A high-altitude foreign object removal device for power grid lines

Abstract

This invention relates to the field of power grid line cleaning technology, specifically to a high-altitude foreign object removal device for power grid lines. The device includes a base frame assembly, a self-clamping walking assembly, and a cleaning assembly. The base frame assembly uses a bent extension rod to center and hang the high-voltage line. A U-shaped clamping rod, linked with the movable frame, enables unfolding and drooping, while limiting bolts constrain the rotation angle. The self-clamping walking assembly, through its linkage with the base frame assembly, drives the upper and lower clamping rods to retract synchronously, achieving rapid mounting and self-clamping stability of the power grid line. The cleaning assembly then removes high-altitude foreign objects from the power grid line. The device is mounted on the power grid line in one step by lifting the connecting crossbar, and automatically clamps the line after release. This solves the problems of complex installation and low efficiency of existing equipment, making it suitable for rapid high-altitude foreign object removal and improving safety and operational efficiency.

Description

Technical Field

[0001] This invention relates to the field of power grid line cleaning technology, specifically to a high-altitude foreign object cleaning device for power grid lines. Background Technology

[0002] High-altitude foreign object removal from power grid lines refers to the operation of removing various foreign objects attached to high-voltage transmission lines erected at high altitudes. These foreign objects mainly include plastic bags, advertising banners, kite strings, tree branches, etc., which float in the wind. Once these foreign objects become entangled in the high-voltage lines, they may cause short circuits, tripping, or even large-scale power outages, seriously threatening the safe operation of the power grid. The removal operation needs to be completed at a height of tens of meters and often involves a live environment, requiring high reliability, safety, and ease of operation of the equipment.

[0003] Existing technologies generally employ manual assistance with mechanical cleaning or drone-borne tools for cleaning. When using manual assistance with mechanical cleaning, workers need to climb the high-voltage tower and manually install the cleaning equipment (such as wheeled grippers or cutting tools) onto the power line. They then manually adjust the gripper position to fix the equipment to the power line before driving the cleaning components (such as blades or high-pressure water guns) to remove the foreign objects. This process requires multiple people to work together, and a single installation and adjustment can take more than 30 minutes, resulting in low work efficiency and high labor intensity. Furthermore, the wheeled clamp structure of existing cleaning equipment requires manual alignment with the power line before being fixed with bolts, necessitating delicate operations at a height of tens of meters, making the installation process complex. When using drones to carry tools for cleaning, the drones are used to approach the power grid lines with simple cutting devices or water spraying equipment. The drones rely on visual positioning, but due to the influence of high-altitude wind and the drone's positioning accuracy, it is difficult for the equipment to accurately align with the lines. Especially in complex terrain or strong wind environments, the relative position control error between the drone and the high-voltage line usually exceeds 50cm, which cannot effectively clean up foreign objects at high altitudes and has certain defects. Therefore, it is necessary to develop a device for cleaning foreign objects at high altitudes of power grid lines. Summary of the Invention

[0004] To address the aforementioned deficiencies and problems, this invention provides a high-altitude foreign object removal device for power grid lines. The device aims to achieve rapid mounting and self-clamping stabilization of power grid lines through the linkage of the base frame assembly and the self-clamping walking assembly, and to remove high-altitude foreign objects from power grid lines using the cleaning assembly.

