A high-rise building unmanned aerial vehicle fire extinguishing system

Abstract

The application discloses a high-rise building unmanned aerial vehicle fire extinguishing system, which comprises an unmanned aerial vehicle body, a fire truck body, a power supply unit, a window breaking unit and a fire extinguishing unit, wherein the unmanned aerial vehicle body is used for flying; the fire truck body is used for walking; the power supply unit comprises a cable and a power supply assembly, the cable is made of flexible material, one end of the cable is electrically connected with the unmanned aerial vehicle body, and the power supply assembly is arranged on the fire truck body. The application has the beneficial effects that: the ground water supply assembly can continuously supply water to the water spraying part, solves the problem of insufficient single carrying fire extinguishing agent of the unmanned aerial vehicle body and low operation efficiency, thereby improving the unmanned aerial vehicle fire extinguishing efficiency; the ground power supply assembly can continuously supply power to the unmanned aerial vehicle body, solves the problem of limited capacity of the airborne battery and difficulty in realizing long-time continuous operation, thereby ensuring that the unmanned aerial vehicle can continuously extinguish fire; and the window breaking unit can first perform window breaking operation, thereby improving the actual application effect of the unmanned aerial vehicle in a complex fire field environment.

Description

Technical Field

[0001] This invention relates to the field of fire-fighting equipment technology, and in particular to a high-rise building drone fire-fighting system. Background Technology

[0002] With the acceleration of urbanization, the number of high-rise and super high-rise buildings is increasing daily. Once a fire breaks out in such buildings, the challenge of high-altitude firefighting, which is often beyond the reach of traditional firefighting equipment, becomes apparent. Currently, the effective working height of conventional aerial ladder fire trucks is typically 30–50 meters, with some models reaching 60–70 meters. The world's tallest aerial ladder fire truck has a working height of approximately 101 meters, but it is expensive and difficult to maintain, and is only deployed in a few economically developed cities in my country. Meanwhile, high-rise building fires are characterized by rapid fire spread and high difficulty in firefighting. Coupled with the complex building structures and dense populations, effective control and evacuation are difficult after a fire breaks out, making it one of the major disasters threatening urban public safety and social development.

[0003] In recent years, drone technology has matured, and its advantages, such as maneuverability, rapid response, and lack of terrain limitations, have led to its initial application in high-rise building firefighting. One common approach in existing technologies is to use drones to carry fire extinguishing materials, fly to the target area, and drop them. However, due to the limited payload capacity of drones, the amount of fire extinguishing material carried per trip is insufficient, resulting in low operational efficiency. Another approach is to attach water cannons to drones for spraying fire extinguishing, but this is limited by the capacity of the onboard battery, making it difficult to achieve sustained operation for extended periods. Furthermore, existing drones lack effective window-breaking capabilities when facing fires with closed windows, making it impossible to clear obstacles before extinguishing the fire, thus limiting their practical application in complex fire environments. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a high-rise building drone fire-fighting system to solve the technical problems of low operating efficiency, difficulty in long-term continuous operation, and lack of effective window-breaking means when drones perform high-altitude fire-fighting tasks in the prior art.

[0005] To achieve the above-mentioned technical objectives, the present invention provides a high-rise building unmanned aerial vehicle (UAV) firefighting system, comprising: The drone itself, used for flight; The fire truck itself is used for movement; The power supply unit includes a cable and a power supply component. The cable is made of flexible material and one end is electrically connected to the UAV body. The power supply component is installed on the fire truck body and electrically connected to the other end of the cable for supplying power to the cable. A window-breaking unit, connected to the drone body, is used to fire projectiles at the glass to break it; and The fire extinguishing unit includes a water spray component, a pipeline, and a water supply assembly. The water spray component is mounted on the drone body and is used to spray water at the fire source. The pipeline is made of flexible material and one end is connected to the inlet end of the water spray component. The water supply assembly is mounted on the fire truck body and is connected to the other end of the pipeline for supplying water to the pipeline.

[0006] Furthermore, the UAV body is a multi-rotor structure, which includes a frame, multiple arms, and multiple rotor assemblies. Each arm is distributed in a ring array structure, and one end of each arm is fixedly connected to the frame. Each rotor assembly is connected to the other end of each arm in a corresponding manner, which is used to enable the frame to perform vertical, pitch, roll, or yaw movements in space.

[0007] Furthermore, the rotor assembly includes an upper rotor, a lower rotor, and a first rotation drive component. The upper rotor and the lower rotor are spaced apart vertically and coaxially arranged. The fixed end of the first rotation drive component is fixedly connected to the other end of the arm. The output end of the first rotation drive component is fixedly connected to the rotation shafts of both the upper rotor and the lower rotor, and is used to drive the upper rotor and the lower rotor to rotate in opposite directions.

