Rapid fire extinguishing device for new energy automobile

Abstract

A rapid fire extinguishing device for a new energy automobile comprises a fire extinguishing cover device capable of horizontally stretching or rotationally stretching, the fire extinguishing cover device comprises a flame-retardant fabric, the inner side of the flame-retardant fabric is connected with a horizontal stretching framework or a rotary stretching framework in a wrapping mode, and the horizontal stretching framework or the rotary stretching framework is of a hollow pipeline structure. The hollow pipeline structure is connected with the fire-fighting water spray head and the fire-fighting water connector, a pressure relief skylight is formed in the surface of the flame-retardant fabric, a water blocking fence surrounding the new energy automobile is arranged at the bottom of the fire extinguishing cover device, and fire-fighting water sprayed by the fire-fighting water spray head is accumulated between the water blocking fence and the new energy automobile to form a water pool to soak the new energy automobile. According to the rapid fire extinguishing device for the new energy automobile, the whole automobile is rapidly wrapped with the fire extinguishing cover device on the basis of portability, air isolation is achieved, then multi-angle jet fire extinguishing is achieved through the telescopic framework, the soaking fire extinguishing performance on the automobile is achieved through the water blocking fence, and finally the explosion risk caused by gas accumulation is prevented through the pressure relief skylight.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire-fighting equipment, and in particular relates to a rapid fire-fighting device for new energy vehicles. Background Art

[0002] As an important part of green transportation, the lithium-ion battery system of new energy vehicles has the characteristics of fast ignition speed, high combustion temperature and high risk of re-ignition when thermal runaway occurs. Traditional fire extinguishing methods face multiple technical bottlenecks: conventional fire blankets lack rigid support structures and are easily lifted up by high-pressure gas generated by thermal runaway of batteries, resulting in fire extinguishing failure; fire hose spraying has blind spots, making it difficult to achieve three-dimensional rapid fire extinguishing; open sprinkler systems consume a large amount of water and are prone to secondary flooding in closed spaces such as underground parking lots. In the prior art, covering fire extinguishing devices generally have problems such as poor structural stability, low fire extinguishing efficiency, and insufficient water resource utilization, which cannot meet the unique fire extinguishing needs of new energy vehicles. In particular, for the special structure of the battery pack located on the chassis, conventional fire extinguishing means are difficult to form effective three-dimensional protection. In addition, the existing devices lack adaptability designs for different parking scenarios, and it is difficult to achieve rapid deployment in narrow parking spaces or concentrated parking areas. How to build a special fire extinguishing system for new energy vehicles with rapid response, all-round coverage, and efficient use of water resources has become a technical problem that needs to be solved in this field. In view of the above problems, the prior art urgently needs to be improved. How to quickly extinguish fires in new energy vehicles with a small and controllable impact is an object of study for those skilled in the art. Summary of the invention

[0003] The present invention provides a new energy vehicle rapid fire extinguishing device, which has the advantages of rapidly forming a closed fire extinguishing space, improving fire extinguishing efficiency by immersion, preventing battery re-ignition, and adapting to different parking scenarios.

[0004] A new energy vehicle rapid fire extinguishing device comprises a horizontally telescopic or rotationally telescopic fire extinguishing hood device, the fire extinguishing hood device comprises a flame-retardant fabric, the inner side of the flame-retardant fabric is coated with a horizontally telescopic frame or a rotationally telescopic frame, the horizontally telescopic frame or the rotationally telescopic frame are both hollow pipe structures, the hollow pipe structure is connected to a fire water sprinkler and a fire water joint, a pressure relief skylight is provided on the surface of the flame-retardant fabric, a covering curtain is provided on the outer side of the pressure relief skylight, a water-blocking fence surrounding the new energy vehicle is provided at the bottom of the fire extinguishing hood device, and fire water sprayed from the fire water sprinkler is accumulated between the water-blocking fence and the new energy vehicle to form a pool for soaking the new energy vehicle.

[0005] The described rotary telescopic fire extinguishing hood device includes a first U-shaped fire extinguishing hood and a second U-shaped fire extinguishing hood that can rotate up to 180 degrees relative to each other. The first U-shaped fire extinguishing hood includes more than two U-shaped skeletons with a hollow pipe structure. Both ends of the U-shaped skeleton are provided with water inlets, and the water inlets are connected to the first hinge through a connecting pipe provided with a water inlet interface. The first U-shaped skeleton on the side in contact with the ground of the first hinge is connected to a fire water joint. The pipeline on the outer side of the first U-shaped skeleton is connected to a U-shaped first water blocking fence, and the pipeline on the inner side of the first U-shaped skeleton is connected to a U-shaped second water blocking fence. The second U-shaped fire extinguishing hood includes more than two U-shaped skeletons with a hollow pipe structure. Both ends of the U-shaped skeleton are provided with water inlets, and the water inlets are connected to the second hinge through a connecting pipe provided with a water inlet interface. The pipeline on the outer side of the second U-shaped skeleton on the side in contact with the ground of the second hinge is connected to a U-shaped third water blocking fence, and the pipeline on the inner side of the second U-shaped skeleton is connected to a U-shaped fourth water blocking fence. More than two U-shaped skeletons connected by the first hinge and the second hinge are interconnected through pipes. The rotary telescopic skeleton structure is equivalent to more than two U-shaped skeletons with a hollow pipe structure.

[0006] The described first U-shaped fire extinguishing hood and second U-shaped fire extinguishing hood are in a retracted state and an unfolded state relative to each other. In the retracted state, the first U-shaped fire extinguishing hood and the second U-shaped fire extinguishing hood are stacked one above the other. In the unfolded state, the first U-shaped fire extinguishing hood and the second U-shaped fire extinguishing hood surround each other to form a closed circular structure around the new energy vehicle and on top of the new energy vehicle.

[0007] The described first U-shaped skeleton is connected and cooperates with a telescopic water spray pipe at the bottom of the new energy vehicle.

