Password disc without locking groove on outer periphery

Abstract

The invention discloses a password disc without a locking groove on an outer periphery. An outer disc is designed in a split mode, and consists of a first disc body and a second disc body; a hidden annular locking head blind groove and a locking blind groove are formed; the locking blind groove is effectively hidden, so that an unlocking position is hidden to improve the safety of a password lock;meanwhile, through an inner disc chamber formed by an outer disc circle center hole, an inner disc fixing mode is changed from traditional O-shaped spring fixation to in-groove arrangement, so that the fixing mode is firmer, and the performance is more stable; secondly, through unique design of a fixed poking head and a sliding poking head on an inner disc, in particular, the arc structural design of the sliding poking head, the strength and the positioning precision of the sliding poking head are exponentially increased; the password disc is simple in structure, and reduces the requirementson the production process of the outer disc; through split design of the outer disc, the production cost is greatly reduced; and through the same manufacturing process, the manufacturing precision ofthe outer disc is higher.

Description

technical field [0001] The invention belongs to the technical field of code disks for mechanical digital locks, and relates to a code disk without lock slots on the outer circumference. Background technique [0002] In the prior art, the locking slots of most of the mechanical digital discs are arranged on the outer circumference of the digital discs. The defects of this design scheme are also very obvious. The locking slots are set on the outer edge of the digital discs. There is a large gap between the level password disks, and the probe can be directly inserted into the accurate determination and positioning unlocking position by using the gap, and the technical unlocking is implemented, thereby greatly reducing the security performance of the password. The inner disk of the password disk) is fixed in the center hole of the outer disk with an "O" spring. Since the "O" spring is an elastic element, its elastic performance will decrease during long-term use, so its impact o...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the locking slots of most of the mechanical digital discs are arranged on the outer circumference of the digital discs. The defects of this design scheme are also very obvious. The locking slots are set on the outer edge of the digital discs. There is a large gap between the level password disks, and the probe can be directly inserted into the accurate determination and positioning unlocking position by using the gap, and the technical unlocking is implemented, thereby greatly reducing the security performance of the password. The inner disk of the password disk) is fixed in the center hole of the outer disk with an "O" spring. Since the "O" spring is an elastic element, its elastic performance will decrease during long-term use, so its impact on the inner disk The fastening capacity of the combination disk is also reduced, which may cause the "O" spring to rotate with the rotation of the inner disk during the decoding process, which may seriously affect the performance of the combination positioning pin as the combination disk, and may even make its Loss of function (the "O" spring notch deviates from the position of the positioning pin, which may prevent the positioning pin from engaging with the positioning teeth on the inner disc, thereby affecting the positioning function); finally, the diameter generated by the rotation of the sliding dial between the traditional digital locks during the code adjustment process Differences will be superimposed, and the error may be several times the standard error when it reaches the last level, which will affect the accuracy of code adjustment, and the sliding head of the transmission generally has a phenomenon that the strength and positioning accuracy are too low due to the design structure. Phenomena such as damage to the sliding head caused by the excessive force of the unlocker

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