[0008] Furthermore, the power supply unit also includes a first ball joint assembly, which is made of conductive material and has its two ends electrically connected to the UAV body and one end of the cable, respectively, so that one end of the cable forms a ball joint connection with the UAV body.

[0009] Furthermore, the first ball joint assembly includes a first ball seat and a first ball head. The first ball seat is electrically connected to the UAV body. The first ball seat has a first spherical groove with an enveloping angle greater than 180°. The first ball head is movably embedded in the first spherical groove and electrically connected to one end of the cable.

[0010] Furthermore, the window-breaking unit includes a hopper, a launching tube, a push shaft, and a drive assembly. The hopper is used to store projectiles, and the bottom of the hopper has a discharge port. One end of the launching tube has a feed port, which is connected to the discharge port. One end of the push shaft is sealed and slidably disposed inside the launching tube, and the other end of the push shaft extends sealed and slidably from one end of the launching tube to the outside of the launching tube. The drive assembly is connected to the other end of the push shaft and is used to drive the push shaft to reciprocate along the axial direction of the launching tube, so that the push shaft blocks the feed port or moves away from the feed port, and quickly ejects the projectiles that have entered the launching tube.

[0011] Furthermore, the window-breaking unit also includes a mounting base, which is fixedly connected to one end of both the UAV body and the launch tube. The drive assembly includes a moving rod, a connecting shaft, an elastic element, a drive wheel, and a second rotation drive component. The moving rod is slidably connected to the mounting base, and one end of the moving rod is fixedly connected to the other end of the push shaft. The connecting shaft is arranged radially along the launch tube and is fixedly connected to the other end of the moving rod. One end of the elastic element is connected to the connecting shaft, and the other end of the elastic element is connected to the mounting base to apply a force to the connecting shaft to move it toward the launch tube. The drive wheel is a half-wheel structure and is arranged between the launch tube and the connecting shaft, with the wheel surface of the drive wheel abutting against the connecting shaft. The fixed end of the second rotation drive component is fixedly connected to the mounting base, and the output end of the second rotation drive component is eccentrically fixedly connected to the drive wheel to drive the drive wheel to rotate, thereby causing the connecting shaft to move away from the launch tube.

[0012] Furthermore, the fire extinguishing unit also includes a second ball joint assembly, the two ends of which are respectively connected to the inlet end of the water spray element and one end of the pipeline, so that one end of the pipeline and the inlet end of the water spray element form a ball joint connection.

[0013] Furthermore, the second ball joint assembly includes a second spherical seat and a second ball head. The second spherical seat is electrically connected to the UAV body. The second spherical seat has a second spherical groove with an enveloping angle greater than 180°. The second spherical seat has a water outlet communicating with the second spherical groove and is connected to the inlet end of the water spray component via the water outlet. The second ball head is movably embedded in the second spherical groove. The second ball head has a hollow structure and has a water inlet and an outlet communicating with its internal cavity. The water inlet is located outside the second spherical groove and is connected to one end of the pipeline via the water inlet. The outlet is located inside the second spherical groove and is always connected to the water outlet.

[0014] Furthermore, the cable is wrapped around the outside of the conduit, the first spherical seat is wrapped around the outside of the second spherical seat, the first ball head is wrapped around the outside of the second ball head and is movably embedded in the second spherical groove, the periphery of the second spherical seat near the opening of the second spherical groove is made of conductive material, and the first ball head is electrically connected to the first spherical groove through the conductive part of the second spherical seat.

