Isolation switch clamp maintenance device and isolation switch

Abstract

The utility model provides an isolation switch clamp maintenance device and an isolation switch, the isolation switch clamp maintenance device comprises a support handle and a pin dismounting mechanism, the support handle is recessed to form a dismounting space for a clamp to penetrate through, the bottom of the support handle is provided with a positioning channel corresponding to a pin rod of the clamp, and the top of the support handle is provided with a positioning through hole penetrating along the vertical direction. The pin dismounting mechanism comprises a pin dismounting assembly and a pushing assembly, the pin dismounting assembly is movably connected into the positioning through hole in the vertical direction, the top end of the pushing assembly is inserted into the positioning through hole, and the bottom end of the pushing assembly is used for abutting against the top end of a pin rod of the forceps holder. Therefore, the pin rod for mounting the clamp can be conveniently dismounted through the pin dismounting mechanism, the pin rod is temporarily stored in the positioning through hole for storage, dismounting and mounting are convenient, the problem that parts fall off during high-altitude operation is avoided, the supporting handle is used for facilitating operation and control of technicians, and therefore the purpose that the clamp can be independently overhauled and replaced without dismounting a conductive arm of the disconnecting switch is achieved. The maintenance efficiency is greatly improved, and machining resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage switches, in particular to an isolating switch clamp maintenance device and an isolating switch. Background Art

[0002] With the rapid development of the power system, the requirements for power grid security, reliability, and automation level of electrical switchgear are constantly increasing. The control of key quality points of high-voltage disconnectors directly affects the safe operation of the entire power grid. The clamping force of clamp-type high-voltage disconnectors is an important quality parameter.

[0003] At present, various disconnectors have been in operation in substations across the country for many years. The natural aging of various components of the equipment and the need for maintenance at the end of their life will be a problem that substations across the country will face in the future. One of the key structures of clamp-type disconnectors such as GW16 and 17 disconnectors is the clamp part. In the existing technology, the entire set of switches is usually replaced. Although this is the simplest maintenance solution, it wastes a lot of resources, and the factory production period is longer than the power station maintenance period, which will also slow down the progress of the entire maintenance work and affect the power supply time.

[0004] In view of this, it is necessary to propose an isolating switch clamp maintenance device and an isolating switch to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main purpose of the utility model is to provide an isolating switch clamp maintenance device to solve the problem in the prior art that directly replacing a whole set of switches wastes resources and has a long production period.

[0006] To achieve the above-mentioned purpose, the present invention provides a disconnector clamp maintenance device, comprising a support handle and a dismantling mechanism, wherein the dismantling mechanism is provided on the support handle; wherein,

[0007] The support handle is recessed to form a disassembly and assembly space for the clamp of the disconnector to pass through, the bottom of the support handle is provided with a positioning channel corresponding to the pin of the clamp, and the top of the support handle is provided with a positioning through hole passing through vertically;

[0008] The pin removal mechanism includes a pin removal assembly and a pushing assembly. The pin removal assembly is movably connected to the positioning through hole in the vertical direction. The pushing assembly is used to be arranged between the pin rod of the clamp and the pin removal assembly. The top end of the pushing assembly is inserted into the positioning through hole, and the bottom end of the pushing assembly is used to be abutted against the top end of the pin rod of the clamp.

[0009] Preferably, the pin removal assembly includes a pin removal screw, a reducer and a rocker, the reducer is fixed to the top of the support handle, the reducer has a connecting channel running vertically, the connecting channel is correspondingly arranged above the positioning through hole, the pin removal screw sequentially passes through the connecting channel and the positioning through hole and extends out of the positioning through hole, and one end of the rocker is connected to the input end of the reducer;

[0010] Wherein, the rocker rotates to drive the pin removal screw to move vertically through the reducer.

[0011] Preferably, the pushing assembly includes a positioning sleeve and a push rod, the positioning sleeve is used to be sleeved on the pin rod of the clamp, the bottom end of the push rod is inserted into the positioning sleeve and abuts against the pin rod of the clamp, and the top end of the push rod is inserted into the positioning through hole.

[0012] Preferably, it also includes a limit assembly, which includes two limit frames relatively arranged on both sides of the support handle, the limit frames are connected to the side walls of the support handle, the reducer is arranged between the two limit frames, and the rocker is arranged on the outside of the limit frames.

