Emergency fire extinguishing device for automobile chassis and triggering system of emergency fire extinguishing device

Abstract

The invention relates to the technical field of automobile fire fighting, and particularly discloses an automobile chassis fire emergency fighting device and a triggering system thereof.A connecting block is fixed to the end, close to a second spray head, of an annular pipe fitting of the device, and a driving assembly is arranged below the connecting block and used for pushing the connecting block to rotate around a supporting plate; the connecting block and the annular pipe fittings are pushed by the driving assembly to rotate around the supporting plate, the water columns sprayed by the second spray heads on the pair of annular pipe fittings can intersect after rotation, and the water columns sprayed by the second spray heads on the pair of annular pipe fittings are in a crossed state below the vehicle chassis. After crossing, water columns can be concentrated to form stronger water columns, so that the residual fire which is difficult to extinguish through water mist can be better dealt with, the scattered fire can be extinguished in a concentrated manner, the situation that fire extinguishers are in danger and hold fire extinguishers to extinguish the combusted vehicles is avoided, and the fire extinguishers are protected to the maximum extent.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile fire fighting technology, in particular, relates to a kind of automobile chassis fire emergency extinguisher and its trigger system. BACKGROUND

[0002] In order to quickly extinguish the fire at the bottom of the vehicle, increase the control strength in the early stage of the fire, the firemen will use the chassis extinguisher to extinguish the fire at the bottom of the vehicle.

[0003] The chassis extinguisher is usually composed of a movable pipe structure and a plurality of nozzles on the pipe. The firemen move the pipe structure under the chassis of the vehicle and extinguish the fire on the chassis by the water mist and water column sprayed by the nozzles towards the upper side. The problem is that the existing chassis extinguisher covers the chassis uniformly through multiple nozzles, although the coverage area is large, but for some stubborn flames, such as burning oil stains, the fire at other positions of the chassis may still not be extinguished even if the fire at other positions of the chassis has been extinguished. If this situation is to be avoided by manual fire fighting, it is necessary to continuously supply fire water, which will obviously cause waste of fire water source and low extinguishing efficiency.

[0004] In view of this, the present application provides a kind of automobile chassis fire emergency extinguisher and its trigger system, provides the function of centralized fire extinguishing for the extinguisher, improves the functionality and practicability of the chassis fire extinguisher in the chassis fire extinguishing. SUMMARY

[0005] The purpose of the present application is to provide a kind of automobile chassis fire emergency extinguisher and its trigger system, to solve the following technical problems: How to provide the function of centralized fire extinguishing for the chassis fire extinguisher.

[0006] The purpose of the present application can be realized by the following technical solutions: A kind of automobile chassis fire emergency extinguisher and its trigger system, comprising: A pair of annular pipe fittings are symmetrically arranged, a plurality of first nozzles and a screw rod transmission assembly are arranged on each annular pipe fitting, and at least one row of first nozzles and one row of screw rod transmission assemblies are in parallel state; A bottom plate is provided with a fixed water distribution pipe connected to a water source, a hose is connected to the fixed water distribution pipe, the other end of the hose is connected to the annular pipe fitting, an installation plate is connected to the bottom plate, a support plate is fixed to the installation plate, a connecting rod is arranged near the first nozzle end of the annular pipe fitting, and the connecting rod is rotatably connected to the support plate; The annular pipe is fixed with a connecting block at one end of the second nozzle, a driving assembly is arranged below the connecting block, the driving assembly is used to push the connecting block to rotate around the supporting plate, and after the rotation of the connecting block, the water columns sprayed by the second nozzles on the pair of annular pipes are in a crossed state below the vehicle chassis.

[0007] Through the above technical scheme: the water columns sprayed by the first nozzles and the second nozzles mounted on the annular pipes are used for extinguishing the fire on the chassis, at the beginning of the extinguishing of the chassis, the pair of annular pipes are horizontally placed, the water columns and the water mist diffused by the first nozzles and the second nozzles are uniformly used for extinguishing the fire in the area above the annular pipes, after the fire on the chassis is preliminarily controlled, the remaining part of the stubborn fire which is difficult to extinguish is pushed by the driving assembly to rotate the connecting block and the annular pipe around the supporting plate, after the rotation, the water columns sprayed by the second nozzles on the pair of annular pipes are crossed, after the crossing, the water columns can be concentrated to form stronger water columns, so that the remaining fire which is difficult to be extinguished by the water mist can be better dealt with, the scattered fire can be concentrated and extinguished, and the situation that the fire extinguishing personnel risks to hold the fire extinguisher to extinguish the fire on the burning vehicle is avoided, and the fire extinguishing personnel is maximally protected.

