An anti-tangling device for UAV cables

Abstract

The present invention discloses a cable anti-twisting device for a drone, which relates to the technical field of cable winding and unwinding. The device includes a base and a winding and unwinding mechanism. A pair of fixing plates are installed on the base, and a main shaft is connected between the pair of fixing plates. A cable drum is rotatably connected to the main shaft, and a cable body is wound around the cable drum. The winding and unwinding mechanism is installed on the main shaft and is used for releasing and recycling the cable body. An auxiliary mechanism is arranged on the base for judging the state of the cable body and assisting in the winding and unwinding of the cable body. The present invention is provided with the cooperation of the winding and unwinding mechanism and the auxiliary mechanism, which can automatically judge the state of the cable body and automatically release or recycle the cable body. When the drone flies upward or away from the device, it provides the required power for the drone to fly. When the drone returns or approaches the device in flight, it avoids the situation that the redundant cable body falls to the ground and causes dragging wear and entanglement, and plays a good role in protecting the cable body.

Description

Technical Field

[0001] The present invention relates to the technical field of cable winding and unwinding, and particularly to an anti-tangling device for UAV cables. Background Art

[0002] A tethered UAV, also known as a tethered unmanned aerial vehicle, is a special form of a multi-rotor UAV. The emergence of tethered UAVs can effectively solve the problem of UAVs in terms of energy consumption. By providing power to the aerial UAV from the ground through a cable and transmitting the signals on the UAV to the ground through an optical fiber, it has the characteristics of light weight and large transmission current density, and can effectively extend the working time of the UAV.

[0003] During the flight of a tethered UAV, due to the uncertainty of the UAV's flight path, when the takeoff distance of the UAV is increased, the cable needs to be continuously released for the UAV to fly. When the UAV approaches, the previously released cable will become redundant and too long. If not recovered in time, this part of the redundant cable will fall to the ground, resulting in cable skin abrasion, cable entanglement, etc. This will not only affect the stability of signal transmission, but in severe cases, it will also cause safety problems for the UAV. Therefore, an anti-tangling device for UAV cables is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art, and to propose an anti-tangling device for UAV cables.

[0005] An anti-tangling device for UAV cables includes a base and a winding and unwinding mechanism. A pair of fixing plates are installed on the base, a main shaft is connected between the pair of fixing plates, a cable drum is rotatably connected to the main shaft, a cable body is wound around the cable drum, the winding and unwinding mechanism is installed on the main shaft and is used for releasing and recovering the cable body, and an auxiliary mechanism is arranged on the base for judging the state of the cable body and assisting in the winding and unwinding of the cable body;

[0006] The winding and unwinding mechanism includes a first rotating sleeve and a second rotating sleeve. The first rotating sleeve and the second rotating sleeve are respectively coaxially rotatably connected to both ends of the main shaft. The first rotating sleeve and the second rotating sleeve are of a hexagonal prism structure. Sliding sleeves are sleeved on both the first rotating sleeve and the second rotating sleeve. A first friction disk is coaxially connected to the sliding sleeve on the side close to the first rotating sleeve, and a second friction disk is coaxially connected to the sliding sleeve on the side close to the second rotating sleeve. Rotating rings are coaxially rotatably connected to both sliding sleeves, connecting plates are connected to both rotating rings, a top plate is connected to the top of the pair of fixing plates, a fixed cylinder is connected to the bottom of the top plate, sliding rods are hermetically and slidably connected through both ends of the fixed cylinder, and both ends of the sliding rods are respectively connected to the tops of the two connecting plates. A power component is further arranged on the first rotating sleeve and the second rotating sleeve for driving the cable drum to rotate.

[0007] Preferably, the power assembly includes a motor, the motor is installed on the fixed plate, a rotating shaft is rotatably connected to the bottom of a pair of the fixed plates, the output shaft of the motor is coaxially connected to the rotating shaft, a small gear and a driving wheel are coaxially connected to the rotating shaft, a large gear is coaxially connected to the first rotating sleeve, the large gear meshes with the small gear, a driven wheel is coaxially connected to the second rotating sleeve, and a transmission belt is jointly sleeved on the driving wheel and the driven wheel.

