Mechanical combination lock principle

The operation method of the mechanical combination lock is unique. It uses the dialing principle of the old telephone - start from the starting point of the dial, turn the dial clockwise to a certain digit, and then return to the starting point to enter a password. Repeat this until the last password is entered, and the lock can be unlocked. When unlocking, the internal lock position has been reset, so after closing the lock, the lock can only be unlocked again by re-entering the password. Compared with ordinary locks, this type of password lock has extremely high confidentiality, because if it is a six-digit password, there are more than 2.98 million sets of passwords for the owner to change at will, so many people like to use password mechanical locks. At this point, some people may say, can't today's smart password locks also achieve this effect? But this is not the case. Although the smart password lock is more advanced, if there is no power, the smart lock will face the problem of "paralysis", causing unnecessary trouble. And it is not easy to reset the password of the smart password lock. thing. Therefore, in some aspects, mechanical combination locks are also irreplaceable.

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