[0013] Preferably, the pin removal assembly further includes a screw stop sleeve arranged corresponding to the pin removal screw, the screw stop sleeve is fixed to the bottom end of the positioning through hole, and the pin removal screw passes through the screw stop sleeve.

[0014] Preferably, the longitudinal section of the disassembly and assembly space is stepped.

[0015] Preferably, one side of the pin removal screw is radially inwardly recessed to form a vertical slide groove, and the inner ring of the screw stop sleeve is radially inwardly protruded to form a vertical slider matched with the vertical slide groove, and the vertical slider is clamped in the vertical slide groove.

[0016] Preferably, the aperture at the bottom end of the positioning channel is smaller than the aperture at the top end of the positioning channel.

[0017] Preferably, the rocker includes a control part and a connecting part, the connecting part is arranged perpendicular to the connecting part, the inner ring of the input end of the reducer is radially protruded outward to form a convex groove, and the connecting part is protruded outward to form a protrusion, and the rocker is inserted into the convex groove through the protrusion to be connected to the input end of the reducer.

[0018] The present application also provides an isolating switch, including an isolating switch body, the isolating switch body including a conductive arm and a clamp, one end of the clamp being connected to the conductive arm via a pin rod, and also including the isolating switch clamp maintenance device as described above, the clamp passing through the disassembly and assembly space of the isolating switch clamp maintenance device, the bottom end of the pin rod being inserted into the positioning channel of the isolating switch clamp maintenance device, and the top end of the pin rod being arranged to abut against the bottom of the pushing assembly of the isolating switch clamp maintenance device.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The utility model provides an isolating switch clamp maintenance device and an isolating switch, including a support handle and a dismantling pin mechanism, the dismantling pin mechanism is arranged on the support handle, the support handle is recessed to form a dismantling space for the isolating switch clamp to pass through, the bottom of the support handle is provided with a positioning channel corresponding to the pin rod of the clamp, and the top of the support handle is provided with a positioning through hole passing through vertically, the dismantling pin mechanism includes a dismantling pin assembly and a pushing assembly, the dismantling pin assembly is movably connected to the positioning through hole along the vertical direction, the pushing assembly is used to be arranged between the pin rod of the clamp and the dismantling pin assembly, the top end of the pushing assembly is inserted into the positioning through hole, and the bottom end of the pushing assembly is used to be arranged to abut against the top end of the pin rod of the clamp. In this way, the pin rod for installing the clamp can be easily removed through the pin removal mechanism, and the pin removal assembly is used to push the pushing assembly to push the pin rod in and temporarily store it in the positioning through hole for storage. Disassembly and assembly are convenient, and there will be no problem of parts falling during high-altitude operations. The support handle is convenient for technicians to operate, so that the purpose of repairing and replacing the clamp separately can be achieved without disassembling the conductive arm of the disconnector, which greatly improves the maintenance efficiency and saves processing resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a schematic 3D assembly diagram of the overall structure in one embodiment of the present invention;

[0023] Figure 2 It is a three-dimensional schematic diagram of a clamp repair device in one embodiment of the present utility model;

[0024] Figure 3 This is a three-dimensional schematic diagram of a reducer in one embodiment of the present utility model;

[0025] Figure 4 This is a three-dimensional schematic diagram of a support handle in one embodiment of the present utility model;

[0026] Figure 5 This is a three-dimensional schematic diagram of a screw rod anti-rotation sleeve in one embodiment of the utility model;

[0027] Figure 6 This is a three-dimensional schematic diagram of a rocker in one embodiment of the present invention;

[0028] Figure 7 It is a three-dimensional schematic diagram of a pin removal screw rod in one embodiment of the utility model.

[0029] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.

