Water pipe winding device, unmanned aerial vehicle and unmanned aerial vehicle waterway lap joint method

Abstract

The invention belongs to the technical field of unmanned aerial vehicle fire fighting, and particularly relates to a water pipe winding device, an unmanned aerial vehicle and an unmanned aerial vehicle waterway lap joint method. The water pipe winding and unwinding device is used for carrying the unmanned aerial vehicle for use, the winding driving device drives the winding shaft to rotate forwards and backwards, so that the water inlet pipe is rapidly wound or released, and the water inlet pipe can be 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 the unmanned aerial vehicle, water is sprayed through the water outlet nozzle, mountain or high-altitude fire extinguishing operation can be conducted, efficient butt joint of the unmanned aerial vehicle and a ground water source and continuous water source conveying are achieved, and the fire extinguishing range and efficiency are remarkably improved. The problem that a traditional fire-fighting unmanned aerial vehicle is insufficient in water source conveying capacity is well solved, the personnel safety risk is reduced, the unmanned aerial vehicle is suitable for higher-altitude and long-distance forest fire fighting scenes, firemen do not need to carry out short-distance risk taking operation, the unmanned aerial vehicle can be remotely controlled, the risks of fire spreading, smoke poisoning and the like are reduced, and the use reliability is good.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicle (UAV) firefighting, and in particular relates to a water pipe reeling device, an unmanned aerial vehicle (UAV), and a method for connecting a UAV waterway. Background Art

[0002] Currently, wildfire fighting primarily relies on helicopter-dropped water bombs, ground-based fire extinguishing bombs, or close-range water spraying by firefighters. Urban high-rise building firefighting, on the other hand, relies primarily on fire ladder trucks. Both of these firefighting tasks suffer from limited firefighting range, low efficiency, and high personnel safety risks. In recent years, drone technology has been gradually applied to firefighting, but existing firefighting drones are limited in functionality, typically only able to carry fire extinguishing bombs or water bombs for small-scale firefighting. They are unable to meet the needs of sustained, high-volume, high-altitude firefighting. In particular, they lack efficient water delivery capabilities, making them ineffective in long-range firefighting operations, as they cannot coordinate with ground-based fire hoses or fire truck water sources. Summary of the Invention

[0003] The purpose of the present invention is to overcome the problem that existing fire-fighting drones lack a water pipe retraction device, making it difficult to coordinate with ground fire hoses or fire truck water sources to perform long-distance firefighting operations, and to provide a water pipe retraction device, a drone and a drone water channel connection method that can coordinate with ground fire hoses or fire truck water sources to perform long-distance or high-altitude firefighting operations.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The water pipe retracting and releasing device includes a reeling frame, a water inlet pipe, a water outlet pipe, and a telescopic mechanism; the reeling frame is provided with a reeling shaft located on the inner side and a reeling drive device for driving the reeling shaft to operate, the inner side of the reeling shaft is provided with a avoidance cavity with one end open along the axial direction, and the outer side of the reeling shaft is provided with a water through hole connected to the avoidance cavity; the water inlet pipe is wound around the outer circumference of the reeling shaft, one end is connected to the water through hole, and the other end is provided with a water inlet joint, and the water inlet joint is provided with a docking hole with an outer end open and in a cone shape, and the reeling drive device realizes the reeling or releasing of the water inlet pipe by driving the reeling shaft to rotate forward and reverse; the water outlet pipe, one end of which is placed in the avoidance cavity and connected to the water inlet pipe through the water through hole, and the other end is provided with a water outlet nozzle, which is conical and adapted to the docking hole, and the water outlet nozzle and the water inlet joint are respectively located on both sides of the reeling shaft along the radial direction; the telescopic mechanism is used to support The water outlet is connected to the winding frame, and includes a first push rod, a guide mechanism and a movable frame. The water outlet is rotatably arranged on the movable frame, and the movable frame is movably arranged on the winding frame through the guide mechanism. The first push rod is arranged on the winding frame, and the movable rod of the first push rod is transmission-connected to the movable frame; the rotation-driven docking structure includes a first connecting seat arranged on the outside of the water inlet joint, a second connecting seat arranged on the outside of the water outlet and a rotating 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 relatively and dock with the water inlet joint of an adjacent water pipe retracting device, and after the water outlet and the water inlet joint are docked in place, the water outlet is driven to rotate relatively by the rotary driver, so that the second connecting seat is rotationally connected to the first connecting seat, thereby realizing the relative connection between the water outlet and the water outlet joint.

[0006] Compared with the prior art, the water pipe retracting and releasing device of the present invention is used for use with drones. The reeling drive device drives the reeling shaft to rotate forward and reverse to achieve rapid reeling or releasing of the water inlet pipe, so that the water inlet pipe can be connected to the fire hose on the ground through the water inlet joint. The water pipe retracting and releasing device is carried to a high altitude by the drone and water is sprayed through the water outlet, so that firefighting operations can be carried out on the mountain or at high altitudes. The efficient docking and continuous water supply between the drone and the ground water source are achieved, which significantly improves the scope and efficiency of firefighting. The telescopic mechanism and the rotary drive docking structure ensure the flexible docking and stable connection between the water pipe retracting and releasing devices of the multi-stage drones, thereby supporting high-flow high-altitude firefighting operations, effectively solving the problem of insufficient water supply capacity of traditional firefighting drones, reducing personnel safety risks, and being suitable for higher-altitude and long-distance mountain fire fighting scenarios. Firefighters do not need to operate at close range. The drone can be remotely controlled, reducing the risks of fire spread, smoke poisoning, etc., and has good reliability.

