CN219815076U - Flying fire extinguisher - Google Patents

Abstract

The utility model discloses a flying fire extinguisher, which comprises a frame, a vertical multi-axis aircraft arranged on the frame, and a fire extinguishing water container arranged at the bottom end of the frame; the vertical multi-axis aircraft can hover and rotate around the vertical axis of the vertical multi-axis aircraft and is arranged on the rack, and the rotation axis of the vertical multi-axis aircraft is collinear with the axis of the fire extinguishing water container; the middle part of the frame is provided with a controller, and the vertical multi-axis aircraft and the fire extinguishing water container are electrically connected with the controller; the fire-extinguishing water container is in a conical bottle shape with a small upper part and a large lower part, the bottom end of the fire-extinguishing water container is provided with a water inlet and a water outlet, the water inlet is controlled by a buoyancy control switch, the water outlet is controlled by an electric signal control switch, and the side wall of the fire-extinguishing water container is provided with a water outlet for discharging surplus water. The utility model can realize hovering water filling on the water surface, is beneficial to reducing wind flow blocking force, improves water filling quantity, and is beneficial to stabilizing the aircraft.

Description

Flying fire extinguisher

Technical Field

The utility model relates to the technical field of unmanned fire-extinguishing aircrafts, in particular to a flying fire extinguisher.

Background

The existing flight fire extinguishing equipment mostly adopts a helicopter to carry a bucket, the bucket descends and hovers after flying to the upper part of a water source, after the bucket below is deeply in the water surface and is filled with water, the helicopter flies upwards to take the bucket away from the water surface and carries the bucket to the upper part of a fire point for fire extinguishing treatment, the defect of the mode is that the large-scale aircrafts such as the fire extinguishing helicopter or the large-scale helicopter are required, the cost is high, the large-scale popularization is not facilitated, operators are required to operate on the helicopter, the automatic water receiving and automatic fire extinguishing function cannot be realized, the existing unmanned aerial vehicle equipment can realize water taking operation while carrying the bucket, but the bucket can generate axial deflection force when water is filled, so that the unmanned aerial vehicle cannot realize stable hovering, and then the existing unmanned aerial vehicle mostly continuously flies forwards after descending the flight height, the water taking operation is completed in the flight process, the mode has less water taking quantity, and the repeated operation times are more, and the requirement of quick fire extinguishing cannot be met.

Disclosure of Invention

Based on the problems in the prior art, the utility model provides the flying fire extinguisher, which can realize hovering and water filling on the water surface, is beneficial to reducing wind flow blocking force, improves water filling amount and is beneficial to stabilizing an aircraft.

In order to solve the problems in the prior art, the utility model adopts the following technical scheme:

the utility model provides a flying fire extinguisher, which comprises a frame, a vertical multi-axis aircraft arranged on the frame, and a fire extinguishing water container arranged at the bottom end of the frame; the vertical multi-axis aircraft can hover and rotate around the vertical axis of the vertical multi-axis aircraft and is arranged on the rack, and the rotation axis of the vertical multi-axis aircraft is collinear with the axis of the fire extinguishing water container; the middle part of the frame is provided with a controller, and the vertical multi-axis aircraft and the fire extinguishing water container are electrically connected with the controller; the fire-extinguishing water container is in a conical bottle shape with a small upper part and a large lower part, the bottom end of the fire-extinguishing water container is provided with a water inlet and a water outlet, the water inlet is controlled by a buoyancy control switch, the water outlet is controlled by an electric signal control switch, and the side wall of the fire-extinguishing water container is provided with a water outlet for discharging surplus water.

Preferably, a main shaft is vertically arranged on the frame, the top of the fire extinguishing water container is connected with the bottom of the main shaft, the vertical multi-axis aircraft is connected with the main shaft, the vertical multi-axis aircraft comprises a plurality of groups of screw assemblies rotating around a vertical axis, and the screw assemblies are coaxial with the main shaft or uniformly distributed annularly around the main shaft.

