Overhead line gear shifting inspection device
By designing an overhead line shifting inspection device, and utilizing the coaxial design of the actively controllable hook and cable fastening and the hinge shaft and snap-fit sleeve, the problem of existing inspection equipment being unable to autonomously cross adjacent cables is solved. This enables the equipment to achieve stable and automatic transition between different cables, improving inspection efficiency and stability.
Patent Information
- Application Number
- CN202511774963.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-02-17
AI Technical Summary
Existing inspection equipment cannot autonomously cross to other adjacent cables erected on the same tower when multiple lines are erected on the same tower, resulting in low inspection efficiency.
An overhead line shifting and inspection device was designed. It achieves stable suspension by engaging the cable with an actively controllable hook. The coaxial design of the hinge shaft and the snap-fit sleeve, combined with the diagonal brace, provides triangular and stable support to ensure the stability of the main beam during shifting. The device can also achieve rapid locking through the moving component and the clamping component, enabling automatic transition between different cables.
It enables automatic transition of inspection equipment between different cables, avoiding instantaneous load switching and impact, and improving inspection efficiency and stability.
Smart Images

Figure CN121539720A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to overhead line inspection technology, and in particular to an overhead line shifting inspection device. Background Technology
[0002] Overhead power distribution cables are typically constructed with multiple circuits running in parallel. However, due to prolonged exposure to complex outdoor environments, these cables are prone to insulation aging, mechanical damage, and other issues, seriously threatening power grid safety. Currently, inspection robots or automated inspection devices that travel along power lines are gradually replacing traditional manual climbing inspections.
[0003] However, once such equipment is deployed to a cable via drone or manual means, its walking mechanism and suspension structure are confined to that cable, preventing it from autonomously crossing to other adjacent cables on the same tower during inspection. Therefore, in multi-circuit cable installations on the same tower, a single set of equipment can only complete the inspection of a single circuit or a single phase, failing to cover all lines within the same corridor. To achieve complete inspection, each cable must be redeployed and retrieved, significantly increasing the complexity and time cost, resulting in extremely low inspection efficiency. Summary of the Invention
[0004] Therefore, the technical problem to be solved by the present invention is: the problem that the current inspection equipment cannot shift gears stably.
[0005] The above-mentioned technical problems are solved by the following technical solution: The present invention proposes an overhead line shifting and inspection device, which includes a connecting unit including a main beam; The left-hand suspension unit is located on one side of the connecting unit. The left-hand rotation unit includes a movable component suspended from the end of the cable, a clamping component disposed at the bottom of the movable component, a support arm slidably connected to the bottom of the clamping component, and a stabilizing component fixedly disposed on one side of the support arm. The right-hand suspension unit is located on the other side of the connecting unit; Furthermore, the right suspension unit has a similar structure to the left suspension unit.
[0006] In a preferred embodiment of the overhead line shifting inspection device of the present invention, the connecting unit further includes a connecting frame fixedly disposed at the bottom of the main beam, an mounting plate connected to both sides of the connecting frame, a control module fixedly disposed inside the mounting plate, and a detection module connected to the bottom of the control module.
[0007] In a preferred embodiment of the overhead line shifting and inspection device of the present invention: the moving component includes a roller for mounting the end of the cable, a first motor disposed at the bottom of the roller, and guard plates disposed on both sides of the roller.
[0008] In a preferred embodiment of the overhead line shifting inspection device of the present invention: the clamping assembly includes a mounting bracket fixedly connected to the bottom of the guard plate, a linear component disposed inside the mounting bracket, and a movable clamping wheel disposed on one side of the linear component; The mounting bracket includes a sleeve plate protruding from its bottom.
[0009] In a preferred embodiment of the overhead line shifting inspection device of the present invention: the movable clamping wheel includes a connecting block, an extension block protruding from one side of the connecting block, and a pulley hinged to the end of the extension block.
[0010] In a preferred embodiment of the overhead line shifting and inspection device of the present invention: the main beam includes a pair of vertical plates protruding from both ends thereon; The support arm includes a drive end hinged to one side of the upright plate, a sliding arm protruding from one end of the drive end, and a diagonal brace protruding from the bottom of the sliding arm.
