Movable type electric automobile fire extinguishing treatment device and control method

Abstract

The invention discloses a movable electric automobile fire extinguishing treatment device which comprises a self-walking module, a water spraying module, a control system and a collecting module. The water spraying module comprises a main water supply pipeline, a plurality of telescopic pipelines, a main nozzle and a branch pipeline, the main water supply pipeline is integrated on the control system, one end of the main water supply pipeline is connected with the telescopic pipelines, one end of each telescopic pipeline is connected with the main nozzle, and at least one telescopic pipeline is further connected with the branch pipeline capable of rotating; the tail ends of the branch pipelines are connected with branch nozzles; the acquisition module is connected to one or more of the self-walking module, the water spraying module and the control system; and the control system is in communication connection with the self-walking module, the telescopic pipeline, the branch pipeline and the acquisition module. The invention further discloses a control method of the movable electric vehicle fire extinguishing disposal device. The fire extinguishing device has the beneficial effects that different vehicle sizes are covered, different fire situations are adapted, and the problem that a traditional fire extinguishing device is poor in effect in electric vehicle fire is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle fire extinguishing, and in particular to a mobile electric vehicle fire extinguishing device and a control method. Background Art

[0002] As an important representative of new energy vehicles, electric vehicles have significant advantages in environmental protection and energy conservation, and have received widespread attention and support from various countries. The state and governments at all levels have introduced policy plans to promote the popularization and development of new energy vehicles. Compared with traditional car fires, electric vehicles have the characteristics of high battery energy and high voltage, and firefighting, rescue and emergency disposal are more complicated. Specifically, electric vehicle fire accidents are characterized by strong suddenness, rapid fire spread, high flame temperature, long fire extinguishing time, high water consumption, easy re-ignition, and continuous release of flammable and toxic gases; there are also risks of electric shock, explosion, poisoning, corrosion and burns during fire fighting. The body structure and energy system of electric vehicles are quite different from those of traditional vehicles, and traditional firefighting and rescue technical equipment are not very applicable to electric vehicle fires.

[0003] Therefore, there is an urgent need to develop specialized and efficient rescue technology and equipment suitable for electric vehicle fires to ensure that rescue operations can be carried out quickly and effectively when a fire accident occurs.

[0004] The fire extinguishing devices in the prior art, such as CN221286703U - a mobile internal fire extinguishing device for an electric vehicle battery pack, cannot adapt to different sizes or cannot cover the entire vehicle, resulting in poor fire extinguishing effect and adaptability.

[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art known to a person skilled in the art. Summary of the invention

[0006] The technical problem to be solved by the present invention is: how to solve the problem that the current traditional fire rescue technical equipment cannot achieve rapid and effective rescue for fire extinguishing and rescue and emergency treatment of electric vehicles.

[0007] The present invention solves the above technical problems through the following technical means:

[0008] A mobile electric vehicle fire extinguishing device comprises a self-propelled module, a water spray module, a control system and a collection module; the water spray module comprises a main water supply pipe, a plurality of retractable pipes, a main nozzle and a branch pipe, the main water supply pipe is integrated in the control system, one end of the main water supply pipe is respectively connected to the retractable pipes, one end of the retractable pipe is connected to the main nozzle, at least one retractable pipe is also connected to a rotatable branch pipe, and the end of the branch pipe is connected to the branch nozzle; the collection module is connected to one or more of the self-propelled module, the water spray module and the control system; the control system is communicatively connected to the self-propelled module, the retractable pipe, the branch pipe and the collection module.

[0009] The mobile electric vehicle fire extinguishing device of the present invention can realize self-propelling of the fire extinguishing device through a self-propelling module near the burning electric vehicle, without the need for human pushing, thus ensuring the safety of the fire extinguishing personnel. Through multiple retractable pipes, it can adapt to vehicles of different sizes, fully cover the burning electric vehicle power battery box, and at the same time reduce the space required for the device; through multiple adjustable branch pipes, the branch nozzles at the end of the branch pipes can be positioned at different positions of the vehicle chassis to ensure that the fire extinguishing covers the entire power battery box area under the vehicle; the fire extinguishing device transports water to each main nozzle and branch nozzle, and the high-pressure water mist sprayed can quickly reduce the fire temperature and suppress the spread of the fire, solving the problem that traditional fire extinguishing devices are not effective in electric vehicle fires.

[0010] Preferably, the water spray module further comprises a pump system, the pump system is integrated in the control system, and the control system is communicatively connected with the pump system.