[0015] Compared with the prior art, the beneficial effects of the present invention include: when in use, the drone flies to the fire source of the high-rise building, first launches projectiles at the glass through the window-breaking unit to break the glass, and then supplies water to the pipeline through the water supply component. At the same time, water is sprayed at the fire source through the water spraying component until the fire is extinguished. This high-rise building drone fire extinguishing system can continuously supply water to the water spraying component through the ground water supply component, solving the problem of insufficient fire extinguishing dosage carried by the drone body at one time and low operating efficiency, thereby improving the fire extinguishing efficiency of the drone. The ground power supply group can continuously supply power to the drone body, solving the problem of limited onboard battery capacity and difficulty in achieving long-term continuous operation, thereby ensuring that the drone can continuously carry out fire extinguishing. The window-breaking unit can first carry out window breaking operations, thereby improving the actual application effect of the drone in complex fire scene environments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a high-rise building drone firefighting system provided by the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the window breaking unit provided by the present invention; Figure 3 This is a cross-sectional view of the window breaking unit provided by the present invention; Figure 4 This is a cross-sectional view of the second ball joint assembly provided by the present invention; In the diagram: 100 - UAV body, 110 - frame, 120 - arm, 130 - rotor assembly, 131 - upper rotor, 132 - lower rotor, 133 - first rotation drive component, 200 - window breaking unit, 210 - material box, 211 - discharge port, 220 - launch tube, 221 - feed port, 230 - push shaft, 240 - drive assembly, 241 - moving rod, 242 - connecting shaft, 243 - elastic element, 244 - drive wheel, 245 - second Rotary drive component, 250 - mounting base, 251 - mounting cavity, 252 - sliding groove, 253 - seat body, 254 - mounting shaft, 300 - fire extinguishing unit, 310 - water spray component, 320 - pipeline, 330 - second ball joint assembly, 331 - second ball seat, 3311 - second ball groove, 3312 - water outlet, 3313 - second hemisphere, 3314 - second limiting part, 332 - second ball head, 3321 - water inlet, 3322 - overflow port. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] This invention provides a high-rise building unmanned aerial vehicle (UAV) fire suppression system, the structure of which is as follows: Figure 1 - Figure 3 As shown, the system includes a drone body 100, a fire truck body, a power supply unit, a window-breaking unit 200, and a fire extinguishing unit 300. The drone body 100 is used for flight; the fire truck body is used for movement; the power supply unit includes a cable and a power supply component. The cable is made of flexible material, with one end electrically connected to the drone body 100. The power supply component is located on the fire truck body and is electrically connected to the other end of the cable to supply power to the cable; the window-breaking unit 200 is connected to the drone body 100 and is used to launch projectiles at the glass to break it; the fire extinguishing unit 300 includes a water spray component 310, a pipe 320, and a water supply component. The water spray component 310 is located on the drone body 100 and is used to spray water at the fire source. The pipe 320 is made of flexible material, with one end connected to the inlet end of the water spray component 310. The water supply component is located on the fire truck body and is connected to the other end of the pipe 320 to supply water to the pipe 320.

[0019] In use, the drone 100 flies to the fire source of the high-rise building, first firing projectiles at the glass through the window-breaking unit 200 to shatter the glass, and then supplying water to the pipe 320 through the water supply component. At the same time, water is sprayed at the fire source through the water spraying device 310 until the fire is extinguished. This high-rise building drone fire extinguishing system can continuously supply water to the water spraying device 310 through the ground water supply component, solving the problem of insufficient fire extinguishing dosage carried by the drone 100 at a time and low operating efficiency, thereby improving the fire extinguishing efficiency of the drone. The power supply group on the ground can continuously supply power to the drone 100, solving the problem of limited onboard battery capacity and difficulty in achieving long-term continuous operation, thereby ensuring that the drone can continuously carry out fire extinguishing. The window-breaking unit 200 can first carry out window-breaking operations, thereby improving the actual application effect of the drone in complex fire scene environments.

[0020] As a preferred embodiment, the fire truck body is a conventional fire truck, which is existing technology and will not be described in detail in this solution. The fire truck body is not shown in the figure.

[0021] As a preferred embodiment, please refer to Figure 1 The UAV body 100 is a multi-rotor structure, which includes a frame 110, multiple arms 120, and multiple rotor components 130. The arms 120 are distributed in a ring array structure, and one end of each arm 120 is fixedly connected to the frame 110. Each rotor component 130 is connected to the other end of each arm 120 in a corresponding manner, so as to enable the frame 110 to perform vertical movement, pitch movement, roll movement or yaw movement in space. By adjusting the speed difference of each rotor component 130, the orientation, speed and attitude of the frame 110 can be changed.

[0022] As a preferred embodiment, please refer to Figure 1 The rotor assembly 130 includes an upper rotor 131, a lower rotor 132, and a first rotation drive 133. The upper rotor 131 and the lower rotor 132 are spaced apart and coaxially arranged. The fixed end of the first rotation drive 133 is fixedly connected to the other end of the arm 120, and the output end of the first rotation drive 133 is fixedly connected to the rotation shafts of both the upper rotor 131 and the lower rotor 132, for driving the upper rotor 131 and the lower rotor 132 to rotate in opposite directions. The coaxial arrangement of the upper rotor 131 and the lower rotor 132 enhances the stability of the UAV. By precisely controlling the rotation speed and direction of rotation of the upper rotor 131 and the lower rotor 132, the UAV can achieve high-precision balance control, thereby maintaining stability under various flight conditions. Furthermore, the coaxial arrangement of the upper rotor 131 and the lower rotor 132 allows for a larger rotor area, resulting in higher flight efficiency and a larger payload.

[0023] As a preferred embodiment, please refer to Figure 1 The UAV body 100 has an eight-axis, sixteen-rotor structure, enabling it to carry heavy loads and maintain high stability.

[0024] In the first embodiment, the first rotation drive 133 includes a first dual-axis motor. The two output shafts of the first dual-axis motor are coaxially and fixedly connected to the rotation shafts of the upper rotor 131 and the lower rotor 132 in a one-to-one correspondence. By operating the first dual-axis motor, the output shafts of the first dual-axis motor rotate, which can drive the rotation shafts of the upper rotor 131 and the lower rotor 132 to rotate in opposite directions.