[0011] In a preferred embodiment of the overhead line shifting and inspection device of the present invention: the upright plate includes a hinge joint protruding on one side thereon. The driving end includes a hinge shaft hinged to the hinge joint, and a snap-fit sleeve protruding from one side of the inclined brace. The hinge axis coincides with the axis of the snap-fit sleeve.
[0012] In a preferred embodiment of the overhead line shifting inspection device of the present invention: the sliding arm includes a sliding chamber opened on its inner side, a displacement member installed on the inner side of the sliding chamber, and a slider connected to the periphery of the displacement member.
[0013] In a preferred embodiment of the overhead line shifting inspection device of the present invention: the upright plate includes a swing arm motor protruding from its outer side, and a connecting rod fixedly connected to the output shaft of the swing arm motor; The connecting rod is fixedly engaged with the snap-fit sleeve.
[0014] In a preferred embodiment of the overhead line shifting inspection device of the present invention: the stabilizing component includes a limiting block fixedly installed on the inner side of the support arm, and a pair of anti-vibration rods hinged to the limiting block and arranged in opposite directions; The shock absorber includes a hook protruding from its end.
[0015] The beneficial effects of this invention are as follows: by actively controllable hooks and cable fastening, stable suspension of a single-sided left-hand rotation unit or right-hand suspension unit is achieved, eliminating the risk of load overturning caused by the swing of the support arm; subsequently, the coaxially designed hinge shaft and snap-fit sleeve, driven by the swing arm motor, drive the support arm to rotate smoothly around the axis, combined with the triangular stable support provided by the diagonal brace, ensuring the stability of the main beam during gear shifting; finally, by quickly locking the target cable through the moving component and clamping component, the automatic transition of the equipment between different cables is realized, avoiding instantaneous load switching and eliminating the resulting impact and swing. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein: Figure 1 A schematic diagram of the overhead line shifting and inspection device of the present invention is shown in the case of a suspended cable. Figure 2 A partial structural schematic diagram of the overhead line shifting and inspection device of the present invention is shown; Figure 3 A schematic diagram of the shifting structure of the present invention is shown; Figure 4 A partial structural schematic diagram of the moving component and clamping component of the present invention is shown; Figure 5 An exploded view of a portion of the swing arm structure of the present invention is shown; Figure 6 A schematic diagram of a partial structure of the swing arm of the present invention is shown. Detailed Implementation
[0017] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0018] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.
[0019] Reference Figures 1-6 This embodiment provides an overhead line shifting and inspection device, including a connecting unit 1 including a main beam 11; The left suspension unit 2 is located on one side of the connecting unit 1. The left rotation unit 2 includes a movable component 21 suspended from the end of the cable, a clamping component 22 disposed at the bottom of the movable component 21, a support arm 23 slidably connected to the bottom of the clamping component 22, and a stabilizer 24 fixedly disposed on one side of the support arm 23. The right suspension unit 3 is located on the other side of the connecting unit 1; and the right suspension unit 3 has a similar structure to the left suspension unit 2.
[0020] Furthermore, the connection unit 1 also includes a connection frame 12 fixedly installed at the bottom of the main beam 11, a mounting plate 13 connected to both sides of the connection frame 12, a control module 14 fixedly installed inside the mounting plate 13, and a detection module 15 connected to the bottom of the control module 14.
[0021] Furthermore, the moving component 21 includes a roller 211 for mounting the cable end, a first motor 212 disposed at the bottom of the roller 211, and guard plates 213 disposed on both sides of the roller 211.
[0022] Furthermore, the clamping assembly 22 includes a mounting bracket 221 fixedly connected to the bottom of the guard plate 213, a linear member 222 disposed inside the mounting bracket 221, and a movable clamping wheel 223 disposed on one side of the linear member 222; Mounting bracket 221 includes a sleeve plate 2211 protruding from its bottom.
[0023] Furthermore, the movable clamping wheel 223 includes a connecting block 2231, an extension block 2232 protruding from one side of the connecting block 2231, and a pulley 2233 hinged to the end of the extension block 2232.