[0030] Description of Figure Numbers:

[0031] 10. Support handle; 110. Disassembly and assembly space; 120. Positioning channel; 130. Positioning through hole; 20. Dismantling pin assembly; 210. Dismantling pin screw; 211. Vertical slide groove; 220. Reducer; 221. Connecting channel; 222. Convex groove; 230. Rocker; 231. Control part; 232. Connecting part; 2321. Bump; 240. Screw stop sleeve; 241. Vertical slider; 30. Pushing assembly; 310. Positioning sleeve; 320. Push rod; 40. Limiting assembly; 410. Limiting frame; 50. Isolating switch body; 510. Conductive arm; 520. Clamp; 530. Pin rod. DETAILED DESCRIPTION

[0032] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0036] Please see the attached Figure 1-7 In one embodiment, the present invention provides an isolating switch clamp 520 maintenance device, comprising a support handle 10 and a dismantling mechanism, wherein the dismantling mechanism is provided on the support handle 10. First of all, it should be noted that, unlike the prior art which usually replaces the entire set of switches, although it is the simplest maintenance solution, it wastes a lot of resources, and the factory production period and the power station maintenance period are longer, which will also slow down the progress of the entire maintenance work and affect the power supply time. The present application solves the above-mentioned defects in the prior art by providing an isolating switch clamp 520 maintenance device and an isolating switch, as follows:

[0037] The support handle 10 is recessed to form a disassembly and assembly space 110 for the clamp 520 of the isolating switch to pass through. The bottom of the support handle 10 is provided with a positioning channel 120 corresponding to the pin rod 530 of the clamp 520, and the top of the support handle 10 is provided with a positioning through hole 130 that passes through vertically; the dismantling mechanism includes a dismantling pin assembly 20 and a pushing assembly 30, the dismantling pin assembly 20 is movably connected to the positioning through hole 130 along the vertical direction, the pushing assembly 30 is used to be arranged between the pin rod 530 of the clamp 520 and the dismantling pin assembly 20, the top end of the pushing assembly 30 is inserted into the positioning through hole 130, and the bottom end of the pushing assembly 30 is used to be arranged to abut against the top end of the pin rod 530 of the clamp 520.

[0038] Specifically, the maintenance device of the isolating switch clamp 520 in the present application includes a support handle 10 and a dismantling mechanism. The support handle 10 is used for the installation of the dismantling mechanism. At the same time, the technician can replace the corresponding components in conjunction with the support handle 10 during operation. It itself can be a rectangular block. Therefore, in order to facilitate maintenance, a disassembly space 110 is formed inwardly in the support handle 10. During maintenance, the clamp 520 can pass through the disassembly space 110 so that the pin rod 530 installation part of the clamp 520 can be arranged in the disassembly space 110; and the dismantling mechanism is used to remove the pin rod 530 of the clamp 520. After disassembly, only the clamp 520 needs to be replaced after replacement to complete the maintenance, without the need to remove and replace the entire conductive arm 510, which greatly improves the maintenance efficiency and saves production resources.

[0039] The pin removal mechanism includes a pin removal assembly 20 and a push assembly 30, and the pin removal assembly 20 and the push assembly 30 cooperate with each other, and the push assembly 30 is set between the pin rod 530 of the clamp 520 and the pin removal assembly 20. In this way, the push assembly 30 is pushed when the pin removal assembly 20 moves downward, so that the pin rod 530 on one end of the clamp 520 close to the conductive arm 510 is pushed downward under the pressure of the push assembly 30 to complete the disassembly. Therefore, in order to facilitate the installation of the pin removal assembly 20, a positioning through hole 130 is provided at the top of the support handle 10 along the vertical direction, so that the pin removal assembly 20 can be movably connected to the clamp 520 along the vertical direction. and because the operation is carried out at high altitude, if the pin rod 530 is directly pushed out, it is easy to fall off, and if it cannot be stored in time, it will be troublesome to install, which affects efficiency. Therefore, a positioning channel 120 corresponding to the pin rod 530 of the clamp 520 can be opened at the bottom of the support handle 10. When the pin removal assembly 20 moves downward to push the pushing assembly 30, the pushing assembly 30 can align the positioning channel 120 with the pin rod 530 directly below the pin rod 530 before pushing the pin rod 530 downward. In this way, the pin rod 530 can fall into the positioning channel 120 when the pin rod 530 is pushed out. After the pin rod 530 is taken out and stored, the next pin rod 530 can be disassembled.

