Assembled new energy automobile battery pack cooling and fire extinguishing device

Abstract

The utility model discloses a split mounting type new energy automobile battery pack cooling and fire extinguishing device and belongs to the technical field of fire fighting equipment. Comprising a chassis fire extinguishing mechanism arranged on the horizontal ground in a sliding mode, a connection spraying pipe detachably connected and communicated with the chassis fire extinguishing mechanism, and an extension pipe detachably connected and communicated with the connection spraying pipe. The vertical spraying pipe is detachably connected and communicated with the extension pipe; the optional spraying pipe is detachably connected and communicated with the vertical spraying pipe; the chassis fire extinguishing mechanism comprises a transverse spraying pipe which is detachably connected and communicated with the connecting spraying pipe, and a group of longitudinal spraying pipes which are vertical to the transverse spraying pipe and are detachably connected and communicated with the transverse spraying pipe. The device has the advantages that the carrying difficulty is reduced, and local components can be selected and assembled for use according to field conditions; the environment temperature is reduced, so that firefighters can approach a fire scene to put the device, and the use safety is ensured; through assembly, the purpose of all-directional fire extinguishing of the new energy automobile can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to fire fighting equipment technical field, concretely relates to a kind of assembled new energy automobile battery pack cooling fire extinguishing device. BACKGROUND

[0002] With the development of science and technology, new energy vehicles gradually popular in people's life, battery pack is one of the indispensable components of new energy vehicles, battery pack provides the required power for the car and is usually installed in the middle of the car chassis position, but limited by battery technology, battery pack is impacted or in harsh working environment, once contact is bad, it is very likely to self-ignite. Firefighters found during the fire extinguishing process that direct water spray fire extinguishing on the vehicle body cannot effectively control the fire, and the only way to extinguish the fire and cool the battery pack is the most effective way. Since the battery pack is located below the chassis, it is difficult to directly aim at the target with a water cannon. Currently, some fire extinguishing devices for vehicle chassis have appeared in the industry, but these devices are generally large in size, making it difficult for operators to place the device in the vehicle bottom.

[0003] In the prior art, such as the "new energy vehicle chassis fire extinguishing device" provided by Chinese utility model patent authorized publication No. CN218739946U, and the "new energy vehicle chassis fire extinguishing device" disclosed by Chinese utility model patent authorized publication No. CN220309625U. Although both can effectively extinguish the fire of new energy vehicle chassis, there are still problems of large size, inconvenience to carry and difficulty for firefighters to place the device close to the fire scene during use.

[0004] In view of the above situation, it is necessary to design a cooling fire extinguishing device with simple structure, low cost and can be assembled and disassembled, which can extinguish the fire of battery pack close to vehicle chassis and form a water curtain to protect the safety of firefighters. For this reason, the applicant has made a useful design, and the technical solution to be introduced below is produced in this background. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of assembled new energy automobile battery pack cooling fire extinguishing device, it is helpful to improve device structure so that overall structure can be assembled and disassembled to reduce carrying difficulty and can select partial assembly to use according to on-site situation, it is beneficial to form water curtain to reduce the temperature of surrounding environment so that firefighters can place the device close to the fire scene.

[0006] The utility model discloses a kind of assembled new energy automobile battery pack cooling fire extinguishing devices, including one slidingly arranged on horizontal ground chassis fire extinguishing mechanism, one with chassis fire extinguishing mechanism detachable connection and intercommunication's link spray pipe, one with link spray pipe detachable connection and intercommunication's extension pipe, one with extension pipe detachable connection and intercommunication's vertical spray pipe and one with vertical spray pipe detachable connection and intercommunication's optional spray pipe, the chassis fire extinguishing mechanism includes one with link spray pipe detachable connection and intercommunication's transverse spray pipe, a group of vertical transverse spray pipe and with transverse spray pipe detachable connection and intercommunication's longitudinal spray pipe.

