Auxiliary wire connector for power grid maintenance

Abstract

The auxiliary wire connector comprises a double-end clamping assembly used for clamping a to-be-overhauled part of a strip-shaped cable, the outer surface of the strip-shaped cable is sleeved with an auxiliary mechanism, and the auxiliary mechanism is used for cutting an insulating layer around the opposite ends of the two sections of the strip-shaped cable after the strip-shaped cable is cut into the two sections of the strip-shaped cable and pulling the two sections of the strip-shaped cable outwards to remove the two sections of the strip-shaped cable. The auxiliary mechanism comprises an annular cylinder surrounding the outer side of the strip-shaped cable, a cutting knife assembly used for cutting an insulating layer of the strip-shaped cable is arranged on one side of the annular cylinder, and an end clamping assembly used for being matched with the double-end clamping assembly to enable a to-be-overhauled part of the sheared strip-shaped cable to be in a straightened state is installed on the annular cylinder. The annular cylinder is further provided with a driving assembly used for driving the cutting knife assembly to rotate in the circumferential direction of the surface of the strip-shaped cable to cut the insulating layer. According to the invention, insulating layers on the surfaces of the opposite ends of the two strip-shaped cables formed after shearing can be removed, slippage between the end face clamping assembly and the to-be-removed insulating layers is effectively avoided, and the continuity of the removal process is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary wiring, in particular to an auxiliary wiring device for power grid maintenance. Background Art

[0002] In power grid maintenance, cable maintenance is a routine item. Due to long-term exposure to the external environment, the surface of the cable is prone to damage. Subsequent staff will need to remove the damaged area during the maintenance stage. In actual operation, it is necessary to clamp both sides of the broken part of the cable, and then cut off the damaged area. Then the two cut sections of the cable need to be repaired and connected. At this stage, it is necessary to remove the insulation layer on the surface of the connecting end of the two sections of the cable, cross-twist the exposed wires together, and then wrap a layer of insulating material at the connection of the wires to achieve the wiring of the wires. Under normal circumstances, after a circular cut along the surface of the cable, it is necessary to pinch the surface of the insulation layer manually, and then apply a pulling force to one side to remove the insulation layer. In this process, since the surface of the insulation layer is usually smooth, the friction of the hand is insufficient when pulling, which can easily cause slipping, thereby affecting the efficiency of removing the insulation layer after circular cutting. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an auxiliary connector for power grid maintenance to solve the problem of easy slippage when pulling out the insulation layer of the cable surface after ring cutting mentioned in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: an auxiliary connector for power grid maintenance, comprising a double-head clamping assembly for clamping a portion of a strip cable to be repaired, wherein the outer surface of the strip cable is provided with an auxiliary mechanism for cutting the insulation layer around the opposite ends of the two strip cables and pulling them outward to remove the insulation layer after the strip cable is cut into two sections;

[0005] The auxiliary mechanism includes an annular cylinder surrounding the outside of the strip cable, a cutting knife assembly for cutting the insulating layer of the strip cable is arranged on one side of the annular cylinder, an end clamping assembly is installed on the annular cylinder for cooperating with a double-head clamping assembly to keep the part of the strip cable to be inspected in a straight state after shearing, and a driving assembly is also installed on the annular cylinder for driving the cutting knife assembly to rotate circumferentially along the surface of the strip cable to cut the insulating layer. A toggle assembly is installed on the double-head clamping assembly for rotating and moving the annular cylinder in a horizontal direction after the insulating layer on the surface of a section of the strip cable is removed.

[0006] Preferably, the toggle assembly comprises an integral plate mounted on the annular cylinder, a collar structure is mounted on the back of the integral plate, and circular hole grooves are provided on both sides of the collar structure;

[0007] A linear guide rod is installed on the double-head clamping assembly, and a bent strip plate is slidably sleeved on the outer surface of the linear guide rod. A disc structure that fits the inside of the ring structure is fixedly installed at the front end of the bent strip plate, and spring snaps extending into the inside of the circular hole groove are installed on both sides of the disc structure.

[0008] Preferably, the cutting knife assembly includes a thickening block attached to the side of the driving assembly away from the annular cylinder, a blade is detachably mounted on one side of the thickening block by means of screws, a rectangular sleeve is attached to the side of the blade away from the thickening block, a T-shaped plate is inserted into the interior of the rectangular sleeve, locking pins are detachably connected between the two sides of the T-shaped plate and the driving assembly, and an arc plate is installed at the bottom of the rectangular sleeve.

