Double-loop cat-head tower and tower head structure thereof

Abstract

The invention discloses a double-loop cat-head tower and a tower head structure thereof. The tower head structure comprises a first conducting-wire cross arm and a crank arm assembly, wherein the first conducting-wire cross arm can be extended and retracted in the length direction of the first conducting-wire cross arm; the crank arm assembly comprises a first crank arm and a second crank arm; oneend of the first crank arm is connected with one end of the first conducting-wire cross arm, and one end of the second crank arm is connected with the other end of the first conducting-wire cross arm; the other end of the first crank arm is rotatably and relatively connected with the other end of the second crank arm so that the first conducting-wire cross arm can horizontally move up and down; the crank arm assembly further comprises a first locking mechanism used for locking relative rotating motion of the first crank arm and the second crank arm, or the first crank arm can be extended andretracted in the length direction of the first arm, and the first crank arm can be extended and retracted in the length direction of the second arm so that the first conducting-wire cross arm can horizontally move up and down; and the crank arm assembly further comprises a second locking mechanism used for locking and loosing the extending and retracting motion of the first crank arm and the second crank arm. According to the double-loop cat-head tower and the tower head structure thereof, the height of a tower head can meet different erecting requirements.

Description

technical field [0001] The invention relates to the technical field of electric equipment, in particular to a double-circuit cat head tower and its tower head structure. Background technique [0002] With the further strengthening of my country's economic strength, the demand for electricity has also become larger and larger, making the line corridors increasingly complex, and subsequently put forward higher-level requirements for the erection of transmission towers, especially in the interconnection between lines. When the line construction is carried out in the intersection area, the height requirements for the pole tower become more stringent. [0003] Traditional double-circuit transmission towers usually use a drum-shaped tower head or an umbrella-shaped tower head. The wires are arranged vertically from top to bottom, making the height of the tower head part higher. When the transmission tower passes through the section that requires tower height, Even if the height of...

AI Technical Summary

Problems solved by technology

[0003] Traditional double-circuit transmission towers usually use a drum-shaped tower head or an umbrella-shaped tower head. The wires are arranged vertically from top to bottom, making the height of the tower head part higher. When the transmission tower passes through the section that requires tower height, Even if the height of the tower is reduced to the minimum, it still cannot meet the requirements of use

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