Detachable mechanical combination lock

Abstract

A detachable mechanical combination lock, which relates to the field of turntable-type mechanical combination locks, in which the operation of checking numbers is completed by directly rotating six knobs; the cam mechanism is driven by the handle to rotate to realize unlocking and locking; After the linkage shaft movably connected with the shaft passes through the lock body, it first drives the overload protection device and the code changing device to rotate, and then returns to the lock body along the coaxial axis, and drives the saw gear and the thumb wheel to rotate, and finally makes the 6 follower wheels with gaps Follow the rotation. When unlocking, the cam first pushes the locking plate to insert into the tooth groove of the saw gear, and the knob plate can no longer rotate, and then the push-pull plate pushes the oblique long hole on the horizontal slide plate to make the follower wheel move laterally and separate from the thimble on the dial wheel Contact, finally make the flashboard insert in the gap of each follower wheel, the cam continues to rotate and unlock, so it is impossible to technically open the lockset. When the handle or the knob is twisted forcefully, both can rotate idly; password change operation and garbled code operation are simple and easy.

Description

technical field [0001] The invention relates to the field of turntable-marked mechanical coded locks, in particular to a detachable 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 lock inst...

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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