Lock head adopting vane spring idle rotation lock master structure and the key thereof

Abstract

The invention discloses a lock adopting a leaf pin idling lock core structure and a key. A locking side post matching with a V-shaped groove on a leaf pin is arranged on the front lock core of the lock, a sliding block groove communicates with the locking side posts. A lockpin is arranged in the lockpin sliding slot on the rear lock core. The sliding block radially matching with the locking side post is arranged in a locking side post groove. At least two contact parts with inclines are provided along the axial direction of the lock core between the sliding block and the locking side post. One end of the sliding block is positioned in the sliding block slot and is contacted with the lockpin on the rear lock core. One side of the leaf pin is provided with a protruding part matching with the boss with bits on the key. Only one side of the key is provided with the boss of a thinner thickness. The lock is capable of reducing the mutual opening rate and preventing a thicker tool from being inserted in a lock hole for violent unlocking.

Description

technical field [0001] The invention belongs to mechanical locks, and relates to a lock head and a key adopting a blade pin idling lock cylinder structure. Background technique [0002] Chinese Patent No. ZL200710034226.3 document discloses a lock core clutch structure that the pin lock lock core can idle, such as figure 1 As shown, it includes a lock body 2', a front lock cylinder 6' and a rear lock cylinder 12' in the lock body 2', and the front lock cylinder 6' is provided with a V-shaped groove 15' that can be matched with the V-shaped groove 15' on the blade pin 4'. The matching locking side column 3' is provided with a slider chute 13' communicating with the locking side column groove on the front lock core 6', and a lock pin chute 9 corresponding to the slider chute 13' on the rear lock core 12' The locking pin 14' is placed inside the slider 13', and the sliding block 1' is placed in the sliding block chute 13'. The sliding block 1' is in contact with the locking si...

AI Technical Summary

Problems solved by technology

This lock cylinder clutch structure has some shortcomings in practical applications. The main problem is that there is only one contact part between the sliding block 1' and the locking side column 3'. , such as the front-end teeth of the key match the pins (although other teeth do not match), the corresponding end of the locking side column 3' will move radially inward along the lock cylinder, and under the action of the lock pin return spring, the lock pin 14 ' and the sliding block 1' will move inward along the axial direction of the lock cylinder for a short distance, and at this time, a small part of the lock pin 14' will extend into the front lock cylinder 6', connecting the front and rear lock cylinders 6' and 12' Integrate to realize unlocking, so that the mutual opening rate of the lock is increased, and the anti-theft performance is affected

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