[0007] In one specific embodiment of the utility model, the transverse spray pipe is hollow and both ends are closed, the upper surface of the transverse spray pipe and along the length direction is distributed with a group of transverse spray pipe atomizing nozzles, the transverse spray pipe is spaced apart on the side towards the longitudinal spray pipe with a group of longitudinal spray pipe quick connectors, the lower part of both ends of the length direction of the transverse spray pipe is respectively installed with a transverse spray pipe pulley.

[0008] In another specific embodiment of the utility model, the transverse spray pipe is formed with a link spray pipe quick connector in the middle of the side towards the link spray pipe, the link spray pipe is hollow and both ends are through, one end of the length direction of the link spray pipe is formed with a link spray pipe quick connector that is quickly connected with the link spray pipe quick connector, the other end of the length direction of the link spray pipe is formed with an extension pipe quick connector, one end of the length direction of the extension pipe is formed with an extension pipe quick connector that is quickly connected with the extension pipe quick connector, and the upper surface of the end of the link spray pipe that is formed with the extension pipe quick connector is distributed with a group of link spray pipe atomizing nozzles along the length direction.

[0009] In still another specific embodiment of the utility model, the upper end of the vertical spray pipe is provided with a selected spray pipe quick connector socket; the selected spray pipe is provided with a selected spray pipe quick connector plug which is quickly connected with the selected spray pipe quick connector socket; the upper end of the vertical spray pipe is provided with a group of vertical spray pipe atomizing nozzles on the side facing the bottom disc fire extinguishing mechanism and along the height direction.

[0010] In still another specific embodiment of the utility model, the upper end of the vertical spray pipe is provided with a selected spray pipe quick connector socket; the selected spray pipe is provided with a selected spray pipe quick connector plug which is quickly connected with the selected spray pipe quick connector socket; the upper end of the vertical spray pipe is provided with a group of vertical spray pipe atomizing nozzles on the side facing the bottom disc fire extinguishing mechanism and along the height direction.

[0011] In still another specific embodiment of the utility model, the selected spray pipe is hollow and both ends are closed; the selected spray pipe is parallel to the connecting spray pipe and one end extends above the bottom disc fire extinguishing mechanism; the selected spray pipe is provided with a group of selected spray pipe atomizing nozzles on the lower surface of the end of the extension end and along the length direction; each selected spray pipe atomizing nozzle forms a downward fan-shaped spray area.

[0012] In still another specific embodiment of the utility model, the selected spray pipe is hollow and both ends are closed; the selected spray pipe is parallel to the connecting spray pipe and one end extends above the bottom disc fire extinguishing mechanism; the selected spray pipe is provided with a group of selected spray pipe atomizing nozzles on the lower surface of the end of the extension end and along the length direction; each selected spray pipe atomizing nozzle forms a downward fan-shaped spray area.

[0013] In still another specific embodiment of the utility model, the upper surface of the extension pipe is provided with a push plate; the push plate is provided with a buffer head; both sides of the extension pipe are respectively provided with a universal wheel; the universal wheel is fixed below one end of a universal wheel connecting plate; both sides of the extension pipe are respectively provided with a connecting lug corresponding to the position of the universal wheel; the other end of the universal wheel connecting plate is fixed with the corresponding connecting lug through a universal wheel connecting plate fixing screw.

[0014] In still another specific embodiment of the utility model, the two ends of the transverse spraying pipe are fixed with a pull ring on the side facing the connecting spraying pipe; the two sides of the connecting spraying pipe are respectively formed with a pair of connecting spraying pipe locking ears, which are respectively pulled tight by a connecting spraying pipe cable and the corresponding pull ring; the two sides of the extension pipe are respectively formed with a pair of extension pipe locking ears, which are respectively pulled tight by an extension pipe cable and the corresponding pull ring.

[0015] In still another specific embodiment of the utility model, the transverse spraying pipe, the longitudinal spraying pipe and the connecting spraying pipe are all upward fan-shaped spraying, and the vertical spraying pipe is fan-shaped spraying towards the side of the chassis fire extinguishing mechanism.

