Horizontal telescopic new energy vehicle rapid fire extinguishing device

Abstract

A horizontally retractable rapid fire extinguishing device for new energy vehicles includes a horizontally retractable fire extinguishing cover. The fire extinguishing cover comprises a flame-retardant fabric, the inner side of which is covered and connected to a horizontally retractable frame. The horizontally retractable frame is a hollow pipe structure, connecting fire sprinklers and fire water connectors. A pressure relief sunroof is provided on the surface of the flame-retardant fabric, and a cover curtain is provided on the outer side of the pressure relief sunroof. A water-blocking barrier surrounds the bottom of the fire extinguishing cover, accumulating fire water sprayed from the fire sprinklers between the water-blocking barrier and the new energy vehicle to form a water pool that submerges the vehicle. This invention achieves air isolation by quickly covering the entire vehicle with the fire extinguishing cover in a portable manner. The horizontally retractable frame then sprays fire extinguishing water from multiple angles, and the water-blocking barrier provides immersion fire extinguishing performance. Finally, the pressure relief sunroof prevents the risk of explosion due to gas accumulation.

Description

Technical Field

[0001] This utility model belongs to the field of fire extinguishing equipment technology, and specifically relates to a horizontally telescopic rapid fire extinguishing device for new energy vehicles. Background Technology

[0002] As a crucial component of green transportation, new energy vehicles' lithium-ion battery systems are characterized by rapid ignition, high combustion temperatures, and a significant risk of reignition during thermal runaway. Traditional fire extinguishing methods face multiple technical bottlenecks: conventional fire blankets, lacking rigid support structures, are easily lifted by the high-pressure gases generated by battery thermal runaway, leading to extinguishing failure; fire hoses have blind spots, hindering rapid, three-dimensional fire suppression; open sprinkler systems consume large amounts of water, easily causing secondary flooding in enclosed spaces such as underground parking lots. Existing technologies, such as coverage-type fire extinguishing devices, generally suffer from poor structural stability, low extinguishing efficiency, and insufficient water resource utilization, failing to meet the unique fire extinguishing needs of new energy vehicles. Particularly for the special structure of battery packs located in the chassis, conventional fire extinguishing methods struggle to provide effective three-dimensional protection. Furthermore, existing devices lack adaptability to different parking scenarios, making rapid deployment difficult in narrow parking spaces or concentrated parking areas. How to construct a dedicated fire extinguishing system for new energy vehicles that combines rapid response, comprehensive coverage, and efficient water resource utilization has become a pressing technical challenge in this field. Existing technologies urgently need improvement to address these issues. How to quickly and controllably extinguish fires in new energy vehicles is a subject of research for those skilled in the art. Utility Model Content

[0003] This utility model provides a horizontally telescopic rapid fire extinguishing device for new energy vehicles, which has the advantages of quickly forming a closed fire extinguishing space, improving fire extinguishing efficiency through immersion fire extinguishing, preventing battery reignition, and adapting to different parking scenarios.

[0004] A horizontally retractable rapid fire extinguishing device for new energy vehicles includes a horizontally retractable fire extinguishing cover device. The horizontally retractable fire extinguishing cover device includes a flame-retardant fabric, the inner side of which is covered and connected to a horizontally retractable frame. The horizontally retractable frame is a hollow pipe structure, which connects to fire sprinklers and fire water connectors. A pressure relief skylight is provided on the surface of the flame-retardant fabric, and a cover curtain is provided on the outer side of the pressure relief skylight. A water-blocking fence is provided at the bottom of the fire extinguishing cover device to surround the new energy vehicle. The water-blocking fence and the new energy vehicle accumulate fire water sprayed from the fire sprinklers to form a water pool that immerses the new energy vehicle.

[0005] The horizontal telescopic frame includes a horizontally telescopic U-shaped fire extinguishing cover. Each U-shaped fire extinguishing cover comprises two or more U-shaped frames with hollow pipe structures. Adjacent U-shaped frames are connected by intersecting first and second connecting pipes. The intersection of the first and second connecting pipes is connected to each other by a third connecting pipe. Both the first and second connecting pipes are connected to their respective U-shaped frames via connecting pipes. The outermost U-shaped frame of the entire U-shaped fire extinguishing cover is connected to a horizontal pipe, which connects to a fire water connector and a towing hook. The bottom of the U-shaped frame is equipped with rollers and a water outlet, which connects to a first U-shaped water-blocking barrier located on the outer side of the U-shaped frame and a second U-shaped water-blocking barrier located on the inner side of the U-shaped frame. The horizontal telescopic frame is equivalent to two or more U-shaped frames with hollow pipe structures.

