An earthing switch closing and opening indication and locking device

Abstract

The invention discloses a grounding switch closing and separating indicating and locking device comprising an installing plate, a rotating shaft mechanism, a separating and closing mechanism and a locking mechanism. The rotating shaft mechanism comprises an operation spindle which is provided with a closing and separating cam and a locking cam. The closing and separating mechanism comprises a closing and separating linkage rod, a closing moving contact, a separating moving contact, a closing static contact and a separating static contact. The bottom part of the closing and separating linkage rod is provided with a closing and separating reset mechanism. The locking mechanism comprises a locking linkage rod and a locking member. The locking member comprises a locking fixing plate and a locking hole. The bending end of the locking linkage rod can be inserted into the locking hole to form locking. The locking linkage rod is provided with a locking reset pressing plate. The locking linkagerod between the locking reset pressing plate and the locking guide plate is sleeved by a locking reset spring. Closing and separating and locking are linked so that locking is enabled to be effectivein case of separating and live misoperation can be avoided; and locking is also released under rotation of the operation spindle in case of closing so as to be reliable and safe.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment, and in particular relates to a grounding switch closing and opening indication and locking device. Background technique [0002] Over the years, the statistics of a large number of electrical accidents show that personal electric shock casualties and electrical equipment accidents are often directly related to the technical and professional level of electrical workers, and electrical workers must strictly operate in accordance with electrical safety work procedures. The switchgear is an important electrical equipment. When the power is cut off due to maintenance, the circuit breaker needs to be opened first, and then the isolating switch is opened. The cabinet door can only be opened after the grounding switch is closed. This is the operating procedure that must be followed. , otherwise it will cause electrified misoperation, and there will be safety hazards. However, in the actual ...

AI Technical Summary

Problems solved by technology

The switchgear is an important electrical equipment. When the power is cut off due to maintenance, the circuit breaker needs to be opened first, and then the isolating switch is opened. The cabinet door can only be opened after the grounding switch is closed. This is the operating procedure that must be followed. , otherwise it will cause electrified misoperation, and there will be safety hazards

However, in the actual operation process, the cabinet door is often opened when the grounding switch is not closed, resulting in live work by the operator, with a high risk factor

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