In another aspect, the propeller assemblies are provided with four groups and evenly distributed annularly around the axis of the main shaft, each group of propeller assemblies comprises a first rotating shaft, a first propeller and a first rotating driver, the first rotating shaft is vertically and rotatably arranged at one end, far away from the main shaft, of the frame, the first propeller is fixedly arranged on the first rotating shaft, the first rotating driver is located below the first propeller and is fixedly connected with the frame, the output end of the first rotating driver is in transmission connection with the first rotating shaft, and the four groups of first propellers are located at the same horizontal height.

In another aspect, the propeller assembly is provided with five groups, wherein four groups are first propeller mechanisms for controlling the direction, the other group is second propeller mechanisms for providing lifting force, the four groups of first propeller mechanisms are located below the second propeller mechanisms and are located at the same horizontal height, the four groups of first propeller mechanisms are respectively arranged annularly around the main shaft, the second propeller mechanisms are coaxially arranged with the main shaft, the second propeller mechanisms comprise first upper propellers and first lower propellers which can respectively and independently rotate, the first propeller mechanisms comprise direction propellers capable of rotating around the axis of the first upper propellers, and the rotation directions of the first upper propellers and the first lower propellers are opposite.

In another aspect, the bottom of the fire-extinguishing water container is provided with a plurality of first arc-shaped water tanks which are annularly arranged, the water inlet is arranged at the center of the bottom of the fire-extinguishing water container, the water outlet is in one-to-one correspondence with the first arc-shaped water tanks and is positioned at the bottom of each first arc-shaped water tank, the water outlet is in one-to-one correspondence with the first arc-shaped water tanks and is positioned at the top of each first arc-shaped water tank, the water outlet is provided with an electromagnetic valve, and the water inlet is provided with a buoyancy plate.

In another aspect, the bottom of the fire extinguishing water container is an annular water storage tank, the water inlet is positioned in the middle of the annular water storage tank, the buoyancy plate is arranged at the water inlet, the water outlet is annularly arranged at the bottom of the fire extinguishing water container and is provided with electromagnetic valves, and the water outlet is positioned above the top end of the water inlet.

In another aspect, the four sets of propeller assemblies are annularly arranged around the axis, the four sets of propeller assemblies comprise two sets of third propeller mechanisms positioned above and two sets of fourth propeller mechanisms positioned below the third propeller mechanisms, the two sets of third propeller mechanisms comprise two second upper propellers rotating in the same direction, the two sets of fourth propeller mechanisms comprise two second lower propellers rotating in the same direction, and the rotating direction of the second upper propellers is opposite to the rotating direction of the second lower propellers.

Preferably, the bottom of the fire extinguishing water container is provided with a plurality of second arc-shaped water tanks which are annularly distributed around the main shaft, one side, far away from the rack, of each second arc-shaped water tank is obliquely arranged outwards, one side, close to the rack, of each second arc-shaped water tank is vertically arranged, one side, close to the rack, of each second arc-shaped water tank is larger than the vertical wind sweeping range of each second upper propeller and each second lower propeller, each water inlet, each water outlet and each water outlet are in one-to-one correspondence with each second arc-shaped water tank, each water inlet and each water outlet are arranged at the bottom of each second arc-shaped water tank, each water outlet is arranged on each inclined surface of each second arc-shaped water tank, and each connecting part of each second arc-shaped water tank and each rack is hollowed.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the vertical multi-axis aircraft and the fire extinguishing water container are connected through the frame, the vertical multi-axis aircraft can be in a hovering state when the fire extinguishing water container is used for water filling operation, and then take off again after a certain amount of water is filled at one time, the water spraying operation is carried out in a mode of remote control or automatic induction and the like to the upper air of a fire point, and the aircraft automatically washes the flying back water receiving part to receive water after the water in the fire extinguishing water container is emptied, so that an automatic fire extinguishing task can be executed, the fire extinguishing efficiency is improved, the whole machine is used for rotating and hovering water on the water surface, or the gravity is used for hovering water filling, the stability of the aircraft during water receiving is improved, and the quick water filling is facilitated.

