A straight pole insulator for a live-line robot

Abstract

The application relates to the technical field of power equipment, in particular to a straight-pole insulator for a live working robot, which comprises a connecting column and an insulator umbrella skirt, further comprises a wire clamp mechanism, the connecting column is fixedly installed with the insulator umbrella skirt, the upper end of the connecting column is bolt-connected with the wire clamp mechanism, the wire clamp mechanism generates horizontal movement by extruding the extrusion plate through a nut, the moving extrusion plate extrudes the adjusting spring, the deformed adjusting spring synchronously extrudes the annular disc and the elliptical disc to generate horizontal movement; the horizontally moving annular disc drives the sliding block to vertically move through the extrusion block, the sliding block drives the adjusting rod to vertically move, the adjusting rod is guided by the inner groove of the left fixed block and the right fixed block, and simultaneously completes the rotating and downward moving actions, so that the initial clamping of the electric wire is realized; meanwhile, the horizontally moving elliptical disc drives the extrusion cylinder and the limiting plate to vertically move through the cooperation of the supporting block and the pressing block, so that the secondary clamping of the electric wire is realized, and a double-clamping fixing structure is formed.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and more specifically to a linear rod insulator for a live-line working robot. Background Technology

[0002] During the long-term operation of power distribution network transmission lines, insulators, as core components supporting overhead conductors and providing electrical insulation, are constantly exposed to the complex outdoor environment. They are continuously eroded by natural environmental factors such as wind, rain, dust, and temperature differences, as well as affected by vibrations caused by wind. This makes them highly susceptible to structural damage such as skirt cracking, loosening of connectors, and deformation of clamps. Once an insulator is damaged and not replaced in time, current in the line can easily be introduced into conductive components such as crossarms and towers through the damaged area. This can cause not only leakage and short-circuit faults in the transmission line, but also safety accidents such as line tripping and equipment damage, posing a serious threat to the stable operation of the power distribution network. Currently, insulator replacement work in the domestic power distribution network still mainly relies on manual high-altitude operations. Workers not only have to disassemble, replace, and install insulators at heights, but also face multiple safety risks such as falls and electric shocks. Furthermore, manual operation is limited by physical strength and operating space, the work process is cumbersome, and the overall work efficiency is extremely low, making it difficult to meet the actual needs of rapid maintenance and efficient operation of the power distribution network.

[0003] With the development of intelligent and automated power systems, live-line working robots are increasingly being applied to distribution network operation and maintenance. This places higher demands on the adaptability of the structural design of straight pole insulators. Straight pole insulators adapted to live-line working robots not only need to maintain excellent electrical insulation performance and reliable mechanical support capabilities to meet the basic operational requirements of transmission lines, but also need to be compatible with the automated operation methods of robots, enabling rapid positioning and stable clamping of overhead conductors, while also ensuring ease of assembly and disassembly operations and adapting to the robot's mechanical operating logic. However, the existing straight-line insulators have several design flaws in their clamp mechanisms, making them unsuitable for the operational needs of live-line working robots. Firstly, the clamp mechanisms often employ a single bolt-pressing clamping structure, resulting in a limited clamping force and insufficient fixation of the conductor. When the transmission line is subjected to external forces such as wind or vibration, the conductor is prone to loosening or displacement, affecting the line's operational stability. Secondly, the clamping action design is simplistic, requiring multiple manual adjustments to the relative position of the conductor and clamp during assembly and disassembly. This cumbersome process lacks a linkage structure adapted for automated robot operation, resulting in extremely low compatibility with live-line working robots. Thirdly, some clamp mechanisms lack effective buffer protection structures. During conductor clamping, the clamp and conductor experience hard contact compression, easily causing damage such as squeezing and scratches to the conductor's insulation layer. This negatively impacts the overall service life of the transmission line, increasing subsequent maintenance costs.

