Unmanned aerial vehicle inspection equipment for overhead transmission line

Abstract

The invention relates to the field of electric power transmission equipment inspection, in particular to overhead transmission line unmanned aerial vehicle inspection equipment which comprises an unmanned aerial vehicle, landing plates are fixedly installed on the lower portion of the unmanned aerial vehicle in a bilateral symmetry mode through supporting rods, fixed supporting plates are fixedly installed on the upper portions of the landing plates, and the fixed supporting plates are of inclined structures gradually inclining towards the middle of the unmanned aerial vehicle from bottom to top. According to the unmanned aerial vehicle, the unmanned aerial vehicle can be hung on the overhead power transmission line by adopting the moving rod to drive the first grooved wheel on the moving rod, the rotor wings of the unmanned aerial vehicle are closed for routing inspection, and the unmanned aerial vehicle can be hung on the overhead power transmission line, so that the unmanned aerial vehicle can be hung on the overhead power transmission line, and the routing inspection efficiency is improved. Therefore, the power consumption of the unmanned aerial vehicle is greatly reduced, the effective working time of the unmanned aerial vehicle is prolonged, the inspection efficiency is further improved, the unmanned aerial vehicle can be prevented from being blown off by sudden strong wind in a mountainous area by hanging the unmanned aerial vehicle, and the safety of the unmanned aerial vehicle is ensured.

Description

Technical Field

[0001] The present invention relates to the field of inspection of electric power transportation equipment, and in particular to an overhead power transmission line unmanned aerial vehicle inspection device. Background Art

[0002] Overhead transmission lines refer to power lines that use insulators and hardware to install transmission wires on poles and towers to transmit electricity from power plants to substations or users. In order to ensure the safe and stable operation of the power system, extend the service life of equipment, and reduce operation and maintenance costs, it is necessary to inspect overhead transmission lines.

[0003] At present, the intelligence and automation of power transmission scene inspections have been greatly improved. Traditional manual inspections are gradually changing to inspections with fewer or even no people. UAV technology is widely used in the inspection of overhead transmission lines. UAVs integrate image processing, control and wireless communication functions. They use image data processing technology to intelligently detect the status of target equipment and communicate with the background system through wireless communication equipment, solving the problems of long working time, low efficiency and waste of human resources in traditional foot inspections, while reducing the occurrence of safety accidents.

[0004] However, when existing drones follow overhead power lines for flight inspections, sudden strong winds in mountainous areas will interfere with the flight of the drones, making them prone to the risk of crashing. In addition, drones are powered by batteries, and long-term flights will cause the drone's power to decrease rapidly, thereby limiting the time for each drone inspection and reducing the efficiency of the inspection. Summary of the invention

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an overhead power transmission line drone inspection equipment, including a drone, a landing plate is fixedly installed on the lower part of the drone symmetrically through a support rod, a fixed support plate is fixedly installed on the upper part of the landing plate, and the fixed support plate is an inclined structure that gradually inclines from bottom to top toward the middle of the drone, and the two landing plates and the fixed support plate are jointly provided with a hanging mechanism for hanging on the transmission line, and the two landing plates are jointly provided with a pulling mechanism for tightening the transmission line.

[0006] The wire hanging mechanism includes a moving rod symmetrically arranged on the side of the landing plate away from the middle of the drone, the moving rod is slidably connected to the landing plate along the front and rear directions, and a sliding groove for the lower part of the moving rod to slide is opened on the left and right sides of the middle of the landing plate, and a No. 1 groove wheel is rotatably provided on the upper rear side of the moving rod located on the front side. The wire hanging mechanism also includes a locking component for locking two moving rods on the same landing plate together.

[0007] The wire-pulling mechanism includes two rotating shaft rods rotatably arranged together between two floor plates. The two rotating shaft rods are arranged symmetrically front and back. A swing plate is fixedly installed on the side of the rotating shaft rod away from the middle of the drone. A sliding plate is slidably arranged on the swing plate along its length direction. A second grooved pulley is rotatably arranged on the side of the sliding plate away from the rotating shaft rod. The wire-pulling mechanism further includes a moving component for moving the position of the second grooved pulley.

[0008] As a preferred technical solution of the present invention, the middle part of the moving rod has an inclined structure that gradually inclines away from the middle of the drone from bottom to top, and the upper part of the moving rod has an inclined structure that gradually inclines towards the middle of the floor plate from bottom to top. A guide plate is fixedly installed on the side of the moving rod close to the middle of the floor plate. The upper end of the guide plate corresponds to the side position of the first grooved pulley. A protective plate is fixedly installed on the rear side of the upper part of the front moving rod, and the lower end of the protective plate corresponds to the rear side position of the first grooved pulley.

