A switch cabinet five-proof interlocking mechanical lock

Abstract

The invention discloses a five-prevention interlocking mechanical lock of a switch cabinet. The five-prevention interlocking mechanical lock comprises a key and a lock, wherein the lock comprises an outer lock plate, an inner lock plate, a lock cylinder, a lock case, a spring, a plurality of lock pins and a lock tail, and when the key passes through a first key shaft hole of the outer lock plate and a second key shaft hole of the inner lock plate and is inserted into a third key shaft hole of the lock cylinder, the lock pins are pushed to move away from the inner lock plate by a key piece, sothat the lock cylinder is driven to rotate to unlock by the key. Compared with the prior art, the five-prevention interlocking mechanical lock has the following advantages that (1) the five-preventioninterlocking mechanical lock can be installed in different interlocking mechanisms, so that the functions of a ring network cabinet five-prevention interlocking mechanism are realized; (2) differenttwo kinds of two locks and one key are used in pairs, so that the correctness of open and closed circuits can be guaranteed; (3) when the key is reset, the key automatically pops from a lock hole, sothat the lock cylinder is successfully positioned, and the operability is high; (4) the structure is simple and compact, the reliability and safety are high, and the cost is low; and (5) a marble doesnot exist in the lock, so that the inherent defects of a pin tumbler lock are overcome.

Description

technical field [0001] The invention relates to the technical field of switch cabinets in the electric power industry, in particular to a five-proof interlocking mechanical lock for a switch cabinet. Background technique [0002] The five-proof interlocking function of the ring network cabinet includes preventing mis-opening and closing of the circuit breaker; preventing the disconnection and closing of the isolating switch with load; preventing the live connection (closing) of the grounding wire (grounding switch); preventing the closing of the grounding wire (switch); Prevent strayed into live compartment. In order to realize the five-proof interlocking function, a mechanical lock is required to operate the five-proof interlocking mechanism. The lock can form at least two types of two locks and one key, and the keys of various types of locks cannot be used in common. At present, all imported locks are used in this field, which have high cost, complicated structure and low...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a switch cabinet five-proof interlocking mechanical lock with simple structure, good reliability and low cost in view of the problems of high cost, complex structure and low reliability of the existing imported locks

Images