[0008] The described rotary telescopic fire extinguishing hood device includes a third U-shaped fire extinguishing hood that can rotate up to 90 degrees relative to each other. The third U-shaped fire extinguishing hood includes more than two third U-shaped skeletons with a hollow pipe structure. Both ends of the third U-shaped skeleton are provided with third water inlets, and the third water inlets are connected to the third hinge through a connecting pipe provided with a water inlet interface. The fourth U-shaped skeleton on the side in contact with the ground of the third hinge is connected to a third fire water joint. The pipeline on the outer side of the fourth U-shaped skeleton is connected to a U-shaped seventh water blocking fence, and the pipeline on the inner side of the fourth U-shaped skeleton is connected to a U-shaped eighth water blocking fence. More than two third U-shaped skeletons connected by the third hinge are interconnected through pipes, and the outermost third U-shaped skeleton is connected and cooperates with the wall of the vehicle parking space. The rotary telescopic skeleton structure is equivalent to the third U-shaped skeleton.

[0009] The described third U-shaped fire extinguishing hood is in a retracted state and an unfolded state. In the retracted state, more than two third U-shaped skeletons are attached to the wall. In the unfolded state, more than two third U-shaped skeletons cooperate with the second flame retardant fabric on the outer periphery to surround each other to form a closed semi-circular structure around the new energy vehicle and on top of the new energy vehicle. A second skylight is provided on the side of the second flame retardant fabric, and a second covering curtain is provided outside the second skylight.

[0010] A cylinder is connected between the outermost third U-shaped skeleton and the fourth U-shaped skeleton, and the cylinder controls the retracted state or the deployed state of the third U-shaped fire extinguishing cover.

[0011] The described horizontally telescopic fire extinguishing cover device includes a horizontally telescopic fourth U-shaped fire extinguishing cover. The fourth U-shaped fire extinguishing cover includes more than two fifth U-shaped skeletons with a hollow pipe structure. Between adjacent two fifth U-shaped skeletons, there are a first connecting pipe and a second connecting pipe that cross each other. The intersection of the first connecting pipe and the second connecting pipe is interconnected through a third connecting pipe. Both the first connecting pipe and the second connecting pipe are connected to their respective fifth U-shaped skeletons through connecting pipes. The outermost fifth U-shaped skeleton of the entire fourth U-shaped fire extinguishing cover is connected with a horizontal pipe, and the horizontal pipe is connected to a third fire water joint and a towing hook. At the bottom of the fifth U-shaped skeleton, there are rollers and water outlets. The water outlets are respectively connected to a U-shaped fifth water blocking fence located outside the fifth U-shaped skeleton and a U-shaped sixth water blocking fence located inside the fifth U-shaped skeleton. The horizontally telescopic skeleton structure is equivalent to more than two fifth U-shaped skeletons with a hollow pipe structure.

[0012] The described fourth U-shaped fire extinguishing cover is divided into a retracted state and a deployed state. In the retracted state, more than two fifth U-shaped skeletons are mutually attached. In the deployed state, more than two fifth U-shaped skeletons cooperate with the third flame retardant fabric on the outer periphery to form a relatively enclosed water tank structure surrounding the new energy vehicle around and on the top of the new energy vehicle. There is a third skylight on the side of the third flame retardant fabric, and there is a third covering curtain outside the third skylight. The third flame retardant fabric is provided with a movable covering curtain in the direction opposite to the deployment direction of the fourth U-shaped fire extinguishing cover, and the movable covering curtain is hermetically connected to the U-shaped fifth water blocking fence after being deployed.

[0013] As can be seen from the above, a new energy vehicle rapid fire extinguishing device provided by the present application forms a three-dimensional water curtain by connecting a fire sprinkler through a hollow pipe skeleton, accumulates fire water in the bottom water blocking fence to form an immersion pool, quickly covers the new energy vehicle and establishes a closed fire extinguishing space, and has the advantages of inhibiting battery thermal runaway, preventing reignition, and improving water resource utilization rate. Further, the horizontally telescopic or rotationally telescopic fire extinguishing cover device quickly wraps the entire vehicle on the basis of portability to achieve air isolation, and then sprays fire extinguishing at multiple angles through the horizontally telescopic skeleton or rotationally telescopic skeleton, and forms the immersion fire extinguishing performance for the vehicle through the water blocking fence. Finally, the explosion risk caused by gas accumulation is prevented through the pressure relief skylight. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further describes the present invention with reference to the accompanying drawings:

[0015] Figure 1 It is a three-dimensional structure schematic diagram of a new energy vehicle rapid fire extinguishing device of the present invention;

[0016] Figure 2Schematic three-dimensional structure diagram of the internal use state of a rapid fire extinguishing device for a new energy vehicle according to the present invention;

[0017] Figure 3 is Figure 2 Schematic enlarged structure diagram at position A in

[0018] Figure 4 Schematic three-dimensional structure diagram of a rotary telescopic fire extinguishing hood device according to the present invention;

[0019] Figure 5 Schematic three-dimensional structure diagram of the deployed state of the third U-shaped fire extinguishing hood according to the present invention;

[0020] Figure 6 Schematic three-dimensional structure diagram of the third U-shaped fire extinguishing hood according to the present invention;

[0021] Figure 7 Schematic three-dimensional structure diagram of a horizontally telescopic fire extinguishing hood device according to the present invention;

[0022] Figure 8 Schematic three-dimensional structure diagram of the fourth U-shaped fire extinguishing hood according to the present invention;

[0023] Figure 9 is Figure 8 Schematic enlarged structure diagram at position B in

[0024] Figure 10 Schematic structure diagram of the connecting pipe according to the present invention. Specific implementation

[0025] The following combines the attached Figure 1-10 Specific embodiments are used to further elaborate the technical solutions of this patent in detail.

[0026] In the prior art, fires caused by battery thermal runaway in new energy vehicles are characterized by rapid spread and high risk of reignition. Traditional fire blankets are easily lifted by expanding gases in high-temperature environments, resulting in the failure of isolation. Fire hoses are limited by the spraying angle and are difficult to cover the vehicle bottom and internal hidden fire sources. Using a large amount of water not only affects the safety of the underground space structure but also causes secondary damage to surrounding vehicles. There was an electric vehicle spontaneous combustion accident in an underground parking lot. Due to the inability of conventional fire extinguishing equipment to effectively control the vertical fire of the battery pack, multiple adjacent vehicles were damaged.

