Fire extinguishing system and pure car and truck carrier

Abstract

The present invention provides a fire-fighting rover and a pure car and truck carrier. The fire-fighting rover comprises a body and a controller, wherein the body is provided with a spraying device and a fire extinguishing agent port, and the fire extinguishing agent port is in communication with the spraying device; and the controller is used for acquiring position information of a vehicle experiencing thermal runaway and controlling the body to move to a position under said vehicle; and the spraying device is used for spraying a fire extinguishing agent to said vehicle, so that the fire-fighting rover can continuously cool down a battery pack from underneath said vehicle.

Description

Fire extinguishing system and car carrier

[0001] Cross-reference to related applications

[0002] The present disclosure claims priority to the Chinese patent application No. 202421594880.5, filed on July 5, 2024, and entitled "Fire fighting vehicle and car carrier", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of fire fighting equipment, and more particularly, to a fire fighting vehicle and a car carrier. BACKGROUND

[0004] With the rapid development of new energy vehicles, the number of new energy vehicles transported by car carriers has also increased significantly. Once a new energy vehicle catches fire during transportation, it is easy to cause the fire to spread and diffuse, resulting in significant casualties and property losses. Therefore, the fire risk control of car carriers is particularly important.

[0005] In order to transport a large number of vehicles, a car carrier generally has multiple parking decks. Each parking deck needs to park multiple vehicles, and the distance between the vehicles is extremely small. However, the existing fire fighting vehicles are too large to move freely on the parking decks, and therefore cannot be used for fire fighting on the parking decks. SUMMARY

[0006] The present disclosure aims to provide a fire fighting vehicle and a car carrier to solve the problem that the existing fire fighting vehicles are too large to be used for fire fighting on car carriers.

[0007] In a first aspect, the present disclosure discloses a fire fighting vehicle for extinguishing a vehicle in thermal runaway, comprising a vehicle body and a controller.

[0008] The vehicle body is provided with a spraying device and a fire extinguishing agent interface. The fire extinguishing agent interface is used to connect a storage system storing fire extinguishing agent, and the fire extinguishing agent interface is in communication with the spraying device to send fire extinguishing agent into the spraying device.

[0009] The controller is used to obtain position information of the vehicle in thermal runaway, and control the vehicle body to move to the bottom of the vehicle in thermal runaway. The spraying device is used to spray fire extinguishing agent to the vehicle in thermal runaway.

[0010] In some possible embodiments, the vehicle body comprises an outer shell and at least one retractable wheel set, and the retractable wheel set is used to drive the outer shell to move.

[0011] The telescopic wheel set is in communication connection with the controller, and the controller is used to control the telescopic wheel set to extend out of the shell or retract into the shell.

[0012] In some possible implementation manners, the telescopic wheel set comprises an electric control spring, a transmission shaft and a wheel, the wheel is connected with the transmission shaft, one end of the electric control spring is connected with the transmission shaft, and the other end of the electric control spring is connected with the top of the shell, the electric control spring is in communication connection with the controller, and the controller is further used to control the electric control spring to extend or retract.

[0013] In some possible implementation manners, the bottom plate of the shell is provided with at least one electromagnet, the electromagnet is in communication connection with the controller, and the controller is further used to control the electromagnet to be powered on or powered off, so that the electromagnet is adsorbed or released from adsorption to place the deck of the vehicle.

[0014] In some possible implementation manners, the bottom plate of the shell is rectangular, and one electromagnet is arranged at each of the four corners of the bottom plate of the shell.

[0015] In some possible implementation manners, the spraying device comprises a plurality of first spray heads for spraying water mist.

[0016] In some possible implementation manners, the first spray head has a first nozzle, at least part of the first nozzle is directed to a first direction, and at least part of the first nozzle is directed to a second direction, the first direction is directly above the vehicle body, and the second direction is obliquely above the vehicle body.

[0017] In some possible implementation manners, the angle between the second direction and the vertical direction is 30°-60°.

[0018] In some possible implementation manners, the spraying device further comprises at least one telescopic component, the telescopic component extends at least partially to the outside of the shell, the telescopic component is provided with at least one first nozzle of the first spray head directed to the second direction, and the first spray head is located at one end of the telescopic component outside the shell.

[0019] The telescopic component is connected with the controller, and the controller is further used to control the telescopic component to extend outwards of the vehicle in thermal runaway when the vehicle body is located below the vehicle in thermal runaway, and to control the telescopic component to retract after spraying is completed.

[0020] In some possible embodiments, the vehicle body comprises at least one telescopic component, the telescopic component at least partially extends to the outside of the shell, at least one nozzle of the first spray head on the telescopic component is directed to the second direction, and the first spray head is located at the end of the telescopic component outside the shell.

[0021] The telescopic component is connected with the controller, the controller is further configured to control the telescopic component to extend to the outside of the thermal runaway vehicle when the vehicle body is located below the thermal runaway vehicle, and to control the telescopic component to retract after the spraying is completed.

[0022] In some possible embodiments, four telescopic components are arranged on the shell, and the four telescopic components are uniformly arranged on the outside of the shell.

[0023] In some possible embodiments, the spraying device further comprises a first delivery pipe and a second delivery pipe, the first delivery pipe and the second delivery pipe are in communication with each other at opposite ends, at least one of the first delivery pipe and the second delivery pipe is in communication with the fire extinguishing agent interface, four telescopic components are arranged at the ends of the first delivery pipe and the second delivery pipe, and the first spray heads on the four telescopic components are in communication with the first delivery pipe and the second delivery pipe.

[0024] In some possible embodiments, the first delivery pipe and the second delivery pipe are both hard pipes, and at least one of the first delivery pipe and the second delivery pipe is provided with the first spray head, and the first nozzle of the first spray head is directed to the first direction.

[0025] In some possible embodiments, among the first spray heads arranged on the first delivery pipe and the second delivery pipe, the first nozzle of at least one of the first spray heads is directed to the bottom of the vehicle body.

[0026] In some possible embodiments, the spraying device further comprises at least one second spray head, and the second spray head is used to spray foam fire extinguishing agent.

[0027] In some possible embodiments, a foam generator is further included, the second spray head has a second nozzle, and the foam generator is arranged on the second nozzle.

[0028] In some possible embodiments, the second spray head is provided with at least four second spray heads, and each of the second spray heads is directed to the directly above, directly in front of, and different sides of the vehicle body.

[0029] In some possible implementation manners, the vehicle body is further provided with a reversing valve, each interface of the reversing valve is correspondingly connected with the fire extinguishing agent interface, the first pipeline connected with the first spray head, and the second pipeline connected with the second spray head, the reversing valve is connected with the controller, and the controller is further configured to control the reversing valve to switch between a first communication state and a second communication state.

[0030] In the first communication state, the fire extinguishing agent interface is in communication with the first pipeline, and in the second communication state, the fire extinguishing agent interface is in communication with the second pipeline.

[0031] In some possible implementation manners, the vehicle body is further provided with at least one roller device, the fire extinguishing agent interface is connected with the storage system through a hose, the roller device is arranged on a moving path of the vehicle body, and the roller device is configured to limit a moving path of the hose to prevent the hose from entering below rear wheels of the vehicle.

