CN205829046U - Double suspension centre power transmission line overhead ground wire hoisting tools - Google Patents

Abstract

The utility model discloses a lifting tool for an overhead ground wire of a transmission line with double suspension points, which belongs to the field of electric power maintenance tools. It includes an upper connecting stay, a lower connecting stay and two connecting rods, a jack is provided between the upper connecting stay and the lower connecting stay, and the two connecting rods are fixed on the upper connecting stay and pass through the lower connecting stay The upper through hole is movably connected with the lower connecting brace, the lower end of the connecting rod is provided with a hook, and the lower connecting brace is provided with two connecting plates, and the connecting plates are provided with adjusting screws. The utility model is mainly used for lifting the overhead ground wire of the steel pipe tower of the transmission line, which reduces the labor intensity of the operators, improves the work efficiency of the operators, and improves the safety and reliability of high-altitude operations, and the tool has strong versatility. It is suitable for the replacement of the suspension clamps of the overhead ground wires of all steel pipe towers with a voltage level above 35kV, and is suitable for popularization and use.

Description

Double lifting point transmission line overhead ground wire lifting tool

technical field

The utility model belongs to a tool for electric power, in particular to a lifting tool for an overhead ground wire of a transmission line with double suspension points.

Background technique

During the operation of the transmission line, it is often affected by the external environment, external force damage, aging and corrosion of equipment, etc., resulting in damage to the ground wire clamp, which directly affects the safe operation of the transmission line, and needs to be repaired and replaced in time. The suspension distance of the overhead ground wire on the steel pipe tower operated by the company is short, and under uneven tension, it is easy to cause frequent hidden dangers of suspension wire clips and ground wires; due to the small tilt displacement, it is difficult to lift the wire during maintenance and replacement, and there are potential safety hazards. Existing hoisting tools mainly include screw type and gourd type wire lifting tools. Both of these lifting tools have certain drawbacks. Lead screw type: The double helix structure combining inside and outside is adopted, which increases the lifting stroke; the lifting point is located above the hanging point, and the lifting length of the screw is limited; and it is mechanically operated, and the lifting is not balanced enough. Gourd type: Use the hand hoist together with the wire clamp to tighten the ground wire. The operation is complicated and the force is unbalanced, which may easily lead to the displacement of the wire clamp.

Utility model content

The purpose of the utility model is to provide a lifting tool for the overhead ground wire of transmission lines with double suspension points and simple operation, so as to overcome the defect that the overhead ground wire in the prior art is prone to displacement during the lifting process.

The utility model is realized by adopting the following technical solutions:

A lifting tool for an overhead ground wire of a transmission line with double suspension points, comprising an upper connecting brace, a lower connecting brace and two connecting rods, a jack is arranged between the upper connecting brace and the lower connecting brace, and the two connecting rods It is fixed on the upper connecting brace, and is movably connected with the lower connecting brace through the through hole on the lower connecting brace. The lower end of the connecting rod is provided with a hook, and two connecting plates are arranged below the lower connecting brace. There are adjustment screws on the board.

The upper connecting brace is fixedly provided with a portable suspension ring.

Compared with the prior art, the beneficial effects of the utility model are:

(1) The utility model adopts a double suspension point structure, which can effectively solve the displacement problem of the overhead ground wire during the lifting process;

(2) The utility model is simple in structure, easy to operate, and convenient in later maintenance;

(3) The utility model adopts the jack as the power mechanism, and the force is even when lifting;

(4) The use of the adjustment screw of the utility model greatly improves the scope of use of the tool.

Description of drawings

Fig. 1 is the structural representation of the utility model;

In the figure: 1, portable ring; 2, upper connecting support; 3, connecting rod; 4, jack; 5, lower connecting support; 6, adjusting screw; 7, connecting plate; 8, hook.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1, a double-suspension point transmission line overhead ground wire lifting tool includes an upper connecting stay 2, a lower connecting stay 5 and two connecting rods 3, the connection between the upper connecting stay 2 and the lower connecting stay 5 A jack 4 is arranged between them, and the two connecting rods 3 are fixed on the upper connecting stay 2, and are movably connected with the lower connecting stay 5 through the through hole on the lower connecting stay 5, and the lower end of the connecting rod 3 is provided with a hook 8. There are two connecting plates 7 below the lower connecting brace 5, and the connecting plates 7 are provided with adjusting screws 6; the upper connecting brace 2 is also fixed with a portable lifting ring 1 which is convenient for the operator to operate.

When in use, the lower connecting support 5 is stuck at the position where the ground wire clip of the steel pipe tower is connected with the bottom line through the two connecting plates 7, and fixed with the adjusting screw 6, and the overhead ground wire is hung on the hook 8 at the lower end of the connecting rod 3 to start The jack 4 raises the height of the ground wire to the ground wire clamp, and finally connects the ground wire to the ground wire clamp. The utility model is used to repair and replace the overhead ground wire, which reduces the labor intensity of the operators, improves the work efficiency of the operators, and improves the safety and reliability of high-altitude operations; this tool has strong versatility and is suitable for all voltages above 35kV The replacement work of the suspension clamp of the overhead ground wire of the grade steel pipe tower is suitable for popularization and use.

Claims (2)

1. A lifting tool for the overhead ground wire of a transmission line with double suspension points, characterized in that: it comprises an upper connecting brace (2), a lower connecting brace (5) and two connecting rods (3), and the upper connecting brace (2) A jack (4) is provided between the lower connecting brace (5), and the two connecting rods (3) are fixed on the upper connecting brace (2) and pass through the through holes on the lower connecting brace (2) It is movably connected with the lower connecting brace (5), the lower end of the connecting rod (3) is provided with a hook (8), and two connecting plates (7) are fixedly arranged below the lower connecting brace (5). (7) is provided with adjusting screw (6). 2. The lifting tool for overhead ground wires of transmission lines with double suspension points according to claim 1, characterized in that: said upper connecting support (2) is fixedly provided with a portable lifting ring (1).