An inspection device for overhead cables

Abstract

This invention discloses an inspection device for overhead cables, comprising: a flight body equipped with an obstacle avoidance camera and a sub-controller; an inspection structure mounted on the flight body, the inspection structure including an inspection camera and an inspection drive assembly connected to the inspection camera to drive the inspection camera to rotate around the cable for imaging; and a marking structure mounted on the flight body, the marking structure including a marking component and a marking drive assembly connected to the marking component, the marking component marking the cable circumferentially; the obstacle avoidance camera, inspection camera, inspection drive assembly, marking component, and marking drive assembly are each connected to the sub-controller. This invention uses an obstacle avoidance camera to identify obstacles, uses the inspection drive assembly to control the rotation of the inspection camera for comprehensive imaging of the cable, and uses the marking component to mark the cable circumferentially, making the markings easier for maintenance personnel below to see.

Description

Technical Field

[0001] This invention relates to the field of cable inspection technology, and in particular to an inspection device for overhead cables. Background Technology

[0002] To ensure the safe and stable operation of overhead cables, they need to be inspected regularly during application to identify aging, damage, overheating, and other issues, so that repair or replacement measures can be taken in advance. To save manpower, most existing overhead cable inspection devices use cameras mounted on cable robots to inspect the cables. For example, Chinese Patent CN116054018A discloses a parallel inspection device for overhead cables in power systems, which relates to the field of cable inspection devices. It includes: a frame; a moving mechanism installed in the middle of the upper surface of the frame, and a cable fault testing device installed on the lower inner side of the moving mechanism; the moving mechanism is mounted on the overhead cable; and a painting mechanism installed on the right side of the frame.

[0003] However, in practical applications, the above-mentioned device still has the following shortcomings: First, because there are obstacles such as insulators, clamps, and vibration dampers on the cable, and the moving mechanism of the device cannot cross these obstacles, the device is prone to jamming when encountering obstacles. Second, the device sprays paint directly on the upper side of the overhead cable during marking, making it difficult for maintenance personnel below to see the paint on the upper side of the overhead cable, and the painting process also easily causes paint splattering and environmental pollution. In addition, because the inspection camera is in a fixed position, it can only take fixed pictures of both sides of the cable, which is not thorough enough in checking for aging, damage, overheating, etc., resulting in poor practicality. Furthermore, it can only check for aging, damage, and overheating, and cannot perform live detection of overhead lines, making its detection function too limited. Summary of the Invention

[0004] To overcome the aforementioned shortcomings of the prior art, the purpose of this invention is to provide an inspection device for overhead cables that can avoid obstacles and prevent the device from getting stuck when encountering obstacles. It can also rotate the camera around the overhead cable to take pictures, making the inspection of aging, damage, overheating and other phenomena more thorough. It can perform live detection of overhead lines, making the detection function more comprehensive. Furthermore, it can mark the problems of aging, damage, overheating and other phenomena in a circumferential manner, making it easier for maintenance personnel below to see them. It also avoids the problem of paint splattering and polluting the environment.

[0005] The technical solution adopted by this invention to solve its technical problem is: an inspection device for overhead cables, comprising:

[0006] The main body of the aircraft is equipped with an obstacle avoidance camera and a sub-controller;

[0007] An inspection structure is mounted on the flight body. The inspection structure includes an inspection camera and an inspection drive assembly. The inspection drive assembly is connected to the inspection camera to drive the inspection camera to rotate around the cable to take pictures.

[0008] A marking structure, mounted on the flight body, includes a marking component and a marking drive component, the marking drive component being connected to the marking component, the marking component marking the cable circumferentially;

[0009] The obstacle avoidance camera, inspection camera, inspection drive component, marking component, and marking drive component are each connected to the sub-controller.

[0010] As a further improvement of the present invention: the inspection drive assembly includes a frame, a rotating ring and an inspection drive component. Both the frame and the rotating ring are provided with openings. The inspection camera is mounted on the rotating ring. The rotating ring is rotatably connected to the frame. The inspection drive component is connected to the rotating ring to drive the rotating ring to rotate the inspection camera around the cable.

[0011] As a further improvement of the present invention: a rotating wheel and a drive wheel are installed on the frame along the rotation direction of the rotating ring, a drive wheel is connected to the output shaft of the inspection drive component, an arc groove is provided on the rotating ring, and the drive wheel, the rotating wheel, the drive wheel and the arc groove are connected by a belt.

[0012] As a further improvement of the present invention: the marking assembly includes a marking base, an electric push rod, a marking slider, an arc-shaped connecting rod, and marking clamps. The electric push rod is mounted on the marking base. The top ends of the two arc-shaped connecting rods are symmetrically rotatably connected to the marking slider. The bottom ends of the two arc-shaped connecting rods are respectively connected to marking clamps. One end of the marking clamp is provided with a rotating shaft. The rotating shaft is rotatably connected to the lower end of the marking base. The marking clamp is provided with marking sponge strips. The electric push rod drives the marking slider to move linearly, causing the arc-shaped connecting rod to drive the marking sponge strips on the two marking clamps to rotate around the rotating shaft and move closer or further apart from each other.

[0013] As a further improvement of the present invention: the marking drive assembly includes a marking drive component, a paint spray box and a transmission mechanism. The paint spray box is provided with a paint spray opening, and the paint spray box is provided with a nozzle with the spraying end facing the paint spray opening. The marking drive component is connected to the marking assembly through the transmission mechanism, so that the marking assembly moves back and forth between the paint spray opening and the position for performing the marking action.