[0025] In the second embodiment, the first rotation drive 133 includes two first single-axis motors. The output shafts of the two first single-axis motors are coaxially and fixedly connected to the rotation shafts of the upper rotor 131 and the lower rotor 132 in a one-to-one correspondence. By operating the two first single-axis motors, the output shafts of the two first single-axis motors rotate, which can drive the rotation shafts of the upper rotor 131 and the lower rotor 132 to rotate in opposite directions.

[0026] In the third embodiment, the first rotation drive 133 includes two driven bevel gears, a driving bevel gear, and a second single-axis motor. The two driven bevel gears are coaxially and fixedly connected to the rotation shafts of the upper rotor 131 and the lower rotor 132, respectively. The driving bevel gear meshes with both driven bevel gears. The output shaft of the second single-axis motor is coaxially and fixedly connected to the driving bevel gear, and is used to drive the driving bevel gear to rotate. By operating the two second single-axis motors, the output shafts of the second single-axis motors rotate, which can drive the driving bevel gear to rotate, and then drive the two driven bevel gears to rotate in the opposite direction, thereby realizing the reverse rotation of the rotation shafts of the upper rotor 131 and the lower rotor 132.

[0027] In a preferred embodiment, the fire truck body carries a winch, and the cable and pipe 320 are wound on the winch. By operating the winch, the cable and pipe 320 can be wound up.

[0028] In a preferred embodiment, the power supply component is a power source, which can be a power source carried by the fire truck itself or a power source specifically designed for the UAV body 100. The power supply unit is not shown in the figure.

[0029] In a preferred embodiment, the power supply unit further includes a first ball joint assembly. The first ball joint assembly is made of conductive material, and its two ends are electrically connected to the UAV body 100 and one end of the cable, respectively, so that one end of the cable forms a ball joint connection with the UAV body 100, thereby allowing the cable to deflect relative to the UAV body 100 and preventing the cable from getting tangled when the UAV body 100 rotates and adjusts its attitude in the air.

[0030] In a preferred embodiment, the first ball joint assembly includes a first ball seat and a first ball head. The first ball seat is electrically connected to the UAV body 100. The first ball seat has a first spherical groove with an enclosing angle greater than 180°. The first ball head is movably embedded in the first spherical groove and electrically connected to one end of the cable. When the UAV adjusts its attitude, since the first ball head can move in the first spherical groove, the cable can be deflected relative to the UAV body 100, and the cable will not get tangled due to the UAV body 100 adjusting its attitude.

[0031] In a preferred embodiment, the cable is covered with an insulating material, the first spherical seat is covered with an insulating material, and the portion of the first ball head located outside the first spherical groove is covered with an insulating material to ensure power supply safety.

[0032] In a preferred embodiment, the first spherical seat includes a first hemisphere and two first limiting portions. The two first limiting portions are detachably covered on the first hemisphere to form a first spherical groove together with the first hemisphere, which facilitates the assembly and disassembly of the first ball head.

[0033] As a preferred embodiment, please refer to Figure 2 and Figure 3The window-breaking unit 200 includes a hopper 210, a launching tube 220, a push shaft 230, and a drive assembly 240. The hopper 210 stores projectiles and has a discharge port 211 at its bottom. One end of the launching tube 220 has an inlet 221, which communicates with the discharge port 211. One end of the push shaft 230 is slidably and sealed inside the launching tube 220, while the other end extends slidably and sealed outside the launching tube 220. The drive assembly 240 is connected to the other end of the push shaft 230 and drives the push shaft 230 to reciprocate along the axial direction of the launching tube 220, thereby making the push shaft 230 slidably and sealed outside the launching tube 220. By blocking or removing the feed inlet 221, the projectiles entering the launch tube 220 are quickly ejected. When a window-breaking operation is required, the drive assembly 240 is operated to drive the push shaft 230 to move outward along the axial direction of the launch tube 220. This allows the push shaft 230 to be removed from the feed inlet 221. The projectiles in the feed box 210 enter the launch tube 220 from the discharge port 211 and the feed inlet 221. Then, the drive assembly 240 drives the push shaft 230 to move inward along the axial direction of the launch tube 220, which can quickly eject the projectiles entering the launch tube 220. The projectiles hit the glass at a high speed and break the glass, thus achieving the window-breaking operation.

[0034] In a preferred embodiment, when the UAV body 100 is in a horizontal position, the launch tube 220 is tilted, with an angle between it and the horizontal plane of 5° to 8°, to prevent the projectile from falling out of the launch tube 220 before it is launched.

