Locking type mechanical coded lock

Abstract

The invention discloses a locking type mechanical coded lock, and relates to the field of rotatory knob code matching type mechanical coded locks. Code matching operation is completed by directly rotating five rotatory knob plates, and a handle drives a cam mechanism to rotate to realize unlocking and locking; during code matching, after linkage shafts movably connected with 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 sequentially drive driving gears, center gears and follow-up gears to rotate synchronously, and finally drive five rotating plates with notches to rotate to correct positions; during unlocking, a cam firstly pushes a locking plate to be inserted into tooth grooves of the center gears, the rotatory knob plates cannot rotate any more, then the inserting plate is pushed to be inserted into the notches of the rotating plates, the cam continues to rotate for unlocking, and the purpose that the lock cannot be unlocked by skills is achieved; and when the handle or the rotary knob plates are strongly rotated, the handle and the rotary knob plates can idle. The code changing operation and the code confusing operation are simple and easy to implement, and the locking 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 combination locks, in particular to a locking type mechanical combination 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 combina...

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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