[0014] As a further improvement of the present invention: the transmission mechanism includes an L-shaped marker frame, a connecting frame, a marker link one, a marker link two, and a marker link three. The connecting frame is disposed on the horizontal part of the L-shaped marker frame, and a marker driving component is installed on the connecting frame. A sliding seat is rotatably connected to the vertical part of the L-shaped marker frame, and a sliding rod is slidably connected in the sliding seat. The sliding rod is connected to the marker assembly. One end of the marker link one is rotatably hinged to the horizontal part of the L-shaped marker frame, and the other end of the marker link one is rotatably hinged to the marker assembly. The marker driving component drives one end of the marker link two, and the other end of the marker link two is rotatably hinged to the marker link one through the marker link three.

[0015] As a further improvement of the present invention: the paint spraying box is provided with a paint spraying chamber, the paint spraying chamber is connected to the spray nozzle, the top of the paint spraying box is fixed with a paint tank, the paint spraying chamber and the paint tank are connected by a paint pipe, and a paint pump is provided on the paint pipe.

[0016] As a further improvement of the present invention: a live-line detection assembly is installed on the flight body. The live-line detection assembly includes a second electric push rod, a live-line detection frame, and a main unit of a live-line insulation defect detector. The main unit of the live-line insulation defect detector is fixed on the live-line detection frame. The second electric push rod is connected to the live-line detection frame. The main unit of the live-line insulation defect detector includes a housing and a partial discharge sensor and a data processing module disposed on the housing. The housing has an opening. The partial discharge sensor is connected to the data processing module. The data processing module is connected to a sub-controller.

[0017] As a further improvement of the present invention: clamping blocks are provided on both sides of the main body of the live insulation defect detector, a detection clamping screw is installed on the live detection frame, the detection clamping screw is connected to the detection clamping motor, and the detection clamping screw is provided with two external threads one and two with opposite directions of rotation. The clamping blocks are respectively installed on the detection clamping screw through external threads one and external threads two.

[0018] As a further improvement of the present invention: the belt is provided with external teeth, and the arc-shaped groove is provided with internal teeth that mesh with the external teeth.

[0019] As a further improvement of the present invention: the sub-controller is connected to the drone remote controller, and the drone remote controller is equipped with a display screen, through which inspection personnel can intuitively view the shooting results of the obstacle avoidance camera and the inspection camera.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This invention uses an obstacle avoidance camera to identify obstacles ahead, preventing the device from getting stuck when encountering obstacles; the inspection drive component makes the camera rotate around the overhead cable to take pictures, making the inspection of aging, damage, overheating and other phenomena more thorough; and the marking structure can also mark the problem areas with aging, damage, overheating and other phenomena in a circumferential manner, making it easier for maintenance personnel below to see. Attached Figure Description

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

[0023] Figure 2 This is the right view of the present invention;

[0024] Figure 3 This is the front view of the present invention;

[0025] Figure 4 This is a schematic diagram of the charged detection component in this invention;

[0026] Figure 5 This is a schematic diagram of the main unit of the live insulation defect detector in this invention;

[0027] Figure 6 This is a schematic diagram of the marking drive component inside the marking box in this invention;

[0028] Figure 7 This is a schematic diagram of the inspection drive component and inspection camera in this invention;

[0029] Figure 8 This is a schematic diagram of the marking component in this invention;

[0030] Figure 9 This is a schematic diagram of the marking clip in this invention;

[0031] Figure 10 This is a schematic diagram of the transmission mechanism when the marking sponge strip moves to face the paint spray opening in this invention;

[0032] Figure 11 This is a schematic diagram of the transmission mechanism when the marking sponge strip moves to the bottom of the marking box in this invention;

[0033] Figure label:

[0034] 1. UAV body; 2. Obstacle avoidance camera; 3. Inspection camera; 4. Marking assembly; 41. Marking base; 42. Side plate one; 43. Side plate two; 44. Electric push rod one; 45. Marking slider; 46. Fixed shaft two; 47. C-shaped block; 48. Rotating shaft one; 49. Marking clamping block; 491. Triangular positive clamping plate; 492. Triangular negative clamping plate; 493. Side clamping plate; 494. Bottom clamping plate; 495. Connecting clamping block; 410. Arc-shaped connecting rod; 411. Marking sponge strip; 5. Inspection drive assembly; 51. Frame; 52. Rotating ring; 521. Arc-shaped groove; 53. Inspection rotating shaft; 531. Rotating wheel; 54. Drive shaft; 541. Drive wheel; 55. Inspection drive motor; 551. Drive wheel; 56. Belt; 6. Marking drive assembly; 61. Marking 62. Drive motor; 62. Spray paint box; 621. Spray paint opening; 63. Transmission mechanism; 631. L-shaped marking frame; 632. Connecting frame; 633. Rotating shaft three; 634. Rotating shaft four; 635. Slide seat; 636. Slide rod; 637. Marking connecting rod one; 638. Marking connecting rod two; 639. Fixed shaft three; 6310. Marking connecting rod three; 6311. Marking mounting base; 64. Paint box; 65. Spray paint holder; 66. Paint pipe; 67. Spray nozzle; 7. Marking box; 8. Cable; 9. Live-line detection assembly; 91. Main unit of live-line insulation defect detector; 911. Housing; 912. Partial discharge sensor; 92. Clamping block; 93. Electric push rod two; 94. Live-line detection frame; 941. Detection slide; 95. Detection clamping screw; 96. Detection clamping motor. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0036] In order to solve the technical problems in the prior art, the present invention will now be further described in conjunction with the accompanying drawings and embodiments:

[0037] like Figures 1 to 11As shown, this invention discloses an inspection device for overhead cables, comprising a flight body, an inspection structure, and a marking structure. The flight body is equipped with an obstacle avoidance camera 2 and a sub-controller. The inspection structure is mounted on the flight body and includes an inspection camera 3 and an inspection drive component 5. The inspection drive component 5 is connected to the inspection camera 3 to drive the inspection camera 3 to rotate around the cable to take pictures. The marking structure is mounted on the flight body and includes a marking component 4 and a marking drive component 6. The marking drive component 6 is connected to the marking component 4, and the marking component 4 marks the cable circumferentially. The obstacle avoidance camera 2, the inspection camera 3, the inspection drive component 5, the marking component 4, and the marking drive component 6 are respectively connected to the sub-controller.

