Switch cabinet cable chamber door interlocking device

Abstract

The invention relates to a switch cabinet cable chamber door interlocking device, which consists of a front door assembly and a rear door assembly, wherein a state rope and an opening and closing rope are arranged between the front door assembly and the rear door assembly, wherein the state rope is connected with a slider latch, a front door press key and a rear door press key, the opening and closing rope is connected with a front door latch and a rear door latch, the front door press key is connected with the slider latch and drives the slider latch to move, the rear door assembly is connected with the slider latch and drives the slider latch to move, the stroke of the front door press key driving the slider latch or the stroke of the rear door press key driving the slider latch is not enough to enable the slider latch to relieve the locking for an earthing knife-switch, and the stroke of the front door press key driving the slider latch and the stroke of the rear door press key driving the slider latch are enough to enable the slider latch to relieve the locking for the earthing knife-switch. According to the technical scheme, opening and closing of interlocking of the front door assembly and the rear door assembly are realized by the opening and closing rope, and interlocking of a front door and a rear door for the slider latch is realized by the state rope, so that the front door assembly and the rear door assembly are connected by a simple and effective method, and the goal of interlocking is achieved.

Description

technical field [0001] The invention relates to an interlock mechanism for a switch cabinet door, in particular to an interlock device for a switch cabinet cable chamber door. Background technique [0002] The medium and low voltage switchgear is equipped with high-voltage and high-voltage power equipment such as circuit breakers and separators. The voltage transmitted by it is measured in kilovolts, and the power transmitted by it is tens of thousands, which shows the huge amount of electric energy it transmits. Therefore, in order to avoid unnecessary consequences and serious losses caused by electric shock injury or accidental power-on when installation, maintenance, maintenance, etc. involve the actual operation that needs to be close to the switchgear, the industry puts forward five prevention requirements for the switchgear. The specific requirements are as follows: [0003] 1. Prevent mis-opening and closing of circuit breakers. [0004] 2. Prevent load opening and...

AI Technical Summary

Problems solved by technology

The existing interlocking device of the cable room door of the switch cabinet is very complicated, especially the linkage between the front door and the rear door is realized by a rod mechanism, the number of parts is large, and the installation and debugging are troublesome

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