[0009] As a preferred technical solution of the present invention, the locking component includes a right-angled trapezoidal plate fixedly installed on the upper part of the side of the moving rod away from the middle of the drone. The two right-angled trapezoidal plates at the same floor plate are arranged symmetrically front and back. A U-shaped frame is slidably arranged vertically on the upper part of the rear moving rod. A driving spring is arranged between the U-shaped frame and the corresponding moving rod. A clamping groove with the same shape as the two abutting right-angled trapezoidal plates is formed on the U-shaped frame.

[0010] As a preferred technical solution of the present invention, an L-shaped support plate is fixedly installed on the rear side of the U-shaped frame. A square guide rod is fixedly installed on the side of the rear moving rod away from the middle of the drone. An ear seat block is slidably arranged vertically on the side of the square guide rod away from the middle of the drone. A driving roller is rotatably arranged on the front part of the ear seat block. A connecting rod is fixedly installed on the ear seat block. The telescopic section of the connecting rod is fixedly connected to the L-shaped support plate.

[0011] As a preferred technical solution of the present invention, the two second grooved pulleys are arranged centrosymmetrically with respect to the center position of the drone. The side surface of the second grooved pulley is embedded inside the corresponding sliding plate. The positions of the rope grooves of the second grooved pulleys correspond to the sides of the two sliding plates close to each other. A two-way electric push rod is fixedly installed at the common end of the fixed support plates close to the center position of the drone. A T-shaped plate is fixedly installed between the two corresponding moving rods on the left and right. The two telescopic sections of the two-way electric push rod are respectively fixedly connected to the two T-shaped plates. The two ends of the horizontal section of the T-shaped plate are respectively fixedly connected to the two corresponding moving rods.

[0012] As a preferred technical solution of the present invention, the moving component includes a reversing gear fixedly installed on the left side of the rotating shaft rod. The two reversing gears are meshed. A driving rotating tube is rotatably sleeved on the outer side of the middle part of the rotating shaft rod. A steel wire rope is fixedly connected to the driving rotating tube. One end of the steel wire rope away from the driving rotating tube is fixedly connected to the corresponding sliding plate.

[0013] As a preferred technical solution of the present invention, an incomplete gear is fixedly installed on the right side of the rotating shaft on the rear side, and the teeth of the incomplete gear occupy one quarter of its circular surface. A rack is slidingly provided on the left side of the right floor panel along the front-to-back direction, and the rack is meshed with the incomplete gear. The right floor panel and the rack are commonly connected to an electric push rod No. 1.

[0014] As a preferred technical solution of the present invention, a reduction motor is fixedly installed on the left front part of the floor panel on the rear side, the output shaft of the reduction motor is connected to the active rotating pipe on the front side through a belt, and the middle part of the active rotating pipe on the front side is connected to the active rotating pipe on the rear side through a synchronous belt.

[0015] As a preferred technical solution of the present invention, the sliding plate on the right side is provided with a through groove running through the front and rear, a track plate is fixedly installed on the rear part of the sliding plate on the right side, the upper part of the track plate is L-shaped, and the lower part of the track plate is an inclined structure which gradually tilts forward from top to bottom, a No. 2 electric push rod is fixedly installed on the lower side of the longitudinal section of the track plate, a follow-up frame is fixedly installed on the lower part of the telescopic section of the No. 2 electric push rod, a moving square rod is provided inside the follow-up frame for sliding back and forth, the rear end of the moving square rod is abutted against the front side surface of the track plate, a limiting roller is provided at the rear part of the moving square rod through a driven bracket for rotation, the limiting roller is located on the rear side of the track plate, and a clamping roller is provided for rotation on the front side of the moving square rod.

[0016] As a preferred technical solution of the present invention, a mounting bracket is fixedly installed on the lower part of the fixed support plate, cameras are fixedly installed on the lower part of the mounting bracket and the upper part of the drone, an actuator motor is fixedly installed on the rear side of the right sliding plate, and the output shaft of the actuator motor is fixedly connected to the No. 2 groove wheel at the corresponding position.

[0017] The beneficial effects of the present invention are as follows: 1. The present invention adopts a movable rod to drive the No. 1 groove wheel thereon to hang the drone on the overhead transmission line, so that the rotor thereon can be closed when the drone reaches the inspection position, thereby greatly reducing the power consumption of the drone, increasing the effective working time of the drone, and thus improving the efficiency of the inspection. By hanging the drone, it is possible to prevent the drone from being blown down by sudden strong winds in mountainous areas, thereby ensuring the safety of the drone.

