Electric power inspection unmanned aerial vehicle

Abstract

The application relates to the technical field of electric power inspection, and discloses an electric power inspection unmanned aerial vehicle, which comprises an unmanned aerial vehicle body, two landing gears arranged on the two sides of the unmanned aerial vehicle body, a suspension mechanism connected to the bottom of the unmanned aerial vehicle body and the landing gears, a driving mechanism arranged between the two landing gears through the suspension mechanism, a plurality of annular gear racks rotationally arranged at the bottom of the driving mechanism, an opening arranged at the bottom of the annular gear racks, clamping pieces capable of expanding the opening arranged at the bottom of the two landing gears, and an adjusting mechanism arranged inside the top end of the clamping pieces. The rotating pipe and the first driven shaft are matched with each other, the first moving rod is in contact with the spacer rod, the clamping pieces are expanded on the two sides, and the annular gear racks are reset, so that the unmanned aerial vehicle can easily pass through the spacer rod barrier, the problem that the unmanned aerial vehicle cannot normally pass through the spacer rod is avoided, the inspection efficiency is improved, and the electric power inspection of the unmanned aerial vehicle is better.

Description

Technical Field

[0001] This invention relates to the field of power line inspection technology, specifically to a power line inspection drone. Background Technology

[0002] In power systems, cables are exposed to harsh environments for extended periods, making them prone to cracks and damage, necessitating regular inspections. With technological advancements, drone inspections have gradually replaced traditional manual inspections, significantly improving efficiency, expanding inspection scope, reducing labor costs, and promoting the sustainable development of the power industry.

[0003] Chinese patent application CN202311658266.0 discloses a power line inspection drone, including a fuselage and a landing gear assembly. The landing gear assembly includes an adjustment component and a locking component. The locking component is located at the bottom of the adjustment component. The adjustment component includes a support frame, a connecting frame, a first servo motor, a second servo motor, two rotating shafts, and a rotating frame. The locking component includes two sets of clamping parts, a horizontal plate, and two locking devices. The two locking devices are symmetrically fixedly connected to the top of the horizontal plate. The horizontal plate is fixedly engaged with both ends of the rotating frame by the two locking devices. The two sets of clamping parts are symmetrically arranged on the bottom side of the horizontal plate. Each clamping part includes a clamping block, three first ball bearings, and two compression springs. A detection mechanism is provided between the two sets of clamping parts. However, during operation, this patent cannot automatically avoid spacers and requires the locking component to be opened during flight, which is relatively complex and not conducive to rapid inspection.

[0004] During the inspection, the drone and the cable are separated. If the drone is too far away, the camera will not capture clear images. If the drone is too close, the cable will sway (affected by the propeller airflow), which will also make it difficult for the camera to capture images. When the drone and the cable are integrated, the drone will not be able to pass through spacers, vibration dampers, wire clamps, phase anti-galloping spacers, etc., which makes the passage more complicated and is not conducive to rapid inspection.

[0005] Therefore, we propose a power line inspection drone to solve the above problems. Summary of the Invention

[0006] The main objective of this invention is to provide a power line inspection drone that features stable image acquisition, prevents propeller lift airflow from affecting cables, and allows the drone to easily pass through spacer obstacles. This enables rapid inspection of relatively complex obstacles and effectively solves the technical problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a power line inspection drone, comprising a drone body and two landing gears disposed on both sides of the drone body, and further comprising:

[0008] A suspension mechanism, which is connected to the bottom of the UAV body and the landing gear, is used to suspend the device;

[0009] The drive mechanism is located between the two landing gears via the suspension mechanism. Several annular racks are rotatably arranged at the bottom of the drive mechanism. The bottom of the annular racks has an opening. The drive mechanism is used to drive and adjust the annular racks.

[0010] The bottom of both landing gears is provided with an expandable opening clamp for securing the cable;

[0011] An adjustment mechanism, located inside the top of the clamping member, is used to adjust the tension of the clamping member.