[0007] Furthermore, the second connecting seat is rotatably connected to the first connecting seat by a rotating connection structure, and the rotating connection structure includes a first clamping block and a first clamping seat arranged circumferentially on the first connecting seat, and a second clamping block and a second clamping seat arranged circumferentially on the second connecting seat, one end of the first clamping seat that rotates relatively is provided with a first clamping groove with an opening, and one end of the second clamping seat that rotates relatively is provided with a second clamping groove with an opening, the first clamping block and the first clamping seat are respectively provided with at least one on the first connecting seat, and the second clamping block and the second clamping seat are respectively provided with at least one on the second connecting seat; when the rotating driver drives the water outlet to rotate relative to each other The first clamping block is relatively rotated and clamped into the second clamping groove to realize clamping with the second clamping seat, and the second clamping block is relatively rotated and clamped into the first clamping groove to realize clamping with the first clamping seat; through such an arrangement, by respectively arranging mutually matching clamping blocks and clamping grooves on the first connecting seat and the second connecting seat, when the water outlet is docked with the water inlet joint, the rotary driver can drive the first clamping block and the second clamping block to respectively clamp into the corresponding clamping grooves, thereby realizing fast and stable rotation locking, ensuring 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 and extension devices, and is suitable for high-altitude and large-flow fire extinguishing operations.

[0008] Furthermore, an arc-shaped transmission rack is provided on the outer periphery of the second connecting seat, and a transmission gear meshing with the transmission rack is provided at the output end of the rotary driver; through such an 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, a locking push rod is provided on the movable frame, a locking hole is provided on the outer side of the first connecting seat, and a locking piece is provided on the outer side of the second connecting seat, and an open positioning lock groove is provided on one side of the locking piece along the rotational connection direction of the second connecting seat. When the rotary driver drives the water outlet to rotate into position relatively, the positioning lock groove swings relative to the second connecting seat to form a relative arrangement with the lock hole, and the output rod extended by the locking push rod passes through the positioning lock groove and the lock hole in sequence to lock the water outlet; through such an arrangement, the locking mechanism inserts the locking push rod into the positioning lock groove and the lock hole after the rotation and docking into position, thereby realizing mechanical hard locking, effectively preventing the water pipe connection from accidentally loosening due to water pressure shock or vibration, further enhancing the stability and safety of the docking of the multi-stage water pipe retraction and deployment device, and ensuring the reliability of continuous high-pressure water supply during high-altitude fire fighting operations.

[0010] Furthermore, a hanging push rod is provided on the side of the winding rack close to the first connecting seat, and the output rod of the hanging push rod is in an extended state. The first connecting seat is provided with a hanging hole, and the water inlet joint is hung on the output rod of the hanging push rod through the hanging hole. When the telescopic mechanism drives the water outlet nozzle to extend relatively to dock with the water inlet joint of the adjacent water pipe retracting and releasing device, the output rod of the hanging push rod retracts and disengages from the hanging hole; through such a setting, the output rod of the hanging push rod cooperates with the hanging hole of the water inlet joint, so that the water inlet pipe remains stably suspended in a non-docked state and automatically detaches when docked, which not only ensures the fixity of the water inlet joint during transportation and storage, but also avoids mechanical interference during the docking process, making the rapid docking and separation of the multi-water pipe retracting and releasing device smoother and more efficient, and improving the flexibility and reliability of high-altitude fire fighting operations.

[0011] Furthermore, the movable frame is provided with a docking positioning device, and the winding frame is located on one side of the water inlet joint and is provided with an identification positioning piece corresponding thereto, and the docking positioning device is used to identify the identification positioning piece of the adjacent water pipe retracting device and enable the telescopic mechanism to drive the water outlet to extend relatively and dock with the water inlet joint of the adjacent water pipe retracting device; the identification positioning piece and the hanging push rod are arranged in the same vertical direction; through such an arrangement, the docking position of the water outlet and the adjacent water inlet joint can be automatically identified and accurately guided through the cooperation of the identification positioning piece and the docking positioning device, and at the same time, combined with the vertical positioning design of the hanging push rod, it is ensured that the docking process is fast and accurate, reduces manual intervention, and improves the efficiency and reliability of the automated docking of the multi-stage water pipe retracting device in high-altitude fire fighting operations.

[0012] The water passage is arranged at one end of the winding shaft, and the water inlet joint is arranged at the other end near the winding shaft; it also includes a winding guide device, and the winding guide device is used to make the water inlet pipe be wound on the winding shaft in a spiral manner when the winding shaft winds up the water inlet pipe; the winding guide device includes a guide mechanism, a winding guide seat and a transverse driving mechanism arranged 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, and the side of the water inlet pipe close to the water inlet joint is placed in the winding guide hole, and the transverse driving mechanism is used to drive the winding guide seat to slide along the guide mechanism so that the water inlet pipe is spirally wound on the winding shaft when the water inlet pipe is wound up by the winding shaft; through such an arrangement, by optimizing the symmetrical layout of the water inlet joint and the water outlet nozzle, 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 reeling and releasing process, effectively preventing the pipe from twisting and tangling, and significantly improving the water supply stability and equipment reliability of high-altitude fire fighting operations.

[0013] Furthermore, the guiding mechanism is provided with at least two groups, 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; through such an arrangement, by providing at least two groups of guiding mechanisms, the winding guide seat slides smoothly on the connecting rod, ensuring that the water inlet pipe is evenly stressed and neatly arranged during the winding process, effectively avoiding entanglement or deviation of the water pipe, and improving the winding and releasing efficiency and system stability.

[0014] Furthermore, the lateral drive mechanism includes a transmission screw and a screw driver provided 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 cooperates with the transmission screw thread, and the screw driver drives the transmission screw to operate to realize the relative movement of the winding guide seat along the connecting rod; through such an arrangement, the lateral displacement of the winding guide seat is accurately controlled by the screw transmission mechanism, so as to realize the uniform spiral arrangement of the water inlet pipe on the winding shaft, effectively prevent the water pipe from stacking or misalignment, ensure the smooth and reliable winding and releasing process, and at the same time improve the degree of automation and the efficiency of fire extinguishing operations.