[0038] In this invention, the sub-controller is connected to the remote controller, which is equipped with a display screen. Inspection personnel can visually view the images captured by obstacle avoidance camera 2 and inspection camera 3 on the display. Obstacle avoidance camera 2 identifies obstacles, and the remote controller controls the flight unit to avoid them, preventing the device from jamming when encountering obstacles. Inspection drive component 5 controls the rotation of inspection camera 3 to comprehensively image the cable, and marking component 4 marks the cable circumferentially, making the markings easier for maintenance personnel below to see.

[0039] The flight unit, typically a drone (1), is equipped with a battery and a sub-controller. A marking box (7) is mounted on the flight unit's frame. Marking and inspection structures are installed on the flight unit, which then carries these structures to the cable location for photographing and marking.

[0040] like Figure 7 As shown, in some embodiments, the inspection drive assembly 5 includes a frame 51, a rotating ring 52, and an inspection drive component. Both the frame 51 and the rotating ring 52 have openings. The inspection camera 3 is mounted on the rotating ring 52. The rotating ring 52 is rotatably connected to the frame 51. The inspection drive component is connected to the rotating ring 52 to drive the rotating ring to rotate the inspection camera 3 around the cable.

[0041] The openings on the frame 51 and the rotating ring 52 are in the same position. The inspection drive is installed in the marking box 7 on the flight body frame, and the marking component 4 can extend into or out of the marking box 7. The flight body drives the inspection drive component 5 to move the cable, so that the cable enters the space formed by the frame 51 and the rotating ring 52 through the opening. During the flight of the flight body, the frame 51 and the rotating ring 52 move along the axis of the cable. The inspection camera 3 is located on the outer periphery of the cable and is driven by the inspection drive to rotate around the cable axis for all-round shooting.

[0042] Furthermore, a rotating wheel 531 and a drive wheel 541 are installed on the frame 51 along the rotation direction of the rotating ring 52. An active wheel 551 is connected to the output shaft of the inspection drive component. An arc groove 521 is provided on the rotating ring 52. The active wheel 551, the rotating wheel 531, the drive wheel 541 and the arc groove 521 are connected by a belt 56.

[0043] The number and spacing of the rotating wheel 531 and the drive wheel 541 can be adjusted according to the actual situation. The rotating wheel 531 and the drive wheel 541 are located on the frame 51 and are arranged along the rotation direction of the rotating ring 52. The rotating wheel 531 can be fixed by the inspection rotating shaft 53 set on the frame 51, and the drive wheel 541 can be fixed by the drive shaft 54 ​​set on the frame 51.

[0044] The frame 51 is designed with an arc-shaped rotating part, and correspondingly, the rotating ring 52 is provided with an arc-shaped rotating track. The curvature of the rotating track matches the curvature of the rotating part. The rotating part is located on the outer side of the rotating track, and the rotating track is located on the inner side of the rotating part, so that the rotating ring 52 can rotate automatically on the frame 51 without detaching from the frame 51. The inspection drive component drives the drive wheel 551 to rotate. The drive wheel 551, the rotating wheel 531, and the drive wheel 541 are connected by a belt 56. The belt 56 is connected to the rotating ring 52 through the arc-shaped groove 521, thereby driving the rotating ring 52 to rotate around the axis of the frame 51. The inspection camera 3 on the rotating ring 52 rotates with it. The cable enters the inner space of the frame 51 and the rotating ring 52 through the opening to realize circumferential imaging of the cable.

[0045] The inspection drive component is an inspection drive motor 55. In use, the flight body is moved by the remote control, so that the cable enters the space enclosed by the frame 51 through the opening. The inspection camera 3 is located on the outer periphery of the cable. As the flight body moves along the cable 8, the inspection drive motor 55 drives the arc-shaped rotating ring 52 to rotate between the belt 56 and multiple rotating wheels 531 through the drive wheel 551, belt 56 and drive wheel 541. This allows the inspection camera 3 on the arc-shaped rotating ring 52 to rotate around the axis of the arc-shaped rotating ring 52 and take pictures of the circumference of the cable 8, making the inspection more thorough.

[0046] Furthermore, the belt 56 is provided with external teeth, and the arc-shaped groove 521 is provided with internal teeth that mesh with the external teeth. The internal teeth can be set as gears, or they can be set as racks along the arc direction of the rotating ring 52. The internal teeth mesh with the external teeth for transmission, without affecting the rotation of the rotating ring 52.

[0047] The arc-shaped groove 521 is located on the rotating track. The internal teeth on the arc-shaped groove 521 mesh with the external teeth on the belt 56, which makes the transmission effect better. Under the transmission action of the inspection drive and the belt 56, the rotating ring 52 rotates more stably on the frame 51.

[0048] like Figure 8 , 9 As shown, in some embodiments, the marking assembly 4 includes a marking base 41, an electric push rod 44, a marking slider 45, an arc-shaped connecting rod 410, and a marking clamp 49. The electric push rod 44 is mounted on the marking base 41. The top ends of the two arc-shaped connecting rods 410 are symmetrically rotatably connected to the marking slider 45. The bottom ends of the two arc-shaped connecting rods 410 are respectively connected to the marking clamp 49. One end of the marking clamp 49 is provided with a rotating shaft 48. The rotating shaft 48 is rotatably connected to the lower end of the marking base 41. The marking clamp 49 is provided with marking sponge strips 411. The electric push rod 44 drives the marking slider 45 to move linearly, causing the arc-shaped connecting rod 410 to drive the marking sponge strips 411 on the two marking clamps 49 to rotate around the rotating shaft 48, moving them closer or further apart.