[0008] Preferably, the auxiliary mechanism includes a mounting post and an air pump. The mounting post is installed on the base. An installation groove is formed at the top of the mounting post. Two guide wheels are rotatably connected in the installation groove through two pairs of connecting shafts. Annular guide grooves are formed on the two guide wheels for guiding the cable body to pass through. The air pump is installed on the top plate. The air outlet of the air pump is connected to an air supply pipe. The air supply pipe is connected to a first air pipe and a second air pipe. The ends of the first air pipe and the second air pipe far from the air supply pipe are respectively connected and communicated with the two ends of the fixed cylinder. A piston block is connected to the middle position of the sliding rod. The piston block is hermetically slidably connected to the inner wall of the fixed cylinder. The two ends of the sliding rod are sleeved with first springs. The two ends of the two first springs are connected to the piston block and the inner wall of the fixed cylinder. The two ends of the fixed cylinder are respectively connected to a first air duct and a second air duct. Solenoid valves are arranged in the first air pipe and the second air pipe. Two mounting rods are connected to the side of the mounting post away from the fixed plate. The two mounting rods are respectively located on the upper and lower sides of the installation groove. A sliding groove is formed at the end of each mounting rod away from the mounting post. A slider is slidably connected in the sliding groove. A detection rod is connected to the outer end of each slider located outside the sliding groove. A second spring is arranged in each sliding groove. The two ends of the second spring are respectively connected to the slider and the groove wall of the sliding groove. Pressure sensors are arranged on the two detection rods. The pressure sensor on the detection rod close to the upper side is electrically connected to the solenoid valve in the first air pipe. The pressure sensor on the detection rod close to the lower side is electrically connected to the solenoid valve in the second air pipe. The two pressure sensors are electrically connected to the control circuit of the air pump.

[0009] Preferably, a cavity is formed in each of the guide wheels. A plurality of air outlet holes are formed in the guide grooves of each guide wheel in an annular array and communicated with the cavity. An air guide groove is formed in one of the connecting shafts of each guide wheel and communicated with the cavity. The two air guide grooves on the two connecting shafts are connected to the first air duct.

[0010] Preferably, a cleaning ring is connected to the mounting post at the installation groove and close to the mounting rod side. An annular cavity is formed in the cleaning ring. The annular cavity of the cleaning ring is hermetically connected to the second air duct. A plurality of inclined air jet holes are formed in the inner ring surface of the cleaning ring in an annular array and communicated with the annular cavity.

[0011] Preferably, the diameter of the first air duct is smaller than that of the first gas pipeline, and the diameter of the second air duct is smaller than that of the second gas pipeline.

[0012] Preferably, the transmission ratio of the large gear to the small gear is 1:10, and the transmission ratio of the driving wheel to the driven wheel is 10:1.

[0013] Compared with the existing technologies, the advantages of the present invention are as follows:

[0014] 1. The present invention is provided with a retracting and releasing mechanism and an auxiliary mechanism that cooperate with each other, which can automatically judge the state of the cable body, automatically release or recycle the cable body. When the drone flies upward or away from the device, it provides the required power for the drone to fly. When the drone returns or approaches the device in flight, it avoids the situation that the redundant cable body falls to the ground and causes dragging wear and entanglement, and plays a good role in protecting the cable body.

[0015] 2. When the present invention releases the cable body, air is input into the cavity through the first air duct and the air guide groove, and then ejected through a plurality of air outlet holes to blow air into the gap between the guide wheel and the cable body, reducing the friction force on the cable body and the pulling force of the drone on the cable body. On the one hand, it prevents the separation of the drone from the cable body due to excessive pulling force, and on the other hand, the reduction of the pulling force can improve the service life of the cable body.

[0016] 3. When the present invention recycles the cable body, air is sent into the annular cavity of the cleaning ring through the second air duct, and then ejected through a plurality of air jet holes to blow the surface of the recycled cable body at an inclined angle, effectively removing impurities such as dust adhered to the surface of the cable body during use, and ensuring the cleanliness of the recycled cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention.

[0018] Figure 2 is a schematic structural diagram of the retracting and releasing mechanism part of the present invention.

[0019] Figure 3 is a structural sectional view of the fixed cylinder part of the present invention.

[0020] Figure 4 is a schematic structural diagram of the auxiliary mechanism part of the present invention.

[0021] Figure 5 is a structural sectional view of the auxiliary mechanism part of the present invention.

[0022] Figure 6 is Figure 5 the enlarged schematic view at A in

[0023] Figure 7This is a structural sectional view of the guide wheel in the present invention.