[0004] In view of the above, in order to overcome the above technical problems, the present invention designs a linear rod insulator for a live-line working robot, thus solving the above technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a linear pole insulator adapted to live-line working robots. Through the integrated design of the connecting column, insulator skirt, and clamp mechanism, the clamp mechanism utilizes the transmission of screws, nuts, and adjusting springs, combined with the dual-path linkage of the annular and elliptical discs and the guidance of the left and right fixing blocks, to achieve dual clamping through the downward rotation of the adjusting rod and the vertical downward movement of the compression cylinder. Combined with the buffer structure inside the limiting plate and the double-layer insulation cover, this invention solves the shortcomings of existing clamps, achieves rapid and stable clamping and buffer protection of the conductor, adapts to robot operations, reduces risks, improves efficiency, and ensures line stability.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a linear rod insulator for a live-line working robot, comprising a connecting post and insulator skirts, and a wire clamp mechanism. The insulator skirts are fixedly installed on the connecting post, and the wire clamp mechanism is bolted to the upper end of the connecting post. The wire clamp mechanism moves horizontally by pressing a pressing plate with a nut. The moving pressing plate presses an adjusting spring, and the deformed adjusting spring simultaneously presses an annular disk and an elliptical disk to move horizontally. The horizontally moving annular disk drives a sliding block to move vertically through a pressing block. The sliding block drives an adjusting rod to move vertically. Guided by the grooves inside the left and right fixed blocks, the adjusting rod simultaneously completes rotation and downward movement, achieving initial clamping of the wire. Simultaneously, the horizontally moving elliptical disk, through the cooperation of a support block and a pressing block, drives a pressing cylinder and a limiting plate to move vertically, achieving secondary clamping of the wire, forming a double clamping and fixing structure.

[0007] Preferably, the clamp mechanism includes a fixed plate, a fixed insulating cover, a screw, an adjusting spring, a compression plate, a nut, and a compression insulating cover. The upper end of the connecting column is bolted to the fixed plate. The fixed plate has an L-shaped cross-section. Guard plates are fixedly installed on both sides of the fixed plate. The fixed insulating cover is installed on the fixed plate. The fixed insulating cover is composed of two insulating covers spliced ​​together. A screw passes through the fixed plate. An adjusting spring is installed on the screw. The front end of the screw passes through the compression plate. A nut is installed on the screw. The compression plate is located between the nut and the adjusting spring. The compression insulating cover is installed on the side of the compression plate closest to the nut.

[0008] Preferably, the fixed plate has a limiting groove inside, and an annular disk is slidably installed inside the annular groove. The screw passes through the center of the annular disk. Limiting holes are arrayed on one end of the annular disk near the adjusting spring. A return spring is engaged inside the limiting hole. The other end of the return spring is engaged inside the fixed plate. Compression blocks are fixedly installed on both sides of the annular disk. The cross-sectional shape of the compression blocks is triangular.

[0009] Preferably, the limiting groove is connected to sliding grooves on both sides, and a sliding block is slidably installed below the sliding groove. A rectangular groove is opened on the side of the sliding block near the limiting groove. A triangular block is fixedly installed on the sliding block in the rectangular groove. The inclined surface of the triangular block corresponds to the inclined surface of the extrusion block. A left fixed block is fixedly installed in the left sliding groove on the side of the fixed plate facing the adjusting spring, and a right fixed block is fixedly installed in the right sliding groove. Both the left and right fixed blocks are located at the upper end of the extrusion block. An adjusting rod is rotatably installed on the upper end of the fixed block, and the two adjusting rods pass through the left and right fixed blocks.

[0010] Preferably, the left fixing block has a sliding groove inside, which is composed of a counter-rotating groove and a vertical groove. The counter-rotating groove in the sliding groove has a length of 1 / 4 of the circumference. The right fixing block has a rotating groove inside, which is composed of a clockwise rotating groove and a vertical groove. The clockwise rotating groove in the rotating groove has a length of 1 / 4 of the circumference. The 1 / 4 circumference allows the adjusting rod to rotate 90°, thereby better clamping the wire.

[0011] Preferably, protrusions are fixedly installed on the two adjusting rods, and the two protrusions are respectively located in the sliding groove and the rotating groove. A ring is fixedly installed on the adjusting rod, and a compression spring is engaged at the lower end of the ring. The lower ends of the two compression springs are respectively installed on the upper ends of the left fixed block and the right fixed block.

