Paraglider traction unmanned aerial vehicle

Abstract

The invention relates to a paraglider traction unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles, the paraglider traction unmanned aerial vehicle comprises an unmanned aerial vehicle frame, a take-up and pay-off assembly is mounted on the unmanned aerial vehicle frame, a traction rope is wound on the take-up and pay-off assembly, a plurality of wings are mounted on the unmanned aerial vehicle frame, an undercarriage is mounted on the lower side of the unmanned aerial vehicle frame, and a pair of axial flow fans is mounted on the undercarriage; a pay-off pipe is rotatably installed on the unmanned aerial vehicle frame, a transmission is installed at the end, connected with the unmanned aerial vehicle frame, of the pay-off pipe, the transmission is electrically connected with the wings and used for controlling the rotating speed of the wings to control the unmanned aerial vehicle to ascend and descend, a traction rope penetrates through the pay-off pipe, and a limiting piece is installed on the undercarriage and used for limiting the overturning angle of the pay-off pipe; a separable connecting piece is installed on the section, away from the take-up and pay-off assembly, of the traction rope. The paraglider is dragged through the unmanned aerial vehicle, so that the paraglider can take off on the flat ground and is not limited by the geographical environment.

Description

Technical Field

[0001] The present application relates to the technical field of drones, and in particular to a paraglider towing drone. Background Art

[0002] With the improvement of people's living standards, paragliding activities can give people the feeling of flying, and more and more consumers will experience paragliding as an entertainment project. Traditional paragliding sports are highly dependent on an obstacle-free and windward hillside for takeoff. Without an "obstacle-free and windward hillside", it is impossible to experience the joy of paragliding. Summary of the Invention

[0003] The purpose of this application is to provide a paraglider towing drone and a method of use to solve the technical problem that "the beams and columns are too long and traditional engraving equipment cannot engrave them."

[0004] The present application provides a paraglider towing drone, including a drone frame, a retractable line assembly installed on the drone frame, a towing rope wound on the retractable line assembly, a plurality of wings installed on the drone frame, a landing gear installed on the lower side of the drone frame, a pair of axial flow fans installed on the landing gear, a pay-off tube rotatably installed on the drone frame, the towing rope passes through the pay-off tube, a transmission is installed at one end of the pay-off tube connected to the drone frame, the transmission is electrically connected to the wing, the transmission is used to control the rotation speed of the wing to control the rise and fall of the drone, a detachable connector is installed on a section of the towing rope away from the retractable line assembly, the detachable connector includes a safety belt worn by the flight crew, a carabiner installed on the safety belt, and a locking assembly is installed on the towing rope; the locking assembly cooperates with the carabiner to realize the separation and connection of the safety belt and the towing rope.

[0005] Optionally, the wire-paying tube includes an inner tube, an outer tube is sleeved on the inner tube, the inner tube is slidably connected to the outer tube, a friction part is installed inside the inner tube, the friction part is sleeved on the traction rope, and the traction rope controls the extension and shortening of the wire-paying tube; the wire-paying tube is used to prevent the traction rope from contacting the wing; a limiting slip ring is installed at the end of the inner tube close to the outer tube, and an anti-slip ring is installed at the end of the outer tube away from the unmanned aerial vehicle frame, and a limiting spring is sleeved on the inner tube, and the limiting spring is located between the limiting slip ring and the anti-slip ring.

[0006] Optionally, a limit member is installed on the landing gear, and the limit member is used to limit the flipping angle of the wire tube.

[0007] Optionally, a swing traction motor is installed on the unmanned aerial vehicle frame, and the swing traction motor is used to control the pay-off tube to swing up and down in the limit piece to control the paraglider to rise.

[0008] Optionally, an adjustable telescopic rod is installed on the landing gear, and the adjustable telescopic rod is used to adjust the blowing direction of the axial flow fan; the telescopic end of the adjustable telescopic rod is rotatably installed on the axial flow fan, and the adjustable telescopic rod is rotatably installed on the landing gear; the axial flow fans are fixed together side by side, and the adjustable telescopic rod is installed on the upper and lower sides of the axial flow fan in a symmetrical structure; the adjustable telescopic rod is hinged to the landing gear at one end away from the axial flow fan; the adjustable telescopic rod is used to control the up and down flipping of the axial flow fan.

[0009] Optionally, the limit member includes a lower limit rod fixed laterally on the lower side of the landing gear, and an upper limit rod fixed laterally on the landing gear, the lower limit rod and the upper limit rod are parallel to each other, a pair of tilt limit rods are fixed on the lower limit rod and the upper limit rod, and the wire release tube is arranged between the tilt limit rods.

[0010] Optionally, a control center is installed on the drone frame, a gyroscope is installed on the drone frame, and a camera is installed on the side of the drone frame close to the axial flow fan. The control center includes a storage module, a data processing module, and a radio module. The gyroscope, transmission, control telescopic rod, swing traction motor, wing and axial flow fan are all electrically connected to the data processing module.