[0016] The utility model has the beneficial effects after adopting the above structure: first, the chassis fire extinguishing mechanism, the connecting spraying pipe, the extension pipe, the vertical spraying pipe and the optional spraying pipe can be assembled and disassembled, thus greatly reducing the carrying difficulty and enabling the on-site situation to be selected for assembling and using partial components; second, the connecting spraying pipe and the vertical spraying pipe cooperate to form a cross water curtain structure, thus greatly reducing the environmental temperature, enabling the firefighter to approach the fire site and put in the device, and ensuring the safety of use; third, through assembly, the fire extinguishing device can achieve the purpose of omnidirectional fire extinguishing of new energy vehicles. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of an embodiment of the utility model;

[0018] Figure 2 It is a structure schematic view of the optional spraying pipe of another embodiment of the utility model.

[0019] In the diagram: 1. Chassis fire extinguishing mechanism; 11. Horizontal sprinkler pipe; 111. Horizontal sprinkler pipe atomizing nozzle; 112. Longitudinal sprinkler pipe quick-connect plug; 113. Horizontal sprinkler pipe pulley; 114. Connecting sprinkler pipe quick-connect plug; 115. Pull ring; 12. Longitudinal sprinkler pipe; 121. Longitudinal sprinkler pipe atomizing nozzle; 122. Longitudinal sprinkler pipe quick-connect socket; 123. Connecting screw; 1231. Connecting screw screw; 124. Longitudinal sprinkler pipe pulley; 13. Connecting rod; 2. Connecting sprinkler pipe; 21. Connecting sprinkler pipe atomizing nozzle; 22. Connecting sprinkler pipe quick-connect socket; 23. Extension pipe quick-connect plug; 24. Connecting sprinkler pipe locking lug; 241. Connecting sprinkler pipe pull ring. 3. Extension tube; 31. Extension tube quick-connect socket; 32. Vertical sprinkler tube quick-connect socket; 33. Adapter quick-connect plug; 34. Connecting ear; 35. Caster wheel; 351. Caster wheel connecting plate; 352. Caster wheel connecting plate fixing screw; 36. Push plate; 361. Buffer head; 37. Extension tube locking ear; 371. Extension tube cable; 4. Vertical sprinkler tube; 41. Vertical sprinkler tube atomizing nozzle; 42. Optional sprinkler tube quick-connect socket; 43. Vertical sprinkler tube quick-connect plug; 5. Optional sprinkler tube; 51. Optional sprinkler tube atomizing nozzle; 52. Optional sprinkler tube quick-connect plug; 6. Adapter; 61. Adapter quick-connect socket; 62. Water hose connection plug. Detailed Implementation

[0020] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. However, the description of the embodiments is not a limitation on the technical solution. Any formal but not substantive changes made based on the concept of this utility model should be considered within the protection scope of this utility model.

[0021] In the following description, all directional or positional concepts involving up, down, left, right, front, and back are based on... Figure 1 The positions shown are for reference only and should not be construed as a particular limitation on the technical solutions provided by this utility model. Example 1

[0022] Please see Figure 1The utility model relates to a kind of assembled new energy automobile battery pack cooling fire extinguishing device, including one slidingly arranged on horizontal ground chassis fire extinguishing mechanism 1, one with chassis fire extinguishing mechanism 1 detachably connected and communicated link spray pipe 2, one with link spray pipe 2 detachably connected and communicated extension pipe 3, one with extension pipe 3 detachably connected and communicated vertical spray pipe 4 and one with vertical spray pipe 4 detachably connected and communicated optional spray pipe 5, the chassis fire extinguishing mechanism 1 described above includes one with link spray pipe 2 detachably connected and communicated transverse spray pipe 11, a set of vertical transverse spray pipe 11 and with transverse spray pipe 11 detachably connected and communicated longitudinal spray pipe 12, the transverse spray pipe 11 described above, longitudinal spray pipe 12, link spray pipe 2 are all upward fan-shaped spray, the vertical spray pipe 4 described above is the fan-shaped spray towards the side of chassis fire extinguishing mechanism 1.