[0008] As a further technical scheme of the present application: the mounting plate is rotationally connected with a driving gear, the connecting rod is fixed with a connecting shaft, the connecting shaft is fixedly connected with the driving gear, the outer side of the annular pipe is rotationally connected with a driven gear, the driven gear is connected with a synchronous rod, the synchronous rod is fixedly connected with a row of first nozzles, and the driving gear is engaged with the driven gear. The annular pipe is provided with a connecting sleeve, the connecting sleeve is sleeved with a round sleeve, and the first nozzle is connected to the round sleeve.

[0009] Through the above technical scheme: after the preliminary extinguishing of the chassis is completed, the scattered fire is concentrated and extinguished, on this basis, since the water pressure on one side of the annular pipe rises upward and is more likely to contact the stains that may fall from the chassis, the fire extinguishing nozzle usually has a water column outlet and a water mist outlet, if the contacted stain is relatively large in viscosity, such as engine oil, if the stain adheres to the water mist outlet and is difficult to wash away the soil and oil stains by the water flow due to the low water pressure, the water mist outlet will be blocked, the first nozzle provided by the present application can rotate the round sleeve around the annular pipe, the rotating annular pipe will transmit power through the driving gear and the driven gear to make the first nozzle tilt towards the second nozzle, after the water column emitted by the first nozzle is aligned with the second nozzle, the stain adhered to or stuck on the second nozzle is carried away by the impact of the water column, the spraying effect of the second nozzle is maintained, and at the same time, the inclined water column and the water mist emitted by the first nozzle can continue to provide a large amount of fire-fighting water below the chassis, thereby reducing the probability of re-ignition in the area that has been extinguished.

[0010] As a further technical scheme of the present application: the connecting block is slidably connected with a sliding rod, the driving structure comprises a lifting piece, the sliding rod is rotatably connected with a power rod, and the power rod is driven by the lifting piece to lift and lower in the vertical direction above the bottom plate.

[0011] As a further technical scheme of the present application: a lead screw transmission assembly is arranged below the bottom plate, a moving wheel is fixed below the lead screw transmission assembly, the bottom plate is fixedly connected to a moving piece of the lead screw transmission assembly, and the lead screw transmission assembly drives the bottom plate to reciprocatingly move linearly in a direction perpendicular to the arrangement direction of the first nozzle.

[0012] As a further technical scheme of the present application: a connecting pipe is connected in front of the fixed water distribution pipe, the connecting pipe is made of rigid material, and a quick release structure is arranged at the end of the connecting pipe.

[0013] As a further technical scheme of the present application: a fixed rod is fixed to the bottom plate, a lever is rotatably connected to the fixed rod, the two sections of the lever are flexibly connected with an output rod and a power rod, the output rod is connected to the output end of the lifting piece and is lifted and lowered by the lifting piece, the fixed rod is arranged close to the output rod, a controller and a wireless receiver are arranged in the shell of the lead screw transmission assembly, the wireless receiver is used for communicating with and receiving control instructions from the outside world, and the controller controls the operation of the lead screw transmission assembly and the lifting piece according to the control instructions.

[0014] Through the above technical scheme: the process of indirectly driving the power rod by the lifting piece through the lever is provided, specifically, the purpose of arranging the lever in the present application is to realize a large-amplitude rotation of the annular pipe by a smaller stroke, since the power rod needs to be lifted to drive the annular pipe to rotate, the lifting piece is usually a hydraulic cylinder, in the flat state of the annular pipe, the power rod is directly connected with the connecting block, the stroke of the hydraulic cylinder has certain requirements, which limits the overall thickness of the fire extinguisher, and after the lever is adopted, the requirements for the stroke of the hydraulic cylinder can be eliminated, so that a thinner product can be designed, and more different types of vehicles can be adapted.

[0015] Another purpose of the present application is to provide a trigger system of an automobile chassis fire emergency extinguisher, which comprises: a perception module, which is used for acquiring image information of a vehicle in which a fire occurs; an analysis and judgment module, which is used for judging the type of the vehicle and acquiring the ground clearance information of the chassis of the vehicle according to the image information acquired by the perception module, and judging the fire level of the chassis, an instruction generation module, which is used for judging whether to issue a control instruction according to the fire level output by the analysis and judgment module, and giving the stroke information of the lifting piece in the control instruction according to the ground clearance information of the chassis to control the rotation angle of the annular pipe. A wireless transceiver module is used to communicate with the fire extinguisher and transmit control instructions to the controller through the wireless receiver.