[0049] During the process of the electric push rod 44 pushing the marking slider 45 downward, the arc-shaped connecting rod 410 rotates and hinges the fixed shaft 1 and the marking clamp 49, causing the marking clamp 49 to rotate around the rotating shaft 48. When the marking slider 45 is in its lowest position, the marking sponge strips 411 on the two adjacent marking clamps 49 clamp the cable to be marked and deform. The marking paint on the marking sponge strips 411 can then adhere to the cable 8, marking the cable 8 circumferentially, making it easier for maintenance personnel below to see, and avoiding the problem of paint splattering and polluting the environment.

[0050] like Figure 6 As shown, the marking drive assembly 6 further includes a marking drive component, a paint spray box 62, and a transmission mechanism 63. The paint spray box 62 has a paint spray opening 621, and a nozzle 67 with its spraying end facing the paint spray opening 621 is provided inside the paint spray box 62. The marking drive component is connected to the marking assembly 4 through the transmission mechanism 63, causing the marking assembly 4 to move back and forth between the paint spray opening 621 and the marking action position. This marking action position refers to the position where the marking assembly 4 marks the cable.

[0051] like Figure 10 , 11As shown, in some embodiments, the transmission mechanism 63 includes an L-shaped marker frame 631, a connecting frame 632, a first marker link 637, a second marker link 638, and a third marker link 6310. The connecting frame 632 is located on the horizontal part of the L-shaped marker frame 631, and a marker driving component is installed on the connecting frame 632. A sliding seat is installed on the vertical part of the L-shaped marker frame 631, and the sliding seat 635 is rotatably connected to the vertical part of the L-shaped marker frame 631. A sliding rod 636 is slidably connected in the sliding seat, and the sliding rod 636 is connected to the marker assembly 4. One end of the first marker link 637 is rotatably hinged to the horizontal part of the L-shaped marker frame 631, and the other end of the first marker link 637 is rotatably hinged to the marker assembly 4. The marker driving component drives one end of the second marker link 638, and the other end of the second marker link 638 is rotatably hinged to the first marker link 637 through the third marker link 6310. The output end of the marker driving component drives the second marker link 638.

[0052] The axial direction of the slide rod 636 is consistent with the transverse direction of the L-shaped marker frame 631. The marker driving component is a marker drive motor 61. The length of the second marker link 638 is less than that of the third marker link 6310 and the first marker link 637. The other end of the second marker link 638 is rotatably hinged to one end of the third marker link 6310, and the other end of the third marker link 6310 is rotatably hinged to the first marker link 637. The output shaft of the marker drive motor 61 rotates, driving the second marker link 638 to rotate. Marking rod 6310, marking link 638, and marking link 637 drive slide rod 636 to slide. Slide block 635 is rotatably connected to the vertical part of L-shaped marking frame 631. When marking drive motor 61 drives marking link 638 to rotate 180° clockwise, parallel marking sponge strip 411 gradually moves to the spray opening. When marking drive motor 61 drives marking link 638 to continue rotating 180° clockwise, parallel marking sponge strip 411 gradually moves down to the marking action position.

[0053] like Figure 6 As shown, the paint spraying box 62 is provided with a paint spraying chamber, which is connected to the spray nozzle 67. A paint tank 64 is fixed on the top of the paint spraying box 62. The paint spraying chamber and the paint tank 64 are connected through a paint pipe 66, and a paint pump is provided on the paint pipe.

[0054] The marking drive unit uses a transmission mechanism 63 to move the marking assembly 4 back and forth between the paint spray opening 621 and the marking action position. When the electric push rod 44 pushes the marking slider 45 to its highest position, the arc-shaped connecting rod 410 rotates and connects the fixed shaft 1 and the marking clamp 49, causing the marking clamp 49 to rotate around the rotating shaft 48. The two marking sponge strips 411 rotate to a parallel state. At this time, the marking drive motor 61 moves the marking assembly 4 through the transmission mechanism 63, so that the marking sponge is facing and placed at the paint spray opening 621. The paint pump sprays paint onto the marking sponge strips 411 through the paint pipe 66, the paint spraying chamber, and the nozzle 67. After the painting is completed, the marking drive motor 61 moves the marking assembly 4 from the paint spray opening 621 to the marking action position through the transmission mechanism 63. The electric push rod 44 pushes the marking slider 45 down, thus marking the cable 8 below the marking box 7.

[0055] like Figure 4 , 5 As shown, in some embodiments, the flight body is equipped with a live detection assembly 9. The live detection assembly 9 includes a second electric push rod 93, a live detection frame 94, and a live insulation defect detector 91. The live insulation defect detector 91 is fixed on the live detection frame 94. The second electric push rod 93 is connected to the live detection frame 94. The live insulation defect detector 91 includes a housing 911 and a partial discharge sensor 912 and a data processing module disposed on the housing 911. The housing 911 has an opening. The partial discharge sensor 912 is connected to the data processing module. The data processing module is connected to a sub-controller.

[0056] The live-line insulation defect detector 91 can perform live-line detection on the cable 8. The cable enters through the opening on the housing 911 and comes into contact with the partial discharge sensor 912. As the sensitive sensor of the live-line insulation defect detector 911, the partial discharge sensor 912 can capture those weak partial discharge signals in overhead lines that are almost imperceptible. The data processing module uses a variety of advanced technologies such as statistical analysis, adaptive filtering algorithms, and deep learning. It can not only deeply mine the data and extract key features, but also further improve the accuracy and reliability of the data through fusion algorithms and hardware filtering technology.

