Locking and unlocking mechanism of circuit breaker

Abstract

The invention discloses a locking and unlocking mechanism of a circuit breaker, and relates to the field of circuit breakers. The mechanism comprises a button, a wiring frame and a protection plate. The protection plate is arranged on the wiring frame in a covering manner; the button is located right above the protection plate and the wiring frame. A switch assembly is arranged between the protection plate and the button; the switch assembly is arranged in the protection plate in a penetrating mode and can move vertically. The switch assembly has a first state in which the switch assembly abuts against and cooperates with the protection plate when the button is in a non-opening state and the lower end of the switch assembly is exposed outside the protection plate to make the circuit breaker undetachable, and a second state in which the upper end of the switch assembly is inserted into the button and the lower end of the switch assembly retracts into the protection plate to make the circuit breaker detachable when the button is in an opening state. The locking and unlocking mechanism has the advantages of reliable assembly and stable operation.

Description

technical field [0001] The invention relates to the field of circuit breakers, in particular to a locking and unlocking mechanism of a circuit breaker. Background technique [0002] As a switch that can provide various protection functions, the circuit breaker can effectively improve the safety and reliability of electrical equipment and power lines. In order to meet the increasingly diverse needs of users, the specification diversification and miniaturization of circuit breakers is a trend; existing circuit breakers can be directly connected when they are not opened and installed in place. It is beneficial to the reliable and stable operation of the circuit breaker, but there are also potential safety hazards; after the existing circuit breaker is installed in place, there is a risk of being accidentally pulled out in the energized state, which is not conducive to the reliable operation of the circuit breaker and electrical equipment, and there is also a risk of Security r...

AI Technical Summary

Problems solved by technology

In order to meet the increasingly diverse needs of users, the specification diversification and miniaturization of circuit breakers is a trend; existing circuit breakers can be directly connected when they are not opened and installed in place. It is beneficial to the reliable and stable operation of the circuit breaker, but there are also potential safety hazards; after the existing circuit breaker is installed in place, there is a risk of being accidentally pulled out in the energized state, which is not conducive to the reliable operation of the circuit breaker and electrical equipment, and there is also a risk of Security risks

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