[0016] Through the above technical scheme: a trigger system for triggering the rotation of the annular pipe is provided, specifically, the image information of the car in the fire is obtained by the sensing module, and whether the annular pipe is triggered to rotate and the rotation angle of the annular pipe are determined according to the image information, the fire condition is automatically judged by the image sensing mode, the behavior of the fire extinguishing personnel crouching close to the fire to observe the fire extinguishing state of the vehicle can be avoided, and the safety of the fire extinguishing personnel without wearing protective clothing is greatly increased.

[0017] As a further technical scheme of the present application: the analysis and judgment module judges the fire condition by inputting the image information into the trained neural network model for recognition, and outputs different fire levels from the neural network model.

[0018] The beneficial effects of the present application are: (1) The driving assembly pushes the connecting block and the annular pipe to rotate around the support plate, and the water column sprayed by the second nozzle on the pair of annular pipes after rotation will intersect, and after intersection, the water column can be concentrated to form a stronger water column, so as to better cope with the remaining difficult-to-extinguish fire, realize the centralized extinguishing of sporadic fire, and avoid the case that the fire extinguishing personnel risks holding the fire extinguisher to extinguish the burning vehicle, thereby maximizing the protection of the fire extinguishing personnel.

[0019] (2) The first nozzle provided by the present application can make the circular sleeve rotate around the annular pipe, and the rotating annular pipe can make the first nozzle tilt towards the direction of the second nozzle through the power transmission of the driving gear and the driven gear. After the water column emitted by the first nozzle is aligned with the second nozzle, the impact of the water column can carry the dirt attached to or stuck on the second nozzle, thereby maintaining the spraying effect of the second nozzle. At the same time, the inclined water column and water mist emitted by the first nozzle can continue to provide a large amount of fire-fighting water under the chassis, thereby reducing the probability of rekindling in the already extinguished area.

[0020] (3) The present application sets the lever as a connecting transition part of the power rod and the lifting piece, which can eliminate the requirement for the stroke of the hydraulic cylinder, thereby designing a thinner product and adapting to more different types of vehicles.

[0021] (4) The present application obtains the image information of the car in the fire through the sensing module, determines whether to trigger the annular pipe to rotate and the rotation angle of the annular pipe according to the image information, and automatically judges the fire condition by the image sensing mode, which can avoid the behavior of the fire extinguishing personnel crouching close to the fire to observe the fire extinguishing state of the vehicle, and greatly increase the safety of the fire extinguishing personnel without wearing protective clothing. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application will be further described below with reference to the drawings.

[0023] Figure 1 is a schematic view of the overall structure of embodiment 1 of the application; Figure 2 is a schematic view of the structure at A of the application Figure 1 ; Figure 3 is a schematic view of the structure at B of the application Figure 1 ; Figure 4 is a side view of the overall structure of embodiment 1 of the application; Figure 5 is a top view of the overall structure of embodiment 1 of the application; Figure 6 is a schematic view of the cross-section at C-C of the application Figure 5 ; Figure 7 is a schematic view of the running state of the application; Figure 8 is a schematic view of the driving assembly of embodiment 2 of the application.

[0024] Explanation of reference numerals: 10, annular pipe; 11, first nozzle; 12, second nozzle; 13, connecting rod; 14, driving gear; 15, driven gear; 16, connecting shaft; 17, support plate; 18, mounting plate; 19, synchronizing rod; 20, base plate; 21, moving wheel; 22, screw transmission assembly; 23, connecting pipe; 24, fixed water distribution pipe; 25, hose; 30, connecting block; 31, lifting member; 32, sliding rod; 33, power rod; 34, lever; 35, output rod; 36, fixed rod; 40, round sleeve; 41, connecting sleeve. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, but not all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the application.

