Water pipe winding and unwinding device and unmanned aerial vehicle

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a water pipe winding and unwinding device and an unmanned aerial vehicle. The water pipe winding and unwinding device is used for carrying the unmanned aerial vehicle, the winding driving device drives the winding shaft to rotate forwards and backwards, the water inlet pipe is wound or unwound, and the water inlet pipe can be wound or unwound after being connected with a fire hose on the ground through the water inlet connector. The water pipe collecting and releasing device is carried to the high altitude in cooperation with an unmanned aerial vehicle, water is sprayed through a water outlet nozzle, high-altitude fire extinguishing operation can be achieved, physical height constraint of a traditional scaling ladder is well eliminated, the high-rise building fire scene can be rapidly reached, and the problem that existing fire fighting equipment cannot cover high-altitude fire extinguishing is solved; the unmanned aerial vehicle can be remotely controlled, risks such as fire spreading and smoke poisoning are reduced, and the use reliability is good.

Description

Technical Field

[0001] This utility model belongs to the field of unmanned aerial vehicle (UAV) technology, specifically relating to a water pipe retraction and deployment device and an UAV. Background Technology

[0002] Currently, firefighting in high-rise buildings in cities mainly relies on fire ladder trucks, but traditional ladders have significant limitations: on the one hand, the ladder's reach is limited, making it difficult to cover super high-rise buildings; on the other hand, firefighters need to work at heights, facing high risks such as fire spread, smoke poisoning, and falls. In addition, ladder deployment is limited by space constraints, making it difficult to deploy quickly in narrow streets or complex environments, delaying firefighting opportunities.

[0003] In recent years, drone technology has been attempted to be applied to the field of firefighting. However, existing firefighting drones have limited functions, only capable of performing reconnaissance or small-scale firefighting missions by carrying fire extinguishing bombs or cameras. They cannot meet the needs of continuous, high-volume, high-altitude firefighting. The key problem is that drones lack hose retraction devices, making it difficult to coordinate with ground fire hoses, resulting in insufficient water delivery capacity and low firefighting efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the problem that existing fire-fighting drones lack a hose retraction device and are difficult to coordinate with ground fire hoses for fire-fighting operations, and to provide a hose retraction device and drone that can work in coordination with ground fire hoses.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A water pipe winding and unwinding device includes a winding frame, an inlet pipe, and an outlet pipe. The winding frame has an inner winding shaft and a winding drive device for driving the winding shaft. The inner side of the winding shaft has a clearance cavity with one end open along its length, and the outer side of the winding shaft has a water passage hole communicating with the clearance cavity. The inlet pipe is wound around the outer circumference of the winding shaft, with one end connected to the water passage hole and the other end having an inlet connector. One end of the outlet pipe is inserted into the clearance cavity and communicates with the inlet pipe through the water passage hole. The other end of the outlet pipe has a water outlet nozzle, which is mounted on the winding frame and arranged opposite to the water inlet connector. The winding drive device drives the winding shaft to rotate in both directions to wind or unwind the inlet pipe.

[0007] Compared with existing technologies, the water pipe deployment and retraction device of this utility model is used to carry drones. The winding drive device drives the winding shaft to rotate in both directions to wind up or release the water inlet pipe. After the water inlet pipe can be connected to the fire hose on the ground through the water inlet connector, the drone can carry the water pipe deployment and retraction device to a high altitude and spray water through the water outlet, thus realizing high-altitude fire fighting operations. It can get rid of the physical height constraints of traditional ladders, and can quickly reach the fire scene of high-rise buildings. It solves the problem that existing fire fighting equipment cannot cover high-altitude fire fighting. Firefighters do not need to work at high altitudes at risk. The drone can be remotely controlled, reducing the risks of fire spread and smoke poisoning. It has good reliability.

[0008] Furthermore, the water nozzle is mounted on the take-up frame via a telescopic mechanism. The telescopic mechanism includes a first push rod, a guide mechanism, and a movable frame. The water nozzle is mounted on the movable frame, which is guided and movably mounted on the take-up frame via the guide mechanism. The first push rod is mounted on the take-up frame, and its movable rod is connected to the movable frame via a transmission connection. With this configuration, the water nozzle can be flexibly extended and retracted by the telescopic mechanism, allowing the drone to dynamically adjust the spray distance and accurately target the fire source during firefighting. This significantly improves the mobility and spray efficiency of high-altitude firefighting, while preventing the drone from coming into close contact with the fire source and causing damage.

[0009] Furthermore, the guiding mechanism is provided in two sets, located on both sides of the first push rod. The guiding mechanism includes a first guide sleeve on the winding frame and a first guide rod on the movable frame. The first guide rod is movably sleeved in the first guide sleeve. With this arrangement, the two sets of symmetrically arranged guiding mechanisms ensure stable guidance of the water nozzle during extension and retraction, effectively preventing the movable frame from shifting or jamming, thereby improving the water spray positioning accuracy and device reliability, and adapting to the complex working conditions required for high-altitude fire extinguishing.