[0057] like Figure 4 As shown, clamping blocks 92 are respectively provided on both sides of the main unit 91 of the insulation defect live detector. A detection clamping screw 95 is installed on the live detection frame 94. The detection clamping screw 95 is connected to the detection clamping motor. The detection clamping screw 95 is provided with two external threads with opposite directions, namely external thread one and external thread two. The clamping blocks 92 are respectively installed on the detection clamping screw 95 through external thread one and external thread two.

[0058] Furthermore, the bottom of the live-line testing frame 94 is provided with a testing slide groove, a testing clamping screw 95 is rotatably connected in the testing slide groove, and a testing clamping motor is fixed to one end of the testing slide groove. The tops of the two clamping blocks 92 slide along the testing slide groove. The output end of the testing clamping motor drives the testing clamping screw 95. The two clamping blocks 92 are respectively provided with an internal thread hole 1 and an internal thread hole 2 on the external thread 1 and external thread 2. Since the internal thread hole 1 is screwed to the external thread 1, and the internal thread hole 2 is screwed to the external thread 2, when the testing clamping motor drives the two clamping blocks 92 to move away from each other, the main unit 91 of the live-line insulation defect detector can be removed.

[0059] When in use, the inspection device of this invention is remotely controlled to take off and reach the overhead cable. The inspection drive assembly 5 drives the inspection camera 3 to rotate around the cable, providing a comprehensive view of the overhead cable for a more thorough inspection. Based on the images captured by the inspection camera 3, problems such as aging, damage, and overheating on the overhead cable are identified. When the obstacle avoidance camera 2 detects an obstacle ahead, the aircraft carrying the inspection camera 3 detaches from the cable and flies over obstacles such as insulators, clamps, and vibration dampers. After overcoming the obstacle, the aircraft carrying the inspection camera 3 returns to the overhead cable to continue the inspection. When abnormal phenomena such as aging, damage, or overheating are observed on the overhead cable, the remote controller and sub-controller control the marking drive group to move the marking assembly 4, which then marks the abnormal cable circumferentially. This invention can avoid obstacles, preventing the device from getting stuck when encountering obstacles; it can make the camera rotate around the overhead cable 8 to take pictures, making the inspection of aging, damage, overheating and other phenomena more thorough, and can perform live detection of overhead lines, making the detection function more comprehensive; it can also mark the problems of aging, damage, overheating and other phenomena in a circumferential manner, making it easier for maintenance personnel below to see, and it will not cause paint splattering and environmental pollution.

[0060] Implementation Case 1:

[0061] like Figure 1-11As shown, an inspection device for overhead cables includes a drone body 1, an obstacle avoidance camera 2 mounted on the drone body 1, a sub-controller and a battery mounted on the drone body 1, and a drone remote controller communicatively connected to the sub-controller. A downward-facing marking box 7 is mounted on the frame of the drone body 1, an inspection camera 3 is positioned below the marking box 7, a marking component 4 extends into or out of the marking box 7, an inspection drive component 5 drives the inspection camera 3 to rotate around the cable, a marking drive component 6 drives the marking component 4 to move, and a live detection component 9 is positioned between the marking drive component 6 and the inspection drive component 5. The inspection drive component 5, the live detection component 9, and the marking drive component 6 are all installed inside the marking box 7. The obstacle avoidance camera 2, the battery, the inspection camera 3, the marking component 4, the inspection drive component 5, the marking drive component 6, and the live detection component 9 are all electrically connected to the sub-controller.

[0062] In use, the drone body 1 is remotely controlled by the drone remote controller to take off and reach the overhead cable. The inspection drive component 5 drives the inspection camera 3 to rotate around the cable, performing a comprehensive inspection of the overhead cable. This ensures a more thorough inspection and identifies problems such as aging, damage, and overheating on the overhead cable based on the images captured by the inspection camera 3. When abnormalities such as aging, damage, or overheating are found on the overhead cable, the drone remote controller and sub-controller control the marking drive group to move the marking component 4, which marks the abnormal cable circumferentially. When the obstacle avoidance camera 2 detects an obstacle ahead, the drone body 1, carrying the inspection camera on its frame, activates the obstacle avoidance camera. 3. The drone detaches from the cable and flies over obstacles such as insulators, clamps, and vibration dampers. After overcoming the obstacles, the drone body 1, carrying the inspection camera 3 on the frame, returns to the overhead cable to continue the inspection. This invention can avoid obstacles and prevent the device from getting stuck when encountering obstacles. It can make the camera rotate around the overhead cable 8 to take pictures, making the inspection of aging, damage, overheating and other phenomena more thorough. It can also perform live detection of overhead lines, making the detection function more comprehensive. It can also mark the problems of aging, damage, overheating and other phenomena in a circumferential manner, making it easier for maintenance personnel below to see them, and it will not cause paint splattering and environmental pollution.