[0026] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0027] Embodiment 1

[0028] Please refer to Figures 1-7 As shown in the drawings, in one embodiment, a vehicle chassis fire emergency extinguisher and its triggering system are provided, comprising: The annular pipe 10 is preferably a square frame structure, and a pair of annular pipes 10 are symmetrically arranged. A plurality of first nozzles 11 and a plurality of screw rod transmission assemblies 22 are arranged on the annular pipes 10, respectively. At least one row of first nozzles 11 and one row of screw rod transmission assemblies 22 are in parallel state. A bottom plate 20 is provided, and a fixed water distribution pipe 24 connected with a water source is fixed on the bottom plate 20. A hose 25 is connected to the fixed water distribution pipe 24, and the other end of the hose 25 is connected in communication with the annular pipe 10. An installation plate 18 is connected to the bottom plate 20, and a supporting plate 17 is fixed on the installation plate 18. The installation plate 18 is fixed on the bottom plate 20 by means of a bolt set. A connecting rod 13 is arranged on one end of the annular pipe 10 close to the first nozzle 11, and the connecting rod 13 is rotatably connected to the supporting plate 17. A connecting block 30 is fixed on one end of the annular pipe 10 close to the second nozzle 12. A driving assembly is arranged below the connecting block 30. The driving assembly is used to drive the connecting block 30 to rotate around the supporting plate 17, and to make the water columns sprayed by the second nozzles 12 on the pair of annular pipes 10 in cross state under the vehicle chassis after the connecting block 30 rotates. It should be noted that the number of the first nozzles 11 and the screw rod transmission assemblies 22 needs to be equal, but they do not need to be completely coincident in position. In the case that the first nozzles 11 and the screw rod transmission assemblies 22 are slightly staggered in position, the water columns sprayed by them can have larger coverage area on the basis of concentration. In the case that the first nozzles 11 and the screw rod transmission assemblies 22 are in position correspondence, the water supply can be more concentrated. The two setting modes can be selected according to specific needs.

[0029] The water column sprayed by the first spray head 11 and the second spray head 12 mounted on the annular pipe 10 is used to extinguish the fire on the chassis. When the fire on the chassis is initially extinguished, the pair of annular pipes 10 is horizontally placed, and the water column and the water mist diffused by the first spray head 11 and the second spray head 12 are uniformly used to extinguish the fire in the area above the annular pipe 10. When the fire is preliminarily controlled, the remaining stubborn fire is difficult to extinguish. The connecting block 30 and the annular pipe 10 are driven by the driving assembly to rotate around the support plate 17. After rotation, the water column sprayed by the second spray head 12 on the pair of annular pipes 10 intersects. After intersection, the water column can be concentrated to form a stronger water column, so as to better cope with the remaining fire that is difficult to extinguish by water mist, realize the concentrated extinguishing of the scattered fire, and avoid the situation that the fire extinguishing personnel risks holding the fire extinguisher to extinguish the burning vehicle, thereby maximizing the protection of the fire extinguishing personnel.

[0030] The mounting plate 18 is rotationally connected with the driving gear 14. The connecting rod 13 is fixedly connected with the connecting shaft 16. The connecting shaft 16 is fixedly connected with the driving gear 14. Only the driving gear 14 can be driven to rotate by the rotation of the annular pipe 10. The annular pipe 10 is rotationally connected with the driven gear 15. The driven gear 15 is connected with the synchronous rod 19. The synchronous rod 19 is fixedly connected with the row of first spray heads 11. The driving gear 14 is engaged with the driven gear 15. The annular pipe 10 is provided with the connecting sleeve 41. The connecting sleeve 41 is sleeved with the round sleeve 40. The first spray head 11 is connected with the round sleeve 40.

[0031] After the preliminary chassis fire is extinguished, the concentrated extinguishing of the scattered fire is performed. On this basis, since the water pressure on one side of the annular pipe 10 rises upward, the water pressure is reduced, and it is easier to contact the stains that may fall from the chassis. The fire extinguishing nozzle usually has a water column outlet and a water mist outlet. If the contacted stain is sticky, such as oil, if it adheres to the water mist outlet, and since the water pressure is reduced, it is difficult to wash away the dirt and oil stains by the water flow itself, which will cause the water mist outlet to be blocked. The first spray head 11 provided by the application can rotate the round sleeve 40 around the annular pipe 10. The rotating annular pipe 10 can drive the first spray head 11 to tilt towards the second spray head 12 through the power transmission of the driving gear 14 and the driven gear 15. After the water column emitted by the first spray head 11 is aligned with the second spray head 12, the stain adhered or stuck on the second spray head 12 is carried away by the impact of the water column, thereby maintaining the spraying effect of the second spray head 12. At the same time, the inclined water column and water mist emitted by the first spray head 11 can continue to provide a large amount of fire-fighting water under the chassis, thereby reducing the probability of rekindling in the already extinguished area.

[0032] The sliding rod 32 is slidably connected in the connecting block 30. The driving structure includes the lifting piece 31. The power rod 33 is rotationally connected to the sliding rod 32. The power rod 33 is driven by the lifting piece 31 to vertically ascend above the bottom plate 20.

