Magnetic drive type mechanical coded lock

Abstract

The invention discloses a magnetic drive type mechanical coded lock, and relates to the field of rotary disc number matching type mechanical coded locks. Number matching operation is completed by directly rotating six knob discs, lever handles drive a cam mechanism to rotate to realize unlocking and locking; during number matching, after the linkage shafts movably connected with the rotary knob shafts penetrate through a lock body, an overload protection device and a code changing device are driven to rotate firstly, then the linkage shafts coaxially return into the lock body and drive sawtooth wheels and a magnetic driving wheel to rotate synchronously, and follower wheels with notches rotate along with the linkage shafts. Due to the fact that the magnetic driving wheel does not make contact with the follower wheels and is driven only by the attraction force of a strong magnet, a cam pushes a locking plate to be inserted into the tooth grooves of the sawtooth wheels firstly in the unlocking process, the knob discs cannot rotate any more, then an inserting plate is inserted into the notches of the follower wheels, the cam continues to rotate to unlock the lock, and therefore the lock cannot be technically unlocked; when the lever handles or the knob discs are strongly twisted, the lever handles and the knob discs can idle; password changing and messy code operation are simple and easy to implement, and the magnetic drive type mechanical coded lock is particularly suitable for important occasions with low use frequency.

Description

technical field [0001] The invention relates to the field of turntable-marked mechanical coded locks, in particular to a magnetically driven mechanical coded lock. Background technique [0002] The turntable matching mechanical code lock has a wide range of applications. As a mechanical blocking mechanism, it is often used on file cabinets, vaults, safes, safes, and security doors. However, there have been a series of problems for a long time. First, the registration process takes too long 1. The operation is inconvenient; second, the password cannot be changed, which is very inconvenient for hiding and storing the password or remembering the password; third, the anti-theft opening performance cannot be opened technically, because the knob plate is in direct contact with the blocking mechanism inside the lock through the knob shaft. It is easy to crack by hearing, feeling and experience; fourth, the anti-destructive performance is not good enough, especially the combination ...

AI Technical Summary

Problems solved by technology

[0005] However, there are certain problems with the "hole-sealed mechanical combination lock", mainly because the registration operation process is relatively complicated: when registering, you need to press each knob first, and insert the convex edge of the knob shaft into the docking groove of the turntable shaft In order to complete the check number operation; after unlocking and locking, in order to prevent the password from being stolen, it is necessary to confuse the numbers corresponding to the sights on each knob plate, that is, the garbled code operation process also needs to be completed by pressing the knob plate first and inserting the convex edge into the docking groove. , causing some trouble to users

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