[0024] In this embodiment, the right suspension unit 3 and the left suspension unit 2 are hinged to the left and right sides of the connecting unit 1. The right suspension unit 3 and the left suspension unit 2 suspend the device on the overhead cable. The right suspension unit 3 and the left suspension unit 2 have the same structure, and the moving part 21 is suspended on the overhead cable. The clamping force of the clamping assembly 22 presses the moving part against the outer periphery of the cable. The support arm 23 provides auxiliary support below the clamping assembly 22 and forms a linkage structure with the main beam 11, realizing the swing of the right suspension unit 3 and the left suspension unit 2 relative to the main beam 11 to adapt to the turning requirements of the cable crossing. The stabilizing part 24 can suppress the shaking of the device and improve the stability during the inspection process.
[0025] Preferably, a connecting frame 12 is fixedly connected to the bottom of the main beam 11, and mounting plates 13 are symmetrically installed on both sides of the connecting frame 12; the control module 14 is suspended and fixed inside the mounting plate 13, integrating the main control chip, power management unit and communication module to realize equipment operation control and data transmission; the detection module 15 is suspended at the bottom of the control module 14, including a camera module and an infrared temperature measurement module, which can collect the surface temperature of the cable in real time.
[0026] The support arm 23 is slidably connected to the bottom of the clamping assembly 22, and can adjust the relative position between the clamping assembly 22 and the moving assembly 21 and the main beam 11 to stabilize the bottom of the suspension cable.
[0027] Preferably, the moving component 21 contacts the surface of the overhead cable via rollers 211 and is driven by the first motor 212 to move along the cable; the protective plate 213 covers both ends of the rollers 211, protecting the first motor 212 and preventing interference from the external environment. A mounting bracket 221 is fixedly connected to the bottom of the protective plate 213. A linear component 222 is installed inside the mounting bracket 221, and a movable clamping wheel 223 is connected to one side of the linear component 222. The extension block 2232 is driven to press or release the cable through telescopic movement.
[0028] One end of the guard plate 213 is fixedly installed on the outer shaft end of the roller 211, and the other end extends away from the center of the roller 211 and covers its side, effectively preventing foreign objects from entering the contact surface between the roller and the cable. The bottom of the end of the guard plate 213 away from the roller 211 is fixedly installed on the upper end of the mounting frame 221. The mounting frame 221 is a U-shaped sheet metal structure, and its bottom sleeve plate 2211 is fitted around the outer periphery of the support arm 23. A linear component 222 is provided in the inner cavity of the mounting frame 221. The linear component 222 can drive the movable clamping wheel 223 through telescopic movement to clamp or release the cable, thereby cooperating with the moving component 21 to complete the movement and positioning.
[0029] Preferably, the linear element 222 adopts an electric push rod or hydraulic cylinder structure, and the movable clamping wheel 223 is fixedly connected to the output end of the linear element 222, thereby adjusting the clamping force through electric or hydraulic control.
[0030] Preferably, the movable clamping wheel 223 achieves vertical displacement through the connecting block 2231 fixedly sleeved on the output shaft end of the linear component 222. An extension block 2232 protrudes from one end of the connecting block 2231 and is exposed on the open side of the mounting bracket 221. Two sets of pulleys 2233 are hinged to the upper end of the extension block 2232. The two sets of pulleys 2233 are symmetrically arranged on both sides of the axis of the upper roller 211 and rise and fall synchronously with the extension block 2232, thereby forming two-point contact during the clamping action and enhancing the stability between the device and the cable.
[0031] In use, the rollers 211 in the right suspension unit 3 and left suspension unit 2 on both sides of the main beam 11 are first installed manually or by drone, suspending them around the cable. Then, the clamping assembly 22 is activated, and the linear component 222 pushes the movable clamping wheel 223 upward, causing the extension block 2232 and the two sets of pulleys 2233 at its end to rise synchronously, so that they contact the cable surface and apply a preset clamping force. Then, the first motor 212 is started, and the rollers 211 roll along the surface of the overhead cable under the drive of the motor; the detection module 15 simultaneously collects the cable surface temperature and image information, and transmits it back to the monitoring center in real time, realizing all-weather inspection operation.
[0032] Reference Figures 1-6 As an optional embodiment, in one embodiment provided by the present invention, the main beam 11 includes a pair of vertical plates 111 protruding from both ends thereon; The support arm 23 includes a drive end 231 hinged to one side of the upright plate 11, a sliding arm 232 protruding from one end of the drive end 231, and a diagonal brace 233 protruding from the bottom of the sliding arm 232.