[0032] In some possible implementation manners, the roller device includes at least one roller and a rotating shaft, the roller is rotatably connected with the deck through the rotating shaft, and when the vehicle body moves around the roller, the hose is in rolling contact with a surface of the roller.

[0033] In some possible implementation manners, the vehicle body is provided with a detection device, the detection device is configured to collect first information in front of the vehicle body and second information above the vehicle body, the detection device is connected with the controller, and the controller is further configured to control the vehicle body to adjust a position according to the first information and the second information, so that the vehicle body moves below a battery pack of the vehicle in thermal runaway.

[0034] In some possible implementation manners, the detection device includes a first infrared camera and a second infrared camera, the first infrared camera is configured to collect the first information, and the second infrared camera is configured to collect the second information.

[0035] In some possible implementation manners, the first infrared camera and the second infrared camera are located inside the vehicle body, and the vehicle body is provided with high-temperature-resistant and waterproof glass opposite the cameras of the first infrared camera and the second infrared camera.

[0036] In a second aspect, the present disclosure discloses a car carrier, comprising a plurality of decks and a control system, a cabin for parking vehicles is formed between any two adjacent decks, at least one fire truck according to any one of the first aspect is arranged in each cabin, the controller of the fire truck is in communication connection with the control system, the controller is used for receiving the position information of the vehicle in thermal runaway transmitted by the control system, and the vehicle body of the fire truck is controlled to move to the below of the vehicle in thermal runaway for spraying fire extinguishing agent according to the position information.

[0037] In combination with the above technical solutions, the fire truck and the car carrier provided by the present disclosure, the fire truck comprises a vehicle body and a controller, the height of the vehicle body is less than the height of the chassis of the vehicle in thermal runaway, and the width of the vehicle body is also less than the distance between the two rear wheels of the vehicle in thermal runaway, so that the vehicle body can directly pass through the gap between the vehicles from below without the need to pass through the gap between the vehicles, and the spraying device and the fire extinguishing agent interface are arranged on the vehicle body, the fire extinguishing agent interface is connected with the storage system for storing fire extinguishing agent, the spraying device is in communication with the fire extinguishing agent interface, so that the fire extinguishing agent stored in the storage system can enter the spraying device through the fire extinguishing agent interface and be sprayed out through the spraying device, and after the controller obtains the position information of the vehicle in thermal runaway, the vehicle body can be controlled to move to the below of the vehicle in thermal runaway according to the position information, so as to extinguish and cool the vehicle in thermal runaway from the bottom of the vehicle in thermal runaway, and the battery pack of the new energy vehicle is just at the bottom of the vehicle in thermal runaway, so that the spraying of fire extinguishing agent from the bottom of the vehicle in thermal runaway can effectively improve the extinguishing and cooling effect, so that the fire truck provided by the embodiment of the present disclosure can not only adapt to the dense arrangement of vehicles on the car carrier, but also accurately extinguish and cool the vehicle in thermal runaway on the deck and improve the cooling effect. BRIEF DESCRIPTION OF DRAWINGS

[0038] FIG. 1 is a structural schematic diagram of a fire truck according to an embodiment of the present disclosure;

[0039] FIG. 2 is a schematic diagram of the internal structure of the fire truck according to an embodiment of the present disclosure;

[0040] FIG. 3 is a schematic diagram of the use state of the fire truck according to an embodiment of the present disclosure;

[0041] FIG. 4 is a schematic diagram of the use state of the fire truck according to an embodiment of the present disclosure;

[0042] FIG. 5 is a structural schematic diagram of a fire truck according to another embodiment of the present disclosure;

[0043] FIG. 6 is a schematic diagram of the running route of the fire truck on the deck according to an embodiment of the present disclosure.

[0044] Reference signs: 10-vehicle; 20-deck; 100-vehicle body; 110-jet device; 111-first nozzle; 112-second nozzle; 113-first conveying pipe; 114-second conveying pipe; 115-telescopic part; 120-extinguishing agent interface; 130-housing; 140-telescopic wheel set; 141-wheel; 142-electric control spring; 143-transmission shaft; 144-telescopic rod; 150-controller; 160-electromagnet; 171-first infrared camera; 172-second infrared camera; 180-reversing valve; 190-roller device. DETAILED DESCRIPTION

[0045] In the present disclosure, the term "and / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing alone, A and B existing together, and B existing alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0046] In the embodiments of the present disclosure, the term "a plurality of" means two or more, and other quantifiers are similar.

[0047] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in combination with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, and not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0048] Noun explanation:

[0049] Automobile carrier: a ship specially designed for transporting vehicles, which generally has multiple decks, including fixed decks and movable decks. The movable decks are generally arranged between the fixed decks and can be adjusted in position to adapt to the parking of different vehicles by adjusting the distance between the movable decks and the adjacent decks. The decks are usually connected by internal ramps, and the decks are usually equipped with fixing devices and protection equipment to ensure that the vehicles are not moved or damaged during transportation.

[0050] New energy vehicle: a vehicle that uses a new power system and is completely or mainly driven by new energy. The main types of new energy vehicles currently include pure electric vehicles, plug-in hybrid electric vehicles, hybrid electric vehicles, fuel cell vehicles, and extended-range electric vehicles. These vehicles generally need to be equipped with battery packs to store and provide electric energy. The battery packs are usually arranged under the chassis, under the trunk, in the central channel, under the seats, etc. of the vehicle, i.e., the battery packs are generally located at the bottom of the vehicle.

[0051] The fire-fighting trolley is a commonly used fire-fighting tool. In the related art, an intelligent fire-fighting trolley includes a trolley body, the trolley body includes a base and a high-temperature-resistant cover, a control module is further arranged above the base, a fire extinguisher accommodating cavity is further arranged above the control module, the high-temperature-resistant cover covers the fire extinguisher accommodating cavity, an opening is arranged on the side of the high-temperature-resistant cover, a fire extinguisher nozzle and a conduit extend from the opening, a clamping mechanism is arranged at the opening on the outside of the high-temperature-resistant cover, the clamping mechanism clamps the conduit to control the orientation of the fire extinguisher nozzle, a high-temperature-resistant driving mechanism is arranged at the lower part of the base, and the driving mechanism controls the movement of the trolley body. The high-temperature-resistant driving mechanism includes universal wheels and high-temperature-resistant baffles, and meets the requirement of long-time movement and use in a high-temperature environment for a fire-fighting task. The clamping mechanism can control the orientation of the spray head to align the fire source according to the fire direction. The control module automatically detects the fire source, timely adjusts the orientation of the nozzle, and completes the fire extinguishing action.

[0052] Thermal runaway vehicle: a vehicle that causes a rapid temperature rise, a large amount of smoke, a fire, and even an explosion or other dangers under certain closed or semi-closed conditions due to the uncontrolled battery pack.

[0053] However, for the sea transportation of new energy vehicles, in order to transport a large number of vehicles, the automobile transport ship generally has more than ten parking decks, and thousands of vehicles are parked in a relatively closed space, with a front-to-back distance of about 30 cm and a left-to-right distance of about 10 cm between the vehicles. The above-mentioned fire-fighting trolley needs to use a high-temperature-resistant cover and a clamping device, resulting in a very large and high vehicle body that cannot pass between the parked vehicles on the parking deck, which is the main reason why most fire-fighting trolleys cannot be used on automobile transport ships.