[0012] Preferably, the extrusion plate has an elliptical groove inside, and an elliptical disk is slidably installed inside the elliptical groove. An extrusion hole is opened on the side of the elliptical disk near the adjusting spring. A tension spring is engaged inside the extrusion hole. The other end of the tension spring is engaged with the inner wall of the extrusion plate. A support block is fixedly installed at the top of the elliptical disk. The cross-sectional shape of the support block is a right trapezoid. The extrusion groove is connected to the top of the elliptical groove.

[0013] Preferably, a pressing block is installed inside the extrusion groove. The pressing block has a right-angled trapezoidal cross-sectional shape. The upper base of the pressing block and the upper base of the support block correspond to each other. The inclined surfaces of the extrusion plate and the support plate also correspond to each other. An extrusion cylinder is fixedly installed on the extrusion plate and slides inside the extrusion groove.

[0014] Preferably, a limiting plate is fixedly installed at the upper end of the extrusion cylinder and the upper end of the adjusting rod. A fixing groove is provided inside the limiting plate. A buffer spring is installed in a row inside the fixing groove. A buffer block is engaged at the lower end of the buffer spring. The buffer block slides inside the fixing groove. A short-arc groove is provided at the lower end of the buffer block.

[0015] The beneficial effects of this invention are as follows: 1. The initial clamping is achieved by rotating and lowering the adjusting rod, and the secondary clamping is achieved by vertically lowering the limiting plate, which greatly improves the clamping stability of the wire and effectively prevents the wire from loosening due to external force, making it suitable for the complex working environment of power transmission lines. Moreover, the clamping action is triggered by the turning action of a single nut, which has strong linkage and is easy to operate, making it suitable for the automated operation requirements of live-line working robots.

[0016] 2. Automatic reset of each moving part is achieved through the recovery spring, tension spring, and compression spring. Loosening the nut releases the clamp on the wire, eliminating the need for multiple adjustments during disassembly and assembly, thus greatly improving efficiency. At the same time, the fixed insulation cover and the compression insulation cover are set up, and the double insulation protection structure improves the electrical insulation performance of the insulator and ensures the safety of live work.

[0017] 3. The extrusion plate of the present invention can move slightly up and down along the elliptical groove, which facilitates fine adjustment of the position of the wire before clamping, and improves the adaptability of the wire clamping mechanism to wires in different positions; the setting of the guard plate restricts the rotation of the extrusion plate, ensuring the stability and accuracy of the clamping action.

[0018] 4. A fixing groove is opened inside the limiting plate. The array of buffer springs and sliding buffer blocks form an elastic buffer structure, and the lower end of the buffer block has a slightly curved groove that fits the outer wall of the wire. During clamping, the buffer block contacts the wire first, and the buffer springs offset part of the hard extrusion force through deformation, preventing the wire sheath from being squeezed or scratched. At the same time, the curved structure of the slightly curved groove fits the outer wall of the wire, increasing the clamping contact area, which not only improves the clamping firmness, but also provides effective protection for the wire and extends the service life of the transmission line. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] The above and other aspects of the invention will now be described by way of example only, with reference to the accompanying drawings, in which: Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the wire clamp mechanism of the present invention; Figure 3 This is a side view of the wire clamp mechanism of the present invention; Figure 4 This is a sectional view of the left side of the fixing plate of the present invention; Figure 5 This is a cross-sectional view of the right side of the fixing plate of the present invention; Figure 6 This is an enlarged view of the interior of the fixing plate of the present invention; Figure 7 This is a schematic diagram of the interior of the left fixing block of the present invention; Figure 8 This is a schematic diagram of the interior of the right fixing block of the present invention; Figure 9 This is a schematic diagram of the right adjusting rod of the present invention; Figure 10 This is a schematic diagram of the interior of the extrusion plate of the present invention; Figure 11 This is a cross-sectional view of the right limiting plate of the present invention.