[0011] According to the temperature distribution data, the fire size information is identified; according to the coordinate information of the fire source and the fire size information, the second servo motor is controlled to adjust the spray angle and direction of the branch nozzle, as well as the output pressure of the pump system of the water spray module and the atomization device inside the nozzle.

[0012] Preferably, the retractable pipe includes a first retractable pipe and a second retractable pipe, one end of the main water supply pipe is a water inlet, and the other end is divided into three paths, which are respectively connected to the first retractable pipe and the second retractable pipe through elbows, the first retractable pipe is located at the bottom of the electric vehicle, and the second retractable pipes on both sides correspond to the two sides of the electric vehicle.

[0013] The first retractable pipe and the second retractable pipe correspond to the bottom and both sides of the vehicle respectively, so as to realize efficient fire extinguishing of the chassis of the electric vehicle and its surrounding areas.

[0014] Preferably, the retractable pipe includes a fixed pipe section, a retractable pipe section, a fixed bracket, and a first driving mechanism, one end of the fixed pipe section is connected to and communicates with the main water supply pipe, the other end of the fixed pipe section is inserted into the retractable pipe section, the fixed bracket is fixedly connected to the fixed pipe section, the fixed end of the first driving mechanism is connected to the fixed bracket, and the retractable end of the first driving mechanism is connected to the retractable pipe section.

[0015] According to the size of the electric vehicle, the lengths of the first retractable pipe and the second retractable pipe are adjusted so that the main nozzle can cover the chassis and side areas of the vehicle.

[0016] Preferably, the first driving mechanism comprises a first servo motor, a ball screw, a connecting piece, a screw nut, and a screw support seat;

[0017] The first servo motor is fixedly connected to the fixed bracket, the two screw support seats are connected to the fixed bracket at intervals, the two ends of the ball screw are connected to the screw support seats, the end of the ball screw is connected to the first servo motor, the screw nut is threadedly connected to the ball screw, the screw nut is connected to the connecting piece, and the connecting piece is fixedly connected to the telescopic pipe section;

[0018] The control system is in communication connection with the first servo motor.

[0019] Preferably, the first telescopic pipe is axially connected to a plurality of branch pipes.

[0020] Preferably, the branch pipe includes a branch pipe, a second servo motor, and an L-shaped connecting piece. The first telescopic pipe extends radially upward to form a connecting pipe. The branch pipe is rotatably connected to the connecting pipe. The top of the connecting pipe is closed. The second servo motor is connected to the top of the connecting pipe. The output end of the second servo motor is connected to one end of the L-shaped connecting piece, and the other end of the L-shaped connecting piece is fixedly connected to the outside of the branch pipe.

[0021] The system information is controlled to adjust the second servo motor to adjust the spray angle, direction and water mist intensity of the branch nozzle 26 to ensure that the fire extinguishing water mist can fully contact the fire source, quickly control the fire and reduce the temperature. The nozzles under the vehicle and on both sides work synchronously to form a comprehensive coverage to ensure the isolation and disposal effect of the vehicle to prevent it from spreading to other vehicles or combustibles.

[0022] Preferably, the acquisition module includes a laser radar, a camera, a thermal imaging camera, and an infrared imager, and the laser radar, the camera, the thermal imaging camera, and the infrared imager are installed on the self-propelled module and / or the water spray module.

[0023] The present invention also discloses a control method for a mobile electric vehicle fire extinguishing device, which is characterized in that the mobile electric vehicle fire extinguishing device is used, and the method comprises the following steps:

[0024] Step S1: In response to receiving a remote command or a preset route from a remote control terminal, driving the self-propelled module to travel to a position near a vehicle to be extinguished;

[0025] Step S2: Obtaining the coordinate information of the fire source and the size information of the fire-fighting vehicle through the acquisition module;

[0026] Step S3: Based on the coordinate information of the fire source and the size information of the vehicle to be extinguished, adjusting the position of the mobile electric vehicle fire extinguishing device, the direction of the water spray module, the extension amount of the multiple retractable pipes and the direction of the branch pipes;

[0027] Step S4: Turn on the main nozzle and branch nozzles, and obtain the temperature distribution data of the target area in real time through the acquisition device, identify the fire size information based on the temperature distribution data, and adjust the spray angle and direction of the branch nozzle according to the coordinate information of the fire source and the fire size information.