[0027] In order to solve the above problems, the R&D team noticed that fire control needs to meet the three requirements of three-dimensional coverage, continuous cooling and water volume control. Initial attempts were made to integrate a sprinkler system inside the fire blanket, and it was found that the flexible material was easily deformed and collapsed when exposed to high temperatures. Subsequently, the design direction was turned to combining a rigid support structure with a flexible flame-retardant layer. By analyzing the movement of hot air flow during vehicle combustion, it was proposed to set a pressure balancing mechanism on the top of the covering device to avoid internal air pressure accumulation. In response to the problem of secondary re-ignition, an adjustable height water storage fence system was introduced to immerse the car for fire extinguishing. The main immersion object is the battery. On the one hand, it can quickly cool down to prevent deflagration, and on the other hand, it can quickly control the fire.

[0028] Therefore, the present application proposes a new energy vehicle rapid fire extinguishing device, including a horizontally telescopic or rotationally telescopic fire extinguishing hood device, the fire extinguishing hood device includes a flame-retardant fabric, the inner side of the flame-retardant fabric is covered and connected to a horizontal telescopic frame or a rotationally telescopic frame, the horizontal telescopic frame or the rotationally telescopic frame are both hollow pipe structures, the hollow pipe structure is connected to a fire water sprinkler 12 and a fire water joint 4, a pressure relief skylight 6 is opened on the surface of the flame-retardant fabric 1, a cover curtain 5 is provided on the outside of the pressure relief skylight 6, a water-blocking fence surrounding the new energy vehicle is provided at the bottom of the fire extinguishing hood device, and the fire water sprayed from the fire water sprinkler is accumulated between the water-blocking fence and the new energy vehicle to form a pool for soaking the new energy vehicle 8.

[0029] Among them, the horizontal telescopic skeleton refers to a support frame that can be expanded laterally, which can be realized by a folding aluminum alloy truss. The telescopic range is controlled by hinged nodes to ensure that the covering device maintains structural stability when it is expanded. The rotating telescopic skeleton refers to a supporting member that can rotate around an axis. For example, a structure with concentric sleeves and bearings is used to enable the fire extinguishing hood to adjust its angle around the vehicle. The flame-retardant fabric is a composite material of aramid fiber and ceramic coating, which maintains structural integrity for more than 30 minutes at a high temperature of 800°C. The pressure relief skylight automatically opens to exhaust when the internal pressure exceeds the set threshold. The water-blocking fence is composed of a water-filled rubber barrier, which forms a circular retaining wall after filling with water.

[0030] Specifically, when the fire hood device is activated, the telescopic frame drives the flame-retardant fabric to form a three-dimensional wrapping space, and the fire water is sprayed from multiple nozzles simultaneously through the hollow pipe. The water flows through the surface of the vehicle body and flows into the bottom fence area to form an immersion pool. The top skylight automatically adjusts the opening and closing degree according to the changes in air pressure generated by the combustion, which not only prevents the cover device from being lifted up, but also avoids complete sealing and causing steam burns to rescue personnel. The fence system limits the water used for firefighting to within 1.5 meters around the vehicle, achieving rapid immersion of the vehicle to extinguish the fire while reducing the impact of firefighting on the surrounding environment and avoiding secondary disasters.

[0031] Compared with the existing technology, the traditional fire blanket lacks three-dimensional protection capabilities and has limited passive isolation effects. This solution combines active spraying with physical isolation to simultaneously establish a fire extinguishing barrier in six directions of the vehicle body.

[0032] Through the above technical solution, the present application achieves three-dimensional fire coverage of the fire scene and solves the technical problem that traditional equipment cannot effectively extinguish the fire source inside the battery compartment. The water-blocking fence controls the spread of the fire while minimizing secondary damage to the greatest extent. Experimental data shows that the water-blocking fence can reduce the temperature of the battery pack from 800 °C to below 200 °C within 90 seconds, and there is no phenomenon of open fire reignition.

[0033] The present application further proposes a rotating and telescoping fire extinguishing hood device, which includes a first U-shaped fire extinguishing hood and a second U-shaped fire extinguishing hood that can rotate up to 180 degrees relative to each other. The first U-shaped fire extinguishing hood includes two or more U-shaped skeletons 9 with a hollow pipe structure. Both ends of the U-shaped skeleton are provided with water inlets, and the water inlets are connected to the first hinge 2 through a connecting pipe 24 provided with a water inlet interface 25. The first hinge 2 is connected to a fire water joint 4 on the first U-shaped skeleton on the side in contact with the ground. The outer pipeline of the first U-shaped skeleton is communicated with the U-shaped first water-blocking fence 3, and the inner pipeline of the first U-shaped skeleton is communicated with the U-shaped second water-blocking fence 7. The second U-shaped fire extinguishing hood includes two or more U-shaped skeletons 9 with a hollow pipe structure. Both ends of the U-shaped skeleton are provided with water inlets, and the water inlets are connected to the second hinge 90 through a connecting pipe 24 provided with a water inlet interface 25. The outer pipeline of the second U-shaped skeleton on the side in contact with the ground of the second hinge 90 is communicated with the U-shaped third water-blocking fence 11, and the inner pipeline of the second U-shaped skeleton is communicated with the U-shaped fourth water-blocking fence 10. Two or more U-shaped skeletons 9 connected by the first hinge 2 and the second hinge 90 are communicated with each other through pipelines.

[0034] Among them, the U-shaped skeleton refers to a U-shaped support structure composed of hollow pipes, which can be specifically made of aluminum alloy or galvanized steel, and its internal channel is used to convey fire water. The hinge refers to a rotatable component that connects adjacent U-shaped skeletons, and can be specifically a metal hinge with a water inlet interface to realize the angle adjustment between the skeletons and the pipeline connection. The water-blocking fence can be specifically a rubber sealing strip or a flexible waterproof cloth, which is used to limit the flow range of fire water and form a water storage area.