[0015] Furthermore, the water outlet pipe includes a water receiving pipe, an external pipe and a water outlet hose connected in sequence. The water receiving pipe is placed in the avoidance cavity and one end of it is connected to the water inlet pipe through a water hole. The external pipe is located on the outside of the winding frame and forms a sealed rotation connection with the other end of the water receiving pipe through a socket joint structure. The other end of the external pipe is placed on the inside of the winding frame and connected to one end of the water outlet hose, and the water outlet nozzle is provided at the other end of the water outlet hose; the external pipe is equipped with a booster pump and a drain solenoid valve for emptying the liquid inside it; through such an arrangement, by setting the water outlet pipe as the water receiving pipe, the external pipe and the water outlet hose, combined with the socket joint structure, a sealed connection of the water outlet pipe is achieved as the winding shaft rotates, and at the same time, the drain solenoid valve can quickly empty the residual liquid, so that the winding shaft can quickly complete the winding of the water outlet pipe.

[0016] Furthermore, the socket joint structure includes a rotating seat provided on the outer periphery of the other end of the water receiving pipe and a connecting seat provided on the outer periphery of one end of the external pipe, the rotating seat is provided with a plug-in groove with an outer opening, the fixed seat can be axially movably placed in the plug-in groove, the bottom wall of the plug-in groove is located on the outer periphery of the opening of the other end of the water receiving pipe and is provided with a sealing groove, a sealing ring is provided in the sealing groove, and an axial driver is also included for driving the fixed seat to move axially along the plug-in groove, the axial driver is used to drive the fixed seat and the rotating seat to relatively engage to form a sealed fit or drive the fixed seat A relative separation is formed between the seat and the rotating seat; through such an arrangement, when the winding drive device drives the winding shaft to wind up or release the water inlet pipe, the axial drive drives the fixed seat and the rotating seat to be relatively separated, that is, the water receiving pipe and the external pipe are controlled to be separated, ensuring that the winding shaft can normally wind up or release the water inlet pipe; after the winding shaft of the winding drive device completes releasing the water inlet pipe, the axial drive drives the fixed seat and the rotating seat to be assembled to form a sealing fit, that is, the water receiving pipe and the external pipe are controlled to be connected, ensuring that water flows from the water receiving pipe to the external pipe.

[0017] The unmanned aerial vehicle comprises a flying body and the water pipe retracting and extending device arranged on the flying body.

[0018] Compared with the prior art, the drone of the present invention has a reeling drive device that drives the reeling shaft to rotate forward and reverse to achieve rapid reeling or releasing of the water inlet pipe, so that the water inlet pipe can be connected to the fire hose on the ground through the water inlet joint. The water pipe reeling device is carried to a high altitude by the drone and water is sprayed through the water outlet, so that firefighting operations can be carried out on the mountain or at high altitudes. The drone and the ground water source are efficiently docked and the water source is continuously delivered, which significantly improves the scope and efficiency of firefighting. The telescopic mechanism and the rotary drive docking structure ensure the flexible docking and stable connection between the water pipe reeling devices of the multi-stage drones, thereby supporting high-flow high-altitude firefighting operations, effectively solving the problem of insufficient water source delivery capacity of traditional firefighting drones, reducing personnel safety risks, and being suitable for higher-altitude and long-distance mountain fire fighting scenarios. Firefighters do not need to operate at close range and risk, and the drone can be remotely controlled, reducing the risks of fire spread, smoke poisoning, etc., and having good reliability.

[0019] Furthermore, the water pipe retracting and extending device is arranged on the inner side of the aircraft body, and the aircraft body is provided with a water inlet avoidance port corresponding to the water inlet joint and a water outlet avoidance port corresponding to the water outlet nozzle; the aircraft body is provided with a spirit level and a plurality of telescopic support rods arranged on the lower side, and the plurality of telescopic support rods are in contact with the ground in their extended state to support the aircraft on the ground. Through such an arrangement, the aircraft body can control the different extension strokes of each telescopic support rod according to flat land, hillside or different undulating terrain, so that the aircraft body is stably supported on the slope, and realizes coordinated operation with the ground fire hose to extinguish forest fires or fires at a longer distance, and firefighters do not need to perform firefighting operations at close range.

[0020] A method for connecting water channels of unmanned aerial vehicles (UAVs) includes a plurality of said UAVs, and the method for connecting water channels includes the following steps: a plurality of UAVs are flown to and arranged between a fire location and a water source location, and the water outlets of a water pipe retracting device are directed toward the fire location, the telescopic mechanism of the water pipe retracting device drives the water outlets to extend relatively and dock with the water inlet joints of the water pipe retracting devices of adjacent UAVs, after the water outlets and the water inlet joints are docked in place, the rotary drive drives the water outlets to rotate relatively, and the second connecting seat of the water outlets and the first connecting seat of the water inlet joint are rotationally connected, so that the water outlets and the water outlet joints are relatively connected; each UAV has no The reeling drive device of the human-machine water pipe reeling device drives the reeling shaft to rotate relative to each other, releasing the usable length of the water inlet pipe. At the same time, each drone approaches the fire location and the water source location respectively, so that the distance between the drones is relatively increased and adapted to the extended length of the water inlet pipe; each drone maintains a flying state or is supported and stabilized on the ground by a telescopic support rod; the water inlet joint of the water pipe reeling device of the drone close to the water source location is connected to the ground fire hose or the water source of the fire truck and the water source is turned on, so that the water outlet of the water pipe reeling device of the drone close to the fire location sprays fire water to extinguish the fire location.