[0023] In the embodiment, the transverse spray pipe 11 is hollow and both ends are closed, the upper surface of the transverse spray pipe 11 and along the length direction is distributed with a group of transverse spray pipe atomizing nozzles 111, the transverse spray pipe 11 is spaced on the side towards the longitudinal spray pipe 12 with a group of longitudinal spray pipe quick connector plugs 112, the lower part of both ends of the length direction of the transverse spray pipe 11 is respectively installed with a transverse spray pipe pulley 113; the longitudinal spray pipe 12 is hollow and one end is closed, the upper surface of the longitudinal spray pipe 12 and along the length direction is respectively distributed with a group of longitudinal spray pipe atomizing nozzles 121, the longitudinal spray pipe 12 is respectively formed with a longitudinal spray pipe quick connector socket 122 quickly plugged with the longitudinal spray pipe quick connector plug 112 on the side away from the closed end, the longitudinal spray pipe 12 is respectively fixed with a connecting screw 123 on the closed end, a connecting rod 13 is clamped between each connecting screw 123, the connecting screw 123 is respectively provided with a connecting screw screw 1231, the connecting screw screw 1231 is screwed and the connecting rod 13 is respectively pressed and fixed on the end of the closed end of the longitudinal spray pipe 12, the lower part of the closed end of the longitudinal spray pipe 12 is respectively provided with a longitudinal spray pipe pulley 124.

[0024] The middle part of the side of the transverse spray pipe 11 towards the link spray pipe 2 is formed with a link spray pipe quick connector plug 114; the link spray pipe 2 is hollow and both ends are through, one end of the length direction of the link spray pipe 2 is formed with a link spray pipe quick connector socket 22 quickly plugged with the link spray pipe quick connector plug 114, the other end of the length direction of the link spray pipe 2 is formed with an extension pipe quick connector plug 23; one end of the length direction of the extension pipe 3 is formed with an extension pipe quick connector socket 31 quickly plugged with the extension pipe quick connector plug 23, the upper surface of the end of the link spray pipe 2 formed with the extension pipe quick connector plug 23 is distributed with a group of link spray pipe atomizing nozzles 21 along the length direction.

[0025] In the embodiment, the extension pipe 3 is hollow and has two ends and a middle part penetrating through, the middle part of the extension pipe 3 is upwardly provided with a vertical spray pipe quick connector socket 32, the lower end of the vertical spray pipe 4 is provided with a vertical spray pipe quick connector plug 43 for quick connection with the vertical spray pipe quick connector socket 32, the extension pipe 3 is provided at the end away from the connection spray pipe 2 with an adapter quick connector plug 33, the adapter quick connector plug 33 is provided with an adapter 6, one end of the adapter 6 in the length direction is quick connected with the adapter quick connector plug 33 through an adapter quick connector socket 61, and the other end of the adapter 6 in the length direction is provided with a water hose connecting plug 62.

[0026] Further, the upper end of the vertical spray pipe 4 is provided with a selection spray pipe quick connector socket 42, the selection spray pipe 5 is provided with a selection spray pipe quick connector plug 52 for quick connection with the selection spray pipe quick connector socket 42, and the upper end of the vertical spray pipe 4 is provided on the side towards the chassis fire extinguishing mechanism 1 and in the height direction with a group of vertical spray pipe atomizing nozzles 41.

[0027] Further, the selection spray pipe 5 is hollow and has two closed ends, the selection spray pipe 5 is parallel to the connection spray pipe 2 and extends to above the chassis fire extinguishing mechanism 1 at one end, the selection spray pipe 5 is provided at the lower surface of the end of the extension end and in the length direction with a group of selection spray pipe atomizing nozzles 51, and each selection spray pipe atomizing nozzle 51 forms a downward fan-shaped spray area.