[0010] Furthermore, the winding frame includes two oppositely arranged side guards and a winding shaft disposed between the two side guards. The two side guards are connected to each other on both sides of the winding shaft by connecting rods. A socket is provided on the inner side of the side guard, and both ends of the winding shaft are provided with socket parts that can be rotatably fitted with the sockets. The socket parts fit into the corresponding sockets. With this arrangement, the combination design of the side guards, connecting rods and sockets enables the winding shaft to achieve stable support and smooth rotation, ensuring the reliability of the water inlet pipe winding and unwinding, facilitating disassembly and maintenance, and resulting in a compact and high-strength overall structure that meets the lightweight and shock-resistant requirements of UAVs.

[0011] Furthermore, the water inlet connector and the water outlet are respectively located on opposite sides of the winding frame; the water passage hole is located on one or the other side of the winding shaft, and the water inlet connector is located at the end near the other side of the winding shaft; it also includes a winding guide device, which is used to wind the water inlet pipe spirally onto the winding shaft when the winding shaft winds the water inlet pipe; the winding guide device includes a guide mechanism, a winding guide seat, and a transverse drive mechanism located on the winding frame, the winding guide seat being slidably connected to the guide mechanism, and the winding guide seat being provided with winding guide... The water inlet pipe is positioned within the winding guide hole on the side closest to the water inlet connector. The lateral drive mechanism drives the winding guide seat to slide along the guide mechanism, so that the water inlet pipe is wound into the winding shaft in a spiral manner when the winding shaft winds the water inlet pipe. With this configuration, by optimizing the symmetrical layout of the water inlet connector and the water outlet, the offset design of the water passage hole of the winding shaft, and the spiral pipe arrangement control of the winding guide device, neat winding of the water pipe is achieved during the winding and unwinding process, effectively preventing pipe twisting and knotting, and significantly improving the water supply stability and equipment reliability of high-altitude fire extinguishing operations.

[0012] Furthermore, the guiding mechanism is provided with at least two sets, each including a connecting rod disposed on the winding frame, and the winding guide seat is slidably connected to the connecting rod. By setting up at least two sets of guiding mechanisms, the winding guide seat slides smoothly on the connecting rod, ensuring that the water inlet pipe is subjected to uniform force and arranged neatly during the winding process, effectively avoiding water pipe tangling or deviation, and improving winding and unwinding efficiency and system stability.

[0013] Furthermore, the lateral drive mechanism includes a transmission screw and a screw driver mounted on the winding frame. The transmission screw is arranged parallel to the connecting rod, and the winding guide seat is provided with a threaded transmission hole that engages with the transmission screw. The screw driver drives the transmission screw to achieve relative movement of the winding guide seat along the connecting rod. With this configuration, the lateral displacement of the winding guide seat is precisely controlled by the screw drive mechanism, achieving a uniform spiral arrangement of the water inlet pipe on the winding shaft. This effectively prevents water pipe stacking or misalignment, ensuring a smooth and reliable winding and unwinding process, while also improving automation and firefighting efficiency.

[0014] Furthermore, the water outlet pipe includes a water inlet pipe, an external pipe, and a water outlet hose connected in sequence. The water inlet pipe is placed inside the clearance cavity, and one end of it is connected to the water inlet pipe through a water passage hole. The external pipe is located outside the winding frame and is connected to the other end of the water inlet pipe through a socket joint structure to form a sealed rotatable connection. The other end of the external pipe is placed inside the winding frame and connected to one end of the water outlet hose. The water outlet nozzle is located at the other end of the water outlet hose. The external pipe is equipped with a booster pump and a drain solenoid valve for draining the liquid inside. With this configuration, by setting the water outlet pipe as a water inlet pipe, an external pipe, and a water outlet hose, combined with the socket joint structure, a sealed connection is achieved as the water outlet pipe rotates with the winding shaft. At the same time, the drain solenoid valve can quickly drain the residual liquid, which facilitates the winding shaft to quickly complete the winding of the water outlet pipe.

[0015] Furthermore, the socket-joint structure includes a rotating seat located on the outer periphery of the other end of the water inlet pipe and a connecting seat located on the outer periphery of one end of the external pipe. The rotating seat has an insertion groove with an outer opening. The fixed seat is axially movable within the insertion groove. The bottom wall of the insertion groove has a sealing groove located on the outer periphery of the opening at the other end of the water inlet pipe. A sealing ring is provided in the sealing groove. The structure also includes an axial actuator for driving the fixed seat to move axially along the insertion groove. The axial actuator is used to drive the fixed seat and the rotating seat to engage relative to each other to form a sealing fit or to drive the fixed seat to engage. The fixed seat and the rotating seat are relatively separated. This arrangement ensures that when the winding drive device drives the winding shaft to wind or release the water inlet pipe, the fixed seat and the rotating seat are relatively separated by the axial driver. This controls the separation between the water inlet pipe and the external pipe, ensuring that the winding shaft can normally wind or release the water inlet pipe. After the winding drive device completes the release of the water inlet pipe, the fixed seat and the rotating seat are joined together by the axial driver to form a sealed fit. This controls the connection between the water inlet pipe and the external pipe, ensuring that the water flows from the water inlet pipe to the external pipe.

