during the process of placing the device under the vehicle, the user needs to be very close to the burning vehicle to place the device under the vehicle body. In this process, it is easy to be burned by the high-temperature air waves generated by the burning vehicle body, and the safety of use is poor. At the same time, the burning vehicle body may also explode. If the user is too close to the vehicle body, there is a high threat to the user's own safety.

[0005] Therefore, in order to solve the above technical problems, the utility model provides a tram fire extinguishing device. Utility Model Content

[0006] The purpose of the utility model is to provide a tram fire extinguishing device which is applicable to vehicles of different lengths, can extinguish fire on the chassis of a tram, and can prevent the firefighters from being burned by the heat wave generated by the burning vehicle body when they approach the burning vehicle body. At the same time, the device can be pushed under the vehicle at a certain distance to prevent the explosion or sudden deflagration of the vehicle body during the placement of the device, thereby preventing the firefighters who are close to the burning vehicle from being injured; and to improve the safety of use.

[0007] In order to achieve the above technical effects, the utility model is implemented through the following technical solutions: a tram fire extinguishing device, including a fire extinguishing assembly and an isolation assembly, characterized in that: the fire extinguishing assembly includes a "U-shaped" pulling tube, a movable tube connected to the end of the "U-shaped" pulling tube, a universal wheel symmetrically installed on the lower ends of the "U-shaped" pulling tube and the movable tube, a plurality of bottom tubes equidistantly arranged on the inner side of the "U-shaped" pulling tube and the inner side of the movable tube, and a plurality of nozzles equidistantly arranged on the upper end of the bottom tube; the isolation assembly includes a conveying pipe equidistantly arranged on the upper side of the side end of the "U-shaped" pulling tube, a plurality of groups of isolation pipes symmetrically arranged on both sides of the conveying pipe, and a plurality of nozzles fixedly installed on the inner side of the isolation pipe.

[0008] Furthermore, the "U-shaped" pulling tube also includes an input joint arranged in the middle of the "U-shaped" pulling tube, a push-pull tube threadedly connected to the input joint, an external joint arranged at the free end of the push-pull tube, and an assembly joint fixedly installed at both ends of the "U-shaped" pulling tube; one end of the movable tube is rotatably connected to a connector adapted to the assembly joint, and the other end is provided with an assembly joint.

[0009] Furthermore, the input connector and the "U-shaped" pulling tube form an angle of 25 to 45 degrees; after assembly, the assembly connector at the end of the farthest moving tube is threadedly connected with a sealing cover.

[0010] Furthermore, the outer walls of the input joint and the assembly joint are both provided with external threads, and the bottom ends of the input joint, the sealing cover and the assembly joint are all provided with sealing rings; the inner wall of the bottom end of the push-pull tube is provided with an internal thread that matches the external thread of the input joint; the inner walls of the connecting head and the sealing cover are both provided with internal threads that match the external thread of the assembly joint.

[0011] Furthermore, the push-pull pipe, "U-shaped" pulling pipe, movable pipe, conveying pipe, isolation pipe and bottom pipe are all made of hollow hard water pipes.

[0012] Furthermore, the push-pull pipe, "U-shaped" pulling pipe, movable pipe and bottom pipe are interconnected in sequence; the push-pull pipe, "U-shaped" pulling pipe, conveying pipe and isolation pipe are interconnected in sequence; the nozzles on the bottom pipe and isolation pipe are respectively connected to the bottom pipe and isolation pipe.

[0013] Furthermore, a connecting block is provided in the middle of the conveying pipe, a connecting groove is provided in the middle of the connecting block, a connecting plate is detachably installed on the connecting groove; a clamping block adapted to the connecting groove is provided on the connecting plate; the connecting plate connects at least two conveying pipes.