[0028] In the embodiment, the upper surface of the extension pipe 3 is upwardly provided with a push plate 36, the push plate 36 is provided with a buffer head 361, the two sides of the extension pipe 3 are respectively provided with a universal wheel 35, the universal wheel 35 is respectively fixed below one end of a universal wheel connecting plate 351, the two sides of the extension pipe 3 are respectively provided with a connecting lug 34 corresponding to the position of the universal wheel 35, the other end of the universal wheel connecting plate 351 is respectively fixed with the corresponding connecting lug 34 through a universal wheel connecting plate fixing screw 352, and in the use process, the firefighter can use the long rod to push the buffer head 361 to make the whole device slide to the bottom of the vehicle.

[0029] Further, the two ends of the transverse spray pipe 11 are respectively fixed with a pull ring 115 on the side towards the connection spray pipe 2, the two sides of the connection spray pipe 2 are respectively provided with a pair of connection spray pipe locking lugs 24, the connection spray pipe locking lugs 24 are respectively pulled tight with the corresponding pull ring 115 through a connection spray pipe pull rope 241, and the two sides of the extension pipe 3 are respectively provided with a pair of extension pipe locking lugs 37, the extension pipe locking lugs 37 are respectively pulled tight with the corresponding pull ring 115 through an extension pipe pull rope 371.

[0030] It should be noted that the quick plug and the quick socket are mutually inserted and matched in the utility model, and the socket is sleeved on the plug and locked, an unlocking ring is formed on the plug, and the quick plug and the quick socket are unlocked by rotating the unlocking ring. The structure is a mature product that can be directly purchased in the market, so the specific structure will not be described here.

[0031] Please continue to refer to Figure 1 , when not in use, the aforementioned chassis fire extinguishing mechanism 1, the connection spray pipe 2, the extension pipe 3, the vertical spray pipe 4, the optional spray pipe 5 and the adapter 6 are in a scattered state and are packed and carried by a backpack, and one firefighter can carry the device to transfer. When the firefighter arrives at the fire site, the aforementioned chassis fire extinguishing mechanism 1 is assembled first, if the fire has not yet formed, the chassis fire extinguishing mechanism 1 can be used to connect the water pipe through the quick connector 114 of the connection spray pipe to directly extinguish the fire and cool the battery pack of the vehicle body, if the fire has formed, the aforementioned chassis fire extinguishing mechanism 1, the connection spray pipe 2, the extension pipe 3, the vertical spray pipe 4 and the optional spray pipe 5 are assembled, and then the adapter 6 is connected to the water hose to extinguish the fire. When the fire extinguishing device slides into the bottom of the vehicle from both sides of the vehicle during the fire extinguishing process, the aforementioned chassis fire extinguishing mechanism 1 sprays the battery pack at the bottom of the vehicle upward, the aforementioned connection spray pipe 2 sprays upward along the side of the vehicle body to form a water curtain to assist in cooling and extinguishing the fire, the aforementioned vertical spray pipe 4 sprays the side of the vehicle body directly to form a cross water curtain to assist in cooling and extinguishing the fire, at this time, the firefighter can approach the fire site more closely under the protection of the water curtain, and the aforementioned optional spray pipe 5 is suspended on the roof of the vehicle to spray downward to further control the fire. When the fire extinguishing device slides into the bottom of the vehicle from the front and rear of the vehicle during the fire extinguishing process, the aforementioned chassis fire extinguishing mechanism 1 sprays the battery pack at the bottom of the vehicle upward to extinguish the fire, the aforementioned connection spray pipe 2 sprays upward to the other positions of the chassis of the vehicle to cool, the aforementioned vertical spray pipe 4 sprays the front or rear of the vehicle directly to form a water curtain to assist in cooling and extinguishing the fire, and the aforementioned optional spray pipe 5 is suspended on the roof of the vehicle to spray downward to further control the fire, so that the fire extinguishing device can realize the purpose of extinguishing the fire of the new energy vehicle in all directions. Embodiment 2