[0021] In the diagram: 1. Connecting post; 2. Insulator skirt; 3. Wire clamp mechanism; 31. Fixing plate; 311. Guard plate; 312. Limiting groove; 313. Annular disc; 3131. Limiting hole; 3132. Returning spring; 3133. Pressing block; 314. Sliding groove; 315. Sliding block; 3151. Rectangular groove; 3152. Triangular block; 316. Left fixing block; 3161. Sliding groove; 317. Right fixing block; 3171. Rotating groove; 318. Adjusting rod; 3181. Protrusion. 3182, Ring; 3183, Compression Spring; 32, Fixed Insulating Cover; 33, Screw; 34, Adjusting Spring; 35, Compression Plate; 351, Elliptical Groove; 352, Elliptical Disc; 353, Compression Hole; 354, Tension Spring; 355, Support Block; 356, Compression Groove; 357, Pressing Block; 358, Compression Cylinder; 36, Nut; 37, Compression Insulating Cover; 38, Limiting Plate; 381, Fixed Groove; 382, ​​Buffer Spring; 383, Buffer Block; 384, Slightly Curved Groove. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be described below with reference to the accompanying drawings. The embodiments described below are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figure 1 , 2As shown in Figures 3, 4, 5, 6, 7, 8, 9, 10, and 11, the present invention provides a linear rod insulator for a live-line working robot, comprising a connecting post 1 and an insulator skirt 2, and a wire clamp mechanism 3. The insulator skirt 2 is fixedly installed on the connecting post 1, and the upper end of the connecting post 1 is bolted to the wire clamp mechanism 3. The wire clamp mechanism 3 moves horizontally by pressing a pressing plate 35 with a nut 36. The moving pressing plate 35 presses an adjusting spring 34, and the deformed adjusting spring 34 simultaneously presses an annular disk 313 and an elliptical disk 352 to move horizontally. The horizontally moving annular disk 313 drives the sliding block 315 to move vertically via the pressing block 3133. The sliding block 315 drives the adjusting rod 318 to move vertically. Under the guidance of the grooves inside the left fixed block 316 and the right fixed block 317, the adjusting rod 318 simultaneously completes the rotation and downward movement, achieving the initial clamping of the wire. At the same time, the horizontally moving elliptical disk 352, through the cooperation of the support block 355 and the pressing block 357, drives the pressing cylinder 358 and the limiting plate 38 to move vertically, achieving the secondary clamping of the wire, forming a double clamping and fixing structure.

[0024] like Figure 1 , 2 As shown in 3, 4, 5, 6, 7, 8, 9, and 10, the wire clamp mechanism 3 includes a fixed plate 31, a fixed insulating cover 32, a screw 33, an adjusting spring 34, a pressing plate 35, a nut 36, and a pressing insulating cover 37. The upper end of the connecting column 1 is bolted to the fixed plate 31. The fixed plate 31 has an L-shaped cross-section. The two sides of the fixed plate 31 are fixedly installed with guardrails 311. When the wire to be clamped is attached to the side of the fixed plate 31, the pressing plate 35 is passed through the screw 33. Under the rotational limiting action of the guardrails 311, the pressing plate 35 can only move horizontally along the screw 33. At the same time, the position of the pressing plate 35 can be slightly adjusted up and down using the structural characteristics of the elliptical groove 351 to complete the initial positioning of the wire. A fixed insulating cover 32 is installed on the fixed plate 31. The fixed insulating cover 32 is composed of two insulating covers spliced ​​together. At the same time, an extruded insulating cover 37 is installed on the extrusion plate 35, forming a double insulation protection structure. This effectively improves the electrical insulation performance of the insulator, effectively isolates current, and avoids safety hazards such as leakage and electric shock during live work, ensuring the safety of workers and live work robots. A screw 33 passes through the fixed plate 31. An adjusting spring 34 is installed on the screw 33, and the front end of the screw 33 passes through the extrusion plate 35. A nut 36 is installed on the screw 33, and the extrusion plate 35 is located between the nut 36 and the adjusting spring 34. An extruded insulating cover 37 is installed on the side of the extrusion plate 35 closest to the nut 36.