[0054] At the same time, new energy vehicle fires during sea transportation are basically caused by battery faults. Lithium batteries continuously release a large amount of heat when they are in thermal runaway. The battery pack is placed near the bottom of the vehicle, and the existing fire-fighting trolley, like the above-mentioned fire-fighting trolley, cannot approach the thermal runaway vehicle, i.e., cannot cool the bottom of the thermal runaway vehicle to reduce the battery's own reaction, and the cooling effect is weak. In addition, the current thermal runaway of new energy vehicles requires long-term continuous cooling of the battery pack to reduce the possibility of rekindling, and the existing fire-fighting trolley basically uses a one-time spraying of fire extinguishing agent control method for fire extinguishing, which is difficult to achieve the effect of preventing the rekindling of the battery pack.

[0055] In order to avoid the above problems, the present embodiment provides a fire truck and a car transport ship, wherein the fire truck comprises a vehicle body and a controller, the height of the vehicle body is less than the height of the chassis of the vehicle on fire, and the width of the vehicle body is also less than the distance between the two rear wheels of the vehicle on fire, so that the vehicle body can pass through the gap between the vehicles and freely pass under the vehicles, and the vehicle body is provided with a spraying device and a fire extinguishing agent interface, the fire extinguishing agent interface is connected with a storage system for storing fire extinguishing agent, and the spraying device is in communication with the fire extinguishing agent interface, so that the fire extinguishing agent stored in the storage system can enter the spraying device through the fire extinguishing agent interface and be sprayed out through the spraying device. After the controller obtains the position information of the vehicle on fire, the vehicle body can be controlled to move to the position below the vehicle on fire according to the position information, so as to extinguish the fire and cool the vehicle on fire from the bottom of the vehicle on fire, and the battery pack of the new energy vehicle is at the bottom of the vehicle on fire, so that the spraying of the fire extinguishing agent from the bottom of the vehicle on fire can effectively improve the extinguishing and cooling effect, so that the fire truck provided by the present embodiment can not only adapt to the dense arrangement of vehicles on the car transport ship, but also accurately extinguish the fire and cool the vehicle on fire on the deck, thereby improving the cooling effect.

[0056] Please refer to FIG. 1 and FIG. 2, the present embodiment provides a fire truck which can be applied to a car transport ship and can also be applied to other areas similar to the car transport ship for storing vehicles, such as a garage, and the present embodiment will be described in detail with the car transport ship as an example. The fire truck comprises a vehicle body 100 and a controller 150.

[0057] The height of the vehicle body 100 is less than the height of the chassis of the vehicle 10 parked on the deck, and the width of the vehicle body 100 is less than the distance between the two rear wheels of the vehicle 10 parked on the deck, so that the vehicle body 100 can pass through the bottom of other vehicles 10 on the path and move to the position below the vehicle on fire 10. Specifically, the chassis heights of different types of vehicles are not the same, and the chassis heights of some vehicles can reach more than 20 cm, while the chassis of some vehicles is relatively low and can be only more than 10 cm. In addition, the widths of different types of vehicles are also different, and the distances between the rear wheels are not the same. Therefore, the width and height of the vehicle body 100 can be designed according to the types of the vehicles 10 parked on the deck 20.

[0058] In actual application, the height of the vehicle body 100 can be set to 15 cm or less, for example, 12 cm, which can basically avoid the chassis of most vehicles on the market. The width of the vehicle body 100 does not need to be too large, so it can be designed to be much smaller than the distance between the rear wheels of the vehicles on the market. Of course, this is only an example and does not limit the size of the vehicle body 100.

[0059] The vehicle body 100 is provided with a spraying device 110 and a fire extinguishing agent interface 120, the fire extinguishing agent interface 120 is used to connect a storage system storing fire extinguishing agent, the storage system can communicate with the fire extinguishing agent interface 120 through a hose, when the vehicle body 100 moves, the hose has strong deformability and can adapt to the moving path of the vehicle body 100, at the same time, the fire extinguishing agent can be common water, foam extinguishing agent and other fire extinguishing agents that can be transported through pipelines and suitable for battery pack fire extinguishing and cooling. The fire extinguishing agent interface 120 communicates with the spraying device 110 to send the fire extinguishing agent into the spraying device 110 for spraying, the spraying area of the spraying device 110 at least includes the bottom of the thermal runaway vehicle 10 to continuously cool the battery pack, of course, the spraying area of the spraying device 110 can also include the surrounding area of the thermal runaway vehicle 10 to block the spread of fire.

[0060] The controller 150 can be connected with the control system of the automobile transport ship, that is, the controller 150 can be provided with a signal receiver for receiving signals sent by the control system, and the automobile transport ship is generally provided with a fire monitoring system at present, for example, the sensing devices such as smoke alarm, temperature alarm and BMS alarm are arranged in each area, once the thermal runaway of the vehicle 10 is found, the sensing devices in the corresponding area will send signals to the control system, the control system will transmit the coordinates of the corresponding accident area to the controller 150, and the controller 150 controls the vehicle body 100 to move to the accident area for fire extinguishing and cooling, so that only a small number of fire engines are needed on each deck 20 to complete the maintenance of multiple vehicles 10 on the deck 20. It can be understood that how the control system determines the position information of the thermal runaway vehicle 10 and transmits it to the controller 150, and how the controller 150 controls the vehicle body 100 to move according to the position information are both relatively mature existing technologies in the field, and this embodiment will not be described here.

[0061] Specifically, after the controller 150 obtains the position information of the thermal runaway vehicle 10, it controls the vehicle body 100 to pass through the bottom of other vehicles 10 on the moving path, moves to the position below the thermal runaway vehicle 10, and can transmit signals to the storage system or the control system, and the control system controls the storage system to release the fire extinguishing agent, so that the fire extinguishing agent enters the spraying device 110 through the fire extinguishing agent interface 120 for spraying, and the thermal runaway vehicle 10 is cooled, which makes the fire engine of the embodiment suitable for use in areas where vehicles are densely arranged, and can continuously cool the battery pack from the bottom of the vehicle to avoid the rekindling of the battery pack and effectively improve the control ability of the fire.

[0062] It is understood that the controller 150 in this embodiment can be a controller set up separately for each fire truck, or it can be the control system of the car carrier. In this case, it is only necessary to install a signal receiver on the vehicle body 100 to receive the control system signal, and install a signal transmitter to transmit the information that the vehicle body 100 needs to feed back to the control system. Whether to set up a separate controller 150 or to directly use the control system of the car carrier as the controller 150 can be selected according to the actual situation. This embodiment does not limit it.

[0063] In some possible implementations, as shown in Figure 2, a detection device may also be installed on the vehicle body 100. The detection device is used to collect first information in front of the vehicle body 100 and second information above the vehicle body 100. The detection device is connected to the controller 150. After receiving the first information and the second information, the controller 150 controls the vehicle body 100 to adjust its position so that the vehicle body 100 moves to the bottom of the battery pack of the thermally runaway vehicle 10 to precisely cool the battery pack.