[0021] Compared with the prior art, the drone water channel splicing method of the present invention, the winding drive device drives the winding shaft to rotate forward and reverse to realize the rapid reeling or releasing of the water inlet pipe, and the water channel splicing can be realized between the water pipe retracting and releasing devices of multiple drones, so that the ground water source can be transported to high altitude or long-distance fire scenes. Multiple drones realize fast and reliable water pipe connection through the telescopic docking mechanism and the rotary locking device, forming a stable high-altitude water transmission channel, so that the fire fighting operation height can reach hundreds of meters and the distance can be extended to the kilometer level. It completely breaks through the height and range limitations of traditional fire ladders and helicopters, supports large-flow continuous water supply, can cope with full-facade fires in high-rise buildings, and solve the problem of remote fire fighting in complex terrains such as mountains, and also solves the problem of insufficient water source transportation capacity of traditional fire-fighting drones, reduces personnel safety risks, and is suitable for higher-altitude and long-distance mountain fire fighting scenarios. Firefighters do not need to operate at close range. The drones can be remotely controlled to reduce the risks of fire spread, smoke poisoning, etc., and have good reliability in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the water pipe retractable device with the water outlet pipe in the retracted state.

[0023] Figure 2 The water outlet pipe of the water pipe retractable device is shown in the extended state Figure 1 .

[0024] Figure 3 Schematic diagram of the winding guide seat.

[0025] Figure 4 The water outlet pipe of the water pipe retractable device is shown in the extended state Figure 2 .

[0026] Figure 5 This is an exploded view of the water pipe retraction device.

[0027] Figure 6 This is a schematic diagram of the docking status of the water inlet joint and the water outlet nozzle.

[0028] Figure 7 Schematic diagram of the water outlet.

[0029] Figure 8 Schematic diagram of the water inlet connector.

[0030] Figure 9 This is a schematic diagram of the water pipe retractable device showing the fixed seat and the rotating seat separated.

[0031] Figure 10 This is a schematic diagram of the assembled state of the fixed seat and the rotating seat in the water pipe retracting and extending device.

[0032] Figure 11 Schematic diagram of the drone with the water inlet pipe extended.

[0033] Figure 12 A schematic diagram of multiple drones building water channels in the air and connecting to the water source of fire trucks to fight high-altitude fires.

[0034] Figure 13 A schematic diagram of multiple drones building a water channel on a slope and connecting to the water source of a fire truck to fight a high-altitude fire.

[0035] Explanation of reference numerals: water pipe retracting and releasing device 1, reeling frame 11, water inlet pipe 12, water outlet pipe 13, reeling shaft 14, reeling drive device 15, avoidance chamber 141, water hole 112, water inlet joint 121, water outlet nozzle 131, telescopic mechanism 16, first push rod 161, guide mechanism 162, movable frame 163, first guide sleeve 164, first guide rod 165, side block frame 111, connecting rod 112, socket seat 113, socket portion 142, reeling guide device 17, reeling guide seat 171, reeling guide hole 172, transmission screw 173, screw driver 174, threaded transmission hole 175, water receiving pipe 132, external pipe 133, water outlet hose 134, booster pump 136, exhaust pipe Water solenoid valve 137, first connecting seat 18, second connecting seat 19, rotary driver 191, first clamping block 182, first clamping seat 183, first clamping slot 184, second clamping block 192, second clamping seat 193, second clamping slot 194, transmission rack 195, transmission gear 196, locking push rod 197, lock hole 198, locking member 199, positioning lock slot 190, hanging push rod 185, hanging hole 186, docking positioning device 21, identification positioning member 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 slot 43, sealing slot 44. DETAILED DESCRIPTION

[0036] The following describes specific embodiments of the present invention with reference to the accompanying drawings. It should be noted that, in the description of the present invention, the terms "upper," "lower," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0037] Example 1:

[0038] See also Figures 1 to 13The water pipe retracting and releasing device of the present invention comprises a reel-up frame, a water inlet pipe, a water outlet pipe, and a telescopic mechanism; the reel-up frame is provided with a reel-up shaft located inside and a reel-up driving device that drives the reel-up shaft to operate, the inner side of the reel-up shaft is provided with a avoidance cavity with an opening at one end along the axial direction, and the outer side of the reel-up shaft is provided with a water through hole connected to the avoidance cavity; the water inlet pipe is wrapped around the outer circumference of the reel-up shaft, one end is connected to the water through hole, and the other end is provided with a water inlet joint, and the water inlet joint is provided with a docking hole with an outer end opening and a conical shape, and the reeling driving device realizes reeling or releasing the water inlet pipe by driving the reel-up shaft to rotate forward and reverse; one end of the water outlet pipe is placed in the avoidance cavity and is connected to the water inlet pipe through the water through hole, and the other end is provided with a water outlet nozzle, which is conical and adapted to the docking hole, and the water outlet nozzle and the water inlet joint are respectively located on both sides of the reel-up shaft along the radial direction; the telescopic mechanism is used to The supporting water outlet is connected to the winding frame, including a first push rod, a guide mechanism and a movable frame. The water outlet is rotatably arranged on the movable frame, and the movable frame is movably arranged on the winding frame through the guide mechanism. The first push rod is arranged on the winding frame, and the movable rod of the first push rod is transmission-connected to the movable frame; the rotation-driven docking structure includes a first connecting seat arranged on the outside of the water inlet joint, a second connecting seat arranged on the outside of the water outlet and a rotating 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 relatively and dock with the water inlet joint of an adjacent water pipe retracting device, and after the water outlet and the water inlet joint are docked in place, the water outlet is driven to rotate relatively by the rotary driver, so that the second connecting seat is rotationally connected to the first connecting seat, thereby realizing the relative connection between the water outlet and the water outlet joint.