[0012] Preferably, the adjustment mechanism includes an adjustment block slidably connected to the top of the clamping member, and movable plates slidably connected to both sides of the adjustment block. One inclined surface of each of the two movable plates is parallel to the inclined surface of the adjustment block. A sealing plate is fixedly connected to the bottom of the movable plate. An adjustment cavity is formed at the top of the clamping member. The sealing plate divides the adjustment cavity into two chambers. A first support spring is fixedly connected between the sealing plate and the bottom of the lower chamber of the adjustment cavity.

[0013] Preferably, a first moving rod is fixedly connected to the longer side of the adjusting block. The first moving rod passes through the clamping member and is slidably connected within the clamping member. A second moving rod is fixedly connected to the shorter side of the adjusting block. The second moving rod passes through the outer surface of the clamping member and has a threaded groove, and is slidably connected within the clamping member. A moving tube is sleeved on the outer wall of the second moving rod. A fixed rod is fixedly connected to one side of the inner side of the moving tube. A guide ball is fixedly connected to the bottom end of the fixed rod, and the guide ball is slidably connected to the threaded groove.

[0014] Preferably, a limiting block is fixedly connected to the outer wall of the movable tube, and a rotating tube is sleeved on the outer wall of one end of the movable tube. A limiting groove is opened on the side of the rotating tube near the movable tube, and the limiting block slides in the limiting groove.

[0015] Preferably, the two clamping members are fixedly connected to connecting columns at both ends of the driving mechanism. Three ball seats are evenly arranged on the clamping members, one ball seat is located in the middle of the clamping member, and the other two ball seats are located at both ends of the clamping member. Each of the three ball seats has a ball groove, and a rotating ball is rotatably arranged in the ball groove. The clamping member has two symmetrically arranged bending parts, which can be elastically bent. A bending cavity is opened inside the bending part, and a connecting hole is opened between the bending cavity and the adjustment cavity.

[0016] Preferably, the suspension mechanism includes a loading rope, a take-up roller, a rotating shaft, and a storage box. The storage box is connected to the bottom of the UAV body and the landing gear. The loading rope is wound around the take-up roller, which is rotatably mounted in the storage box via the rotating shaft. A torsion spring is also provided at the connection between the rotating shaft and the inner wall of the storage box. The torsion spring is used to provide a winding force for the rotating shaft and the take-up roller to wind up the loading rope.

[0017] Preferably, the drive mechanism includes a drive cabinet, the top and left and right sides of which are connected to the loading rope. A motor is fixedly connected inside the drive cabinet, and a drive bevel gear is fixedly connected to the output end of the motor. A first bevel gear meshes with one side of the drive bevel gear, and a second bevel gear meshes with the other side. A first driven shaft is fixedly connected to the center of the first bevel gear and is fixedly connected to the moving tube. Several forward gears are evenly connected to the first driven shaft, and the forward gears mesh with a ring rack. A second driven shaft is fixedly connected to the center of the second bevel gear, and several reverse gears are evenly connected to the second driven shaft, and the reverse gears mesh with a ring rack.

[0018] Preferably, a partition is fixedly connected inside the drive mechanism, a guide strip is fixedly provided on the side of the annular rack, a guide groove is provided on the partition, the guide strip is slidably disposed in the guide groove, a bottom groove for moving the annular rack is provided at the bottom of the drive cabinet, two image acquisition devices are symmetrically connected to the inner side of the annular rack, and a wiping cotton is fixedly connected to the inner side of the annular rack.

[0019] Preferably, the inner side of the annular rack is provided with a plurality of ice-breaking teeth that can be movably extended and retracted, and the annular rack has an inner cavity inside, within which an inner ring is rotatably arranged, and both ends of the inner ring are supported by a second support spring.