[0040] As a preferred embodiment of the present invention, the pin removal assembly 20 includes a pin removal screw rod 210, a reducer 220 and a rocker 230. The reducer 220 is fixed on the top of the support handle 10. The reducer 220 has a connecting channel 221 that passes through vertically. The connecting channel 221 is correspondingly arranged above the positioning through hole 130. The pin removal screw rod 210 passes through the connecting channel 221 and the positioning through hole 130 in sequence and extends out of the positioning through hole 130. One end of the rocker 230 is connected to the input end of the reducer 220; wherein, the rocker 230 rotates to drive the pin removal screw rod 210 to move vertically through the reducer 220.

[0041] It should be noted that the pin removal screw rod 210 is used to move up and down to push the pushing assembly 30, and the reducer 220 is used to drive the pin removal screw rod 210 to move. It is a commonly used driving mechanism in this field and is well known. Therefore, its driving principle and internal structure are not described in detail here. Since the operation is in the air and the on-site wiring is very inconvenient, the input end of the reducer 220 is replaced by the rocker 230, and the input end of the reducer 220 is manually rotated to drive and drive the pin removal screw rod 210. 10 moves vertically; further, in order to facilitate the penetration of the pin removal screw rod 210, a connecting channel 221 penetrating vertically is provided on the reducer 220, and the connecting channel 221 is set correspondingly to the positioning through hole 130. The corresponding setting here means that the size of the positioning through hole 130 and the size of the connecting channel 221 are consistent and are set on the same axis; wherein, the technician can drive and adjust the rocker 230 to move up and down by shaking the rocker 230 forward / reverse, thereby realizing the switching of the state before and during disassembly.

[0042] As a preferred embodiment of the present invention, the pushing assembly 30 includes a positioning sleeve 310 and a push rod 320. The positioning sleeve 310 is used to be sleeved on the pin rod 530 of the clamp 520. The bottom end of the push rod 320 is inserted into the positioning sleeve 310 and is abutted against the pin rod 530 of the clamp 520. The top end of the push rod 320 is inserted into the positioning through hole 130.

[0043] When the pin 530 is pushed down, the push rod 320 is pressed against the bottom end of the pin 530 and the push rod 320 is pressed against the bottom end of the pin 530.

[0044] As a preferred embodiment of the present invention, it also includes a limit assembly 40, which includes two limit frames 410 relatively arranged on both sides of the support handle 10, the limit frames 410 are connected to the side walls of the support handle 10, the reducer 220 is arranged between the two limit frames 410, and the rocker 230 is arranged on the outside of the limit frame 410.

[0045] It is worth noting that the limit assembly 40 is used to limit the movement of the reducer 220 to ensure that the reducer 220 can be firmly installed when driving, thereby ensuring that the pin removal screw 210 can move up and down smoothly. It specifically includes two limit frames 410 relatively arranged on both sides of the support handle 10 to set the reducer 220 between the two limit frames 410. The limit frame 410 can be connected to the side wall of the support handle 10 by bolt connection, so that it is more convenient to disassemble or adjust the position; it can be understood that the limit frame 410 itself has an open space because it is a frame structure, and this open space can be used for the connection of the rocker 230 arranged on the outside of the limit frame 410, so as not to limit the rotation of the rocker 230.

[0046] As a preferred embodiment of the present invention, the pin removal assembly 20 also includes a screw stop sleeve 240 arranged corresponding to the pin removal screw 210, the screw stop sleeve 240 is fixed to the bottom end of the positioning through hole 130, and the pin removal screw 210 is arranged through the screw stop sleeve 240.

[0047] It is worth noting that the screw stop sleeve 240 is used to limit the rotation of the pin removal screw 210 to achieve vertical movement, so it needs to be set corresponding to the pin removal screw 210. The corresponding setting here means that the cross-sectional size and shape of the pin removal screw 210 and the screw stop sleeve 240 are consistent, and they are set on the same axis; and it is fixed to the bottom end of the positioning through hole 130 so that the bottom end of the pin removal screw 210 can pass through the screw stop sleeve 240.

[0048] Furthermore, the longitudinal section of the disassembly and assembly space 110 is stepped.

[0049] It should be noted that if Figure 4 As shown, the portion of the disassembly and assembly space 110 that is more recessed under the stepped setting can form a deeper groove. This groove with a larger recess depth is the hand-held portion for the technician during operation, making hand-held operation convenient; and the remaining portion is used for the clamp 520 to pass through.