[0009] Preferably, a spring structure is connected between the bottom wall of the rectangular sleeve and the bottom of the T-shaped plate, which is used to lower the height of the arc plate when the insulating layer is cut and the cutting gap is larger than the width of the arc plate.

[0010] Preferably, an annular groove is provided on one side of the annular cylinder;

[0011] The driving assembly includes a connecting ring rotatably embedded in the annular groove, a gear ring detachably combined with the blade and the T-plate is sleeved on the outer surface of the connecting ring, a driving motor is installed on the outer surface of the annular cylinder, and the output end of the driving motor is transmission-connected to a spur gear meshing with the gear ring.

[0012] Preferably, the end clamping assembly comprises clamping plates disposed in the inner cavity of the annular cylinder and arranged in an up-and-down mirror image, and a plurality of conical heads are installed on opposite sides of the two clamping plates;

[0013] The diameter of the conical head gradually decreases from one end close to the fixture plate to the other end, a groove is provided at the end with the smaller diameter of the conical head, and the height of the conical heads in the front and rear axes gradually increases from the middle to both sides.

[0014] Preferably, an arc-shaped through groove is opened on the outer surface of the annular cylinder, a rectangular plate is installed on the outer surface of the annular cylinder, and an electric screw rod 1 for driving the two clamp plates to adjust the spacing is installed on the rectangular plate.

[0015] Preferably, the double-head clamping assembly includes a base plate installed at the bottom of the linear guide rod, an electric screw rod 2 is installed on the base plate, two groove plates are slidably sleeved on the electric screw rod 2, positioning clamps are fixedly installed on the top surfaces of the two groove plates, and a pushing assembly for clamping two places on the cable surface to maintain the same frequency is installed at the bottom of the base plate.

[0016] Preferably, the pushing assembly includes two movable clamps slidably engaged on the channel plate, a guide round rod located below the channel plate is inserted between the two movable clamps, and an electric push rod is installed in the middle of the bottom surface of the seat plate for driving the movable clamps to slide along the path of the channel plate.

[0017] By means of the above technical solution, the present invention provides an auxiliary connector for power grid maintenance, which has at least the following beneficial effects:

[0018] 1. The present invention can achieve the purpose of removing the insulation layer on the surface of the opposite end of the two strip-shaped cables formed after shearing, and during the removal, it can effectively avoid slipping between the end face clamping component and the insulation layer to be removed, thereby ensuring the continuity of the removal process and ultimately ensuring the efficiency of insulation layer removal.

[0019] 2. The present invention can realize the flipping of the annular cylinder, so that the end clamping assembly and the cutting knife assembly can exchange directions with each other and stably maintain the directions, thereby facilitating the stripping of the insulation layer at the opposite ends of the two strip-shaped cables after shearing.

[0020] 3. In the process of pushing the bent plate to make the end clamping assembly peel off the insulating layer after ring cutting, the arc plate can be quickly moved downward by a set distance under the push of the spring structure, so that one side of the arc plate fits with the side of the lower half of the blade, thereby effectively avoiding the lower half of the blade from breaking when the insulating layer is continuously peeled off.

[0021] 4. The clamping structure of the present invention for clamping both sides of the cable to be repaired can uniformly drive clamping or loosening, thereby saving costs while ensuring the same frequency and consistency of pressure applied at the two groups of clamping points. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the installation structure of the seat plate and the linear guide rod of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the double-head clamping assembly of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the auxiliary mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the split structure of the drive assembly of the present invention;

[0028] Figure 6 It is a schematic structural diagram of the end clamping assembly of the present invention;

[0029] Figure 7It is a schematic structural diagram of the cutting knife assembly of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the toggle assembly of the present invention.

[0031] In the figure:

[0032] 1. Strip cable;

[0033] 2. Double-head clamping assembly; 201. Seat plate; 202. Electric screw rod 2; 203. Channel plate; 204. Positioning clamp; 205. Pushing assembly; 2051. Movable clamp; 2052. Guide round rod; 2053. Electric push rod;

