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. Comprising a winding frame, a water inlet pipe, a water outlet pipe, a telescopic mechanism and a rotary driving butt joint structure; the winding frame is provided with a winding shaft located on the inner side and a winding driving device driving the winding shaft to operate, the water inlet pipe is wound around the periphery of the winding shaft, one end of the water inlet pipe is connected with the water passing hole, the other end of the water inlet pipe is provided with a water inlet connector and a water outlet pipe, one end of the water inlet pipe is arranged in the avoiding cavity and communicates with the water inlet pipe through the water passing hole, and the other end of the water outlet pipe is provided with a water outlet nozzle; the telescopic mechanism is used for supporting the water outlet nozzle to be connected to the winding frame and comprises a first push rod, a guide mechanism and a movable frame, the water outlet nozzle is rotatably arranged on the movable frame, and the movable frame is movably arranged on the winding frame in a guiding mode through the guide mechanism, so that cooperative operation with a ground fire hose is achieved, and forest fire or fire in a farther distance is extinguished; and the firefighter does not need to carry out close-range fire extinguishing operation.

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, wildfire fighting mainly relies on helicopters dropping water bombs, ground-based fire extinguishing bombs, or firefighters spraying water at close range. This approach suffers from limited firefighting range, low efficiency, and high personnel safety risks. In recent years, drone technology has been gradually applied to firefighting; however, existing firefighting drones are limited in function, typically only able to carry fire extinguishing bombs or water bombs for small-scale firefighting operations, failing to meet the demands for continuous, high-volume, high-altitude firefighting. In particular, they lack efficient water delivery capabilities, preventing drones from coordinating with ground-based fire hoses for long-distance firefighting operations, resulting in low firefighting efficiency. Utility Model Content

[0003] 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 long-distance fire-fighting operations. This invention provides a hose retraction device and drone that can coordinate with ground fire hoses for long-distance fire-fighting operations.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A water pipe winding and unwinding device includes a winding frame, an inlet pipe, an outlet pipe, a telescopic mechanism, and a rotary drive docking structure. 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 open end 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. The winding drive device drives the winding shaft to rotate forward and backward, thereby winding or unwinding the inlet pipe. The outlet pipe has one end inserted into the clearance cavity and communicating with the inlet pipe through the water passage hole, and the other end having a water outlet. The telescopic mechanism supports the water outlet connected to the winding frame and includes a first push rod, a guide mechanism, and a movable... The device includes a frame, on which the water outlet is rotatably mounted. The movable frame is guided and movably mounted on the winding frame via a guide mechanism. A first push rod is mounted on the winding frame, and the movable rod of the first push rod is connected to the movable frame via a transmission connection. The rotary drive docking structure includes a first connecting seat located outside the water inlet connector, a second connecting seat located outside the water outlet, and a rotary driver that drives the second connecting seat to rotate relative to each other. The telescopic mechanism is used to drive the water outlet to extend relative to each other and dock with the water inlet connector of the adjacent water pipe winding and unwinding device. After the water outlet and the water inlet connector are docked in place, the rotary driver drives the water outlet to rotate relative to each other, so that the second connecting seat and the first connecting seat are rotatably connected, thereby realizing the relative connection between the water outlet and the water outlet connector.

[0006] Compared with existing technologies, this utility model's water pipe deployment and retraction device is designed for use with drones. The retraction drive mechanism drives the retraction shaft to rotate in both directions, enabling rapid winding and unwinding of the water inlet pipe. This allows the water inlet pipe to connect to a fire hose on the ground via an inlet connector. The drone carries the water pipe deployment and retraction device to a high altitude, where it sprays water through the nozzle, enabling high-altitude or mountain firefighting operations. This achieves efficient docking and continuous water supply between the drone and ground water sources, significantly improving the firefighting range and efficiency. The telescopic mechanism and rotary drive docking structure ensure flexible docking and stable connection between the water pipe deployment and retraction devices of multiple drones, supporting high-flow-rate high-altitude firefighting operations. This effectively solves the problem of insufficient water supply capacity in traditional firefighting drones, reduces personnel safety risks, and is suitable for higher-altitude, long-distance mountain fire fighting scenarios. Firefighters do not need to risk close-range operations, and the drone can be remotely controlled, reducing the risks of fire spread and smoke poisoning. It also boasts high reliability.