2. The fire extinguishing water container is in a conical bottle shape with a small upper part and a large lower part, so that air flow can be facilitated, the influence of air in the water filling process on the state of the fire extinguishing water container is reduced, and the stability of the vertical multi-axis aircraft can be improved while the water filling amount is improved.

Drawings

FIG. 1 is a schematic perspective view of a flying fire extinguisher;

FIG. 2 is a top view of a first embodiment of a flying fire extinguisher;

FIG. 3 is a front view of a first embodiment of a flying fire extinguisher;

FIG. 4 is a perspective view of a second embodiment of a flying extinguisher;

FIG. 5 is a top view of a second embodiment of a flying fire extinguisher;

FIG. 6 is a front view of a second embodiment of a flying fire extinguisher;

FIG. 7 is a perspective cross-sectional view of a fire extinguishing water container in a third embodiment of a flying fire extinguisher;

FIG. 8 is a perspective cross-sectional view of a fire extinguishing water container in a fourth embodiment of a flying fire extinguisher;

FIG. 9 is a perspective view of a fifth embodiment of a flying extinguisher;

FIG. 10 is a top view of a fifth embodiment of a flying fire extinguisher;

fig. 11 is a cross-sectional view of a fifth embodiment of a flying fire extinguisher.

The reference numerals in the figures are:

1-a frame;

11-a main shaft;

2-vertical multiaxis aircraft;

21-a propeller assembly; 211-a first rotation axis; 212-a first propeller; 213-a first rotary drive;

22-a first propeller mechanism; 221-direction propeller; 222-a second rotation axis; 223-a second rotary drive;

23-a second propeller mechanism; 231-a first upper propeller; 232-a first lower propeller; 233-a third rotation axis; 234-sleeve; 235-hollow motor; 236-a third rotary drive;

24-a third propeller mechanism; 241-second upper propeller; 242-fourth axis of rotation; 243-fourth rotary drives;

25-fourth propeller mechanism; 251-a second lower propeller; 252-a fifth rotation axis; 253-fifth rotary drive;

3-fire extinguishing water container;

31-a water inlet; 311-buoyancy plates;

32-a water outlet; 321-an electromagnetic valve;

33-a drain port;

34-a first arcuate tank;

35-an annular water storage tank;

36-a second arc-shaped water tank;

4-controller.

Detailed Description

The utility model will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the utility model and the specific objects and functions achieved.

A flying fire extinguisher as shown in fig. 1-8, which comprises a frame 1, a vertical multi-axis aircraft 2 arranged on the frame 1, and a fire extinguishing water container 3 arranged at the bottom end of the frame 1; the vertical multi-axis aircraft 2 is capable of hovering and is arranged on the frame 1 in a rotating way around the vertical axis of the vertical multi-axis aircraft 2, and the rotating axis of the vertical multi-axis aircraft 2 is collinear with the axis of the fire extinguishing water container 3; the middle part of the frame 1 is provided with a controller 4, and the vertical multi-axis aircraft 2 and the fire extinguishing water container 3 are electrically connected with the controller 4; the fire extinguishing water container 3 is in a conical bottle shape with a small upper part and a large lower part, the bottom end of the fire extinguishing water container 3 is provided with a water inlet 31 and a water outlet 32, the water inlet 31 is controlled by a buoyancy control switch, the water outlet 32 is controlled by an electric signal control switch, and the side wall of the fire extinguishing water container 3 is provided with a water outlet 33 for discharging surplus water.

According to the utility model, the vertical multi-axis aircraft 2 and the fire extinguishing water container 3 are connected through the frame 1, the vertical multi-axis aircraft 2 can be in a hovering state when the fire extinguishing water container 3 is used for water filling operation, take off again after a certain amount of water is filled at one time, carry out water spraying operation to the space above a fire point in a remote control or automatic induction mode and the like, and the aircraft automatically washes the position where the water is returned after the water in the fire extinguishing water container 3 is emptied to collect water, so that an automatic fire extinguishing task can be executed, the fire extinguishing efficiency is improved, and the stability of the aircraft when the water is collected is improved.