[0028] Preferably, the water spray module further comprises a pump system, the pump system is integrated in the control system, and the control system is communicatively connected with the pump system;

[0029] In step S4, the fire size information is identified according to the temperature distribution data, and the spray angle and direction of the branch nozzle is adjusted according to the coordinate information of the fire source and the fire size information, and the output pressure of the pump system and the atomization device inside the main nozzle and the branch nozzle are adjusted;

[0030] Step S5: After the fire is under control, the remote control end stops spraying the main nozzle and the branch nozzle through the control system. At the same time, it controls the extended part of the retractable pipe to gradually retract to the initial position and controls the self-propelled module to evacuate the scene.

[0031] The advantages of the present invention are:

[0032] The mobile electric vehicle fire extinguishing device of the present invention can realize self-propelling of the fire extinguishing device through a self-propelling module near the burning electric vehicle, without the need for human pushing, thus ensuring the safety of the fire extinguishing personnel. Through multiple retractable pipes, it can adapt to vehicles of different sizes, fully cover the burning electric vehicle power battery box, and at the same time reduce the space required for the device; through multiple adjustable branch pipes, the branch nozzles at the end of the branch pipes can be positioned at different positions of the vehicle chassis to ensure that the fire extinguishing covers the entire power battery box area under the vehicle; the fire extinguishing device transports water to each main nozzle and branch nozzle, and the high-pressure water mist sprayed can quickly reduce the fire temperature and suppress the spread of the fire, solving the problem that traditional fire extinguishing devices are not effective in electric vehicle fires.

[0033] According to the temperature distribution data, the fire size information is identified; according to the coordinate information of the fire source and the fire size information, the second servo motor is controlled to adjust the spray angle and direction of the branch nozzle, as well as the output pressure of the pump system of the water spray module and the atomization device inside the nozzle.

[0034] The first retractable pipe and the second retractable pipe correspond to the bottom and both sides of the vehicle respectively. According to the size of the electric vehicle, the length of the first retractable pipe and the second retractable pipe are adjusted so that the main nozzle can cover the chassis and side areas of the vehicle.

[0035] The system information is controlled to adjust the second servo motor to adjust the spray angle, direction and water mist intensity of the branch nozzle 26 to ensure that the fire extinguishing water mist can fully contact the fire source, quickly control the fire and reduce the temperature. The nozzles under the vehicle and on both sides work synchronously to form a comprehensive coverage to ensure the isolation and disposal effect of the vehicle to prevent it from spreading to other vehicles or combustibles. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of a mobile electric vehicle fire extinguishing device according to an embodiment of the present invention;

[0037] Figure 2 It is a structural schematic diagram of a mobile electric vehicle fire extinguishing device according to an embodiment of the present invention;

[0038] Figure 3 is a side view of a mobile electric vehicle fire extinguishing device according to an embodiment of the present invention;

[0039] Figure 4 yes Figure 1 Enlarged view of point A in the middle;

[0040] Figure 5 yes Figure 2 Enlarged view of point B in the middle;

[0041] Figure 6This is a flow chart of a control method of a mobile electric vehicle fire extinguishing device according to an embodiment of the present invention;

[0042] Numbers in the figure:

[0043] 1. Self-propelled module;

[0044] 2. Water spray module; 21. Main water supply pipeline; 22. First telescopic pipeline; 23. Second telescopic pipeline; 231. Fixed pipe section; 232. Telescopic pipe section; 233. Fixed bracket; 234. First servo motor; 235. Ball screw; 236. Connector; 237. Screw nut; 238. Screw support seat; 24. Main nozzle; 25. Branch pipeline; 251. Branch pipe; 252. Second servo motor; 253. L-shaped connector; 26. Branch nozzle;

[0045] 3. Control system. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] Embodiment 1:

[0048] like Figure 1 As shown, the mobile electric vehicle fire extinguishing device includes a self-propelled module 1, a water spraying module 2, a control system 3 and a collection module. The control system 3 is connected to the self-propelled module 1, one end of the water spraying module 2 is integrated on the control system 3, and the other end extends to one side of the self-propelled module 1 and is used for spraying water. The collection module is installed on the water spraying module 2 or the control system 3, and is used to collect various images, positioning, length information, etc. when a fire occurs. The control system 3 includes a wireless communication module, which is used to communicate with a remote control terminal.

[0049] In this embodiment, the self-propelled module 1 includes a device chassis, four electric drive wheels and an omnidirectional rotating steering mechanism. The four electric drive wheels are mounted on the device chassis, and the four electric drive wheels are driven by four motors respectively. The control system 2 realizes speed regulation and power distribution of the four electric drive wheels by differentially controlling the four motors; the control system 2 is connected to the steering mechanism, thereby driving the fire extinguishing disposal device to move on the ground through four independently driven electric drive wheels, so that the fire extinguishing disposal device can be flexibly moved on complex terrain.