[0005] The solution adopted by this invention to solve its technical problem is: a high-altitude foreign object removal device for power grid lines, comprising a base frame assembly, a self-clamping walking assembly, and a cleaning assembly. The base frame assembly includes a basic frame, an extension rod, a U-shaped clamping rod, a hollow conduit, a movable frame, an L-shaped top rod, and a U-shaped connecting rod. The extension rod is fixed to the front top of the basic frame, the U-shaped clamping rod is hinged to the extension rod, and a top rod section is fixed to the top of the U-shaped clamping rod. The hollow conduit is fixed to the rear side of the basic frame, and the movable frame is slidably fitted inside the hollow conduit. An L-shaped top rod is fixed to the top of the movable frame, and a U-shaped connecting rod is hinged between the L-shaped top rod and the U-shaped clamping rod. A self-clamping walking assembly is installed in the interlayer cavity of the basic frame. The self-clamping walking assembly includes a base, a gear set, a clamping rod, a walking unit, and a control unit. The gear set is oriented left and right. The device is installed inside the base. The gear set includes upper and lower meshing gears. The inner end of the clamping rod is connected to the side of the gear. The traveling unit is located at the outer end of the clamping rod. The control unit includes a gate tube, a gate cable, and a spring. The two ends of the gate tube are fixedly connected to the base frame and the upper clamping rod, respectively. The gate cable passes through the gate tube, and the two ends of the gate cable are fixedly connected to the top rod section and the lower clamping rod, respectively. The spring is installed between adjacent upper and lower clamping rods and sleeved on the gate cable. The cleaning component is located at the bottom of the base frame. When the movable frame is lifted, the U-shaped clamping rod can be driven to flip outward simultaneously. At the same time, the U-shaped clamping rod controls the adjacent clamping rods to unfold through the control unit. When the movable frame is released, the U-shaped clamping rod can be driven to flip inward simultaneously. At the same time, the U-shaped clamping rod controls the adjacent clamping rods to retract through the control unit.

[0006] The beneficial effects of this invention are as follows: When the connecting crossbar is pulled up, the movable frame moves upward, causing the U-shaped connecting rod to pull the U-shaped clamp rod outward and unfold; after being released, the movable frame falls under its own weight, and the U-shaped clamp rod hangs down naturally. The automatic switching between "pulling up and unfolding" and "releasing and hanging down" is achieved by using mechanical linkage transmission. The loading state switching can be completed by gravity and human power (or drone assistance). In addition, the U-shaped clamp rod in the hanging state can hook the high-voltage line, forming double protection to prevent the device from falling. At the same time, when the U-shaped clamp rod hangs down under its own weight, it can pull the switch line to realize the clamp rod retraction, so that the traveling wheel is clamped and firmly attached to the power grid line; when the U-shaped clamp rod is flipped outward and unfolded, the switch line is reset, and the spring automatically pushes the clamp rod to unfold, so that the traveling wheel is disengaged from the power grid line. The effect of "releasing and clamping" is achieved by using gravity, which improves the safety of operation. The gear set installed in the base can ensure the synchronous opening or closing of the upper and lower clamping rods. The rigid transmission of gear meshing realizes the synchronicity of the clamping rod movement. When clamping, the upper and lower traveling wheels apply symmetrical forces to the high-voltage line to ensure smooth travel and reduce line wear. Through the coordinated operation of the base frame assembly and the self-clamping walking assembly, a rapid one-step mounting effect is achieved. The U-shaped clamp rod in the drooping state corresponds to the walking wheel clamping operation state, and the U-shaped clamp rod in the unfolded state corresponds to the walking wheel loosening state. The U-shaped clamp rod can be unfolded by manually or by drone lifting the connecting crossbar. After the base frame is hung on the power grid line, the connecting crossbar can be released to make the U-shaped clamp rod droop down to pull the switch line, so that the walking wheel automatically clamps the power grid line. The mechanical linkage realizes a three-step rapid installation process of lifting-hanging-releasing, which greatly shortens the operation time. It is especially suitable for high-altitude live work and reduces the time that personnel are exposed to the high voltage environment. Attached Figure Description

[0007] Figure 1 This is one of the schematic diagrams of the overall structure of the present invention.

[0008] Figure 2 This is the second schematic diagram of the overall structure of the present invention.

[0009] Figure 3 This is the third schematic diagram of the overall structure of the present invention.

[0010] Figure 4 This is a front view of the overall structure of the present invention.

[0011] Figure 5 This is a schematic diagram illustrating the changes in the usage state of the present invention.

[0012] Figure 6 This is a diagram showing the changes in the usage status of the base frame components.

[0013] Figure 7 This is a diagram showing the changes in the usage status of the self-clamping walking component.