[0050] Furthermore, one side of the dismantling screw rod 210 is radially inwardly recessed to form a vertical slide groove 211, and the inner ring of the screw rod anti-rotation sleeve 240 is radially inwardly protruded to form a vertical slider 241 matched with the vertical slide groove 211, and the vertical slider 241 is clamped in the vertical slide groove 211.

[0051] It should be understood that the vertical slide groove 211 is used to match the vertical slider 241 to cooperate in limiting the movement of the pin removal screw rod 210, so that the vertical slider 241 is stuck in the vertical slide groove 211 to move up and down along the vertical slide groove 211.

[0052] Furthermore, the aperture of the bottom end of the positioning channel 120 is smaller than the aperture of the top end of the positioning channel 120 .

[0053] It should be noted that, when the pin rod 530 is received in the positioning channel 120 , it will not fall out from the bottom end of the positioning channel 120 .

[0054] Furthermore, the rocker 230 includes a control part 231 and a connecting part 232, the connecting part 232 is arranged perpendicular to the connecting part 232, the inner ring of the input end of the reducer 220 is radially protruded outward to form a convex groove 222, and the connecting part 232 is protruded outward to form a protrusion 2321, and the rocker 230 is inserted into the convex groove 222 through the protrusion 2321 to be connected to the input end of the reducer 220.

[0055] It should be noted that the operating part 231 is used for technicians to operate and rotate by hand, and its extended setting is used to extend the lever arm, making rotation easier, and the connecting part 232 is used to connect with the reducer 220, and it is protruded outward to form a protrusion 2321, and the inner ring of the input end of the reducer 220 is protruded radially outward to form a protrusion groove 222, and the protrusion 2321 is inserted into the protrusion groove 222. In this way, when the rocker 230 is rotated circumferentially, the protrusion 2321 pushes the input end groove of the reducer 220 to rotate together, so as to drive the pin removal screw 210 to move vertically up and down through the transmission of the reducer 220.

[0056] The present application also provides an isolating switch, including an isolating switch body 50, wherein the isolating switch body 50 includes a conductive arm 510 and a clamp 520, one end of the clamp 520 is connected to the conductive arm 510 through a pin 530, and also includes the isolating switch clamp 520 maintenance device as described above, wherein the clamp 520 passes through the disassembly and assembly space 110 of the isolating switch clamp 520 maintenance device, the bottom end of the pin 530 is inserted into the positioning channel 120 of the isolating switch clamp 520 maintenance device, and the top end of the pin 530 is abutted against the bottom of the pushing assembly 30 of the isolating switch clamp 520 maintenance device.

[0057] It is understood that the isolating switch in the present application is mainly applied to the GW16 / 17 type high-voltage isolating switch. The isolating switch body 50 mainly includes a conductive arm 510 and a clamp 520. When disassembling, the pin 530 at the tail end of the clamp 520 is mainly connected to the conductive arm 510. Therefore, to facilitate understanding by those skilled in the art, the specific operation process of the present application as a preferred embodiment is briefly described as follows:

[0058] The technician first shakes the rocker 230 to drive the pin removal screw rod 210 to rise through the reducer 220, and raises the bottom end of the pin removal screw rod 210 to be flush with the screw rod anti-rotation sleeve 240 to keep the opening of the disassembly space 110 as large as possible; then places the support handle 10 of the entire clamp 520 maintenance device into the tail of the clamp 520 part of the conductive arm 510, so that the part of the clamp 520 close to one end of the conductive arm 510 is placed in the disassembly space 110, and aligns the positioning channel 120 of the support handle 10 with the bottom end of the pin rod 530 to be disassembled, and then puts the positioning sleeve 310 on the pin rod 530, so that the bottom end of the push rod 320 is inserted into the positioning sleeve 310, and the top end of the push rod 320 is inserted into the positioning through hole 1 30 (screw rod anti-rotation sleeve 240); then the technician starts to shake the rocker 230 in the reverse direction to drive the pin removal screw 210 to descend through the reducer 220. Under the pressure of the pin removal screw 210 descending, the push rod 320 pushes the pin rod 530 downward. At this time, it is necessary to confirm that the partially exposed pin rod 530 is inserted in the positioning channel 120. After confirmation, continue to shake the rocker 230 to press the pin rod 530 out into the positioning channel 120. After the pin rod 530 stored in the positioning channel 120 is stored, the disassembly of the next pin rod 530 can be started. When all the pin rods 530 of the clamp 520 used to connect with the conductive arm 510 are disassembled, the clamp 520 can be disassembled for inspection and replacement.