[0033] A screw rod transmission assembly 22 is arranged below the bottom plate 20, and a moving wheel 21 is fixed below the screw rod transmission assembly 22; the bottom plate 20 is fixedly connected to a moving part of the screw rod transmission assembly 22, and the screw rod transmission assembly 22 drives the bottom plate 20 to move linearly back and forth in a direction perpendicular to the arrangement direction of the first spray head 11.

[0034] A connecting pipe 23 is connected to the front of the fixed water distribution pipe 24; the connecting pipe 23 is made of rigid material, and the end of the connecting pipe 23 is provided with a quick release structure; the quick release structure should be arranged according to the fire-fighting standard; preferably, the quick release structure matched with the fire hose is arranged.

[0035] A controller and a wireless receiver are arranged in the shell of the screw rod transmission assembly 22; the wireless receiver is used for communicating with the outside world and receiving control instructions from the outside world; the controller controls the operation of the screw rod transmission assembly 22 and the lifting part 31 according to the control instructions; the controller can be a microprocessor or a single-chip microcomputer; and the control instructions are set according to the type of the controller.

[0036] Another object of the present application is to provide a trigger system of an automobile chassis fire emergency extinguisher, which comprises: A sensing module, which is used for acquiring image information of a vehicle on fire, and is usually a camera carried by a fire-fighting personnel; An analysis and judgment module, which judges the type of the vehicle and acquires the ground clearance information of the chassis of the vehicle according to the image information acquired by the sensing module, and judges the fire level of the chassis, An instruction generation module, which judges whether to send a control instruction according to the fire level output by the analysis and judgment module, and gives the stroke information of the lifting part 31 in the control instruction according to the ground clearance information of the chassis of the vehicle to control the rotation angle of the annular pipe 10; A wireless transceiver module, which is used for being communicatively connected with the extinguisher and transmitting the control instruction to the controller through the wireless receiver.

[0037] In the embodiment, a trigger system for triggering the rotation of the annular pipe 10 is provided; specifically, the sensing module is used to acquire image information of a vehicle on fire; the rotation of the annular pipe 10 and the rotation angle of the annular pipe 10 are judged according to the image information; the fire condition is automatically judged through image sensing, which can avoid the behavior of a fire-fighting personnel lying down near the vehicle on fire to observe the fire-fighting state of the vehicle, and greatly increases the safety of the fire-fighting personnel without wearing protective clothing.

[0038] The analysis and judgment module judges the fire condition by inputting the picture of the image information into a trained neural network model for recognition, and outputs different fire levels from the neural network model.

[0039] Embodiment 2

[0040] The embodiment is different from the embodiment 1 in that a transition part is provided for the connection of the power rod 33 and the lifting piece 31, so that the requirement for the stroke of the hydraulic cylinder is eliminated in the direct connection, and the goalkeeper can be designed to be thinner.

[0041] Reference Figure 8 The fixed rod 36 is fixed on the bottom plate 20, the lever 34 is rotatably connected on the fixed rod 36, the two sections of the lever 34 are flexibly connected with the output rod 35 and the power rod 33, the output rod 35 is connected on the output end of the lifting piece 31 and is driven to lift by the lifting piece 31, and the fixed rod 36 is arranged close to the side of the output rod 35.

[0042] In the embodiment, the process of indirectly driving the power rod 33 by the lifting piece 31 through the lever 34 is provided, and specifically, the lever 34 is arranged to realize the rotation of the annular pipe 10 with a large amplitude through a smaller stroke. Since the power rod 33 needs to be lifted to drive the annular pipe 10 to rotate, the lifting piece 31 is usually a hydraulic cylinder, in the flat state of the annular pipe 10, the power rod 33 is directly connected with the connecting block 30, and the stroke of the hydraulic cylinder has a certain requirement, which limits the overall thickness of the final goalkeeper. After the lever 34 is used, the requirement for the stroke of the hydraulic cylinder can be eliminated, so that a thinner product can be designed, and more different types of vehicles can be adapted.

[0043] The above describes one embodiment of the application in detail, but the content described is only the preferred embodiment of the application and cannot be considered to limit the implementation range of the application. Any equivalent changes and improvements made according to the application scope should still belong to the patent coverage range of the application.