[0020] Preferably, a plurality of guide grooves are evenly provided on the inner ring, and a sliding column is slidably disposed in the guide groove. The sliding column is fixedly connected to the ice-breaking tooth, and the ice-breaking tooth is slidably disposed in the inner cavity.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. This invention uses the cooperation between the drone body and the suspension mechanism. The drone can move relative to the cable without affecting the position of the drive mechanism. It has lower requirements for the flight accuracy of the drone. Even if the drone deviates slightly on the preset path, it will not cause the cable to be pulled or dragged. Regardless of the cable swaying in strong winds or the drone's flight path deviation, it will not affect the detection effect of the drive mechanism. Multiple image acquisition devices can complete the all-round image acquisition of the cable surface, better detect problems on the cable, and thus improve the detection effect of the inspection drone.

[0023] 2. By arranging the ice-breaking teeth, this invention enables the image acquisition device to clearly detect defects on the cable surface, and breaks up the ice layer on the cable surface, reducing the weight of the cable due to the ice layer, avoiding flashover accidents, and improving the service life of the cable.

[0024] 3. The present invention uses a rotating tube and a first driven shaft to cooperate with each other. When the first moving rod contacts the spacer, the clamping parts expand on both sides and the annular rack resets. This allows the drone to easily pass through the spacer obstacle, avoiding the problem that the drone cannot pass through the spacer normally, improving inspection efficiency and enabling better drone power inspection. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the drive mechanism of the present invention;

[0027] Figure 3 This is a cross-sectional view of the storage box of the present invention;

[0028] Figure 4 This is a cross-sectional view of the active bevel gear of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the annular rack of the present invention;

[0030] Figure 6 This is a cross-sectional view of the guide groove of the present invention;

[0031] Figure 7 This is a schematic diagram of the ring rack of the present invention in its working state;

[0032] Figure 8 This is a cross-sectional view of the wiping cotton of the present invention;

[0033] Figure 9 This is a cross-sectional view of the ice-breaking tooth structure of the present invention;

[0034] Figure 10 This is a cross-sectional view of the clamping component of the present invention;

[0035] Figure 11 This is a schematic diagram of the trapezoidal block of the present invention;

[0036] Figure 12 This is a cross-sectional view of the moving tube of the present invention.

[0037] In the diagram: 1. UAV body; 2. Landing gear; 21. Clamping component; 22. Connecting column; 23. Ball seat; 24. Ball groove; 25. Rotating ball; 26. Adjustment cavity; 27. Bending section; 28. Bending cavity; 29. ​​Connecting hole; 3. Suspension mechanism; 31. Loading rope; 32. Rewinding roller; 33. Rotating shaft; 34. Storage box; 4. Drive mechanism; 41. Ring rack; 42. Motor; 43. Driving bevel gear; 44. First bevel gear; 45. Second bevel gear; 46. First driven shaft; 47. Forward gear; 48. Second driven shaft; 49. Reverse gear; 410. Partition plate; 41 1. Guide bar; 412. Guide groove; 413. Bottom groove; 414. Image acquisition unit; 415. Wiping cotton; 416. Ice-breaking teeth; 417. Inner cavity; 418. Inner ring; 419. Second support spring; 420. Guide groove; 421. Sliding column; 422. Drive cabinet; 5. Adjustment mechanism; 51. Adjustment block; 52. Moving plate; 53. Sealing plate; 54. First support spring; 55. First moving rod; 56. Second moving rod; 57. Threaded groove; 58. Moving tube; 59. Fixed rod; 510. Guide ball; 511. Limiting block; 512. Rotating tube; 513. Limiting groove. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1

[0040] Existing inspection drones are separated from their cables during inspections. If the drone is too far away, the camera will not capture clear images, and if it is too close, the cable will sway (due to the propeller airflow), which also makes it difficult for the camera to capture images.