[0050] like Figure 2 , Figure 3 As shown, the water spray module 2 includes a pump system, a main water supply pipe 21, at least one first telescopic pipe 22, multiple second telescopic pipes 23, and multiple main nozzles 24; the main water supply pipe 21 passes through the control system 3, the pump system is integrated in the control system 3, and one end of the main water supply pipe 21 is a water inlet 211, which can be connected to an external water supply, such as a fire hydrant, that is, the water source is an external water supply.

[0051] A section of the main water supply pipe 21 is divided into multiple strands. In this embodiment, the main water supply pipe 21 is divided into three strands, which are respectively connected to the first telescopic pipe 22 and the second telescopic pipe 23 through elbows, and the ends of the first telescopic pipe 22 and the second telescopic pipe 23 are connected to the main nozzle 24. Among them, the first telescopic pipe 22 is located between the two second telescopic pipes 23, the first telescopic pipe 22 located in the middle corresponds to the bottom of the electric car, and the second telescopic pipes 23 on both sides correspond to the two sides of the electric car. The main nozzle 24 is an atomizing nozzle. The main nozzle 24 can be fixed or rotatable. The main nozzle 24 on the first telescopic pipe 22 faces the bottom of the car, and the main nozzles 24 of the second telescopic pipes 23 on both sides are arranged relatively.

[0052] The first telescopic pipe 22 further includes a plurality of rotatable branch pipes 25, which are rotatably connected to the first telescopic pipe 22, and the ends of the branch pipes 25 are connected to the branch nozzles 26. In this embodiment, there are four branch pipes 25, which are spaced apart along a non-retractable section of the first telescopic pipe 22.

[0053] The control system 3 can control and adjust the output pressure of the pump system, the atomizing device inside the main nozzle 24, and the servo mechanism of the branch nozzle 26 to adjust the spray angle and direction of the branch nozzle 26. The pump system delivers high-pressure water to the main water supply pipe 21, and then distributes it to the first telescopic pipe 22 and the second telescopic pipe 23, and finally sprays it out from the main nozzle 24 and the branch nozzle 26. The main nozzle 24 and the branch nozzle 26 can spray high-pressure water mist to ensure a wide coverage area and high fire extinguishing efficiency during fire extinguishing.

[0054] like Figure 4 As shown, the telescopic parts of the first telescopic pipe 22 and the second telescopic pipe 23 adopt the same telescopic method, and this embodiment is described with reference to the second telescopic pipe 23.

[0055] The second telescopic pipe 23 includes a fixed pipe section 231, a telescopic pipe section 232, a fixed bracket 233, and a first driving mechanism. In this embodiment, the first driving mechanism includes a first servo motor 234, a ball screw 235, a connector 236, a screw nut 237, and a screw support seat 238. The fixed pipe section 231 is connected to the telescopic pipe section 232 by nesting. The fixed pipe section 231 is fixedly arranged, and the telescopic pipe section 232 can be multiple. The outer diameters of the fixed pipe section 231 and the telescopic pipe section 232 gradually decrease, thereby forming a sequentially sleeved form. In this embodiment, the telescopic pipe section 232 is divided into two sections, and the innermost telescopic pipe section 232 is the longest, and the main nozzle 24 is connected to the end of the longest telescopic pipe section 232. The fixed bracket 233 is a hollow cylindrical structure, one end of the fixed bracket 233 is fixedly connected to the outside of the fixed pipe section 231, and the other end of the fixed bracket 233 is slidably connected to the telescopic pipe section 232. The first servo motor 234 is fixedly connected to the left end of the fixed bracket 233, and the first servo motor 234 is connected to the control system 3; two screw support seats 238 are fixedly connected to the fixed bracket 233, and the two ends of the ball screw 235 are connected to the screw support seat 238 through bearings, and the left end of the ball screw 235 is connected to the output shaft of the first servo motor 234, and the right end of the ball screw 235 is connected to the screw nut 237, and the screw nut 237 is fixedly connected to the connector 236, and the connector 236 is fixedly connected to the innermost telescopic pipe section 232. The first servo motor 234 drives the ball screw 235 to rotate, and the screw nut 237 moves along the length direction of the ball screw 235, thereby controlling the movement of the telescopic pipe section 232 to achieve pipe expansion and contraction. This embodiment can adjust the pipe lengths of the first telescopic pipe 22 and the second telescopic pipe 23, thereby ensuring that the fire extinguishing device can cover the chassis of the electric vehicle and its surrounding areas, thereby increasing the flexibility of the fire extinguishing device.