[0024] In the figure: 1 base, 11 fixing plate, 12 main shaft, 13 cable drum, 14 cable body, 15 top plate, 2 winding and unwinding mechanism, 21 motor, 22 first rotating sleeve, 221 first friction disk, 222 large gear, 223 small gear, 23 second rotating sleeve, 231 second friction disk, 232 driving wheel, 233 driven wheel, 234 transmission belt, 24 sliding sleeve, 241 rotating ring, 25 fixed cylinder, 251 sliding rod, 252 connecting plate, 26 rotating shaft, 3 auxiliary mechanism, 31 mounting post, 311 mounting groove, 32 guide wheel, 321 connecting shaft, 322 guide groove, 323 cavity, 324 air outlet hole, 325 air guide groove, 33 air pump, 34 air supply pipe, 341 first air delivery pipe, 342 second air delivery pipe, 35 piston block, 351 first spring, 36 first air guide pipe, 37 second air guide pipe, 38 mounting rod, 381 chute, 382 slider, 383 detection rod, 384 second spring, 39 cleaning ring, 391 annular cavity, 392 air spraying hole. Detailed implementation manners

[0025] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0026] Refer to Figure 1-7 As shown, a cable anti-tangling device for a drone includes a base 1 and a winding and unwinding mechanism 2. A pair of fixing plates 11 are installed on the base 1. A main shaft 12 is connected between the pair of fixing plates 11. A cable drum 13 is rotatably connected to the main shaft 12. A cable body 14 is wound around the cable drum 13. The winding and unwinding mechanism 2 is installed on the main shaft 12 and is used for releasing and recycling the cable body 14. An auxiliary mechanism 3 is arranged on the base 1 for judging the state of the cable body 14 and assisting in the winding and unwinding of the cable body 14.

[0027] The retracting and extending mechanism includes a first rotating sleeve 22 and a second rotating sleeve 23. The first rotating sleeve 22 and the second rotating sleeve 23 are coaxially rotatably connected to both ends of the main shaft 12 respectively. The first rotating sleeve 22 and the second rotating sleeve 23 are of hexagonal prism structure. Sliding sleeves 24 are sleeved on both the first rotating sleeve 22 and the second rotating sleeve 23. A first friction disc 221 is coaxially connected to the sliding sleeve 24 on the side close to the first rotating sleeve 22, and a second friction disc 231 is coaxially connected to the sliding sleeve 24 on the side close to the second rotating sleeve 23. Rotating rings 241 are coaxially rotatably connected to both the sliding sleeves 24. Connecting plates 252 are connected to both the rotating rings 241. A top plate 15 is connected to the tops of a pair of fixing plates 11. A fixed cylinder 25 is connected to the bottom of the top plate 15. Slide rods 251 penetrate through and are hermetically slidably connected to both ends of the fixed cylinder 25. Both ends of the slide rods 251 are respectively connected to the tops of two connecting plates 252. A power assembly is further provided on the first rotating sleeve 22 and the second rotating sleeve 23 for driving the cable drum 13 to rotate.

[0028] In this embodiment, the power assembly includes a motor 21. The motor 21 is installed on the fixing plate 11. A rotating shaft 26 is rotatably connected to the bottoms of a pair of fixing plates 11. The output shaft of the motor 21 is coaxially connected to the rotating shaft 26. A small gear 223 and a driving wheel 232 are coaxially connected to the rotating shaft 26. A large gear 222 is coaxially connected to the first rotating sleeve 22. The large gear 222 meshes with the small gear 223. A driven wheel 233 is coaxially connected to the second rotating sleeve 23. A transmission belt 234 is sleeved on both the driving wheel 232 and the driven wheel 233.