Claims

1. An emergency fire extinguisher for automobile chassis fires, characterized in that, include: A ring-shaped pipe fitting (10) is provided with a pair of symmetrically arranged ring-shaped pipe fittings (10). A plurality of first nozzles (11) and screw drive assemblies (22) are respectively provided on the ring-shaped pipe fittings (10), wherein at least one row of first nozzles (11) and one row of screw drive assemblies (22) are in a parallel state. A base plate (20) is fixed with a fixed water distribution pipe (24) connected to a water source. A hose (25) is connected to the fixed water distribution pipe (24). The other end of the hose (25) is connected to an annular pipe fitting (10). An installation plate (18) is connected to the base plate (20). A support plate (17) is fixed on the installation plate (18). A connecting rod (13) is provided at one end of the annular pipe fitting (10) near the first nozzle (11). The connecting rod (13) is rotatably connected to the support plate (17). The annular pipe (10) is fixed with a connecting block (30) at one end near the second nozzle (12). A driving component is provided below the connecting block (30). The driving component is used to push the connecting block (30) to rotate around the support plate (17). After the connecting block (30) rotates, the water jets sprayed by the second nozzles (12) on the pair of annular pipes (10) are in a cross state under the vehicle chassis.

2. The emergency fire extinguisher for automobile chassis fire according to claim 1, characterized in that, A drive gear (14) is rotatably connected to the mounting plate (18), a connecting shaft (16) is fixed on the connecting rod (13), the connecting shaft (16) is fixedly connected to the drive gear (14), a driven gear (15) is rotatably connected to the outside of the annular tube (10), a synchronizing rod (19) is connected to the driven gear (15), the synchronizing rod (19) is fixedly connected to a row of first nozzles (11), and the drive gear (14) meshes with the driven gear (15). The annular pipe fitting (10) is provided with a connecting sleeve (41), and a round sleeve (40) is fitted on the connecting sleeve (41). The first nozzle (11) is connected to the round sleeve (40).

3. The emergency fire extinguisher for automobile chassis fire according to claim 1, characterized in that, A sliding rod (32) is slidably connected inside the connecting block (30). The driving structure includes a lifting component (31). A power rod (33) is rotatably connected to the sliding rod (32). The power rod (33) is driven by the lifting component (31) to move up and down vertically above the base plate (20).

4. The emergency fire extinguisher for automobile chassis fire according to claim 1, characterized in that, A screw drive assembly (22) is provided below the base plate (20), and a movable wheel (21) is fixed below the screw drive assembly (22). The base plate (20) is fixedly connected to the movable part of the screw drive assembly (22), and the screw drive assembly (22) drives the base plate (20) to reciprocate linearly in a direction perpendicular to the arrangement direction of the first nozzle (11).

5. The emergency fire extinguisher for automobile chassis fire according to claim 1, characterized in that, The fixed water distribution pipe (24) is connected to a connecting pipe (23) in front. The connecting pipe (23) is made of rigid material and has a quick-release structure at the end.

6. The emergency fire extinguishing device for automobile chassis according to claim 3, characterized in that, A fixed rod (36) is fixed on the base plate (20). A lever (34) is rotatably connected to the fixed rod (36). The lever (34) is flexibly connected to the output rod (35) and the power rod (33) in two sections. The output rod (35) is connected to the output end of the lifting component (31) and is driven to lift by the lifting component (31). The fixed rod (36) is set on the side close to the output rod (35). A controller and a wireless receiver are set inside the housing of the screw drive assembly (22). The wireless receiver is used to communicate with the outside world and receive external control commands. The controller controls the operation of the screw drive assembly (22) and the lifting component (31) according to the control commands.

7. A triggering system for an emergency fire extinguisher for automobile chassis, characterized in that, The vehicle chassis fire emergency extinguishing device as described in any one of claims 1-6 comprises: The sensing module is used to acquire image information of the vehicle that is on fire; The analysis and judgment module determines the type of vehicle and the ground clearance information of the vehicle chassis based on the image information obtained by the perception module, and also determines the level of fire on the chassis. The instruction generation module determines whether to issue a control instruction based on the fire level output by the analysis and judgment module. The instruction generation module provides the stroke information of the lifting component (31) in the control instruction based on the ground clearance information of the vehicle chassis to control the rotation angle of the annular pipe component (10). The wireless transceiver module is used to communicate with the firefighting device and transmit control commands to the controller via a wireless receiver.

8. The triggering system for an emergency fire suppression device for a car chassis according to claim 7, characterized in that, The analysis and judgment module determines the fire status by inputting images of the fire information into a trained neural network model for identification, and the neural network model outputs different fire levels.

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