[0006] The U-shaped fire extinguishing cover has a folded state and an unfolded state. In the folded state, two or more U-shaped frames fit together. In the unfolded state, two or more U-shaped frames, together with the outer flame-retardant fabric, surround each other to form a relatively closed water tank structure around the new energy vehicle and the top of the new energy vehicle. The flame-retardant fabric has a pressure relief sunroof on the side, and a cover curtain is provided on the outside of the pressure relief sunroof. The flame-retardant fabric has a movable cover curtain in the unfolded direction of the U-shaped fire extinguishing cover. When the movable cover curtain is unfolded, it is sealed and connected to the first U-shaped water-blocking fence.

[0007] This application provides a horizontally telescopic rapid fire extinguishing device for new energy vehicles. A hollow pipe frame connects to fire nozzles to form a three-dimensional water curtain. A bottom water-blocking barrier accumulates fire-fighting water to form a soaking pool, quickly covering the new energy vehicle and establishing a closed fire extinguishing space. This device has advantages such as suppressing battery thermal runaway, preventing reignition, and improving water resource utilization. Furthermore, the horizontally telescopic fire extinguishing hood device, while portable, quickly covers the entire vehicle to achieve air isolation. Then, the horizontally telescopic frame sprays fire extinguishing water at multiple angles, and the water-blocking barrier provides immersion fire extinguishing performance for the vehicle. Finally, a pressure relief sunroof prevents the risk of explosion caused by gas accumulation. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings:

[0009] Figure 1 This is a three-dimensional structural diagram of a horizontally telescopic rapid fire extinguishing device for new energy vehicles according to this utility model.

[0010] Figure 2 This is a three-dimensional structural diagram of the U-shaped skeleton in this utility model;

[0011] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0012] Figure 4 for Figure 2Enlarged structural diagram at point B. Detailed Implementation

[0013] The following is in conjunction with the appendix Figure 1-4 The specific implementation method further illustrates the technical solution of this patent.

[0014] In existing technologies, fires caused by battery thermal runaway in new energy vehicles are characterized by rapid spread and a high risk of reignition. Traditional fire blankets are easily lifted by expanding gases in high-temperature environments, leading to insulation failure. Fire hoses are limited by their spray angle, making it difficult to cover the underside of the vehicle and concealed fire sources inside. Excessive water usage not only affects the structural safety of underground spaces but also causes secondary damage to surrounding vehicles. In one instance, an electric vehicle spontaneously combusted in an underground parking lot; because conventional firefighting equipment could not effectively control the fire vertically across the battery pack, several adjacent vehicles were damaged.

[0015] To address these issues, the R&D team recognized that fire control required simultaneous fulfillment of three requirements: three-dimensional coverage, continuous cooling, and water volume control. Initial attempts involved integrating a sprinkler system within the fire blanket, but the flexible material was found to easily deform and collapse at high temperatures. The team then shifted its design focus to combining a rigid support structure with a flexible flame-retardant layer. By analyzing the thermal airflow patterns during vehicle combustion, a pressure balancing mechanism was proposed at the top of the covering device to prevent internal pressure buildup. To address the issue of secondary reignition, an adjustable-height water-filled enclosure system was introduced to immerse the vehicle in water for fire suppression, primarily targeting the battery. This rapid cooling prevents deflagration and quickly controls the fire.

[0016] This application proposes a horizontally telescopic rapid fire extinguishing device for new energy vehicles, including a horizontally telescopic fire extinguishing cover device. The fire extinguishing cover device includes a flame-retardant fabric, the inner side of which is covered and connected to a horizontally telescopic frame. The horizontally telescopic frame is a hollow pipe structure, which connects to a fire sprinkler head 12 and a fire water connector 34. The flame-retardant fabric 31 has a pressure relief skylight 28 on its surface, and a cover curtain 27 is provided on the outer side of the pressure relief skylight 28. The bottom of the fire extinguishing cover device is provided with a water-blocking fence surrounding the new energy vehicle. The water-blocking fence and the new energy vehicle accumulate fire water sprayed from the fire sprinkler head to form a water pool that soaks the new energy vehicle.