[0007] Furthermore, the second connecting seat and the first connecting seat are rotatably connected via a rotary connection structure. This rotary connection structure includes a first locking block and a first locking seat arranged circumferentially on the first connecting seat, and a second locking block and a second locking seat arranged circumferentially on the second connecting seat. The first locking seat has an open first slot at one end that rotates relative to the first connecting seat, and the second locking seat has an open second slot at one end that rotates relative to the second connecting seat. At least one first locking block and one first locking seat are each located on the first connecting seat, and at least one second locking block and one second locking seat are each located on the second connecting seat. When the rotary driver drives the water outlet to rotate relative to the first connecting seat... The first locking block rotates relative to the second locking slot to engage with the second locking seat, and the second locking block rotates relative to the first locking slot to engage with the first locking seat. With this configuration, by setting mutually cooperating locking blocks and slots on the first and second connecting seats respectively, when the water outlet is connected to the water inlet connector, the rotary driver can drive the first and second locking blocks to engage with the corresponding slots respectively, achieving fast and stable rotational locking, ensuring high sealing and torsional resistance at the water pipe connection, thereby improving the docking reliability and water flow transmission stability between multi-stage water pipe retraction devices, and is suitable for high-altitude, high-flow fire extinguishing operations.

[0008] Furthermore, the second connecting seat has an arc-shaped transmission rack on its outer periphery, and the output end of the rotary driver has a transmission gear that meshes with the transmission rack; with this arrangement, precise rotary drive control is achieved by meshing the output gear of the rotary driver with the arc-shaped rack on the outer periphery of the second connecting seat.

[0009] Furthermore, the movable frame is equipped with a locking push rod, a locking hole on the outer side of the first connecting seat, and a locking member on the outer side of the second connecting seat. The locking member has an opening positioning lock groove on one side along the rotational connection direction of the second connecting seat. When the rotary driver drives the water nozzle to rotate to the relative position, the positioning lock groove swings relative to the second connecting seat and forms a relative setting with the locking hole. The output rod extending from the locking push rod passes through the positioning lock groove and the locking hole in sequence to lock the water nozzle. With this setting, the locking mechanism inserts into the positioning lock groove and the locking hole after the locking push rod is rotated to the position, realizing 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 docking, and ensuring the reliability of continuous high-pressure water supply during high-altitude fire fighting operations.

[0010] Furthermore, the winding frame is provided with a hook-up push rod on the side near the first connecting seat. The output rod of the hook-up push rod is in an extended state. The first connecting seat is provided with a hook-up hole. The water inlet connector is hooked onto the output rod of the hook-up push rod through the hook-up hole. When the telescopic mechanism drives the water outlet to extend and align with the water inlet connector of the adjacent water pipe winding device, the output rod of the hook-up push rod retracts and disengages from the hook-up hole. With this configuration, the water inlet pipe remains stably suspended in the non-aligned state and automatically disengages during alignment. This ensures the stability of the water inlet connector during transportation and storage, avoids mechanical interference during alignment, and makes the rapid alignment and separation of the multi-water pipe winding device smoother and more efficient, improving the flexibility and reliability of high-altitude firefighting operations.

[0011] Furthermore, the movable frame is equipped with a docking positioning device, and the winding frame is provided with a corresponding marking positioning element on one side of the water inlet connector. The docking positioning device is used to identify the marking positioning element of the adjacent water pipe winding and unwinding device and to drive the telescopic mechanism to extend the water outlet nozzle relative to the water inlet connector of the adjacent water pipe winding and unwinding device for docking. The marking positioning element and the hooking push rod are set in the same vertical direction. With this setting, through the cooperation of the marking positioning element and the docking positioning device, the docking position of the water outlet nozzle and the adjacent water inlet connector can be automatically identified and accurately guided. At the same time, combined with the vertical positioning design of the hooking push rod, the docking process is ensured to be fast and accurate, reducing manual intervention and improving the automated docking efficiency and reliability of multi-stage water pipe winding and unwinding devices in high-altitude fire extinguishing operations.