[0018] 2. The present invention uses a mobile component to drive the second groove wheel to pull the overhead power transmission line on the lower side of the UAV, and cooperates with the first groove wheel to fix the UAV between the two overhead power transmission lines, thereby preventing sudden strong winds in mountainous areas from interfering with the position of the UAV, and then enabling the UAV to move stably along the trajectory of the overhead power transmission line, ensuring that the UAV can effectively inspect the overhead power transmission line.

[0019] III. When the first grooved pulley of the present invention is hung on an overhead transmission line, the locking assembly can automatically and stably lock the two moving rods into a whole, thereby preventing the unmanned aerial vehicle from falling off the overhead transmission line and further ensuring the safety of the unmanned aerial vehicle.

[0020] IV. The present invention uses an actuating motor to drive the second grooved pulley to rotate, so that the second grooved pulley can drive the unmanned aerial vehicle to move along the overhead transmission line, enabling the unmanned aerial vehicle to inspect各处 of the overhead transmission line. Moreover, by driving the moving square rod to move along the track of the track plate through the second electric push rod, the pressing roller can press and limit the overhead transmission line on the second grooved pulley, ensuring the friction force of the second grooved pulley on the overhead transmission line and enabling the unmanned aerial vehicle to move stably, further ensuring the effective inspection of the overhead transmission line by the unmanned aerial vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the drawings and embodiments.

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 is a schematic diagram of the structure of the unmanned aerial vehicle, support rod and floor in the present invention.

[0024] Figure 3 is a schematic diagram of the structure of the floor, fixed support plate, fixed support plate and wire hanging mechanism in the present invention.

[0025] Figure 4 is a partial cross-sectional view of the moving rod, right-angled trapezoidal plate and C-shaped frame in the present invention.

[0026] Figure 5 is a schematic diagram of the structure of the floor and wire pulling mechanism in the present invention.

[0027] Figure 6 is a schematic diagram of the structure of the floor and part of the wire pulling mechanism in the present invention.

[0028] Figure 7 is a schematic diagram of the structure of the swing plate, sliding plate, incomplete gear, rack, first electric push rod, track plate, second electric push rod, follower frame, moving square rod, driven bracket, limiting roller and pressing roller in the present invention.

[0029] Figure 8 is a schematic diagram of the structure of the unmanned aerial vehicle, support rod, floor, fixed support plate, mounting bracket and camera in the present invention.

[0030] In the figure: 1. UAV; 2. Support rod; 3. Landing plate; 4. Fixed support plate; 5. Wire hanging mechanism; 6. Wire pulling mechanism; 7. Mounting bracket; 8. Camera; 51. Moving rod; 52. No. 1 groove wheel; 53. Locking assembly; 54. Two-way electric push rod; 55. T-shaped plate; 61. Rotating shaft rod; 62. Swing plate; 63. Sliding plate; 64. No. 2 groove wheel; 65. Moving assembly; 66. Track plate; 511. Guide plate; 512. Protective plate; 531. Right-angle trapezoidal plate; 532. T-shaped frame; 533, positioning groove; 534, L-shaped support plate; 535, square guide rod; 536, ear seat block; 537, active roller; 538, connecting rod; 631, executive motor; 651, reversing gear; 652, active rotating tube; 653, wire rope; 654, incomplete gear; 655, rack; 656, No. 1 electric push rod; 657, reduction motor; 661, No. 2 electric push rod; 662, follow-up frame; 663, moving square rod; 664, driven bracket; 665, limit roller; 666, clamping roller. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the art or the product specifications are used.

[0032] See also Figure 1 and Figure 2 A drone inspection device for overhead power transmission lines includes a drone 1, a landing plate 3 is fixedly installed on the lower part of the drone 1 through a support rod 2 in a left-right symmetrical manner, a fixed support plate 4 is fixedly installed on the upper part of the landing plate 3, and the fixed support plate 4 is in an inclined structure gradually inclined from bottom to top toward the middle part of the drone 1, and a hanging mechanism 5 for hanging on the power line is jointly provided on the two landing plates 3 and the fixed support plate 4, and a pulling mechanism 6 for tightening the power line is jointly provided on the two landing plates 3.

[0033] When it is necessary to inspect the overhead power transmission lines, the operator operates the drone 1 to fly to the position of the overhead power transmission lines, so that the drone 1 is located between the upper and lower overhead power transmission lines. The operator moves the drone 1 upward, so that the drone 1 drives the wire hanging mechanism 5 to move to the position of the upper overhead power transmission line. Then the wire hanging mechanism 5 covers an upper overhead power transmission line inside it, and then stops rotating the rotor of the drone 1, so that the drone 1 moves downward under the action of gravity.