[0016] The drone includes a flight body and a water hose retraction / deployment device mounted on the flight body. With this configuration, the drone's retraction drive mechanism drives the retraction shaft to rotate in both directions, retracting or releasing the water inlet pipe. This allows the water inlet pipe to be connected to a fire hose on the ground via an inlet connector. The drone then carries the water hose retraction / deployment device to a high altitude, spraying water through nozzles, enabling high-altitude firefighting operations. This effectively overcomes the physical height constraints of traditional ladder trucks, allowing for rapid access to high-rise building fires. It solves the problem of existing firefighting equipment being unable to cover high-altitude firefighting, eliminating the need for firefighters to risk high-altitude operations. The drone can be remotely controlled, reducing the risks of fire spread and smoke inhalation, and offers high reliability.

[0017] Furthermore, the water pipe retraction device is located inside the aircraft body. The aircraft body has an inlet clearance port corresponding to the water inlet connector and an outlet clearance port corresponding to the water outlet nozzle. The aircraft body is equipped with a level and several telescopic support rods configured on the lower side. The telescopic support rods contact the ground when extended, thus supporting the aircraft body on the ground. This configuration allows the aircraft body to control the different extension strokes of each telescopic support rod according to flat ground, hillsides, or different undulating terrain, so that the aircraft body is stably supported on the slope. This enables coordinated operation with ground fire hoses to extinguish wildfires or fires at a greater distance, without requiring firefighters to conduct firefighting operations at close range. Attached Figure Description

[0018] Figure 1 This is a schematic diagram showing the water outlet pipe of the water pipe retraction device in its retracted state.

[0019] Figure 2 A diagram showing the water pipe of the water pipe retraction device in the extended state. Figure 1 .

[0020] Figure 3 This is a schematic diagram of the winding guide seat.

[0021] Figure 4 A diagram showing the water pipe of the water pipe retraction device in the extended state. Figure 2 .

[0022] Figure 5 This is an exploded view of a water pipe retraction device.

[0023] Figure 6 This is a schematic diagram showing the connection state of the inlet connector and the outlet nozzle.

[0024] Figure 7 This is a schematic diagram of the water outlet.

[0025] Figure 8 This is a schematic diagram of the water inlet connector.

[0026] Figure 9 This is a schematic diagram showing the fixed seat and rotating seat separated in a water pipe retraction device.

[0027] Figure 10 This is a schematic diagram showing the assembled state of the fixed seat and the rotating seat in a water pipe retraction device.

[0028] Figure 11 This is a schematic diagram of a drone with its water inlet pipe extended.

[0029] Figure 12 This diagram illustrates how multiple drones connect to water lines in the air and then to the water supply of fire trucks to fight high-altitude fires.

[0030] Figure 13This diagram illustrates how multiple drones connect waterways on a slope and are then connected to the water supply of a fire truck to fight a high-altitude fire.

[0031] Labeling Explanation: 1. Water pipe winding device; 11. Winding frame; 12. Inlet pipe; 13. Outlet pipe; 14. Winding shaft; 15. Winding drive device; 141. Clearance cavity; 112. Water passage hole; 121. Inlet connector; 131. Outlet nozzle; 16. Telescopic mechanism; 161. First push rod; 162. Guide mechanism; 163. Movable frame; 164. First guide sleeve; 165. First guide rod; 111. Side baffle; 112. Connecting rod; 113. Socket seat; 142. Socket part; 17. Winding guide device; 171. Winding guide seat; 172. Winding guide hole; 173. Transmission screw; 174. Screw driver; 175. Threaded transmission hole; 132. Water inlet pipe; 133. External pipe; 134. Outlet hose; 136. Booster pump; 137. Drainage pipe; 18. Water solenoid valve 137, first connecting seat 18, second connecting seat 19, rotary driver 191, first locking block 182, first locking seat 183, first locking groove 184, second locking block 192, second locking seat 193, second locking groove 194, transmission rack 195, transmission gear 196, locking push rod 197, lock hole 198, locking component 199, positioning lock groove 190, hooking push rod 185, hooking hole 186, docking positioning device 21, marking positioning component 22, UAV 3, flight body 31, water inlet avoidance port 32, water outlet avoidance port 33, telescopic support rod 34, docking hole 120, socket joint structure 4, rotating seat 41, fixed seat 42, plug groove 43, sealing groove 44. Detailed Implementation

[0032] The specific embodiments of this utility model are described below with reference to the accompanying drawings. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Example 1:

[0034] See Figures 1 to 13The present invention relates to a water pipe winding and unwinding device 1, comprising a winding frame 11, an inlet pipe 12, and an outlet pipe 13; the winding frame 11 is provided with an inner winding shaft 14 and a winding drive device 15 for driving the winding shaft 14, the winding drive device 15 being, for example, a motor mounted on the winding frame 11 and connected to the winding shaft 14 for transmission; the inner side of the winding shaft 14 is provided with a clearance cavity 141 with one end open along the length direction, and the outer side of the winding shaft 14 is provided with a water passage hole 112 communicating with the clearance cavity 141; the inlet pipe 12... The water inlet pipe 12 is wound around the outer circumference of the take-up shaft 14, with one end connected to the water passage hole 112 and the other end provided with a water inlet connector 121; one end of the water outlet pipe 13 is inserted into the relief cavity 141 and communicates with the water inlet pipe 12 through the water passage hole 112, and the other end of the water outlet pipe 13 is provided with a water outlet nozzle 131, which is set on the take-up frame 11, and the water outlet nozzle 131 is arranged opposite to the water inlet connector 121; the take-up drive device 15 drives the take-up shaft 14 to rotate in both directions to realize the take-up or release of the water inlet pipe 12.

[0035] Compared with the prior art, the water pipe retraction device 1 of this utility model is used to carry the drone 3. The retraction drive device 15 drives the retraction shaft 14 to rotate in both directions to retract or release the water inlet pipe 12. After the water inlet pipe 12 is connected to the fire hose on the ground through the water inlet connector 121, the drone 3 carries the water pipe retraction device 1 to a high altitude and sprays water through the water outlet 131, which can realize high-altitude fire fighting operations. It can get rid of the physical height constraints of traditional ladders, and can quickly reach the fire scene of high-rise buildings. It solves the problem that existing fire fighting equipment cannot cover high-altitude fire fighting. Firefighters do not need to risk working at high altitudes. The drone 3 can be remotely controlled, reducing the risks of fire spread and smoke poisoning. It has good reliability.

[0036] See Figures 1 to 10 In one embodiment, the water outlet 13 and the water inlet connector 12 are located on both sides of the winding shaft 14 in the radial direction. The water outlet 13 is conical in shape, and the water inlet connector 12 is provided with a conical mating hole 120 with an outer opening. The water outlet 13 and the water inlet connector 12 are mated and engaged.

[0037] See Figures 1 to 6In one embodiment, the water nozzle 131 is mounted on the take-up frame 11 via a telescopic mechanism 16. The telescopic mechanism 16 includes a first push rod 161, a guide mechanism 162, and a movable frame 163. The water nozzle 131 is mounted on the movable frame 163, which is guided and movably mounted on the take-up frame 11 via the guide mechanism 162. The first push rod 161 is mounted on the take-up frame 11, and the movable rod of the first push rod 161 is connected to the movable frame 163 in a transmission connection. With this configuration, the water nozzle 131 can be flexibly extended and retracted by the telescopic mechanism 16, allowing the UAV 3 to dynamically adjust the spray distance and accurately target the fire source during firefighting, significantly improving the mobility and spray efficiency of high-altitude firefighting, while avoiding close contact between the UAV 3 and the fire source, thus preventing damage to the UAV 3.

[0038] See Figures 1 to 8 In one embodiment, the guide mechanism 162 is provided in two sets, respectively located on both sides of the first push rod 161. The guide mechanism 162 includes a first guide sleeve 164 provided on the winding frame 11 and a first guide rod 165 provided on the movable frame 163. The first guide rod 165 is movably sleeved in the first guide sleeve 164. With this arrangement, the two sets of symmetrically arranged guide mechanisms 162 ensure stable guidance of the water nozzle 131 during extension and retraction, effectively preventing the movable frame 163 from deviating or getting stuck, thereby improving the water spray positioning accuracy and device reliability, and adapting to the complex working conditions of high-altitude fire extinguishing.

[0039] See Figures 1 to 8 In one embodiment, the take-up frame 11 includes two oppositely arranged side baffles 111 and a take-up shaft 14 disposed between the two side baffles 111. The two side baffles 111 are connected to each other on both sides of the take-up shaft 14 by connecting rods 112. The side baffles 111 are provided with sockets 113 on their inner sides. The take-up shaft 14 is provided with socket portions 142 at both ends that are rotatably fitted with the sockets 113. The socket portions 142 are fitted with the corresponding sockets 113. With this arrangement, the combination design of the side baffles 111, connecting rods 112 and sockets 113 enables the take-up shaft 14 to achieve stable support and smooth rotation, which not only ensures the reliability of the water inlet pipe 12's take-up and take-up, but also facilitates disassembly and maintenance. The overall structure is compact and strong, meeting the lightweight and shock-resistant requirements when the UAV 3 is mounted.