[0056] At the same time, an anti-slip device is provided between the fixed pipe section 231 and the telescopic pipe section 232 to prevent the telescopic pipe section 232 from sliding out of the fixed pipe section 231. For example, the end of the fixed pipe section 231 is bent inwardly and the telescopic pipe section 232 is bent outwardly. However, when the fixed pipe section 231 and the telescopic pipe section 232 are extended to the limit position, the two bends can be stuck to prevent the telescopic pipe section 232 from sliding out.

[0057] At the same time, since the telescopic pipe is used to transport fire water, some anti-leakage settings are required, such as setting a sealing ring between the fixed pipe section 231 and the telescopic pipe section 232, but it is necessary to ensure that the telescopic pipe section 232 can be slidably connected to the fixed pipe section 231.

[0058] like Figure 5As shown, the branch pipe 25 includes a branch pipe 251, a second servo motor 252, and an L-shaped connector 253. The first telescopic pipe 22 extends a connecting pipe upward in the vertical direction. The branch pipe 251 is rotatably connected to the connecting pipe and communicates with the connecting pipe. For example, the branch pipe 251 and the connecting pipe are connected by threads. The top of the connecting pipe is closed, and the top of the connecting pipe is connected to the second servo motor 252. The output end of the second servo motor 252 is connected to one end of the L-shaped connector 253, and the other end of the L-shaped connector 253 is fixedly connected to the branch pipe 251. The second servo motor 252 is connected to the control system 3, so that the control system 3 can control the second servo motor 252.

[0059] In this embodiment, there are four branch pipes 25, and more branch pipes can be provided as needed, preferably evenly distributed.

[0060] Thus, the second servo motor 252 receives instructions from the control system 3, and controls the branch pipe 25 to rotate relative to the first telescopic pipe 22 through the L-shaped connector 253; the second servo motor 252 drives the L-shaped connector 253 to adjust the angle of the branch pipe 25, so that the branch nozzle 26 at the end of the branch pipe 25 can be positioned at different positions of the vehicle chassis, ensuring that the fire extinguishing covers the entire bottom area of ​​the vehicle.

[0061] The control system 3 of this embodiment is used to control the walking of the self-propelled module 1, the water spraying of the water spraying module 2, and the collection of the collection module, signal transmission and other operations. The control system 3 can be wirelessly connected to the remote control terminal, and instructions can be sent to the control system 3 through the remote control terminal, so that the entire fire extinguishing device can be controlled by the control system 3, including the start and stop control of the device, the path planning of the self-propelled module 1, the telescopic operation of the first telescopic pipe 22 and the second telescopic pipe 23, the direction adjustment of the branch pipe 25, the data collection of various information collection devices, and the control of the nozzle. For example, the self-propelled module 1 is controlled to achieve self-propelled walking, and after reaching the position of the burning vehicle, high-pressure water mist is sprayed through the nozzles corresponding to the bottom of the vehicle and on both sides, so as to achieve efficient fire extinguishing of the chassis of the electric vehicle and its surrounding areas. The control system 3 can automatically or manually adjust the fire extinguishing operation according to the on-site situation to ensure efficient fire extinguishing.

[0062] In this embodiment, the acquisition module includes a laser radar and a camera; the laser radar and the camera can be installed on the self-propelled module 1 or / and the retractable pipe, the laser radar is used to accurately measure the vehicle's outer contour and generate point cloud data; the camera is used to capture the vehicle image, and the control system 3 is used to perform edge recognition and contour fitting based on the vehicle image through a visual algorithm to obtain the size information of the vehicle; and calibrate the size information of the vehicle based on the point cloud data. In specific implementation, the control system 3 combines the point cloud data with the image analysis results, and uses a data fusion algorithm to calibrate the length and height of the vehicle to ensure the accuracy and robustness of the detection results. For example, in this embodiment, the size information of the vehicle can be obtained through the laser radar and the camera to adjust the water spray module 2 according to the size information of the vehicle, for example, to control the extension amount of multiple retractable pipes and the angle of the branch nozzle 26.