[0041] like Figure 1 As shown, a power inspection drone includes a drone body 1 and two landing gears 2 located on both sides of the drone body 1. A suspension mechanism 3 is connected to the bottom of the drone body 1 and the landing gears 2. A drive mechanism 4 is located between the two landing gears 2 via the suspension mechanism 3.

[0042] like Figure 3As shown, the suspension mechanism 3 includes a loading rope 31, a take-up roller 32, a rotating shaft 33, and a storage box 34. The storage box 34 is connected to the bottom of the UAV body 1 and the landing gear 2. The loading rope 31 is wound around the take-up roller 32. The take-up roller 32 is rotatably mounted in the storage box 34 via the rotating shaft 33. A torsion spring is also provided at the connection between the rotating shaft 33 and the inner wall of the storage box 34. The torsion spring is used to provide the rotating shaft 33 and the take-up roller 32 with the winding force to wind up the loading rope 31. Under normal conditions, the drive mechanism 4 is suspended and fixed by the loading ropes 31 in three directions to maintain a stable position. When it is necessary to connect the drive mechanism 4 to the cable, the clamp 21 is positioned at the top of the cable, and then the UAV is lowered. The UAV lowering can clamp the clamp 21 onto the cable. At this time, the loading ropes 31 on both sides will be stretched and the corresponding torsion springs will be compressed through the take-up roller 32 and the rotating shaft 33.

[0043] like Figure 1 , Figure 2 As shown, the bottom of the drive mechanism 4 is rotatably equipped with several annular racks 41. The bottom of the annular racks 41 has an opening to facilitate cable clamping. The bottom of the two landing gears 2 is equipped with clamping members 21 with expandable openings. The two clamping members 21 are respectively fixedly connected to the connecting columns 22 at the beginning and end of the drive mechanism 4. Three ball seats 23 are evenly arranged on the clamping members 21. One ball seat 23 is located in the middle of the clamping member 21, and the other two ball seats 23 are located at the two ends of the clamping member 21. Each of the three ball seats 23 has a ball groove 24. A rotating ball 25 is rotatably arranged in the ball groove 24. Two bending parts 27 are symmetrically arranged on the clamping members 21, which can be bent elastically.

[0044] The entire drive mechanism 4 is connected to the drone body 1 via the loading rope 31. Relative displacement can occur between the drive mechanism 4 and the drone body 1. When the drive mechanism 4 moves upward, the rotating shaft 33 rotates within the storage box 34, driving the winding roller 32 to rotate. The rotation of the winding roller 32 releases the loading rope 31, and the torsion spring is released. Moving to the left, the loading rope 31 on the left side winds up, the torsion spring winds up, and the loading rope 31 on the right side and top winds up and releases, and the torsion spring is released. Moving to the right, the loading rope 31 winds up, the torsion spring winds up, and the loading rope 31 on the left side and top winds up and releases, and the torsion spring is released. Moving downward, the loading rope 31 on the top and both sides winds up, and the torsion spring is wound up. The drone body 1 is then activated. The drone body 1 flies to the airspace above the cable, first placing the two ball seats 23 at both ends of the clamping member 21 against the top of the cable. The drone body 1 moves downward, and the clamping member 21 moves downward via the suspension mechanism 3. The two ends of the clamping member 21 are connected to the cable. The cable expands elastically at the bend 27, which then engages the clamp 21. After engagement, the clamp 21 returns to its original position, connecting the cable to the clamp 21 and the drive mechanism 4. When the drone flies along the cable's direction, the cable is significantly less affected by the lift airflow because it is connected to the clamp 21. The rotating ball 25 also acts as a wheel and guide, making the clamp 21 move more smoothly and steadily on the cable. During the drone's flight, it can move relative to the cable without affecting the position of the drive mechanism 4, thus reducing the accuracy requirements for the drone's flight. Even if the drone deviates slightly from the preset path, it will not cause the cable to be pulled or dragged. Regardless of cable swaying in strong winds or drone flight path deviation, the detection effect of the drive mechanism 4 is not affected, thereby improving the detection effect of the inspection drone.