[0014] The beneficial effects of the utility model are:

[0015] The utility model reduces the space occupied by transfer by arranging the fire extinguishing component and the isolation component into a detachable and assembled structure, facilitates the carrying of the device and improves the practicality of the device; by arranging a push-pull pipe, during the fire extinguishing process, the user can stay away from the fire point and operate the device at a certain distance, thereby improving the safety of the device; by arranging the "U-shaped" pulling pipe and the mobile pipe into an assemblable independent module, it is possible to extinguish the fire of electric vehicles of different lengths by assembling different numbers of mobile pipes, so that the device can adapt to the fire of electric vehicles of different lengths, and the fire extinguishing is more comprehensive compared with the fire extinguishing method in the prior art; at the same time, by arranging the isolation component, a water mist wall is sprayed out through the nozzle on the isolation pipe, so as to form a certain cooling area between the burning car body and the fire extinguishing personnel, so as to avoid the high-temperature air wave generated by the burning car body from directly causing damage to the fire extinguishing personnel, thereby improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a front view of the utility model;

[0019] Figure 3 It is a side view of the utility model;

[0020] Figure 4 It is a top view of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the utility model when the connecting plate is not installed;

[0022] Figure 6 This is a schematic diagram of the overall structure of the "U-shaped" pulling tube of the utility model;

[0023] Figure 7 This is a schematic diagram of the overall structure of the mobile tube of the utility model;

[0024] Figure 8 It is a structural schematic diagram of the connecting plate of the utility model.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Fire extinguishing assembly; 11. "U-shaped" pulling pipe; 12. Moving pipe; 121. Connecting head; 13. Universal wheel; 14. Bottom pipe; 15. Sprinkler; 16. Input joint; 17. Push-pull pipe; 18. External joint; 19. Assembly joint; 191. Sealing cover; 2. Isolation assembly; 21. Delivery pipe; 22. Isolation pipe; 23. Connecting block; 24. Connecting groove; 25. Connecting plate; 26. Block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] See also Figures 1 to 8 As shown, a tram fire extinguishing device includes a fire extinguishing component 1 and an isolation component 2, characterized in that: the fire extinguishing component 1 includes a "U-shaped" pulling tube 11, a movable tube 12 detachably connected to the end of the "U-shaped" pulling tube 11, a universal wheel 13 symmetrically installed at the lower ends of the "U-shaped" pulling tube 11 and the movable tube 12, a plurality of bottom tubes 14 equidistantly arranged on the inner side of the "U-shaped" pulling tube 11 and the inner side of the movable tube 12, and a plurality of nozzles 15 equidistantly arranged on the upper end of the bottom tube 14; the isolation component 2 includes a delivery pipe 21 equidistantly arranged on the upper side of the side end of the "U-shaped" pulling tube 11, a plurality of isolation pipes 22 symmetrically arranged on both sides of the delivery pipe 21, and a plurality of nozzles 15 fixedly installed on the inner side of the isolation pipe 22.

[0030] The U-shaped pulling tube 11 also includes an input connector 16 arranged in the middle of the U-shaped pulling tube 11, a push-pull tube 17 threadedly connected to the input connector 14, and an external connector 18 arranged at the free end of the push-pull tube 17; by connecting the external fire hose to the external connector 18 at the free end of the push-pull tube 17, the device can be passed through water to ensure that the water in the fire hose flows into the pulling tube 11; when in use, the user pushes and pulls the pulling tube 11 at the far end, and controls the position of the device under the action of the universal wheel 13; the assembly connectors 19 are fixedly installed at both ends of the U-shaped pulling tube 11; one end of the mobile tube 12 is rotatably connected to a connector 121 adapted to the assembly connector 19, and the other end is provided with an assembly connector 19. It can realize the rapid assembly of the U-shaped pulling tube 11 and the mobile tube 12, and at the same time, it can select a suitable number of mobile tubes 12 to be connected to each other according to the length of the electric vehicle on fire, so that the device can completely cover the chassis of the vehicle body after spraying water, and realize the fire extinguishing of electric vehicles of different lengths after they catch fire.

[0031] The input connector 16 and the "U-shaped" pulling tube 11 are at an angle of 25 to 45 degrees; after the "U-shaped" pulling tube 11 and the moving tube 12 are assembled, the assembly connector 19 at the farthest end of the moving tube 12 is threadedly connected with a sealing cap 191. After the push-pull tube 17 is installed on the "U-shaped" pulling tube 11, it is at a certain angle, so that it is raised away from the input connector 16, which is convenient for users to push and pull. During use, there is no need to bend over for a long time, which is more labor-saving and practical; the far-end sealing cap 191 blocks the end of the moving tube 12 to prevent the transported water from flowing out of the end.