[0012] Furthermore, the docking positioning device is a visual camera; or, the docking positioning device is a laser docking device; or, the docking positioning device is a photoelectric sensor.

[0013] 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.

[0014] 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.

[0015] The drone includes a flight body and a water hose retraction and deployment device mounted on the flight body. With this configuration, the drone's retraction drive device drives the retraction shaft to rotate in both directions, enabling rapid retraction or release of the water inlet pipe. This allows the water inlet pipe to connect to a ground-based fire hose via an inlet connector, achieving efficient docking and continuous water supply between the drone and ground water sources, significantly improving firefighting range and efficiency. The telescopic mechanism and rotary drive docking structure ensure flexible docking and stable connection between the water hose retraction and deployment devices of multiple drones, supporting high-volume, high-altitude firefighting operations. This effectively solves the problem of insufficient water supply capacity in traditional firefighting drones, reduces personnel safety risks, and is suitable for higher-altitude, long-distance wildfire fighting scenarios. Firefighters do not need to risk close-range operations; the drone can be remotely controlled, reducing the risks of fire spread and smoke poisoning, and offering high reliability.

[0016] 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. These telescopic support rods, when extended, contact the ground to support 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 the hillside or different undulating terrain, ensuring the aircraft body is stably supported on the slope. This enables coordinated operation with ground fire hoses to extinguish wildfires or fires at greater distances, eliminating the need for firefighters to conduct close-range firefighting operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a water pipe retraction device in a retracted state.

[0018] Figure 2 A schematic diagram of a water pipe retraction device with the outlet pipe extended. Figure 1 .

[0019] Figure 3 This is a schematic diagram of the winding guide seat.

[0020] Figure 4 A schematic diagram of a water pipe retraction device with the outlet pipe extended. Figure 2 .

[0021] Figure 5 This is an exploded view of a water pipe retraction device.

[0022] Figure 6 This is a schematic diagram showing the connection state of the inlet connector and the outlet nozzle.

[0023] Figure 7 This is a schematic diagram of the water outlet.

[0024] Figure 8 This is a schematic diagram of the water inlet connector.

[0025] Figure 9 This is a schematic diagram of a water pipe retraction device in which the fixed seat and the rotating seat are separated.

[0026] Figure 10 This is a schematic diagram of the fixed seat and the rotating seat in the assembled state of a water pipe retraction device.

[0027] Figure 11 This is a schematic diagram of a drone with its water inlet pipe extended.

[0028] 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.

[0029] Figure 13 This 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.

[0030] 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

[0031] 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.

[0032] Example 1:

[0033] See Figures 1 to 13This utility model discloses a water pipe winding and unwinding device 1, comprising a winding frame 11, an inlet pipe 12, an outlet pipe 13, a telescopic mechanism 16, and a rotary drive docking structure. The winding frame 11 is provided with a winding shaft 14 located on the inner side and a winding drive device 15 for driving the winding shaft 14. The winding drive device 15 is, 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 relief cavity 141 with one end open along the length direction, and the outer side of the winding shaft 14 is provided with a passageway communicating with the relief cavity 141. Water hole 112; water inlet pipe 12, wound around the outer periphery of take-up shaft 14, one end connected to water hole 112, the other end provided with water inlet connector 121, take-up drive device 15 drives take-up shaft 14 to rotate forward and reverse to realize take-up or release of water inlet pipe 12; water outlet pipe 13, one end inserted into relief cavity 141 and connected to water inlet pipe 12 through water hole 112, the other end provided with water outlet nozzle 131; telescopic mechanism 16, used to support water outlet nozzle 131 connected to take-up frame 11, including first push rod 161, guide Mechanism 162 and movable frame 163, with water outlet 131 rotatably mounted on movable frame 163, for example, water outlet 131 is rotatably mounted on movable frame 163 via bearings, and movable frame 163 is guided and movably mounted on winding frame 11 via guide mechanism 162, first push rod 161 is mounted on winding frame 11, and movable rod of first push rod 161 is drively connected to movable frame 163; rotary drive docking structure includes a first connecting seat 18 located outside water inlet connector 121 and a connecting seat 18 located on water outlet 163. The second connecting seat 19 on the outer side of 131 and the rotary driver 191 that drives 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 each other, so that the second connecting seat 19 and the first connecting seat 18 are rotated together, thereby realizing the relative connection between the water outlet 131 and the water outlet connector.

