Lock head and key

A lock and key technology, which is applied in the field of mechanical locks, can solve the problems of small number of keys, mutual opening, and poor practicability of the lock, so as to achieve a large amount of key codes on the lock, and it is not easy to open or crack each other Effect
CN104453385AActive Publication Date: 2015-03-25四川王力安防产品有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
四川王力安防产品有限公司
Publication Date
2015-03-25

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Abstract

The invention discloses a lock head. The lock head comprises a shell, a core, a number marble, a flat-end marble, a first eccentric compression piece and a dial wheel piece and further comprises a first positioning pin key, a first pin key groove formed in the inner wall of the shell, a second eccentric compression piece arranged between the first positioning pin key and the core, and a driving part arranged on the number marble, capable of being combined with the first positioning pin key when the number marble rotates along with the core and used for driving the first positioning pin key to be rotated out of the first pin key groove. The eccentric compression force of the second eccentric compression piece makes the first positioning pin key embedded and reset in the direction of the first pin key groove, the number marble can provide multiple secret key codes when axially rotating in the key insertion process and when the core axially moves in combination with the change of the length of the number marble, and therefore the extremely good technical opening preventing capacity is achieved.
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Description

technical field

[0001] The invention relates to a lock head and a key, belonging to the field of mechanical locks. Background technique

[0002] People use locks to lock objects with accommodating spaces such as doors, safes or drawers to restrict others from entering or opening. Usually, common locks consist of a lock head and a lock that can be locked out and locked back through a series of transmission mechanisms. It is composed of a tongue. The general lock head is to unlock the core and the shell after the number pin is lifted by the key tooth, so that the core can rotate relative to the shell, and drive the cam linked with the core to toggle the unlock switch. It is called "pin lock". The existing "pin lock" makes the number pins into different heights to correspond to the key teeth of different heights. Only the change in the height direction makes the key quantity very limited. Different locks The phenomenon of using the same key to open each other happens from time...

Claims

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