[0032] Please refer to Figure 2 and in combination with Figure 1 , the structure of this embodiment is basically the same as that of embodiment one, except that the aforementioned optional spray pipe 5 is a hollow structure with both ends closed, the aforementioned optional spray pipe 5 is parallel to the horizontal spray pipe 11 and extends to both sides at both ends, and a group of optional spray pipe atomizing nozzles 51 are distributed on one side of the aforementioned optional spray pipe 5 facing the chassis fire extinguishing mechanism 1 and along the length direction, and each optional spray pipe atomizing nozzle 51 forms a fan-shaped spraying area downward obliquely.

[0033] The firefighter can use the spray pipe 5 to perform fire extinguishing work according to the needs of the scene. The fan-shaped spray area of the spray head 51 can cool and extinguish the fire in the vehicle through the window.

Claims

1. A modular new energy vehicle battery pack cooling and fire extinguishing device, characterized in that: The fire extinguishing mechanism includes a chassis fire extinguishing mechanism (1) that is slidably installed on a horizontal ground, a connecting spray pipe (2) that is detachably connected and communicates with the chassis fire extinguishing mechanism (1), an extension pipe (3) that is detachably connected and communicates with the connecting spray pipe (2), a vertical spray pipe (4) that is detachably connected and communicates with the extension pipe (3), and an optional spray pipe (5) that is detachably connected and communicates with the vertical spray pipe (4). The chassis fire extinguishing mechanism (1) includes a transverse spray pipe (11) that is detachably connected and communicates with the connecting spray pipe (2), and a set of longitudinal spray pipes (12) that are perpendicular to the transverse spray pipe (11) and detachably connected and communicates with the transverse spray pipe (11).

2. The modular new energy vehicle battery pack cooling and fire extinguishing device according to claim 1, characterized in that: The transverse spray pipe (11) is hollow and closed at both ends. A set of transverse spray pipe atomizing nozzles (111) are distributed on the upper surface of the transverse spray pipe (11) along its length. A set of longitudinal spray pipe quick-connect plugs (112) are spaced apart on the side of the transverse spray pipe (11) facing the longitudinal spray pipe (12). A transverse spray pipe pulley (113) is installed below each end of the transverse spray pipe (11) along its length. The longitudinal spray pipe (12) is hollow and closed at one end. A set of longitudinal spray pipe atomizing nozzles (121) are distributed on the upper surface of the longitudinal spray pipe (12) along its length. 12) At the end away from the enclosure, there is a quick-connect socket (122) for the longitudinal spray pipe that can be quickly connected to the quick-connect plug (112) of the longitudinal spray pipe. The longitudinal spray pipe (12) is fixed with a connecting screw (123) at the enclosure end. A connecting rod (13) is clamped between each connecting screw (123). A connecting screw screw (1231) is provided on each connecting screw (123). The connecting screw screw (1231) is tightened and the connecting rod (13) is pressed into the enclosure end of the longitudinal spray pipe (12). A longitudinal spray pipe pulley (124) is provided below the enclosure end of the longitudinal spray pipe (12).

3. The modular new energy vehicle battery pack cooling and fire extinguishing device according to claim 1, characterized in that: The transverse spray pipe (11) has a connecting spray pipe quick connector (114) in the middle of the side facing the connecting spray pipe (2); the connecting spray pipe (2) is hollow and has two through ends; one end of the connecting spray pipe (2) in the length direction has a connecting spray pipe quick connector socket (22) that can be quickly plugged into the connecting spray pipe quick connector (114); the other end of the connecting spray pipe (2) in the length direction has an extension pipe quick connector (23); one end of the extension pipe (3) in the length direction has an extension pipe quick connector socket (31) that can be quickly plugged into the extension pipe quick connector (23); a set of connecting spray pipe atomizing nozzles (21) are distributed along the length direction on the upper surface of the end of the connecting spray pipe (2) that forms the extension pipe quick connector (23).

