Fire extinguishing and cooling device for automobile chassis

By designing a combined square tube structure for a car chassis fire extinguishing device, the problem of existing fire hoses being unable to extinguish fires accurately has been solved, achieving rapid and efficient fire extinguishing and cooling effects on vehicle chassis of different specifications.

CN224251971UActive Publication Date: 2026-05-19YINCHUAN XIXIA DISTRICT FIRE RESCUE BRIGADE (YINCHUAN XIXIA DISTRICT FIRE RESCUE BUREAU)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YINCHUAN XIXIA DISTRICT FIRE RESCUE BRIGADE (YINCHUAN XIXIA DISTRICT FIRE RESCUE BUREAU)
Filing Date
2025-03-28
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing fire hoses are unable to quickly and effectively extinguish and cool down the chassis of vehicles of different sizes. Especially when the chassis of large vehicles catch fire, it is difficult to cover the fire point, resulting in poor fire extinguishing effect.

Method used

Design a square tube structure consisting of a first half-tube and a second half-tube, equipped with casters and connectors, which can quickly extend into the chassis of a car and spray water efficiently to extinguish fires through spray holes, adapting to different vehicle specifications and ensuring large and precise coverage.

Benefits of technology

It enables rapid and effective fire extinguishing and cooling of the vehicle chassis, improves firefighting efficiency, adapts to different vehicle specifications, and ensures that the fire point is covered in a timely manner.

✦ Generated by Eureka AI based on patent content.

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Abstract

A fire extinguishing and cooling device for an automobile chassis belongs to the technical field of fire fighting tools and comprises a first half pipe and a second half pipe, two ends of the first half pipe are communicated with first connectors, two ends of the second half pipe are communicated with second connectors, and each second connector is matched with the corresponding first connector. The first half pipe and the second half pipe form a square pipe, a plurality of first spraying holes are evenly formed in the upper end of the first half pipe, a plurality of second spraying holes are evenly formed in the upper end of the second half pipe, and the first half pipe is communicated with a connecting pipe. The device can quickly extend into the bottom of an automobile, is resistant to the high temperature of the bottom of the automobile, can continuously spray water to the bottom of the automobile by being connected with a water tank of a fire fighting truck, is of an annular structure composed of the two half body structures, and can accurately extinguish and cool the chassis of the automobile due to the fact that the spraying holes in the annular structure are large in coverage area.
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Description

Technical Field

[0001] This utility model belongs to the field of fire-fighting tool technology, and in particular relates to a fire-extinguishing and cooling device for automobile chassis. Background Technology

[0002] With the development of new energy vehicles in recent years, most fires in these vehicles originate from the underside. This area is not suitable for direct application of fire hoses to cool the chassis. While existing technologies allow for water spraying from devices inserted under the vehicle, which can extinguish fires, the effective range is too small and the spray is inaccurate. Furthermore, the varying widths of different vehicle sizes, such as cars and buses, make it difficult to reach the fire source promptly, limiting the cooling and extinguishing effect and failing to effectively and quickly control the continued combustion in the battery compartment of the chassis. Utility Model Content

[0003] The purpose of this invention is to solve the problem that existing fire hoses cannot quickly and effectively cool down and extinguish fires on the chassis of cars of different sizes. Therefore, it provides a car chassis fire extinguishing and cooling device that can extend into the car chassis and directly extinguish and cool down the fire point on the car chassis.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Design a fire extinguishing and cooling device for automobile chassis, including a first half-pipe and a second half-pipe. Both ends of the first half-pipe are connected to a first connector, and both ends of the second half-pipe are connected to a second connector. Each second connector is matched with a corresponding first connector. The first half-pipe and the second half-pipe form a square tube. The upper end of the first half-pipe is evenly provided with a plurality of first spray holes, and the upper end of the second half-pipe is evenly provided with a plurality of second spray holes. A connecting pipe is connected to the first half-pipe.

[0006] Preferably, each of the second connectors is connected to a sealing ring, and each sealing ring is in contact with the corresponding first connector.