[0045] like Figures 5-8 As shown, the drive mechanism 4 includes a drive cabinet 422. The top and left and right sides of the drive cabinet 422 are connected to the loading rope 31. A motor 42 is fixedly connected inside the drive cabinet 422. The motor 42 can rotate forward and backward. Forward rotation causes the ring rack 41 to rotate and wrap the cable, while reverse rotation causes the ring rack 41 to return to its original shape. A drive bevel gear 43 is fixedly connected to the output end of the motor 42. One side of the drive bevel gear 43 meshes with a first bevel gear 44, and the other side meshes with a second bevel gear 45. The center of the first bevel gear 44 is fixedly connected to a second bevel gear 45. A driven shaft 46 is fixedly connected to a moving tube 58. Several forward gears 47 are evenly connected to the first driven shaft 46, meshing with a ring rack 41. A second driven shaft 48 is fixedly connected to the center of a second bevel gear 45, and several reverse gears 49 are evenly connected to the second driven shaft 48, meshing with the ring rack 41. The gear ratios of the forward gears 47, reverse gears 49, and ring rack 41 are different, allowing control of the rotation distance of the ring rack 41. Figure 8As shown, the specific gear ratio and the number of annular racks 41 can be selected according to actual needs by those skilled in the art. A partition 410 is also fixedly connected inside the drive mechanism 4. A guide bar 411 is fixedly provided on the side of the annular rack 41. A guide groove 412 is provided on the partition 410. The guide bar 411 is slidably provided in the guide groove 412. A bottom groove 413 for moving the annular rack 41 is provided at the bottom of the drive cabinet 422. Two image acquisition devices 414 are symmetrically connected to the inner side of the annular rack 41. A wiping cotton 415 is fixedly connected to the inner side of the annular rack 41.

[0046] The cable is held in the clamp 21. The UAV body 1 flies along the cable's laying direction, starting the motor 42. The motor 42 operates through a transmission, simultaneously driving the first bevel gear 44 and the second bevel gear 45 to rotate. The first bevel gear 44 and the second bevel gear 45 respectively drive the first driven shaft 46 and the second driven shaft 48 to rotate. The first driven shaft 46 drives the forward gear 47 to rotate, and the second driven shaft 48 drives the reverse gear 49 to rotate. By adjusting the gear ratio between the forward gear 47, the reverse gear 49, and the ring rack 41, the rotation distance of the ring rack 41 can be controlled, allowing multiple ring racks 41 to rotate in different directions and at different distances. This allows multiple image acquisition devices 414 to completely cover the perimeter of the cable. After this, the motor 42 stops rotating, making the flaw detection and inspection more comprehensive. At the same time, the guide bar 411... The sliding within the guide groove 412 serves two purposes: firstly, it positions the annular rack 41 to prevent it from disengaging from the drive mechanism 4; secondly, it guides the rotation of the annular rack 41. As the drone flies along the cable laying direction, multiple image acquisition devices 414 can capture images of the cable surface from all angles, enabling better detection of problems on the cable. This avoids incomplete inspections and repeated inspections that could affect the inspection progress, thus ensuring comprehensive inspection and better detection of cable defects, improving the inspection effect. Alternatively, the image acquisition devices 414 on the inner wall of the annular rack 41 can be replaced with wiping cotton 415. As the drone flies along the cable laying direction, the wiping cotton 415 can remove dust from the cable surface, facilitating clear image acquisition and enabling clearer detection of cable defects.

[0047] like Figure 10 As shown, the inner side of the annular rack 41 is movably and telescopically provided with several ice-breaking teeth 416. The annular rack 41 has an inner cavity 417. An inner ring 418 is rotatably arranged in the inner cavity 417. Both ends of the inner ring 418 are supported by a second support spring 419. Several guide grooves 420 are evenly provided on the inner ring 418. A sliding column 421 is slidably arranged in the guide groove 420. The sliding column 421 is fixedly connected to the ice-breaking teeth 416. The ice-breaking teeth 416 are slidably arranged in the inner cavity 417.