[0014] In the diagram: 1-Base frame assembly, 11-Basic frame, 111-Rectangular front frame, 112-Rectangular rear frame, 12-Mezzanine cavity, 13-Extension rod, 14-U-shaped clamping rod, 15-Top rod section, 16-Hollow conduit, 17-Moving frame, 18-L-shaped top rod, 19-U-shaped connecting rod, 2-Connecting crossbar, 3-Limiting bolt, 4-Self-clamping walking assembly, 41-Base, 42-Gear set, 43-Clamping rod, 44-Walking unit, 441-Wheel seat, 442-Walking wheel, 443-Brushless motor, 45-Control unit, 451-Gate pipe, 452-Gate cable, 453-Spring, 5-Cleaning assembly, 51-Base box, 52-Angle adjustment swing arm, 53-High-pressure nozzle, 54-Water tank, 55-Camera, 61-Fixing hole, 62-Locking hole, 63-Locking bolt. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Example 1: Existing technologies mainly employ two methods: manual climbing to install mechanical cleaning equipment and drone-borne tools for cleaning. The manual method requires climbing the iron tower to manually adjust the wheel clamps to fix the equipment, which is time-consuming, labor-intensive, and has high risks due to high-altitude operations, and the equipment has poor adaptability. The drone method is affected by wind force and positioning accuracy, making it difficult to accurately align with the line.

[0017] To address the aforementioned issues, this embodiment provides a high-altitude foreign object removal device for power grid lines, comprising a base frame assembly 1, a self-clamping walking assembly 4, and a cleaning assembly 5. The device is designed to be installed onto power grid lines in one step to remove foreign objects. The base frame assembly 1 includes a basic frame 11, an extension rod 13, a U-shaped clamping rod 14, a hollow conduit 16, a movable frame 17, an L-shaped top rod 18, and a U-shaped connecting rod 19. The basic frame 11 includes a connected rectangular front frame 111 and a rectangular rear frame 112, forming a cavity 12 between them. Outer plates are installed on the rectangular front frame 111 and the rectangular rear frame 112.

[0018] An extension rod 13 is fixed to the top front side of the base frame 11. The extension rod 13 is bent and connected to the top front side of the rectangular front frame 111. The extension rod 13 can be centered to hang the power grid line. The U-shaped clamp rod 14 is hinged to the extension rod 13, and a top rod section 15 is fixed to the top of the U-shaped clamp rod 14. The U-shaped clamp rod 14 can be flipped and swung along the hinge point with the extension rod 13. The front and rear sides of the U-shaped clamp rod 14 are also provided with outer plates.

[0019] A hollow conduit 16 is fixed to the rear side of the base frame 11. The movable frame 17 is slidably fitted inside the hollow conduit 16. The movable frame 17 can slide vertically inside the hollow conduit 16. An L-shaped top rod 18 is fixed to the top of the movable frame 17. The L-shaped top rod 18 is hinged to the U-shaped locking rod 14 through a U-shaped connecting rod 19. That is, one end of the U-shaped connecting rod 19 is hinged to the L-shaped top rod 18, and the other end of the U-shaped connecting rod 19 is hinged to the U-shaped locking rod 14. A connecting crossbar 2 is also fixedly installed on the top of the L-shaped top rod 18. The connecting crossbar 2 has a U-shaped structure.

[0020] By lifting the connecting crossbar 2, the movable frame 17 can be moved upward within the hollow guide tube 16. When the movable frame 17 moves upward, it will pull the U-shaped locking rod 14 through the U-shaped connecting rod 19, causing the U-shaped locking rod 14 to flip outward and unfold. When the frame is released, the movable frame 17 falls under its own weight, and at the same time, the U-shaped locking rod 14 hangs down naturally (the U-shaped locking rod 14 also hangs down under its own weight).

[0021] When the movable frame 17 falls back to its original position under its own weight, it is supported by the top of the hollow guide tube 16. A limit hole is opened on the side of the movable frame 17, and a limit bolt 3 is installed in the limit hole. The limit bolt 3 can limit the movement of the movable frame 17 in the hollow guide tube 16, thereby constraining the flipping angle of the U-shaped lever 14, so that the U-shaped lever 14 is in an inclined state when it is unfolded.