[0007] Preferably, a first mounting plate is fixedly connected to both sides of the bottom end of each of the first half-tubes, and a first universal wheel with brake is fixedly connected to both sides of the bottom end of each of the first mounting plates; a second mounting plate is fixedly connected to both sides of the bottom end of each of the second half-tubes, and a second universal wheel with brake is fixedly connected to both sides of the bottom end of each of the second mounting plates.

[0008] Preferably, a fixing seat is fixedly connected to one side of the first half-tube, and a pull rod is rotatably connected to the fixing seat. The pull rod and the connecting tube are located on the same side.

[0009] Preferably, a limiting plate is fixedly connected to the first half-tube, a guide plate is fixedly connected to the second half-tube, a groove frame is slidably connected to the guide plate, and one end of the limiting plate is slidably inserted into the groove frame.

[0010] The beneficial effects of this invention are as follows: This device can quickly extend into the bottom of a car, unaffected by the high temperatures underneath, and then, by connecting to a fire truck's water tank, continuously spray water onto the bottom of the car, thereby rapidly cooling it down. The device consists of a first and second half-pipe that can be quickly installed to form a ring-shaped pipe structure. Equipped with casters, it is easy to carry, install, and move, significantly improving the efficiency of firefighting operations when the car chassis catches fire. The ring-shaped structure composed of two halves of the device has a large coverage area for its spray nozzles, enabling precise fire extinguishing and cooling of the car chassis. Attached Figure Description

[0011] Figure 1 This utility model provides a structural schematic diagram of an automobile chassis fire extinguishing and cooling device. Figure 1 ;

[0012] Figure 2 This utility model provides a structural schematic diagram of an automobile chassis fire extinguishing and cooling device. Figure 2 ;

[0013] Figure 3 This is a cross-sectional structural diagram of a fire extinguishing and cooling device for automobile chassis proposed in this utility model.

[0014] In the diagram: 1. First half-pipe; 2. Second half-pipe; 3. First connector; 4. Second connector; 5. Sealing ring; 6. First injection hole; 7. Second injection hole; 8. First mounting plate; 9. First caster wheel with brake; 10. Second mounting plate; 11. Second caster wheel with brake; 12. Connecting pipe; 13. Fixed base; 14. Pull rod; 15. Limiting plate; 16. Guide plate; 17. Groove frame. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Example 1: Refer to Figure 1-3A fire extinguishing and cooling device for automobile chassis includes a first half-pipe 1 and a second half-pipe 2. Both ends of the first half-pipe 1 are connected to a first connector 3, and both ends of the second half-pipe 2 are connected to a second connector 4. Each second connector 4 is engaged with a corresponding first connector 3. Each second connector 4 is connected to a sealing ring 5, and each sealing ring 5 is in contact with a corresponding first connector 3. The first half-pipe 1 and the second half-pipe 2 form a square tube. The upper end of the first half-pipe 1 is evenly provided with a plurality of first spray holes 6, and the upper end of the second half-pipe 2 is evenly provided with a plurality of second spray holes 7. A connecting pipe 12 is connected to the first half-pipe 1. A fixing seat 13 is fixedly connected to one side of the first half-pipe 1. A pull rod 14 is rotatably connected to the fixing seat 13. The pull rod 14 and the connecting pipe 12 are located on the same side.

[0017] Work process:

[0018] The first half-pipe 1 and the second half-pipe 2 are placed on the ground respectively. The two parts can be moved by the universal wheel structure set at the bottom. The first half-pipe 1 is moved by the first universal wheel 9 with brake, and the second half-pipe 2 is moved by the second universal wheel 11 with brake, so that the two pipe openings of the first half-pipe 1 and the second half-pipe 2 are connected together. They are installed and connected by the quick connection joint structure of the first connector 3 and the second connector 4. At the same time, water is supplied by connecting the fire pipe from the fire truck to the connecting pipe 12.