[0011] Optionally, the locking assembly is detachably connected to the carabiner; the locking assembly includes a locking base mounted on the traction rope, a battery is mounted on the locking base, an electric telescopic part is mounted on the locking base, a rack is mounted on the electric telescopic part, a pair of gears are rotatably mounted on the locking base, the gears are located on both sides of the rack, the gears are meshed with the rack, a first arc rod and a second arc rod are fixedly mounted on the gears, an arc sleeve for inserting the first arc rod is mounted at the end of the second arc rod, and the first arc rod, the second arc rod and the arc sleeve are connected to form a closed annular structure.

[0012] Optionally, a wireless control switch is installed on the locking base, and a distance control switch is installed on the locking base. The wireless control switch is connected to the control center via radio, and the wireless control switch controls the movement of the electric telescopic part; the distance control switch is used to measure the distance between the flight crew and the ground and control the movement of the electric telescopic part.

[0013] Optionally, the wire reel assembly includes a support frame fixed to the unmanned aerial vehicle frame, a wire winding shaft is rotatably mounted on the support frame, a wire winding disc is fixed on the wire winding shaft, a transmission wheel is fixed on the end of the wire winding shaft, a wire winding motor is installed on the support frame, and the winding motor is used to drive the wire winding disc to rotate; a wire organizer is installed on the support frame, and the wire organizer includes a wire organizing plate installed on the support frame, a wire organizing shaft is rotatably mounted on the wire organizing plate, a pair of limit plates are installed on the wire organizing shaft, a two-way threaded rod is installed between the limit plates, a direction-changing sleeve is installed on the two-way threaded rod, and the direction-changing sleeve A changing piece is installed on the changing sleeve, and the changing piece cooperates with the bidirectional threaded rod and the limit plate to control the changing sleeve to move in different directions on the bidirectional threaded rod; the changing sleeve is installed with a wire limiting ring; the traction rope passes through the wire limiting ring; a driven wheel is installed on the cable management shaft, and the driven wheel is connected to the transmission wheel through a transmission belt; the changing piece rotates the changing shaft installed on the changing sleeve, and the changing shaft is fixed with a changing protrusion near one end of the bidirectional threaded rod, and the changing shaft is fixed with a changing paddle away from the bidirectional threaded rod; the changing paddle cooperates with the limit plate.

[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. While the device is in operation, the detachable connector is worn on the paraglider operator. The drone takes off, pulling the paraglider and the operator forward at an angle. The paraglider moves upward under the influence of the airflow, and the combined force of the paraglider and the drone causes the operator and the operator to move upward. Under the continuous traction of the drone, the paraglider, the operator, and the operator continue to rise. This allows takeoff to be completed without relying on an obstacle-free, windward slope, completely breaking free from terrain restrictions: a true flat-ground takeoff is achieved, expanding paragliding to vast plains, deserts, beaches, urban suburbs, and other non-mountainous areas, revolutionizing the accessibility of paragliding. 2. Greatly reduce dependence on weather conditions: Active traction creates takeoff conditions, significantly relaxing the stringent requirements for natural wind direction and wind speed, effectively extending the number of flight days and improving site utilization.

[0015] 3. A pair of axial flow fans are installed on the landing gear on the lower side of the drone frame. The axial flow fans provide lateral traction, and the axial flow fans and wings generate a combined force, which makes the drone have greater upward pulling force, solving the problem of insufficient upward traction of traditional drones. 4. Enhanced takeoff safety: A transmission is installed at the end where the pay-off tube is connected to the drone frame. The transmission is electrically connected to the wing. The transmission is used to control the wing rotation speed to control the drone's ascent and descent, so that the height of the drone and the paraglider is always higher than the paraglider during takeoff, thereby enhancing takeoff safety. During the takeoff process, the paraglider automatically controls the drone to rise as the altitude changes, thereby reducing manual control, simplifying the takeoff process, and allowing the pilot to focus more on the flight itself.