[0064] The detection device may include a first infrared camera 171 and a second infrared camera 172. The first infrared camera 171 is used to collect first information in front of the vehicle body 100, and the second infrared camera 172 is used to collect second information above the vehicle body 100. Both the first infrared camera 171 and the second infrared camera 172 are connected to the controller 150.

[0065] Specifically, after the controller 150 receives the position information sent by the control system, it moves to the vicinity of the thermally runaway vehicle 10. The first infrared camera 171 can identify the abnormal temperature area in front of the vehicle body 100, causing the vehicle to move towards the area with the highest temperature. When it approaches the bottom of the thermally runaway vehicle 10, the second infrared camera 172 is activated and can identify the abnormal temperature area above the vehicle body 100. Since the battery pack is the source of fire, as long as the vehicle body 100 moves to the area with the highest temperature, the battery pack of the thermally runaway vehicle 10 can be located, achieving precise cooling of the abnormal temperature area of ​​the battery pack.

[0066] The vehicle body 100 is provided with a shell 130, and in order to protect the first infrared camera 171 and the second infrared camera 172, the first infrared camera 171 and the second infrared camera 172 can be installed inside the shell 130, the camera of the first infrared camera 171 and the second infrared camera 172 is flush with the edge of the shell 130 of the vehicle body 100, and the high-temperature-resistant waterproof glass is installed in the camera corresponding shooting area, which can protect the first infrared camera 171 and the second infrared camera 172, prevent high temperature and extinguishing agent from causing damage to the first infrared camera 171 and the second infrared camera 172, and will not affect the first infrared camera 171 and the second infrared camera 172 to obtain external information.

[0067] It can be understood that the vehicle body 100 can also be made of high-temperature-resistant and corrosion-resistant materials to avoid corrosion of the vehicle body 100 by the extinguishing agent, and also to avoid deformation of the vehicle body 100 due to high temperature.

[0068] In addition, the detection device can also be other equipment, as long as it can identify the position of the battery pack of the thermal runaway vehicle 10 according to the temperature or image information, and the present embodiment does not limit it.

[0069] In some possible implementations, in addition to including the shell 130, the vehicle body 100 also includes at least one retractable wheel set 140, the retractable wheel set 140 is in communication connection with the controller 150, and the controller 150 is used to control the retractable wheel set 140 to move to the lower side of the shell 130 to drive the shell 130 to move, or control the retractable wheel set 140 to retract to the inside of the shell 130, reduce the height of the whole vehicle body 100, so that the spraying area of the spraying device 110 is larger.

[0070] Specifically, the telescopic wheel set 140 comprises an electric control spring 142, a transmission shaft 143 and wheels 141 located at both ends of the transmission shaft 143, one end of the electric control spring 142 is connected with the transmission shaft 143, the other end is connected with the top of the shell 130, the electric control spring 142 is in communication connection with the controller 150, and the controller 150 is also used for controlling the electric control spring 142 to lengthen or shorten, a through hole for the wheels 141 to pass through is formed on the bottom plate of the shell 130, when the electric control spring 142 lengthens, the wheels 141 are pushed to extend at least partially outside the shell 130 through the through hole, the wheels 141 lift the whole shell 130, at this time, the driving assembly drives the wheels 141 to rotate, so that the vehicle body 100 moves, and when the electric control spring 142 shortens, the force pushing the wheels 141 disappears, the shell 130 moves downward, the wheels 141 retract to the inside of the shell 130, and the bottom plate of the shell 130 directly contacts the deck 20, at this time, the height of the vehicle body 100 can be lowered, and since the distance between the spraying device 110 and the bottom of the vehicle is too close to affect the effective spraying range, the wheels 141 are retracted to increase the distance between the spraying port of the spraying device 110 and the bottom of the vehicle, and the spraying range is effectively expanded.

[0071] It can be understood that the telescopic wheel set 140 can also have other structures, for example, a telescopic electric cylinder, a hydraulic cylinder, a pneumatic cylinder or the like is used to drive the transmission shaft 143 to drive the wheels 141 to rise or fall, and the specific selection can be made according to actual needs, which is not limited in the embodiment.

[0072] In addition, the vehicle body 100 is also provided with a driving assembly for driving the wheels 141 to rotate, wherein the driving assembly is connected with at least one telescopic wheel set 140, so that the wheels 141 of the telescopic wheel set 140 serve as the main driving wheels. How the driving assembly drives the wheels 141 to rotate is well known to those skilled in the art, and will not be described here again.

[0073] Further, a telescopic rod 144 can be arranged, the electric control spring 142 is sleeved outside the telescopic rod 144, one end of the telescopic rod 144 is connected with the transmission shaft 143, the other end is connected with the top cover of the shell 130, so that the movement direction of the transmission shaft 143 is limited through the telescopic rod 144. The telescopic rod 144 can be in the form of an outer rod and an inner rod, the outer rod is sleeved outside the inner rod, and the depth of the inner rod inserted into the outer rod can be adjusted.

[0074] Further, the deck 20 is generally a steel structure at present, at least one electromagnet 160 can be arranged on the bottom plate of the shell 130, the electromagnet 160 is in communication connection with the controller 150, and the controller 150 is also used for controlling the electromagnet 160 to be powered on or powered off, so that the electromagnet 160 adsorbs or stops adsorbing the deck 20 for placing the vehicle 10.

[0075] Specifically, the electromagnet 160 can be arranged inside or outside the shell 130, and it is preferable to be arranged inside the shell 130 because the electromagnet 160 needs to be powered, and it is convenient to protect it.

[0076] The electromagnet 160 can be arranged one or more, and the electromagnet 160 is mainly used to be electrified and adsorbed on the deck 20 when the wheel 141 is retracted into the shell 130, effectively preventing the position of the vehicle body 100 from being deviated or causing the vehicle body 100 to shake due to excessive pressure when the fire extinguishing agent is supplied at the beginning, and then affecting the spray angle and effective spray range of the nozzle.

[0077] Exemplarily, the bottom plate of the shell 130 is rectangular, and the electromagnet 160 can be arranged at the four corners of the bottom plate of the shell 130, thereby improving the adsorption effect between the electromagnet 160 and the deck 20 and improving the stability of the vehicle body 100. Specifically, when the fire extinguishing agent is sprayed at the beginning, the instantaneous impact force is large, and the electromagnet 160 located at the four corners of the bottom plate of the shell 130 can effectively stabilize the position of the vehicle body 100 and avoid the vehicle body 100 from shaking.

[0078] It can be understood that the shell 130 can also be circular or other shapes, as long as it can pass through the bottom of the vehicle, and the present embodiment does not limit it.

[0079] In some possible embodiments, referring to FIG. 2, the fire extinguishing agent is water, and the spraying device 110 includes a plurality of first nozzles 111 for spraying water mist, that is, the first nozzles 111 can be high-pressure fine water mist nozzles to spray fine water mist for spraying and cooling the bottom of the vehicle 10 in thermal runaway.