[0063] like Figure 1-11As shown, the live-line detection assembly 9 includes a main unit 91 for an insulation defect live-line detector, two clamping blocks 92 for clamping the main unit 91 on both sides, and an electric push rod 93 fixed in the marking box 7. The piston rod of the electric push rod 93 extends vertically downward and is connected to a live-line detection frame 94. The bottom of the live-line detection frame 94 is provided with a detection groove 941, a detection clamping screw 95 is rotatably connected in the detection groove 941, and a detection clamp is fixed at one end of the detection groove 941. The clamping motor 96 is used to drive the top ends of the two clamping blocks 92 to slide along the detection groove 941. The output end of the detection clamping motor 96 is connected to the detection clamping screw 95. The detection clamping screw 95 has two adjacent external threads with opposite directions, namely external threads one and external threads two. The two clamping blocks 92 are respectively provided with internal thread holes one and two, corresponding to external threads one and external threads two. In this embodiment, the live-line detection frame 94 is driven by the electric push rod two 93 to drive the main unit 91 of the live-line insulation defect detector to extend from the bottom of the marking box 7. The insulation defect live-line detector 91, positioned against the cable 8 below the marking box 7, can perform live-line detection on the cable 8. The live-line detector 91 includes an inverted U-shaped housing 911, a partial discharge sensor 912 embedded in the inner arc surface of the bend in the housing 911, and a data processing module housed within the housing 911. The partial discharge sensor 912 is electrically connected to the data processing module, which is connected to a sub-controller. The partial discharge sensor 912 acts as a sensitive sensor of the live-line detector 91, capable of detecting... For those almost imperceptible weak partial discharge signals in overhead lines, the data processing module uses a variety of advanced technologies such as statistical analysis, adaptive filtering algorithms, and deep learning. It can not only deeply mine the data and extract key features, but also further improve the accuracy and reliability of the data through fusion algorithms and hardware filtering technology. Since the internal thread hole one is screwed to the external thread one, and the internal thread hole two is screwed to the external thread two, when the detection clamping motor 96 drives the two clamping blocks 92 to move away from each other, the main unit 91 of the insulation defect live detector can be removed.

[0064] like Figure 1-11As shown, the inspection drive assembly 5 includes an arc-shaped frame 51 fixed at the opening of the marking box 7, an arc-shaped rotating ring 52 rotatably connected to the arc-shaped frame 51, multiple inspection rotating shafts 53 and a drive shaft 54 ​​mounted around the arc-shaped rotating ring 52 on the arc-shaped frame 51, a rotating wheel 531 set on the inspection rotating shaft 53, a drive wheel 541 set on the drive shaft 54, and an inspection drive motor 55 fixed inside the marking box 7. The arc-shaped frame 51 and the arc-shaped rotating ring 52 are respectively provided with an opening one and an opening two. A drive wheel 551 is driven and connected to the output shaft of the inspection drive motor 55. An arc-shaped groove 521 is provided on the outer arc surface of the arc-shaped rotating ring 52. The drive wheel 551, the drive wheel 541, and the arc-shaped groove 521 are connected by a drive wheel 551. The belt 56 connects the circular arc-shaped rotating ring 52, which is rotatably connected between the rotating wheel 531 and the belt 56 via the arc groove 521. The inspection camera 3 is fixed on the circular arc-shaped rotating ring 52, and the shooting end of the inspection camera 3 is set facing the axis of the circular arc-shaped rotating ring 52. In this embodiment, during use, the drone remote controller remotely controls the drone body 1 to move, so that the cable 8 enters the circular arc-shaped rotating ring 52 from the first opening and the second opening. During the movement of the drone body 1 along the cable 8, the inspection drive motor 55 drives the circular arc-shaped rotating ring 52 to rotate between the belt 56 and multiple rotating wheels 531 through the drive wheel 551, the belt 56 and the drive wheel 541, so that the inspection camera 3 on the circular arc-shaped rotating ring 52 can rotate around the axis of the circular arc-shaped rotating ring 52 and shoot the circumference of the cable 8, making the inspection more thorough.

[0065] like Figure 1-11 As shown, the outer surface of the belt 56 is provided with external teeth, and the arc-shaped groove 521 is provided with a gear. The external teeth and the gear mesh. In this embodiment, the inspection drive motor 55 drives the arc-shaped rotating ring 52 to rotate between the belt 56 and multiple rotating wheels 531 through the drive wheel 551, the belt 56 and the drive wheel 541. The meshing of the external teeth and the gear can improve the transmission effect between the belt 56 and the arc-shaped groove 521.

[0066] like Figure 1-11As shown, the marking assembly 4 includes a marking base 41, a side plate 42 and a side plate 43 fixed to the bottom of the marking base 41, an electric push rod 44 fixed to the marking base 41, a marking slider 45 slidably connected between the side plate 42 and the side plate 43, a fixed shaft 46 symmetrically fixed to the marking slider 45, two fixed shafts 46 connecting the side plate 42 and the side plate 43, a U-shaped block 47 vertically connected to the fixed shafts 46, a rotating shaft 48 rotatably connecting the two horizontal parts of the U-shaped block 47, a marking clamp 49 rotatably connected at one end to the rotating shaft 48, and an arc-shaped connecting rod 410 rotatably connecting the fixed shaft and the marking clamp 49 at both ends. The piston rod head of the electric push rod 44 is vertically oriented towards... The lower extension drive connects to the marking slider 45. The marking clamp 49 is provided with a marking sponge strip 411, which is coated with marking paint. In this embodiment, as the electric push rod 44 pushes the marking slider 45 down between the side plate 42 and the side plate 43, the arc-shaped connecting rod 410 rotates and hinges the fixed shaft 1 and the marking clamp 49, causing the marking clamp 49 to rotate around the rotating shaft 48. When the marking slider 45 is at its lowest position, the marking sponge strips 411 on the two marking clamps 49 clamp the cable to be marked and deform. The marking paint on the marking sponge strips 411 can then be applied to the cable 8, marking the cable 8 circumferentially. This makes it easier for maintenance personnel below to see the markings and avoids the problem of paint splattering and polluting the environment.

