Firefighting drone and working method thereof

Abstract

The invention discloses a firefighting drone and a working method thereof. The firefighting drone comprises an annular frame, a drone main control and a battery, the annular frame is a drone power mechanism for providing power to the frame, a connecting frame is arranged on the annular frame, a heat-insulating chassis is arranged at the end of the connecting frame, a conical installation space is formed between the connecting frame, the heat-insulating chassis and the annular frame, a jet fire-extinguishing device for providing power to the annular frame when working is inserted into the installation space, a limiting plate is arranged on the bottom surface of the annular frame, the limiting plate is rotatably connected to the annular frame, a limiting groove matched with the limiting plate is arranged on the side of the jet fire-extinguishing device, a heat-insulating glass cover is arranged on the heat-insulating chassis, a sealed installation cavity is formed between the heat-insulating chassis and the heat-insulating glass cover, and a camera is arranged in the sealed installation cavity; the firefighting drone has a strong firefighting capability.

Description

Technical Field

[0001] The invention relates to a firefighting drone and a working method thereof. Background Art

[0002] An unmanned aircraft is an unmanned aircraft that is controlled by radio remote control equipment and self-contained program control devices, or is operated completely or intermittently autonomously by an on-board computer.

[0003] In the civilian field, drones + industry applications are the real rigid demand for drones; their current applications in aerial photography, agriculture, plant protection, micro selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying and mapping, news reporting, power inspection, disaster relief, film and television shooting, creating romance and other fields have greatly expanded the use of drones themselves. Developed countries are also actively expanding industry applications and developing drone technology.

[0004] The use of drones in disaster relief is of great significance. The current firefighting drones have average firefighting capabilities. Therefore, it is necessary to provide a drone with strong firefighting capabilities. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a firefighting drone with strong firefighting capability and a working method thereof.

[0006] To solve the above problems, the present invention adopts the following technical solutions:

[0007] A firefighting drone, comprising an annular frame, a drone main control and a battery, wherein the annular frame is a drone power mechanism that provides power to the frame, a connecting frame is provided on the annular frame, a heat-insulating chassis is provided at the end of the connecting frame, the drone main control and the battery are both located in the heat-insulating chassis, a conical installation space is formed between the connecting frame, the heat-insulating chassis and the annular frame, a jet fire extinguishing device that provides power to the annular frame when working is inserted into the installation space, the jet fire extinguishing device is detachably connected to the heat-insulating chassis, a limit plate is provided on the bottom surface of the annular frame, and the limit plate is connected to the annular frame The frame is rotatably connected, a limiting groove matched with the limiting plate is arranged on the side of the jet fire extinguishing device, the jet fire extinguishing device is detachably connected to the annular frame through the limiting plate and the limiting groove, an insulating glass cover is arranged on the insulating chassis, the insulating glass cover is arranged in a bowl shape, a sealed installation cavity is formed between the insulating chassis and the insulating glass cover, a camera is arranged in the sealed installation cavity, the UAV power mechanism, the jet fire extinguishing device and the camera are all electrically connected to the UAV main control, and the UAV power mechanism, the jet fire extinguishing device, the camera and the UAV main control are all electrically connected to the battery.

[0008] Preferably, the UAV power mechanism includes a main arm and an auxiliary arm, and the main arm and the auxiliary arm are each provided with four, and the main arm and the auxiliary arm are both distributed in a circular array, and the main arm and the auxiliary arm are both integrated with the circular frame, and the main arm and the auxiliary arm are respectively provided with a first insulation cup holder and a second insulation cup holder, and the first insulation cup holder and the second insulation cup holder are respectively provided with a first brushless motor and a second brushless motor, and the output shafts of the first brushless motor and the second brushless motor are located on the same straight line, and the output shafts of the first brushless motor and the second brushless motor are both provided with propellers, and the first brushless motor and the second brushless motor are both electrically connected to the main control and the battery of the UAV, and by configuring two upper and lower brushless motors to provide power, it can be effectively ensured that the UAV has sufficient power, and at the same time, the brushless motor is located in the insulation cup holder, which can effectively reduce the impact of the high temperature of the outside on the brushless motor in a fire environment.