[0080] Among them, the first nozzle 111 has a first nozzle, and at least part of the first nozzle of the first nozzle 111 faces the first direction, and at least part of the first nozzle faces the second direction. The first direction is directly above the vehicle body 100, and the second direction is obliquely above the vehicle body 100. The first nozzle facing directly above the vehicle body 100 can spray the bottom of the vehicle 10 in thermal runaway to cool the bottom of the vehicle 10 in thermal runaway, and the first nozzle facing obliquely above the vehicle body 100 can spray around the vehicle 10 in thermal runaway to prevent the vehicle 10 in thermal runaway from affecting surrounding vehicles 10 and avoid the spread of thermal runaway.

[0081] In addition, the angle between the second direction and the vertical direction can be 30°-60°, and when the first nozzle 111 sprays water mist at this angle to the obliquely above the vehicle body 100, it can effectively cover the water mist around the vehicle 10 in thermal runaway to prevent it from affecting surrounding vehicles and causing more vehicles in thermal runaway.

[0082] At present, the movable deck is provided with many holes, and the diameter of the holes is generally about 10 cm. When the vehicle below the movable deck is in thermal runaway, the vehicle 10 in thermal runaway will generate a large amount of smoke, and the smoke moves upward and will affect the vehicle 10 above the movable deck. At this time, the first nozzle can be arranged on the vehicle body 100 and the first nozzle 111 faces the bottom of the vehicle body 100. When the vehicle 10 in thermal runaway is below the movable deck, the controller 150 receives the position information sent by the control system, so that the vehicle body 100 moves to the top of the vehicle 10 in thermal runaway, and the first nozzle 111 facing the bottom of the vehicle body 100 sprays water mist. The water mist sprays the top of the vehicle 10 in thermal runaway through the holes on the movable deck, and effectively controls the influence of a large amount of upwardly propagating hot smoke generated in thermal runaway on the vehicle 10 on the upper deck 20.

[0083] It can be understood that when the vehicle 10 on the movable deck is sprayed, it is actually not necessary to spray the vehicle 10 below the movable deck. Therefore, the first nozzle 111 can be provided with a solenoid valve, and the solenoid valve is connected with the controller 150. Whether the first nozzle 111 works or not is controlled by the controller 150.

[0084] Of course, the increase of the solenoid valve will increase the number of components and the installation difficulty. However, all the first nozzles 111 are started at the same time, which actually does not affect the vehicle 10. Therefore, the solenoid valve can not be increased, and the embodiment does not limit it.

[0085] Exemplarily, as shown in FIG. 3, the top of the vehicle 10 is a movable deck. When the vehicle 10 is in thermal runaway, the bottom of the vehicle has a fire truck. The first nozzle of the fire truck faces the first nozzle 111 in the first direction and the second direction, and sprays the bottom of the vehicle and the outside of the vehicle. The top of the vehicle also has a fire truck, and the first nozzle of the fire truck faces the first nozzle 111 at the bottom of the vehicle body 100, so as to spray the top of the vehicle 10. Thus, a full-range fine water mist coverage area is formed outside the vehicle 10, which effectively suppresses the thermal runaway of the battery pack and continuously cools the battery pack and the surrounding environment.

[0086] In order to make the high-pressure fine water mist spray the vehicle better, the spray shape of the first nozzle 111 can be a solid cone, and the spray angle is 90°-120°.

[0087] In some possible implementation, referring to FIG. 2, the vehicle body 100 comprises at least one telescopic component 115, which extends at least partially to the outside of the shell 130, i.e. the telescopic component 115 can be installed on the outer wall of the shell 130 or inside the shell 130, which can be determined according to actual conditions. The telescopic component 115 is provided with at least one first nozzle of the first spray head 111 facing the second direction, and the first spray head 111 is located at the end of the telescopic component 115 outside the shell 130. The telescopic component 115 is connected with the controller 150, and the controller 150 is further used to control the telescopic component 115 to extend to the outside of the thermal runaway vehicle 10 when the vehicle body 100 is located below the thermal runaway vehicle 10, and to control the telescopic component 115 to retract after the spraying is completed.

[0088] Specifically, the chassis of the vehicle 10 is low, and after the fire truck enters the bottom of the vehicle 10, the spraying range of the first spray head 111 is limited by the height of the chassis of the vehicle 10, and it is difficult to effectively cover the surrounding area of the vehicle 10. However, when the vehicle 10 is in thermal runaway, the temperature is very high, and the high temperature formed by thermal radiation may affect the surrounding vehicles 10. The telescopic component 115 of the present embodiment can extend to the outside of the thermal runaway vehicle 10 under the control of the controller 150 after the vehicle body 100 reaches the bottom of the thermal runaway vehicle 10, and the first spray head 111 on the telescopic component 115 can be close to the edge of the thermal runaway vehicle 10. As long as the first spray head 111 on the telescopic component 115 can spray a certain range outside the vehicle 10, the present embodiment does not limit the length of the telescopic component 115 extending outward. Meanwhile, the first nozzle of the first spray head 111 installed on the telescopic component 115 faces obliquely upward, so that after the telescopic component 115 extends, the first spray head 111 installed on the telescopic component 115 can cover the surrounding area of the vehicle 10 as shown in FIG. 3, so that the fire truck can quickly and effectively reduce the temperature of thermal radiation and a large amount of bottom heat smoke when the vehicle 10 is in thermal runaway, and effectively prevent the thermal runaway from spreading to the surrounding vehicles 10.

[0089] For example, the first nozzle of the first spray head 111 installed on the telescopic component 115 faces an angle of 45° with the vertical direction, so as to further improve the effect of cooling the surrounding smoke of the thermal runaway vehicle 10. Of course, this is only an example and does not limit the direction of the first nozzle of the first spray head 111.

[0090] It can be understood that the number and position of the telescopic component 115 can be set according to actual needs, and the present embodiment does not limit them.

[0091] Exemplarily, the shell 130 is provided in a rectangular shape, and one telescopic component 115 is arranged on each of the two sides in the length direction of the shell 130, and one first spray head 111 is arranged on the end of the telescopic component 115 away from the shell 130.

[0092] Exemplarily, as shown in FIG. 5, four telescopic components 115 are arranged on the shell 130, and the four telescopic components 115 are uniformly arranged on the outer side of the shell 130, and meanwhile, a plurality of first spray heads 111 can be sequentially arranged on each telescopic component 115 along the length direction of the telescopic component 115.

[0093] It can be understood that the shell 130 can also be provided in a circular shape or other shapes, as long as it can freely move at the bottom of the vehicle 10, and the present embodiment does not limit it here.

[0094] Specifically, the spraying device 110 further comprises a first conveying pipe 113 and a second conveying pipe 114 which are perpendicular to each other, the first conveying pipe 113 and the second conveying pipe 114 are cross arranged and in communication with each other at the cross, at least one of the first conveying pipe 113 and the second conveying pipe 114 is in communication with the fire extinguishing agent interface 120, and the four telescopic components 115 are correspondingly arranged at the end of the first conveying pipe 113 and the second conveying pipe 114, and the first spray heads 111 on the four telescopic components 115 are correspondingly in communication with the first conveying pipe 113 and the second conveying pipe 114, so that the water passing through the fire extinguishing agent interface 120 is sent into the corresponding first spray head 111 for spraying through the first conveying pipe 113 and the second conveying pipe 114.