[0039] Compared with the prior art, the water pipe retracting and releasing device of the present invention is used for use with drones. The reeling drive device drives the reeling shaft to rotate forward and reverse to achieve rapid reeling or releasing of the water inlet pipe, so that the water inlet pipe can be connected to the fire hose on the ground through the water inlet joint. The water pipe retracting and releasing device is carried to a high altitude by the drone and water is sprayed through the water outlet, so that firefighting operations can be carried out on the mountain or at high altitudes. The efficient docking and continuous water supply between the drone and the ground water source are achieved, which significantly improves the scope and efficiency of firefighting. The telescopic mechanism and the rotary drive docking structure ensure the flexible docking and stable connection between the water pipe retracting and releasing devices of the multi-stage drones, thereby supporting high-flow high-altitude firefighting operations, effectively solving the problem of insufficient water supply capacity of traditional firefighting drones, reducing personnel safety risks, and being suitable for higher-altitude and long-distance mountain fire fighting scenarios. Firefighters do not need to operate at close range. The drone can be remotely controlled, reducing the risks of fire spread, smoke poisoning, etc., and has good reliability.

[0040] See also Figures 1 to 8, in one embodiment, the second connecting seat is rotatably connected to the first connecting seat through a rotating connection structure, and the rotating connection structure includes a first clamping block and a first clamping seat arranged circumferentially on the first connecting seat, and a second clamping block and a second clamping seat arranged circumferentially on the second connecting seat, one end of the first clamping seat that rotates relatively is provided with a first clamping groove with an opening, and one end of the second clamping seat that rotates relatively is provided with a second clamping groove with an opening, the first clamping block and the first clamping seat are respectively provided with at least one on the first connecting seat, and the second clamping block and the second clamping seat are respectively provided with at least one on the second connecting seat, for example, the first clamping block and the first clamping seat are respectively provided with two and the first clamping block and the first clamping seat are alternately arranged, and the second clamping block and the second clamping seat are respectively provided with at least one on the second connecting seat, for example There are two second blocks and two second sockets respectively, and the second blocks and the second sockets are arranged alternately; when the rotary driver drives the water outlet to rotate relatively, the first block is relatively rotated and clamped into the second clamping groove to realize clamping with the second clamping seat, and the second block is relatively rotated and clamped into the first clamping groove to realize clamping with the first clamping seat; through such arrangement, by respectively arranging mutually matching blocks and clamping grooves on the first connecting seat, when the water outlet is docked with the water inlet joint, the rotary driver can drive the first block and the second block to respectively clamp into the corresponding clamping grooves, realizing fast and stable rotation locking, ensuring 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 and extension devices, and being suitable for high-altitude and large-flow fire extinguishing operations.

[0041] See also Figures 1 to 10 In one embodiment, a transmission rack arranged in an arc shape is provided on the outer periphery of the second connecting seat, and a transmission gear meshing with the transmission rack is provided at the output end of the rotary driver; through such an 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.

[0042] See also Figures 1 to 10 When the second connecting seat is rotated into place, the locking mechanism is inserted into the positioning lock groove and the lock hole after the locking push rod is rotated into place, thereby realizing mechanical hard locking, effectively preventing the water pipe connection from being accidentally loosened due to water pressure shock or vibration, further enhancing the stability and safety of the docking of the multi-stage water pipe retraction and deployment device, and ensuring the reliability of continuous high-pressure water supply during high-altitude fire fighting operations.

[0043] See also Figures 1 to 10 When the water pipe is retracted and the water outlet is connected to the water outlet port, the water outlet port is connected to the water outlet port of the water pipe retracting device by the hooking hole, and the hooking hole is opened when the water outlet port is in the water outlet port.

[0044] See also Figures 1 to 10 In one embodiment, the movable frame is equipped with a docking positioning device, and the winding frame is located on one side of the water inlet joint and is correspondingly provided with an identification positioning piece, and the docking positioning device is used to identify the identification positioning piece of the adjacent water pipe retracting and releasing device and enable the telescopic mechanism to drive the water outlet nozzle to extend relatively and dock with the water inlet joint of the adjacent water pipe retracting and releasing device; the identification positioning piece and the hanging push rod are arranged in the same vertical direction; through such an arrangement, the cooperation between the identification positioning piece and the docking positioning device can automatically identify and accurately guide the docking position of the water outlet nozzle and the adjacent water inlet joint, and at the same time, combined with the vertical positioning design of the hanging push rod, it ensures that the docking process is fast and accurate, reduces manual intervention, and improves the efficiency and reliability of the automated docking of the multi-stage water pipe retracting and releasing device in high-altitude fire fighting operations.

[0045] See also Figures 1 to 10 In one embodiment, 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.

[0046] See also Figures 1 to 10 In one embodiment, the guide mechanism is provided with two groups, respectively located on both sides of the first push rod, the guide mechanism includes a first guide sleeve provided on the winding frame and a first guide rod provided on the movable frame, and the first guide rod is movably sleeved in the first guide sleeve; through such an arrangement, two groups of symmetrically arranged guide mechanisms are used to ensure that the water outlet nozzle is stably guided during the extension and retraction process, effectively preventing the movable frame from deflecting or getting stuck, thereby improving the water spray positioning accuracy and the reliability of the device, and adapting to the complex working conditions of high-altitude fire fighting.

[0047] See also Figures 1 to 10In one embodiment, the winding frame includes two side guards arranged opposite to each other and a winding shaft arranged between the two side guards, and the two side guards on both sides of the winding shaft are connected by connecting rods, and a socket seat is provided on the inner side of the side guard. Both ends of the winding shaft are provided with socket parts that can rotatably socket with the socket seat, and the socket parts are socketed with the corresponding socket seats; through such an arrangement, through the combined design of the side guards, the connecting rod and the socket seat, the winding shaft can be stably supported and rotated smoothly, which not only ensures the reliability of the water inlet pipe retraction and release, but also facilitates disassembly and maintenance. The overall structure is compact and has high strength, which meets the lightweight and seismic resistance requirements when the drone is carried.

