Interlocking mechanism of low-pressure drawer type switch cabinet

Abstract

The invention discloses an interlocking mechanism of a low-pressure drawer type switch cabinet. The interlocking mechanism comprises a torsion arm, a fan-shaped wobble wheel and a gear rack, wherein the fan-shaped wobble wheel is driven by the torsion arm; the gear rack is fixedly arranged on a leading-in plug; a square driving block is arranged on a rotating shaft of the torsion arm; the center of the fan-shaped wobble wheel is mounted on the square driving block; a gear is arranged on a wheel rim of the fan-shaped wobble wheel; the gear is meshed with the gear rack; and a limiting block is arranged at a position corresponding to a stoppage position of the torsion arm. The interlocking mechanism of the low-pressure drawer type switch cabinet, which is provided by the invention, the driving is carried out by adopting a gear rack transmission way; the leading-in plug can stably enter a leading-in plug operating hole; the running stability of the whole interlocking mechanism is guaranteed; moreover, due to the existence of the limiting block, the possibility of misoperation can be further prevented; the fan-shaped wobble wheel is guaranteed not to be disengaged from the gear rack; moreover, the torsion arm is guaranteed to be in elastic contact with the limiting block by means of a supporting spring; and the running safety of the whole mechanism is guaranteed.

Description

technical field [0001] The invention relates to an interlocking mechanism of a low-voltage drawer type switch cabinet. Background technique [0002] Invention Patent No. 200710047592 discloses a misoperation-preventing interlocking device for a low-voltage drawer-type switchgear. In this patent, the main handle 01 of the interlock control drives the hanger pin 2 to perform circular swing, and the swing of the hanger pin 2 pushes the lock pin 3 to move in a straight line, thereby enabling the incoming plug to enter the plug operation hole 5 . [0003] The problem created by this invention is that the swing of the hanger pin 2 drives the lock pin 3 to do linear motion, and its motion itself is not stable enough, and because the force point of the lock pin 3 changes all the time, so the incoming line plug is also moved forward. During the process, due to the existence of torsion force, slight deflection is prone to occur, which makes the contact between the inlet plug and the ...

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Problems solved by technology

[0003] The problem created by this invention is that the swing of the hanger pin 2 drives the lock pin 3 to move linearly, the motion itself is not stable enough, and because the stress point of the lock pin 3 changes all the time, so the incoming line plug is also moved forward. During the process, due to the existence of torsion force, it is easy to have a small deflection angle, which makes the contact between the inlet plug and the operation hole 5 of the inlet plug not stable enough

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