[0040] See Figures 1 to 8In one embodiment, the water inlet connector 121 and the water outlet 131 are respectively disposed on opposite sides of the winding frame 11; the water passage hole 112 is disposed on one or the other side of the winding shaft 14, and the water inlet connector 121 is disposed at the end near the other side of the winding shaft 14; it also includes a winding guide device 17, which is used to cause the water inlet pipe 12 to be wound in a spiral manner on the winding shaft 14 when the winding shaft 14 winds the water inlet pipe 12; the winding guide device 17 includes a guide mechanism disposed on the winding frame 11, a winding guide seat 171 and a transverse drive mechanism, the winding guide seat 171 being slidably connected to the guide mechanism, and the winding guide seat 171 being slidably connected to the guide mechanism. 1. A winding guide hole 172 is provided. The side of the water inlet pipe 12 near the water inlet connector 121 is placed in the winding guide hole 172. The lateral drive mechanism is used to drive the winding guide seat 171 to slide along the guide mechanism so that when the winding shaft 14 winds up the water inlet pipe 12, the water inlet pipe 12 is wound up on the winding shaft 14 in a spiral manner. With this setting, by optimizing the symmetrical layout of the water inlet connector 121 and the water outlet 131, the offset design of the water passage hole 112 of the winding shaft 14, and the spiral pipe arrangement control of the winding guide device 17, neat winding of the water pipe is achieved during the winding and unwinding process, effectively preventing pipe twisting and knotting, and significantly improving the water supply stability and equipment reliability of high-altitude fire fighting operations.

[0041] See Figures 1 to 8 In one embodiment, the guiding mechanism is provided with at least two sets, and the guiding mechanism includes the connecting rod 112 provided on the winding frame 11, and the winding guide seat 171 is slidably connected to the connecting rod 112. With this arrangement, by providing at least two sets of guiding mechanisms, the winding guide seat 171 can slide smoothly on the connecting rod 112, ensuring that the water inlet pipe 12 is evenly stressed and neatly arranged during the winding process, effectively avoiding water pipe entanglement or deviation, and improving winding and unwinding efficiency and system stability.

[0042] See Figures 1 to 8 In one embodiment, the lateral drive mechanism includes a transmission screw 173 and a screw driver 174 mounted on the take-up frame 11. The screw driver 174 is, for example, a motor. The transmission screw 173 is arranged parallel to the connecting rod 112. The take-up guide seat 171 is provided with a threaded transmission hole 175 that is threadedly engaged with the transmission screw 173. The screw driver 174 drives the transmission screw 173 to rotate, thereby enabling the take-up guide seat 171 to move relative to the connecting rod 112. With this configuration, the lateral displacement of the take-up guide seat 171 can be precisely controlled by the screw drive mechanism, achieving a uniform spiral arrangement of the water inlet pipe 12 on the take-up shaft 14. This effectively prevents the water pipes from stacking or misaligning, ensuring a smooth and reliable take-up and take-up process, while also improving the level of automation and the efficiency of fire extinguishing operations.

[0043] See Figures 1 to 8 In one embodiment, the water outlet pipe 13 includes a water inlet pipe 132, an external pipe 133, and a water outlet hose 134 connected in sequence. The water inlet pipe 132 is placed inside the relief cavity 141, and one end of it is connected to the water inlet pipe 12 through a water passage hole 112. The external pipe 133 is located outside the winding frame 11 and is connected to the other end of the water inlet pipe 132 through a socket joint structure 4 to form a sealed rotatable connection. The other end of the external pipe 133 is placed inside the winding frame 11 and connected to one end of the water outlet hose 134. The water outlet 131 is provided on the water outlet hose 13. 4. At the other end; the external pipe 133 is equipped with a booster pump 136 and a drain solenoid valve 137 for draining the liquid inside. The booster pump 136 is used to stabilize the pressure of the water pipe winding device 1 and deliver liquid water. With this configuration, by setting the water outlet pipe 13 as a water inlet pipe 132, an external pipe 133 and a water outlet hose 134, combined with the socket joint structure 4, the water outlet pipe 13 can be sealed and connected as it rotates with the winding shaft 14. At the same time, the drain solenoid valve 137 can quickly drain the residual liquid, which makes it easy for the winding shaft 14 to quickly complete the winding of the water outlet pipe 13.

[0044] See Figure 9 and Figure 10 In one embodiment, the socket joint structure 4 includes a rotating seat 41 located on the outer periphery of the other end of the water inlet pipe 132 and a connecting seat 42 located on the outer periphery of one end of the external pipe 133. The rotating seat 41 has an insertion groove 43 with an outer opening. The fixed seat 42 is axially movable within the insertion groove 43. The bottom wall of the insertion groove 43 has a sealing groove 44 located on the outer periphery of the opening at the other end of the water inlet pipe 132. A sealing ring (not shown) is provided in the sealing groove 44. The structure also includes an axial actuator (not shown) for driving the fixed seat 42 to move axially along the insertion groove 43. The axial actuator is used to drive the fixed seat 42 and the rotating seat 41 to engage relative to each other to form a sealing fit or to drive the connection. The fixed seat 42 and the rotating seat 41 are relatively separated. This arrangement ensures that when the winding drive device 15 drives the winding shaft 14 to wind or release the water inlet pipe 12, the axial driver drives the fixed seat 42 and the rotating seat 41 to separate, thus controlling the separation between the water inlet pipe 132 and the external pipe 133, guaranteeing that the winding shaft 14 can normally wind or release the water inlet pipe 12. After the winding drive device 15 completes the release of the water inlet pipe 12, the axial driver drives the fixed seat 42 and the rotating seat 41 to engage in a sealed fit, thus controlling the connection between the water inlet pipe 132 and the external pipe 133, ensuring that water flows from the water inlet pipe 132 to the external pipe 133. The axial drive is, for example, a push rod or mechanical mechanism for driving the relative movement of the fixed seat 42.