[0009] Preferably, the jet fire extinguishing device includes a storage tank, one end of which is conically arranged and inserted into the installation space, the other end of which is provided with a tank mouth, a tank cover is installed on the tank mouth, a jet pipe is provided on the tank cover, the jet pipe is connected to the interior of the storage tank, an electronic flow meter and a solenoid valve are arranged on the jet pipe in sequence, a rotating nozzle is connected to the end of the jet pipe, the electronic flow meter and the solenoid valve are electrically connected to the main control of the drone, an aerosol column layer, a cooling filling layer and an ignition ring are arranged in the storage tank, and the ignition ring is located at the aerosol Between the charge layer and the cooling filling layer, the ignition ring is electrically connected to the drone main control and the battery. Once the staff determines that fire extinguishing is needed, they can send a command to enable the drone main control to start the ignition ring. A large amount of inert gas produced by the oxidation-reduction reaction of the aerosol charge layer and the cooling filling layer will spray out the effective fire extinguishing substances produced by themselves and the high-efficiency fire extinguishing medium produced by thermal decomposition from the rotating nozzle, which can have a good fire extinguishing effect. At the same time, since high-speed fluid is sprayed out during work, it can provide power for the whole, killing two birds with one stone and achieving the purpose of saving electricity.

[0010] Preferably, the rotating nozzle includes a turntable bearing, a three-way joint, a first nozzle and a second nozzle. The three-way joint and the injection pipe are fixedly connected to the turntable bearing. The injection pipe and the three-way joint are rotatably connected via the turntable bearing. The first nozzle and the second nozzle are fixedly connected to the three-way joint and are distributed in an eight-shaped shape. The rotating nozzle has good mobility, can better utilize the injection energy, avoid serious lateral deviation of the UAV, and reduce the situation of UAV out of control.

[0011] Preferably, a stirring motor is provided on the tank cover, and a ceramic insulation rod is connected to the output shaft of the stirring motor. The ceramic insulation rod passes through the tank cover and is rotatably connected to the tank cover. A stirring blade is provided on the ceramic insulation rod, and the stirring blade is located in the storage tank. The stirring blade and the ceramic insulation rod are integrally arranged. By configuring a stirring motor to stir the aerosol drug column layer and the cooling filling layer inside the storage tank, the aerosol drug column layer and the cooling filling layer can be better mixed and reacted. At the same time, due to the use of ceramic insulation rods for connection, the heat generated during the reaction can be effectively prevented from being easily transferred to the stirring motor, which is beneficial to improving the service life of the stirring motor.

[0012] Preferably, an active steering mechanism is provided on the tank cover, and the active steering mechanism includes an electric turntable and a connecting rod, the back of the electric turntable is fixedly connected to the tank cover, the movable surface of the electric turntable is fixedly connected to the connecting rod, the end of the connecting rod is fixedly connected to the three-way joint, and the connecting rod is parallel to the injection pipe. By configuring the active steering mechanism and pre-rotating the nozzle before the fluid is ejected, it can effectively avoid the drone from losing control when the fluid is ejected instantly, which is beneficial to the use of injection energy, and at the same time can make the fire extinguishing fluid evenly distributed around, which can be beneficial to improving the fire extinguishing performance.

[0013] Preferably, the tank cover is provided with a heat insulating cover, which is fixedly connected to the tank cover, and is provided with a through hole matching the injection pipe and the connecting rod. The stirring motor, solenoid valve, electronic flow meter and electric turntable are all located in the heat insulating cover. By configuring the heat insulating cover, it is possible to effectively prevent the flame of the external environment from directly contacting the stirring motor, solenoid valve and electronic flow meter, and effectively prevent the stirring motor, solenoid valve and electronic flow meter from being burned.

[0014] Preferably, the storage tank comprises a stainless steel inner liner and a carbon fiber outer shell, a thermal insulation pad is arranged on the back of the carbon fiber outer shell, the thermal insulation pad is fixedly connected to the carbon fiber outer shell, the stainless steel inner liner is suspended in the carbon fiber outer shell through the thermal insulation pad, a threaded rod is arranged on the carbon fiber outer shell, and a screw hole matching the threaded rod is arranged on the thermal insulation chassis. The storage tank is light in weight and can effectively reduce the overall burden.

[0015] Preferably, the annular frame, main arm, auxiliary arm, propeller and carbon fiber shell are all provided with a thermal insulation coating. By configuring the thermal insulation coating, a good thermal insulation effect can be achieved, which can effectively prevent the annular frame, main arm, auxiliary arm, propeller and carbon fiber shell from being deformed due to overheating.