[0019] Open the fire valve to allow the first spray hole 6 and the second spray hole 7 on the first half-pipe 1 and the second half-pipe 2 to spray water evenly outward. Then open the pull rod 14 and use the pull rod 14 to push the square tube structure composed of the first half-pipe 1 and the second half-pipe 2 into the bottom of the car to extinguish and cool the fire point on the car chassis.

[0020] Example 2: In Example 1, after the first half-tube 1 and the second half-tube 2 are assembled, it is inconvenient to move them. (Refer to...) Figure 1-2 In another preferred embodiment of this utility model, the difference from embodiment 1 is that a first mounting plate 8 is fixedly connected to both sides of the bottom end of each first half-tube 1, and a first universal wheel 9 with brake is connected to both sides of the bottom end of each first mounting plate 8. A second mounting plate 10 is fixedly connected to both sides of the bottom end of each second mounting plate 10, and a second universal wheel 11 with brake is fixedly connected to both sides of the bottom end of each second mounting plate 10. The bottom end of the first half-tube 1 contacts the ground through the first universal wheel 9 with brake, and the bottom end of the second half-tube 2 contacts the ground through the second universal wheel 11 with brake. When the device is moved, the first universal wheel 9 with brake and the second universal wheel 11 with brake support the device and roll in contact with the ground, thereby facilitating the movement of the device.

[0021] Example 3: In Example 1, when assembling the first half-tube 1 and the second half-tube 2, it is not possible to quickly align and splice the second connector 4 with the first connector 3. (Refer to...) Figure 1-3 As another preferred embodiment of this utility model, the difference from embodiment 1 is that a limiting plate 15 is fixedly connected to the first half-tube 1, a guide plate 16 is fixedly connected to the second half-tube 2, a groove frame 17 is slidably connected to the guide plate 16, and one end of the limiting plate 15 is slidably inserted into the groove frame 17. When assembling the first half-tube 1 and the second half-tube 2, the groove frame 17 is slid, and one end of the groove frame 17 is inserted into the limiting plate 15. The limiting plate 15 guides and limits the first half-tube 1, so that the first half-tube 1 and the second half-tube 2 are aligned, which facilitates the quick alignment and splicing of the second connector 4 and the first connector 3.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vehicle chassis fire extinguishing and cooling device, comprising a first half-pipe (1) and a second half-pipe (2), wherein both ends of the first half-pipe (1) are connected to a first connector (3), characterized in that, in: The second half-tube (2) is connected to a second connector (4) at both ends. Each second connector (4) is matched with the corresponding first connector (3). The first half-tube (1) and the second half-tube (2) form a square tube. The upper end of the first half-tube (1) is evenly provided with a number of first injection holes (6). The upper end of the second half-tube (2) is evenly provided with a number of second injection holes (7). The first half-tube (1) is connected to a connecting pipe (12).

2. The automobile chassis fire extinguishing and cooling device according to claim 1, characterized in that, Each of the second connectors (4) is connected to a sealing ring (5), and each sealing ring (5) is in contact with the corresponding first connector (3).

3. The automobile chassis fire extinguishing and cooling device according to claim 1, characterized in that, Each of the first half-tubes (1) is fixedly connected to a first mounting plate (8) on both sides of the bottom end, and each of the first mounting plates (8) is fixedly connected to a first universal wheel (9) with a brake on both sides of the bottom end. Each of the second half-tubes (2) is fixedly connected to a second mounting plate (10) on both sides of the bottom end, and each of the second mounting plates (10) is fixedly connected to a second universal wheel (11) with a brake on both sides of the bottom end.

4. The automobile chassis fire extinguishing and cooling device according to claim 3, characterized in that, A fixed seat (13) is fixedly connected to one side of the first half-pipe (1), and a pull rod (14) is rotatably connected to the fixed seat (13). The pull rod (14) and the connecting pipe (12) are located on the same side.

5. The automobile chassis fire extinguishing and cooling device according to claim 4, characterized in that, A limiting plate (15) is fixedly connected to the first half-tube (1), and a guide plate (16) is fixedly connected to the second half-tube (2). A groove frame (17) is slidably connected to the guide plate (16), and one end of the limiting plate (15) is slidably inserted into the groove frame (17).