Electrified fast repair hydraulic wire breaking tool

Abstract

The application provides a charged quick repair hydraulic wire breaking tool, which comprises a hydraulic wire pressing clamp, a wire breaking blade, an insulating bearing tool, an insulating pulling rope, a compression spring and a fixed pulley. The top of the insulating bearing tool is provided with the hydraulic wire pressing clamp; the cutting line port of the hydraulic wire pressing clamp is provided with an opening formed by a blocking plate; the wire breaking blade is installed on the hydraulic propelling rod of the hydraulic wire pressing clamp in one piece and on the blocking plate of the cutting line port in another piece; the two ends of the compression spring are respectively connected with the hydraulic rod movable end of the hydraulic wire pressing clamp and the rod part of the hard insulating bearing tool; the fixed pulley is installed on the hydraulic rod movable end; one end of the insulating pulling rope is connected with the hydraulic rod of the hydraulic wire pressing clamp, and the other end of the insulating pulling rope extends to the bottom of the hard insulating bearing tool after passing through the fixed pulley. The application can solve the safety problem of personnel during charged operation, reduce the operation risk of personnel, make the charged wire breaking more convenient, rapid, stable and reliable, and ensure the stability of the power supply system.

Description

Technical Field

[0001] This invention belongs to the field of power supply maintenance and protection technology, specifically relating to a hydraulic wire disconnection tool for rapid live-line repair. Background Technology

[0002] When power supply and distribution systems encounter severe weather, protective devices are prone to damage or grounding. Although the balance of the three-phase system remains intact after a single-phase grounding (the magnitude and phase of the phase voltage remain unchanged), and the receiving equipment can continue to operate, the voltage rise in the ungrounded phase can lead to another phase grounding fault in a weakly insulated system, causing a two-phase short circuit and exacerbating the fault. Therefore, prolonged operation with a single-phase grounding is not permitted. For cable lines, once a single-phase grounding occurs, its insulation generally cannot recover on its own. Therefore, operation should not continue when a grounding fault occurs; it should be addressed as soon as possible to prevent the fault from spreading. Failure to address it promptly can cause cable heads to burn out, the entire line to trip, and equipment to be destroyed.

[0003] In certain critical work situations and scenarios, it is essential to handle faults while the power supply remains on. Power transmission lines are typically made of steel-cored aluminum stranded wire, making it extremely difficult to cut them without interrupting the power using ordinary wire cutters and pliers. Furthermore, 10kV lines require a minimum safe distance of 0.7 meters between personnel and equipment. Ordinary wire-cutting tools cannot easily disconnect the steel core of the transmission line. Therefore, a powerful, rapid-response hydraulic wire-cutting tool with strong gripping force is needed to meet these requirements. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] This invention proposes a hydraulic wire cutting tool for rapid repair under energized conditions, in order to solve the technical problem of how to quickly cut stranded wires while they are energized.

[0006] (II) Technical Solution

[0007] To address the aforementioned technical problems, this invention proposes a hydraulic wire cutting tool for rapid live-line repair. This tool includes hydraulic wire clamps, a wire cutting blade, an insulated support tool, an insulated pull rope, a compression spring, and a fixed pulley. The hydraulic wire clamps are mounted on the top of the insulated support tool. An opening is formed on one side of the cutting edge of the hydraulic wire clamps by cutting. The wire cutting blade is used to cut the stranded wire; one blade is mounted on the hydraulic push rod of the hydraulic wire clamps, and the other blade is mounted on the cutting edge baffle. The two ends of the compression spring are connected to the movable end of the hydraulic rod of the hydraulic wire clamps and the rod of the rigid insulated support tool, respectively. The fixed pulley is mounted on the movable end of the hydraulic rod. One end of the insulated pull rope is connected to the hydraulic rod of the hydraulic wire clamps, and the other end extends to the bottom of the rigid insulated support tool after passing over the fixed pulley.

[0008] Furthermore, the rigid insulated load-bearing tool is made by welding the connecting pipe of the insulated tie rod onto the hydraulic rod.

[0009] Furthermore, the insulated tie rod has moisture-proof properties.

[0010] Furthermore, the other end of the insulated pull rope passes over the fixed pulley and enters the rod of the rigid insulated load-bearing tool, and then exits from the bottom of the rod.

[0011] Furthermore, the insulated pull rope has moisture-proof properties.