[0045] See Figures 1 to 10In one embodiment, the water outlet 131 is rotatably mounted on the movable frame 163, for example, the water outlet 131 is rotatably mounted on the movable frame 163 via a bearing; it also includes a rotary drive docking structure, which includes a first connecting seat 18 located outside the water inlet connector 121, a second connecting seat 19 located outside the water outlet 131, and a rotary driver 191 for driving the second connecting seat 19 to rotate relative to each other; the telescopic mechanism 16 is used to drive the water outlet 131 to extend relative to each other and dock with the water inlet connector 121 of the adjacent water pipe retraction device 1, and after the water outlet 131 and the water inlet connector 121 are docked in place, the rotary driver 191 drives the water outlet 131 to rotate relative to the water inlet connector 121. The water outlet 131 rotates relative to the first connecting seat 18 to achieve a rotatable connection between the second connecting seat 19 and the first connecting seat 18, thus realizing the relative connection between the water outlet 131 and the water outlet connector. With this setting, the cooperation between the telescopic mechanism 16 and the rotary drive docking structure realizes the flexible docking and stable connection between the water pipe retraction device 1 of the multi-stage drone 3, thereby supporting high-flow high-altitude fire fighting operations. It effectively solves the problem of insufficient water supply capacity of traditional fire-fighting drones 3, reduces personnel safety risks, and is suitable for higher-altitude and long-distance wildfire fighting scenarios. Firefighters do not need to risk close-range operations. The drone 3 can be remotely controlled, reducing the risks of fire spread and smoke poisoning, and has good reliability.

[0046] See Figures 1 to 10In one embodiment, the second connecting seat 19 and the first connecting seat 18 are rotatably connected by a rotary connection structure. The rotary connection structure includes a first locking block 182 and a first locking seat 183 arranged circumferentially on the first connecting seat 18, and a second locking block 192 and a second locking seat 193 arranged circumferentially on the second connecting seat 19. The first locking seat 183 has an open first slot 184 at one rotatable end, and the second locking seat 193 has an open second slot 194 at one rotatable end. At least one first locking block 182 and one first locking seat 183 are each located on the first connecting seat 18; for example, two first locking blocks 182 and two first locking seats 183 are provided, and the first locking blocks 182 and first locking seats 183 are arranged alternately. At least one second locking block 192 and one second locking seat 193 are each located on the second connecting seat 19; for example, two second locking blocks 192 and two second locking seats 193 are provided. The base 193 is provided with two, and the second locking block 192 and the second locking base 193 are arranged alternately. When the rotary driver 191 drives the water outlet 131 to rotate relative to each other, the first locking block 182 rotates relative to each other and locks into the second locking groove 194 to achieve engagement with the second locking base 193, and the second locking block 192 rotates relative to each other and locks into the first locking groove 184 to achieve engagement with the first locking base 183. With this arrangement, by setting mutually cooperating locking blocks and grooves on the first connecting base 18 and the second connecting base 19 respectively, when the water outlet 131 is connected to the water inlet connector 121, the rotary driver 191 can drive the first locking block 182 and the second locking block 192 to lock into the corresponding grooves respectively, to achieve fast and stable rotation locking, to ensure high sealing and torsion resistance at the water pipe connection, thereby improving the docking reliability and water flow transmission stability between the multi-stage water pipe retraction device 1, and is suitable for high-altitude and high-flow fire extinguishing operations.

[0047] See Figures 1 to 8 In one embodiment, the second connecting seat 19 is provided with an arc-shaped transmission rack 195 on its outer periphery, and the output end of the rotary driver 191 is provided with a transmission gear 196 that meshes with the transmission rack 195. The rotary driver 191 is, for example, a rotary drive motor. With this arrangement, precise rotary drive control is achieved by meshing the output gear of the rotary driver 191 with the arc-shaped rack on the outer periphery of the second connecting seat 19.

[0048] See Figures 1 to 8In one embodiment, the movable frame 163 is provided with a locking push rod 197, the first connecting seat 18 has an outer locking hole 198, and the second connecting seat 19 has an outer locking member 199. The locking member 199 has an opening positioning locking groove 190 on one side along the rotational connection direction of the second connecting seat 19. When the rotary driver 191 drives the water outlet 131 to rotate to the relative position, the positioning locking groove 190 swings relative to the second connecting seat 19 and forms a relative arrangement with the locking hole 198. The output rod extending from the locking push rod 197 passes through the positioning locking groove 190 and the locking hole 198 in sequence to lock the water outlet 131. When the seat 18 separates from the second connecting seat 19, the locking push rod 197 retracts the output rod, causing the output rod to disengage from the positioning lock groove 190 and the lock hole 198. The rotary driver 191 drives the water outlet 131 to rotate in the opposite direction, thereby achieving relative separation between the water outlet 131 and the water inlet connector 121. With this configuration, the locking mechanism inserts the locking push rod 197 into the positioning lock groove 190 and the lock hole 198 after rotation and docking, achieving mechanical hard locking. This effectively prevents accidental loosening of the water pipe connection due to water pressure impact or vibration, further enhancing the stability and safety of the multi-stage water pipe retraction device 1 docking, and ensuring the reliability of continuous high-pressure water delivery during high-altitude firefighting operations.