[0016] The present invention also provides a working method of a firefighting drone, comprising the following steps:

[0017] 1) Send instructions to the drone master control through the remote control to control the drone power mechanism to drive the entire drone into the fire scene;

[0018] 2) Observe the fire scene through the camera and determine the location of the flames;

[0019] 3) Send instructions to the drone main control through the remote control to control the drone power mechanism so that the entire drone approaches the fire source;

[0020] 4) After approaching the fire source, send the command to the drone main control through the remote control, and then the drone main control will start the spray fire extinguishing device to spray out the fire extinguishing fluid. After the fire extinguishing fluid is sprayed out, move the drone according to the actual fire situation.

[0021] The beneficial effects of the present invention are as follows: by adopting an aircraft composed of a UAV main control, a battery and a UAV power mechanism that provides power for the frame and carrying a jet fire extinguishing device with a fire extinguishing function, the entire aircraft can be driven into the fire scene, and according to the conditions at the fire scene, the aircraft can be driven close to the fire source, and then the jet fire extinguishing device is started to spray out the fluid with the fire extinguishing function, thereby achieving the effect of extinguishing the fire. However, in the process of fire extinguishing, since it is equipped with a camera, the aircraft can be controlled to continuously approach each fire source for fire extinguishing according to the conditions at the scene, and has excellent firefighting ability. At the same time, the fluid spraying can provide a certain amount of power for the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 The figure is a schematic diagram of the overall structure of a firefighting drone of the present invention.

[0024] Figure 2 The figure is a schematic diagram of the partial structure of a firefighting drone of the present invention.

[0025] Figure 3 The figure is a schematic diagram of the partial structure of a firefighting drone of the present invention.

[0026] Figure 4 The present invention is a schematic structural diagram of a jet fire extinguishing device of a firefighting drone.

[0027] Figure 5 The present invention is a partial structural schematic diagram of a jet fire extinguishing device of a firefighting drone.

[0028] Figure 6The present invention is a partial structural schematic diagram of a jet fire extinguishing device of a firefighting drone.

[0029] In the figure:

[0030] 1. Ring frame; 3. UAV power mechanism; 4. Connecting frame; 5. Insulated chassis; 6. Spray fire extinguishing device; 7. Limiting groove; 8. Insulated glass cover; 9. Sealed installation cavity; 10. Camera; 11. Main arm; 12. Auxiliary arm; 13. First insulated cup holder; 14. Second insulated cup holder; 15. First brushless motor; 16. Second brushless motor; 17. Propeller; 18. Tank cover; 19. Injection pipe; 20. Electronic flow meter; 21. Electric Magnetic valve; 22. Rotating nozzle; 23. Aerosol charge layer; 24. Cooling filling layer; 25. Ignition ring; 26. Turntable bearing; 27. Three-way joint; 28. First nozzle; 29. ​​Second nozzle; 30. Stirring motor; 31. Ceramic insulation rod; 32. Stirring blade; 33. Storage tank; 36. Electric turntable; 37. Connecting rod; 38. Insulation cover; 39. Stainless steel liner; 40. Carbon fiber shell; 41. Heat pad; 42. Threaded rod. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the embodiments, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left end", "above", "back", "middle", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, in this specific embodiment, if the connection or fixing method between the components is not particularly described, the connection or fixing method can be conventional methods such as bolt fixing, nail pin fixing, pin shaft connection, adhesive fixing, or riveting fixing commonly used in the prior art, and therefore, it will not be described in detail in the embodiments. Example

[0034] like Figure 1-6As shown, a firefighting drone comprises an annular frame 1, a drone main control (not shown) and a battery (not shown), the annular frame 1 is a drone power mechanism 3 for providing power to the frame, a connecting frame 4 is provided on the annular frame 1, a heat-insulating chassis 5 is provided at the end of the connecting frame 4, the drone main control and the battery are both located in the heat-insulating chassis 5, a conical installation space (not shown) is formed between the connecting frame 4, the heat-insulating chassis 5 and the annular frame 1, a jet fire extinguishing device 6 for providing power to the annular frame 1 when working is inserted into the installation space, the jet fire extinguishing device 6 is detachably connected to the heat-insulating chassis 5, and a limit plate (not shown) is provided on the bottom surface of the annular frame 1 The limit plate is rotatably connected to the annular frame 1, a limit groove 7 matched with the limit plate is arranged on the side of the jet fire extinguishing device 6, and the jet fire extinguishing device 6 is detachably connected to the annular frame 1 through the limit plate and the limit groove. A heat insulating glass cover 8 is arranged on the heat insulating chassis 5, and the heat insulating glass cover 8 is arranged in a bowl shape. A sealed installation cavity 9 is formed between the heat insulating chassis 5 and the heat insulating glass cover 8, and a camera 10 is arranged in the sealed installation cavity 9. The UAV power mechanism 3, the jet fire extinguishing device 6 and the camera 10 are all electrically connected to the UAV main control, and the UAV power mechanism 3, the jet fire extinguishing device 6, the camera 10 and the UAV main control are all electrically connected to the battery.