[0016] 5. The detachable connector can quickly separate the worker from the traction rope, ensuring timely and reliable separation under predetermined conditions or in emergency situations, minimizing the risk of separation accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 This is a side structural diagram of an embodiment of the present application; Figure 3 Schematic diagram of the extended cross-sectional structure of the pay-off tube according to an embodiment of the present application; Figure 4 This is a schematic diagram of the installation structure of the pay-off tube, the transmission, and the swing traction motor according to an embodiment of the present application; Figure 5 This is a schematic diagram of the installation structure of the axial flow fan according to the embodiment of the present application; Figure 6 This is a schematic diagram of the structural principle of the control center in an embodiment of the present application; Figure 7 This is a schematic diagram of the structure of a detachable connector according to an embodiment of the present application; Figure 8 This is a schematic diagram of the exploded structure of the detachable connector according to an embodiment of the present application; Figure 9 This is a schematic structural diagram of the locking assembly according to an embodiment of the present application; Figure 10 This is a schematic diagram of the structure of the retractable wire assembly according to an embodiment of the present application; Figure 11 This is an embodiment of the present application Figure 10 A in the middle is an enlarged schematic diagram; Figure 12 This is a schematic diagram of the structure of the direction-changing member according to an embodiment of the present application; In the figure, 1. UAV frame; 11. Swing traction motor; 12. Gyroscope; 13. Camera; 2. Wire reel assembly; 20. Support frame; 21. Towing rope; 22. Winding reel; 23. Wire organizer; 230. Winding motor; 231. Wire management plate; 232. Wire management shaft; 233. Limit plate; 234. Bidirectional threaded rod; 235. Direction-changing sleeve; 236. Direction-changing member; 2361. Direction-changing shaft; 2362. Direction-changing protrusion; 2363. Direction-changing paddle; 237. Wire limiting ring; 238. Driven rotor; 24. Winding shaft; 25. Drive rotor; 26. Drive belt; 3. Wing; 4. Landing gear; 41. Adjustable telescopic rod; 5. Axial fan; 6. Wire release Tube; 61. Inner tube; 62. Outer tube; 63. Friction piece; 64. Limiting slip ring; 65. Anti-slip ring; 66. Limiting spring; 7. Transmission; 8. Limiting piece; 81. Lower limiting rod; 82. Upper limiting rod; 83. Tilt limiting rod; 9. Separable connector; 91. Safety belt; 92. Mountaineering buckle; 93. Locking assembly; 94. Locking base; 941. Wireless control switch; 942. Distance control switch; 95. Battery; 951. Electric telescopic piece; 952. Rack; 96. Gear; 97. First arc rod; 98. Second arc rod; 99. Arc sleeve; 10. Control center; 101. Storage module; 102. Data processing module; 103. Radio module. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1 -Attached Figure 11 , further details of this application are given.

[0019] The first lifting control embodiment: Reference Figure 1 , Figure 2 A paraglider towing drone includes a drone frame 1, a retractable line assembly 2 is installed on the drone frame 1, a towing rope 21 is wound around the retractable line assembly 2, a plurality of wings 3 are installed on the drone frame 1, a landing gear 4 is installed on the lower side of the drone frame 1, a pair of axial flow fans 5 are installed on the landing gear 4, a pay-off tube 6 is rotatably installed on the drone frame 1, the towing rope 21 passes through the pay-off tube 6, a transmission 7 is installed at one end of the pay-off tube 6 connected to the drone frame 1, the transmission 7 is electrically connected to the wing 3, and the transmission 7 is used to control the rotation speed of the wing 3 to control the rise and fall of the drone, so that the paraglider automatically controls the rise of the drone as the altitude changes during takeoff, thereby reducing manual control, simplifying the takeoff process, and allowing the pilot to focus more on the flight itself; When the drone is controlling the paraglider to ascend, the drone, crew, and paraglider form a V-shape, with the crew and user at the lowest end of the V. The combined traction of the drone and the paraglider causes the crew and user to ascend. A detachable connector 9 is mounted on the end of the traction rope 21 away from the retractable line assembly 2. The detachable connector 9 includes a safety belt 91 worn by the pilot, a carabiner 92 mounted on the safety belt 91, and a locking assembly 93 mounted on the traction rope 21. The locking assembly 93 cooperates with the carabiner 92 to achieve separation and connection between the safety belt 91 and the traction rope 21. When the paraglider tows the drone, the safety belt 91 is first put on the staff or experiencer. The drone tilts upward and flies, pulling the staff and experiencer together. The paraglider generates an upward lift under the action of the airflow. The staff and experiencer are suspended in the air under the combined force of the lift of the paraglider and the drone. The drone continues to rise, and the paraglider continues to rise under the action of the airflow. When it rises to the specified height, there is sufficient airflow in the air, and the locking component 93 separates from the carabiner 92. At this time, the staff controls the paraglider to take the experiencer to experience the joy of flying in the air. During the flight, in case of emergency, the staff can manually operate the carabiner 92 to separate the safety belt 91 from the locking assembly 93, thereby improving the safety factor of the flight; During the drone's towing process, the axial fan 5 can provide lateral wind force for the drone, and the wings 3 can provide the drone with vertical upward force. Under the action of the lateral wind force and the vertical lift, an upward force is generated. Under the towing action of the drone, the paraglider also generates an upward traction force. The traction force of the paraglider and the traction force of the drone form a combined force, which can better tow the staff upward. Under the continuous towing of the drone, the paraglider, the staff and the experiencer continue to rise, so that they can complete the takeoff without relying on the conditions of an obstacle-free and windward slope, completely breaking away from the terrain: achieving a true flat ground takeoff, expanding the paragliding sport to vast plains, deserts, beaches, urban suburbs and other mountainless areas, and revolutionizing the accessibility of paragliding. Enhanced takeoff safety: Provides stable and controllable acceleration and climb, eliminating common risks of traditional takeoffs such as falling on steep slopes, parachute collapse, and loss of control due to wind shear.