[0035] Specifically, when the rotating and telescoping fire extinguishing hood device is in the deployed state, the first U-shaped fire extinguishing hood and the second U-shaped fire extinguishing hood are rotated and deployed to 180 degrees through the hinge to form a closed structure surrounding the new energy vehicle. After the fire water is input through the fire water joint, it flows through the first U-shaped skeleton connected by the first hinge and the second U-shaped skeleton connected by the second hinge in sequence, and finally enters the water storage area formed by the four water-blocking fences. The fire water in the hollow pipes of the first U-shaped skeleton and the second U-shaped skeleton is evenly sprayed onto the vehicle surface through the nozzles, and the water-blocking fence prevents the water from overflowing, ensuring that the water level in the water storage area rises to soak the bottom of the vehicle. This design realizes the rapid deployment of the fire extinguishing hood and the directional coverage of the water flow through the rotational linkage of the split first U-shaped fire extinguishing hood and the second U-shaped fire extinguishing hood.

[0036] Compared with the prior art, the traditional fire blanket can only cover a partial area of the vehicle, while in this solution, through a rotatable U-shaped skeleton combination, two fire extinguishing covers are cooperatively deployed to form a complete surrounding structure. Existing fire hoses have spraying blind spots, while in this solution, built-in nozzles in the skeleton cooperate with water-blocking fences to store water, forming a three-dimensional fire extinguishing system. Conventional fire extinguishing devices cannot control the spread of water flow, while in this solution, by separately arranging inner and outer water-blocking fences, the fire water is concentrated on the bottom and the periphery of the vehicle.

[0037] Through the above technical solution, this application solves the problems of insufficient coverage area and low water flow utilization rate of traditional fire extinguishing devices. The first U-shaped fire extinguishing cover and the second U-shaped fire extinguishing cover rotate and unfold to form a closed space, effectively blocking the oxygen supply and preventing re-ignition. The built-in nozzles in the first U-shaped skeleton and the second U-shaped skeleton cooperate with the water-blocking fences to make the water flow evenly cover the surface of the vehicle and the battery pack at the bottom. The pipe system connected by hinges ensures the rapid delivery of fire water to each nozzle, improving the initial fire extinguishing response speed. The water storage area formed by the water-blocking fence extends the soaking time, enhances the fire extinguishing sustainability while reducing the total water consumption, and reduces the impact of fire extinguishing on the surrounding environment.

[0038] This application further proposes that the first U-shaped skeleton is connected and cooperates with a telescopic water spray pipe 13 at the bottom of the new energy vehicle 8.

[0039] Among them, the first U-shaped skeleton refers to a U-shaped support structure composed of hollow pipes, which can be specifically realized by using aluminum alloy or high-temperature resistant composite materials. The internal pipes are used to convey fire water and are connected to external nozzles. Among them, the telescopic water spray pipe refers to a flexible water delivery pipe with adjustable length, which can be specifically realized by using corrugated pipes or nested sleeve structures, and adapts to the bottom space of different vehicle models through telescopic design.

[0040] Specifically, the first U-shaped skeleton is connected to the telescopic water spray pipe through the internal pipe. When the fire water is input through the fire water joint, the water flows through the internal pipe of the U-shaped skeleton and enters the telescopic water spray pipe. After the telescopic water spray pipe unfolds, it extends under the chassis of the new energy vehicle, and conducts directional spraying on the battery pack or the ignition point through the spray holes. At the same time, a water storage area is formed at the gap between the water-blocking fence and the vehicle, cooperating with the bottom spraying to form a three-dimensional fire extinguishing coverage.

[0041] Compared with the prior art, existing fire extinguishing devices only cover the surface of the vehicle through external nozzles, while in this solution, the bottom telescopic water spray pipe directly sprays on the chassis and the battery pack, solving the problem of continuous re-ignition of the flame in the concealed area at the bottom of the vehicle.

[0042] Through the above technical solution, this application realizes precise fire extinguishing coverage of the chassis area of the new energy vehicle. The water-blocking fence and the bottom spraying cooperate to form a closed water pool, effectively suppressing the re-ignition caused by battery thermal runaway, and at the same time reducing the secondary damage caused by the spread of fire water to the surrounding areas.

[0043] The present application further proposes that the first U-shaped fire extinguishing cover and the second U-shaped fire extinguishing cover are in a retracted state and an unfolded state with respect to each other. In the retracted state, the first U-shaped fire extinguishing cover and the second U-shaped fire extinguishing cover are stacked one above the other. In the unfolded state, the first U-shaped fire extinguishing cover and the second U-shaped fire extinguishing cover surround each other to form a closed circular structure surrounding the periphery and the top of the new energy vehicle 8.

[0044] Among them, the retracted state means that the two U-shaped fire extinguishing covers are compressed and stored in a stacked manner, which is convenient for the device to occupy less space when not in use. The unfolded state means that the two U-shaped fire extinguishing covers form an enclosing structure through rotation and expansion, and this state can quickly cover the whole vehicle to achieve a sealed fire extinguishing space. The closed circular structure means an annular enclosing circle formed by the head-to-tail connection of the two U-shaped fire extinguishing covers, and this structure can prevent high-temperature gas flames from overflowing and form a continuous water film coverage.

[0045] Specifically, in the retracted state, the two U-shaped fire extinguishing covers are compressed and attached by stacking, and the frame is folded and contracted at the hinge connection, and the flame-retardant fabric is wound up accordingly. When fire extinguishing is required, the frame is unfolded by external power drive or manual operation, and the two U-shaped fire extinguishing covers rotate and unfold in opposite directions respectively, and finally form a circular structure that completely surrounds the vehicle at the top and around. During the unfolding process, the flame-retardant fabric extends along with the frame to form a covering layer. At the same time, the pipelines inside the frame are connected to the fire water source, and fire water is evenly sprayed to the covered area through the nozzles.

