A mechanism for interlocking the operating shaft of the isolating switch and the door of the cabinet applied in the switch cabinet

Abstract

The invention discloses a mechanism for enabling an isolation switch operation shaft to be interlocked with a cabinet door for a switch cabinet. The mechanism comprises the isolation switch operation shaft. A cabinet body is equipped with a vertical rod capable of moving up and down and is fixedly connected with a first support; the upper portion of the vertical rod is fixedly connected with a baffle plate; the first support is equipped with a slide block capable of moving forward or backward and a linkage plate capable of moving up and down; the lower portion of the slide block is provided with an inclined surface; the front end of the slide block is fixedly connected with the cabinet door; the linkage plate is fixedly provided with a first transverse shaft which is cooperated with the inclined surface; the back upper portion of the cabinet door is fixedly connected with a baffle block; and a pressure spring is arranged between the linkage plate and the first support. The cabinet door opens and drives the slide block to move forward, and the slide block abdicates through the inclined surface; the pressure spring drives the linkage plate to move up; the linkage plate drives the vertical rod to move up; the baffle plate of the vertical rod baffles the operation end of the operation shaft; the operation shaft is fixedly connected with a cam; and when an isolation switch is in a close state, the cam supports the upper portion of the vertical rod, and the lower end of the vertical rod stops the baffle block from moving forwards. The mechanism ensures high-reliability interlocking, and is compact in structure.

Description

technical field [0001] The invention relates to the technical field of switch cabinet manufacturing, in particular to a mechanism for interlocking the operating shaft of a disconnector and a cabinet door in a switch cabinet. Background technique [0002] In order to improve the safety of the switchgear, when designing the switchgear, it is usually required that the switchgear door and the operating shaft of the isolating switch be interlocked, that is, the isolating switch cannot be closed when the switchgear door is opened, and when the isolating switch is closed, The switch cabinet door cannot be opened. [0003] At present, there are many kinds of interlocking mechanisms on the market, each with its advantages and disadvantages. For example, on July 03, 2013, an invention patent with the patent number ZL201320059567.7 and the name "Switch Cabinet" was published, which includes Circuit breaker, door, door lock, first linkage (2), second linkage (3), first linkage shaft (4...

AI Technical Summary

Problems solved by technology

However, its linkage mechanism is relatively complicated, and the reliability of the action needs to be improved.

Images