[0020] Greatly reduce weather dependence: Active traction creates takeoff conditions, significantly relaxing the stringent requirements for natural wind direction and speed, effectively extending the number of flight days and improving site utilization; Under the action of the axial flow fan 5, the drone can generate sufficient upward traction to pull the staff and experience the staff moving upward; When the aircraft reaches a specified height, the detachable connector can quickly separate the operator from the traction rope 21, ensuring timely and reliable separation under predetermined conditions or in emergency situations, thereby minimizing the risk of separation accidents.

[0021] "A transmission 7 is installed at the end where the pay-off tube 6 is connected to the drone frame 1. The transmission 7 is electrically connected to the wing 3. The transmission 7 is used to control the rotation speed of the wing 3 to control the rise and fall of the drone." When the paraglider rises to the moving height and there is enough airflow in the sky to make the paraglider rise, the pay-off tube 6 will flip upward. At this time, under the action of the transmission 7, the wing 3 has a higher rotation speed, which makes the drone move upward, allowing the paraglider, staff and experiencers to reach the specified height faster.

[0022] Reference Figure 1 、 Figure 2 、 Figure 3 The pay-off tube 6 includes an inner tube 61, an outer tube 62 is sleeved on the inner tube 61, and the inner tube 61 and the outer tube 62 are slidably connected. A friction member 63 is installed inside the inner tube 61, and the friction member 63 is sleeved on the traction rope 21. The traction rope 21 controls the extension and shortening of the pay-off tube 6; the pay-off tube 6 is used to prevent the traction rope 21 from contacting the wing 3; when the drone takes off, the traction rope 21 pays off the line, and the inner tube 61 slides relative to the outer tube 62 under the friction force of the friction member 63 (a rubber ring or an annular structure fixed on the inner tube 61, with bristles arranged on the inside) and the traction rope 21, thereby increasing the length of the pay-off tube 6, and when the pay-off tube 6 is flipped upward, it can extend to the side of the wing 3 away from the fuselage, thereby preventing the traction rope 21 from contacting the wing 3 when the drone is lower than the height of the staff; Under special air flow weather conditions, the paraglider continues to rise. The drone can be controlled to tow the paraglider, staff and experience personnel, and fly obliquely downward to control the paraglider's flight altitude, effectively preventing the paraglider from flying too high and posing a danger to the staff and experience personnel. During this process, the drone is located obliquely below the staff, and the drone, staff and paraglider form a top-down oblique line. When the pay-off tube 6 is stretched and flipped over, it extends to the side of the wing 3 away from the fuselage, thereby preventing the towing rope 21 from contacting the wing 3.

[0023] After the paraglider rises to a certain height, the detachable connector 9 separates the traction rope 21 from the staff, and the retractable wire assembly 2 controls the retraction of the traction rope 21. The inner tube 61 is retracted in the outer tube 62 under the action of friction, thereby shortening the wire tube 6. When the traction rope 21 is completely retracted, the wire tube 6 is completely shortened and its length is less than the height of the landing gear 4. At this time, the wire tube 6 can be effectively prevented from affecting the landing of the drone.

[0024] Reference Figure 2 and Figure 3A limiting slip ring 64 is installed at one end of the inner tube 61 close to the outer tube 62, and an anti-slip ring 65 is installed at the end of the outer tube 62 away from the drone frame 1. A limiting spring 66 is sleeved on the inner tube 61, and the limiting spring 66 is located between the limiting slip ring 64 and the anti-slip ring 65. Under the action of the anti-slip ring 65 and the limiting slip ring 64, the inner tube 61 and the outer tube 62 can be effectively prevented from separating from each other; a limiting spring 66 is arranged between the limiting slip ring 64 and the anti-slip ring 65, which can increase the overlapping length of the inner tube 61 and the outer tube 62, and can effectively prevent the wire-releasing tube 6 from breaking or getting stuck.

[0025] Reference Figure 1 and Figure 4 A limit member 8 is installed on the landing gear 4, and the limit member 8 is used to limit the flipping angle of the pay-off tube 6; it can effectively prevent the pay-off tube 6 from flipping over, causing the traction rope 21 to contact the wing 3 and affect the flight of the drone.