[0029] In this embodiment, the auxiliary mechanism 3 includes a mounting post 31 and an air pump 33. The mounting post 31 is mounted on the base 1. An installation groove 311 is formed at the top of the mounting post 31. Two guide wheels 32 are rotatably connected in the installation groove 311 through two pairs of connecting shafts 321. An annular guide groove 322 is formed on each of the two guide wheels 32 for guiding the cable body 14 to pass through. The air pump 33 is mounted on the top plate 15. An air supply pipe 34 is connected to the air outlet of the air pump 33. The air supply pipe 34 is connected with a first air pipe 341 and a second air pipe 342. The ends of the first air pipe 341 and the second air pipe 342 far from the air supply pipe 34 are respectively connected and communicated with the two ends of the fixed cylinder 25. A piston block 35 is connected to the middle position of the slide rod 251. The piston block 35 is in sealed sliding connection with the inner wall of the fixed cylinder 25. The two ends of the slide rod 251 are sleeved with first springs 351. The two ends of the two first springs 351 are connected to the piston block 35 and the inner wall of the fixed cylinder 25. The two ends of the fixed cylinder 25 are respectively connected with a first air duct 36 and a second air duct 37. Solenoid valves are arranged in the first air pipe 341 and the second air pipe 342. Two mounting rods 38 are connected to the side of the mounting post 31 away from the fixed plate 11. The two mounting rods 38 are respectively located on the upper and lower sides of the installation groove 311. A chute 381 is formed at the end of each mounting rod 38 away from the mounting post 31. A slider 382 is slidably connected in the chute 381. A detection rod 383 is connected to the outer end of each slider 382 located outside the chute 381. A second spring 384 is arranged in each chute 381. The two ends of the second spring 384 are respectively connected to the slider 382 and the groove wall of the chute 381. Pressure sensors are arranged on both of the two detection rods 383. The pressure sensor on the detection rod 383 close to the upper side is electrically connected to the solenoid valve in the first air pipe 341. When the pressure sensor on the detection rod 383 close to the upper side is pressed, the solenoid valve in the first air pipe 341 will be controlled to open. The pressure sensor on the detection rod 383 close to the lower side is electrically connected to the solenoid valve in the second air pipe 342. When the pressure sensor on the detection rod 383 close to the lower side is pressed, the solenoid valve in the second air pipe 342 will be controlled to open. The two pressure sensors are electrically connected to the control circuit of the air pump 33. When any one of the pressure sensors is pressed, the air pump 33 will be controlled to start.

[0030] In this embodiment, a cavity 323 is formed in each of the guide wheels 32. A plurality of air outlet holes 324 are formed in the guide groove 322 of each guide wheel 32 in an annular array and communicated with the cavity 323. An air guide groove 325 is formed in one of the connecting shafts 321 on each of the guide wheels 32 and communicated with the cavity 323. The two air guide grooves 325 on the two connecting shafts 321 are connected to the first air duct 36.

[0031] In this embodiment, the mounting post 31 is located at the mounting groove 311 and is connected with a cleaning ring 39 near one side of the mounting rod 38. An annular cavity 391 is formed in the cleaning ring 39. The annular cavity 391 of the cleaning ring 39 is hermetically connected with the second air duct 37. A plurality of inclined air spray holes 392 are formed in the inner ring surface of the cleaning ring 39 in an annular array and are communicated with the annular cavity 391.

[0032] In this embodiment, the diameter of the first air duct 36 is smaller than that of the first gas transmission pipe 341, and the diameter of the second air duct 37 is smaller than that of the second gas transmission pipe 342. That is, when the first gas transmission pipe 341 or the second gas transmission pipe 342 is opened for gas transmission, due to the influence of the pipe diameter, the air pressure at the gas transmission end of the fixed cylinder 25 will be greater than the air pressure at the non-gas transmission end, which will push the piston block 35 to slide towards the non-gas transmission end. And the reduction of the pipe diameter will make the air flow velocity entering the first air duct 36 and the second air duct 37 become larger, and the air ejected from the air outlet holes 324 and the air spray holes 392 has a certain impact force.

[0033] In this embodiment, the transmission ratio of the large gear 222 to the small gear 223 is 1:10, and the transmission ratio of the driving wheel 232 to the driven wheel 233 is 10:1. Through transmission, the rotation speeds of the first friction disc 221 and the second friction disc 231 are the same but the rotation directions are opposite.

[0034] The working process and principle of the present invention are as follows:

[0035] During use, the cable body 14 is pulled out from the cable drum 13 and will pass through the guide groove 322 between the two guide wheels 32 and the cleaning ring 39 in sequence and is connected to the drone. After the motor 21 is started, the staff controls the drone to fly.

[0036] When the drone flies upward or away from the device, the cable body 14 will be pulled upward to contact the upper detection rod 383, generating a certain extrusion. After the pressure sensor on the detection rod 383 is pressed, it will control the solenoid valve in the first air supply pipe 341 to open and simultaneously control the air pump 33 to start working. The air pump 33 will input air into the fixed cylinder 25 through the air supply pipe 34 and the first air supply pipe 341. Due to the relationship of the pipe diameter, the air pressure at one end of the fixed cylinder 25 where the first air supply pipe 341 is located will increase, pushing the piston block 35 to slide to the right, and at the same time driving the sliding rod 251 to slide to the right together, so that the connecting rod 252 pushes the sliding sleeve 24 to move to the right, making the second friction disc 231 fit against the side surface of the cable drum 13. The power output by the motor 21 will drive the second friction disc 231 and the cable drum 13 to rotate counterclockwise through the belt drive, so that the cable drum 13 releases the cable body 14 for the drone to fly. At the same time, the air input into the fixed cylinder 25 from the first air supply pipe 341 will enter the cavity 323 through the first air guide pipe 36 and the air guide groove 325, and then be ejected through multiple air outlet holes 324 to blow air into the gap between the guide wheel 32 and the cable body 14, reducing the friction force on the cable body 14 and decreasing the pulling force of the drone on the cable body 14. On the one hand, it prevents the drone from detaching from the cable body 14 due to excessive pulling force, and on the other hand, the reduction of the pulling force can extend the service life of the cable body 14.