The fire extinguishing water container 3 is in a conical bottle shape with a small upper part and a large lower part, so that air flow can be facilitated, the influence of air in the water filling process on the state of the fire extinguishing water container 3 is reduced, and the stability of the vertical multi-axis aircraft 2 can be improved while the water filling amount is improved.

The machine frame 1 is vertically provided with a main shaft 11, the top of the fire extinguishing water container 3 is connected with the bottom of the main shaft 11, the vertical multi-axis aircraft 2 is connected with the main shaft 11, the vertical multi-axis aircraft 2 comprises a plurality of groups of screw assemblies 21 rotating around a vertical axis, and the screw assemblies 21 are coaxial with the main shaft 11 or uniformly distributed annularly around the main shaft 11.

The main shaft 11 on the frame 1 is used for integrally installing the vertical multi-shaft aircraft 2 and the fire extinguishing water container 3 in a symmetrical state, so that equipment is more stable during water receiving operation.

As shown in fig. 1-3, in the first embodiment, four sets of propeller assemblies 21 are provided and are uniformly distributed annularly around the axis of the main shaft 11, each set of propeller assemblies 21 includes a first rotating shaft 211, a first propeller 212 and a first rotating driver 213, the first rotating shaft 211 is vertically and rotatably installed at one end of the frame 1 far away from the main shaft 11, the first propeller 212 is fixedly installed on the first rotating shaft 211, the first rotating driver 213 is located below the first propeller 212, the first rotating driver 213 is fixedly connected with the frame 1, the output end of the first rotating driver 213 is in transmission connection with the first rotating shaft 211, and the four sets of first propellers 212 are located at the same horizontal level.

In the first embodiment, the first propellers 212 in the propeller assembly 21 disposed clockwise along the main shaft 11 are a first propeller No. 1, a first propeller No. 2, a first propeller No. 3, a first propeller 212, and a first propeller No. 4 in this order 212; the rotational speeds of the first propellers 212 and 212 are the same, and when the rotational speeds of the first propellers 212 and 212 are low, the rotational speed difference is generated by the whole vertical multi-axis aircraft 2, the whole aircraft can automatically rotate like a gyroscope and can not topple when the fire extinguishing water container 3 is filled with water, the capability of stabilizing the water filling of the aircraft in an upright state is achieved, the rotational speeds of all the first propellers 212 are kept consistent after the water filling is carried out, and then the vertical multi-axis aircraft 2 is controlled to take off with the fire extinguishing water container 3 filled with water, so that the water filling quantity is improved, and the aircraft can be stabilized.

As shown in fig. 4-6, in the second embodiment, the propeller assembly 21 is provided with five groups, four groups are first propeller 212 mechanisms for controlling the direction, the other group is second propeller mechanism 23 for providing lift force, the four groups of first propeller 212 mechanisms are located below the second propeller mechanism 23 and at the same horizontal level, the four groups of first propeller 212 mechanisms are respectively arranged annularly around the main shaft 11, the second propeller mechanism 23 is arranged coaxially with the main shaft 11, the second propeller mechanism 23 comprises a first upper propeller 231 and a first lower propeller 232 which can respectively and independently rotate, the first propeller 212 mechanism comprises a first direction propeller 221 which can rotate around the axis of the first upper propeller 231 and the first lower propeller 232, and the rotation directions of the first upper propeller 231 and the first lower propeller 232 are opposite.

In the second embodiment, the opposite rotation directions of the first upper propeller 231 and the first lower propeller 232 have the function that, first, the rotational force hedging can stabilize the aircraft flight; second, when the water is automatically filled under the driving of gravity, the rotation speed of the first upper propeller 231 or the first lower propeller 232 is reduced, so that the whole aircraft can automatically feed water in an upright state, and the first upper propeller 231 or the first lower propeller 232 with lower rotation speed is accelerated to high speed after the aircraft is filled with water, so that the rotation speed of the first upper propeller 231 or the first lower propeller 232 is consistent with that of the other propeller, and the floating operation is realized.

The steering propeller 221 in the first propeller 212 mechanism has both a lifting function and a direction adjusting function, i.e., a gyroscopic rotation about the axis of the main shaft 11 to maintain stable performance.

