Anti-off quick-loading hook type short-circuit grounding wire clamp

Abstract

The invention belongs to the technical field of electric safety tools and particularly relates to an anti-off quick-loading hook type short-circuit grounding wire clamp. The anti-off quick-loading hook type short-circuit grounding wire clamp comprises a base, a double-head threaded rod is connected to a middle portion of a bottom surface of the base, the double-head threaded rod includes a first threaded rod, a polished rod and a second threaded rod, the first threaded rod and the second threaded rod are threadingly connected to the base, and the polished rod is slidingly connected to the base. A bottom end surface of the double-head threaded rod is fixedly connected to a connecting rod, a top end of the double-head threaded rod is rotatingly connected to a slider, and a top surface of theslider is fixedly connected to a pressing block. A compression spring is set between the slider and the base, and the compression spring sleeves the outside of the double-head threaded rod. The top of the base is fixedly connected with a tongue-shaped hook, the middle portion of a right end of the slider is provided with a guiding groove, and the slider is slidingly connected to a vertical portion of the tongue-shaped hook through a guiding groove. The overall structure of the wire clamp is reasonable, the operations of hanging and removing a grounding wire are simple, the wire can be effectively clamped, the labor intensity of workers is reduced, and the work efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of electric safety tools, and in particular relates to a short-circuit grounding wire clip of an anti-detachment fast-installation hook type. Background technique [0002] In the fields related to power transmission and substations, grounding wires are commonly used for grounding operations, which are used to eliminate the induced electricity on the repaired lines or equipment and prevent personal electric shock accidents caused by sudden calls; the structure of the grounding wire includes insulating operating rods, wire clips, Special grounding wires, grounding terminals, confluence clamps, grounding clamps, etc. Among them, the wire clamps and grounding clamps are made of high-quality aluminum alloy die-casting, the operating rod is made of epoxy resin with good insulation performance and high strength, and the grounding soft copper wire is made of multi-layer Strands of high-quality soft copper wires are ...

AI Technical Summary

Problems solved by technology

[0002] In the fields related to power transmission and substations, grounding wires are commonly used for grounding operations, which are used to eliminate the induced electricity on the repaired lines or equipment and prevent personal electric shock accidents caused by sudden calls; the structure of the grounding wire includes insulating operating rods, wire clips, Special grounding wires, grounding terminals, confluence clamps, grounding clamps, etc. Among them, the wire clamps and grounding clamps are made of high-quality aluminum alloy die-casting, the operating rod is made of epoxy resin with good insulation performance and high strength, and the grounding soft copper wire is made of multi-layer Strands of high-quality soft copper wires are stranded, and covered with a soft, high-temperature-resistant transparent insulating sheath; according to the different wire clamps, the commonly used grounding wires include flat-mouthed spiral grounding wires, double-tongue grounding wires and monkey-head grounding wires. , the flat-mouth spiral clamp is suitable for grounding operations on electrical equipment, cross-arms, etc., but not suitable for clamping parts with circular cross-sections such as wires; the double-tongue hook type clamp is more convenient for clamping wires, only It needs to be pulled down, but it has design defects, and it is easy to fall off when it is subjected to external force or short-circuit electric power. The dynamic test shows that 60% of the double-tongue hook-type clamps will fall off under the action of electric power. Therefore, China Southern Power Grid prohibits the use of double-tongue hook-type grounding clamps in the form of Ann Jian [2015] No. 3; The clamp of the wire is a hook-tightening type, but the screw rod for tightening the screw is long, and the number of turns is too much when clamping and loosening the wire, and its semi-circular hook makes it inconvenient to handle the grounding wire ,Time-consuming

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