[0063] The control system 3 can also construct a three-dimensional map based on the environmental information scanned by the laser radar and the camera, and use the A* algorithm or SLAM technology to plan the path based on the three-dimensional map. SLAM (Simultaneous Localization and Mapping) realizes self-positioning according to the position and map during the movement, and builds an incremental map based on its own positioning to realize the robot's autonomous positioning and navigation. The A* (A-star) algorithm is the most effective direct search algorithm for solving the shortest path in a static network. In the field of robotics, the A* algorithm is often used for mobile robot path planning. Thus, the self-propelled module 1 scans the surrounding environment in real time through the laser radar and the camera to construct a three-dimensional map; the control system 3 uses the A* algorithm or SLAM (Simultaneous Localization and Mapping) technology based on the three-dimensional map combined with the fire-fighting task or manual operation instruction sent by the remote control end to ensure that the fire-fighting disposal device can accurately locate and reach the fire source in a complex environment without manual push; the self-propelled module 1 can dynamically plan the optimal travel path, avoid obstacles and automatically navigate to the target position.

[0064] In some embodiments, the acquisition module may also include a thermal imaging camera, which is used to scan the target area in real time to obtain the thermal image of the target area. The control system 3 is used to identify the hot spot area with abnormally high temperature based on the thermal image collected by the thermal imaging camera, and calculate the coordinate information of the fire source in combination with the calibration parameters of the thermal imaging camera, so as to adjust the water spray module 2 according to the coordinate information of the fire source. Among them, the control system 3 adopts a dynamic tracking algorithm to continuously monitor the position change of the fire source, and adjusts the water spray module 2 in real time to ensure the efficiency and accuracy of the fire extinguishing process. Among them, the target area is a certain area range where the vehicle is located.

[0065] Therefore, this embodiment uses a thermal imaging camera to scan the target area in real time, identifies hot spots where the temperature is abnormally high, and calculates the precise coordinates of the fire source in combination with the calibration parameters of the thermal imaging camera, thereby providing a basis for the positioning and spraying of the fire extinguishing device. For example, the position and direction of the nozzle can be adjusted according to the location information of the fire source.

[0066] In some embodiments, the various information collection devices may also include an infrared thermal imager, and the control system 3 is used to obtain temperature distribution data based on the thermal radiation data collected by the infrared thermal imager, and identify the fire size information based on the temperature distribution data; based on the coordinate information of the fire source and the fire size information, the second servo motor 252 is controlled to adjust the spray angle and direction of the branch nozzle 26, as well as adjust the output pressure of the pump system of the water spray module and the atomization device inside the nozzle.

[0067] Therefore, precise adjustment is achieved through the control system 3. The control system 3 dynamically sends instructions to adjust the servo mechanism of the nozzle according to the real-time monitoring of the fire source location and fire size to change the spray angle and direction. At the same time, it adjusts the output pressure of the pump system and the atomization device inside the nozzle to accurately control the intensity and coverage of the water mist, thereby ensuring the maximum fire extinguishing effect.

[0068] The mobile electric vehicle fire extinguishing device of this embodiment can realize the self-propelling of the fire extinguishing device through the self-propelling module 1 near the burning electric vehicle, without the need for human push, thus ensuring the safety of the fire extinguishing personnel. Through multiple first retractable pipes 22 and second retractable pipes 23, it can adapt to vehicles of different sizes, fully cover the burning electric vehicle power battery box, and at the same time reduce the space required for the device; through multiple adjustable branch pipes 25, the branch nozzles 26 at the end of the branch pipes 25 can be positioned at different positions of the vehicle chassis to ensure that the fire extinguishing covers the entire power battery box area under the vehicle; the fire extinguishing device transports water to each main nozzle 24 and branch nozzle 26, and the high-pressure water mist sprayed by the main nozzle 24 and branch nozzle 26 can quickly reduce the fire temperature and suppress the spread of the fire, solving the problem that the traditional fire extinguishing device is not effective in electric vehicle fires.

[0069] Embodiment 2:

[0070] In this embodiment, based on the mobile electric vehicle fire extinguishing device in the first embodiment, this embodiment provides a control method for the mobile electric vehicle fire extinguishing device.

[0071] like Figure 5 As shown, the control method of the mobile electric vehicle fire extinguishing device includes the following steps:

[0072] Step S1, in response to receiving a remote command or a preset route from a remote control terminal, driving the self-propelled module 1 to travel to a position near a vehicle to be extinguished; the remote command includes the position information of the vehicle to be extinguished.

[0073] When a fire occurs in an electric vehicle, the operator activates the fire extinguishing device through the remote control terminal. The fire extinguishing device has a self-propelled function and can automatically drive to the location of the vehicle where the fire occurs according to a preset route or remote command.

