Circuit breaker with convenient maintenance

Abstract

The invention provides a circuit breaker with convenient maintenance. The circuit breaker comprises a shell. A circuit breaker body is fixedly installed in the shell. One side of the shell is providedwith a cover plate. Two sides of an outer surface of the shell are provided with clamping grooves. Two sides in the cover plate are provided with slots. Inner walls of the slots are fixedly connectedto first springs. One end of each of the first springs is fixedly connected to a trapezoidal block. One side of the trapezoidal block passes through a slot and extends to the internal part of a clamping groove. One side of the trapezoidal block in the clamping groove is provided with a slot hole, and a locking mechanism is clamped in the slot hole. A connection rod is welded to the other side ofthe trapezoidal block. One end of the connection rod passes through the cover plate and extends to the outer surface of the cover plate. According to the circuit breaker with convenient maintenance, through setting the first springs, the trapezoidal blocks and the slot holes, the circuit breaker cooperates with the locking mechanism, thus the disassembly of the cover plate and the shell is facilitated, thus the maintenance of the circuit breaker body after dismantling of the cover plate in the later period is facilitated, and thus the circuit breaker body can operate normally.

Description

technical field [0001] The invention relates to the technical field of circuit breakers that are easy to maintain, in particular to a circuit breaker that is easy to maintain. Background technique [0002] Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off the circuit when they are severely overloaded, short-circuited, or under-voltage. Its function is equivalent to a fuse-type switch. Combination with overheating and underheating relays, etc., and generally do not need to change parts after breaking the fault current. Electricity generation, transmission, use, and power distribution are an extremely important link; but the existing circuit breaker is installed in the shell Most of them are integrally formed at the time, which makes it more troublesome to disassemble the shell later and is not convenient for the maintenance of the circuit breaker. Contents of the inve...

AI Technical Summary

Problems solved by technology

[0002] Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off the circuit when they are severely overloaded, short-circuited, or under-voltage. Its function is equivalent to a fuse-type switch. Combination with overheating and underheating relays, etc., and generally do not need to change parts after breaking the fault current. Electricity generation, transmission, use, and power distribution are an extremely important link; but the existing circuit breaker is installed in the shell Most of them are formed in one piece, which makes it more troublesome to disassemble the shell later and is not convenient for the maintenance of the circuit breaker.

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