[0048] In cold weather, ice builds up on the conductor, increasing its mass and volume, leading to increased sag and reduced ground clearance. When this ice accumulates to a certain extent, a flashover may occur. When the entire annular rack 41 rotates counterclockwise, the inner ring 418 also rotates counterclockwise under gravity, compressing the second support spring 419 on the left. The counterclockwise rotation of the inner ring 418 guides the sliding column 421 through the guide groove 420, allowing the ice-breaking tooth 416 to extend. Since the ice-breaking tooth 416 extends under gravity, it does not press heavily against the outer wall of the cable, thus achieving... It achieves the function of ice breaking without scratching or damaging the cable. Conversely, the clockwise rotating annular rack 41 allows the guide groove 420 on the corresponding inner ring 418 to open in the opposite direction. It can also extend the ice breaking teeth 416 through the change of center of gravity, effectively breaking the ice layer on the cable surface without damaging the outer wall of the cable. The arrangement of the ice breaking teeth 416 enables the image acquisition device 414 to clearly detect defects on the cable surface. On the other hand, it breaks the ice layer on the cable surface, reduces the weight of the cable due to the ice layer, avoids flashover accidents, and improves the service life of the cable.

[0049] With the cooperation of the drone body 1 and the suspension mechanism 3, the drone can move relative to the cable without affecting the position of the drive mechanism 4. The requirements for the drone's flight accuracy are lower. Even if the drone deviates slightly on the preset path, it will not cause the cable to be pulled or dragged. Regardless of the cable swaying in strong winds or the drone's flight path deviating, it will not affect the detection effect of the drive mechanism 4. Multiple image acquisition devices 414 can complete the all-round image acquisition of the cable surface, better detect problems on the cable, and thus improve the detection effect of the inspection drone.

[0050] Example 2

[0051] In existing inspection drones, when the drone is integrated with the cable during the inspection process, it will encounter spacers, vibration dampers, wire clamps, phase anti-galling spacers, etc., which will cause the drone to be unable to pass normally. The passage is complicated and not conducive to rapid inspection. Based on the above embodiments,

[0052] like Figures 10-12As shown, the adjustment mechanism 5 is located inside the top of the clamping member 21. The adjustment mechanism 5 includes an adjustment block 51, which is trapezoidal in shape and slidably connected to the top of the clamping member 21. Moving plates 52 are slidably connected to both sides of the adjustment block 51. One inclined surface of the two moving plates 52 is parallel to the inclined surface of the adjustment block 51. When the adjustment block 51 moves, it can push the moving plates 52 downward. A sealing plate 53 is fixedly connected to the bottom of the moving plates 52. An adjustment cavity 26 is opened at the top of the clamping member 21. The sealing plate 53 divides the adjustment cavity 26 into two chambers. A first support spring 54 is fixedly connected between the sealing plate 53 and the bottom of the lower chamber of the adjustment cavity 26. The first support spring 54 is used to support the sealing plate 53.