[0034] See Figures 1 to 8 In one embodiment, the water outlet 131 and the water inlet connector 121 are located on both sides of the winding shaft 14 in the radial direction. The water outlet 131 is conical in shape, and the water inlet connector 121 is provided with a docking hole 120 with an outer opening and a conical shape. The water outlet 131 and the docking hole 120 of the water inlet connector 121 are docked and fitted together.

[0035] Compared with existing technologies, the water pipe deployment and retraction device 1 of this utility model is used to carry a drone 3. The winding drive device 15 drives the winding shaft 14 to rotate in both directions, realizing the rapid winding or release of 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. With the help of the drone 3, the water pipe deployment and retraction device 1 is carried to a high altitude and sprays water through the water outlet 131, enabling mountain or high-altitude fire fighting operations. This achieves efficient docking and continuous water supply between the drone 3 and the ground water source, significantly improving the fire fighting range and efficiency. The telescopic mechanism 16 and the rotary drive docking structure ensure flexible docking and stable connection between the water pipe deployment and retraction devices 1 of the multi-stage drone 3, thereby supporting high-flow high-altitude fire fighting operations. This 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 mountain fire 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.

[0036] 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, and 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 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. There is one, for example, two second locking blocks 192 and two locking seats 193 are provided respectively, and the second locking blocks 192 and the second locking seats 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 slot 194 to achieve locking with the second locking seat 193, and the second locking block 192 rotates relative to each other and locks into the first locking slot 184 to achieve locking with the first locking seat 183; with this setting, by setting mutually cooperating locking blocks and slots on the first connecting seat 18 and the second connecting seat 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 slots respectively, to achieve fast and stable rotation locking, to ensure high sealing and anti-torsion ability of the water pipe connection, thereby improving the docking reliability and water flow transmission stability between the multi-stage water pipe retraction device 1, which is suitable for high-altitude and high-flow fire extinguishing operations.

[0037] See Figures 1 to 10 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.

[0038] See Figures 1 to 10In 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.

[0039] 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.

[0040] 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.

[0041] See Figures 1 to 4 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.

[0042] See Figures 1 to 10 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.

[0043] See Figures 1 to 10 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.

[0044] See Figures 1 to 10In 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.

[0045] See Figures 1 to 10 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.

[0046] See Figures 1 to 10 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.

[0047] See Figures 1 to 10 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.

[0048] 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.

[0049] Example 2:

[0050] See Figures 1 to 13The 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.

[0051] The UAV 3 of this invention features a rewind drive device 15 that drives the rewind shaft 14 to rotate in both directions, enabling rapid rewinding or unwinding of the water inlet pipe 12. This allows the water inlet pipe 12 to connect to a fire hose on the ground via the water inlet connector 121, achieving efficient connection and continuous water supply between the UAV 3 and ground water sources, significantly improving the firefighting range and efficiency. The telescopic mechanism 16 and the rotary drive docking structure ensure flexible docking and stable connection between the water pipe rewinding and unwinding devices 1 of the multi-stage UAV 3, supporting high-volume, high-altitude firefighting operations. This effectively solves the problem of insufficient water supply capacity in traditional firefighting UAVs 3, reduces personnel safety risks, and is suitable for higher-altitude, long-distance wildfire fighting scenarios. Firefighters do not need to risk close-range operations, and the UAV 3 can be remotely controlled, reducing the risks of fire spread and smoke poisoning, and demonstrating high reliability.

[0052] See Figures 1 to 10 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 configured 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 configuration, 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.

