Mechanical cipher device with double adjustable surfaces

Abstract

The invention discloses a mechanical cipher device with double adjustable surfaces, and belongs to the field of machinery. The mechanical cipher device comprises a shell, a shaft, outer cipher wheels, inner cipher wheels, a cipher setting switch, withdrawal preventive barriers, a withdrawal mesh switch and reset switches. Linear grooves and annular grooves are formed in the shaft, cipher identities are machined on the outer cipher wheels, and the outer cipher wheels are meshed with the inner cipher wheels via bevel gears; the inner cipher wheels are sleeve-shaped, and bumps are arranged on the inner walls of sleeves; the bumps of the inner cipher wheels slide in the annular grooves and the linear grooves of the shaft, so that an unlocking state and a locking state of the cipher device can be switched over; the inner cipher wheels and the outer cipher wheels can be withdrawn from meshed states, so that new ciphers can be set. The mechanical cipher device has the advantages that the mechanical cipher device is simple in structure and operation, operation such as cipher modification can be implemented on the double surfaces of the mechanical cipher device, the possibility of technically unlocking the mechanical cipher device is completely eradicated, and accordingly the mechanical cipher device is high in safety.

Description

technical field [0001] The invention belongs to the field of machinery, and in particular relates to a mechanical encryption device. Background technique [0002] With the development of society and the progress of technology, there are more various technologies related to locks or cryptographic devices with switch functions. Among them, most of the locks that are directly opened by the key are locked and opened by the combination of the lock cylinder pin and the shaft. Because the volume of the lock cylinder pin of the lock is limited by the volume of the lock hole, most of them are the size of rice grains, which can be strongly damaged. Small and large lock cylinder pins are easy, so the security of this type of lock is poor. At present, the password of the password device equipped on most domestic safes can only be set by the manufacturer of the safe during the production process, and the password cannot be changed. And there are various links such as production, transp...

AI Technical Summary

Problems solved by technology

But above-mentioned combination lock can only realize the one-side adjustable of password, as this lockset is used in occasions such as bank treasury, because it can only be reset to password on one side of the door, it is inconvenient to use; And this kind The structure of the lock is relatively complex

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