False switching preventing device for circuit breaker

Abstract

The invention relates to a circuit breaker auxiliary mechanism, in particular to a false switching preventing device for a circuit breaker. The false switching preventing device comprises a shell. A longitudinal through groove is formed in the side, adjacent to a circuit breaker on-off switch, of the outer surface of a side plate of the shell. The central line of the longitudinal through groove ishorizontally placed. The longitudinal through groove is internally provided with a movable rod for being connected with the circuit breaker on-off switch. The movable rod can move in the longitudinaldirection of the longitudinal through groove. A slide plate is arranged on the outer surface of the side plate of the shell. The false switching preventing device is characterized in that the slide plate is parallel to the plate surface of the side plate of the shell, the position of the slide plate corresponds to the position of the longitudinal through groove, and the slide plate can slide in the longitudinal direction of the longitudinal through groove on the side plate of the shell. A limiting through groove formed along the longitudinal through groove is formed in the slide plate corresponding to the longitudinal through groove, the outer end of the movable rod is located in the limiting through groove, and when the slide plate slides to the outer limit position along the side plateof the shell, one end of the slide plate extends out of a face plate of the shell, and the outward-extending end of the slide plate is provided with a ring latch hole. The false switching preventing device is convenient to operate and can prevent potential safety hazards.

Description

technical field [0001] The invention relates to an auxiliary mechanism of a circuit breaker, in particular to an anti-mis-closing device for a circuit breaker that prevents the circuit breaker from being closed by mistake when a power distribution line needs to be opened for maintenance. Background technique [0002] It is known in the electrical industry that when the circuit breaker is opened for maintenance, in order to prevent the circuit breaker from being closed due to external force for the safety of the maintenance personnel, the circuit breaker is usually equipped with an anti-mis-closing device. [0003] At present, the anti-mis-closing device for circuit breakers used in the electrical industry includes a housing. On the outer surface of the side plate of the housing, there is a longitudinal slot on the side adjacent to the opening and closing switch of the housing. The movable rod connected with the device opening and closing switch, the movable rod can move long...

AI Technical Summary

Problems solved by technology

However, after the anti-misoperation closing device of this structure is connected to the circuit breaker, its panel is almost completely flush with the panel of the circuit breaker cabinet, that is, the part of the fan-shaped sliding plate corresponding to the panel of the housing is also flush with the panel of the circuit breaker cabinet , when the rotating end of the fan-shaped sliding plate is drawn out along the arc track, it will interfere with the panel of the circuit breaker cabinet, which is inconvenient to operate

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