[0026] Second lifting control embodiment: Reference Figure 1 and Figure 4 A swing traction motor 11 is installed on the drone frame 1. The swing traction motor 11 is used to control the pay-off tube 6 to swing up and down in the limiter 8. The limiter 8 controls the paraglider to rise; After the drone rises to a certain height, the swing traction motor 11 controls the pay-off tube 6 to swing up and down in the limiter 8. When the pay-off tube 6 swings downward, the pay-off assembly 2 does not pay-off the line. When the pay-off tube 6 swings upward, the pay-off assembly 2 pays off the line (like flying a kite in our daily life), which can make the paraglider quickly rise to the specified height.

[0027] Reference Figure 5, an adjustable telescopic rod 41 is installed on the landing gear 4, and the adjustable telescopic rod 41 is used to adjust the blowing direction of the axial flow fan 5; the telescopic end of the adjustable telescopic rod 41 is rotatably installed on the axial flow fan 5, and the adjustable telescopic rod 41 is rotatably installed on the landing gear 4; the axial flow fans 5 are fixed together side by side, and the adjustable telescopic rod 41 is installed on the upper and lower sides of the axial flow fan 5 in a symmetrical structure; the adjustable telescopic rod 41 is hinged to the landing gear 4 at one end away from the axial flow fan 5, and the adjustable telescopic rod 41 is used to control the up and down flipping of the axial flow fan 5; during the flight of the drone, there are two groups of adjustable telescopic rods 41, one group is installed on the upper side of the axial flow fan 5, and the other group is installed on the lower side of the axial flow fan 5, controlling the adjustable telescopic rod 4 on the upper side of the axial flow fan 5 1 is shortened, and the regulating telescopic rod 41 on the lower side of the axial flow fan 5 is extended. At this time, the axial flow fan 5 flips upward, and the regulating telescopic rod 41 on the upper side of the axial flow fan 5 is controlled to extend, and the regulating telescopic rod 41 on the lower side of the axial flow fan 5 is shortened. At this time, the axial flow fan 5 flips downward. By controlling the extension and shortening of the regulating telescopic rod 41, the inclination angle of the axial flow fan 5 can be controlled, so that the thrust generated by the wind direction of the axial flow fan 5 and the lift of the wing 3 generate a resultant force, and the direction of the resultant force is close to the direction of the pay-off tube 6, so that the traction force can be better utilized; by controlling the inclination angle of the axial flow fan 5, the direction of the resultant force between the axial flow fan 5 and the wing 3 can be made close to the direction of the pay-off tube 6, so as to better maintain the balance of the UAV and make the flight of the UAV more stable.

[0028] Reference Figure 5 The limit member 8 includes a lower limit rod 81 fixed laterally to the lower side of the landing gear 4, an upper limit rod 82 fixed laterally to the landing gear 4, the lower limit rod 81 and the upper limit rod 82 are parallel to each other, a pair of tilt limit rods 83 are fixed on the lower limit rod 81 and the upper limit rod 82, the wire tube 6 is arranged between the tilt limit rods 83, the lower limit rod 81 limits the downward turning angle of the wire tube 6, the upper limit rod 82 limits the upward turning angle of the wire tube 6, and the tilt limit rod 83 is used to limit the horizontal deviation of the wire tube 6 The pay-off tube 6 is always tilted downward under the action of the lower limit rod 81 and the upper limit rod 82, thereby effectively preventing the pay-off tube 6 from over-turning and causing the traction rope 21 to contact the wing 3; when the pay-off tube 6 is extended, the pay-off tube 6 turns upward and contacts the upper limit rod 82, and the pay-off tube 6 supports the traction rope 21, which can further prevent the traction rope 21 from contacting the wing 3. At the same time, a protective cover is installed on the wing 3, which can effectively prevent the traction rope 21 from contacting the wing 3 and affecting the flight of the drone.

[0029] Reference Figure 1 、 Figure 6A control center 10 is installed on the drone frame 1, a gyroscope 12 is installed on the drone frame 1, and a camera 13 is installed on the side of the drone frame 1 close to the axial flow fan 5. The control center 10 includes a storage module 101, a data processing module 102, and a radio module 103. The gyroscope 12, the transmission 7, the control telescopic rod 41, the swing traction motor 11, the wing 3 and the axial flow fan 5 are all electrically connected to the data processing module 102; two batteries are installed on the drone frame 1, and the batteries supply power to the wing 3, the axial flow fan 5 and the control center. There are two batteries, one is a working battery and the other is a backup battery; when the drone is flying, the gyroscope 12 senses the change of the drone's attitude and transmits the data to the data processing module 102. The data processing module 102 controls the rotation of the wing 3 according to the data of the gyroscope 12, thereby maintaining the balance of the drone; When the drone is pulling the staff, the experiencer and the paraglider up, the paraglider causes the angle of the pay-off tube 6 to deviate up and down during the ascent. Rotating shafts are fixed on both sides of the end where the pay-off tube 6 is connected to the transmission 7. The rotating shaft is rotatably connected to the drone frame 1. The pay-off tube 6 drives the rotating shaft to rotate during the flipping process. The rotating shaft controls the transmission 7 to move. The transmission 7 transmits relevant data to the data processing module 102. The data processing module 102 controls the wing 3 to generate a vertical upward force. The data processing module 102 controls the telescopic rod 41 to adjust the angle of the axial flow fan 5 so that the resultant force generated by the wing 3 and the axial flow fan 5 is in the same direction as the traction force on the pay-off tube 6, thereby maximizing the traction force and facilitating the maintenance of the balance of the drone. In order to enable the paraglider to reach the specified height faster, the angle of the pay-off tube 6 is driven to swing up and down by the swing traction motor 11, and the data processing module 102 is used to control the pay-off assembly 2 to pay out the line. The pay-off is stopped when the pay-off tube 6 swings down, and the line is paid out when the pay-off tube 6 swings up, so that the paraglider can reach the specified height faster; (the transmission 7 stops working during this process).