[0095] Among them, the first conveying pipe 113 and the second conveying pipe 114 can be provided as hard pipes, and at least one of the first conveying pipe 113 and the second conveying pipe 114 is provided with at least one first nozzle of the first spray head 111 facing the first direction. That is, a plurality of first nozzles of the first spray head 111 facing the top of the vehicle body 100 can be arranged on the first conveying pipe 113 and the second conveying pipe 114, and these first spray heads 111 are used for spraying the bottom of the vehicle 10 in thermal runaway.

[0096] Of course, the first spray head 111 with the first nozzle facing the bottom of the vehicle body 100 can also be arranged on the first conveying pipe 113 and the second conveying pipe 114, so that the water supply of all the first spray heads 111 can be realized without the need to arrange other pipelines in the shell 130, and the water supply structure is simplified.

[0097] It can be understood that, in order to protect the first spray head 111, the first nozzle end face of the first spray head 111 arranged on the first conveying pipe 113 and the second conveying pipe 114 is flush with the outer edge of the shell 130.

[0098] That is, due to the different chassis heights of different sizes of vehicles, the spraying range of the first spray head 111 is also different. Therefore, for vehicles of different sizes, the telescopic part 115 can be telescoped in different lengths and directions to achieve full coverage of the battery pack area at the bottom of the vehicle 10 and the outer edge of the vehicle 10. Of course, the telescopic part 115 is deployed after the fire truck reaches the bottom of the accident vehicle 10 to avoid interference between the telescopic part 115 and the vehicle 10 or other deck 20 components during the travel of the vehicle body 100.

[0099] In some possible embodiments, the telescopic part 115 can include a first hard pipe, a second hard pipe, and a power assembly. The second hard pipe is sleeved in the first hard pipe, and the second hard pipe is hollow inside. A flexible pipe connected with the first delivery pipe 113 or the second delivery pipe 114 is arranged in the second hard pipe, so as to protect the flexible pipe by the first hard pipe and the second hard pipe, and the flexible pipe can also deform adaptively when the second hard pipe moves relative to the first hard pipe. The first spray head 111 can be arranged at one end of the second hard pipe that cannot be retracted into the first hard pipe. The power assembly can be a telescopic electric cylinder or a combination of a motor, a steel wire rope, and a pulley, as long as it can drive the second hard pipe to move relative to the first hard pipe.

[0100] The first hard pipe can be mounted in the shell 130. After the vehicle body 100 reaches below the thermal runaway vehicle 10, the second hard pipe is driven to extend by the power assembly controlled by the controller 150, so that the first spray head 111 can spray the outer edge of the thermal runaway vehicle 10. After the spraying is completed, the second hard pipe can be driven to return to the original position by the power assembly controlled by the controller 150.

[0101] Of course, when multiple first spray heads 111 need to be arranged on the telescopic part 115, the flexible pipe in the second hard pipe can be fixed, and the first spray head 111 connected with the flexible pipe can be arranged at the corresponding position of the second hard pipe. At the same time, the diameter of the first hard pipe is slightly larger, so that the first spray head 111 will not collide with the first hard pipe when the second hard pipe is retracted into the first hard pipe.

[0102] It can be understood that the telescopic part 115 can also be arranged in other structures, as long as it can be controlled to telescope by the controller 150 and drive the first spray head 111 to move.

[0103] In some possible embodiments, referring to FIG. 2, the fire extinguishing agent also includes a foam fire extinguishing agent, and the spraying device 110 further includes at least one second spray head 112 for spraying the foam fire extinguishing agent.

[0104] The foam fire extinguishing agent sprayed by the second spray head 112 can quickly extinguish open flames, form a suffocation area and a certain degree of isolation barrier, and prevent the spread of fire.

[0105] It can be understood that when only one of the first spray head 111 or the second spray head 112 is arranged on the vehicle body 100, it only needs to be communicated with the fire extinguishing agent interface 120.

[0106] If the first spray head 111 and the second spray head 112 are arranged on the vehicle body 100 at the same time, two fire extinguishing agent interfaces 120 can be arranged, one of which is connected to a storage tank storing foam fire extinguishing agent, and the other is connected to a storage tank storing water, and the first spray head 111 and the second spray head 112 are respectively communicated with the corresponding fire extinguishing agent interface 120 through pipelines.

[0107] Compared with being arranged separately, the first spray head 111 and the second spray head 112 are arranged at the same time, two different fire extinguishing agents can be sprayed according to the situation, and the cooling demand of the battery pack can be better adapted.

[0108] Specifically, as shown in FIG. 4, when the vehicle body 100 reaches the vehicle 10 below the thermal runaway, the foam fire extinguishing agent can be sprayed through the second spray head 112 to extinguish the open fire and form a certain degree of isolation barrier, and then the second spray head 112 is closed and the first spray head 111 is opened. The first spray head 111 sprays water mist for continuous cooling, so that the first spray head 111 and the second spray head 112 cooperate to achieve rapid fire extinguishing and continuous cooling.

[0109] In some possible embodiments, when the first spray head 111 and the second spray head 112 are arranged on the vehicle body 100 at the same time, only one fire extinguishing agent interface 120 can be arranged to reduce the number of hoses dragged when the vehicle body 100 moves, thereby reducing the difficulty of moving the vehicle body 100. At this time, a reversing valve 180 can be arranged on the vehicle body 100. The reversing valve 180 can be a three-way reversing valve, and the three interfaces of the three-way reversing valve are respectively connected with the fire extinguishing agent interface 120, a first pipeline connected with the first spray head 111 and a second pipeline connected with the second spray head 112. The reversing valve 180 is connected with the controller 150, and the controller 150 is further used to control the reversing valve 180 to switch between the first communication state and the second communication state.

[0110] It can be understood that the type of the reversing valve 180 can be selected according to the number of interfaces required, as long as the reversing valve 180 can be connected with the controller 150 and controlled by the controller 150, which is not limited in the embodiment.

[0111] In the first communication state, the extinguishing agent interface 120 is in communication with the first pipeline, and the extinguishing agent delivered from the storage system enters the first nozzle 111 through the extinguishing agent interface 120 and the first pipeline. In the second communication state, the extinguishing agent interface 120 is in communication with the second pipeline, and the extinguishing agent delivered from the storage system enters the second nozzle 112 through the extinguishing agent interface 120 and the second pipeline, so that the first nozzle 111 and the second nozzle 112 are alternately operated through the reversing valve 180.

[0112] In order to form an isolation area around the thermal runaway vehicle 10 to prevent the spread of fire, the second nozzle of the second nozzle 112 is arranged to face upward, the second nozzle of the second nozzle 112 is arranged to face forward, and the second nozzles of two second nozzles 112 are arranged to face the two sides of the vehicle body 100, that is, the foam extinguishing agent is sprayed from the top of the vehicle body 100, the front of the vehicle body 100, and the two sides of the vehicle body 100 in the forward direction, so that the foam extinguishing agent is sprayed from the top of the vehicle body 100, the front of the vehicle body 100, and the two sides of the vehicle body 100 in the forward direction, so that the foam extinguishing agent is sprayed from the top of the vehicle body 100, the front of the vehicle body 100, and the two sides of the vehicle body 100 in the forward direction.