The first propeller 212 mechanism further comprises a second rotating shaft 222 and a second rotating driver 223, the second rotating shaft 222 is vertically and rotatably arranged at one end, far away from the main shaft 11, of the frame 1, the directional propeller 221 is fixedly arranged on the second rotating shaft 222, the second rotating driver 223 is located below the second propeller, the second rotating driver 223 is fixedly connected with the frame 1, and the output end of the second rotating driver 223 is in transmission connection with the second rotating shaft 222.

The second propeller mechanism 23 further comprises a third rotating shaft 233, a sleeve 234, a hollow motor 235 and a third rotary driver 236, wherein the third rotating shaft 233 is rotatably and vertically arranged above the main shaft 11, the sleeve 234 is sleeved on the third rotating shaft 233, the first upper propeller 231 is fixedly connected with the top end of the third rotating shaft 233, the bottom end of the third rotating shaft 233 is in transmission connection with the third rotary driver 236, the first lower propeller 232 is fixedly connected with the top end of the sleeve 234, and the hollow motor 235 is in transmission connection with the bottom end of the sleeve 234.

In the third embodiment shown in fig. 7, a plurality of first arc-shaped water tanks 34 are arranged at the bottom of the fire-extinguishing water container 3 in a ring shape, water inlets are arranged at the center of the bottom of the fire-extinguishing water container 3, water outlets 32 are in one-to-one correspondence with the first arc-shaped water tanks 34, the water outlets 32 are positioned at the bottom of each first arc-shaped water tank 34, water outlets 33 are in one-to-one correspondence with the first arc-shaped water tanks 34, water outlets 33 are positioned at the top of each first arc-shaped water tank 34, electromagnetic valves 321 are arranged at the water outlets 32, and buoyancy plates 311 are arranged at the water inlets.

In the third embodiment, a plurality of arc-shaped first arc-shaped water tanks 34 distributed at the bottom of the fire-extinguishing water container 3 can separate water filled into the fire-extinguishing water container 3, overall stability of the fire-extinguishing water container 3 during water feeding is improved, water flows uniformly enter each first arc-shaped water tank 34 in the fire-extinguishing water container 3, meanwhile, a plurality of first arc-shaped water tanks 34 can synchronously carry out sprinkling operation during water discharging, a water outlet 33 can automatically control water filling amount, in the initial stage of water filling, the water outlet 33 is deep into water, water flows not only enter from a water inlet, but also enter from the water outlet 33, water inlet efficiency is improved, redundant water is discharged from the water outlet 33 after the unmanned aerial vehicle drives the fire-extinguishing water container 3 to fly after full, normal load of an aircraft in the flight process is guaranteed, and stability and service life are improved.

In the fourth embodiment shown in fig. 8, the bottom of the fire extinguishing water container 3 is an annular water storage tank 35, the water inlet is positioned in the middle of the annular water storage tank 35, the buoyancy plate 311 is arranged at the water inlet, the water outlet 32 is annularly arranged at the bottom of the fire extinguishing water container 3 and is provided with electromagnetic valves 321, and the water outlet 33 is positioned above the top end of the water inlet.

In the fourth embodiment, compared with the third embodiment, the present embodiment has a simple structure, low design cost, easy large-scale popularization, and simple operation, and can also realize the functions of automatic water filling and automatic water draining of the foundation.

As shown in fig. 9-11, in the fifth embodiment, the propeller assembly 21 is provided with four groups, the four groups of propeller assemblies 21 are annularly arranged around the axis, the four groups of propeller assemblies 21 include two groups of third propeller mechanisms 24 located above and two groups of fourth propeller mechanisms 25 located below the third propeller mechanisms 24, the two groups of third propeller mechanisms 24 include two second upper propellers 241 rotating in the same direction, the two groups of fourth propeller mechanisms 25 include two second lower propellers 251 rotating in the same direction, and the rotation direction of the second upper propellers 241 is opposite to the rotation direction of the second lower propellers 251.