[0034] At the same time, the drone 1 drives the wire hanging mechanism 5 to lean against an overhead transmission line on the upper side, so that the drone 1 is hung on an overhead transmission line on the upper side through the wire hanging mechanism 5, and then the overhead transmission line on the lower side is limited and pulled through the wire pulling mechanism 6, so that the drone 1 is limited between the two upper and lower overhead transmission lines through the wire hanging mechanism 5 and the wire pulling mechanism 6, and then the wire pulling mechanism 6 drives the drone 1 to move along the overhead transmission line, so that the drone 1 starts to inspect the overhead transmission line.

[0035] See also Figure 1 , Figure 2 and Figure 3 The hanging wire mechanism 5 includes a moving rod 51 symmetrically arranged on the side of the landing floor 3 away from the middle of the drone 1. The middle part of the moving rod 51 is an inclined structure that is gradually inclined from bottom to top toward the direction away from the middle of the drone 1, and the upper part of the moving rod 51 is an inclined structure that is gradually inclined from bottom to top toward the middle of the landing floor 3. The moving rod 51 is slidably connected with the landing floor 3 along the front and rear directions. The middle part of the landing floor 3 is penetrated by sliding grooves for the lower part of the moving rod 51 to slide. A No. 1 groove wheel 52 is rotatably arranged on the rear side of the upper part of the moving rod 51 located on the front side. A two-way electric push rod 54 is fixedly installed at one end of the fixed support plate 4 close to the center position of the drone 1. A T-shaped plate 55 is fixedly installed between the moving rods 51 at the corresponding positions on the left and right. The two telescopic sections of the two-way electric push rod 54 are respectively fixedly connected to the two T-shaped plates 55, and the two ends of the horizontal section of the T-shaped plate 55 are respectively fixedly connected to the two moving rods 51 at the corresponding positions.

[0036] When the UAV 1 approaches an overhead power transmission line on the upper side, the UAV 1 drives the landing plate 3 to move upward synchronously through the support rod 2, and the landing plate 3 moves synchronously through the moving rod 51, so that the overhead power transmission line on the upper side is simultaneously located between the moving rods 51 on the front and rear sides. When the moving rod 51 drives the No. 1 groove wheel 52 to move to the upper side of the overhead power transmission line on the upper side, the operator controls the UAV 1 to hover.

[0037] Then the operator simultaneously retracts the two telescopic sections of the bidirectional electric push rod 54, so that the bidirectional electric push rod 54 drives the moving rods 51 on the front and rear sides to approach each other through the T-shaped plate 55, so that the upper sides of the moving rods 51 at corresponding positions on the front and rear sides are pressed against each other. At this time, the moving rod 51 on the front side drives the No. 1 groove wheel 52 to move to just above an overhead transmission line on the upper side. At the same time, the overhead transmission line on the upper side is limited by the two moving rods 51 combined together, and then the rotor of the drone 1 is stopped, so that the drone 1 falls under the action of gravity.

[0038] See also Figure 1 and Figure 3, on one side of the moving rod 51 close to the middle of the floor plate 3, a guide plate 511 is fixedly installed. The upper end of the guide plate 511 corresponds to the side position of the first grooved pulley 52. On the rear side of the upper part of the front moving rod 51, a protective plate 512 is fixedly installed. The lower end of the protective plate 512 corresponds to the rear side position of the first grooved pulley 52.

[0039] When the drone 1 approaches an overhead transmission line on the upper side, the moving rod 51 blocks the overhead transmission line through the protective plate 512 of the guide plate 511 covering the upper part of the first grooved pulley 52, so as to prevent the overhead transmission line on the upper side from being placed on the upper side of the first grooved pulley 52 when the drone 1 ascends. And through the inclined guide plate 511, when the guide plate 511 contacts the overhead transmission line, the reaction force of the overhead transmission line on the guide plate 511 can push the drone 1 to avoid the overhead transmission line.

[0040] When the drone 1 falls under the action of gravity, through the blocking and guiding of the overhead transmission line by the guide plate 511, the moving rod 51 drives the first grooved pulley 52 to fall onto an overhead transmission line on the upper side, so that the drone 1 is hung on an overhead transmission line on the upper side through the first grooved pulley 52.

[0041] Refer to Figure 1 、 Figure 3 and Figure 4 , the wire hanging mechanism 5 further includes a locking component 53 for locking the two moving rods 51 on the same floor plate 3 together. The locking component 53 includes a right-angled trapezoidal plate 531 fixedly installed on the upper part of the side of the moving rod 51 away from the middle of the drone 1. The two right-angled trapezoidal plates 531 at the same floor plate 3 are arranged symmetrically front and back. On the upper part of the rear moving rod 51, a U-shaped frame 532 is slidably arranged in the vertical direction. A driving spring is arranged between the U-shaped frame 532 and the corresponding moving rod 51. A clamping groove 533 with the same shape as the two abutting right-angled trapezoidal plates 531 is formed on the U-shaped frame 532.