[0074] Step S2, obtaining various information through the acquisition module, including obtaining the coordinate information of the fire source and the size information of the vehicle to be extinguished.

[0075] The control system 3 obtains the size information of the vehicle through laser radar and cameras, and obtains the location information of the fire source through thermal imaging cameras.

[0076] Step S3, based on the coordinate information of the fire source and the size information of the vehicle to be extinguished, adjust the position of the mobile electric vehicle fire extinguishing device, the direction of the water spray module, the extension amount of multiple retractable pipes and the direction of the branch pipe 25.

[0077] When the device approaches the fire source, the remote control terminal starts the automatic positioning function. The control system 3 realizes 360-degree flexible steering through the self-propelled module 1 according to the collected coordinate information of the fire source and the size information of the vehicle to achieve fine-tuning of the position of the fire extinguishing device, so that it is accurately aligned with the chassis and side areas of the vehicle, ensuring that the fire extinguishing device is operated in the best position; according to the size of the electric vehicle, the length of the first telescopic pipe 22 and the second telescopic pipe 23 are adjusted so that the main nozzle 24 can cover the chassis and side areas of the vehicle. At the same time, according to the size of the vehicle and the location of the fire source, the control system 3 automatically adjusts the angle of the branch pipe 25 to achieve full coverage of the chassis and side areas; thereby automatically adjusting the positioning of the fire extinguishing device and the direction of the nozzle, and achieving precise fire extinguishing operation.

[0078] Step S4, turn on the main nozzle 24 and the branch nozzle 26, and obtain the temperature distribution data of the target area in real time through various information collection devices, and identify the fire size information based on the temperature distribution data, and according to the coordinate information of the fire source and the fire size information, control the second servo motor 252 to adjust the spray angle and direction of the branch nozzle 26, and adjust the output pressure of the pump system, the atomization device inside the main nozzle 24 and the branch nozzle 26.

[0079] When the first telescopic pipe 22, the second telescopic pipe 23 and the branch pipe 25 are adjusted, the main nozzle 24 and the branch nozzle 26 are turned on to spray high-pressure water mist at the fire location and the battery area of ​​the vehicle. The intensity of the main nozzle 24 and the branch nozzle 26 are dynamically feedback-adjusted by the control system 3. The thermal radiation and temperature distribution at the fire scene can be continuously monitored by an infrared thermal imager or a temperature sensor, and the data is transmitted to the control system 3. The control system 3 automatically adjusts the spray angle, direction and water mist intensity of the branch nozzle 26 based on these feedback data to ensure that the fire-extinguishing water mist can fully contact the fire source, quickly control the fire and reduce the temperature. The nozzles under the vehicle and on both sides work synchronously to form a comprehensive coverage to ensure the isolation and disposal effect of the vehicle to prevent it from spreading to other vehicles or combustibles.

[0080] During the fire extinguishing process, the control system 3 will monitor the changes in the fire situation of the vehicle in real time, and dynamically adjust the telescopic length of the telescopic pipe, the direction of the branch pipe 25, and the direction of the nozzle. According to the changes in the location of the fire source, the control system 3 can quickly adjust the spray direction and intensity of the nozzle to ensure the maximum fire extinguishing effect.

[0081] Step S5, after the fire is under control, the remote control end stops spraying the main nozzle 24 and the branch nozzle 26 through the control system 3, and at the same time, controls the extended parts of the first telescopic pipe 22 and the second telescopic pipe 23 to gradually retract to the initial position. After completing the task, the fire extinguishing device can be quickly evacuated from the scene and prepared for the next use. In this way, the fire extinguishing device can be quickly deployed and responded to at different times and locations, and adapt to a variety of fire scenarios.

[0082] In the description of the aforementioned embodiments, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0083] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0084] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Mobile electric vehicle fire extinguishing device, characterized in that: It includes self-propelled module, water spray module, control system and collection module; The water spray module includes a main water supply pipeline, a plurality of retractable pipelines, a main nozzle, and a branch pipeline. The main water supply pipeline is integrated on the control system. One end of the main water supply pipeline is respectively connected to the retractable pipelines. One end of the retractable pipeline is connected to the main nozzle. At least one retractable pipeline is also connected to a rotatable branch pipeline. The end of the branch pipeline is connected to the branch nozzle. The acquisition module is connected to one or more of the self-propelled module, the water spray module, and the control system; The control system is communicatively connected with the self-propelled module, the retractable pipeline, the branch pipeline, and the acquisition module.