[0025] like Figure 2 , 3As shown in Figures 4, 5, and 6, a limiting groove 312 is provided inside the fixed plate 31. An annular disk 313 is slidably installed inside the annular groove. The screw 33 passes through the center of the annular disk 313. Limiting holes 3131 are arrayed on one end of the annular disk 313 near the adjusting spring 34. A return spring 3132 is engaged inside the limiting hole 3131. The other end of the return spring 3132 is engaged inside the fixed plate 31. Compression blocks 3133 are fixedly installed on both sides of the annular disk 313. The cross-sectional shape of the compression blocks 3133 is triangular. When the annular disk 313 moves horizontally, the triangular compression blocks 3133 on both sides are pressed against the inclined surface of the triangular block 3152 on the sliding block 315, pushing the sliding block 315 to move vertically downward along the sliding groove 314. The sliding block 315 drives the adjusting rod 318 to move downward synchronously.

[0026] like Figure 2 , 3 As shown in Figures 4, 5, and 6, the two sides of the limiting groove 312 are connected to the sliding groove 314. A sliding block 315 is slidably installed below the sliding groove 314. A rectangular groove 3151 is opened on the side of the sliding block 315 near the limiting groove 312. A triangular block 3152 is fixedly installed on the sliding block 315 in the rectangular groove 3151. The inclined surface of the triangular block 3152 corresponds to the inclined surface of the extrusion block 3133. A left fixing block 316 is fixedly installed in the left sliding groove 314 on the side of the fixing plate 31 facing the adjusting spring 34, and a right fixing block 317 is fixedly installed in the right sliding groove 314. The left fixing block 316 and the right fixing block 317 are both located at the upper end of the extrusion block 3133. An adjusting rod 318 is rotatably installed on the upper end of the fixing block. The two adjusting rods 318 pass through the left fixing block 316 and the right fixing block 317.

[0027] like Figure 4 , 5 As shown in Figures 6, 7, and 8, the left fixing block 316 has a sliding groove 3161 inside, which is composed of a counter-rotating groove and a vertical groove. The counter-rotating groove in the sliding groove 3161 has a length of 1 / 4 of the circumference. The right fixing block 317 has a rotating groove 3171 inside, which is composed of a clockwise rotating groove and a vertical groove. The clockwise rotating groove in the rotating groove 3171 has a length of 1 / 4 of the circumference. The 1 / 4 circumference allows the adjusting rod 318 to rotate 90°, thereby better clamping the wire.

[0028] The deformation of the adjusting spring 34 is triggered by the compression of the nut 36, which simultaneously pushes the annular disk 313 and the elliptical disk 352 to move horizontally. This causes the adjusting rod 318 to rotate downward and the pressing cylinder 358 to move vertically downward, respectively, creating a dual-clamping action. The adjusting rod 318 completes a 90° rotation and vertical downward movement under the guidance of the 1 / 4 circumferential rotation groove of the left fixed block 316 and the right fixed block 317, achieving a close-fitting clamping of the wire. The pressing cylinder 358 drives the limiting plate 38 to simultaneously press the wire downward for a second time. The dual-path structure forms a double clamping force, which, compared with the traditional single clamping structure, can effectively resist external forces such as wind and vibration, prevent the wire from loosening, and adapt to the complex working conditions of power transmission lines.

[0029] like Figure 6 , 7 As shown in Figures 8 and 9, protrusions 3181 are fixedly installed on the two adjusting rods 318. The two protrusions 3181 are located in the sliding groove 3161 and the rotating groove 3171, respectively. A ring 3182 is fixedly installed on the adjusting rod 318. A compression spring 3183 is engaged at the lower end of the ring 3182. The lower ends of the two compression springs 3183 are respectively installed on the upper ends of the left fixing block 316 and the right fixing block 317.

[0030] like Figure 1 , 2 As shown in Figures 3, 4, 5, and 10, the extrusion plate 35 has an elliptical groove 351 inside, and an elliptical disk 352 is slidably installed inside the elliptical groove 351. An extrusion hole 353 is opened on the side of the elliptical disk 352 near the adjusting spring 34. A tension spring 354 is engaged inside the extrusion hole 353. The other end of the tension spring 354 is engaged with the inner wall of the extrusion plate 35. A support block 355 is fixedly installed at the top of the elliptical disk 352. The cross-sectional shape of the support block 355 is a right trapezoid. An extrusion groove 356 is connected to the top of the elliptical groove 351.