[0042] Refer to Figure 3 and Figure 4 , an L-shaped support plate 534 is fixedly installed on the rear side of the U-shaped frame 532. A square guide rod 535 is fixedly installed on the side of the rear moving rod 51 away from the middle of the drone 1. An ear seat block 536 is slidably arranged in the vertical direction on the side of the square guide rod 535 away from the middle of the drone 1. A driving roller 537 is rotatably arranged at the front part of the ear seat block 536. A connecting rod 538 is fixedly installed on the ear seat block 536. The telescopic section of the connecting rod 538 is fixedly connected to the L-shaped support plate 534.

[0043] In the initial state, the active spring pushes the U-shaped frame 532 to be in the lower position, so that the connecting rod 538 drives the active roller 537 to be located below the first grooved pulley 52 through the ear seat block 536. When the moving rods 51 at two corresponding front and rear positions are combined together, the long bottom edges of the right trapezoidal plates 531 on the moving rods 51 abut against each other, so that the two right trapezoidal plates 531 are combined synchronously.

[0044] When the first grooved pulley 52 is hung on an overhead transmission line on the upper side, the overhead transmission line on the upper side first contacts the active roller 537, so that the overhead transmission line on the upper side drives the ear seat block 536 to move upward relative to the square guide rod 535 through the pushing of the reaction force on the active roller 537. The ear seat block 536 drives the U-shaped frame 532 to move upward through the connecting rod 538 and the L-shaped support plate 534 in sequence, so that the clamping groove 533 on the U-shaped frame 532 is clamped outside the two combined right trapezoidal plates 531, thereby preventing the two combined right trapezoidal plates 531 from separating, so as to lock the two moving rods 51 into a whole, ensuring that the drone 1 can always be hung on an overhead transmission line on the upper side.

[0045] Refer to Figure 1 、 Figure 5 and Figure 6 As shown in, the cable pulling mechanism 6 includes two rotating shaft rods 61 that are jointly and rotatably arranged between the two floor plates 3. The two rotating shaft rods 61 are arranged symmetrically front and back. A swing plate 62 is fixedly installed on the side of the rotating shaft rod 61 away from the middle of the drone 1. A sliding plate 63 is slidably arranged on the swing plate 62 along its length direction. A second grooved pulley 64 is rotatably arranged on the side of the sliding plate 63 away from the rotating shaft rod 61. The cable pulling mechanism 6 further includes a moving component 65 for moving the position of the second grooved pulley 64. The two second grooved pulleys 64 are arranged symmetrically about the central position of the drone 1. The side surface of the second grooved pulley 64 is embedded inside the sliding plate 63 at the corresponding position. The sides of the two sliding plates 63 close to each other correspond to the rope groove positions of the second grooved pulley 64.

[0046] Refer to Figure 1 、 Figure 5 、 Figure 6 and Figure 7The moving assembly 65 includes a reversing gear 651 fixedly mounted on the left side of the rotating shaft 61. The two reversing gears 651 are meshed. An active rotating tube 652 is rotatably sleeved on the outer side of the middle part of the rotating shaft 61. A steel wire 653 is fixedly connected to the active rotating tube 652. One end of the steel wire 653 away from the active rotating tube 652 is fixedly connected to the sliding plate 63 at the corresponding position. An incomplete gear 654 is fixedly mounted on the right side of the rotating shaft 61 at the rear side. The teeth of the incomplete gear 654 account for a circular A quarter of the surface, a rack 655 is slidably provided on the left side of the right floor panel 3 along the front-to-back direction, the rack 655 is meshed with the incomplete gear 654, the right floor panel 3 and the rack 655 are commonly connected with a No. 1 electric push rod 656, and a reduction motor 657 is fixedly installed on the front left side of the rear floor panel 3, the output shaft of the reduction motor 657 is connected to the active rotating pipe 652 on the front side through a belt, and the middle part of the active rotating pipe 652 on the front side is connected to the active rotating pipe 652 on the rear side through a synchronous belt.