[0048] See also Figures 1 to 10 In one embodiment, the water hole is arranged at one end of the reel, and the water inlet joint is arranged near the other end of the reel; it also includes a reeling guide device, which is used to make the water inlet pipe reel in a spiral manner on the reel when the reel reels the water inlet pipe; the reeling guide device includes a guide mechanism, a reeling guide seat and a transverse driving mechanism arranged on the reel frame, the reeling guide seat is slidably connected to the guide mechanism, the reeling guide seat is provided with a reeling guide hole, and the water inlet pipe is close to the water inlet joint. One side is placed in the winding guide hole, and the transverse driving mechanism is used to drive the winding guide seat to slide along the guide mechanism, so that when the winding shaft winds up the water inlet pipe, the water inlet pipe is wound on the winding shaft in a spiral manner; through such an arrangement, by optimizing the symmetrical layout of the water inlet joint and the water outlet nozzle, the offset design of the water 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 releasing process, effectively preventing the pipe from twisting and tangling, and significantly improving the water supply stability and equipment reliability of high-altitude fire fighting operations.

[0049] See also Figures 1 to 10 In one embodiment, the guide mechanism is provided with at least two groups, and the guide mechanism includes a connecting rod provided on the winding frame, and the winding guide seat is slidably connected to the connecting rod; through such an arrangement, by providing at least two groups of guide mechanisms, the winding guide seat slides smoothly on the connecting rod, ensuring that the water inlet pipe is evenly stressed and neatly arranged during the winding process, effectively avoiding entanglement or deviation of the water pipe, and improving the winding efficiency and system stability.

[0050] See also Figures 1 to 10In one embodiment, the lateral driving mechanism includes a transmission screw and a screw driver provided 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 cooperates with the transmission screw thread, and the screw driver drives the transmission screw to operate to realize the relative movement of the winding guide seat along the connecting rod; through such an arrangement, the lateral displacement of the winding guide seat is accurately controlled by the screw transmission mechanism, so as to realize the uniform spiral arrangement of the water inlet pipe on the winding shaft, effectively preventing the water pipe from stacking or misalignment, ensuring the smooth and reliable winding and releasing process, and at the same time improving the degree of automation and the efficiency of fire extinguishing operations.

[0051] See also Figures 1 to 10 In one embodiment, the water outlet pipe includes a water receiving pipe, an external pipe and a water outlet hose connected in sequence, the water receiving pipe is placed in the avoidance cavity and one end of it is connected to the water inlet pipe through a water hole, the external pipe is located on the outside of the winding rack and is sealed and rotatably connected with the other end of the water receiving pipe through a socket joint structure, the other end of the external pipe is placed on the inside of the winding rack and is connected to one end of the water outlet hose, and the water outlet nozzle is provided at the other end of the water outlet hose; the external pipe is equipped with a booster pump and a drainage solenoid valve for emptying the liquid inside it; through such an arrangement, by setting the water outlet pipe as the water receiving pipe, the external pipe and the water outlet hose, combined with the socket joint structure, the sealed connection of the water outlet pipe as the winding shaft rotates is achieved, and at the same time, the drainage solenoid valve can quickly empty the residual liquid, so that the winding shaft can quickly complete the winding of the water outlet pipe.

[0052] See also Figure 9 and Figure 10In one embodiment, the socket joint structure 4 includes a rotating seat 41 provided on the outer periphery of the other end of the water receiving pipe 132 and a connecting seat 42 provided on the outer periphery of one end of the external pipe 133. The rotating seat 41 is provided with a plug-in groove 43 with an outer opening. The fixed seat 42 can be axially movably placed in the plug-in groove 43. The bottom wall of the plug-in groove 43 is located on the outer periphery of the opening of the other end of the water receiving pipe 132 and is provided with a sealing groove 44. A sealing ring (not shown in the figure) is provided in the sealing groove 44. The axial driver (not shown in the figure) is used to drive the fixed seat 42 to move axially along the plug-in groove 43. The axial driver is used to drive the fixed seat 42 and the rotating seat 41 to relatively engage with each other to form a sealed fit or drive The fixed seat 42 and the rotating seat 41 are relatively separated. By such an arrangement, when the winding drive device 15 drives the winding shaft 14 to reel in or release the water inlet pipe 12, the axial drive drives the fixed seat 42 and the rotating seat 41 to be relatively separated, that is, controls the separation between the water receiving pipe 132 and the external pipe 133, ensuring that the winding shaft 14 can normally reel in or release the water inlet pipe 12. After the winding drive device 15 completes the release of the water inlet pipe 12, the axial drive drives the fixed seat 42 and the rotating seat 41 to be spliced ​​together to form a sealed fit, that is, controls the connection between the water receiving pipe 132 and the external pipe 133, ensuring that water flows from the water receiving pipe 132 to the external pipe 133. The axial drive is, for example, a push rod or a mechanical mechanism for driving the relative movement of the fixed seat 42.

[0053] Example 2:

[0054] See also Figures 1 to 11 The main purpose of this embodiment is to provide a drone using the water pipe retracting and deploying device of embodiment 1, wherein the drone includes a flying body and the water pipe retracting and deploying device provided on the flying body.

[0055] Compared with the prior art, the drone of the present invention has a reeling drive device that drives the reeling shaft to rotate forward and reverse to achieve rapid reeling or releasing of the water inlet pipe, so that the water inlet pipe can be connected to the fire hose on the ground through the water inlet joint. The water pipe reeling device is carried to a high altitude by the drone and water is sprayed through the water outlet, so that firefighting operations can be carried out on the mountain or at high altitudes. The drone and the ground water source are efficiently docked and the water source is continuously delivered, which significantly improves the scope and efficiency of firefighting. The telescopic mechanism and the rotary drive docking structure ensure the flexible docking and stable connection between the water pipe reeling devices of the multi-stage drones, thereby supporting high-flow high-altitude firefighting operations, effectively solving the problem of insufficient water source delivery capacity of traditional firefighting drones, reducing personnel safety risks, and being suitable for higher-altitude and long-distance mountain fire fighting scenarios. Firefighters do not need to operate at close range and risk, and the drone can be remotely controlled, reducing the risks of fire spread, smoke poisoning, etc., and having good reliability.