[0031] The extrusion plate 35 has an elliptical groove 351 inside, which allows the extrusion plate 35 to be adjusted slightly up and down along the screw 33. It can be fine-tuned according to the actual layout of the wire without readjusting the overall fixing position of the insulator, thus improving the adaptability of the wire clamp mechanism 3 to wires of different positions and specifications. At the same time, the guardrails 311 on both sides of the fixing plate 31 form a rotation limit for the extrusion plate 35, so that the extrusion plate 35 can only move horizontally along the screw 33, avoiding the clamping force shift caused by the rotation of the extrusion plate 35, and ensuring the stability and accuracy of the clamping action.

[0032] like Figure 10As shown, a pressing block 357 is installed inside the extrusion groove 356. The cross-sectional shape of the pressing block 357 is a right trapezoid. The upper bottom of the pressing block 357 corresponds to the upper bottom of the support block 355. The inclined surfaces of the extrusion plate 35 and the support plate also correspond to each other. An extrusion cylinder 358 is fixedly installed on the extrusion plate 35 and slides inside the extrusion groove 356.

[0033] like Figure 1 , 2 As shown in 3, 4, 5, 6, 9, 10 and 11, a limiting plate 38 is fixedly installed on the upper end of the extrusion cylinder 358 and the upper end of the adjusting rod 318. A fixing groove 381 is opened inside the limiting plate 38. A buffer spring 382 is installed in a row inside the fixing groove 381. A buffer block 383 is engaged at the lower end of the buffer spring. The buffer block slides inside the fixing groove 381. A minor arc groove 384 is opened at the lower end of the buffer block 383.

[0034] The limiting plate 38 has a fixing groove 381 inside. The array of buffer springs 382 and the sliding buffer block 383 form an elastic buffer structure. The lower end of the buffer block 383 has a slightly curved groove 384 that fits the outer wall of the wire. When clamping, the buffer block 383 contacts the wire first. The buffer spring 382 offsets part of the hard extrusion force through deformation, preventing the wire sheath from being squeezed or scratched. At the same time, the arc-shaped structure of the slightly curved groove 384 fits the outer wall of the wire, increasing the clamping contact area. This not only improves the clamping firmness but also provides effective protection for the wire, extending the service life of the transmission line.

[0035] In the operation of this invention, the operator first passes the screw 33 through the fixing plate 31 and fixes the screw 33 on the fixing plate 31. Then, the fixed insulating cover 32, which is composed of two insulating covers spliced ​​together, is installed on the fixing plate 31. An adjusting spring 34 is sleeved on the screw 33. Then, the connecting column 1 is fixed to the support of the power line with bolts to complete the basic fixing of the insulator.

[0036] After attaching the wire to be clamped to the side of the fixing plate 31, the extrusion plate 35 is passed through the screw 33. Under the rotation limit of the guard plate 311, the extrusion plate 35 can only move horizontally along the screw 33. At the same time, by utilizing the structural characteristics of the elliptical groove 351, the position of the extrusion plate 35 is slightly adjusted up and down to complete the initial positioning of the wire.

[0037] Tighten the nut 36 on the screw 33. The nut 36 pushes the extrusion plate 35 to move horizontally along the screw 33 toward the adjusting spring 34. The extrusion plate 35 extrudes the adjusting spring 34, causing it to deform. The deformed adjusting spring 34 generates bidirectional extrusion force, which simultaneously pushes the annular disk 313 to move horizontally along the limiting groove 312 and the elliptical disk 352 to move horizontally along the elliptical groove 351.

[0038] When the annular disk 313 moves horizontally, the triangular pressing blocks 3133 on both sides press against the inclined surface of the triangular block 3152 on the sliding block 315, pushing the sliding block 315 to move vertically downward along the sliding groove 314. The sliding block 315 drives the adjusting rod 318 to move downward synchronously. The protrusion 3181 on the adjusting rod 318 slides along the counter-rotating groove of the left fixed block 316 and the clockwise rotating groove of the right fixed block 317, so that the two adjusting rods 318 can complete a 90° rotation simultaneously and continue to move downward. The limiting plate 38 at the upper end of the adjusting rod 318 gradually contacts the wire, completing the initial clamping. During this process, the annular ring 3182 compresses the compression spring 3183, causing it to deform.