[0047] In the initial state, the swing plates 62 on both sides are in a horizontal state, that is, the swing plate 62 on the left is located in front of the rotating shaft 61, and the swing plate 62 on the right is located at the rear of the rotating shaft 61, so that the swing plate 62 drives the second groove wheel 64 through the sliding plate 63 to be also located at the front and rear sides of the rotating shaft 61, and the sliding plate 63 is at a position away from the rotating shaft 61. When the No. 1 groove wheel 52 is hung on an overhead transmission line on the upper side, the telescopic section of the No. 1 electric push rod 656 is extended, so that the No. 1 electric push rod 656 drives the rack 655 to move backward, and the rack 655 drives the rear rotating shaft 61 to rotate through the incomplete gear 654. The rear rotating shaft 61 drives the front rotating shaft 61 to rotate synchronously in the opposite direction through the reversing gear 651, so that the rotating shaft 61 drives the swing plate 62 to rotate downward.

[0048] The swing plate 62 drives the second groove wheel 64 to rotate synchronously through the sliding plate 63. When the swing plate 62 rotates downward to a vertical state, the two sliding plates 63 clamp an overhead transmission line on the lower side, and at the same time, the second groove wheel 64 is located directly below an overhead transmission line on the lower side. Then, the reduction motor 657 is started to drive the active rotating tube 652 on the front side to rotate, and the active rotating tube 652 on the front side drives the active rotating tube 652 on the rear side to rotate synchronously, so that the active rotating tube 652 pulls the sliding plate 63 at the corresponding position to move vertically upward by winding the wire rope 653 thereon, and the sliding plate 63 drives the second groove wheel 64 thereon to move against an overhead transmission line on the lower side, so that an overhead transmission line on the lower side is embedded in the rope groove of the second groove wheel 64, so that the drone 1 is fixed between the upper and lower overhead transmission lines through the first groove wheel 52 and the second groove wheel 64.

[0049] See also Figure 6 and Figure 7A through groove running through the front and back is provided on the sliding plate 63 on the right side, and a track plate 66 is fixedly installed on the rear part of the sliding plate 63 on the right side. The upper part of the track plate 66 is L-shaped, and the lower part of the track plate 66 is an inclined structure gradually tilted forward from top to bottom. A No. 2 electric push rod 661 is fixedly installed on the lower side of the longitudinal section of the track plate 66, and a follow-up frame 662 is fixedly installed on the lower part of the telescopic section of the No. 2 electric push rod 661. A moving square rod 663 is slidingly arranged inside the follow-up frame 662. The rear end of the moving square rod 663 abuts against the front side of the track plate 66. A limiting roller 665 is rotatably arranged on the rear part of the moving square rod 663 through a driven bracket 664. The limiting roller 665 is located on the rear side of the track plate 66, and a clamping roller 666 is rotatably arranged on the front side of the moving square rod 663.

[0050] When the No. 2 slot wheel 64 moves to abut against an overhead transmission line on the lower side, the telescopic section of the No. 2 electric push rod 661 is extended to drive the follower frame 662 to move downward, and the follower frame 662 drives the clamping roller 666 to move downward synchronously through the moving square rod 663. When the moving square rod 663 moves along the track of the track plate 66 to its inclined section, the track plate 66 pushes the moving square rod 663 forward, so that the moving square rod 663 drives the clamping roller 666 to move forward to above the No. 2 slot wheel 64 on the right side, so that the clamping roller 666 squeezes an overhead transmission line on the lower side and limits it on the No. 2 slot wheel 64 on the right side, thereby avoiding slippage between the No. 2 slot wheel 64 on the right side and the overhead transmission line.

[0051] See also Figure 1 and Figure 8 The lower part of the fixed support plate 4 is jointly fixedly installed with a mounting bracket 7, the lower part of the mounting bracket 7 and the upper part of the UAV 1 are both fixedly installed with a camera 8, and the rear side of the right sliding plate 63 is fixedly installed with an execution motor 631, and the output shaft of the execution motor 631 is fixedly connected to the No. 2 groove wheel 64 at the corresponding position.

[0052] When the clamping roller 666 is squeezed on the overhead transmission line, the execution motor 631 is started to drive the No. 2 slot wheel 64 on the right to rotate, so that the No. 2 slot wheel 64 drives the drone 1 to move along the length direction of the overhead transmission line. At the same time, the drone 1 uses the two cameras 8 on it to shoot the upper and lower overhead transmission lines, so that the drone 1 starts to inspect the overhead transmission lines.

[0053] When inspecting overhead power lines, the present invention also includes the following steps: In the first step, the operator operates the drone 1 to fly to the position of the overhead power line so that the drone 1 is located between the upper and lower overhead power lines. The operator moves the drone 1 upward so that the drone 1 drives the moving rods 51 on the front and rear sides to move to the outside of the upper overhead power line.