[0067] like Figure 1-11 As shown, the marking clamp 49 includes two opposing triangular clamping plates 491 and a triangular inverted clamping plate 492, a side clamping plate 493 connecting the sides of the triangular clamping plates 491 and 492, and a bottom clamping plate 494 connecting the bottom of the triangular clamping plates 491 and 492. A connecting clamping block 495 is fixedly connected at the connection between the side clamping plates 493 and the bottom clamping plate 494. The rotating shaft 48 rotatably connects to the connecting clamping block. 495, the bottom end of the arc-shaped connecting rod 410 is connected to the apex of the triangular positive clamping plate 491 and the apex of the triangular negative clamping plate 492, and the marking sponge strip 411 is set on the bottom clamping plate 494; in this embodiment, when the marking clamping block 49 is triangular in shape as a whole, and the connecting clamping block 495 connects the side clamping plate 493 and the bottom clamping plate 494, the marking slider 45 can be pivotally connected to the apex of the marking clamping block 49 through the arc-shaped connecting rod 410, so that the marking clamping block 49 can rotate more easily around the rotation axis 48.

[0068] like Figure 1-11As shown, the marking drive assembly 6 includes a marking drive motor 61 and a paint spray box 62 fixed inside the marking box 7, a transmission mechanism 63 connecting the marking drive motor 61 and the marking assembly 4, a paint tank 64 fixed to the top of the paint spray box 62, a paint spray opening 621 provided on the side of the paint spray box 62, a paint spray base 65 provided inside the paint spray box 62 facing the paint spray opening 621, a paint spray chamber provided inside the paint spray base 65, a paint pipe 66 connecting the paint tank 64 and the paint spray chamber, a plurality of nozzles 67 communicating with the paint spray chamber provided on one side of the paint spray base 65, the spraying end of the nozzles 67 facing the paint spray opening 621, a paint pump provided at one end of the paint pipe 66 extending into the paint tank 64, the marking drive motor 61 causes the marking assembly 4 to move back and forth between the paint spray opening 621 and the bottom of the marking box 7 through the transmission mechanism 63, and the marking base 41 is installed at the output end of the transmission mechanism 63; in this embodiment, by The marking drive motor 61, through the transmission mechanism 63, causes the marking assembly 4 to move back and forth between the paint spray opening 621 and the bottom of the marking box 7. When the electric push rod 44 pushes the marking slider 45 to move up along the side plate 42 and the side plate 43 to the highest position, the arc-shaped connecting rod 410 rotates and hinges the fixed shaft 1 and the marking clamp 49, causing the marking clamp 49 to rotate around the rotating shaft 48. The two marking sponge strips 411 rotate to a parallel state. At this time, the marking drive motor 61, through the transmission mechanism 63, moves the marking assembly 4 so that the marking sponge is facing and placed at the paint spray opening 621. The paint pump sprays paint onto the marking sponge strips 411 through the paint pipe 66, the paint spraying chamber, and the nozzle 67. After the painting is completed, the marking drive motor 61, through the transmission mechanism 63, moves the marking assembly 4 from the paint spray opening 621 to the bottom of the marking box 7. The electric push rod 44 pushes the marking slider 45 down, thus marking the cable 8 below the marking box 7.

[0069] like Figure 1-11As shown, the transmission mechanism 63 includes an L-shaped marking frame 631 fixed inside the marking box 7, a connecting frame 632 with its bottom end fixed to the horizontal end of the L-shaped marking frame 631, a rotating shaft 631 rotatably connected to the vertical part of the L-shaped marking frame 631, a rotating shaft 633 rotatably connected to the horizontal part of the L-shaped marking frame 631, a rotating shaft 634 rotatably connected to the connecting frame 632, a slide block 635 fixed to the rotating shaft 635, a slide rod 636 slidably connected to the slide block 635, and a slide rod 636 fixed to the first... The marking mounting base 6311 at one end, a fixed shaft four fixed on the marking mounting base 6311, a marking connecting rod one 637 rotatably hinged to the rotating shaft three 633 and the fixed shaft four, a marking connecting rod two 638 fixed at one end to the rotating shaft four 634, a fixed shaft three 639 provided on one side of the marking connecting rod one 637, the fixed shaft three 639 and the marking connecting rod two 638 are rotatably hinged to each other by the marking connecting rod three 6310, the paint spray box 62 is fixed above the connecting frame 632, and the marking... The marker drive motor 61 is fixed on the connecting frame 632 and drives the rotating shaft 634. The marker base 41 is fixed on the marker mounting base 6311. In this embodiment, during the rotation of the rotating shaft 634 driven by the marker drive motor 61, the rotating shaft 634 drives the slide rod 636 to slide along the slide block 635 through the marker connecting rod 638, the marker connecting rod 6310, and the marker connecting rod 637. At the same time, the slide block 635 is rotatably connected to the vertical part of the L-shaped marker frame 631 through the rotating shaft 632. When the marking drive motor 61 drives the rotating shaft 634 to rotate the marking link 638 clockwise, from the nine o'clock position to the three o'clock position, the parallel marking sponge strip 411 gradually moves to the position facing the paint spray opening 621; when the drive motor drives the rotating shaft 634 to continue rotating the marking link 638 clockwise, from the three o'clock position to the nine o'clock position, the parallel marking sponge strip 411 gradually extends out from the opening of the marking box 7.

[0070] The drone remote controller is equipped with a display screen, which allows inspection personnel to visually view the shooting results of obstacle avoidance camera 2 and inspection camera 3.

[0071] 1. When in use, the drone is remotely controlled to take off and fly to the overhead cable. The inspection drive component drives the inspection camera to rotate around the cable and take pictures of the overhead cable from all directions, making the inspection more thorough. Based on the pictures taken by the inspection camera, problems such as aging, damage, and overheating on the overhead cable can be identified.

[0072] 2. When abnormal phenomena such as aging, damage, or overheating occur on overhead cables, the marking drive group is controlled by the drone remote controller and sub-controller to move the marking component, and the marking component marks the abnormal cable circumferentially.