[0039] When the elliptical disk 352 moves horizontally, the right-angled trapezoidal support block 355 at the upper end presses against the inclined surface of the pressing block 357. Under the action of the gravity of the pressing block 357, it moves vertically downward along the pressing groove 356. The pressing block 357 drives the pressing cylinder 358 to move downward synchronously. The limiting plate 38 at the upper end of the pressing cylinder 358 moves downward and adheres to the wire, completing the secondary clamping and forming a double clamping and fixing structure. During this process, the tension spring 354 is stretched and deformed.

[0040] When the limiting plate 38 is attached to the wire, the buffer block 383 first contacts the wire. The squeezing force of the wire pushes the buffer block 383 to move upward along the fixing groove 381, squeezing the buffer spring 382 to deform it. The elastic force of the buffer spring 382 offsets part of the squeezing force, preventing damage to the wire sheath. At the same time, the inferior arc groove 384 fits with the outer wall of the wire, improving the clamping fit.

[0041] After the wire clamping is completed, the extrusion insulation cover 37 is installed on the side of the extrusion plate 35 near the nut 36, which, together with the fixed insulation cover 32, forms a double insulation protection structure to ensure the safety of live work.

[0042] When it is necessary to disassemble the wire, first remove the compression insulation cover 37, and turn the nut 36 in the opposite direction to release the compression pressure on the compression plate 35; the adjusting spring 34 returns to its deformation, the restoring spring 3132 pushes the annular disk 313 to reset along the limiting groove 312, the tension spring 354 contracts and pulls the elliptical disk 352 to reset along the elliptical groove 351, the compression spring 3183 returns to its deformation and pushes the ring 3182 to move upward, driving the adjusting rod 318 to reset. All moving parts synchronously return to their initial positions, releasing the clamp on the wire and completing the disassembly.

[0043] The description herein is provided to enable those skilled in the art to implement or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of the disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A linear rod insulator for a live-line working robot, comprising a connecting post (1) and an insulator skirt (2), characterized in that, It also includes a wire clamp mechanism (3), on which an insulator skirt (2) is fixedly installed. The upper end of the connecting column (1) is bolted to the wire clamp mechanism (3). The wire clamp mechanism (3) moves horizontally by pressing the pressing plate (35) with a nut (36). The moving pressing plate (35) presses the adjusting spring (34). The deformed adjusting spring (34) simultaneously presses the annular disk (313) and the elliptical disk (352) to move horizontally. The horizontally moving annular disk (313) drives the sliding block (3133) through the pressing block (3133). 315) Vertical movement, the sliding block (315) drives the adjusting rod (318) to move vertically, and the adjusting rod (318) completes the rotation and downward movement synchronously under the guidance of the groove inside the left fixed block (316) and the right fixed block (317) to achieve the initial clamping of the wire; at the same time, the horizontally moving elliptical disk (352) drives the extrusion cylinder (358) and the limiting plate (38) to move vertically through the cooperation of the support block (355) and the pressing block (357) to achieve the secondary clamping of the wire, forming a double clamping and fixing structure.

2. A linear pole insulator for a live-line working robot according to claim 1, characterized in that: The clamp mechanism (3) includes a fixed plate (31), a fixed insulating cover (32), a screw (33), an adjusting spring (34), a pressing plate (35), a nut (36), and a pressing insulating cover (37). The upper end of the connecting column (1) is bolted to the fixed plate (31). The fixed plate (31) has an L-shaped cross-section. The two sides of the fixed plate (31) are fixedly installed with guardrails (311). The fixed plate (31) is installed with a fixed insulating cover (32). The fixed insulating cover (32) is made up of two insulating covers spliced ​​together. A screw (33) passes through the fixed plate (31). An adjusting spring (34) is installed on the screw (33). The front end of the screw (33) passes through the pressing plate (35). A nut (36) is installed on the screw (33). The pressing plate (35) is located between the nut (36) and the adjusting spring (34). The pressing plate (35) is installed with a pressing insulating cover (37) on the side of the pressing plate (35) close to the nut (36).