[0035] As a preferred embodiment, please refer to Figure 2 and Figure 3The window-breaking unit 200 also includes a mounting base 250, which is fixedly connected to one end of the UAV body 100 and the launch tube 220. The drive assembly 240 includes a moving rod 241, a connecting shaft 242, an elastic element 243, a drive wheel 244, and a second rotation drive element 245. The moving rod 241 is slidably connected to the mounting base 250, and one end of the moving rod 241 is fixedly connected to the other end of the push shaft 230. The connecting shaft 242 is arranged radially along the launch tube 220 and is fixedly connected to the other end of the moving rod 241. One end of the elastic element 243 is connected to the connecting shaft 242. The other end of the elastic element 243 is connected to the mounting base 250 to apply a force to the connecting shaft 242, causing it to move toward the launching tube 220. The drive wheel 244 is a half-wheel structure and is arranged between the launching tube 220 and the connecting shaft 242, with the wheel surface of the drive wheel 244 abutting against the connecting shaft 242. The fixed end of the second rotation drive element 245 is fixedly connected to the mounting base 250, and the output end of the second rotation drive element 245 is eccentrically fixedly connected to the drive wheel 244 to drive the drive wheel 244 to rotate, so that the connecting shaft 242 moves away from the launching tube 220. The mounting base 250 can... To provide support and guidance, when window-breaking operations are required, the second rotation drive 245 is operated, which drives the drive wheel 244 to rotate. This causes the connecting shaft 242 to move away from the launching tube 220, which in turn causes the moving rod 241 to move away from the launching tube 220. Consequently, the push shaft 230 moves outward along the axial direction of the launching tube 220, allowing it to move away from the feed inlet 221. The projectiles in the feed box 210 then enter the launching tube 220 from the discharge port 211 and the feed inlet 221. During this process, the elastic element 243 accumulates projectiles. When the drive wheel 244 reaches its furthest point and comes into contact with the connecting shaft 242, the connecting shaft 242 reaches its furthest point. Then, the drive wheel 244 quickly switches from its furthest point to its closest point and comes into contact with the connecting shaft 242. The elastic element 243 quickly releases its elastic potential energy, pushing the connecting shaft 242 toward the launching tube 220, which in turn pushes the moving rod 241 toward the launching tube 220. This, in turn, pushes the driving shaft 230 to move inward along the axial direction of the launching tube 220, which can quickly push out the projectile that has entered the launching tube 220. The projectile hits the glass at a high speed and breaks the glass, thus achieving the window breaking operation.

[0036] As a preferred embodiment, please refer to Figure 1 and Figure 2 The mounting base 250 is fixedly connected to the frame 110, thereby achieving a fixed connection with the UAV body 100.

[0037] As a preferred embodiment, please refer to Figure 2 and Figure 3The mounting base 250 has a mounting cavity 251 that extends axially along the launch tube 220. The mounting base 250 has a groove 252 that communicates with the mounting cavity 251. The groove 252 extends axially along the launch tube 220. The other end of the push shaft 230 is located inside the mounting cavity 251. The moving rod 241 is slidably disposed inside the mounting cavity 251. The connecting shaft 242 is slidably connected to the groove 252 and extends out of the mounting cavity 251. The elastic element 243 and the drive wheel 244 are both disposed outside the mounting cavity 251. The mounting cavity 251 can guide and limit the moving rod 241. The groove 252 can guide and limit the movement of the connecting shaft 242 and allow the connecting shaft 242 to extend out of the mounting cavity 251, which facilitates the arrangement of the elastic element 243 and the drive wheel 244 outside the mounting cavity 251.

[0038] As a preferred embodiment, please refer to Figure 2 and Figure 3 The mounting base 250 includes a base body 253 and a mounting shaft 254. The base body 253 is fixedly connected to one end of the UAV body 100 and the launch tube 220. The base body 253 has a mounting cavity 251 and a sliding groove 252. The mounting shaft 254 is arranged radially along the launch tube 220 and is located between the launch tube 220 and the connecting shaft 242. The mounting shaft 254 is fixedly connected to the base body 253. The other end of the elastic member 243 is connected to the mounting shaft 254. The mounting shaft 254 is provided to facilitate the installation of the other end of the elastic member 243.

[0039] As a preferred embodiment, please refer to Figure 2 and Figure 3 The elastic element 243 includes two elastic elements 243, which are arranged opposite to each other. One end of the two elastic elements 243 is connected to both ends of the connecting shaft 242, and the other end of the two elastic elements 243 is connected to both ends of the mounting shaft 254, which can ensure the pushing force and guarantee the window breaking effect.

[0040] As a preferred embodiment, please refer to Figure 2 and Figure 3 The drive wheel 244 includes two wheels, and the wheel surfaces of the two drive wheels 244 abut against the two ends of the connecting shaft 242 one by one, which can ensure the driving force and guarantee the window breaking effect.

[0041] In another embodiment, the drive wheel 244 may also be a drive rod, and the elastic element 243 can accumulate and release elastic potential energy by the abutment or separation of the drive rod and the connecting shaft 242.