[0030] When the paraglider reaches the specified height, the data processing module 102 controls the movement of the detachable connector 9 through the radio module 103 (WiFi signal or electromagnetic wave signal) to separate the traction rope 21 from the staff, or sends a separation command through the remote control, which is transmitted to the data processing module 102 via radio, and then controls the movement of the detachable connector 9 through the radio module 103.

[0031] Reference Figure 7 、 Figure 8 、 Figure 9, the locking assembly 93 is detachably connected to the carabiner 92; the locking assembly 93 includes a locking base 94 mounted on the traction rope 21, a battery 95 is mounted on the locking base 94, an electric telescopic member 951 is mounted on the locking base 94, a rack 952 is mounted on the electric telescopic member 951, a pair of gears 96 are rotatably mounted on the locking base 94, the gears 96 are located on both sides of the rack 952, the gears 96 are meshed with the rack 952, a first arc rod 97 and a second arc rod 98 are fixedly mounted on the gears 96, and an arc sleeve 99 is mounted at the end of the second arc rod 98 for inserting the first arc rod 97, and the first arc rod 97, the second arc rod 98 and the arc sleeve 99 are connected to form a closed annular structure; The locking assembly 93 is connected to the safety belt 91 via a carabiner 92. The pilot can separate from the locking assembly 93 by controlling the opening and closing of the carabiner 92, thereby separating the pilot from the traction rope. When the drone starts to take off, the electric telescopic part 951 changes from an extended state to a shortened state, the rack 952 controls the rotation of the gear 96, and the first arc rod 97 and the second arc rod 98 change from an open state to a closed state, thereby locking the locking assembly 93 on the carabiner 92. An arc sleeve 99 is installed at the end of the second arc rod 98 for inserting the first arc rod 97. After the first arc rod 97, the second arc rod 98 and the arc sleeve 99 are connected, they form a closed annular structure, so that the structure of the locking assembly 93 is more stable after being locked.

[0032] Reference Figure 7 、 Figure 8 、 Figure 9 A wireless control switch 941 is mounted on the locking base 94, and a distance control switch 942 is mounted on the locking base 94. The wireless control switch 941 is connected to the control center 10 via radio, and the wireless control switch 941 controls the movement of the electric telescopic member 951; the distance control switch 942 is used to measure the distance between the flight crew and the ground and control the movement of the electric telescopic member 951; When the drone reaches a specified altitude, a remote controller sends a command to the control center 10. The control center controls the electric telescopic member 951 via the wireless control switch 941, causing the electric telescopic member 951 to change from a shortened state to an extended state, thereby changing the first arc rod 97 and the second arc rod 98 from a closed state to an open state, and pulling the locking assembly 93 and the carabiner 92 apart. (The distance control switch 942 emits ultrasonic waves to measure the distance and is connected to the locking base 94 via a wire. The distance control switch 942 is always suspended on the lower side of the locking base 94.) The distance control switch 942 measures the distance between the locking base 94 and the ground. When the drone reaches above the specified altitude and the wireless control switch 941 does not send any command, the distance control switch 942 controls the electric telescopic member 951 to operate. The locking assembly 93 and the safety belt 91 are controlled in a variety of ways through the carabiner 92, the wireless control switch 941 and the distance control switch 942, thereby improving the safety factor of the flight.