[0054] In the second step, the operator simultaneously contracts the two telescopic segments of the bidirectional electric push rod 54, causing the upper sides of the moving rods 51 at corresponding positions on the front and rear sides to abut against each other. Subsequently, the rotation of the rotors of the drone 1 is stopped, causing the moving rods 51 to drive the first grooved pulley 52 to fall onto an overhead transmission line on the upper side. At the same time, the overhead transmission line, through the reaction force on the driving roller 537, pushes the clamping groove 533 on the C-shaped frame 532 to be clamped outside the two combined right trapezoidal plates 531, so as to lock the two moving rods 51 into a whole.

[0055] In the third step, the telescopic segment of the first electric push rod 656 is extended, causing the rotating shaft rod 61 to drive the swinging plate 62 to rotate downward, so that the second grooved pulley 64 moves to directly below an overhead transmission line on the lower side. Subsequently, the reduction motor 657 is started to drive the driving rotating pipe 652 to rotate. The driving rotating pipe 652 winds the steel wire rope 653 thereon to pull the corresponding sliding plate 63 to move vertically upward, causing the second grooved pulley 64 to move to abut against an overhead transmission line on the lower side, and further causing the drone 1 to be fixed between the upper and lower overhead transmission lines through the first grooved pulley 52 and the second grooved pulley 64.

[0056] In the fourth step, the telescopic segment of the second electric push rod 661 is extended to drive the follower frame 662 to move downward, causing the moving square rod 663 to drive the pressing roller 666 to move forward to above the second grooved pulley 64 on the right side, so that the pressing roller 666 presses and limits an overhead transmission line on the lower side on the second grooved pulley 64 on the right side, thus preventing the second grooved pulley 64 on the right side from slipping with the overhead transmission line.

[0057] In the fifth step, the actuating motor 631 is started to drive the second grooved pulley 64 on the right side to rotate, causing the second grooved pulley 64 to drive the drone 1 to move along the length direction of the overhead transmission line. At the same time, the drone 1 takes pictures of the upper and lower overhead transmission lines through the two cameras 8 thereon, so that the drone 1 starts to inspect the overhead transmission lines.

[0058] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention, and still be covered by the protection scope of the present invention.

Claims

1. An overhead power transmission line drone inspection device, comprising a drone (1), characterized in that: On the lower part of the drone (1), floor plates (3) are symmetrically and fixedly installed on the left and right through support rods (2). On the upper part of the floor plates (3), fixed support plates (4) are fixedly installed. The fixed support plates (4) are of an inclined structure that gradually inclines upward from the lower part towards the middle of the drone (1). A wire hanging mechanism (5) for hanging on the transmission line is jointly arranged on the two floor plates (3) and the fixed support plates (4). A wire tensioning mechanism (6) for tensioning the transmission line is jointly arranged on the two floor plates (3). The wire hanging mechanism (5) includes moving rods (51) symmetrically arranged in the front and back on the side of the floor plate (3) far from the middle of the drone (1). The moving rods (51) are slidably connected to the floor plate (3) in the front-back direction. A chute for the lower part of the moving rod (51) to slide is vertically penetrated through the middle of the floor plate (3). A first grooved pulley (52) is rotatably arranged on the rear side of the upper part of the front moving rod (51). The wire hanging mechanism (5) further includes a locking component (53) for locking the two moving rods (51) on the same floor plate (3) together. The wire tensioning mechanism (6) includes two rotating shaft rods (61) jointly rotatably arranged between the two floor plates (3). The two rotating shaft rods (61) are arranged symmetrically in the front and back. A swing plate (62) is fixedly installed on the side of the rotating shaft rod (61) far from the middle of the drone (1). A sliding plate (63) is slidably arranged on the swing plate (62) along its length direction. A second grooved pulley (64) is rotatably arranged on the side of the sliding plate (63) far from the rotating shaft rod (61). The wire tensioning mechanism (6) further includes a moving component (65) for moving the position of the second grooved pulley (64).

2. The overhead power transmission line drone inspection equipment according to claim 1, characterized in that: The middle part of the moving rod (51) is of an inclined structure that gradually inclines upward from the lower part towards the direction far from the middle of the drone (1). The upper part of the moving rod (51) is of an inclined structure that gradually inclines upward from the lower part towards the direction close to the middle of the floor plate (3). A guide plate (511) is fixedly installed on the side of the moving rod (51) close to the middle of the floor plate (3). The upper end of the guide plate (511) corresponds to the side position of the first grooved pulley (52). A protective plate (512) is fixedly installed on the rear side of the upper part of the front moving rod (51). The lower end of the protective plate (512) corresponds to the rear side position of the first grooved pulley (52).