[0037] When the drone returns or flies closer to the device, the length of the cable body 14 between the drone and the device will be too long. The excess cable body 14 will sag and squeeze the lower detection rod 383. After the pressure sensor on the detection rod 383 is pressed, it will control the solenoid valve in the second air supply pipe 342 to open. The air pump 33 will input air into the fixed cylinder 25 through the second air supply pipe 342. The air pressure at one end of the fixed cylinder 25 where the second air supply pipe 342 is located will increase, pushing the piston block 35 to slide to the left, making the first friction disc 221 fit against the side surface of the cable drum 13. The power output by the motor 21 will drive the cable drum 13 to rotate clockwise through the gear drive to wind up the excess cable body 14, avoiding the situation that the excess cable body 14 falls to the ground and is dragged and worn or gets entangled. At the same time, the air input into the fixed cylinder 25 from the second air supply pipe 342 will enter the annular cavity 391 of the cleaning ring 39 through the second air guide pipe 37, and then be ejected through multiple air jet holes 392 to blow the surface of the recovered cable body 14 at an inclined angle, effectively removing dust and other impurities adhering to the surface of the cable body 14 and ensuring the cleanliness of the recovered cable body 14.

[0038] When the drone stops at the designated position, the cable body 14 is in a proper stretching state and will not contact the upper and lower detection rods 383. At this time, the air pump 33 is in an unstarted state and stops supplying air. The piston block 35 in the fixed cylinder 25 returns to the middle position under the action of the first spring 351. At this time, neither the first friction disc 221 nor the second friction disc 231 contacts the cable drum 13, and the cable drum 13 is in a stagnant state and does not take in or release the cable body 14.

[0039] As is known by technical common sense, the present invention can be implemented by other embodiments that do not depart from its spiritual essence or essential features. Therefore, the above-disclosed embodiments are illustrative in all aspects and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are encompassed by the present invention.

Claims

1. A UAV cable anti-entanglement device, characterized in that: The invention comprises a base (1) and a retractable mechanism (2), wherein a pair of fixing plates (11) are mounted on the base (1), a main shaft (12) is connected between the pair of fixing plates (11), a cable drum (13) is rotatably connected to the main shaft (12), a cable body (14) is wound around the cable drum (13), the retractable mechanism (2) is mounted on the main shaft (12) and is used to release and retract the cable body (14), and an auxiliary mechanism (3) is provided on the base (1) and is used to determine the state of the cable body (14) and assist in the retraction and extension of the cable body (14); The retractable mechanism comprises a first rotating sleeve (22) and a second rotating sleeve (23), the first rotating sleeve (22) and the second rotating sleeve (23) being respectively connected to two ends of the main shaft (12) in a coaxial rotational manner, the first rotating sleeve (22) and the second rotating sleeve (23) being hexagonal prism-shaped structures, the first rotating sleeve (22) and the second rotating sleeve (23) being provided with a sliding sleeve (24) on a sliding sleeve (24) on a side close to the first rotating sleeve (22) being coaxially connected to a first friction disk (221), and the sliding sleeve (24) on a side close to the second rotating sleeve (23) being coaxially connected to a second friction disk (231). The two sliding sleeves (24) are coaxially rotatably connected to a rotating ring (241), and the two rotating rings (241) are connected to a connecting plate (252). The top of a pair of fixed plates (11) is connected to a top plate (15), and the bottom of the top plate (15) is connected to a fixed cylinder (25). Both ends of the fixed cylinder (25) are sealed and slidably connected to sliding rods (251), and the two ends of the sliding rod (251) are respectively connected to the top ends of the two connecting plates (252). The first rotating sleeve (22) and the second rotating sleeve (23) are also provided with a power assembly for driving the cable drum (13) to rotate.

