Lock with double lock cylinders

Abstract

The invention discloses a lock with double lock cylinders. The lock with the double lock cylinders comprises a lock body, lock cylinders which can be installed in the lock body and a lock pusher used for achieving opening and closing of the lock; the lock cylinders are composed of an external lock cylinder and an internal lock cylinder, one end of the lock pusher is installed on an internal lock cylinder rotary head on the internal lock cylinder in a matched mode, the other end of the lock pusher is installed on an external lock cylinder rotary head on the external lock cylinder in a matched mode, a pull-apart groove is formed in the portion, close to the external lock cylinder, of the lock body, a positioning hole is formed in the portion, close to the internal lock cylinder, of an inner component, a pin hole which is matched with the positioning hole is formed in the lock body, a positioning bead is contained in the pin hole, the positioning bead is fixed in the pin hole through a positioning bead upper bead, springs and bolts, the two sides of the lower end of the lock body are each provided with pin holes used for installing pin beads and pin springs, and bolts which are used for fastening the pin beads and the pin springs are installed on the ports of the pin holes. The lock with the double lock cylinders is reasonable in structure, and the protecting effect and safety performance of door locks are greatly improved.

Description

【Technical field】 [0001] The invention relates to the technical field of door lock equipment, in particular to a double lock cylinder lock head. 【Background technique】 [0002] The tumbler lock that family uses is usually made up of lock housing and two horizontally arranged lock cores at present, is connected with lock head shift fork by inner assembly between two lock cores. When the key is inserted into the keyhole, the key will push the upper pin just out of the pin hole of the lock cylinder, and at the same time push the inner component to the lock cylinder on the other side. At this time, the lock cylinder can be rotated by twisting the key, and at the same time, the inner assembly is driven, and then the inner assembly drives the lock fork to move the dead bolt to open the lock. Such action can be completed inside and outside the door, therefore, it is more convenient to use. [0003] However, most of the existing double lock core locks on the market have the proble...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a double lock cylinder lock head, which aims to solve the technical problems of low protection function and poor security of door locks in the prior art

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