Portable power construction grounding device

Abstract

The invention discloses a portable power construction grounding device, which comprises an insulated operating rod and a grounding head, wherein the grounding head is connected with the insulated operating rod by adopting a universal joint. The grounding head comprises a handle part connected with the insulated operating rod, a fixed bayonet extending transversely from the top of the handle part,and a movable bayonet formed relative to the fixed bayonet, wherein one end of the movable bayonet is glidingly arranged at the handle part; and the lower part of the movable bayonet is provided witha hydraulic actuator, the outer barrel of the hydraulic actuator is fixed with the handle part of the grounding head, a hydraulic rod is connected with the bottom of the movable bayonet, and a hydraulic oil pipe of the hydraulic actuator is connected to a hydraulic handle at the bottom of the insulated operating rod. The grounding head is connected with the insulated operating rod by adopting theuniversal joint, so random angle change of the grounding head can be realized; by using a hydraulic system, the problems of displacement and compaction failure caused by manual rotation or spring compaction are solved in the prior art; and the designed bayonets can tightly hold a lead and prevent the lead from sliding out.

Description

[0001] Technical field [0002] The invention relates to a special tool used in the process of power maintenance and construction, in particular to a portable power construction grounding device. Background technique [0003] The grounding wire is an important tool to ensure the safety of workers when there is unexpected voltage on equipment and lines that have been powered off. Portable short-circuit grounding device is a kind of temporary grounding device commonly used in the process of power maintenance and construction. Its function is to prevent equipment and lines from suddenly coming on, and nearby charged objects generate electrostatic induction and electric shock, or mismatch during the construction of lines and substations. Exhaust the remaining charge when closing the gate to ensure the personal safety of the staff during the overhaul. [0004] The existing portable short-circuit grounding device is mainly composed of an insulated operating rod and a grounding head. ...

AI Technical Summary

Problems solved by technology

These three types of grounding joints have the following disadvantages: ①During the tightening process of the flat screw type, due to the gradual force at the contact position as the screw is pressed, the wire is prone to shift, resulting in poor reliability at the clamping point; ②Double spring Both the compression type and the screw type have the problem of being unable to compress the wire when the wire is stuck, which may easily lead to insufficient contact surface, short-circuit current is not up to standard, and flickering is likely to occur; ③ Since the direction of the grounding head is fixed, it cannot be operated in any direction. It cannot meet the multi-directional operation requirements of the switchgear. In practice, it often happens that the operator's position and the wire are not in a vertical position. When holding a 2-meter-long grounding device to stably hook the wire, it is an extremely difficult job. ; ④The effective insulation distance is not enough due to the change of the operating direction;

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