[0049] See Figures 1 to 10 In one embodiment, the winding frame 11 is provided with a hooking push rod 185 on the side near the first connecting seat 18. The output rod of the hooking push rod 185 is in an extended state. The first connecting seat 18 is provided with a hooking hole 186. The water inlet connector 121 is hooked onto the output rod of the hooking push rod 185 through the hooking hole 186. When the telescopic mechanism 16 drives the water outlet 131 to extend relative to the water inlet connector 121 of the adjacent water pipe winding device 1 to dock, the output rod of the hooking push rod 185 retracts and disengages from the hooking hole 186. With this arrangement, the water inlet pipe 12 is stably suspended in the non-docked state by cooperating with the output rod of the hooking push rod 185 and the hooking hole 186 of the water inlet connector 121, and automatically disengages during docking. This ensures the fixation of the water inlet connector 121 during transportation and storage, and avoids mechanical interference during docking. This makes the rapid docking and disengagement of the multi-water pipe winding device 1 smoother and more efficient, and improves the flexibility and reliability of high-altitude fire fighting operations.

[0050] See Figures 1 to 10In one embodiment, the movable frame 163 is equipped with a docking positioning device 21, and the winding frame 11 is provided with a corresponding marking positioning element 22 on one side of the water inlet connector 121. The docking positioning device 21 is used to identify the marking positioning element 22 of the adjacent water pipe winding device 1 and cause the telescopic mechanism 16 to drive the water outlet 131 to extend relative to each other and dock with the water inlet connector 121 of the adjacent water pipe winding device 1. The marking positioning element 22 and the hooking push rod 185 are set in the same vertical direction. With this setting, through the cooperation of the marking positioning element 22 and the docking positioning device 21, the docking position of the water outlet 131 and the adjacent water inlet connector 121 can be automatically identified and accurately guided. At the same time, combined with the vertical positioning design of the hooking push rod 185, the docking process is ensured to be fast and accurate, reducing manual intervention and improving the automated docking efficiency and reliability of the multi-stage water pipe winding device 1 in high-altitude fire fighting operations.

[0051] See Figures 1 to 6 In one embodiment, the docking positioning device 21 is a visual camera; or, the docking positioning device 21 is a laser docking device; or, the docking positioning device 21 is a photoelectric sensor.

[0052] Example 2:

[0053] See Figures 1 to 13 The main purpose of this embodiment is to provide a drone 3 that uses the water pipe retraction device 1 of the first embodiment, including a flight body 31 and the water pipe retraction device 1 provided on the flight body 31.

[0054] The drone 3 of this utility model has a winding drive device 15 that drives the winding shaft 14 to rotate in both directions, thereby winding or releasing the water inlet pipe 12. This allows the water inlet pipe 12 to be connected to the fire hose on the ground through the water inlet connector 121. The drone 3 then carries the water hose reel 1 to a high altitude and sprays water through the water outlet 131, enabling high-altitude firefighting operations. This effectively overcomes the physical height constraints of traditional ladders, allowing for rapid access to high-rise building fires and solving the problem that existing firefighting equipment cannot cover high-altitude firefighting. Firefighters do not need to risk working at high altitudes. The drone 3 can be remotely controlled, reducing the risks of fire spread and smoke poisoning, and has good reliability.

[0055] In one embodiment, the water pipe retraction device 1 is located inside the aircraft body 31. The aircraft body 31 has an inlet clearance port 32 corresponding to the water inlet connector 121 and an outlet clearance port 33 corresponding to the water outlet nozzle 131. The aircraft body 31 is equipped with a control module, a level, and several telescopic support rods 34 arranged on the lower side. The telescopic support rods 34, through their extended state contact with the ground, combined with the control of the level and the control module, enable the aircraft body 31 to be stably supported on the ground. With this arrangement, the aircraft body 31 can control the different extension strokes of each telescopic support rod 34 according to flat ground, hillside, or different undulating terrain, so that the aircraft body 31 is stably supported on the slope, realizing coordinated operation with ground fire hoses to extinguish wildfires or fires at a greater distance, without firefighters needing to conduct firefighting operations at close range.