4. The modular new energy vehicle battery pack cooling and fire extinguishing device according to claim 1, characterized in that: The extension tube (3) is hollow and has both ends connected to the middle. The middle of the extension tube (3) forms a vertical spray pipe quick-connect socket (32) facing upward. The lower end of the vertical spray pipe (4) forms a vertical spray pipe quick-connect plug (43) that can be quickly connected to the vertical spray pipe quick-connect socket (32). The extension tube (3) forms an adapter quick-connect plug (33) at the end away from the connecting spray pipe (2). An adapter (6) is provided on the adapter quick-connect plug (33). One end of the adapter (6) in the length direction is quickly connected to the adapter quick-connect plug (33) through an adapter quick-connect socket (61). The other end of the adapter (6) in the length direction forms a water hose connection plug (62).

5. The modular new energy vehicle battery pack cooling and fire extinguishing device according to claim 1, characterized in that: The upper end of the vertical sprinkler pipe (4) is provided with a quick-connect socket (42) for the optional sprinkler pipe; the optional sprinkler pipe (5) is provided with a quick-connect plug (52) for the optional sprinkler pipe to be quickly connected to the quick-connect socket (42); a set of vertical sprinkler pipe atomizing nozzles (41) are distributed on the side of the vertical sprinkler pipe (4) facing the chassis fire extinguishing mechanism (1) and along the height direction.

6. The modular new energy vehicle battery pack cooling and fire extinguishing device according to claim 1, characterized in that: The optional spray pipe (5) is a hollow structure with closed ends. The optional spray pipe (5) is parallel to the connecting spray pipe (2) and extends to the top of the chassis fire extinguishing mechanism (1) at one end. The optional spray pipe (5) has a set of optional spray pipe atomizing nozzles (51) distributed on the lower surface of the extended end along the length direction. Each optional spray pipe atomizing nozzle (51) forms a downward fan-shaped spray area.

7. The modular new energy vehicle battery pack cooling and fire extinguishing device according to claim 1, characterized in that: The optional spray pipe (5) is a hollow structure with closed ends. The optional spray pipe (5) is parallel to the transverse spray pipe (11) and extends to both sides. The optional spray pipe (5) has a set of optional spray pipe atomizing nozzles (51) distributed on one side facing the chassis fire extinguishing mechanism (1) and along the length direction. Each optional spray pipe atomizing nozzle (51) forms a downward-sloping fan-shaped spray area.

8. The modular new energy vehicle battery pack cooling and fire extinguishing device according to claim 1, characterized in that: A push plate (36) is formed on the upper surface of the extension tube (3), and a buffer head (361) is formed on the push plate (36). A universal wheel (35) is installed on both sides of the extension tube (3). The universal wheel (35) is fixed below one end of a universal wheel connecting plate (351). A connecting ear (34) is formed on both sides of the extension tube (3) at the position corresponding to the universal wheel (35). The other end of the universal wheel connecting plate (351) is fixed to the corresponding connecting ear (34) by a universal wheel connecting plate fixing screw (352).

9. The modular new energy vehicle battery pack cooling and fire extinguishing device according to claim 1, characterized in that: At both ends of the transverse spray pipe (11), a pull ring (115) is fixed on the side facing the connecting spray pipe (2); a pair of connecting spray pipe locking ears (24) are formed on both sides of the connecting spray pipe (2), and the connecting spray pipe locking ears (24) are tightened to the corresponding pull ring (115) by a connecting spray pipe cable (241); a pair of extension pipe locking ears (37) are formed on both sides of the extension pipe (3), and the extension pipe locking ears (37) are tightened to the corresponding pull ring (115) by an extension pipe cable (371).

10. The modular new energy vehicle battery pack cooling and fire extinguishing device according to claim 1, characterized in that: The horizontal spray pipe (11), the vertical spray pipe (12), and the connecting spray pipe (2) all spray upwards in a fan shape, while the vertical spray pipe (4) sprays in a fan shape toward the side of the chassis fire extinguishing mechanism (1).

Images