[0053] like Figures 10-12 As shown, a first moving rod 55 is fixedly connected to the longer side of the adjusting block 51. The first moving rod 55 passes through the clamping member 21 and is slidably connected within the clamping member 21. A second moving rod 56 is fixedly connected to the shorter side of the adjusting block 51. The second moving rod 56 passes through the outer surface of the clamping member 21 and has a threaded groove 57, and is slidably connected within the clamping member 21. A moving tube 58 is sleeved on the outer wall of the second moving rod 56. A fixed rod 59 is fixedly connected to one side of the inner side of the moving tube 58. A guide ball 510 is fixedly connected to the bottom end of the fixed rod 59. The guide ball 510 is slidably connected to the threaded groove 57. The annular rack 4... When not rotating, the guide ball 510 is on the side of the threaded groove 57 close to the clamping member 21. After the annular rack 41 rotates, the guide ball 510 is on the side of the threaded groove 57 away from the clamping member 21. The outer wall of the moving tube 58 is fixedly connected to the limiting block 511. One end of the moving tube 58 is fitted with a rotating tube 512. The rotating tube 512 is provided with a limiting groove 513 on the side close to the moving tube 58. The limiting block 511 slides in the limiting groove 513. The bending part 27 is provided with a bending cavity 28. A connecting hole 29 is provided between the bending cavity 28 and the adjusting cavity 26. The first driven shaft 46 is fixedly connected to the moving tube 58.

[0054] When encountering a spacer bar, the drive mechanism 4 cannot pass normally. The first moving rod 55 preferentially contacts the spacer bar. The UAV body 1 continues to move, causing the first moving rod 55 to contact the spacer bar and move into the clamping member 21. The first moving rod 55 drives the adjusting block 51 to move, the adjusting block 51 drives the moving plate 52 to move downward, and the moving plate 52 drives the sealing plate 53 to move downward. The sealing plate 53 squeezes the gas in the lower chamber of the adjusting cavity 26 through the connecting hole 29 into the bending cavity 28, causing the gas inside the bending cavity 28 to deform and causing the clamping member 21 to expand on both sides, allowing it to easily pass through the spacer bar obstacle. At the same time, the adjusting block 51 drives the second moving rod 56 to move. The movement of the second moving rod 56 causes the guide ball 510 to rotate along the groove 57. The guide ball 510 drives the moving tube 58 to rotate through the fixed rod 59. When the 10 rotates, it moves, causing the moving tube 58 to move. The moving tube 58 causes the limiting block 511 to move inside the limiting groove 513 without affecting the movement of the rotating tube 512. The rotation of the moving tube 58 causes the rotating tube 512 to rotate, which in turn causes the first driven shaft 46 to rotate. The first driven shaft 46 causes the first bevel gear 44 and the forward gear 47 to rotate in opposite directions. When the motor 42 stops rotating, the first bevel gear 44 can drive the active bevel gear 43 to rotate through external force. The active bevel gear 43 drives the second driven shaft 48 to rotate. The second driven shaft 48 drives the second driven shaft 48 and the reverse gear 49 to rotate, so that the ring rack 41 returns to its original state and can easily pass through the spacer bar, avoiding the problem that the UAV cannot pass through the spacer bar normally, improving the inspection efficiency and making the UAV power inspection better.

[0055] By cooperating with the first driven shaft 46 through the rotating tube 512, the first moving rod 55 contacts the spacer bar, the clamping member 21 expands on both sides, and the annular rack 41 resets, which can easily pass through the spacer bar obstacle, avoiding the problem that the UAV cannot pass through the spacer bar normally, improving the inspection efficiency and making the UAV power inspection better.

