Anti-theft safety turn lock

Abstract

An anti-theft security rotary lock comprises a lock shell, a lock rod and a lock tongue, wherein the lock shell is provided with an assembly hole; the lock rod is mounted in the assembly hole in an inserting manner; the lock rod is axially positioned relative to the assembly hole and is in running fit with the assembly hole; one end, facing towards the back side of the lock shell, of the lock rod is fixedly connected with the lock tongue, and a key action section is arranged at one end, facing towards the front side of the lock shell, of the lock rod; the anti-theft security rotary lock is characterized in that the key action section is sleeved with a lock core cover which forms sliding fit with the key action section in the axial direction; a shaft shoulder is arranged on the lock rod at the root part of the key action section, and an axially-acted spring is arranged between the shaft shoulder and the lock core cover; first axial guide grooves are formed in the inner wall of the assembly hole; a circle of circumferential guide groove, corresponding to lateral wings, is formed in the inner wall of the assembly hole in the circumferential direction of the assembly hole, and is axially formed between the two ends of the key action section along the key action section, and the first axial guide grooves are communicated with the circumferential guide groove. The anti-theft security rotary lock has the anti-theft function, and the use is safer and more reliable.

Description

technical field [0001] The invention relates to locks, in particular to industrial rotary locks for industries such as rail transit, wind power generation, and communication equipment. Background technique [0002] On vehicles or equipment in rail transit, wind power generation, communication equipment and other industries, a large number of industrial locks are used to lock the door body or window. Chinese patent CN202030396U discloses an invention patent titled "A Safety Rotary Lock". The patented lock includes a lock case, a lock cylinder and a turning tongue, wherein the lock case has an assembly hole, and the lock cylinder is inserted into the assembly hole. Inside, the lock cylinder is axially positioned relative to the assembly hole and rotated to match the assembly hole. The end of the lock cylinder facing the front of the lock housing is provided with a key action section, and a lock cylinder cover is provided in the assembly hole on the front of the lock housing. ...

AI Technical Summary

Problems solved by technology

The above-mentioned patent makes the state of unlocking and locking more stable, but there is a problem of anti-theft. Use the key to insert the end of the lock cylinder that matches the key to turn the lock cylinder to realize the opening and closing of the lock. This kind of lock is mostly used outdoors. The end of the lock cylinder that matches the key is exposed and visible. As long as the key that matches the end can be obtained, the lock can be opened, which poses a safety hazard.

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