[0113] It can be understood that the number of second nozzles 112 can also be more, and the position can also be adjusted according to the actual situation, which is not limited in the embodiment.

[0114] Further, a foam generator can be arranged at the front end of the second nozzle of the second nozzle 112. When the foam extinguishing agent is sprayed, the foam generator can generate a large amount of foam, so that the open fire is more easily extinguished. The foam generator is preferably a high-multiple foam generator. The high-multiple foam generator can generate foam with a high multiple, which helps the foam extinguishing agent to quickly cover a large area and improve the rate of extinguishing and forming an isolation barrier. The high-multiple foam generator is a device known to those skilled in the art, and will not be described in detail in the embodiment.

[0115] In some possible embodiments, the storage system can include a foam extinguishing agent tank and a water mist tank placed on the deck 20. The foam extinguishing agent tank and the water mist tank can be provided with electromagnetic valves to control whether to deliver the foam extinguishing agent and water outward, and the electromagnetic valves can be in communication connection with the controller 150 or the control system of the automobile transport ship.

[0116] Of course, the electromagnetic valve is directly connected with the controller 150, and the reaction delay is shorter. Specifically, after the vehicle body 100 reaches the bottom of the accident vehicle 10, the controller 150 first controls the electromagnetic valve of the foam extinguishing agent tank to open, and at the same time, the reversing valve 180 is switched to the second communication state, the foam extinguishing agent is sprayed out through the second nozzle 112 through the second pipeline, and it is judged by the second infrared camera 172 whether the open fire is extinguished. After the open fire is extinguished, the controller 150 controls the electromagnetic valve of the foam extinguishing agent tank to close, controls the electromagnetic valve of the water mist tank to open, and at the same time, controls the reversing valve 180 to switch to the first communication state. The water enters the first nozzle 111 through the first pipeline, so that the first nozzle 111 sprays high-pressure water mist, realizes continuous cooling, and forms a water mist barrier.

[0117] The foam extinguishing agent tank and the water mist tank can be connected to the hose through a tee joint, and the extinguishing agent is delivered to the extinguishing agent interface 120 through the hose.

[0118] The hose can be selected from a high-pressure explosion-proof hose. The high-pressure explosion-proof hose can withstand high working pressure and is usually made of high-strength materials such as high-strength fibers. It adopts a multi-layer structure design, which can effectively prevent explosion caused by excessive pressure or external impact, and can be suitable for various chemical media, has good corrosion resistance, and also has excellent high-temperature resistance and flexibility, which is very suitable for use in the application environment of the fire truck. At the same time, the extinguishing agent interface 120 can be provided with a quick connector for quick insertion with the high-pressure explosion-proof hose. In addition, since the moving path of the vehicle body 100 is relatively long and needs to cover a large number of vehicles 10, the overall length of the high-pressure explosion-proof hose is also relatively long. At this time, an automatic pipe winder can be provided to realize the automatic extension and contraction of the high-pressure explosion-proof hose. The automatic pipe winder generally includes a housing, a reel, a spring mechanism, a locking mechanism, and a guide mechanism. The reel is used to wind the delivery hose, the spring mechanism is used to provide power for automatic winding, the locking mechanism allows the user to lock the delivery hose at any length, and the guide mechanism ensures that the delivery hose is uniformly wound. The structure and principle of the automatic pipe winder are well known to those skilled in the art, and will not be described here.

[0119] Of course, the hose can also be selected from other structures of the pipeline, as long as it can be suitable for the current environment, and the present embodiment does not limit it.

[0120] The vehicle body 100 will enter the bottom of the vehicle 10, causing the hose to be possibly rolled under the wheels of the vehicle 10, so that the movement of the vehicle body 100 is blocked. In this regard, referring to FIG. 6, the dotted line in FIG. 6 is the moving track of the fire truck, and a plurality of roller devices 190 can be arranged on the moving path of the vehicle body 100, so as to limit the moving path of the hose by the roller devices 190, and avoid the hose from entering under the wheels of the vehicle.

[0121] Specifically, when parking the vehicle 10, the vehicle 10 is parked according to certain rules, so as to park and find the vehicle 10. For example, referring to FIG. 6, when the vehicles 10 are arranged in lines, the fire truck moves left and right to the corresponding line of vehicles 10, and then enters the bottom of the corresponding line of vehicles 10. At this time, a roller device 190 can be arranged outside the rear wheel of the last vehicle in each line of vehicles 10, so as to limit the moving path of the hose when the vehicle body 100 enters the bottom of the corresponding line of vehicles 10, and avoid the hose from entering under the wheels of the vehicle.

[0122] Specifically, referring to FIG. 7, the roller device 190 can include at least one roller and a rotating shaft, the roller is rotatably connected with the rotating shaft, and the rotating shaft is used to be connected with the deck 20. The rotating shaft is arranged perpendicularly to the deck 20. When the vehicle body 100 moves around the roller to the bottom of the corresponding line of vehicles, the hose is in rolling contact with the surface of the roller, and the hose is straight, so that only the installation position of the roller needs to be limited, so as to avoid the hose from being rolled under the wheels of the vehicle 10.

[0123] It can be understood that when the automatic hose reel is arranged on one side of the deck 20, all the roller devices 190 can be arranged on the side of each line of vehicles 10 close to the automatic hose reel. Sometimes, there are too many vehicles in a layer, and a plurality of fire trucks can be arranged. At this time, the automatic hose reel can also be arranged on the other side of the deck 20, and the roller device 190 can be arranged on both sides of each line of vehicles 10.

[0124] Of course, in order to ensure the use effect of the roller device 190, the distance between the roller device 190 and the rear wheel of the last vehicle in each line is preferably greater than or equal to 10 cm, and the roller is also away from the side of the vehicle body, and can be partially or entirely located between the two rear wheels, as long as it does not block the moving path of the fire truck, so as to ensure that the hose can keep a certain distance from the wheels of the vehicle 10 under the limitation of the roller, and avoid entering under the wheels.

[0125] The embodiment also provides an automobile transport ship, which comprises a plurality of decks 20 and a control system, a cabin for parking a vehicle 10 is formed between any two adjacent decks 20, at least one fire truck in the above embodiment is arranged in each cabin, and the controller 150 of the fire truck is in communication connection with the control system, the controller 150 is used for receiving position information of a thermal runaway vehicle 10 transmitted by the control system and controlling the vehicle body 100 of the fire truck to move to below the thermal runaway vehicle 10 to spray fire extinguishing agent, so that the fire handling capacity of the automobile transport ship is greatly improved.

[0126] The setting mode and use principle of the fire truck on the deck 20 are described in detail in the above embodiment, and thus the description is not repeated here.

[0127] Obviously, various modifications and variations of the present disclosure can be made by those skilled in the art without departing from the spirit and scope of the present disclosure. Thus, it is intended that the present disclosure also cover such modifications and variations of this disclosure falling within the scope of the claims of the present disclosure and their equivalents.