[0046] Compared with the prior art, the traditional fire extinguishing blanket can only cover a part of the vehicle and is easily lifted by the high-temperature air flow. However, in this solution, the whole vehicle is wrapped through a deployable closed structure, and the flame-retardant fabric and the frame are combined to form a stable covering layer, which can resist gas impact and maintain water film coverage. In the prior art, the spraying range of the fire hose is limited and it is difficult to continuously cool down. However, in this solution, the water flow forms a circulating infiltration on the vehicle surface through the enclosing structure, effectively suppressing re-ignition.

[0047] Through the above technical solutions, the present application can quickly form a sealed fire extinguishing space when the vehicle catches fire, block oxygen through all-round coverage and continuously cool down, solve the problems of incomplete coverage and easy interference by air flow of traditional fire extinguishing devices, and at the same time reduce the diffusion range of fire extinguishing water and avoid secondary damage in scenarios such as underground garages.

[0048] The present application further proposes that the first U-shaped frame is connected and cooperates with the telescopic water spray pipe 13 at the bottom of the new energy vehicle 8.

[0049] Among them, the telescopic spray water pipe refers to a fire hose that can extend or contract along the bottom direction of the vehicle. Specifically, it can be realized by using a metal hose with a folding structure, and the telescopic length is adjusted to adapt to the chassis height of different vehicle models. Connecting the first U-shaped skeleton to the telescopic spray water pipe means connecting the hollow structure of the U-shaped skeleton to the telescopic spray water pipe through a pipeline. For example, the waterway is connected through a flange interface or a quick joint, thereby ensuring that the water flow is transported from the inside of the skeleton to the bottom nozzle.

[0050] Specifically, the telescopic spray water pipe is installed in the bottom area of the new energy vehicle and receives the fire water source through the hollow pipeline of the first U-shaped skeleton during the fire extinguishing process. When the fire water nozzle is activated, the water flows through the internal channel of the first U-shaped skeleton into the telescopic spray water pipe and is evenly sprayed through the spray holes to the vehicle chassis and battery area. The telescopic spray water pipe can automatically adjust the extension length according to the vehicle chassis height to ensure that the water spraying coverage completely wraps the bottom of the vehicle. For example, the telescopic spray water pipe can be configured as a segmented folding structure, covering the longitudinal area of the chassis when unfolded and fitting the skeleton to save space when contracted.

[0051] Compared with the prior art, traditional fire extinguishing devices mainly rely on external spraying or top covering, and it is difficult to directly cover the vehicle chassis and battery compartment area, resulting in a risk of re-ignition. This solution connects the telescopic spray water pipe to directly transport the fire extinguishing water source to the key fire starting parts at the bottom of the vehicle, solves the problem of fire extinguishing blind areas caused by occlusion or spraying angle limitations in the traditional method, and at the same time reduces the secondary damage to the surrounding area caused by water flow diffusion.

[0052] Through the above technical solutions, this application realizes the efficient extinguishing of the fire source at the bottom of the new energy vehicle, quickly reduces the battery temperature by directional water spraying, and suppresses the possibility of re-ignition. In addition, the telescopic structure can adapt to the chassis height differences of different vehicle models, ensure that the water spraying coverage is accurately controllable, reduce the consumption of fire water and reduce the impact on the surrounding environment.

[0053] This application further proposes a rotating and telescopic fire extinguishing cover device, which includes a third U-shaped fire extinguishing cover that can rotate up to 90 degrees relative to each other. The third U-shaped fire extinguishing cover includes two or more third U-shaped skeletons 23 with hollow pipe structures. Both ends of the third U-shaped skeleton 23 are provided with third water inlets. The third water inlets are connected to the third hinge 17 through a connecting pipe provided with a water inlet interface. The fourth U-shaped skeleton on the side of the third hinge 17 in contact with the ground is connected to the third fire water joint 19. The outer pipeline of the fourth U-shaped skeleton is connected to the U-shaped seventh water blocking fence 18, and the inner pipeline of the fourth U-shaped skeleton is connected to the U-shaped eighth water blocking fence 22. The third hinge 17 connects two or more third U-shaped skeletons 23 and is connected to each other through a pipeline. The outermost third U-shaped skeleton 23 is connected to cooperate with the wall 14 of the vehicle parking space.

[0054] Among them, the third U-shaped framework refers to a U-shaped support structure composed of hollow pipes, which can be specifically implemented using aluminum alloy or carbon fiber materials, and fire-fighting water is transported through the internal channels to form a spray coverage. The third water inlet refers to the fluid inlet provided at both ends of the framework, which is docked with an external water source through a connecting pipe to achieve rapid water supply. The third hinge refers to a connecting component with a rotating function, which can be made of high-temperature resistant metal materials to control the rotation and deployment or retraction of the third U-shaped framework. The U-shaped third water-blocking fence and the U-shaped fourth water-blocking fence respectively refer to flexible water-blocking structures arranged on the outer and inner sides of the framework, which are used to block the spread of water flow and form a water storage area during the fire extinguishing process. The wall connection structure refers to the installation method of fixing the edge framework to the parking space wall through bolts or buckles, ensuring the stability when the fire extinguishing cover device is deployed, and the convenience to quickly extinguish the fire on the car in the parking space.

[0055] Specifically, when a fire breaks out in a new energy vehicle, the third U-shaped fire extinguishing cover unfolds from the wall position, and multiple third U-shaped frameworks form a semi-circular surrounding structure to cover the vehicle during the rotation process. Fire-fighting water enters the internal pipes of the framework through the third water inlet and is evenly sprayed on the vehicle surface by the nozzles. The U-shaped third water-blocking fence on the outside and the U-shaped fourth water-blocking fence on the inside work together to form an annular water storage area around the vehicle, and the vehicle bottom is soaked through continuous water storage. The third U-shaped framework at the edge provides support force through the wall fixing points to ensure the stability of the structure after deployment. The pipeline connection design between multiple frameworks enables the water flow to be evenly distributed to each nozzle, avoiding insufficient water supply in local areas.

[0056] Through the above technical solutions, the present application can achieve rapid three-dimensional fire fighting for new energy vehicle fires. The rotating deployment structure adapts to narrow parking spaces. The water storage fence design controls the scope of water stain impact while ensuring the fire extinguishing effect. The framework system with connected pipelines takes into account both structural strength and water flow distribution efficiency. The wall fixing method improves the anti-impact stability of the third U-shaped framework after deployment and can be reused.