[0073] 3. When the obstacle avoidance camera detects an obstacle ahead, the drone body carrying the inspection camera on the frame detaches from the cable and flies over obstacles such as insulators, clamps, and vibration dampers in flight mode. After overcoming the obstacle, the drone body carrying the inspection camera on the frame returns to the overhead cable and continues to perform inspection.

[0074] 4. When the drone hovers, the live detection component can perform partial discharge live detection on overhead cables, accurately controlling the health status of overhead lines, making the detection function more comprehensive.

[0075] The main functions of this invention are:

[0076] This invention can avoid obstacles, preventing the device from getting stuck when encountering obstacles; it allows the camera to rotate around the overhead cable to take pictures, making the inspection of aging, damage, overheating and other phenomena more thorough; it can perform live detection of overhead lines, making the detection function more comprehensive; it can also mark the problems of aging, damage, overheating and other phenomena in a circumferential manner, making it easier for maintenance personnel below to see, and it will not cause paint splattering and environmental pollution.

[0077] In summary, after reading this invention document, those skilled in the art can make various other corresponding modifications to the technical solutions and concepts based on this invention without creative mental effort, and all of these modifications fall within the scope of protection of this invention.

Claims

1. An inspection device for overhead cables, characterized in that, include: The main body of the aircraft is equipped with an obstacle avoidance camera and a sub-controller; An inspection structure is mounted on the flight body. The inspection structure includes an inspection camera and an inspection drive assembly. The inspection drive assembly is connected to the inspection camera to drive the inspection camera to rotate around the cable to take pictures. A marking structure, mounted on the flight body, includes a marking component and a marking drive component, the marking drive component being connected to the marking component, the marking component marking the cable circumferentially; The obstacle avoidance camera, inspection camera, inspection drive component, marking component, and marking drive component are respectively connected to the sub-controller; The marking assembly includes a marking base, an electric push rod, a marking slider, an arc-shaped connecting rod, and marking clamps. The electric push rod is mounted on the marking base. The top ends of the two arc-shaped connecting rods are symmetrically rotatably connected to the marking slider. The bottom ends of the two arc-shaped connecting rods are respectively connected to marking clamps. One end of each marking clamp is provided with a rotating shaft, which is rotatably connected to the lower end of the marking base. Marking sponge strips are provided on the marking clamps. The electric push rod drives the marking slider to move linearly, causing the arc-shaped connecting rod to drive the marking sponge strips on the two marking clamps to rotate around the rotating shaft and move closer or further apart from each other. The marking drive assembly includes a marking drive component, a paint spray box, and a transmission mechanism. The paint spray box has a paint spray opening, and the paint spray box contains a nozzle with its spraying end facing the paint spray opening. The marking drive component is connected to the marking assembly through the transmission mechanism, causing the marking assembly to move back and forth between the paint spray opening and the position where the marking action is performed.

2. The inspection device for overhead cables according to claim 1, characterized in that, The inspection drive assembly includes a frame, a rotating ring, and an inspection drive component. Both the frame and the rotating ring have openings. The inspection camera is mounted on the rotating ring, which is rotatably connected to the frame. The inspection drive component is connected to the rotating ring to drive the rotating ring to rotate the inspection camera around the cable.

3. The inspection device for overhead cables according to claim 2, characterized in that, The frame is equipped with a rotating wheel and a drive wheel along the rotation direction of the rotating ring. The output shaft of the inspection drive is connected to a drive wheel. The rotating ring is provided with an arc-shaped groove. The drive wheel, the rotating wheel, the drive wheel and the arc-shaped groove are connected by a belt.

4. The inspection device for overhead cables according to claim 1, characterized in that, The transmission mechanism includes an L-shaped marker frame, a connecting frame, a marker link one, a marker link two, and a marker link three. The connecting frame is located on the horizontal part of the L-shaped marker frame, and a marker driving component is installed on the connecting frame. A sliding seat is rotatably connected to the vertical part of the L-shaped marker frame, and a sliding rod is slidably connected in the sliding seat. The sliding rod is connected to the marker assembly. One end of the marker link one is rotatably hinged to the horizontal part of the L-shaped marker frame, and the other end of the marker link one is rotatably hinged to the marker assembly. The marker driving component drives one end of the marker link two, and the other end of the marker link two is rotatably hinged to the marker link one through the marker link three.

5. The inspection device for overhead cables according to claim 1, characterized in that, The spray booth is equipped with a spraying chamber, which is connected to the spray nozzle. A paint tank is fixed on the top of the spray booth, and the spraying chamber and the paint tank are connected by a paint pipe, which is equipped with a paint pump.

6. The inspection device for overhead cables according to claim 1, characterized in that, The flight body is equipped with a live detection assembly, which includes a second electric push rod, a live detection frame, and a main unit for an insulation defect live detection instrument. The main unit for the insulation defect live detection instrument is fixed on the live detection frame. The second electric push rod is connected to the live detection frame. The main unit for the insulation defect live detection instrument includes a housing and a partial discharge sensor and a data processing module disposed on the housing. The housing has an opening, and the partial discharge sensor is connected to the data processing module. The data processing module is connected to a sub-controller.

7. The inspection device for overhead cables according to claim 6, characterized in that, The main body of the insulation defect live-line detector is provided with clamping blocks on both sides. The live-line detection frame is equipped with a detection clamping screw. The detection clamping screw is connected to the detection clamping motor. The detection clamping screw is provided with two external threads with opposite directions, namely external thread one and external thread two. The clamping blocks are respectively installed on the detection clamping screw through external thread one and external thread two.

8. The inspection device for overhead cables according to claim 3, characterized in that, The belt is provided with external teeth, and the arc-shaped groove is provided with internal teeth that mesh with the external teeth.

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