[0012] (III) Beneficial Effects

[0013] This invention proposes a hydraulic wire cutting tool for rapid live-line repair, comprising hydraulic wire clamps, wire cutting blades, an insulated support tool, an insulated pull rope, a compression spring, and a fixed pulley. The hydraulic wire clamps are mounted on the top of the insulated support tool; the cutting edge of the hydraulic wire clamps has an opening formed by a cut; the wire cutting blades are used to cut stranded wires, with one blade mounted on the hydraulic push rod of the hydraulic wire clamps and the other on the cutting edge baffle; the two ends of the compression spring are connected to the movable end of the hydraulic rod of the hydraulic wire clamps and the rod of the rigid insulated support tool, respectively; the fixed pulley is mounted on the movable end of the hydraulic rod; one end of the insulated pull rope is connected to the hydraulic rod of the hydraulic wire clamps, and the other end extends to the bottom of the rigid insulated support tool after passing over the fixed pulley. This wire cutting tool solves the safety problems of personnel during live-line operations, reducing operational risks; it solves the problem of quickly cutting off the fault point in emergency repairs where power cannot be disconnected, thus narrowing the fault area; it makes live-line cutting more convenient, rapid, stable, and reliable, ensuring the stability of the power supply system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the hydraulic wire disconnection tool for rapid repair of live wires according to an embodiment of the present invention. Detailed Implementation

[0015] To make the objectives, contents, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0016] This embodiment proposes a hydraulic wire disconnection tool for rapid repair of live wires, the structure of which is as follows: Figure 1 As shown, the main components include hydraulic wire clamps 1, wire cutting blades 2, rigid insulated support tools 3, moisture-proof insulated pull ropes 4, compression springs 5, and fixed pulleys 6. The rainproof insulated pull rod's connecting pipe is welded to the hydraulic rod, serving as the rigid insulated support tool 3. This allows for easy disassembly and portability, and enables various operating distances to be configured, thus meeting the wire cutting requirements in various complex environments.

[0017] A hydraulic wire crimping tool 1 is mounted on the top of the rigid insulated bearing tool 3. The cutting edge of the hydraulic wire crimping tool 1 has an opening formed by a cut, ensuring the wire smoothly enters the cutting edge during the cutting process, achieving a quick and convenient effect. A wire cutting blade 2 is used to cut steel-cored aluminum stranded wire; one blade is mounted on the hydraulic push rod of the hydraulic wire crimping tool 1, and the other is welded to the cutting edge baffle. The hydraulic wire crimping tool 1 and the wire cutting blade 2 constitute a wire cutting device. The hydraulic push rod of the hydraulic wire crimping tool 1 drives the blade to engage with the blade welded to the baffle, generating a strong biting force to complete the wire cutting operation.

[0018] The two ends of the compression spring 5 are connected to the movable end of the hydraulic rod of the hydraulic crimping pliers 1 and the rod of the rigid insulated support tool 3, respectively, serving as a manual reset force-generating device for the hydraulic rod. A fixed pulley 6 is installed at the movable end of the hydraulic rod, serving as a force-changing device for the moisture-proof insulated pull rope 4. One end of the moisture-proof insulated pull rope 4 is connected to the hydraulic rod of the hydraulic crimping pliers 1, and the other end passes over the fixed pulley 6 and enters the rod of the rigid insulated support tool 3, exiting from the bottom of the rod.

[0019] During operation, simply wear insulated gloves, hold the rigid insulated support tool 3 with one hand, and pull the moisture-proof insulated rope 4 with the other hand to complete the live wire disconnection operation. It features a high safety factor, simple and labor-saving operation, can be easily operated by one person, has a wide wire disconnection range, is fast, has strong wire disconnection ability, is easy to carry, has strong applicability, and can be assembled with a safe operating distance according to actual conditions. It is suitable for live wire disconnection operations under various complex conditions.

[0020] The hydraulic line disconnection tool for rapid live-line repair of the present invention is an important tool for achieving high-quality power supply services. While ensuring the personal safety of operators, it can significantly shorten the time for emergency live-line repair and ensure the stability of 10kV high-voltage power supply, and has strong practical application effects.

[0021] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A live-line quick repair hydraulic wire-line tool, characterized in that, The wire breaking tool comprises a hydraulic wire clamp, a wire breaking blade, a hard insulating bearing tool, an insulating pull rope, a compression spring and a fixed pulley; the hard insulating bearing tool is made by welding a connecting pipe of an insulating pull rod on a hydraulic rod, and a top of the hard insulating bearing tool is provided with the hydraulic wire clamp; a side baffle of a wire cutting port of the hydraulic wire clamp is formed with an opening by cutting; the wire breaking blade is used for cutting a stranded wire, one piece of which is installed on a hydraulic propelling rod of the hydraulic wire clamp, and the other piece is installed on the baffle of the wire cutting port; two ends of the compression spring are respectively connected with a movable end of a hydraulic rod of the hydraulic wire clamp and a rod part of the hard insulating bearing tool; the fixed pulley is installed on the movable end of the hydraulic rod; one end of the insulating pull rope is connected with the hydraulic rod of the hydraulic wire clamp, the other end of the insulating pull rope passes through the fixed pulley and then enters the rod part of the hard insulating bearing tool, and is pulled out from a bottom of the rod part of the hard insulating bearing tool; the insulating pull rod and the insulating pull rope have moisture-proof performance.

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