[0034] 3. Auxiliary mechanism; 301. Annular cylinder; 3011. Annular groove; 3012. Arc-shaped through groove; 302. Cutting knife assembly; 3021. Thickening block; 3022. Blade; 3023. Rectangular sleeve; 3024. T-plate; 3025. Locking pin; 3026. Arc-shaped plate; 3027. Spring structure; 303. End clamping assembly; 3031. Fixture plate; 3032. Conical head; 3033. Rectangular plate; 3034. Electric screw rod 1; 304. Driving assembly; 3041. Connecting ring; 3042. Gear ring; 3043. Driving motor; 3044. Spur gear; 305. Toggle assembly; 3051. Integrated plate; 3052. Ring structure; 3053. Linear guide rod; 3054. Bending strip plate; 3055. Disc structure. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0036] Embodiment 1

[0037] like Figure 1-Figure 8As shown, this embodiment proposes an auxiliary connector for power grid maintenance, which can achieve the purpose of stripping the insulation layer on the opposite ends of the two cable sections after the cable maintenance section is cut. The auxiliary connector includes a double-headed clamping assembly 2 for clamping the part of the strip cable 1 to be repaired, and an auxiliary mechanism 3 is sleeved on the outer surface of the strip cable 1 for cutting the insulating layer around the opposite ends of the two sections of the strip cable 1 and pulling it outward to remove it after the strip cable 1 is cut into two sections. The auxiliary mechanism 3 includes an annular cylinder 301 surrounding the outside of the strip cable 1, and a cutting knife assembly 302 for cutting the insulating layer of the strip cable 1 is arranged on one side of the annular cylinder 301. An end clamping assembly 303 is installed on the annular cylinder 301 for cooperating with the double-headed clamping assembly 2 to make the part of the strip cable 1 to be repaired after cutting in a straight state. A driving assembly 304 is also installed on the annular cylinder 301 for driving the cutting knife assembly 302 to rotate circumferentially along the surface of the strip cable 1 to cut the insulating layer. A toggle assembly 305 is installed on the double-headed clamping assembly 2 for rotating and moving the annular cylinder 301 in a horizontal direction after the insulating layer on the surface of one section of the strip cable 1 is removed. In actual application, the two sides of the cable surface to be repaired are clamped by using the double-head clamping assembly 2, and the parts to be repaired are cut off. After that, the auxiliary mechanism 3 is turned over so that one end of the annular tube 301 faces the strip cable 1 clamped in the double-head clamping assembly 2, and then the position of the annular tube 301 is adjusted by using the toggle assembly 305, and one end of one section of the strip cable 1 is manually inserted into the effective range of the end clamping assembly 303 along the annular tube 301, and then the end clamping assembly 303 is operated in coordination to tightly clamp one end of this section of the strip cable 1, and the position of the annular tube 301 is adjusted again by using the toggle assembly 305, so that the strip cable 1 part clamped by the double-head clamping assembly 2 and the end clamping assembly 303 is in a straight state. On this basis, by running the driving component 304, the cutting knife component 302 is driven to perform circular cutting along the set position surface of the straightened part of the strip cable 1. After the cutting is completed, the position of the annular cylinder 301 is adjusted using the toggle component 305. During the process, the end clamping component 303 can generate a pulling force toward the outside on the part of the strip cable 1 surface insulation layer that is cut, thereby finally completing the removal of the cut insulation layer.

[0038] Embodiment 2

[0039] Following the above-mentioned embodiment 1, after the insulation layer is stripped from the surface of one of the cut strip-shaped cables 1, it is only moved horizontally so that the entire auxiliary mechanism 3 is aligned with the other strip-shaped cable 1, and the end clamping assembly 303 is located inside, thus affecting the stripping operation of the insulation layer on the surface of the strip-shaped cable 1 after the circular cutting. In order to effectively ensure the stripping effect of the insulation layer on the opposite end of the two strip-shaped cables 1. Figure 4 and Figure 8As shown, the toggle assembly 305 includes an integrated plate 3051 installed on the annular cylinder 301, a ring structure 3052 is installed on the back of the integrated plate 3051, and circular hole grooves are opened on both sides of the ring structure 3052. A linear guide rod 3053 is installed on the double-head clamping assembly 2, and a bent strip plate 3054 is slidably sleeved on the outer surface of the linear guide rod 3053. A disc structure 3055 that fits with the inside of the ring structure 3052 is fixedly installed at the front end of the bent strip plate 3054, and spring snaps extending to the inside of the circular hole groove are installed on both sides of the disc structure 3055. After the insulation layer of one end of the strip cable 1 is stripped off, the spring snap is squeezed along the inside of the two circular hole grooves to make the spring snap retract to the inside of the disc structure 3055. On this basis, the collar structure 3052 is moved to rotate 180° along the outer surface of the disc structure 3055, thereby achieving the purpose of flipping the annular cylinder 301, so that the end clamping assembly 303 and the cutting knife assembly 302 are mutually exchanged in direction. When the spring snap reaches the position of the circular hole groove again, the squeezing force on the spring snap is cancelled, and it returns to its original state while being embedded in the inside of the circular hole groove, thereby maintaining the stability of the annular cylinder 301 in direction.