[0022] The self-clamping walking assembly 4 is installed in the interlayer cavity 12 of the base frame 11. The self-clamping walking assembly 4 includes a base 41, a gear set 42, a clamping rod 43, a walking unit 44, and a control unit 45. The base 41 has a rectangular structure and is installed in the interlayer cavity 12 of the base frame 11. A locking element for locking the base 41 is provided on the rear outer plate of the base frame 11. The locking element is a locking bolt 63. The base 41 has a fixing hole 61 and multiple locking holes 62 are provided on the outer plate. The base 41 can move up and down to adjust its position in the interlayer cavity 12, thereby adjusting the overall position of the self-clamping walking assembly 4. When the fixing hole 61 corresponds to the locking hole 62, the locking bolt 63 is tightened into the locking hole 62 and the fixing hole 61, which can lock and stabilize the base 41.

[0023] The gear set 42 is symmetrically installed in the base 41. The gear set 42 includes gears that mesh with each other. The inner end of the clamping rod 43 is connected to the side of the gear, that is, the upper gear is connected to the upper clamping rod 43 and the lower gear is connected to the lower clamping rod 43. The purpose of the gears meshing is to enable the upper and lower clamping rods 43 to open or close synchronously. The outer end of the clamping rod 43 is equipped with a walking unit 44. The walking unit 44 includes a walking wheel 442, a wheel seat 441 and a brushless motor 443. The wheel seat 441 is installed on the outer end of the clamping rod 43, the walking wheel 442 is installed on the front side of the wheel seat 441, and the brushless motor 443 is installed on the rear side of the wheel seat 441. The output shaft of the brushless motor 443 is connected to the wheel axle of the walking wheel 442 to control the rotation of the walking wheel 442. When the clamping rod 43 closes, the upper and lower adjacent walking wheels 442 automatically clamp the power grid line and can drive the base frame assembly 1 to walk on the power grid line.

[0024] The control unit 45 includes a gate tube 451, a gate cable 452, and a spring 453. The gate cable 452 passes through the gate tube 451. The top of the gate tube 451 is fixed to the top of the base frame 11, and the bottom end of the gate tube 451 is fixed to the top of the upper clamping rod 43. Through holes that cooperate with the gate cable 452 are opened in the upper clamping rod 43 and the lower clamping rod 43. The bottom end of the gate cable 452 extends out of the gate tube 451 and connects to the bottom of the lower clamping rod 43. The top end of the gate cable 452 is fixed to the top rod section 15 (considered as the traction point). The spring 453 is installed between adjacent upper and lower clamping rods 43 and is sleeved on the gate cable 452. The elasticity of the spring 453 is sufficient to elastically push the upper and lower clamping rods 43, so that the upper and lower clamping rods 43 are in an unfolded state.

[0025] Pulling the brake cable 452 will cause the adjacent upper and lower clamping rods 43 to retract inward simultaneously; releasing the brake cable 452 will cause the spring 453 to extend the adjacent upper and lower clamping rods 43 outward simultaneously.

[0026] The top section 15 of the U-shaped lever 14 has sufficient traction force. After the U-shaped lever 14 hangs down under its own weight, it can ensure the stability of the pulling line 452 and make the self-clamping walking component stably clamp the power grid line. Only by lifting the movable frame 17 can the U-shaped lever 14 be controlled to unfold and the line 452 be released.

[0027] The cleaning component 5 is located at the bottom of the base frame 11. The cleaning component 5 includes a base box 51, a pump, a high-pressure nozzle 53, a camera 55, a water tank 54, and an angle-adjusting swing arm 52. The base box 51 is installed at the bottom of the base frame 11 and contains the pump, power supply, and controller. The angle-adjusting swing arm 52 is installed at the bottom of the base box 51, and the high-pressure nozzle 53 is located at the swing end of the angle-adjusting swing arm 52. The angle of the high-pressure nozzle 53 can be adjusted by the angle-adjusting swing arm 52 to clean foreign objects or snow from the power grid lines. In this embodiment, the angle-adjusting swing arm 52 adopts a three-axis robotic arm in the prior art, and its structure will not be described in detail here. The water tank 54 is fixedly installed on the U-shaped clamp 14 and acts as a counterweight to maintain the balance of the base frame 11 hanging on the power grid lines. The water tank 54 is connected to the input end of the pump through a pipeline, and the output end of the pump is connected to the high-pressure nozzle 53 through a pipeline. The camera 55 is installed on the base frame 11 to monitor the work area.