[0032] The outer walls of the input connector 16 and the assembly connector 19 are both provided with external threads, and the bottom ends of the input connector 16, the sealing cover 191 and the assembly connector 19 are all provided with sealing rings; the inner wall of the bottom end of the push-pull tube 17 is provided with internal threads that match the external threads of the input connector 16; the inner walls of the connector 121 and the sealing cover 191 are both provided with internal threads that match the external threads of the assembly connector. The input connector 16 and the push-pull tube 17 can be quickly assembled, and the assembly connector 19 and the connector 121 can be quickly assembled at the same time; the provided sealing ring can prevent water leakage at the connection after assembly is completed, and ensure sealing.

[0033] The push-pull pipe 17, "U-shaped" pulling pipe 11, moving pipe 12, delivery pipe 21, isolation pipe 22 and bottom pipe 14 are all made of hollow hard water pipes, ensuring that the device is not easily deformed when subjected to external forces, while satisfying the stability of the device itself after assembly.

[0034] The push-pull pipe 17, the U-shaped pulling pipe 11, the moving pipe 12 and the bottom pipe 14 are interconnected in sequence; the push-pull pipe 17, the U-shaped pulling pipe 11, the delivery pipe 21 and the isolation pipe 22 are interconnected in sequence; the nozzles 15 on the bottom pipe 14 and the isolation pipe 22 are respectively connected to the bottom pipe 14 and the isolation pipe 22. Ensure that each pipeline is connected in sequence to allow water to flow smoothly; when in use, the water connected to the fire hose by the external joint 18 is transported to each pipeline, and the water is sprayed out by the nozzles 15 installed in the isolation pipe 22 and the bottom pipe 14 to achieve a fire extinguishing effect.

[0035] A connection block 23 is provided in the middle of the delivery pipe 21, a connection groove 24 is provided in the middle of the connection block 23, a connection plate 25 is detachably mounted on the connection groove 24, a block 26 adapted to the connection groove 24 is provided on the connection plate 25, and the connection plate 25 connects at least two delivery pipes 21. After assembling multiple mobile pipes 12, the delivery pipes 21 installed on the upper ends of the mobile pipes 12 are connected to each other, so that each delivery pipe 21 pulls and supports each other, thereby improving the stability of the entire device and ensuring the use requirements.

[0036] Example 2

[0037] The nozzle 15 of the utility model adopts the existing atomizing nozzle to expand the fire extinguishing range and ensure that the electric vehicle body can be fully covered during spraying, thereby achieving a better fire extinguishing effect.

[0038] The push-pull pipe 17, "U-shaped" pulling pipe 11, moving pipe 12, delivery pipe 21, isolation pipe 22 and bottom pipe 14 of the utility model are all made of high-temperature resistant hollow hard water pipes, such as stainless steel pipes, high-temperature resistant plastic pipes, etc.

[0039] The input connector 16, assembly connector 19, push-pull tube 17 end structure, and connector 121 of the utility model all adopt existing pipe connector structures and are connected in the form of threaded connection to achieve portable installation and quick disassembly; at the same time, the sealing ring is made of rubber material and can be deformed by extrusion to ensure that no leakage occurs after the input connector 16 is connected to the push-pull tube 17 and the assembly connector 19 is connected to the connector 121.

[0040] The end of the push-pull tube 17 of the utility model is rotatably mounted with a connector that is compatible with the input connector 16, and a sealing pad is provided at the end of the connector to ensure the sealing performance after being untied.

[0041] Example 3

[0042] Working principle: When an electric vehicle catches fire unexpectedly or catches fire under other circumstances, first assemble the "U-shaped" pulling tube 11 and the mobile tube 12 together through the assembly joint 17 and the connector 18, and select the appropriate number of mobile tubes 12 according to the length of the electric vehicle on fire for mutual assembly. After the assembly is completed, the push-pull tube 15 is rotated and connected to the input joint 14 to complete the assembly of the entire device; at this time, the external fire hose is connected to the external joint at the free end of the push-pull tube 15 to realize water supply to the device, and then The user then holds the far end of the push-pull tube 15, and with the help of the universal wheel 13, moves the device to the bottom of the chassis of the burning electric vehicle while the user is away from the burning electric vehicle, and then opens the external fire hose to spray water from the outside through the push-pull tube 17 → "U-shaped" pulling tube 11 → bottom tube 14 → nozzle 15; push-pull tube 17 → "U-shaped" pulling tube 11 → moving tube 12 → bottom tube 14 → nozzle 15, and uses the high-pressure water flow and water mist generated by the nozzle 15 to extinguish the burning electric vehicle on the chassis of the vehicle;