[0035] In this embodiment, the UAV power mechanism 3 includes a main arm 11 and an auxiliary arm 12, and the main arm 11 and the auxiliary arm 12 are each provided with four, and the main arm 11 and the auxiliary arm 12 are both distributed in a ring array, and the main arm 11 and the auxiliary arm 12 are both integrated with the ring frame 1, and the main arm 11 and the auxiliary arm 12 are respectively provided with a first insulation cup holder 13 and a second insulation cup holder 14, and the first insulation cup holder 13 and the second insulation cup holder 14 are respectively provided with a first brushless motor 1 5 and a second brushless motor 16, the output shafts of the first brushless motor 15 and the second brushless motor 16 are located on the same straight line, the output shafts of the first brushless motor 15 and the second brushless motor 16 are both provided with propellers 17, the first brushless motor 15 and the second brushless motor 16 are both electrically connected to the drone main control and the battery, and the upper and lower brushless motors are configured to provide power, which can effectively ensure that the drone has sufficient power, and the brushless motor is located in the heat-insulating cup holder, which can effectively reduce the impact of the external high temperature on the brushless motor in a fire environment.

[0036] In this embodiment, the jet fire extinguishing device 6 includes a storage tank 33, one end of which is conically arranged and inserted into the installation space, and the other end of the storage tank is provided with a tank mouth (not shown), a tank cover 18 is installed on the tank mouth, and a jet pipe 19 is provided on the tank cover 18, and the jet pipe 19 is connected to the inside of the storage tank, and an electronic flow meter 20 and a solenoid valve 21 are sequentially arranged on the jet pipe 19, and a rotating nozzle 22 is connected to the end of the jet pipe 19, and the electronic flow meter 20 and the solenoid valve 21 are both electrically connected to the main control of the drone, and an aerosol column layer 23, a cooling filling layer 24 and an ignition ring 2 are arranged in the storage tank. 5. The ignition ring 25 is located between the aerosol column layer 23 and the cooling filling layer 24. The ignition ring 25 is electrically connected to the drone main control and the battery. Once the staff determines that fire extinguishing is needed, they can send a command to enable the drone main control to start the ignition ring 25. A large amount of inert gas generated by the redox reaction of the aerosol column layer 23 and the cooling filling layer 24 will eject the effective fire extinguishing substances produced by itself and the high-efficiency fire extinguishing medium produced by thermal decomposition from the rotating nozzle, which can achieve a good fire extinguishing effect. At the same time, since high-speed fluid is ejected during work, it can provide power for the whole, killing two birds with one stone and achieving the purpose of saving electric energy.

[0037] In this embodiment, the rotating nozzle 22 includes a turntable bearing 26, a three-way joint 27, a first nozzle 28 and a second nozzle 29. The three-way joint 27 and the injection pipe 19 are fixedly connected to the turntable bearing 26. The injection pipe 19 and the three-way joint 27 are rotatably connected through the turntable bearing 26. The first nozzle 28 and the second nozzle 29 are fixedly connected to the three-way joint 27 and are distributed in an eight-shaped shape. The rotating nozzle has good mobility and can better utilize the injection energy, avoid serious lateral deviation of the drone, and reduce the situation of the drone losing control.

[0038] In the present embodiment, a stirring motor 30 is provided on the tank cover 18, and a ceramic insulation rod 31 is connected to the output shaft of the stirring motor 30. The ceramic insulation rod 31 passes through the tank cover 18 and is rotatably connected to the tank cover 18. A stirring blade 32 is provided on the ceramic insulation rod 31, and the stirring blade 32 is located in the storage tank. The stirring blade 32 and the ceramic insulation rod 31 are integrally arranged. By configuring the stirring motor 30 to stir the aerosol drug column layer 23 and the cooling filling layer 24 inside the storage tank 33, the aerosol drug column layer 23 and the cooling filling layer 24 can be better mixed and reacted. At the same time, due to the use of the ceramic insulation rod 31 for connection, the heat generated during the reaction can be effectively prevented from being easily transferred to the stirring motor, which is beneficial to improving the service life of the stirring motor.