2. The mobile electric vehicle fire extinguishing device according to claim 1, characterized in that: The water spray module further includes a pump system, which is integrated into the control system, and the control system is communicatively connected with the pump system.

3. The mobile electric vehicle fire extinguishing device according to claim 1, characterized in that: The retractable pipe includes a first retractable pipe and a second retractable pipe. One end of the main water supply pipe is a water inlet, and the other end is divided into three paths, which are respectively connected to the first retractable pipe and the second retractable pipe through elbows. The first retractable pipe is located at the bottom of the electric vehicle, and the second retractable pipes on both sides correspond to the two sides of the electric vehicle.

4. The mobile electric vehicle fire extinguishing device according to claim 1, characterized in that: The telescopic pipe includes a fixed pipe section, a telescopic pipe section, a fixed bracket, and a first driving mechanism. One end of the fixed pipe section is connected to and communicates with the main water supply pipe, and the other end of the fixed pipe section is inserted into the telescopic pipe section. The fixed bracket is fixedly connected to the fixed pipe section, the fixed end of the first driving mechanism is connected to the fixed bracket, and the telescopic end of the first driving mechanism is connected to the telescopic pipe section.

5. The mobile electric vehicle fire extinguishing device according to claim 4, characterized in that: The first driving mechanism includes a first servo motor, a ball screw, a connecting piece, a screw nut, and a screw support seat; The first servo motor is fixedly connected to the fixed bracket, the two screw support seats are connected to the fixed bracket at intervals, the two ends of the ball screw are connected to the screw support seats, the end of the ball screw is connected to the first servo motor, the screw nut is threadedly connected to the ball screw, the screw nut is connected to the connecting piece, and the connecting piece is fixedly connected to the telescopic pipe section; The control system is in communication connection with the first servo motor.

6. The mobile electric vehicle fire extinguishing device according to claim 3, characterized in that: The first telescopic pipe is axially connected to a plurality of branch pipes.

7. The mobile electric vehicle fire extinguishing device according to claim 6, characterized in that: The branch pipeline includes a branch pipe, a second servo motor, and an L-shaped connecting piece. The first telescopic pipeline extends radially upward to form a connecting pipe. The branch pipe is rotatably connected to the connecting pipe. The top of the connecting pipe is closed. The second servo motor is connected to the top of the connecting pipe. The output end of the second servo motor is connected to one end of the L-shaped connecting piece, and the other end of the L-shaped connecting piece is fixedly connected to the outside of the branch pipe.

8. The mobile electric vehicle fire extinguishing device according to claim 1, characterized in that: The acquisition module includes a laser radar, a camera, a thermal imaging camera, and an infrared imager, and the laser radar, the camera, the thermal imaging camera, and the infrared imager are installed on the self-propelled module and / or the water spray module.

9. A control method for a mobile electric vehicle fire extinguishing device, characterized in that: The mobile electric vehicle fire extinguishing device according to any one of claims 1 to 8 comprises the following steps: Step S1: In response to receiving a remote command or a preset route from a remote control terminal, driving the self-propelled module to travel to a position near a vehicle to be extinguished; Step S2: Obtaining the coordinate information of the fire source and the size information of the fire-fighting vehicle through the acquisition module; Step S3: Based on the coordinate information of the fire source and the size information of the vehicle to be extinguished, adjusting the position of the mobile electric vehicle fire extinguishing device, the direction of the water spray module, the extension amount of the multiple retractable pipes and the direction of the branch pipes; Step S4: Turn on the main nozzle and branch nozzles, and obtain the temperature distribution data of the target area in real time through the acquisition device, identify the fire size information based on the temperature distribution data, and adjust the spray angle and direction of the branch nozzle according to the coordinate information of the fire source and the fire size information.

10. The control method of the mobile electric vehicle fire extinguishing device according to claim 1, characterized in that: The water spray module further comprises a pump system, the pump system is integrated in the control system, and the control system is communicatively connected with the pump system; In step S4, the fire size information is identified according to the temperature distribution data, and the spray angle and direction of the branch nozzle is adjusted according to the coordinate information of the fire source and the fire size information, and the output pressure of the pump system and the atomization device inside the main nozzle and the branch nozzle are adjusted; Step S5: After the fire is under control, the remote control end stops spraying the main nozzle and the branch nozzle through the control system. At the same time, it controls the extended part of the retractable pipe to gradually retract to the initial position and controls the self-propelled module to evacuate the scene.

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