[0028] When the movable frame 17 is pulled up and the U-shaped clamp 14 is driven to flip outward and unfold, the gate line 452 connected to the top rod section 15 is in a loose (i.e., retracted) state, and the spring 453 pushes against the adjacent upper and lower clamping rods 43, which are in an unfolded state. When the movable frame 17 is released and the U-shaped clamp 14 is driven to flip inward and reset, the top rod section 15 will pull the gate line 452, causing the upper and lower clamping rods 43 to be in a retracted state, and the upper and lower traveling wheels 442 will automatically clamp the power grid line.

[0029] In other words, loosening the movable frame 17 will cause the U-shaped clamping rod 14 to automatically droop and reset, while the control unit 45 will cause the adjacent upper and lower clamping rods 43 to be in a closed and clamped state; lifting the movable frame 17 will cause the U-shaped clamping rod 14 to unfold, while the control unit 45 will cause the adjacent upper and lower clamping rods 43 to be in an unfolded and outward state.

[0030] In use, the operator manually or by using a drone lifts the movable frame 17 via the connecting crossbar 2, causing the U-shaped clamp 14 to unfold into an inclined state. The base frame 11 is then directly hung on the power grid line, which slides down to below the extension rod 13. After releasing the movable frame 17, the U-shaped clamp 14 automatically drops, and the upper and lower traveling wheels 442 automatically clamp the power grid line. The brushless motor 443 controls the traveling wheels 442 to move along the power grid line, and the camera 55 monitors the work area. The cleaning component 5 cleans foreign objects from the power grid line.

[0031] The center of the extension rod 13 corresponds vertically to the traveling wheel 442, so that after the power grid line is placed below the center of the extension rod 13, it can achieve vertical alignment and centering with the traveling wheel 442. At this time, the upper and lower traveling wheels 442 can automatically cooperate with the power grid line to clamp the power grid line.

[0032] The feature of this device is that it simplifies the loading process and can quickly mount the device onto the power grid line in one step. That is, after manually or by drone, the movable frame 17 can be lifted and the basic frame 11 can be directly mounted onto the power grid line. After the movable frame 17 is released, the self-propelled component will immediately and automatically clamp the power grid line, so that the device can be automatically mounted onto the power grid line. Meanwhile, the U-shaped lever 14 droops under its own weight, providing protection. Regardless of whether the walking wheel 442 is detached from the power grid line, the base frame assembly 1 can always be mounted on the power grid line, achieving mounting protection.

[0033] Example 2, this embodiment describes a high-altitude foreign object removal device for power grid lines, focusing on the differences from Example 1.

[0034] In this embodiment, considering the layout of the pipeline and the possible interference caused by the pipeline during the process of the basic frame 11 being mounted on the power grid line, the water tank 54 can be set inside the bottom box 51, and a counterweight is set on the U-shaped clamp 14 to maintain the balance of the basic frame 11.

[0035] Example 3, this embodiment describes a high-altitude foreign object removal device for power grid lines, focusing on the differences from Example 1.