[0039] In this embodiment, an active steering mechanism is provided on the tank cover 18, and the active steering mechanism includes an electric turntable 36 and a connecting rod 37. The back of the electric turntable 36 is fixedly connected to the tank cover 18, and the movable surface of the electric turntable 36 is fixedly connected to the connecting rod 37. The end of the connecting rod 37 is fixedly connected to the three-way joint 27, and the connecting rod 37 is parallel to the injection pipe 19. By configuring the active steering mechanism, the nozzle is rotated in advance before the fluid is ejected, which can effectively avoid the drone from losing control when the fluid is ejected instantly, which is beneficial to the use of injection energy, and at the same time, the fire-extinguishing fluid can be evenly distributed around, which can be beneficial to improving the fire-extinguishing performance.

[0040] In this embodiment, a heat insulating cover 38 is provided on the tank cover 18, and the heat insulating cover 38 is fixedly connected to the tank cover 18. The heat insulating cover 38 is provided with a through hole (not shown) matching the injection pipe 19 and the connecting rod. The stirring motor 30, the solenoid valve 21, the electronic flow meter 20 and the electric turntable 36 are all located in the heat insulating cover 38. By configuring the heat insulating cover 38, it is possible to effectively prevent the flame of the external environment from directly contacting the stirring motor 30, the solenoid valve 21 and the electronic flow meter 20, and effectively prevent the stirring motor 30, the solenoid valve 21 and the electronic flow meter 20 from being burned.

[0041] In this embodiment, the storage tank 33 includes a stainless steel inner liner 39 and a carbon fiber outer shell 40, a thermal insulation pad 41 is provided on the back of the carbon fiber outer shell 40, and the thermal insulation pad 41 is fixedly connected to the carbon fiber outer shell 40. The stainless steel inner liner 39 is suspended in the carbon fiber outer shell 40 through the thermal insulation pad 41, and a threaded rod 42 is provided on the carbon fiber outer shell 40. The thermal insulation chassis 5 is provided with a screw hole (not shown) matched with the threaded rod 42. The storage tank is light in weight and can effectively reduce the overall burden.

[0042] In this embodiment, the annular frame 1, the main arm 11, the auxiliary arm 12, the propeller 17 and the carbon fiber shell 40 are all provided with a thermal insulation coating (not shown in the figure). By configuring the thermal insulation coating, a good thermal insulation effect can be achieved, and deformation of the annular frame, the main arm, the auxiliary arm, the propeller and the carbon fiber shell due to overheating can be effectively avoided.

[0043] The present invention also provides a working method of a firefighting drone, comprising the following steps:

[0044] 1) Send instructions to the drone master control through the remote control to control the drone power mechanism to drive the entire drone into the fire scene;

[0045] 2) Observe the fire scene through the camera and determine the location of the flames;

[0046] 3) Send instructions to the drone main control through the remote control to control the drone power mechanism so that the entire drone approaches the fire source;

[0047] 4) After approaching the fire source, send the command to the drone main control through the remote control, and then the drone main control will start the spray fire extinguishing device to spray out the fire extinguishing fluid. After the fire extinguishing fluid is sprayed out, move the drone according to the actual fire situation.

[0048] The beneficial effects of the present invention are as follows: by adopting an aircraft composed of a UAV main control, a battery and a UAV power mechanism that provides power for the frame and carrying a jet fire extinguishing device with a fire extinguishing function, the entire aircraft can be driven into the fire scene, and according to the conditions at the fire scene, the aircraft can be driven close to the fire source, and then the jet fire extinguishing device is started to spray out the fluid with the fire extinguishing function, thereby achieving the effect of extinguishing the fire. However, in the process of fire extinguishing, since it is equipped with a camera, the aircraft can be controlled to continuously approach each fire source for fire extinguishing according to the conditions at the scene, and has excellent firefighting ability. At the same time, the fluid spraying can provide a certain amount of power for the aircraft.

[0049] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention.

