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Modified door lock mechanism

A technology of door locks and lock cylinders, which is applied to building locks, lock casings, building structures, etc., can solve the problems of incomplete anti-theft performance, and achieve the effects of strong anti-theft performance, simple and compact structural design, and wide application range

Inactive Publication Date: 2014-03-05
WENZHOU JINFU LOCK LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that the anti-theft performance of ordinary door locks in the prior art is not perfect when they are violently damaged, the present invention provides an improved door lock mechanism. When a certain degree of violent damage occurs, it can actively restrict the rotation and opening of the unlocking dial, which enhances the anti-theft performance and high reliability

Method used

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Embodiment Construction

[0016] As shown in the figure, the present invention includes a connected left lock core body 1 and a right lock core body 2. The left lock core body 1 and the right lock core body 2 can be integrally formed, or connected and fixed by a connecting rod 26 . The left transmission block 6 is connected and driven between the unlocking dial 5 and the left lock core shaft 3, and the left transmission block 6 passes through the left fixed block 17a arranged between the unlocking dial 5 and the left lock core shaft 3, and the unlocking dial 5 Connect and drive by right transmission block 7 between right lock core shaft 4, right transmission block 7 passes through the right fixed block 17b that is arranged between unlock dial 5 and right lock core shaft 4. The specific structure of the above-mentioned connection transmission can be formed on one side of the left transmission block 6 and the right transmission block 7 to form a dial convex joint 19, and on the other side to form a lock c...

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Abstract

The invention relates to a modified door lock mechanism comprising cylinder blocks, cylinder shafts and an unlocking shift wheel. The unlocking shift wheel is in drive connection with the cylinder shafts through drive blocks. The drive blocks penetrate fixing blocks disposed between the unlocking shift wheel and the cylinder shafts. Each fixing block is sleeved with a ring and provided with an internal through locking pinhole which accommodates a drive pin. Each cylinder shaft is provided with a balance spring and an ejector pin inside. The unlocking shift wheel is eccentrically provided with a sliding locking pin inside. Two ends of the sliding locking pin are fitted to the ejector pins on two sides respectively through the drive pins in the locking pinholes on two sides. The fixing blocks are connected with the cylinder blocks through screws. The cylinder blocks are sleeved with a protective sleeve by means of clamping, and the protective sleeve is provided with protective jaws pressing against the rings. According to the modified door lock mechanism, when one lock cylinder on one side is forcibly broken, rotating and unlocking of the unlocking shift wheel can be actively limited; the modified door lock mechanism has the advantages of compact structure, good burglar prevention, wide range of application and high reliability.

Description

technical field [0001] The present invention relates to an improved door lock mechanism. Background technique [0002] Existing common door lock, under the situation that one side lock core body is destroyed violently, the thief can open the door lock by stirring the unlocking dial, therefore, its anti-theft performance is not very perfect from a certain point of view. Contents of the invention [0003] In order to overcome the problem that the anti-theft performance of ordinary door locks in the prior art is not perfect when they are violently destroyed, the present invention provides an improved door lock mechanism. When a certain degree of violent damage occurs, it can actively restrict the rotation and opening of the unlocking dial, which enhances the anti-theft performance and high reliability. [0004] The technical solution adopted by the present invention to solve the technical problem is: comprising a connected left lock core body and a right lock core body, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05B15/14E05B15/00
CPCE05B9/042E05B17/2092
Inventor 徐钜祥
Owner WENZHOU JINFU LOCK LTD
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