[0056] See also Figures 1 to 11In one embodiment, the water pipe retracting and extending device is arranged on the inner side of the aircraft body, and the aircraft body is provided with a water inlet avoidance port corresponding to the water inlet joint and a water outlet avoidance port corresponding to the water outlet nozzle; the aircraft body is provided with a spirit level and a plurality of telescopic support rods arranged on the lower side, and the plurality of telescopic support rods are in contact with the ground in their extended state to support the aircraft body on the ground. Through such an arrangement, the aircraft body can control the different extension strokes of each telescopic support rod according to flat ground, hillside or different undulating terrain, so that the aircraft body is stably supported on the slope, and realizes coordinated operation with the ground fire hose to extinguish forest fires or fires at a longer distance, and firefighters do not need to perform firefighting operations at close range.

[0057] Example 3:

[0058] See also Figures 1 to 13 The main purpose of this embodiment is to provide a drone water channel connection method using the drone of embodiment 2, including several drones, and the water channel connection method includes the following steps: several drones fly to a position between the fire location and the water source location and arrange themselves, and make the water outlet of the water pipe retracting device face the fire location, the telescopic mechanism of the water pipe retracting device drives the water outlet to extend relatively and dock with the water inlet joint of the adjacent drone water pipe retracting device, after the water outlet and the water inlet joint are docked in place, the rotary driver drives the water outlet to rotate relatively, and the second connecting seat of the water outlet is rotatably connected to the first connecting seat of the water inlet joint, so that the water outlet is connected to the water source. The water outlet joints are relatively connected; the reeling drive device of each drone's water pipe retracting device drives the reeling shaft to rotate relative to release the usable length of the water inlet pipe, while each drone approaches the fire location and the water source location respectively, so that the distance between the drones is relatively increased and adapted to the extended length of the water inlet pipe; each drone maintains a flying state or is supported and stabilized on the ground by a telescopic support rod; the water inlet joint of the water pipe retracting device of the drone close to the water source location is connected to the ground fire hose or the water source of the fire truck and the water source is turned on, so that the water outlet nozzle of the water pipe retracting device of the drone close to the fire location sprays fire water to extinguish the fire location.

[0059] Compared with the prior art, the drone water channel splicing method of the present invention, the winding drive device drives the winding shaft to rotate forward and reverse to realize the rapid reeling or releasing of the water inlet pipe, and the water channel splicing can be realized between the water pipe retracting and releasing devices of multiple drones, so that the ground water source can be transported to high altitude or long-distance fire scenes. Multiple drones realize fast and reliable water pipe connection through the telescopic docking mechanism and the rotary locking device, forming a stable high-altitude water transmission channel, so that the fire fighting operation height can reach hundreds of meters and the distance can be extended to the kilometer level. It completely breaks through the height and range limitations of traditional fire ladders and helicopters, supports large-flow continuous water supply, can cope with full-facade fires in high-rise buildings, and solve the problem of remote fire fighting in complex terrains such as mountains, and also solves the problem of insufficient water source transportation capacity of traditional fire-fighting drones, reduces personnel safety risks, and is suitable for higher-altitude and long-distance mountain fire fighting scenarios. Firefighters do not need to operate at close range. The drones can be remotely controlled to reduce the risks of fire spread, smoke poisoning, etc., and have good reliability in use.

[0060] The specific structure of the UAV waterway splicing method of this embodiment is implemented through the UAV structure of the second embodiment, and also has the structure and function of the UAV of the second embodiment.

[0061] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A water pipe retracting and extending device, characterized in that: include: The winding frame is provided with a winding shaft located inside and a winding drive device for driving the winding shaft to operate. The inner side of the winding shaft is provided with an avoidance cavity with one end open along the axial direction, and the outer side of the winding shaft is provided with a water hole connected to the avoidance cavity; The water inlet pipe is wound around the outer circumference of the reel, one end of which is connected to the water hole, and the other end is provided with a water inlet joint, which is provided with a conical docking hole with an outer end opening. The reeling drive device drives the reel to rotate forward and reverse to realize the reeling or releasing of the water inlet pipe; The water outlet pipe has one end placed in the avoidance cavity and connected to the water inlet pipe through the water hole, and the other end is provided with a water outlet nozzle, which is conical in shape and fits into the docking hole. The water outlet nozzle and the water inlet joint are respectively located on both sides of the reel in the radial direction; The telescopic mechanism is used to support the water outlet nozzle and is connected to the winding frame, comprising a first push rod and a movable frame, the water outlet nozzle is rotatably arranged on the movable frame, the movable frame is guided and movably arranged on the winding frame, the first push rod is arranged on the winding frame, and the movable rod of the first push rod is transmission-connected to the movable frame; The rotary drive docking structure comprises a first connecting seat provided on the outside of the water inlet joint, a second connecting seat provided on the outside of the water outlet nozzle, and a rotary driver for driving the second connecting seat to rotate relative to the water outlet; The telescopic mechanism is used to drive the water outlet to extend relatively and dock with the water inlet joint of the adjacent water pipe retraction device. After the water outlet and the water inlet joint are docked in place, the water outlet is driven to rotate relatively by the rotary drive to make the second connecting seat and the first connecting seat rotationally connected, thereby realizing the relative connection between the water outlet and the water outlet joint.

2. The water pipe retracting and extending device according to claim 1, characterized in that: The second connecting seat is rotatably connected to the first connecting seat through a rotating connection structure, and the rotating connection structure includes a first clamping block and a first clamping seat arranged circumferentially on the first connecting seat, and a second clamping block and a second clamping seat arranged circumferentially on the second connecting seat, an end of the first clamping seat that rotates relatively is provided with an open first clamping groove, and an end of the second clamping seat that rotates relatively is provided with an open second clamping groove, the first clamping block and the first clamping seat are respectively provided with at least one on the first connecting seat, and the second clamping block and the second clamping seat are respectively provided with at least one on the second connecting seat; When the rotary driver drives the water outlet to rotate relatively, the first clamping block is relatively rotated and clamped into the second clamping slot to be clamped with the second clamping seat, and the second clamping block is relatively rotated and clamped into the first clamping slot to be clamped with the first clamping seat; An arc-shaped transmission rack is provided on the outer periphery of the second connecting seat, and a transmission gear meshing with the transmission rack is provided at the output end of the rotary driver.