[0036] In this embodiment, the cleaning component 5 can adopt another structural design, such as replacing the water tank 54 with a fuel tank, and installing a flame gun or flame device (using existing technology structure) on the angle adjustment arm 52 to eliminate foreign objects in the power grid line by flame.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-altitude foreign object removal device for power grid lines, characterized in that, The system includes a base frame assembly (1), a self-clamping walking assembly (4), and a cleaning assembly (5). The base frame assembly (1) includes a base frame (11), an extension rod (13), a U-shaped clamping rod (14), a hollow conduit (16), a movable frame (17), an L-shaped top rod (18), and a U-shaped connecting rod (19). The extension rod (13) is fixed to the front top of the base frame (11). The U-shaped clamping rod (14) is hinged to the extension rod (13), and a top rod section (15) is fixed to the top of the U-shaped clamping rod (14). The hollow conduit (16) is fixed to the rear side of the base frame (11). 6) The movable frame (17) is slidably fitted into the hollow conduit (16). An L-shaped top rod (18) is fixed to the top of the movable frame (17). A U-shaped connecting rod (19) is hinged between the L-shaped top rod (18) and the U-shaped clamping rod (14). A self-clamping walking assembly (4) is installed in the interlayer cavity (12) of the base frame (11). The self-clamping walking assembly (4) includes a base (41), a gear set (42), a clamping rod (43), a walking unit (44), and a control unit (45). The gear set (42) is symmetrically installed in the base (41). (42) Includes gears that mesh with each other, the inner end of the clamping rod (43) is connected to the side of the gear, the walking unit (44) is set at the outer end of the clamping rod (43), the control unit (45) includes a gate tube (451), a gate cable (452) and a spring (453), the two ends of the gate tube (451) are fixedly connected to the base frame (11) and the upper clamping rod (43) respectively, the gate cable (452) passes through the gate tube (451), and the two ends of the gate cable (452) are fixedly connected to the top rod section (15) and the lower clamping rod (43) respectively, the spring (453) The cleaning component (5) is installed between adjacent upper and lower clamping rods (43) and sleeved on the gate line (452); the cleaning component (5) is set at the bottom of the base frame (11); when the movable frame (17) is lifted, the U-shaped clamping rod (14) can be driven to flip outward in sync, and the U-shaped clamping rod (14) controls the adjacent clamping rods (43) to unfold through the control unit (45); when the movable frame (17) is released, the U-shaped clamping rod (14) can be driven to flip inward in sync, and the U-shaped clamping rod (14) controls the adjacent clamping rods (43) to close through the control unit (45).

2. The high-altitude foreign object removal device for power grid lines according to claim 1, characterized in that, The basic frame (11) includes a rectangular front frame (111) and a rectangular rear frame (112) connected to each other, forming a sandwich cavity (12) between the rectangular front frame (111) and the rectangular rear frame (112), and an extension rod (13) is bent and connected to the front top of the rectangular front frame (111).

3. The high-altitude foreign object removal device for power grid lines according to claim 1, characterized in that, The cleaning assembly (5) includes a base box (51), a pump, a high-pressure nozzle (53), a camera (55), a water tank (54), and an angle adjustment arm (52). The base box (51) is installed at the bottom of the base frame (11), the pump is located inside the base box (51), the angle adjustment arm (52) is installed below the base box (51), and the high-pressure nozzle (53) is set on the angle adjustment arm (52). The water tank (54) is set on the U-shaped lever (14), the water tank (54) is connected to the input end of the pump, and the output end of the pump is connected to the high-pressure nozzle (53). Alternatively, the water tank (54) is set inside the base box (51), and a counterweight is set on the U-shaped lever (14). The camera (55) is installed on the base frame (11).

4. The high-altitude foreign object removal device for power grid lines according to claim 1, characterized in that, The walking unit (44) includes a walking wheel (442), a wheel seat (441), and a brushless motor (443). The wheel seat (441) is installed on the outer end of the clamping rod (43), the walking wheel (442) is installed on the front side of the wheel seat (441), and the brushless motor (443) is installed on the rear side of the wheel seat (441). The output shaft of the brushless motor (443) is connected to the wheel axle of the walking wheel (442) to control the rotation of the walking wheel (442).

5. The high-altitude foreign object removal device for power grid lines according to claim 1, characterized in that, A connecting crossbar (2) is also fixedly installed on the top of the L-shaped top rod (18), and the connecting crossbar (2) is a U-shaped structure.

6. The high-altitude foreign object removal device for power grid lines according to claim 1, characterized in that, A limiting hole is made on the side of the movable frame (17), and a limiting bolt (3) is fitted inside the limiting hole. The limiting bolt (3) can limit the movement of the movable frame (17) in the hollow guide tube (16), thereby constraining the flipping angle of the U-shaped lever (14).

7. The high-altitude foreign object removal device for power grid lines according to claim 1, characterized in that, Outer plates are provided on the front and rear sides of the base frame (11), and locking elements for locking the base (41) are provided on the outer plates.

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