Operating mechanism for circuit breaker

Abstract

The invention relates to an operating mechanism of a circuit breaker, particularly to an operating mechanism of a circuit breaker, a cover plate of which can be conveniently disassembled and assembled. The operating mechanism comprises a cover plate, a right side plate and a left side plate; projecting lugs are arranged on the back sides of the left and the right side plates and used for being connected with a base of a circuit breaker body; clamping grooves are formed on the upper end surfaces of the left and the right side plates close to the front and the rear sides; the openings of the clamping grooves are positioned on the front sides; and tenons matched with the clamping grooves are correspondingly arranged on the cover plate. The operating mechanism is characterized in that a lock groove is formed on the side wall of the cover plate, which is opposite to the side plate; a screw hole is formed on one side plate correspondingly and vertically penetrates the side plate; a lock screw passes through the screw holes and is matched with the rear side wall of the lock groove.

Description

technical field [0001] The invention relates to an operating mechanism of a circuit breaker, in particular to an operating mechanism of a circuit breaker which can conveniently disassemble a cover plate. Background technique [0002] In the current common circuit breaker operating mechanism, one of the connection structures between the cover plate and the side plate is that the cover plate and the side plate are connected by hooks, and then the cover plate is connected with the lug screws of the side plate to realize the cover plate. The fixed connection with the side plate, while the fixed connection between the side plate and the body base is also realized through the connection of the screw, such as the "Circuit Breaker Operating Mechanism" with the Chinese Patent No. 02137898.3 and the authorized announcement date being July 14, 2004 The connection structure between the cover plate and the side plate” is a similar structure, but the defect of this structure is: because t...

AI Technical Summary

Problems solved by technology

[0002] In the current common circuit breaker operating mechanism, one of the connection structures between the cover plate and the side plate is that the cover plate and the side plate are connected by hooks, and then the cover plate is connected with the lug screws of the side plate to realize the cover plate. The fixed connection with the side plate, while the fixed connection between the side plate and the body base is also realized through the connection of the screw, such as the "Circuit Breaker Operating Mechanism" with the Chinese Patent No. 02137898.3 and the authorized announcement date being July 14, 2004 The connection structure between the cover plate and the side plate” is a similar structure, but the defect of this structure is: because the cover plate and the circuit breaker body base are locked by screws, when the cover plate is removed, The entire operating mechanism will be loosened, which will affect the performance and technical parameters of the circuit breaker

Although this structure can quickly install and disassemble the cover plate, the structure of this locking device is relatively complicated and requires high processing requirements, and the reliability of the elastic structure is relatively limited. Make the entire locking device invalid, and more importantly, when removing the cover, the user needs to press down the locking piece with a screwdriver with one hand and pull out the cover with the other hand. Obviously, this operation is very difficult, especially for To ensure the reliability and stability of the installation of the cover, it is necessary to install such a locking device on the sides of the two side panels, which makes it more difficult to remove the cover. It is impossible for one person to complete it, and it requires the cooperation of multiple people. Obviously, Such a structure is still inconvenient

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