[0059] It is understandable that, since it is an aerial operation, a net bag-like storage device can be prepared to collect other small accessories that fall.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A clamp maintenance device for an isolating switch, characterized in that: It includes a support handle and a dismantling mechanism, wherein the dismantling mechanism is arranged on the support handle; wherein, The support handle is recessed to form a disassembly and assembly space for the clamp of the disconnector to pass through, the bottom of the support handle is provided with a positioning channel corresponding to the pin of the clamp, and the top of the support handle is provided with a positioning through hole passing through vertically; The pin removal mechanism includes a pin removal assembly and a pushing assembly. The pin removal assembly is movably connected to the positioning through hole in the vertical direction. The pushing assembly is used to be arranged between the pin rod of the clamp and the pin removal assembly. The top end of the pushing assembly is inserted into the positioning through hole, and the bottom end of the pushing assembly is used to be abutted against the top end of the pin rod of the clamp.

2. The isolating switch clamp maintenance device according to claim 1, characterized in that: The pin removal assembly includes a pin removal screw, a reducer and a rocker, wherein the reducer is fixed to the top of the support handle, and the reducer has a connecting channel running vertically, and the connecting channel is correspondingly arranged above the positioning through hole, and the pin removal screw sequentially passes through the connecting channel and the positioning through hole and extends out of the positioning through hole, and one end of the rocker is connected to the input end of the reducer; Wherein, the rocker rotates to drive the pin removal screw to move vertically through the reducer.

3. The isolating switch clamp maintenance device according to claim 2, characterized in that: The pushing assembly includes a positioning sleeve and a push rod, the positioning sleeve is used to be sleeved on the pin rod of the clamp, the bottom end of the push rod is inserted into the positioning sleeve and abuts against the pin rod of the clamp, and the top end of the push rod is inserted into the positioning through hole.

4. The isolating switch clamp maintenance device according to claim 2, characterized in that: It also includes a limit assembly, which includes two limit frames relatively arranged on both sides of the support handle, the limit frames are connected to the side walls of the support handle, the reducer is arranged between the two limit frames, and the rocker is arranged on the outside of the limit frames.

5. The isolating switch clamp maintenance device according to claim 2, characterized in that: The pin removal assembly also includes a screw rod anti-rotation sleeve arranged corresponding to the pin removal screw rod, the screw rod anti-rotation sleeve is fixed to the bottom end of the positioning through hole, and the pin removal screw rod passes through the screw rod anti-rotation sleeve.

6. The isolating switch clamp maintenance device according to claim 1, characterized in that: The longitudinal section of the disassembly and assembly space is stepped.

7. The isolating switch clamp maintenance device according to claim 5, characterized in that: One side of the pin removal screw is recessed radially inward to form a vertical slide groove, and the inner ring of the screw stop sleeve is convex radially inward to form a vertical slider matched with the vertical slide groove, and the vertical slider is clamped in the vertical slide groove.

8. The isolating switch clamp maintenance device according to claim 1, characterized in that: The aperture at the bottom end of the positioning channel is smaller than the aperture at the top end of the positioning channel.

9. The isolating switch clamp maintenance device according to claim 2, characterized in that: The rocker includes a control part and a connecting part, the connecting part is arranged perpendicular to the connecting part, the inner ring of the input end of the reducer is radially protruded outward to form a convex groove, and the connecting part is protruded outward to form a protrusion, and the rocker is inserted into the convex groove through the protrusion to be connected to the input end of the reducer.

10. An isolating switch, comprising an isolating switch body, wherein the isolating switch body comprises a conductive arm and a clamp, wherein one end of the clamp is connected to the conductive arm via a pin, wherein: It also includes the isolating switch clamp maintenance device according to any one of claims 1 to 9, wherein the clamp passes through the disassembly and assembly space of the isolating switch clamp maintenance device, the bottom end of the pin rod is inserted into the positioning channel of the isolating switch clamp maintenance device, and the top end of the pin rod is arranged to abut against the bottom of the pushing assembly of the isolating switch clamp maintenance device.

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