[0057] The present application further proposes that the third U-shaped fire extinguishing cover is divided into a retracted state and a deployed state. In the retracted state, two or more third U-shaped frameworks 23 are attached to the wall 14. In the deployed state, two or more third U-shaped frameworks 23 cooperate with the second flame retardant fabric 15 on the outer periphery to form a closed semi-circular structure around the new energy vehicle 8 and around the top of the new energy vehicle 8. A second skylight 20 is provided on the side of the second flame retardant fabric 15, and a second covering curtain 21 is provided outside the second skylight 20.

[0058] Among them, the third U-shaped skeleton refers to a U-shaped support structure composed of hollow pipes, which can be specifically implemented using aluminum alloy or carbon fiber materials. The second flame-retardant fabric refers to a fireproof material covering the outside of the skeleton, used to isolate the flame and guide the water flow. The second skylight refers to a ventilation opening opened on the side of the flame-retardant fabric, used to balance the internal air pressure. The second covering curtain refers to a flexible curtain covering the outside of the second skylight, used to adjust the ventilation volume. The wall connection refers to fixing the outermost third U-shaped skeleton on the parking space wall, which can be specifically implemented using expansion bolts or welded brackets to ensure that the deployment direction is controllable.

[0059] Specifically, when a fire breaks out in a new energy vehicle, the third U-shaped fire extinguishing cover switches from the wall-retracted state to the deployed state. Multiple third U-shaped skeletons extend outwards and drive the second flame-retardant fabric to form a semi-circular surrounding structure. The second flame-retardant fabric completely covers the top and both sides of the vehicle, and at the same time, the bottom accumulates fire-fighting water through a water-blocking fence to form an immersion environment. After the second skylight is deployed, it adjusts the opening and closing through the second covering curtain, which can not only release the high-temperature gas to avoid excessive internal pressure, but also maintain the airtightness required for fire extinguishing.

[0060] Compared with the prior art, the traditional fire extinguishing blanket is easily blown open by the fire due to the lack of a fixed support structure and cannot form a three-dimensional enclosure. In this solution, through wall anchoring and skeleton linkage deployment, a full-range coverage of the vehicle is achieved. In the prior art, the direct spraying of fire-fighting water is prone to coverage blind spots due to angle limitations. In this solution, through a semi-closed structure combined with bottom water storage, the water flow evenly wraps the vehicle body, reducing the fire extinguishing dead angle.

[0061] Through the above technical solution, this application solves the problems of incomplete coverage and high-temperature gas lifting the fire extinguishing device during the fire extinguishing process of new energy vehicles. Through a semi-closed structure, a three-dimensional isolation space is quickly formed, and combined with water storage and immersion, the re-ignition is effectively suppressed. At the same time, the wall-fixed design improves the reliability of the device deployment and reduces external environmental interference.

[0062] This application further proposes that a cylinder 16 is connected between the outermost third U-shaped skeleton 23 and the fourth U-shaped skeleton, and the cylinder 16 controls the retracted state or the deployed state of the third U-shaped fire extinguishing cover. The cylinder refers to a linear actuator that drives the movement of the third U-shaped fire extinguishing cover. For example, a telescopic cylinder driven by air pressure or hydraulic pressure is used to adjust the deployment range of the skeleton by controlling the telescopic length of the cylinder.

[0063] Specifically, in the retracted state, multiple third U-shaped fire extinguishing covers are attached to the wall to reduce the occupied space; when triggered to extinguish the fire, the cylinder pushes the third U-shaped frame to expand outwards, so that the frame forms a semi-circular surrounding structure around the new energy vehicle. During this process, the third water inlet inputs fire-fighting water into the hollow pipeline through the connecting pipe, and the water flows through the U-shaped third water-blocking fence and the U-shaped fourth water-blocking fence to form a water storage barrier. At the same time, the nozzles spray fire extinguishing medium from the inside of the frame towards the vehicle. The wall connection design keeps the expanded frame stable and avoids structural deviation caused by water flow impact or high temperature.

[0064] Compared with the prior art, existing fire extinguishing devices mostly rely on manual laying of fire extinguishing covers. The deployment speed is limited by the reaction time of the operator, and they lack fixed support and are easily washed away by water flow. This solution realizes automatic deployment through cylinder drive, combines with the wall fixing method to significantly improve the structural stability. At the same time, the cooperation between the hollow frame and the water-blocking fence can accurately control the water storage range and reduce the impact of fire-fighting water diffusion on the surrounding environment.

[0065] Through the above technical solutions, this application solves the problems of low deployment efficiency and poor stability of traditional fire extinguishing covers. By combining mechanical drive and wall fixing, it ensures that the fire extinguishing cover quickly forms a closed fire extinguishing space under high temperature or water flow impact, reduces the risk of re-ignition and water resource waste.

[0066] The present application further proposes a horizontally telescopic fire extinguishing hood device, which includes a horizontally telescopic fourth U-shaped fire extinguishing hood. The fourth U-shaped fire extinguishing hood includes more than two fifth U-shaped skeletons 35 with a hollow pipe structure. Between adjacent two fifth U-shaped skeletons 35, there are a first connecting pipe 36 and a second connecting pipe 37 that cross each other. The intersection of the first connecting pipe 36 and the second connecting pipe 37 is interconnected through a third connecting pipe 38. Both the first connecting pipe 36 and the second connecting pipe 37 are connected to their respective fifth U-shaped skeletons 35 through connecting pipes. The outermost fifth U-shaped skeleton 35 of the entire fourth U-shaped fire extinguishing hood is connected with a horizontal pipe 33. The horizontal pipe 33 is connected to a third fire water joint 34 and a towing hook 32. At the bottom of the fifth U-shaped skeleton 35, there are rollers 40 and water outlets 39. The water outlets 39 are respectively connected to a U-shaped fifth water blocking fence 30 located outside the fifth U-shaped skeleton 35 and a U-shaped sixth water blocking fence 41 located inside the fifth U-shaped skeleton 35. The present application further proposes that the fourth U-shaped fire extinguishing hood is divided into a retracted state and an unfolded state. In the retracted state, more than two fifth U-shaped skeletons 35 are attached to each other. In the unfolded state, more than two fifth U-shaped skeletons 35 cooperate with the third flame-retardant fabric 31 on the outer periphery to surround each other to form a relatively enclosed water tank structure around the new energy vehicle 8 and on top of the new energy vehicle 8. On the side of the third flame-retardant fabric 15, there is a third skylight 28. Outside the third skylight 28, there is a third covering curtain 27. The third flame-retardant fabric 15 is provided with a movable covering curtain 29 in the direction opposite to the unfolding direction of the fourth U-shaped fire extinguishing hood. The movable covering curtain 29 is hermetically connected to the U-shaped fifth water blocking fence 30 after being unfolded.