[0033] Furthermore, the upright plate 111 includes a hinge joint 1111 protruding from one side thereon; The drive end 231 includes a hinge shaft 2311 that is hinged to the hinge joint 1111, and a snap sleeve 2312 that protrudes from one side of the diagonal brace 233. The axis of the hinge shaft 2311 coincides with the axis of the snap sleeve 2312.
[0034] Furthermore, the slide arm 232 includes a slide chamber 2321 formed on its inner side, a displacement member 2322 installed on the inner side of the slide chamber 2321, and a slider 2323 connected to the periphery of the displacement member 2322.
[0035] Furthermore, the upright plate 111 includes a swing arm motor 25 protruding from its outer side, and a connecting rod 251 fixedly connected to the output shaft of the swing arm motor 25. The connecting rod 251 is fixedly engaged with the snap-fit sleeve 2312.
[0036] Furthermore, the stabilizer 24 includes a limiting block 241 fixedly installed on the inner side of the support arm 23, and a pair of anti-vibration rods 242 hinged to the limiting block 241 and arranged in the opposite direction. The shock absorber 242 includes a hook 2421 protruding from its end.
[0037] In this embodiment, the main beam 11 is a rectangular box beam. The main beam 11 drives the support arm 23 to swing around the hinge axis 2311 through the swing arm motor 25 at both ends, thereby realizing the shifting of overhead cables.
[0038] Preferably, the upright plates 111 are symmetrically distributed on the left and right sides of the main beam 11. Each upright plate 111 is provided with a hinge joint 1111. The support arm 23 on the corresponding side of the upright plate 111 is connected to the hinge joint 1111 through a hinge shaft 2311. A sliding chamber 2321 is provided on the inner side of the support arm 23. The sliding chamber 2321 is embedded with a displacement element 2322. The slider 2323 reciprocates through the cooperation of the displacement element 2322 and the sliding chamber 2321. The slider 2323 is fixedly connected to the sleeve plate 2211. The displacement element 2322 drives the slider 2323 to move, thereby enabling the sleeve plate 2211 to drive the moving component 21 and the clamping component 22 to move along the length direction of the support arm 23.
[0039] The drive end 231 of the support arm 23 is hinged to the hinge joint 1111 of the upright plate 111. The drive end 231 extends to the slide arm 232 on the other side. A slide chamber 2321 is opened inside the slide arm 232. The displacement member 2322 is embedded in the slide chamber 2321. The slider 2323 is connected to the displacement member 2322 and moves back and forth along the slide chamber 2321 to realize the linear displacement of the moving component 21 and the clamping component 22.
[0040] The diagonal brace 233 is welded to both the bottom of the sliding arm 232 and the lower side of the drive end 231, forming a robust triangular support structure. The triangle of the diagonal brace 233 effectively decomposes the load borne by the front end of the sliding arm 232 into pressure along the diagonal brace 233 and torque at the drive end 231.
[0041] Preferably, the displacement member 2322 is an electric push rod or a hydraulic cylinder structure, which drives the slider 2323 to move within the slide chamber 2321 through telescopic movement, ensuring that the sleeve 2211 drives the clamping assembly 22 to the target position.
[0042] Preferably, an annular hinge joint 1111 is fixedly welded to the center of the outer side surface of each upright plate 111. The outer cylindrical surface of the hinge joint 1111 is perpendicular to the surface of the upright plate, and a shaft hole is formed through its center. The hinge shaft 2311 is a shaft-like structure protruding from one end of the sliding arm 232, and is coaxially hinged to the hinge joint 1111 on the upright plate 111. The driving end 231 is a connector fixedly welded to the sliding arm 232, and two short shafts with coaxial axes protruding from its side near the upright plate 111, together forming the hinge shaft 2311. These two short shafts are inserted into the upper and lower surfaces of the hinge joint 1111 to form a double-supported hinge structure, avoiding the cantilever beam effect.
[0043] At the drive end 231, the main body extends downward to the root area of the diagonal brace 233, where a standard internal spline snap-fit sleeve 2312 is fixedly welded. The snap-fit sleeve 2312 is coaxially arranged with the hinge shaft 2311. A swing arm motor 25 is provided at the end axis of the hinge shaft 2311. The output shaft of the swing arm motor 25 is fixedly connected to the connecting rod 251. The connecting rod 251 passes through and snaps into the shaft holes of the hinge shaft 2311, the hinge joint 1111, and the snap-fit sleeve 2312 in sequence, and realizes the transmission of the sliding arm 232 through the snap-fit sleeve 2312.