3. A linear pole insulator for a live-line working robot according to claim 2, characterized in that: The fixed plate (31) has a limiting groove (312) inside, and an annular disk (313) is slidably installed inside the annular groove. The screw (33) passes through the center of the annular disk (313). Limiting holes (3131) are arrayed on one end of the annular disk (313) near the adjusting spring (34). A restoring spring (3132) is snapped into the inside of the limiting hole (3131). The other end of the restoring spring (3132) is snapped into the inside of the fixed plate (31). Compression blocks (3133) are fixedly installed on both sides of the annular disk (313). The cross-sectional shape of the compression block (3133) is triangular.

4. A linear pole insulator for a live-line working robot according to claim 3, characterized in that: The limiting groove (312) is connected to sliding grooves (314) on both sides. A sliding block (315) is slidably installed below the sliding groove (314). A rectangular groove (3151) is opened on the side of the sliding block (315) near the limiting groove (312). A triangular block (3152) is fixedly installed on the sliding block (315) in the rectangular groove (3151). The inclined surface of the triangular block (3152) corresponds to the inclined surface of the extrusion block (3133). The fixing plate ( 31) A left fixing block (316) is fixedly installed in the left sliding groove (314) facing the adjusting spring (34), and a right fixing block (317) is fixedly installed in the right sliding groove (314). The left fixing block (316) and the right fixing block (317) are both located at the upper end of the pressing block (3133). An adjusting rod (318) is rotatably installed at the upper end of the fixing block. The two adjusting rods (318) pass through the left fixing block (316) and the right fixing block (317).

5. A linear pole insulator for a live-line working robot according to claim 4, characterized in that: The left fixing block (316) has a sliding groove (3161) inside, which is composed of a counter-rotating groove and a vertical groove. The counter-rotating groove in the sliding groove (3161) has a length of 1 / 4 of the circumference. The right fixing block (317) has a rotating groove (3171) inside, which is composed of a clockwise rotating groove and a vertical groove. The clockwise rotating groove in the rotating groove (3171) has a length of 1 / 4 of the circumference.

6. A linear pole insulator for a live-line working robot according to claim 5, characterized in that: Two adjusting rods (318) are fixedly mounted with protrusions (3181), which are located in the sliding groove (3161) and the rotating groove (3171) respectively. A ring (3182) is fixedly mounted on the adjusting rod (318), and a compression spring (3183) is engaged at the lower end of the ring (3182). The lower ends of the two compression springs (3183) are respectively mounted on the upper ends of the left fixing block (316) and the right fixing block (317).

7. A linear pole insulator for a live-line working robot according to claim 6, characterized in that: The extrusion plate (35) has an elliptical groove (351) inside, and an elliptical disk (352) is slidably installed inside the elliptical groove (351). An extrusion hole (353) is opened on the side of the elliptical disk (352) near the adjusting spring (34). A tension spring (354) is snapped into the extrusion hole (353). The other end of the tension spring (354) is snapped into the inner wall of the extrusion plate (35). A support block (355) is fixedly installed at the top of the elliptical disk (352). The cross-sectional shape of the support block (355) is set as a right trapezoid. An extrusion groove (356) is connected to the top of the elliptical groove (351).

8. A linear pole insulator for a live-line working robot according to claim 7, characterized in that: A pressing block (357) is installed inside the extrusion groove (356). The cross-sectional shape of the pressing block (357) is a right trapezoid. The upper bottom of the pressing block (357) corresponds to the upper bottom of the support block (355). The inclined surfaces of the extrusion plate (35) and the support plate also correspond to each other. An extrusion cylinder (358) is fixedly installed on the extrusion plate (35). The extrusion cylinder (358) slides inside the extrusion groove (356).

9. A linear pole insulator for a live-line working robot according to claim 8, characterized in that: Limiting plates (38) are fixedly installed on the upper end of the extrusion cylinder (358) and the upper end of the adjusting rod (318). A fixing groove (381) is provided inside the limiting plate (38). Buffer springs (382) are installed in a row inside the fixing groove (381). A buffer block (383) is engaged at the lower end of the buffer spring. The buffer block slides inside the fixing groove (381). A minor arc groove (384) is provided at the lower end of the buffer block (383).

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