Claims

1. A fire truck for extinguishing a vehicle (10) that is on fire, characterized in that, The vehicle body (100) and the controller (150) are included. The vehicle body (100) is provided with a spraying device (110) and a fire extinguishing agent interface (120), the fire extinguishing agent interface (120) is used for connecting a storage system storing fire extinguishing agent, and the fire extinguishing agent interface (120) communicates with the spraying device (110) to send fire extinguishing agent into the spraying device (110). The controller (150) is used for acquiring position information of the vehicle (10) in thermal runaway, and controlling the vehicle body (100) to move to the bottom of the vehicle (10) in thermal runaway, and the spraying device (110) is used for spraying fire extinguishing agent to the vehicle (10) in thermal runaway.

2. The fire apparatus of claim 1, wherein, The vehicle body (100) includes a shell (130) and at least one retractable wheel set (140), and the retractable wheel set (140) is used for driving the shell (130) to move. The retractable wheel set (140) is in communication connection with the controller (150), and the controller (150) is used for controlling the retractable wheel set (140) to extend out of the shell (130) or retract into the shell (130).

3. The fire apparatus of claim 2, wherein, The retractable wheel set (140) includes an electric control spring (142), a transmission shaft (143) and a wheel (141). The wheel (141) is connected with the transmission shaft (143), one end of the electric control spring (142) is connected with the transmission shaft (143), and the other end is connected with the top of the shell (130), the electric control spring (142) is in communication connection with the controller (150), and the controller (150) is also used for controlling the electric control spring (142) to extend or retract.

4. The fire fighting vehicle according to claim 2 or 3, characterized in that At least one electromagnet (160) is arranged on the bottom plate of the shell (130), the electromagnet (160) is in communication connection with the controller (150), and the controller (150) is also used for controlling the electromagnet (160) to be powered on or powered off, so that the electromagnet (160) is attracted or released from the deck (20) for placing the vehicle (10).

5. The fire apparatus of claim 4, wherein, The bottom plate of the shell (130) is rectangular, and one electromagnet (160) is arranged at each of the four corners of the bottom plate of the shell (130).

6. The fire apparatus of any of claims 2-5, wherein, The spraying device (110) includes a plurality of first nozzles (111) for spraying water mist.

7. The fire apparatus of claim 6, wherein, The first nozzle (111) has a first nozzle, at least part of the first nozzle is directed to a first direction, and at least part of the first nozzle is directed to a second direction, the first direction is directly above the vehicle body (100), and the second direction is obliquely above the vehicle body (100).

8. The fire apparatus of claim 7, wherein, The included angle between the second direction and the vertical direction is 30°-60°.

9. The fire fighting vehicle according to claim 7 or 8, characterized in that The spraying device (110) further comprises at least one telescopic component (115) extending at least partially outside the housing (130), and at least one first nozzle of the first spray head (111) is arranged on the telescopic component (115) and located at an end of the telescopic component (115) outside the housing (130). The telescopic component (115) is connected to the controller (150), and the controller (150) is further configured to control the telescopic component (115) to extend outside the vehicle (10) in thermal runaway when the vehicle body (100) is located below the vehicle (10) in thermal runaway, and to control the telescopic component (115) to retract after spraying is completed.

10. The fire apparatus of claim 9, wherein, The housing (130) is provided with four telescopic components (115) arranged around the outside of the housing (130).

11. The fire apparatus of claim 10, wherein, The spraying device (110) further comprises intersecting first and second delivery pipes (113, 114), the intersection of the first and second delivery pipes (113, 114) being in communication with each other, at least one of the first and second delivery pipes (113, 114) being in communication with the fire extinguishing agent interface (120), and four telescopic components (115) being arranged at the ends of the first and second delivery pipes (113, 114) correspondingly, and the first spray heads (111) on the four telescopic components (115) being correspondingly in communication with the first and second delivery pipes (113, 114).

12. The fire apparatus of claim 11, wherein, The first and second delivery pipes (113, 114) are both hard pipes, and at least one of the first and second delivery pipes (113, 114) is provided with the first spray head (111), and the first nozzle of the first spray head (111) faces the first direction.

13. The fire fighting vehicle according to claim 11 or 12, characterized in that Among the first spray heads (111) arranged on the first and second delivery pipes (113, 114), the first nozzle of at least one of the first spray heads (111) faces the bottom of the vehicle body (100).

14. The fire fighting vehicle according to any of claims 6-13, characterized in that The spraying device (110) further comprises at least one second spray head (112) for spraying foam fire extinguishing agent.

15. The fire apparatus of claim 14, wherein, Further comprising a foam generator, the second spray head (112) has a second nozzle, and the foam generator is arranged on the second nozzle.

16. The fire fighting vehicle according to claim 14 or 15, characterized in that The second spray head (112) is arranged at least four, and each of the second spray heads (112) faces directly above, directly in front of, and different sides of the vehicle body (100), respectively.

17. The fire apparatus of any of claims 14-16, wherein, The vehicle body (100) is further provided with a reversing valve (180), each interface of the reversing valve (180) is correspondingly connected with the fire extinguishing agent interface (120), a first pipeline connected with the first spray head (111) and a second pipeline connected with the second spray head (112), the reversing valve (180) is connected with the controller (150), and the controller (150) is further used for controlling the reversing valve (180) to switch between a first communication state and a second communication state. In the first communication state, the fire extinguishing agent interface (120) is in communication with the first pipeline, and in the second communication state, the fire extinguishing agent interface (120) is in communication with the second pipeline.

18. The apparatus of any of claims 1-17, wherein, Further comprising at least one roller device (190), the fire extinguishing agent interface (120) is connected with the storage system through a hose, the roller device (190) is arranged on a moving path of the vehicle body (100), and the roller device (190) is used for limiting the moving path of the hose to prevent the hose from entering below rear wheels of the vehicle (10).

19. The apparatus of claim 18, wherein, The roller device (190) comprises at least one roller and a rotating shaft, the roller is rotatably connected with a deck (20) through the rotating shaft, and when the vehicle body (100) moves around the roller, the hose is in rolling contact with a surface of the roller.

20. The apparatus of any of claims 1-19, wherein, The vehicle body (100) is provided with a detection device, the detection device is used for collecting first information in front of the vehicle body (100) and second information above the vehicle body (100), the detection device is connected with the controller (150), and the controller (150) is further used for controlling the vehicle body (100) to adjust a position, so that the vehicle body (100) moves below a battery pack of the vehicle (10) in thermal runaway.

21. The apparatus of claim 20, wherein, The detection device comprises a first infrared camera (171) and a second infrared camera (172), the first infrared camera (171) is used for collecting the first information, and the second infrared camera (172) is used for collecting the second information.

22. The apparatus of claim 21, wherein, The first infrared camera (171) and the second infrared camera (172) are located inside the vehicle body (100), and the vehicle body (100) is provided with high-temperature-resistant waterproof glass opposite to camera lenses of the first infrared camera (171) and the second infrared camera (172).

23. A car carrier comprising a plurality of decks (20) between which a hold for parking vehicles (10) is formed, and a control system, characterized in that, Each cabin is provided with at least one fire fighting vehicle as claimed in any one of claims 1-22, a controller (150) of the fire fighting vehicle is in communication connection with the control system, the controller (150) is used for receiving position information of the vehicle (10) in thermal runaway transmitted by the control system and spraying fire extinguishing agent according to movement of a vehicle body (100) of the fire fighting vehicle below the vehicle (10) in thermal runaway.

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