[0067] Among them, the horizontally telescopic fourth U-shaped fire extinguishing hood refers to a hood structure whose horizontal dimension can be adjusted by folding or unfolding. Specifically, a combination mechanism of a slide rail and a connecting rod can be used to wrap the new energy vehicle to form a sealed space. The hollow pipe structure of the fifth U-shaped skeleton refers to a metal or composite material frame with an internal flow channel. Specifically, an aluminum alloy extrusion molding process can be used for manufacturing, which is used to convey fire water and support the flame-retardant fabric. The mutually crossed first connecting pipe and second connecting pipe refer to two groups of pipelines arranged in an X shape. Specifically, an articulated connector can be used to achieve communication at the intersection, which is used to maintain the skeleton spacing and form a water flow path. The third connecting pipe refers to the vertical connecting pipe at the intersection point. The horizontal pipe refers to a water delivery pipe extending along the unfolding direction, which is used to input fire water into the skeleton. The roller refers to a moving part installed at the bottom of the skeleton. Specifically, a universal wheel with a braking function can be used to facilitate the sliding of the fire extinguishing hood along the ground when it is unfolded or retracted. The U-shaped fifth water blocking fence and the U-shaped sixth water blocking fence refer to flexible water blocking structures arranged on the inner and outer sides of the skeleton, which are used to limit the diffusion range of fire water and form a water storage area.

[0068] Specifically, in the retracted state, multiple fifth U-shaped skeletons are tightly stacked through the folding action of the cross-connecting pipes. At this time, the towing hook can be fixed on the trailer to quickly move to the fire extinguishing point. When the fire extinguishing operation is triggered, the external fire water source injects water into the horizontal pipe through the third fire water joint. The water flows through the cross-connecting pipes and the third connecting pipes and is distributed into each fifth U-shaped skeleton. Multiple fifth U-shaped skeletons manually unfold, and the third flame-retardant fabric expands with the skeletons to form a box structure that wraps the new energy vehicle. After the unfolding is completed, the water outlet discharges fire water to the inner and outer water-blocking fences, forming a continuous water seal layer at the bottom of the cover body. At the same time, the third covering curtain of the third skylight at the top can be manually opened to release high-temperature gas, and the movable covering curtain is closed with the edge of the water-blocking fence through magnetic snap fasteners.

[0069] Compared with the prior art, the traditional fire blanket can only be covered in a single layer and is easily lifted by the hot air flow. However, in this solution, the rigid support structure formed by the multi-skeleton linkage can resist the internal pressure fluctuation. The cross-connecting pipe design not only ensures the uniform distribution of water flow but also maintains the unfolding stability. Compared with the direct water spraying fire extinguishing method, the sealed water tank structure enables the fire water to circulate and stay in the target area, reducing both the total water consumption and prolonging the soaking time. The horizontally telescopic fire cover device is particularly suitable for extinguishing fires in large new energy vehicles, such as buses.

[0070] Through the above technical solutions, the present application can quickly form a three-dimensional water seal layer that wraps the new energy vehicle. The combination structure of the cross-connecting pipes and the multi-skeletons ensures the stable and reliable unfolding process. The coordinated action of the water-blocking fence and the water outlet enables the water flow to be directionally accumulated to form a local soaking environment.

[0071] Through the above technical solutions, the present application can quickly construct a directional sealed fire extinguishing space, complete the three-dimensional wrapping of the vehicle within 30 seconds, and synchronously suppress the fire by using the water curtain isolation and asphyxiation effects. The flame-retardant fabric cooperates with the skylight structure to balance the internal and external air pressure differences, preventing the traditional fire blanket from being lifted by the high-temperature air flow and becoming ineffective. The automatic sealing design of the movable covering curtain and the water-blocking fence effectively prevents the water flow from overflowing and damaging the surrounding vehicles, and is particularly suitable for directional fire extinguishing operations in narrow spaces such as underground garages.

[0072] The above has made a detailed description of the preferred embodiments of this patent. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of this patent.

Claims

1. A rapid fire extinguishing device for new energy vehicles, characterized in that: An extinguishing hood device including horizontal telescoping or rotary telescoping, the extinguishing hood device includes a flame-retardant fabric, and the inner side of the flame-retardant fabric is covered and connected with a horizontal telescoping skeleton or a rotary telescoping skeleton. Both the horizontal telescoping skeleton and the rotary telescoping skeleton are hollow pipe structures, and the hollow pipe structures are connected to a fire sprinkler head (12) and a fire water connector (4). A pressure relief skylight (6) is provided on the surface of the flame-retardant fabric (1), and a covering curtain (5) is provided outside the pressure relief skylight (6). A water blocking fence surrounding the new energy vehicle is provided at the bottom of the extinguishing hood device, and the fire water sprayed by the fire sprinkler head accumulates between the water blocking fence and the new energy vehicle to form a pool to soak the new energy vehicle (8).