[0056] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A power line inspection drone, comprising a drone body and two landing gears disposed on both sides of the drone body, characterized in that, Also includes: A suspension mechanism, which is connected to the bottom of the UAV body and the landing gear, is used to suspend the device; The drive mechanism is located between the two landing gears via the suspension mechanism. Several annular racks are rotatably arranged at the bottom of the drive mechanism. The bottom of the annular racks has an opening. The drive mechanism is used to drive and adjust the annular racks. The bottom of both landing gears is provided with an expandable opening clamp for securing the cable; An adjustment mechanism, located inside the top of the clamping member, is used to adjust the tension of the clamping member; The adjustment mechanism includes an adjustment block, which is slidably connected to the top of the clamping member. Moving plates are slidably connected to both sides of the adjustment block. One inclined surface of each of the two moving plates is parallel to the inclined surface of the adjustment block. A sealing plate is fixedly connected to the bottom of the moving plate. An adjustment cavity is opened at the top of the clamping member. The sealing plate divides the adjustment cavity into two chambers. A first support spring is fixedly connected between the sealing plate and the bottom of the lower chamber of the adjustment cavity. A first moving rod is fixedly connected to the longer side of the adjusting block. The first moving rod passes through the clamping member and is slidably connected within the clamping member. A second moving rod is fixedly connected to the shorter side of the adjusting block. The second moving rod passes through the outer surface of the clamping member and has a threaded groove, and is slidably connected within the clamping member. A moving tube is sleeved on the outer wall of the second moving rod. A fixed rod is fixedly connected to one side of the inner side of the moving tube. A guide ball is fixedly connected to the bottom end of the fixed rod, and the guide ball is slidably connected to the threaded groove. A limiting block is fixedly connected to the outer wall of the movable tube. A rotating tube is sleeved on the outer wall of one end of the movable tube. A limiting groove is opened on the side of the rotating tube near the movable tube, and the limiting block slides in the limiting groove.

2. The power line inspection drone according to claim 1, characterized in that: Two clamping members are fixedly connected to connecting columns at the beginning and end of the driving mechanism, respectively. Three ball seats are evenly arranged on the clamping members. One ball seat is located in the middle of the clamping member, and the other two ball seats are located at the two ends of the clamping member. Each of the three ball seats has a ball groove, and a rotating ball is rotatably arranged in the ball groove. Two bending parts are symmetrically arranged on the clamping members, which can be bent elastically. A bending cavity is opened inside the bending part, and a connecting hole is opened between the bending cavity and the adjustment cavity.

3. The power line inspection drone according to claim 2, characterized in that: The suspension mechanism includes a loading rope, a take-up roller, a rotating shaft, and a storage box. The storage box is connected to the bottom of the drone body and the landing gear. The loading rope is wound around the take-up roller, which is rotatably mounted in the storage box via the rotating shaft. A torsion spring is also provided at the connection between the rotating shaft and the inner wall of the storage box. The torsion spring is used to provide a winding force for the rotating shaft and the take-up roller to wind up the loading rope.

4. A power line inspection drone according to claim 3, characterized in that: The drive mechanism includes a drive cabinet, the top and left and right sides of which are connected to loading ropes. A motor is fixedly connected inside the drive cabinet, and a driving bevel gear is fixedly connected to the output end of the motor. A first bevel gear meshes with one side of the driving bevel gear, and a second bevel gear meshes with the other side. A first driven shaft is fixedly connected to the center of the first bevel gear and is fixedly connected to a moving tube. Several forward gears are evenly connected to the first driven shaft, and the forward gears mesh with a ring rack. A second driven shaft is fixedly connected to the center of the second bevel gear, and several reverse gears are evenly connected to the second driven shaft, and the reverse gears mesh with a ring rack.

5. A power line inspection drone according to claim 4, characterized in that: A partition is fixedly connected inside the drive mechanism. A guide strip is fixedly provided on the side of the annular rack. A guide groove is provided on the partition. The guide strip is slidably disposed in the guide groove. A bottom groove for moving the annular rack is provided at the bottom of the drive cabinet. Two image acquisition devices are symmetrically connected to the inner side of the annular rack. A wiping cotton is fixedly connected to the inner side of the annular rack.

6. A power line inspection drone according to claim 5, characterized in that: The inner side of the annular rack is provided with several ice-breaking teeth that can be moved and extended. The annular rack has an inner cavity, and an inner ring is rotatably arranged in the inner cavity. Both ends of the inner ring are supported by a second support spring.

7. A power line inspection drone according to claim 6, characterized in that: The inner ring is provided with a number of guide grooves evenly distributed, and a sliding column is slidably disposed in the guide groove. The sliding column is fixedly connected to the ice-breaking tooth, and the ice-breaking tooth is slidably disposed in the inner cavity.

Images