[0044] Preferably, a limiting block 241 is fixedly installed on the inner side of the sliding arm 232 near the hinge shaft 2311. A pair of opposing anti-vibration rods 242 are hinged to the end of the limiting block 241, and two sets of hinge seats are provided at the end of the limiting block 241. One end of each anti-vibration rod 242 has a protruding hinge rod, which is hinged into one set of hinge holes in the limiting block 241. The end hinge rod of the other set of anti-vibration rods 242 is also hinged into the other set of hinge holes in the limiting block 241. The anti-vibration rod 242 is a long, elastic rod, and a hook 2421 is fixedly connected to the other end of the long rod. The two sets of anti-vibration rods 242 are hinged in opposite directions to the two sets of limiting shafts 2311. In the horizontal static state, the elastic rod of the anti-vibration rod 242 can deform under force, effectively buffering the vibration and impact during the movement of the sliding arm 232; at this time, the hook 2421 has its fastening surface facing upward, which facilitates hanging on the cable in a vertical state, ensuring that the left suspension unit 2 or the right suspension unit 3 on this side is stably suspended on the cable. Figure 3 The hook 2421 shown is in close contact with the cable surface in the suspended shifting state to prevent slippage.
[0045] When the left suspension unit 2 and the right selection unit 3 are suspended together on the cable, a symmetrical suspension structure is formed. Under the joint drive of the moving components 21 in the left suspension unit 2 and the right selection unit 3, the control module 14 and the detection module 15 under the main beam 11 are able to perform stable inspections. At this time, the anti-vibration rods 242 on the left and right sides are horizontally perpendicular to the axial direction of the cable, and the hooks 2421 have their fastening surfaces facing upwards. Under the action of the elastic deformation restoring force of the anti-vibration rods 242, the main body is ensured to remain stable during the movement, effectively suppressing the swaying caused by cable fluctuations or wind loads.
[0046] If the current cable inspection is completed or it is necessary to switch to another cable / shift gear, the ground inspection personnel can use an external long pole to lift a pair of hooks 2421 in the left suspension unit 2 or the right suspension unit 3 upwards so that they are hung on the cable directly above.
[0047] At this time, one side of the left support arm 23 is limited by the clamping limit of the moving component 21 and the clamping component 22, while the other side of the left support arm 23 is stably suspended by the hook 2421 and the cable, thus maintaining balance in the left-side hovering state.
[0048] Subsequently, the swing arm motor 25 at the end of the left support arm 23 is started, driving the sliding arm 232 to rotate around the hinge axis 2311 via the connecting rod 251, so that the main beam 11 tilts and adjusts with the swing arm motor 25 as the driving center, facing the cable on the other side. Then, the right swing arm motor 25 is started to drive the right sliding arm 232 to rotate synchronously until the roller 211 at the upper end of the sliding arm 232 engages with the end of another set of cables. Then, the right moving component 21 drives the clamping component 22 to close, and the clamping component 22 firmly locks the cable, ensuring that the main beam 11 smoothly transitions to the target cable.
[0049] Next, adjust the right hook 2421 in the same way to raise it and attach it to the cable, thus achieving stable suspension of the right suspension unit 3. Finally, adjust the main beam 11 to a horizontal position and move the original suspended side unit under the new cable to re-establish the symmetrical structure where both left and right suspension units are suspended under the cable.
[0050] After shifting gears, restore the two pairs of anti-vibration rods 242 on both sides to a horizontal position that is perpendicular to the cable axis and with the hook fastening surface facing upwards, to ensure that the support arms 23 on both sides remain stable during continuous inspection.
[0051] In addition, the left-hand rotating unit 2 and the right-hand suspended unit 3 can be suspended at the bottom of two adjacent sets of cables respectively to realize the collaborative detection operation of the two sets of cables. At this time, the main beam 11 is connected between the two cables, which makes it convenient for the detection module 15 at the bottom of the main beam 11 to inspect the two cables at the same time.