[0043] Through the form of push-pull tube 17 → "U-shaped" pulling tube 11 → moving tube 12 → conveying tube 21 → isolation tube 22 → nozzle 15, the high-pressure water flow and water mist sprayed by the nozzle 15 form an isolation and cooling wall between the burning car body and the fire-fighting personnel, so as to prevent the high-temperature air waves generated by the burning car body from directly damaging the fire-fighting personnel and improve the safety of use; when the fire is extinguished, close the external fire-fighting pipe, move the device out, and after the device is cooled, disassemble the assembled "U-shaped" pulling tube 11, moving tube 12 and pulling tube 17 into independent "U-shaped" pulling tube 11, moving tube 12 and pulling tube 15 and re-store them.

Claims

1. A fire extinguishing device for a tram, comprising a fire extinguishing component and an isolation component, characterized in that: The fire extinguishing assembly includes a "U-shaped" pulling pipe, a movable pipe connected to the end of the "U-shaped" pulling pipe, a universal wheel symmetrically installed at the lower ends of the "U-shaped" pulling pipe and the movable pipe, a plurality of bottom pipes equidistantly arranged on the inner side of the "U-shaped" pulling pipe and the inner side of the movable pipe, and a plurality of nozzles equidistantly arranged on the upper end of the bottom pipe; the isolation assembly includes a delivery pipe equidistantly arranged on the upper side of the side end of the "U-shaped" pulling pipe, a plurality of isolation pipes symmetrically arranged on both sides of the delivery pipe, and a plurality of nozzles fixedly installed on the inner side of the isolation pipe; The "U-shaped" pulling tube also includes an input joint arranged in the middle of the "U-shaped" pulling tube, a push-pull tube threadedly connected to the input joint, an external joint arranged at the free end of the push-pull tube, and assembly joints fixedly installed at both ends of the "U-shaped" pulling tube; one end of the moving tube is rotatably connected to a connector adapted to the assembly joint, and the other end is provided with an assembly joint.

2. A fire extinguishing device for electric vehicles according to claim 1, characterized in that: The input joint and the "U-shaped" pulling tube form an angle of 25 to 45 degrees; after assembly, the assembly joint at the end of the farthest moving tube is threadedly connected with a sealing cover.

3. A fire extinguishing device for electric vehicles according to claim 1, characterized in that: The outer walls of the input joint and the assembly joint are both provided with external threads, and the bottom ends of the input joint, the sealing cover and the assembly joint are all provided with sealing rings; the inner wall of the bottom end of the push-pull tube is provided with an internal thread that matches the external thread of the input joint; the inner walls of the connecting head and the sealing cover are both provided with an internal thread that matches the external thread of the assembly joint.

4. A fire extinguishing device for electric vehicles according to claim 1, characterized in that: The push-pull pipe, "U-shaped" pulling pipe, movable pipe, conveying pipe, isolation pipe and bottom pipe are all made of hollow hard water pipes.

5. A fire extinguishing device for electric vehicles according to claim 1, characterized in that: The push-pull pipe, "U-shaped" pulling pipe, movable pipe and bottom pipe are interconnected in sequence; the push-pull pipe, "U-shaped" pulling pipe, conveying pipe and isolation pipe are interconnected in sequence; the nozzles on the bottom pipe and isolation pipe are respectively connected to the bottom pipe and isolation pipe.

6. A fire extinguishing device for electric vehicles according to claim 1, characterized in that: A connecting block is arranged in the middle of the conveying pipe, a connecting groove is arranged in the middle of the connecting block, a connecting plate is detachably mounted on the connecting groove; a clamping block matching the connecting groove is arranged on the connecting plate; the connecting plate connects at least two conveying pipes.

Images