Lock cylinder fixed type mechanical anti-theft lock used for safes

Abstract

The invention provides a lock cylinder fixed type mechanical anti-theft lock used for safes, and relates to the field of anti-theft locks. The lock cylinder fixed type mechanical anti-theft lock mainly aims at solving the problem that the related patented technology with a lock cylinder fixed type cross mechanical anti-theft lock as the core cannot be directly used together with the large safes ina matched manner. According to the scheme, a cam mechanism in the core technology mentioned above is omitted and is replaced with a lock block capable of reciprocating, the special structure of the lock block has the control effect, the same as that for the cam mechanism, for a lock cylinder set, and a jamming effect can be achieved for a lock bolt drive and transmission device by movably inserting a clamping pin, arranged on the lock drive and transmission device, in the lock block; during unlocking, unlocking is driven through wheel handles of overload protection devices arranged on the safes themselves, and keys can still only be inserted and pulled and cannot be rotated; and the existing patent core technology mentioned above and functions are not changed, the safety performance of the new product is remarkably improved, the lockset structure is substantially simplified, cost is low, and performance is stable and reliable.

Description

technical field [0001] The invention relates to an anti-theft lock, in particular to a mechanical anti-theft lock with a lock core fixed for a safe. Background technique [0002] In order to overcome the various disadvantages of the existing mechanical anti-theft locks and fingerprint code locks in the market, a series of products have been developed using the patented core technology of "a fixed cross mechanical anti-theft lock with a lock cylinder" (ZL201410020215.X), including "a A digital code, a single key combination kit" (ZL201610067763.7), "a profiling device for a key matching machine" (ZL201610068057.4), "a lock core fixed cross mechanical anti-theft lock matching a fingerprint lock" (ZL201610990489 .0), "A Cam Mechanism for Fingerprint Locks" (ZL201611045195.7), "Double Plug Anti-theft Door and External Locking Device" (ZL201610129609.8), "A Forced Reset Device for Rotating Rings of Anti-theft Locks" (ZL201710390280.5), "Fingerprint Lock Cam Mechanism and Rotatin...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned deficiency that the relevant patented technology centered on "a cross mechanical anti-theft lock with a fixed lock core" cannot be directly used in conjunction with a large safe, the present invention provides a mechanical anti-theft lock with a fixed lock core for a safe , using the overload protection device of the wheel handle of the original safe and other lock bolt drive transmission devices, the cam mechanism in the above core technology is canceled and replaced by a reciprocating locking block. The special structure of the locking block can It has the same control function as the cam mechanism on the lock cylinder group, and then the locking block is movably assembled with the lock bolt driving transmission device and can move synchronously, so as to block the lock bolt driving transmission device, that is, when the key When it is correct, the lock bolt driving transmission device can move synchronously with the locking block to the end and open the door leaf; The key unlocking method completes the opening and closing of the safe door leaf. At the same time, the performance characteristics of the original core technology remain unchanged, and the lock structure is greatly simplified and the cost is reduced.

Images