[0042] In a preferred embodiment, the water spray component 310 is a high-pressure spray gun.

[0043] In a preferred embodiment, the water supply assembly includes a water tank and a drive pump. The water tank has a water supply port and a water replenishment port. The water replenishment port is used to connect to a water source. The inlet end of the drive pump is connected to the water supply port, and the outlet end of the drive pump is connected to the other end of the pipeline 320. The drive pump is used to pump water from the water tank into the pipeline 320. When the drive pump is started, it can pump water from the water tank into the pipeline 320, and then transport the water to the water spray unit 310 through the pipeline 320 for high-pressure water spraying for fire extinguishing. The water supply assembly is not shown in the figure.

[0044] In a preferred embodiment, the driving pump is a high-pressure pump to ensure the water delivery height.

[0045] As a preferred embodiment, please refer to Figure 1 and Figure 4 The fire extinguishing unit 300 also includes a second ball joint assembly 330. The two ends of the second ball joint assembly 330 are respectively connected to the inlet end of the water spray component 310 and one end of the pipe 320, so that one end of the pipe 320 and the inlet end of the water spray component 310 form a ball joint connection, thereby allowing the pipe 320 to tilt relative to the UAV body 100, preventing the pipe 320 from getting tangled when the UAV body 100 rotates and adjusts its attitude in the air.

[0046] As a preferred embodiment, please refer to Figure 4 The second ball joint assembly 330 includes a second ball seat 331 and a second ball head 332. The second ball seat 331 is electrically connected to the UAV body 100. The second ball seat 331 has a second spherical groove 3311 with an enclosure angle greater than 180°. The second ball seat 331 has a water outlet 3312 communicating with the second spherical groove 3311 and communicating with the inlet end of the water spray component 310 through the water outlet 3312. The second ball head 332 is movably embedded in the second spherical groove 3311 and has a hollow structure. 2. An inlet 3321 and an outlet 3322 are provided and communicate with the internal cavity of the device. The inlet 3321 is located outside the second spherical groove 3311 and is connected to one end of the pipe 320 through the inlet 3321. The outlet 3322 is located inside the second spherical groove 3311 and is always connected to the outlet 3312. When the UAV adjusts its attitude, since the first ball head can move in the first spherical groove, the pipe 320 can be tilted relative to the UAV body 100, and the pipe 320 will not be tangled due to the UAV body 100 adjusting its attitude.

[0047] As a preferred embodiment, please refer to Figure 4The second spherical seat 331 includes a second hemisphere 3313 and two second limiting portions 3314. The second hemisphere 3313 has an outlet 3312. The two second limiting portions 3314 are detachably covered on the second hemisphere 3313 to form the second spherical groove 3311 together with the second hemisphere 3313, which facilitates the disassembly and assembly of the second ball head 332.

[0048] As a preferred embodiment, please refer to Figure 4 The cable is wrapped around the outside of the conduit 320, the first spherical seat is wrapped around the outside of the second spherical seat 331, the first ball head is wrapped around the outside of the second ball head 332, and is movably embedded in the second spherical groove 3311. The circumference of the second spherical seat 331 near the opening of the second spherical groove 3311 is made of conductive material. The first ball head is electrically connected to the first spherical groove through the conductive part of the second spherical seat 331. The cable and the conduit 320 are combined into one, and the power transmission and liquid transmission functions are combined into the same carrier, reducing the drag intensity on the UAV body 100.

[0049] In a preferred embodiment, the high-rise building drone firefighting system further includes a monitoring unit. The monitoring unit comprises a three-dimensional ultrasonic anemometer, a lidar, an infrared camera, and a controller. The three-dimensional ultrasonic anemometer, lidar, and infrared camera are all mounted on the drone body 100. The three-dimensional ultrasonic anemometer is used to collect wind speed, wind direction, and turbulence data; the lidar is used to collect data on the building's digital model; and the infrared camera is used to penetrate smoke to identify the center of the fire source. The controller is mounted on the fire truck body, and its input terminals are electrically connected to the three-dimensional ultrasonic anemometer, lidar, and infrared camera. To acquire data from a 3D ultrasonic anemometer, lidar, and infrared camera to construct a local wind field disturbance model, the controller is also electrically connected to the UAV body 100, power supply unit, window breaking unit 200, and fire extinguishing unit 300. It is used to adjust the attitude of the UAV body 100 and control the start and stop of the power supply unit, window breaking unit 200, and fire extinguishing unit 300. Before launching projectiles and spraying water, the controller dynamically corrects the launch angle according to the wind field disturbance model to compensate for the trajectory deviation caused by wind speed, resulting in high accuracy. Then, it controls the window breaking unit 200 and fire extinguishing unit 300 to start, thus realizing the window breaking and fire extinguishing tasks.