[0033] Reference Figure 10 、 Figure 11 、 Figure 12 The wire retracting and unwinding assembly 2 includes a support frame 20 fixed on the unmanned aerial vehicle frame 1, a wire winding shaft 24 is rotatably installed on the support frame 20, a wire winding reel 22 is fixed on the wire winding shaft 24, a transmission wheel 25 is fixed on the end of the wire winding shaft 24, a wire winding motor 230 is installed on the support frame 20, and the wire winding motor 230 is used to drive the wire winding reel 22 to rotate; a wire organizer 23 is installed on the support frame 20, and the wire organizer 23 includes a wire organizing plate 231 installed on the support frame 20, a wire organizing shaft 232 is rotatably installed on the wire organizing plate 231, a pair of limit plates 233 are installed on the wire organizing shaft 232, a bidirectional threaded rod 234 is installed between the limit plates 233, a changing sleeve 235 is installed on the bidirectional threaded rod 234, and a changing member is installed on the changing sleeve 235 236, the direction-changing member 236 cooperates with the bidirectional threaded rod 234 and the limiting plate 233 to control the direction-changing sleeve 235 to move in different directions on the bidirectional threaded rod 234; the direction-changing sleeve 235 is installed with a wire limiting ring 237; the traction rope 21 passes through the wire limiting ring 237; a driven rotary wheel 238 is installed on the cable management shaft 232, and the driven rotary wheel 238 is connected to the transmission rotary wheel 25 through a transmission belt 26; the direction-changing member 236 rotates the direction-changing shaft 2361 installed on the direction-changing sleeve 235, and the direction-changing shaft 2361 is close to the end of the bidirectional threaded rod 234 and fixed with a direction-changing protrusion 2362, and the direction-changing shaft 2361 is away from the end of the bidirectional threaded rod 234 and fixed with a direction-changing paddle 2363; the direction-changing paddle 2363 cooperates with the limiting plate 233; During the process of reeling and releasing the wire, the traction rope 21 passes through the wire limiting ring 237, and the winding motor 230 controls the rotation of the wire management shaft 232 through the transmission wheel 25 while driving the winding shaft 24 to rotate. Under the action of the two-way threaded rod 234, the changing sleeve 235 moves, and the changing member 236 cooperates with the two-way threaded rod 234 and the limiting plate 233 to drive the changing sleeve 235 to move back and forth between the limiting plates 233, thereby controlling the traction rope 21 to be evenly wound on the winding drum 22; when the changing paddle 2363 contacts the limiting plate 233, the changing shaft 2361 rotates a certain angle to change the angle of the changing protrusion 2362, and the moving direction changes under the action of the two-way threaded rod 234.

[0034] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A paraglider towing drone, characterized by: The invention comprises an unmanned aerial vehicle frame (1), a retractable wire assembly (2) is installed on the unmanned aerial vehicle frame (1), a traction rope (21) is wound around the retractable wire assembly (2), a plurality of wings (3) are installed on the unmanned aerial vehicle frame (1), a landing gear (4) is installed on the lower side of the unmanned aerial vehicle frame (1), a pair of axial flow fans (5) are installed on the landing gear (4), a wire release tube (6) is rotatably installed on the unmanned aerial vehicle frame (1), the traction rope (21) passes through the wire release tube (6), a transmission (7) is installed at one end of the wire release tube (6) connected to the unmanned aerial vehicle frame (1), and the The transmission (7) is electrically connected to the wing (3), and the transmission (7) is used to control the rotation speed of the wing (3) to control the lifting and lowering of the UAV; a detachable connector (9) is installed at one end of the traction rope (21) away from the retractable wire assembly (2), and the detachable connector (9) includes a safety belt (91) worn by the flight crew, a carabiner (92) installed on the safety belt (91), and a locking assembly (93) installed on the traction rope (21); the locking assembly (93) cooperates with the carabiner (92) to realize the separation and connection of the safety belt (91) and the traction rope (21).

2. A paraglider towing drone according to claim 1, characterized in that: The pay-off tube (6) comprises an inner tube (61), an outer tube (62) is sleeved on the inner tube (61), the inner tube (61) and the outer tube (62) are slidably connected, a friction member (63) is installed inside the inner tube (61), the friction member (63) is sleeved on the traction rope (21), and the traction rope (21) controls the extension and shortening of the pay-off tube (6); the pay-off tube (6) is used to prevent the traction rope (21) from contacting the wing (3); a limit slip ring (64) is installed on the end of the inner tube (61) close to the outer tube (62), an anti-slip ring (65) is installed on the end of the outer tube (62) away from the unmanned aerial vehicle frame (1) (7), and a limit spring (66) is sleeved on the inner tube (61), and the limit spring (66) is located between the limit slip ring (64) and the anti-slip ring (65).

3. A paraglider towing drone according to claim 2, characterized in that: A limiting member (8) is installed on the landing gear (4), and the limiting member (8) is used to limit the turning angle of the pay-off tube (6).

4. The paraglider towing drone according to claim 3, characterized in that: A swing traction motor (11) is installed on the unmanned aerial vehicle frame (1), and the swing traction motor (11) is used to control the pay-off tube (6) to swing up and down in the limiter (8), thereby controlling the paraglider to rise.