[0053] 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 and deployment 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. One end is connected to the water passage hole, and the other end is equipped with a water inlet connector. The take-up drive device drives the take-up shaft to rotate in both directions to achieve the winding or unwinding of the water inlet pipe. The water outlet pipe has one end inserted into the clearance cavity and connected to the water inlet pipe through the water passage hole, and the other end is equipped with a water outlet. A telescopic mechanism for supporting the water outlet connected to the winding frame includes a first push rod, a guide mechanism, and a movable frame. The water outlet is rotatably mounted on the movable frame, which is guided to be movably mounted on the winding frame by the guide mechanism. The first push rod is mounted on the winding frame, and the movable rod of the first push rod is connected to the movable frame in a transmission manner. The rotary drive docking structure includes a first connecting seat located outside the water inlet connector, a second connecting seat located outside the water outlet, and a rotary drive that drives the second connecting seat to rotate relative to each other. The telescopic mechanism is used to drive the water outlet to extend outwards and connect with the inlet connector of the adjacent water pipe retraction device. After the water outlet and the inlet connector are connected in place, the water outlet is driven to rotate relative to each other by a rotary driver so that the second connecting seat and the first connecting seat are rotatably connected, thereby realizing the relative connection between the water outlet and the water outlet connector.

2. The water pipe retraction device according to claim 1, characterized in that, The second connecting seat and the first connecting seat are rotatably connected by a rotary connecting structure. The rotary connecting structure includes a first locking block and a first locking seat arranged circumferentially on the first connecting seat, and a second locking block and a second locking seat arranged circumferentially on the second connecting seat. The first locking seat has an open first slot at one end that is rotatably opposite to the first connecting seat, and the second locking seat has an open second slot at one end that is rotatably opposite to the second connecting seat. At least one first locking block and one first locking seat are respectively located on the first connecting seat, and at least one second locking block and one second locking seat are respectively located on the second connecting seat. When the rotary driver drives the water outlet to rotate relative to each other, the first card block rotates relative to each other and engages with the second card slot to achieve engagement with the second card seat, and the second card block rotates relative to each other and engages with the first card slot to achieve engagement with the first card seat.

3. The water pipe retraction device according to claim 1, characterized in that, The second connecting seat has an arc-shaped transmission rack on its outer periphery, and the output end of the rotary driver has a transmission gear that meshes with the transmission rack.

4. The water pipe retraction device according to claim 1, characterized in that, The movable frame is equipped with a locking push rod, a locking hole on the outer side of the first connecting seat, and a locking member on the outer side of the second connecting seat. The locking member has an opening positioning lock groove on one side along the rotational connection direction of the second connecting seat. When the rotary driver drives the water outlet to rotate to the relative position, the positioning lock groove swings relative to the second connecting seat and forms a relative setting with the locking hole. The output rod extending from the locking push rod passes through the positioning lock groove and the locking hole in sequence to lock the water outlet.

5. The water pipe retraction device according to claim 1, characterized in that, The winding frame is provided with a hooking push rod on the side near the first connecting seat. The output rod of the hooking push rod is in an extended state. The first connecting seat is provided with a hooking hole. The water inlet connector is hooked onto the output rod of the hooking push rod through the hooking hole. When the telescopic mechanism drives the water outlet to extend and connect with the water inlet connector of the adjacent water pipe winding device, the output rod of the hooking push rod retracts and disengages from the hooking hole.

6. The water pipe retraction device according to claim 5, characterized in that, The movable frame is equipped with a docking positioning device, and the winding frame is provided with a corresponding identification positioning element on one side of the water inlet connector. The docking positioning device is used to identify the identification positioning element of the adjacent water pipe winding device and to drive the telescopic mechanism to extend the water outlet to dock with the water inlet connector of the adjacent water pipe winding device. The marking and positioning component and the hanging push rod are arranged in the same vertical direction; The docking positioning device is a visual camera; Alternatively, the docking positioning device may be a laser docking device; Alternatively, the docking positioning device may be a photoelectric sensor.

7. The water pipe retraction device according to claim 1, 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.

8. 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.

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 a water inlet clearance port corresponding to the water inlet connector and a water 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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