Insulating tree shears

Abstract

Insulating tree shears comprise an insulating rod. A lower shear is arranged at the top end of the insulating rod. An upper shear and a pressure handle are hinged to the lower shear. A torsion spring is arranged between the pressure handle and the lower shear. The pressure handle is meshed with the upper shear through gear teeth. A moving pulley block is disposed at the tail end of the pressure handle. A fixed pulley block is arranged on the insulating rod. A pull cord is disposed on the insulating rod and passes through the moving pulley block and the fixed pulley block. The lower shear is provided with teeth, and a cutting edge is arranged on one side of the teeth. The insulating rod effectively prevents electric shock. The moving pulley block increases pulling force, the pressure handle is connected with the upper shear by meshing of gear teeth high in transmission efficiency, the shearing force is large, and accordingly the insulating tree shears are easy to operate, convenient for trimming, and available for shearing thick branches.

Description

technical field [0001] The invention relates to insulating tree shears used in high-voltage operation. Background technique [0002] During the electrical work, the branches of the big tree will interfere with the work of the staff. For the convenience of the staff, it is necessary to use tree scissors to cut off the branches. [0003] Existing tree shears comprise a long wooden handle, on which a lower shearing body is arranged, and an upper shearing body is hinged on the lower shearing body, and a torsion spring is arranged between the upper shearing body and the lower shearing body. , There is a pull rope at the end of the upper shear body. [0004] When in use, the upper shearing body and the lower shearing body are opened under the action of the torsion spring, and the stay rope is pulled to close the upper shearing body and the lower shearing body to cut off the branches. [0005] The defective of this tree scissors is: 1. because the material of long handle is wood...

AI Technical Summary

Problems solved by technology

[0005] The defect of this tree scissors is: 1. because the material of the long handle is wood, it will become a conductor under the situation of high air humidity such as rainy days, and electric shock accidents are prone to occur near the power transmission line

3. When the branches are thick, the blade surface of the scissors is difficult to cut off the branches, and excessive force will cause the scissors to collapse

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