[0040] In addition, when stripping off the insulating layer of the strip cable 1 after ring cutting, a pushing force is applied to the bent strip plate 3054 toward one side, causing it to move along the outer surface of the linear guide rod 3053, thereby giving the cut insulating layer a pushing force away from the strip cable 1 through the annular tube 301 and the end clamping assembly 303, so as to achieve the purpose of stripping off the insulating layer.

[0041] Embodiment 3

[0042] In the first embodiment, the insulating layer of the surface of a strip-shaped cable 1 is cut into a ring shape, and a thrust is applied to the outer side to tear off the insulating layer. If the thrust is not smooth enough, the cutting tool may generate additional lateral force, increasing the risk of breaking. Therefore, in order to ensure the safety of the cutting tool in this embodiment. Figure 4 , Figure 5 and Figure 7As shown, the cutting knife assembly 302 includes a thickening block 3021 attached to the side of the driving assembly 304 away from the annular cylinder 301, and a blade 3022 is detachably mounted on one side of the thickening block 3021 by means of screws. The cutting surface of the lower half of the blade 3022 is inclined upward from bottom to top, and the cutting surface width of the blade 3022 gradually increases to the other side, thereby optimizing the structural strength of the non-cutting surface of the blade 3022. In addition, the structural strength of the upper half of the blade 3022 is increased in cooperation with the thickening block 3021. A rectangular sleeve 3023 is attached to the side of the blade 3022 away from the thickening block 3021, a T-shaped plate 3024 is inserted inside the rectangular sleeve 3023, locking pins 3025 are detachably connected between the two sides of the T-shaped plate 3024 and the driving assembly 304, an arc plate 3026 is installed at the bottom of the rectangular sleeve 3023, and a spring structure 3027 is connected between the bottom wall of the rectangular sleeve 3023 and the bottom of the T-shaped plate 3024 for lowering the height of the arc plate 3026 when the cutting gap is larger than the width of the arc plate 3026 during the stage of cutting the insulation layer. Before and during the process of driving the blade 3022 to rotate 360° along the surface of the strip cable 1 by the driving assembly 304, the bottom of the arc plate 3026 is in a state of being attached to the surface of the strip cable 1. After using the toggle assembly 305 to make the end clamping assembly 303 drive the cut insulation layer to move toward one side a distance equal to the width of the arc plate 3026, the elastic performance and reset function of the spring structure 3027 generate a downward pushing force on the rectangular sleeve 3023, thereby prompting the bottom of the arc plate 3026 to fit the inner core surface of the strip cable 1 to peel off the insulation layer. Moreover, since one side of the arc plate 3026 fits the surface of the blade 3022, it is effectively avoided that the lower half of the blade 3022 is broken when the bent strip plate 3054 is pushed along the surface of the linear guide rod 3053.

[0043] Specifically, an annular groove 3011 is provided on one side of the annular cylinder 301, and the driving assembly 304 includes a connecting ring 3041 rotatably engaged in the annular groove 3011, and a gear ring 3042 detachably assembled with the blade 3022 and the T-plate 3024 is sleeved on the outer surface of the connecting ring 3041, and a driving motor 3043 is installed on the outer surface of the annular cylinder 301, and a spur gear 3044 meshed with the gear ring 3042 is transmission-connected at the output end of the driving motor 3043. The spur gear 3044 is driven to rotate by running the driving motor 3043, and the gear ring 3042 meshed with the spur gear 3044 is controlled to drive the connecting ring 3041 to rotate along the annular groove 3011, thereby driving the cutting blade assembly 302 to rotate in a circumferential direction, so as to achieve the purpose of annular cutting.