[0056] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A water pipe retraction device, characterized in that, include: The winding rack is equipped with a winding shaft located on the inner side and a winding drive device for driving the winding shaft to rotate. The inner side of the winding shaft is provided with a relief cavity with one end open along the length direction, and the outer side of the winding shaft is provided with a water passage hole communicating with the relief cavity. The water inlet pipe is wound around the outer circumference of the take-up shaft, with one end connected to the water passage hole and the other end equipped with a water inlet connector; The water outlet pipe has one end inserted into the clearance cavity and connected to the water inlet pipe through the water passage hole. The other end is provided with a water outlet nozzle, which is set on the winding frame. The water outlet nozzle is arranged opposite to the water inlet connector. The winding drive device drives the winding shaft to rotate in both directions to wind up or unwind the water inlet pipe.

2. The water pipe retraction device according to claim 1, characterized in that, The water outlet is mounted on the winding frame via a telescopic mechanism. The telescopic mechanism includes a first push rod, a guide mechanism, and a movable frame. The water outlet is mounted on the movable frame, which is guided and movably mounted on the winding frame via the guide mechanism. The first push rod is mounted on the winding frame, and the movable rod of the first push rod is kinetically connected to the movable frame.

3. The water pipe retraction device according to claim 2, characterized in that, The guiding mechanism is provided in two sets, located on both sides of the first push rod. The guiding mechanism includes a first guide sleeve provided on the winding frame and a first guide rod provided on the movable frame. The first guide rod is movably sleeved in the first guide sleeve.

4. The water pipe retraction device according to claim 1, characterized in that, The take-up frame includes two oppositely arranged side guards and a take-up shaft disposed between the two side guards. The two side guards are connected to each other on both sides of the take-up shaft by connecting rods. The inner side of the side guard is provided with a socket seat. Both ends of the take-up shaft are provided with socket parts that can be rotatably fitted with the socket seats. The socket parts are fitted with the corresponding socket seats.

5. The water pipe retraction device according to claim 1, characterized in that, The water inlet connector and the water outlet are respectively located on opposite sides of the winding frame; the water passage hole is located on one side or the other side of the winding shaft, and the water inlet connector is located at the end near the other side of the winding shaft. It also includes a winding guide device, which is used to wind the water inlet pipe in a spiral manner on the winding shaft when the winding shaft winds the water inlet pipe. The winding guide device includes a guide mechanism, a winding guide seat and a lateral drive mechanism disposed on the winding frame. The winding guide seat is slidably connected to the guide mechanism. The winding guide seat is provided with a winding guide hole. The side of the water inlet pipe near the water inlet connector is placed in the winding guide hole. The lateral drive mechanism is used to drive the winding guide seat to slide along the guide mechanism so that the water inlet pipe is wound in a spiral manner on the winding shaft when the winding shaft winds the water inlet pipe.

6. The water pipe retraction device according to claim 5, characterized in that, The guiding mechanism is provided with at least two sets, and the guiding mechanism includes a connecting rod provided on the winding frame, and the winding guide seat is slidably connected to the connecting rod.

7. The water pipe retraction device according to claim 6, characterized in that, The transverse drive mechanism includes a transmission screw and a screw driver mounted on the winding frame. The transmission screw is arranged parallel to the connecting rod. The winding guide seat is provided with a threaded transmission hole that is threadedly engaged with the transmission screw. The screw driver drives the transmission screw to rotate, thereby enabling the winding guide seat to move relative to the connecting rod.

8. The water pipe retraction device according to claim 1, characterized in that, The water outlet pipe includes a water inlet pipe, an external pipe, and a water outlet hose connected in sequence. The water inlet pipe is placed inside the clearance cavity and one end of it is connected to the water inlet pipe through a water passage hole. The external pipe is located outside the winding frame and is connected to the other end of the water inlet pipe through a socket joint structure to form a sealed rotatable connection. The other end of the external pipe is placed inside the winding frame and connected to one end of the water outlet hose. The water outlet is located at the other end of the water outlet hose. The socket joint structure includes a rotating seat located on the outer periphery of the other end of the water inlet pipe and a connecting seat located on the outer periphery of one end of the external pipe. The rotating seat has an insertion groove with an outer opening. The fixed seat can be axially movably placed in the insertion groove. The bottom wall of the insertion groove has a sealing groove located on the outer periphery of the opening at the other end of the water inlet pipe. A sealing ring is provided in the sealing groove. The structure also includes an axial driver for driving the fixed seat to move axially along the insertion groove. The axial driver is used to drive the fixed seat and the rotating seat to be relatively joined together to form a sealing fit or to drive the fixed seat and the rotating seat to be relatively separated. The external tube is equipped with a booster pump and a drain solenoid valve for emptying the liquid inside.

9. An unmanned aerial vehicle (UAV), characterized in that, Includes an aircraft body and a water pipe retraction device as described in any one of claims 1 to 8, mounted on the aircraft body.

10. The UAV according to claim 9, characterized in that, The water pipe retraction device is located inside the aircraft body, and the aircraft body is provided with an inlet clearance port corresponding to the water inlet connector and an outlet clearance port corresponding to the water outlet nozzle; The aircraft body is equipped with a level and several telescopic support rods located on the lower side. The telescopic support rods support the aircraft body on the ground by extending and contacting the ground.

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