CN201742027U - Special tool for replacing insulators in electriferous state for 110kV single tower double circuit - Google Patents

Abstract

The utility model discloses a special tool for replacing live insulators of a 110kV double-circuit line on the same tower. There is a handle with an operating ring, and the insulating fastening hook is fixed on one end of the epoxy tube. The lead screw is inserted into the other end of the epoxy tube and threaded with the epoxy tube. The other end of the lead screw is fixed to the angle iron hook through a connector. The upper end of the rod is sleeved and fixed on the lead screw, and the lower end of the push rod is fixedly connected with the handle. The tool has the characteristics of high strength, good insulation performance, light weight, easy to carry and easy to operate.

Description

Special tools for live replacement of insulators on 110kV double-circuit lines on the same tower

technical field

The utility model relates to a special tool for replacing an insulator. the

Background technique

In order to reduce the line footprint and save investment, the current 110kV line uses a large number of double-circuit vertically arranged towers. However, due to structural reasons, the distance between the two-layer cross-arms is only 3.5 meters, and the live wires are located between the two-layer cross-arms. During operation, live working electricians cannot meet the safety distance requirements, and the combination gap is not enough when personnel enter the potential with the help of insulating flat ladders, insulating soft ladders and other tools. Defects and hidden dangers cannot be solved in a timely manner, and a large amount of work can only be completed by power outage maintenance. When the insulators of the 110kV line double-circuit straight line iron towers are replaced at the same potential, there are also potential safety hazards in live work, and they can only be replaced after a power outage, which is not conducive to the reliability of power supply and causes unnecessary economic losses. the

Contents of the invention

In order to solve the existing problem that the insulator cannot be replaced when it is live, the utility model provides a special tool for replacing the insulator when the 110kV double-circuit line on the same tower is live. The technical solution adopted is:

The tool includes an epoxy tube, an insulating fastening hook, a lead screw, an angle iron hook with an operating ring at the end, a push rod and a handle with an operating ring at the end, the insulating fastening hook is fixed at one end of the epoxy tube, The lead screw is inserted into the other end of the epoxy pipe and threaded with the epoxy pipe. The other end of the lead screw is fixed to the angle iron hook through the connector. The upper end of the ejector rod is sleeved and fixed on the lead screw. . the

The tool has the characteristics of high strength, good insulation performance, light weight, easy to carry, and easy to operate, which improves the operating safety of operators, meets the safety requirements of personnel and equipment, and breaks through the limit of the safety distance of 110kV double-circuit lines on the same tower , the use of live working methods shortens the operating time, reduces the chance of line outages, and ensures the safe and reliable power supply of the line. the

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model. the

Detailed ways

Below in conjunction with accompanying drawing 1 the utility model is further described:

As shown in the figure, the ends of the angle iron hook 4 and the handle 6 are equipped with operating rings, the insulating fastening hook 2 is fixed on one end of the epoxy tube 1, and the lead screw 3 is inserted into the other end of the epoxy tube 1 and connected with the epoxy tube 1. The pipe 1 is threaded, the other end of the lead screw 3 is fixedly connected to the angle iron hook 4 through the connector 7, the upper end of the push rod 5 is sleeved and fixed on the lead screw 3, and the lower end of the push rod 5 is fixedly connected to the handle 6. the

Before use, combine the parts of the tool into a whole on the ground. The ground personnel use the insulating rope to transfer the tool to the installation position. The ground potential electrician A uses the operating hook at the end of the insulating operating rod to put it into the operation ring of the angle iron hook 4, and cooperates with the ground electrician. Fix the tool angle iron hook 4 on the angle iron at the hanging point of the insulator. Ground potential electrician B uses the operating rod to move the insulating fastening hook 2 to the front end operation ring of the live wire. Rod 5 rotates lead screw 3, and then adjusts the depth of insertion of lead screw 3 in epoxy tube 1, increases the length of whole tool gradually, leads are strutted, and finally carries out the replacement of insulator. After the replacement is completed, A cooperates with B to restore the wire to the running state, the removal tool falls to the ground, and the personnel go down the tower, and the work is completed. the

Claims (1)

1. 110kV common-tower double-return circuit charged for replacement insulator specific purpose tool, comprise epoxy tube (1), fastening hook (2) insulate, leading screw (3), the end has the angle bar hook (4) of operation ring, push rod (5) and end have the handle (6) of operation ring, it is characterized in that: the fastening hook (2) that insulate is fixed on an end of epoxy tube (1), leading screw (3) inserts the other end of epoxy tube (1) and is threaded with epoxy tube (1), the other end of leading screw (3) is by the fixedly connected angle bar hook of connector (7) (4), the upper end socket of push rod (5) is fixed on the leading screw (3), the fixedly connected handle in lower end (6) of push rod (5).

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