In the fifth embodiment, the double-layer design of the second lower propeller 251 and the second upper propeller 241 is advantageous for the distance close to the blade, reducing the overall diameter, concentrating the wind, improving the lift and reducing the volume of the apparatus.

The third propeller mechanism 24 further includes a fourth rotating shaft 242 and a fourth rotating driver 243, the fourth rotating shaft 242 is vertically rotatably mounted at one end of the frame 1 far away from the main shaft 11, the second upper propeller 241 is fixedly mounted on the fourth rotating shaft 242, and the output end of the fourth rotating driver 243 is in transmission connection with the fourth rotating shaft 242.

The fourth propeller mechanism 25 further includes a fifth rotating shaft 252 and a fifth rotating driver 253, the fifth rotating shaft 252 is vertically and rotatably mounted at one end of the frame 1 far away from the main shaft 11, the second lower propeller 251 is fixedly mounted on the fifth rotating shaft 252, and an output end of the fifth rotating driver 253 is in transmission connection with the fifth rotating shaft 252.

The bottom of fire extinguishing water container 3 is equipped with a plurality of second arc water tank 36 that circle main shaft 11 annular distribution, the outside setting of one side slope of keeping away from frame 1 of second arc water tank 36, one side vertical setting that second arc water tank 36 is close to frame 1, one side that second arc water tank 36 is close to frame 1 is greater than the vertical wind scope of sweeping of second upper screw 241 and second lower screw 251, the water inlet, outlet 33, delivery port 32 all with second arc water tank 36 one-to-one, water inlet and outlet 33 set up in the bottom of second arc water tank 36, outlet 33 sets up on second arc water tank 36 inclined plane, the junction fretwork setting of second arc water tank 36 and frame 1.

The second arc-shaped water tank 36 at the bottom end of the fire extinguishing water container 3 is positioned at a position larger than the wind edge outside the blade, can be better kept stable when water is filled on water, avoid toppling over the whole, automatically feed water from the water inlet under the gravity of the frame 1, automatically take off after the water is filled, fly to the upper part of the ignition point for automatic watering, automatically close the door after emptying, return to the air and reload the water until the fire is extinguished, and the design of the second arc-shaped water tank 36 is favorable for reducing the wind flow blocking force, also improves the water filling quantity and is favorable for stabilizing the aircraft.

The foregoing examples merely illustrate one or more embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (8)

1. The flying fire extinguisher is characterized by comprising a frame (1), a vertical multi-axis aircraft (2) arranged on the frame (1), and a fire extinguishing water container (3) arranged at the bottom end of the frame (1);

the vertical multi-axis aircraft (2) can hover and rotate around the vertical axis of the vertical multi-axis aircraft (2) and is arranged on the frame (1), and the rotation axis of the vertical multi-axis aircraft (2) is collinear with the axis of the fire extinguishing water container (3);

a controller (4) is arranged in the middle of the frame (1), and the vertical multi-axis aircraft (2) and the fire extinguishing water container (3) are electrically connected with the controller (4);

the fire extinguishing water container (3) is in a conical bottle shape with a small upper part and a large lower part, the bottom end of the fire extinguishing water container (3) is provided with a water inlet (31) and a water outlet (32), the water inlet (31) is controlled by a buoyancy control switch, the water outlet (32) is controlled by an electric signal control switch, and the side wall of the fire extinguishing water container (3) is provided with a water outlet (33) for discharging surplus water.

2. A flying fire extinguisher according to claim 1, wherein the frame (1) is vertically provided with a main shaft (11), the top of the fire extinguishing water container (3) is connected with the bottom of the main shaft (11), the vertical multi-axis aircraft (2) is connected with the main shaft (11), the vertical multi-axis aircraft (2) comprises a plurality of groups of screw assemblies (21) rotating around a vertical axis, and the screw assemblies (21) are coaxial with the main shaft (11) or uniformly distributed annularly around the main shaft (11).

