Clamp-type equipment grounding device

Abstract

The invention discloses a clamp-type equipment grounding device which comprises a switch body, a grounding wire movable terminal and a grounding wire fixation terminal. The grounding wire fixation terminal is arranged at a wiring end of the switch body; the top end of the grounding wire movable terminal is provided with a terminal connection rod; the terminal connection rod is a cylinder body; the side surface of the terminal connection rod is provided with a projection key; the top end of the grounding wire fixation terminal is provided with a connection hole cooperated with the terminal connection rod; the connection hole is provided with a notch; the notch can allow the projection key to pass through cooperatively; the inner wall of the connection hole is provided with a spiral groove; and the spiral groove is cooperated with the projection key, so that the terminal connection rod is allowed to be in locking cooperation with the connection hole. The beneficial effects of the clamp-type equipment grounding device are that the adopted connection device is convenient to use and reliable to connect; and under the condition that the fixation terminal is installed, safe and reliable connection can be achieved only by clamping the movable terminal to the fixation terminal without carrying out fastening operation.

Description

technical field [0001] The invention relates to a grounding device, in particular to a snap-fit ​​equipment grounding device. Background technique [0002] In the past, due to the large size of the clip-type grounding head, it was difficult and unreliable to attach the grounding wire when the switch outlet distance was small or the busbar width was large. Legacy products used clamp-type clamps to connect conductor ends. Due to the large size of the pliers clamp, it is difficult to install the grounding wire on some relatively compact equipment, such as the outgoing line of the distribution line on the user side, due to insufficient space; because it is only fixed by the occlusal force of the clamp, it is easy to install the ground wire due to the small friction force on the surface of the metal conductor. Loosening; the firmness of the connection is related to the size and shape of the conductor at the grounding part, and it is prone to unreliable fixation, which may cause ...

AI Technical Summary

Problems solved by technology

Due to the large size of the pliers clamp, it is difficult to install the grounding wire on some relatively compact equipment, such as the outgoing line of the distribution line on the user side, due to insufficient space; because it is only fixed by the occlusal force of the clamp, it is easy to install the ground wire due to the small friction force on the surface of the metal conductor. Loosening; the firmness of the connection is related to the size and shape of the conductor at the grounding part, and it is prone to unreliable fixing, which may cause safety hazards due to unreliable connection; some fixtures use toothed structures to increase friction in order to increase friction force, causing the actual contact area to decrease, and may cause damage to the conductor surface and increase the possibility of corrosion during later operation

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