3. The overhead power transmission line drone inspection equipment according to claim 1, characterized in that: The locking component (53) includes a right-angled trapezoidal plate (531) fixedly installed on the upper part of the side of the moving rod (51) far from the middle of the drone (1). The two right-angled trapezoidal plates (531) at the same floor plate (3) are arranged symmetrically in the front and back. A U-shaped frame (532) is slidably arranged in the vertical direction on the upper part of the rear moving rod (51). A driving spring is arranged between the U-shaped frame (532) and the corresponding moving rod (51). A clamping groove (533) with the same shape as the two abutting right-angled trapezoidal plates (531) is formed on the U-shaped frame (532).

4. The overhead power transmission line drone inspection equipment according to claim 3, characterized in that: An L-shaped support plate (534) is fixedly installed at the rear side of the U-shaped frame (532). A square guide rod (535) is fixedly installed on the side of the rear moving rod (51) away from the middle of the drone (1). An ear seat block (536) is slidably arranged in the vertical direction on the side of the square guide rod (535) away from the middle of the drone (1). A driving roller (537) is rotatably arranged at the front part of the ear seat block (536). A connecting rod (538) is fixedly installed on the ear seat block (536). The telescopic section of the connecting rod (538) is fixedly connected to the L-shaped support plate (534).

5. The overhead power transmission line drone inspection equipment according to claim 1, characterized in that: The two second grooved pulleys (64) are arranged symmetrically about the center position of the drone (1). The side surface of the second grooved pulley (64) is embedded inside the corresponding sliding plate (63). The positions of the rope grooves of the second grooved pulleys (64) correspond to the sides of the two sliding plates (63) close to each other. One end of the fixed support plate (4) close to the center position of the drone (1) is jointly fixedly installed with a two-way electric push rod (54). A T-shaped plate (55) is jointly fixedly installed between the left and right corresponding moving rods (51). The two telescopic sections of the two-way electric push rod (54) are respectively fixedly connected to the two T-shaped plates (55). The two ends of the horizontal section of the T-shaped plate (55) are respectively fixedly connected to the corresponding two moving rods (51).

6. The overhead power transmission line drone inspection equipment according to claim 1, characterized in that: The moving assembly (65) includes a reversing gear (651) fixedly installed on the left side of the rotating shaft rod (61). The two reversing gears (651) are meshed. A driving rotating pipe (652) is rotatably sleeved on the outer side of the middle part of the rotating shaft rod (61). A steel wire rope (653) is fixedly connected to the driving rotating pipe (652). One end of the steel wire rope (653) away from the driving rotating pipe (652) is fixedly connected to the corresponding sliding plate (63).

7. The overhead power transmission line drone inspection equipment according to claim 6, characterized in that: An incomplete gear (654) is fixedly installed on the right side of the rear rotating shaft rod (61). The teeth of the incomplete gear (654) account for one-fourth of its circular surface. A rack (655) is slidably arranged in the front-back direction on the left side of the right landing plate (3). The rack (655) is meshed with the incomplete gear (654). The right landing plate (3) and the rack (655) are jointly connected with a first electric push rod (656).

8. The overhead power transmission line drone inspection equipment according to claim 6, characterized in that: A reduction motor (657) is fixedly installed at the front part of the left side of the rear landing plate (3). The output shaft of the reduction motor (657) is connected to the front driving rotating pipe (652) through a belt. The middle part of the front driving rotating pipe (652) is connected to the rear driving rotating pipe (652) through a synchronous belt.

9. The overhead power transmission line drone inspection equipment according to claim 1, characterized in that: The sliding plate (63) on the right side is provided with a through groove running through the front and back, and a track plate (66) is fixedly installed at the rear of the sliding plate (63) on the right side. The upper part of the track plate (66) is L-shaped, and the lower part of the track plate (66) is an inclined structure that gradually tilts forward from top to bottom. A No. 2 electric push rod (661) is fixedly installed on the lower side of the longitudinal section of the track plate (66), and a follower frame (662) is fixedly installed on the lower part of the telescopic section of the No. 2 electric push rod (661). A moving square rod (663) is slidably arranged inside the follower frame (662) to slide forward and backward. The rear end of the moving square rod (663) abuts against the front side of the track plate (66), and a limiting roller (665) is rotatably arranged at the rear of the moving square rod (663) through a driven bracket (664). The limiting roller (665) is located on the rear side of the track plate (66), and a clamping roller (666) is rotatably arranged on the front side of the moving square rod (663).

10. The overhead power transmission line drone inspection equipment according to claim 1, characterized in that: A mounting bracket (7) is fixedly mounted on the lower part of the fixed support plate (4), a camera (8) is fixedly mounted on the lower part of the mounting bracket (7) and the upper part of the drone (1), an execution motor (631) is fixedly mounted on the rear side of the right sliding plate (63), and an output shaft of the execution motor (631) is fixedly connected to a No. 2 groove wheel (64) at a corresponding position.

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