[0017] This application further proposes a horizontally telescopic frame including a horizontally telescopic U-shaped fire extinguishing cover. The U-shaped fire extinguishing cover includes two or more U-shaped frames 35 with hollow pipe structures. Adjacent U-shaped frames 35 are connected by intersecting first connecting pipes 36 and second connecting pipes 37. The intersection of the first connecting pipes 36 and second connecting pipes 37 is connected to each other by a third connecting pipe 38. Both the first connecting pipes 36 and second connecting pipes 37 are connected to their respective U-shaped frames 35 via connecting pipes. The outermost U-shaped frame 35 of the entire U-shaped fire extinguishing cover is connected to a horizontal pipe 33, which connects to a fire water connector 34 and a towing hook 32. The bottom of the U-shaped frame 35 is equipped with rollers 40 and water outlets 39. The water outlets 39 are respectively connected to a first U-shaped water-blocking barrier 30 located outside the U-shaped frame 35 and a second U-shaped water-blocking barrier 41 located inside the U-shaped frame 35. The water-blocking barriers are composed of water-filled rubber barriers, forming an annular water-retaining wall after filling with water.

[0018] This application further proposes that the U-shaped fire extinguishing cover is divided into a folded state and an unfolded state. In the folded state, two or more U-shaped frames 35 are closely fitted together. In the unfolded state, two or more U-shaped frames 35, together with the outer flame-retardant fabric 31, surround each other to form a relatively closed water tank structure around the new energy vehicle and the top of the new energy vehicle. The flame-retardant fabric 31 is provided with a pressure relief skylight 28 on the side. A cover curtain 27 is provided on the outside of the pressure relief skylight 28. The flame-retardant fabric 31 is provided with a movable cover curtain 29 in the unfolding direction of the U-shaped fire extinguishing cover. The movable cover curtain 29 is sealed and connected to the U-shaped first water-blocking fence 30 after unfolding.

[0019] The horizontally retractable U-shaped fire extinguishing cover refers to a cover structure that adjusts its horizontal dimensions through folding or unfolding. This can be achieved using a combination of sliding rails and linkages, used to enclose new energy vehicles and create a sealed space. The hollow pipe structure of the U-shaped frame refers to a metal or composite material frame with internal flow channels, specifically manufactured using aluminum alloy extrusion molding, used to transport fire-fighting water and support the flame-retardant fabric. The intersecting first and second connecting pipes refer to two sets of pipes arranged in an X-shape, specifically using hinged connectors to connect at the intersection, maintaining the frame spacing and forming a water flow path. The third connecting pipe is the vertical connecting pipe at the intersection point. The horizontal pipe refers to the water supply pipe extending along the unfolding direction, used to input fire-fighting water into the frame. The rollers are moving parts installed at the bottom of the frame, specifically using universal wheels with braking function, facilitating the sliding of the fire extinguishing cover along the ground when unfolding or retracting. The U-shaped first and second water-blocking barriers are flexible water-retaining structures arranged inside and outside the frame, used to limit the spread of fire-fighting water and form a water storage area.

[0020] Specifically, in the retracted state, multiple U-shaped frames are tightly overlapped by the folding action of the cross-connecting pipes. At this time, the towing hook can be fixed to the trailer for rapid movement to the fire extinguishing point. When the fire extinguishing operation is triggered, external fire water supply is injected into the horizontal pipe through the fire water connector. The water flows through the cross-connecting pipe and the third connecting pipe and is distributed to each U-shaped frame. Multiple U-shaped frames are manually unfolded, and the flame-retardant fabric expands with the frames to form a box structure that wraps around the new energy vehicle. After unfolding, 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 enclosure. At the same time, the cover curtain of the top skylight can be manually opened to release high-temperature gas, and the movable cover curtain is closed with the edge of the water-blocking fence by magnetic fasteners.