5. The paraglider towing drone according to claim 4, characterized in that: The landing gear (4) is provided with a regulating telescopic rod (41), the regulating telescopic rod (41) being used to regulate the blowing direction of the axial flow fan (5), the telescopic end of the regulating telescopic rod (41) being rotatably mounted on the axial flow fan (5), and the regulating telescopic rod (41) being rotatably mounted on the landing gear (4); the axial flow fans (5) are fixed together side by side, and the regulating telescopic rod (41) is mounted on the upper and lower sides of the axial flow fans (5) in a symmetrical structure; the end of the regulating telescopic rod (41) away from the axial flow fan (5) is hinged to the landing gear (4); the regulating telescopic rod (41) is used to control the axial flow fan (5) to flip up and down.

6. The paraglider towing drone according to claim 5, characterized in that: The limiting member (8) comprises a lower limiting rod (81) laterally fixed to the lower side of the landing gear (4), and an upper limiting rod (82) laterally fixed to the landing gear (4), wherein the lower limiting rod (81) and the upper limiting rod (82) are parallel to each other, and a pair of tilt limiting rods (83) are fixed to the lower limiting rod (81) and the upper limiting rod (82), and the wire release tube (6) is arranged between the tilt limiting rods (83).

7. The paraglider towing drone according to claim 6, characterized in that: A control center (10) is installed on the unmanned aerial vehicle frame (1), a gyroscope (12) is installed on the unmanned aerial vehicle frame (1), and a camera (13) is installed on the side of the unmanned aerial vehicle frame (1) close to the axial flow fan (5). The control center (10) includes a storage module (101), a data processing module (102), and a radio module (103). The gyroscope (12), the transmission (7), the control telescopic rod (41), the swing traction motor (11), the wing (3), and the axial flow fan (5) are all electrically connected to the data processing module (102).

8. The paraglider towing drone according to claim 7, characterized in that: The locking assembly (93) is detachably connected to the carabiner (92); the locking assembly (93) comprises a locking base (94) mounted on the traction rope (21), a battery (95) mounted on the locking base (94), an electric telescopic member (951) mounted on the locking base (94), a rack (952) mounted on the electric telescopic member (951), a pair of gears (96) rotatably mounted on the locking base (94), the gears (96) being located on both sides of the rack (952), the gears (96) being meshed with the rack (952), a first arc rod (97) and a second arc rod (98) being fixedly mounted on the gears (96), a arc sleeve (99) for inserting the first arc rod (97) being mounted at the end of the second arc rod (98), and the first arc rod (97), the second arc rod (98) and the arc sleeve (99) being connected to form a closed annular structure.

9. The paraglider towing drone according to claim 8, characterized in that: A wireless control switch (941) is installed on the locking base (94), and a distance control switch (942) is installed on the locking base (94). The wireless control switch (941) is connected to the control center (10) via radio. The wireless control switch (941) controls the action of the electric telescopic member (951); the distance control switch (942) is used to measure the distance between the flight crew and the ground and control the action of the electric telescopic member (951).

10. The paraglider towing drone according to claim 1, characterized in that: The retractable wire assembly (2) comprises a support frame (20) fixed on the unmanned aerial vehicle frame (1), a winding shaft (24) is rotatably mounted on the support frame (20), a winding disk (22) is fixed on the winding shaft (24), a transmission wheel (25) is fixed at the end of the winding shaft (24), a winding motor (230) is mounted on the support frame (20), and the winding motor (230) is used to drive the winding disk (22) to rotate; a winding motor (230) is mounted on the support frame (20). A cable organizer (23) is provided, wherein the cable organizer (23) comprises a cable organizer plate (231) mounted on a support frame (20), a cable organizer shaft (232) being rotatably mounted on the cable organizer plate (231), a pair of limit plates (233) being mounted on the cable organizer shaft (232), a bidirectional threaded rod (234) being mounted between the limit plates (233), a direction-changing sleeve (235) being mounted on the bidirectional threaded rod (234), and a direction-changing sleeve (235) being mounted on the direction-changing sleeve (235). The direction-changing member (236) cooperates with the bidirectional threaded rod (234) and the limiting plate (233) to control the direction-changing sleeve (235) to move in different directions on the bidirectional threaded rod (234); the direction-changing sleeve (235) is installed with a wire limiting ring (237); the traction rope (21) passes through the wire limiting ring (237); a driven wheel (238) is installed on the wire management shaft (232), and the driven wheel (238) is connected to the transmission wheel (25) are connected via a transmission belt (26); the direction-changing member (236) rotates a direction-changing shaft (2361) mounted on the direction-changing sleeve (235); a direction-changing protrusion (2362) is fixed to one end of the direction-changing shaft (2361) mounted close to the bidirectional threaded rod (234); a direction-changing paddle (2363) is fixed to one end of the direction-changing shaft (2361) away from the bidirectional threaded rod (234); the direction-changing paddle (2363) cooperates with the limit plate (233).

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