[0050] In a preferred embodiment, the controller is electrically connected to each of the first rotating drive components 133 to adjust the output power of each of the first rotating drive components 133. By adjusting the output power of each of the first rotating drive components 133, the speed difference between each upper rotor 131 and each lower rotor 132 can be adjusted. The controller is electrically connected to the circuit breaker of the power supply component. By controlling the closing or opening of the circuit breaker, the conduction of the line can be controlled. The controller is electrically connected to the drive pump. By controlling the start and stop of the drive pump, the flow of water can be controlled. The controller is electrically connected to the second rotating drive component 245. By controlling the start and stop of the second rotating drive component 245, the projectile can be thrown.

[0051] To better understand this invention, the following is combined with... Figure 1 - Figure 4 The working principle of the technical solution of the present invention will be described in detail below: In use, the drone body 100 flies to the fire source of a high-rise building and first performs window breaking operations. By controlling the second rotation drive component 245, the second rotation drive component 245 drives the drive wheel 244 to rotate, which can move the connecting shaft 242 away from the launch tube 220. That is, it can also move the moving rod 241 away from the launch tube 220, which in turn can move the push shaft 230 outward along the axis of the launch tube 220. This can move the push shaft 230 away from the feed port 221, and the spring in the material box 210... The pellets enter the launching tube 220 through the discharge port 211 and the inlet 221. During this process, the elastic element 243 accumulates elastic potential energy. When the farthest position of the drive wheel 244 abuts against the connecting shaft 242, the connecting shaft 242 reaches its farthest point. Then, the drive wheel 244 quickly switches from its farthest position to its closest position and abuts against the connecting shaft 242. The elastic element 243 quickly releases its elastic potential energy, pushing the connecting shaft 242 towards the launching tube 220, which in turn pushes the moving rod 241 towards the launching tube 220. The push shaft 230 is moved inward along the axial direction of the launch tube 220, which can quickly eject the projectile that has entered the launch tube 220. The projectile hits the glass at a high speed and breaks the glass, thus achieving the window breaking operation. Then, the drive pump is started, which can pump water in the water tank into the pipeline 320, and then transport the water to the water spray unit 310 through the pipeline 320. The water spray unit 310 sprays high-pressure water to extinguish the fire until the fire source is extinguished. This high-rise building UAV fire extinguishing system can continuously supply water to the water spray unit 310 through the ground water supply component, which solves the problem of insufficient fire extinguishing dosage carried by the UAV body 100 and low operating efficiency, thereby improving the fire extinguishing efficiency of the UAV. The power supply group on the ground can continuously supply power to the UAV body 100, which solves the problem of limited onboard battery capacity and difficulty in achieving long-term continuous operation, thus ensuring that the UAV can continuously carry out fire extinguishing. The window breaking unit 200 can first carry out window breaking operation, thereby improving the actual application effect of the UAV in complex fire scene environments.

[0052] The high-rise building drone firefighting system provided by this invention has the following beneficial effects: (1) The cable and pipe 320 are all ball-jointed to the UAV body 100, which can be tilted relative to the UAV body 100 to prevent the cable and pipe 320 from getting tangled when the UAV body 100 rotates and adjusts its attitude in the air. (2) The cable and pipeline 320 are combined into one, and the power transmission and liquid transmission functions are combined into the same carrier, reducing the drag intensity on the UAV body 100; (3) This high-rise building UAV fire extinguishing system can continuously supply water to the water spray unit 310 through the ground water supply component, which solves the problem that the UAV body 100 carries insufficient fire extinguishing dosage and has low operating efficiency, thereby improving the fire extinguishing efficiency of the UAV. The power supply group on the ground can continuously supply power to the UAV body 100, which solves the problem that the onboard battery capacity is limited and it is difficult to achieve long-term continuous operation, thereby ensuring that the UAV can continuously carry out fire extinguishing. The window breaking unit 200 can first carry out window breaking operation, thereby improving the actual application effect of the UAV in complex fire scene environment.

[0053] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A high-rise building unmanned aerial vehicle (UAV) firefighting system, characterized in that, include: The drone itself, used for flight; The fire truck itself is used for movement; The power supply unit includes a cable and a power supply component. The cable is made of flexible material and one end is electrically connected to the UAV body. The power supply component is installed on the fire truck body and electrically connected to the other end of the cable for supplying power to the cable. The window-breaking unit, connected to the drone body, is used to fire projectiles at the glass to break it. and The fire extinguishing unit includes a water spray component, a pipeline, and a water supply assembly. The water spray component is mounted on the drone body and is used to spray water at the fire source. The pipeline is made of flexible material and one end is connected to the inlet end of the water spray component. The water supply assembly is mounted on the fire truck body and is connected to the other end of the pipeline for supplying water to the pipeline.