Claims

1. A firefighting drone, characterized by: The invention comprises an annular frame, a drone main control and a battery, wherein the annular frame is a drone power mechanism for providing power to the frame, a connecting frame is arranged on the annular frame, a heat-insulating chassis is arranged at the end of the connecting frame, the drone main control and the battery are both located in the heat-insulating chassis, a conical installation space is formed between the connecting frame, the heat-insulating chassis and the annular frame, a jet fire extinguishing device for providing power to the annular frame when working is inserted into the installation space, the jet fire extinguishing device is detachably connected to the heat-insulating chassis, a limit plate is arranged on the bottom surface of the annular frame, and the limit plate is rotated with the annular frame The side of the jet fire extinguishing device is provided with a limiting groove matched with the limiting piece, and the jet fire extinguishing device is detachably connected to the annular frame through the limiting piece and the limiting groove. A heat insulating glass cover is provided on the heat insulating chassis, and the heat insulating glass cover is provided in a bowl shape. A sealed installation cavity is formed between the heat insulating chassis and the heat insulating glass cover, and a camera is provided in the sealed installation cavity. The UAV power mechanism, the jet fire extinguishing device and the camera are all electrically connected to the UAV main control, and the UAV power mechanism, the jet fire extinguishing device, the camera and the UAV main control are all electrically connected to the battery; The UAV power mechanism includes a main arm and an auxiliary arm, four of the main arms and the auxiliary arms are provided, the main arms and the auxiliary arms are distributed in a ring array, the main arms and the auxiliary arms are integrated with the ring frame, the main arm and the auxiliary arm are respectively provided with a first heat-insulating cup holder and a second heat-insulating cup holder, the first heat-insulating cup holder and the second heat-insulating cup holder are respectively provided with a first brushless motor and a second brushless motor, the output shafts of the first brushless motor and the second brushless motor are located on the same straight line, the output shafts of the first brushless motor and the second brushless motor are both provided with propellers, and the first brushless motor and the second brushless motor are both electrically connected to the main control and the battery of the UAV; The jet fire extinguishing device includes a storage tank, one end of which is conically arranged and inserted into the installation space, the other end of which is provided with a tank mouth, a tank cover is installed on the tank mouth, a jet pipe is provided on the tank cover, the jet pipe is connected with the interior of the storage tank, an electronic flow meter and a solenoid valve are arranged on the jet pipe in sequence, a rotating nozzle is connected to the end of the jet pipe, the electronic flow meter and the solenoid valve are both electrically connected to the main control of the drone, an aerosol column layer, a cooling filling layer and an ignition ring are arranged in the storage tank, the ignition ring is located between the aerosol column layer and the cooling filling layer, and the ignition ring is electrically connected to the main control of the drone and the battery; The rotating nozzle comprises a turntable bearing, a three-way joint, a first nozzle and a second nozzle, the three-way joint and the injection pipe are both fixedly connected to the turntable bearing, the injection pipe and the three-way joint are rotatably connected through the turntable bearing, the first nozzle and the second nozzle are both fixedly connected to the three-way joint and are distributed in an eight-shaped shape; The tank cover is provided with a stirring motor, the output shaft of which is connected with a ceramic insulation rod, which passes through the tank cover and is rotatably connected to the tank cover, and the ceramic insulation rod is provided with a stirring blade, which is located in the storage tank, and the stirring blade and the ceramic insulation rod are integrally arranged.

2. A firefighting drone according to claim 1, characterized in that: The tank cover is provided with an active steering mechanism, which includes an electric turntable and a connecting rod. The back of the electric turntable is fixedly connected to the tank cover, the movable surface of the electric turntable is fixedly connected to the connecting rod, the end of the connecting rod is fixedly connected to the three-way joint, and the connecting rod is parallel to the injection pipe.

3. A firefighting drone according to claim 2, characterized in that: The tank cover is provided with a heat insulation cover, which is fixedly connected to the tank cover, and is provided with perforations matched with the injection pipe and the connecting rod. The stirring motor, solenoid valve, electronic flow meter and electric turntable are all located in the heat insulation cover.

4. A firefighting drone according to claim 3, characterized in that: The storage tank includes a stainless steel inner liner and a carbon fiber outer shell. A heat insulating pad is arranged on the back of the carbon fiber outer shell. The heat insulating pad is fixedly connected to the carbon fiber outer shell. The stainless steel inner liner is suspended in the carbon fiber outer shell through the heat insulating pad. A threaded rod is arranged on the carbon fiber outer shell. The heat insulating chassis is provided with screw holes matching the threaded rod.

5. A firefighting drone according to claim 4, characterized in that: The annular frame, the main machine arm, the auxiliary machine arm, the propeller and the carbon fiber shell are all provided with a heat insulation coating.

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