3. The water pipe retracting and extending device according to claim 1, characterized in that: The movable frame is provided with a locking push rod, a locking hole on the outer side of the first connecting seat, and a locking piece is provided on the outer side of the second connecting seat, and the locking piece is provided with an open positioning lock groove on one side along the rotation connection direction of the second connecting seat. When the rotary driver drives the water spout to rotate relatively into place, the positioning lock groove swings relative to the second connecting seat to form a relative arrangement with the locking hole, and the output rod extended by the locking push rod passes through the positioning lock groove and the lock hole in sequence to lock the water spout; A hanging push rod is provided on the side of the winding rack close to the first connecting seat, the output rod of the hanging push rod is in an extended state, the first connecting seat is provided with a hanging hole, the water inlet joint is hung on the output rod of the hanging push rod through the hanging hole, and when the telescopic mechanism drives the water outlet to extend relatively to dock with the water inlet joint of the adjacent water pipe retracting device, the output rod of the hanging push rod retracts and disengages from the hanging hole.

4. The water pipe retracting and extending device according to claim 3, characterized in that: The movable frame is equipped with a docking positioning device, and the winding frame is located on one side of the water inlet joint and is correspondingly provided with an identification positioning piece. The docking positioning device is used to identify the identification positioning piece of the adjacent water pipe retracting device and enable the telescopic mechanism to drive the water outlet to extend relatively and dock with the water inlet joint of the adjacent water pipe retracting device.

5. The water pipe retracting and extending device according to claim 1, characterized in that: The water hole is provided at one end of the reel, and the water inlet connector is provided at the other end close to the reel; It also includes a winding guide device, which is used to make the water inlet pipe be wound on the winding shaft in a spiral manner when the winding shaft winds up the water inlet pipe; the winding guide device includes a guide mechanism, a winding guide seat and a transverse driving mechanism arranged 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, and the side of the water inlet pipe close to the water inlet joint is placed in the winding guide hole, and the transverse driving mechanism is used to drive the winding guide seat to slide along the guide mechanism so that the water inlet pipe is wound on the winding shaft in a spiral manner when the winding shaft winds up the water inlet pipe.

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

7. The water pipe retracting and extending device according to claim 6, characterized in that: The transverse driving mechanism includes a transmission screw and a screw driver provided 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 cooperates with the transmission screw thread. The screw driver drives the transmission screw to operate to realize the relative movement of the winding guide seat along the connecting rod.

8. The water pipe retracting and extending device according to claim 1, characterized in that: The water outlet pipe includes a water receiving pipe, an external pipe and a water outlet hose connected in sequence. The water receiving pipe is placed in the avoidance cavity and one end of the water receiving pipe is connected to the water inlet pipe through a water hole. The external pipe is located outside the winding frame and is sealed and rotatably connected to the other end of the water receiving pipe through a socket joint structure. 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 provided at the other end of the water outlet hose. The socket joint structure includes a rotating seat provided on the outer periphery of the other end of the water receiving pipe and a connecting seat provided on the outer periphery of one end of the external pipe, the rotating seat is provided with a plug-in groove with an outer opening, the fixed seat can be axially movably placed in the plug-in groove, the bottom wall of the plug-in groove is located on the outer periphery of the opening of the other end of the water receiving pipe and is provided with a sealing groove, and a sealing ring is provided in the sealing groove, and further includes an axial driver for driving the fixed seat to move axially along the plug-in groove, the axial driver is used to drive the fixed seat and the rotating seat to relatively engage with each other to form a sealed fit or to drive the fixed seat and the rotating seat to form a relative separation; The external tube is equipped with a booster pump and a drainage solenoid valve for draining the liquid inside the external tube.

9. UAV, characterized in that, It comprises a flying body and a water pipe retracting and extending device according to any one of claims 1 to 8 provided on the flying body; The water pipe retracting and extending device is arranged on the inner side of the aircraft body, and the aircraft body is provided with a water inlet avoidance port corresponding to the water inlet joint and a water outlet avoidance port corresponding to the water outlet nozzle; The flying machine body is provided with a level meter and a plurality of telescopic support rods arranged on the lower side. The plurality of telescopic support rods are in contact with the ground in an extended state to support the flying machine body on the ground.

10. UAV waterway splicing method, characterized in that: Including the drone of claim 9, the waterway splicing method comprises the following steps: Several drones are flown to a location between the fire and the water source and arranged, with the water outlets of the water pipe retractable devices facing the fire. The telescopic mechanisms of the water pipe retractable devices drive the water outlets to extend relative to each other and dock with the water inlet connectors of the water pipe retractable devices of adjacent drones. After the water outlets and the water inlet connectors are docked in place, the rotary drive drives the water outlets to rotate relative to each other, and the second connecting seat of the water outlets is rotatably connected to the first connecting seat of the water inlet connector, thereby relatively connecting the water outlets and the water outlet connector. The reeling drive device of each drone's water pipe retracting device drives the reel shaft to rotate relative to each other, releasing the usable length of the water inlet pipe. At the same time, each drone approaches the fire location and the water source location respectively, increasing the distance between the drones and adapting to the extended length of the water inlet pipe. Each drone remains in flight or is stabilized on the ground by a telescopic support rod; Connect the water inlet joint of the water pipe retracting device of the drone near the water source to the ground fire hose or the water source of the fire truck and turn on the water source, so that the water outlet nozzle of the water pipe retracting device of the drone near the fire location can spray fire water to extinguish the fire location.

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