A three-position spring operating mechanism

Abstract

The invention discloses a three-position spring operating mechanism which comprises symmetrically disposed front and rear clamping plates between which an energy storage control mechanism is fixedly installed. An interlocking mechanism is arranged on the other side of the front clamping plate. The interlocking mechanism comprises an operation interlocking mounting plate fixedly disposed on the front clamping plate; an operation hole locking plate slidably arranged on the operation interlocking mounting plate; a guiding mechanism; a closing and opening position locking plate; a main knife operating shaft and a ground knife operating shaft disposed at the upper and lower ends of the guiding mechanism. The guiding mechanism has a first position that is driven by a closing and opening positionshift fork to be in stopping engagement with the stopping portion of the main knife operating shaft and a second position to be in stopping engagement with the stopping portion of the ground knife operating shaft, thereby achieving an effect that one interlocking component realizes reliable interlock between the main knife operation hole and the ground knife operation hole, ensuring the logical operation sequence of the mechanism, improving the disadvantages that a plurality of independent components lock the operation holes in the past, improving the complicated linkage program between multiple components, reducing many fault point, making the interlocking device more concise and reliable than a previous interlocking device, achieving simpler and clear operation, reducing a misoperationprobability, achieving good practicality.

Description

technical field [0001] The invention relates to the technical field of electric equipment, in particular to a three-position spring operating mechanism. Background technique [0002] The three-station operating mechanism is widely used in the high-voltage ring network cabinet, and cooperates with the circuit breaker to switch on and off the main circuit. The current three-position operating mechanism is mainly driven by the main shaft to realize the closing, opening and grounding operations of the circuit breaker, and the interlocking device of the three-position switch operating mechanism is an important part of the switch operating mechanism to prevent misoperation. As well as improving the protection level of the mechanism room, its reliability and stability play a vital role in the normal operation of the switchgear and the safety of the staff. [0003] However, most of the existing three-station operating mechanisms use multiple sets of independent components to block ...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing three-station operating mechanisms use multiple sets of independent components to block each operating hole, so cumbersome linkage steps are required between each set of interlocking devices, so there will be more failure points

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