2. The UAV cable anti-entanglement device according to claim 1, characterized in that: The power assembly comprises a motor (21), the motor (21) being mounted on the fixed plate (11), a pair of bottoms of the fixed plates (11) being rotatably connected to a rotating shaft (26), an output shaft of the motor (21) being coaxially connected to the rotating shaft (26), a small gear (223) and a driving wheel (232) being coaxially connected to the rotating shaft (26), a large gear (222) being coaxially connected to the first rotating sleeve (22), the large gear (222) being meshed with the small gear (223), a driven wheel (233) being coaxially connected to the second rotating sleeve (23), and a transmission belt (234) being provided on the driving wheel (232) and the driven wheel (233).

3. The UAV cable anti-entanglement device according to claim 1, characterized in that: The auxiliary mechanism (3) comprises a mounting column (31) and an air pump (33), wherein the mounting column (31) is mounted on the base (1), a mounting groove (311) is provided on the top of the mounting column (31), two guide wheels (32) are rotatably connected in the mounting groove (311) via two pairs of connecting shafts (321), and an annular guide groove (322) is provided on the two guide wheels (32) for guiding the cable body (14) to pass through, and the air pump (33) is mounted on the top plate (15), and an air outlet of the air pump (33) is connected to an air supply pipe (34), and the air supply pipe (34) is connected to a first An air delivery pipe (341) and a second air delivery pipe (342), wherein one end of the first air delivery pipe (341) and the second air delivery pipe (342) away from the air supply pipe (34) are respectively connected to two ends of the fixed cylinder (25), a piston block (35) is connected to the middle position of the sliding rod (251), and the piston block (35) is slidably connected to the inner wall of the fixed cylinder (25), and first springs (351) are sleeved on both ends of the sliding rod (251), and the two ends of the first springs (351) are connected to the piston block (35) and the inner wall of the fixed cylinder (25), and the two ends of the fixed cylinder (25) A first air guide pipe (36) and a second air guide pipe (37) are respectively connected, and solenoid valves are arranged in the first air delivery pipe (341) and the second air delivery pipe (342). Two mounting rods (38) are connected to the side of the mounting column (31) away from the fixing plate (11), and the two mounting rods (38) are respectively located at the upper and lower sides of the mounting groove (311), and a sliding groove (381) is formed at one end of each mounting rod (38) away from the mounting column (31), and a sliding block (382) is slidably connected in the sliding groove (381), and each sliding block (382) is connected to a detection device at one end located outside the sliding groove (381). A measuring rod (383), each of the slide grooves (381) is provided with a second spring (384), the two ends of the second spring (384) are respectively connected to the slider (382) and the groove wall of the slide groove (381), and pressure sensors are provided on the two measuring rods (383). The pressure sensor on the measuring rod (383) near the top is electrically connected to the electromagnetic valve in the first air supply pipe (341), and the pressure sensor on the measuring rod (383) near the bottom is electrically connected to the electromagnetic valve in the second air supply pipe (342). The two pressure sensors are electrically connected to the control circuit of the air pump (33).

4. The UAV cable anti-entanglement device according to claim 3, characterized in that: A cavity (323) is provided in each guide wheel (32); a plurality of air outlet holes (324) are provided in a circular array in the guide groove (322) of each guide wheel (32) and are communicated with the cavity (323); a connecting shaft (321) on each guide wheel (32) is provided with an air guide groove (325) which is communicated with the cavity (323); and two air guide grooves (325) on two connecting shafts (321) are connected to a first air guide pipe (36).

5. The UAV cable anti-entanglement device according to claim 3, characterized in that: The mounting column (31) is located at the mounting groove (311) and is connected to a cleaning ring (39) on one side close to the mounting rod (38); an annular cavity (391) is provided in the cleaning ring (39); the annular cavity (391) of the cleaning ring (39) is sealingly connected to the second air guide pipe (37); and the inner annular surface of the cleaning ring (39) is provided with a plurality of inclined air injection holes (392) in the form of an annular array and are in communication with the annular cavity (391).

6. The UAV cable anti-entanglement device according to claim 3, characterized in that: The diameter of the first air guide pipe (36) is smaller than the diameter of the first air delivery pipe (341), and the diameter of the second air guide pipe (37) is smaller than the diameter of the second air delivery pipe (342).

7. The UAV cable anti-entanglement device according to claim 2, characterized in that: The transmission ratio between the large gear (222) and the small gear (223) is 1:10, and the transmission ratio between the driving wheel (232) and the driven wheel (233) is 10:1.

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