2. The high-rise building unmanned aerial vehicle (UAV) firefighting system according to claim 1, characterized in that, The UAV body is a multi-rotor structure, which includes a frame, multiple arms, and multiple rotor assemblies. The arms are arranged in a ring array, and one end of each arm is fixedly connected to the frame. Each rotor assembly is connected to the other end of each arm, enabling the frame to move vertically, pitch, roll, or yaw in space.

3. The high-rise building unmanned aerial vehicle (UAV) firefighting system according to claim 2, characterized in that, The rotor assembly includes an upper rotor, a lower rotor, and a first rotation drive. The upper rotor and the lower rotor are spaced apart and coaxially arranged. The fixed end of the first rotation drive is fixedly connected to the other end of the arm. The output end of the first rotation drive is fixedly connected to the rotation shafts of both the upper rotor and the lower rotor, and is used to drive the upper rotor and the lower rotor to rotate in opposite directions.

4. The high-rise building unmanned aerial vehicle (UAV) firefighting system according to claim 1, characterized in that, The power supply unit also includes a first ball joint assembly, which is made of conductive material and has its two ends electrically connected to the UAV body and one end of the cable, respectively, so that one end of the cable forms a ball joint connection with the UAV body.

5. The high-rise building unmanned aerial vehicle (UAV) fire suppression system according to claim 4, characterized in that, The first ball joint assembly includes a first ball seat and a first ball head. The first ball seat is electrically connected to the UAV body. The first ball seat has a first spherical groove with an enveloping angle greater than 180°. The first ball head is movably embedded in the first spherical groove and electrically connected to one end of the cable.

6. The high-rise building unmanned aerial vehicle (UAV) firefighting system according to claim 1, characterized in that, The window-breaking unit includes a hopper, a launching tube, a push shaft, and a drive assembly. The hopper is used to store projectiles and has a discharge port at its bottom. One end of the launching tube has a feed port, which is connected to the discharge port. One end of the push shaft is slidably and sealed inside the launching tube, and the other end of the push shaft extends slidably and sealed outside the launching tube. The drive assembly is connected to the other end of the push shaft and is used to drive the push shaft to reciprocate along the axial direction of the launching tube, so that the push shaft blocks the feed port or moves away from the feed port and quickly ejects the projectiles that have entered the launching tube.

7. The high-rise building unmanned aerial vehicle (UAV) fire suppression system according to claim 6, characterized in that, The window-breaking unit also includes a mounting base, which is fixedly connected to one end of the UAV body and the launch tube. The drive assembly includes a moving rod, a connecting shaft, an elastic element, a drive wheel, and a second rotation drive component. The moving rod is slidably connected to the mounting base, and one end of the moving rod is fixedly connected to the other end of the push shaft. The connecting shaft is arranged radially along the launch tube and is fixedly connected to the other end of the moving rod. One end of the elastic element is connected to the connecting shaft, and the other end of the elastic element is connected to the mounting base to apply a force to the connecting shaft to move it toward the launch tube. The drive wheel is a half-wheel structure and is arranged between the launch tube and the connecting shaft, with the wheel surface of the drive wheel abutting against the connecting shaft. The fixed end of the second rotation drive component is fixedly connected to the mounting base, and the output end of the second rotation drive component is eccentrically fixedly connected to the drive wheel to drive the drive wheel to rotate, so that the connecting shaft moves away from the launch tube.

8. The high-rise building unmanned aerial vehicle (UAV) fire suppression system according to claim 5, characterized in that, The fire extinguishing unit further includes a second ball joint assembly, the two ends of which are respectively connected to the inlet end of the water spray component and one end of the pipeline, so that one end of the pipeline and the inlet end of the water spray component form a ball joint connection.

9. The high-rise building unmanned aerial vehicle (UAV) fire suppression system according to claim 8, characterized in that, The second ball joint assembly includes a second spherical seat and a second ball head. The second spherical seat is electrically connected to the UAV body. The second spherical seat has a second spherical groove with an enveloping angle greater than 180°. The second spherical seat has a water outlet communicating with the second spherical groove and is connected to the inlet end of the water spray component via the water outlet. The second ball head is movably embedded in the second spherical groove. The second ball head has a hollow structure and has a water inlet and an outlet communicating with its internal cavity. The water inlet is located outside the second spherical groove and is connected to one end of the pipeline via the water inlet. The outlet is located inside the second spherical groove and is always connected to the water outlet.

10. The high-rise building unmanned aerial vehicle (UAV) fire suppression system according to claim 9, characterized in that, The cable is wrapped around the outside of the conduit, the first spherical seat is wrapped around the outside of the second spherical seat, the first ball head is wrapped around the outside of the second ball head and is movably embedded in the second spherical groove, the second spherical seat is made of conductive material around the opening of the second spherical groove, and the first ball head is electrically connected to the first spherical groove through the conductive part of the second spherical seat.

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