[0052] In summary, this device achieves stable suspension of either the left-hand rotating unit 2 or the right-hand suspended unit 3 by engaging the actively controllable hook 2421 with the cable, eliminating the risk of load overturning caused by the swing of the support arm 23. Subsequently, the coaxially designed hinge shaft 2311 and snap-fit sleeve 2312, driven by the swing arm motor 25, drive the support arm 23 to rotate smoothly around the axis. Combined with the triangular stable support provided by the diagonal brace 233, the stability of the main beam 11 during gear shifting is ensured. Finally, the device achieves automatic transition between different cables by quickly locking the target cable through the moving component 21 and the clamping component 22, avoiding instantaneous load switching and eliminating the resulting impact and sway.
[0053] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.
[0054] Importantly, the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. An overhead line shifting inspection device, characterized by: The utility model relates to an overhead line gear shifting inspection device, including, The connecting unit (1) includes the main beam (11); The left suspension unit (2) is hinged to one side of the connecting unit (1), and the left rotation unit (2) includes a moving assembly (21) suspended from the end of a cable, a clamping assembly (22) arranged at the bottom of the moving assembly (21), a support arm (23) slidingly connected to the bottom of the clamping assembly (22), and a stabilizing member (24) fixedly arranged at one side of the support arm (23); The right suspension unit (3) is hinged to the other side of the connecting unit (1); And the right suspension unit (3) is similar in structure to the left suspension unit (2).
2. The overhead line gear shifting inspection device according to claim 1, characterized in that: The connecting unit (1) further comprises a connecting frame (12) fixedly arranged at the bottom of the main beam (11), mounting plates (13) connected to both sides of the connecting frame (12), a control module (14) fixedly arranged at the inner side of the mounting plates (13), and a detection module (15) connected to the bottom of the control module (14).
3. The overhead line gear shifting inspection device according to claim 2, characterized in that: The moving assembly (21) comprises a roller (211) arranged at the end of the cable, a first motor (212) arranged at the bottom of the roller (211), and a guard plate (213) arranged at both sides of the roller (211).
4. The overhead line gear shifting inspection device according to claim 3, characterized in that: The clamping assembly (22) comprises a mounting frame (221) fixedly connected to the bottom of the guard plate (213), a linear member (222) arranged at the inner side of the mounting frame (221), and a movable clamping roller (223) arranged at one side of the linear member (222); The mounting frame (221) comprises a sleeve plate (2211) protruding from the bottom thereof.
5. The overhead line gear shifting inspection device according to claim 4, characterized in that: The movable clamping roller (223) comprises a connecting block (2231), an extension block (2232) protruding from one side of the connecting block (2231), and a pulley (2233) hingedly connected to the end of the extension block (2232).
6. The overhead line gear shifting inspection device according to any one of claims 1-4, characterized in that: The main beam (11) comprises a pair of vertical plates (111) protruding from both ends thereof; The support arm (23) comprises a driving end (231) hingedly connected to one side of the vertical plate (11), a sliding arm (232) protruding from one end of the driving end (231), and an inclined strut (233) protruding from the bottom of the sliding arm (232).
7. The overhead line gear shifting inspection device according to claim 6, characterized in that: The vertical plate (111) comprises a hinge joint (1111) protruding from one side thereof; The driving end (231) comprises a hinge shaft (2311) hingedly connected to the hinge joint (1111), and a clamping sleeve (2312) protruding from one side of the inclined strut (233); The hinge shaft (2311) and the clamping sleeve (2312) are coaxial.
8. The overhead line shifting and inspection device according to claim 7, characterized in that: The slide arm (232) includes a slide chamber (2321) opened on its inner side, a displacement member (2322) installed on the inner side of the slide chamber (2321), and a slider (2323) connected to the periphery of the displacement member (2322).
9. The overhead line shifting and inspection device according to claim 8, characterized in that: The upright plate (111) includes a swing arm motor (25) protruding from its outer side, and a connecting rod (251) fixedly connected to the output shaft of the swing arm motor (25). The connecting rod (251) is fixedly engaged with the snap-fit sleeve (2312).
10. The overhead line shifting and inspection device according to claim 9, characterized in that: The stabilizer (24) includes a limiting block (241) fixedly installed on the inner side of the support arm (23), and a pair of anti-vibration rods (242) hinged to the limiting block (241) and arranged in opposite directions. The shock absorber (242) includes a hook (2421) protruding from its end.