Low-voltage circuit breaker safety lock

Abstract

The invention discloses a low-voltage circuit breaker safety lock which comprises a front limiting plate, a rear limiting plate and a lock hook, the front limiting plate and the rear limiting plate are rotationally connected with each other, and the lock hook is fixedly connected to one side of the front limiting plate; a first abutting part is arranged at one end of the front limiting plate, anda plurality of first locking holes are formed in the other end of the front limiting plate. One end of the rear limiting plate is provided with a second abutting part, and the other end of the rear limiting plate is provided with second locking holes in one-to-one correspondence with the first locking holes. The front limiting plate and the rear limiting plate are mutually opened and rotated, thefirst abutting part and the second abutting part are inserted into grooves in the two sides of a circuit breaker surface cover respectively, and meanwhile, the lock hook hooks the back of a circuit breaker handle; when the circuit breaker is locked, the front limiting plate and the rear limiting plate are mutually folded and rotated, at the moment, the first abutting part and the second abutting part clamp the grooves of the circuit breaker surface cover, and fixing pieces penetrate through the first locking holes and the second locking holes to complete the locking of the circuit breaker. Thecircuit breaker handle is limited, so that the handle cannot be closed; and the safety of constructors is ensured.

Description

Technical field[0001]The invention relates to the technical field of locks, and more specifically, it relates to a low-voltage circuit breaker safety lock.Background technique[0002]In scenes such as home or business, when repairing the circuit, the circuit breaker in the circuit must be in the off state; in order to ensure that the maintenance personnel will not be closed during the maintenance work, it must be equipped with error prevention Operate the device to avoid the occurrence of equipment damage, property loss and personal injury.[0003]The existing circuit breaker adopts a key lock on the outer cover of the circuit breaker, which increases the space of the circuit breaker itself, and makes it impossible to install accessories on the side of the circuit breaker, causing the circuit breaker to be incomplete; and this method does not remove the circuit breaker. The handle is directly locked, there is still a safety hazard.Summary of the invention[0004]In view of the deficiencie...

AI Technical Summary

Problems solved by technology

[0003] The existing circuit breaker uses a key lock on the cover of the circuit breaker, which increases the space of the circuit breaker itself, making it impossible to install accessories on one side of the circuit breaker, resulting in incomplete function of the circuit breaker; The handle is directly locked, and there are still potential safety hazards

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