2. The rapid fire extinguishing device for a new energy vehicle according to claim 1, wherein: The rotary telescoping extinguishing hood device includes a first U-shaped extinguishing hood and a second U-shaped extinguishing hood that can rotate up to 180 degrees relative to each other. The first U-shaped extinguishing hood includes two or more U-shaped skeletons (9) with hollow pipe structures. Both ends of the U-shaped skeleton are provided with water inlets, and the water inlets are connected to the first hinge (2) through a connecting pipe (24) provided with a water inlet interface (25). The first U-shaped skeleton on the side of the first hinge (2) in contact with the ground is connected to the fire water connector (4). The outer pipeline of the first U-shaped skeleton is communicated with the U-shaped first water blocking fence (3), and the inner pipeline of the first U-shaped skeleton is communicated with the U-shaped second water blocking fence (7). The second U-shaped extinguishing hood includes two or more U-shaped skeletons (9) with hollow pipe structures. Both ends of the U-shaped skeleton are provided with water inlets, and the water inlets are connected to the second hinge (90) through a connecting pipe (24) provided with a water inlet interface (25). The outer pipeline of the second U-shaped skeleton on the side of the second hinge (90) in contact with the ground is communicated with the U-shaped third water blocking fence (11), and the inner pipeline of the second U-shaped skeleton is communicated with the U-shaped fourth water blocking fence (10). Two or more U-shaped skeletons (9) connected by the first hinge (2) and the second hinge (90) are communicated with each other through pipelines.

3. The rapid fire extinguishing device for a new energy vehicle according to claim 2, characterized in that: The first U-shaped extinguishing hood and the second U-shaped extinguishing hood are in a retracted state and an unfolded state relative to each other. In the retracted state, the first U-shaped extinguishing hood and the second U-shaped extinguishing hood are stacked on top of each other. In the unfolded state, the first U-shaped extinguishing hood and the second U-shaped extinguishing hood surround each other to form a closed circular structure around the new energy vehicle (8) and the top of the new energy vehicle (8).

4. The rapid fire extinguishing device for a new energy vehicle according to claim 2, wherein: The first U-shaped skeleton is connected and cooperated with the telescopic water spray pipe (13) at the bottom of the new energy vehicle (8).

5. The rapid fire extinguishing device for a new energy vehicle according to claim 1, wherein: The described rotary telescopic fire extinguishing cover device includes a third U-shaped fire extinguishing cover that can rotate up to 90 degrees relative to each other. The third U-shaped fire extinguishing cover includes two or more third U-shaped skeletons (23) with a hollow pipe structure. Both ends of the third U-shaped skeleton (23) are provided with third water inlets. The third water inlets are connected to the third hinge (17) through a connecting pipe provided with a water inlet interface. The fourth U-shaped skeleton on the side where the third hinge (17) contacts the ground is connected to the second fire water joint (19). The outer pipeline of the fourth U-shaped skeleton communicates with the U-shaped seventh water blocking fence (18), and the inner pipeline of the fourth U-shaped skeleton communicates with the U-shaped eighth water blocking fence (22). The third hinge (17) connects two or more third U-shaped skeletons (23) and is interconnected through pipelines. The outermost third U-shaped skeleton (23) is connected to and cooperates with the wall surface (14) of the vehicle parking space for new energy vehicles.

6. The rapid fire extinguishing device for a new energy vehicle according to claim 5, characterized in that: The described third U-shaped fire extinguishing cover is divided into a retracted state and an unfolded state. In the retracted state, two or more third U-shaped skeletons (23) are attached to the wall surface (14). In the unfolded state, two or more third U-shaped skeletons (23) cooperate with the second flame retardant fabric (15) on the outer periphery and surround each other to form a closed semi-circular structure surrounding the new energy vehicle (8) and the top of the new energy vehicle (8). The second flame retardant fabric (15) is provided with a second skylight (20) on the side, and a second covering curtain (21) is provided outside the second skylight (20).

7. The rapid fire extinguishing device for a new energy vehicle according to claim 6, characterized in that: A cylinder (16) is connected between the outermost third U-shaped skeleton (23) and the fourth U-shaped skeleton, and the cylinder (16) controls the retracted state or the unfolded state of the third U-shaped fire extinguishing cover.

8. The rapid fire extinguishing device for a new energy vehicle according to claim 1, characterized in that: The described horizontally telescopic fire extinguishing cover device includes a horizontally telescopic fourth U-shaped fire extinguishing cover. The fourth U-shaped fire extinguishing cover includes two or more fifth U-shaped skeletons (35) with a hollow pipe structure. Adjacent two fifth U-shaped skeletons (35) are connected through the first connecting pipe (36) and the second connecting pipe (37) that cross each other. The intersection of the first connecting pipe (36) and the second connecting pipe (37) is interconnected through the third connecting pipe (38). Both the first connecting pipe (36) and the second connecting pipe (37) are connected to their respective fifth U-shaped skeletons (35) through connecting pipes. The outermost fifth U-shaped skeleton (35) of the entire fourth U-shaped fire extinguishing cover is connected with a horizontal pipe (33), and the horizontal pipe (33) is connected to the third fire water joint (34) and the towing hook (32). The bottom of the fifth U-shaped skeleton (35) is provided with rollers (40) and water outlets (39). The water outlets (39) communicate with the U-shaped fifth water blocking fence (30) located outside the fifth U-shaped skeleton (35) and the U-shaped sixth water blocking fence (41) located inside the fifth U-shaped skeleton (35) respectively.

9. The rapid fire extinguishing device for a new energy vehicle according to claim 8, characterized in that: The fourth U-shaped fire extinguishing cover is divided into a retracted state and an unfolded state. In the retracted state, two or more fifth U-shaped frameworks (35) are mutually attached. In the unfolded state, two or more fifth U-shaped frameworks (35) cooperate with the third flame-retardant fabric (31) on the outer periphery to mutually surround and form a relatively enclosed water tank structure around the new energy vehicle (8) and on top of the new energy vehicle (8). A third skylight (28) is provided on the side of the third flame-retardant fabric (31), and a third covering curtain (27) is provided outside the third skylight (28). An active covering curtain (29) is provided on the third flame-retardant fabric (31) in the direction opposite to the unfolding direction of the fourth U-shaped fire extinguishing cover, and the active covering curtain (29) is hermetically connected to the U-shaped fifth water-blocking fence (30) after being unfolded.

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