[0021] Compared to existing technologies, traditional fire blankets can only provide a single layer of coverage and are easily torn off by hot air currents. This solution, however, utilizes a rigid support structure formed by multiple interconnected frames to resist internal pressure fluctuations. The cross-connecting pipe design ensures both uniform water distribution and stable deployment. Compared to direct water spraying, the closed-loop water tank structure allows fire water to circulate and remain within the target area, reducing total water consumption and extending soaking time. The horizontally retractable fire extinguishing cover is particularly suitable for extinguishing fires in large new energy vehicles, such as buses.

[0022] Through the above technical solution, this application can quickly form a three-dimensional water-sealing layer that wraps around new energy vehicles. The cross-connecting pipes and multi-framework combination structure ensure a stable and reliable unfolding process. The synergistic effect of the water-blocking fence and the water outlet enables the water flow to accumulate in a directional manner, forming a local immersion environment.

[0023] Through the above technical solution, this application can rapidly construct a directional, sealed fire extinguishing space, completing the three-dimensional wrapping of a vehicle within 30 seconds, and simultaneously suppressing the fire using water curtain isolation and suffocation effects. The flame-retardant fabric, combined with the sunroof structure, balances the internal and external air pressure difference, preventing traditional fire blankets from being lifted and rendered ineffective by high-temperature airflow. The automatic sealing design of the movable cover curtain and water-blocking barrier effectively prevents water overflow and damage to surrounding vehicles, making it particularly suitable for directional fire extinguishing operations in confined spaces such as underground parking garages.

[0024] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A horizontally retractable rapid fire extinguishing device for new energy vehicles, characterized in that: The device includes a horizontally telescopic fire extinguishing cover, which includes a flame-retardant fabric. The flame-retardant fabric is covered and connected to a horizontally telescopic frame. The horizontally telescopic frame is a hollow pipe structure. The hollow pipe structure is connected to a fire sprinkler head (12) and a fire water connector (34). The flame-retardant fabric (31) has a pressure relief skylight (28) on its surface. A cover curtain (27) is provided on the outside of the pressure relief skylight (28). The bottom of the fire extinguishing cover is provided with a water-blocking fence surrounding the new energy vehicle. The water-blocking fence and the new energy vehicle accumulate fire water sprayed from the fire sprinkler head to form a water pool that soaks the new energy vehicle.

2. The horizontally telescopic rapid fire extinguishing device for new energy vehicles according to claim 1, characterized in that: The horizontal telescopic frame includes a horizontally telescopic U-shaped fire extinguishing cover. The U-shaped fire extinguishing cover includes two or more U-shaped frames (35) with hollow pipe structures. Two adjacent U-shaped frames (35) are connected by a first connecting pipe (36) and a second connecting pipe (37) that intersect each other. The intersection of the first connecting pipe (36) and the second connecting pipe (37) is connected to each other by a third connecting pipe (38). The first connecting pipe (36) and the second connecting pipe (37) are both connected to their respective U-shaped frames (35) through connecting pipes. The outermost U-shaped frame (35) of the entire U-shaped fire extinguishing cover is connected to a horizontal pipe (33). The horizontal pipe (33) is connected to a fire water connector (34) and a towing hook (32). The bottom of the U-shaped frame (35) is provided with a roller (40) and a water outlet (39). The water outlet (39) is connected to the first U-shaped water barrier (30) located outside the U-shaped frame (35) and the second U-shaped water barrier (41) located inside the U-shaped frame (35).

3. The horizontally extendable rapid fire extinguishing device for new energy vehicles according to claim 1, characterized in that: The U-shaped fire extinguishing cover is divided into a folded state and an unfolded state. In the folded state, two or more U-shaped frames (35) are fitted together. In the unfolded state, two or more U-shaped frames (35) are combined with the outer flame-retardant fabric (31) to form a relatively closed water tank structure around the new energy vehicle and the top of the new energy vehicle. The flame-retardant fabric (31) is provided with a pressure relief skylight (28) on the side. A cover curtain (27) is provided on the outside of the pressure relief skylight (28). The flame-retardant fabric (31) is provided with a movable cover curtain (29) in the unfolding direction of the U-shaped fire extinguishing cover. The movable cover curtain (29) is sealed and connected to the first U-shaped water-blocking fence (30) after unfolding.

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