3. A flying fire extinguisher according to claim 2, wherein the propeller assemblies (21) are provided with four groups and are evenly distributed annularly around the axis of the main shaft (11), each group of propeller assemblies (21) comprises a first rotating shaft (211), a first propeller (212) and a first rotating driver (213), the first rotating shaft (211) is vertically and rotatably arranged at one end of the frame (1) far away from the main shaft (11), the first propeller (212) is fixedly arranged on the first rotating shaft (211), the first rotating driver (213) is positioned below the first propeller (212), the first rotating driver (213) is fixedly connected with the frame (1), and the output end of the first rotating driver (213) is in transmission connection with the first rotating shaft (211), and the four groups of first propellers (212) are positioned at the same horizontal height.

4. A flying fire extinguisher according to claim 2, wherein the propeller assembly (21) is provided with five groups, four of which are first propeller (212) mechanisms for controlling the direction, the other group is second propeller (23) for providing the lift force, the four first propeller (212) mechanisms are located below the second propeller mechanism (23) and at the same level, the four first propeller (212) mechanisms are respectively arranged annularly around the main shaft (11), the second propeller mechanism (23) is arranged coaxially with the main shaft (11), the second propeller mechanism (23) comprises a first upper propeller (231) and a first lower propeller (232) which can respectively and independently rotate, the first propeller (212) mechanism comprises a direction propeller (221) which can respectively and independently rotate around the axis of the first upper propeller (231) and the first lower propeller (232) are opposite in rotation direction.

5. A flying fire extinguisher according to any one of claims 3-4, wherein the bottom of the fire extinguishing water container (3) is provided with a plurality of first arc-shaped water tanks (34) which are annularly arranged, the water inlet is arranged at the center of the bottom of the fire extinguishing water container (3), the water outlet (32) corresponds to the first arc-shaped water tanks (34) one by one, the water outlet (32) is positioned at the bottom of each first arc-shaped water tank (34), the water outlet (33) corresponds to the first arc-shaped water tanks (34) one by one, the water outlet (33) is positioned at the top of each first arc-shaped water tank (34), the water outlet (32) is provided with an electromagnetic valve (321), and the water inlet is provided with a buoyancy plate (311).

6. A flying extinguisher according to any one of claims 3-4, wherein the bottom of the fire extinguishing water container (3) is an annular water storage tank (35), the water inlet is positioned in the middle of the annular water storage tank (35), the buoyancy plate (311) is arranged at the water inlet, the water outlet (32) is annularly arranged at the bottom of the fire extinguishing water container (3) and is provided with electromagnetic valves (321), and the water outlet (33) is positioned above the top end of the water inlet.

7. A flying fire extinguisher according to claim 2, wherein the propeller assembly (21) is provided with four groups, the four groups of propeller assemblies (21) are annularly arranged around the axis, the four groups of propeller assemblies (21) comprise two groups of third propeller mechanisms (24) located above and two groups of fourth propeller mechanisms (25) located below the third propeller mechanisms (24), the two groups of third propeller mechanisms (24) comprise two second upper propellers (241) rotating in the same direction, the two groups of fourth propeller mechanisms (25) comprise two second lower propellers (251) rotating in the same direction, and the rotation direction of the second upper propellers (241) is opposite to the rotation direction of the second lower propellers (251).

8. The flying fire extinguisher according to claim 7, wherein the bottom of the fire extinguishing water container (3) is provided with a plurality of second arc-shaped water tanks (36) which are distributed annularly around the main shaft (11), one side, far away from the frame (1), of each second arc-shaped water tank (36) is arranged obliquely outwards, one side, close to the frame (1), of each second arc-shaped water tank (36) is vertically arranged, one side, close to the frame (1), of each second arc-shaped water tank (36) is larger than the vertical wind sweeping range of each second upper propeller (241) and each second lower propeller (251), each water inlet, each water outlet (33) and each water outlet (32) are in one-to-one correspondence with each second arc-shaped water tank (36), each water inlet and each water outlet (33) are arranged at the bottom of each second arc-shaped water tank (36), each water outlet (33) is arranged on the inclined surface of each second arc-shaped water tank (36), and each joint of each second arc-shaped water tank (36) and each frame (1) is hollowed.