Spiral anti-theft lock cylinder and anti-theft lock

Abstract

The invention discloses a spiral anti-theft lock cylinder and an anti-theft lock. In an initial state, first tumblers extend into second tumbler holes so that a lock cylinder body cannot rotate relative to a lock base and then a lock tongue cannot rotate; a spiral key is inserted by spiral rotation, so that a spiral portion of the spiral key is spirally matched with a spiral transmission portion,and concave grooves are in one-to-one correspondence with second tumblers; the spiral key is pressed forwards to drive the spiral transmission portion to move forwards and synchronously; meanwhile thebottom walls of the concave grooves abut against the second tumblers forwards, the second tumblers abut against the first tumblers, and thus first elastic parts are compressed, and the first tumblersare retracted into first tumbler holes; and the spiral key continues to be rotated to drive the spiral transmission portion, the lock cylinder body and the lock tongue to synchronously rotate to perform unlocking or locking. As the spiral key is spirally matched with the spiral transmission portion during unlocking or locking, the spiral transmission portion can shield the second tumblers, the lock cannot be directly pried up through a lockpick, unlocking is not allowed even through a master key, and the lock cylinder is good in anti-theft property.

Description

technical field [0001] The invention relates to a spiral anti-theft lock core, a spiral anti-theft lock core and an anti-theft lock. Background technique [0002] Anti-theft locks currently on the market can be divided into pin locks, blade locks, magnetic locks, IC card locks, fingerprint locks, etc. according to the different lock cylinders. Pin locks and magnetic locks are more common, such as inline locks, cross locks, computer locks, etc. all belong to pin locks. In the existing pin lock, the lock core hole is in a straight hole state, and the lock picking tool with the current straight rod structure can be stabbed to the end. When the technology is opened, it only takes tens of seconds to turn the pin in the lock core by the key. Clock just can reach the purpose of opening, and anti-theft performance is relatively poor. Contents of the invention [0003] The invention provides a spiral anti-theft lock core, a spiral anti-theft lock core and an anti-theft lock, whic...

AI Technical Summary

Problems solved by technology

In the existing pin lock, the lock core hole is in a straight hole state, and the lock picking tool with the current straight rod structure can be stabbed to the end. When the technology is opened, it only takes tens of seconds to turn the pin in the lock core by the key. Clock can achieve the purpose of opening, the anti-theft performance is relatively poor

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