[0044] Embodiment 4

[0045] Following the above-mentioned embodiment 1, in order to effectively ensure the clamping effect of the end clamping assembly 303 on one end of a strip cable 1, as shown in FIG. Figure 4 and Figure 6 As shown, the end clamping assembly 303 includes a clamp plate 3031 which is arranged in the inner cavity of the annular cylinder 301 and is arranged in an upper and lower mirror image. A plurality of conical heads 3032 are installed on opposite sides of the two clamp plates 3031. The diameter of the conical heads 3032 gradually decreases from one end close to the clamp plate 3031 to the other end. A groove is provided at the end with a smaller diameter of the conical head 3032. Among the plurality of conical heads 3032 in the front and rear axial directions, their heights gradually increase from the middle to both sides. An arc-shaped through groove 3012 is provided on the outer surface of the annular cylinder 301. A rectangular plate 3033 is installed on the outer surface of the annular cylinder 301. An electric screw 3034 for driving the two clamp plates 3031 to adjust the spacing is installed on the rectangular plate 3033, so that after one end of a section of strip cable 1 passes through the upper and lower clamp plates 3031, it is tightly clamped. In addition, a plurality of conical heads 3032 are used to extrude the insulating layer to be stripped at multiple points, so that a plurality of recessed areas are formed on the surface of the insulating layer, thereby increasing the unevenness of the surface. At the same time, a groove is opened near the pointed end of the conical head 3032, so that a small protrusion is formed again in the recessed area, thereby effectively avoiding the separation between the end clamping component 303 and the insulating layer and ensuring the stability of the clamping.

[0046] Embodiment 5

[0047] In order to ensure the same frequency for the two clamping positions on the strip cable 1, Figure 2 and Figure 3 As shown, the double-head clamping assembly 2 includes a base plate 201 installed at the bottom of the linear guide rod 3053, an electric screw rod 202 is installed on the base plate 201, two groove plates 203 are slidably sleeved on the electric screw rod 202, and positioning clamps 204 are fixedly installed on the top surfaces of the two groove plates 203. A pushing assembly 205 for clamping two places on the cable surface to maintain the same frequency is installed at the bottom of the base plate 201. The electric screw rod 202 is composed of a motor and a bidirectional screw rod. It is a conventional application, so it is not described in detail here. It is intended to control the two groove plates 203 to adjust the spacing during operation to achieve the purpose of pulling the two sections of the strip cable 1 after shearing.

[0048] Specifically, the pushing assembly 205 includes two movable clamps 2051 slidably engaged on the channel plate 203, a guide round bar 2052 located below the channel plate 203 is inserted between the two movable clamps 2051, and an electric push rod 2053 for driving the movable clamp 2051 to slide along the path of the channel plate 203 is installed in the middle of the bottom surface of the seat plate 201. By placing the entire auxiliary connector under the strip cable 1 to be repaired, and then driving the auxiliary connector to move upward, the strip cable 1 enters the range between the positioning clamp 204 and the movable clamp 2051. On this basis, by running the electric push rod 2053, it is prompted to perform an outward extension operation accordingly, and while pushing the guide round bar 2052 from back to front, the two movable clamps 2051 are controlled to slide along the internal groove path of the channel plate 203, so that the movable clamp 2051 and the positioning clamp 204 finally clamp the strip cable 1 tightly, and at the same time ensure the consistency of the clamping pressure at the two places and the same frequency before and after clamping. In addition, after the shearing is completed and the strip cable 1 is peeled between the clamping parts on both sides, the two groove plates 203 are controlled to move in relative directions by operating the electric screw 202, so as to generate pulling forces in relative directions on the two sections of the strip cable 1 formed after shearing, thereby facilitating the wiring of the opposite ends of the two sections of the strip cable 1. At the same time, the two movable clamps 2051 follow and move along the outer surface of the guide round rod 2052.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An auxiliary connector for power grid maintenance, comprising a double-head clamping assembly (2) for clamping a strip cable (1) at a position to be repaired, characterized in that: The outer surface of the strip-shaped cable (1) is provided with an auxiliary mechanism (3) for cutting the insulating layer around opposite ends of the two strip-shaped cables (1) and pulling them outward to remove the insulating layer after the strip-shaped cable (1) is cut into two sections; The auxiliary mechanism (3) comprises an annular cylinder (301) surrounding the outside of the strip cable (1); a cutting knife assembly (302) for cutting the insulating layer of the strip cable (1) is arranged on one side of the annular cylinder (301); an end clamping assembly (303) is installed on the annular cylinder (301) for cooperating with a double-head clamping assembly (2) to make the part of the strip cable (1) to be repaired in a straight state after cutting; a driving assembly (304) is also installed on the annular cylinder (301) for driving the cutting knife assembly (302) to rotate along the circumferential direction of the surface of the strip cable (1) to cut the insulating layer; and a toggle assembly (305) is installed on the double-head clamping assembly (2) for causing the annular cylinder (301) to rotate in a direction and move in a lateral direction after the insulating layer on the surface of a section of the strip cable (1) is removed.

