Double-cylinder mutual-control axial displacement mechanical lock

Abstract

The invention discloses a double-cylinder mutual-control axial displacement mechanical lock. The double-cylinder mutual-control axial displacement mechanical lock comprises a lock head body, a lock cylinder, a gate and a key, wherein the lock cylinder is divided into an upper cylinder body and a lower cylinder body; the lower cylinder body can shift in the axial direction in the lock head body; upper and lower locking mechanisms are disposed between the upper and lower cylinder bodies and the lock head body respectively; the key is provided with upper and lower face key grooves which are used for decoding the upper and lower locking mechanisms respectively; the lower cylinder body is further provided with a control mechanism used for controlling the upper locking mechanism; before the lower cylinder body moves in place in the axial direction, the upper locking mechanism does not meet the decoding condition; when the key decodes the lower locking mechanism firstly and then the key is used for pushing the lower cylinder body to move in place backwards in the axial direction, the gate is closed, at the same time, the control mechanism decontrols the upper locking mechanism so that the key can decode the upper locking mechanism, and the upper and lower cylinder bodies are driven by the key to rotate together so as to achieve unlocking. A novel idea and a novel method which exchange time difference with position difference are adopted, and the double-cylinder mutual-control axial displacement mechanical lock is one of locks which are the most effective and capable of preventing technical and violent unlocking at present in the world.

Description

technical field [0001] The invention relates to a lock, in particular to a two-core mutual control axial displacement mechanical lock. Background technique [0002] The most widely used in the existing various locks is the tumbler lock, and there are many deficiencies in various tumbler locks in actual use, and it is easy to be opened by people with a special-purpose dial lock tool. Due to the various defects in the traditional tumbler lock, its safety is greatly reduced, which provides convenience for the thief, resulting in frequent occurrence of various theft cases. In order to increase safety, the prior art proposes a double lock core structure, such as disclosed in patent publication numbers CN203925006U, CN203603627U and CN203769466U, but in these existing double lock core structures, their two lock cores are arranged side by side , Usually two keys are used to realize unlocking, which also has the above-mentioned disadvantages of being easily unlocked by technology o...

AI Technical Summary

Problems solved by technology

In order to increase safety, the prior art proposes a double lock core structure, such as disclosed in patent publication numbers CN203925006U, CN203603627U and CN203769466U, but in these existing double lock core structures, their two lock cores are arranged side by side , usually two keys are used to unlock the lock, and there are also the disadvantages of being easily unlocked by technology or violently.

The prior art also proposes a lockset with upper and lower tumbler structures, as disclosed in the patent publication number CN203514995U. It is equipped with two rows of tumbler mechanisms in a lock cylinder. After the key is inserted, the key is controlled, and the lock is pushed forward and pulled back. Unlocking, this kind of lock also has the disadvantage of being easy to be unlocked by technology or violently

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