2. The auxiliary connector for power grid maintenance according to claim 1, characterized in that: The toggle assembly (305) comprises an integral plate (3051) mounted on the annular cylinder (301), a collar structure (3052) being mounted on the back of the integral plate (3051), and circular hole grooves are provided on both sides of the collar structure (3052); A linear guide rod (3053) is installed on the double-head clamping assembly (2), and a bent strip plate (3054) is slidably sleeved on the outer surface of the linear guide rod (3053). A disc structure (3055) that fits inside the ring structure (3052) is fixedly installed at the front end of the bent strip plate (3054), and spring snaps that extend into the inside of the circular hole groove are installed on both sides of the disc structure (3055).

3. The auxiliary connector for power grid maintenance according to claim 1, characterized in that: The cutting blade assembly (302) comprises a thickening block (3021) attached to a side of the driving assembly (304) away from the annular cylinder (301); a blade (3022) is detachably mounted on one side of the thickening block (3021) by means of a screw; a rectangular sleeve (3023) is attached to a side of the blade (3022) away from the thickening block (3021); a T-shaped plate (3024) is inserted into the interior of the rectangular sleeve (3023); locking pins (3025) are detachably connected between the two sides of the T-shaped plate (3024) and the driving assembly (304); and an arc plate (3026) is mounted at the bottom of the rectangular sleeve (3023).

4. The auxiliary connector for power grid maintenance according to claim 3, characterized in that: A spring structure (3027) is connected between the bottom wall of the rectangular sleeve (3023) and the bottom of the T-shaped plate (3024) for lowering the height of the arc-shaped plate (3026) when the insulating layer is cut and the cutting gap is larger than the width of the arc-shaped plate (3026).

5. The auxiliary connector for power grid maintenance according to claim 4, characterized in that: An annular groove (3011) is formed on one side of the annular cylinder (301); The driving assembly (304) comprises a connecting ring (3041) rotatably engaged in the annular groove (3011); a gear ring (3042) detachably assembled with a blade (3022) and a T-plate (3024) is sleeved on the outer surface of the connecting ring (3041); a driving motor (3043) is mounted on the outer surface of the annular cylinder (301); and an output end of the driving motor (3043) is drivingly connected to a spur gear (3044) meshing with the gear ring (3042).

6. The auxiliary connector for power grid maintenance according to claim 1, characterized in that: The end clamping assembly (303) comprises a clamping plate (3031) which is arranged in the inner cavity of the annular cylinder (301) and is arranged in an up-and-down mirror image, and a plurality of conical heads (3032) are installed on opposite sides of the two clamping plates (3031); The diameter of the conical head (3032) gradually decreases from one end close to the fixture plate (3031) to the other end, a groove is provided at the end with a smaller diameter of the conical head (3032), and the height of the conical heads (3032) in the front and rear axial directions gradually increases from the middle to both sides.

7. The auxiliary connector for power grid maintenance according to claim 6, characterized in that: The outer surface of the annular cylinder (301) is provided with an arc-shaped through groove (3012), and a rectangular plate (3033) is installed on the outer surface of the annular cylinder (301). An electric screw rod (3034) for driving the two clamp plates (3031) to adjust the spacing is installed on the rectangular plate (3033).

8. The auxiliary connector for power grid maintenance according to claim 1, characterized in that: The double-head clamping assembly (2) comprises a seat plate (201) mounted at the bottom of the linear guide rod (3053), a second electric screw rod (202) being mounted on the seat plate (201), two groove plates (203) being slidably sleeved on the second electric screw rod (202), positioning clamps (204) being fixedly mounted on the top surfaces of the two groove plates (203), and a pushing assembly (205) for clamping two locations on the surface of the cable to maintain the same frequency being mounted at the bottom of the seat plate (201).

9. The auxiliary connector for power grid maintenance according to claim 8, characterized in that: The pushing assembly (205) comprises two movable clamps (2051) slidably engaged on the channel plate (203), a guide round rod (2052) located below the channel plate (203) is inserted between the two movable clamps (2051), and an electric push rod (2053) is installed in the middle of the bottom surface of the seat plate (201) for driving the movable clamps (2051) to slide along the path of the channel plate (203).

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