A mechanical combination lock

Abstract

The invention relates to a device utilizing digital codes for replacing keys for locking and unlocking, and discloses a mechanical coded lock. Operation is simple, safe and reliable, and the mechanical coded lock can replace traditional door locks universally used by existing homes. The mechanical coded lock is composed of a lock body outer side panel, a lock body element bottom plate, a lock body element cover plate and a lock body inner side panel. The lock body outer side panel is provided with an unlocking and locking knob shaft, a code disc and a plurality of hollow and solid code adjusting knob shafts. According to the mechanical coded lock, during locking, the marker lines of the multiple hollow and solid code adjusting knob shafts are firstly aligned to unlocking code number positions arranged on the lock body outer side panel, then the unlocking and locking knob shaft is anticlockwise rotated by about 360 degrees, an upper latch, a middle latch and a lower latch all outwards stretch out of a lock body from the interior of the lock body, then the marker lines of the multiple hollow and solid code adjusting knob shafts and the arranged unlocking code number positions are adjusted to be disorderly so as to prevent unlocking codes from being leaked, the lock is complexly closed, and unlocking operation is opposite to locking operation.

Description

Technical field: [0001] The invention relates to a device which uses a digital code instead of a key for unlocking and closing the lock, and is simple in operation, safe and reliable. technical background: [0002] Door lock is an indispensable tool in people's life. It has been handed down from generation to generation for thousands of years. They are all tools to open door locks with different structures and different methods and different types of keys. Even in many countries now, Many different types of mechanical combination locks, electronic combination locks, fingerprint locks, etc. have been invented and manufactured in many fields. Because the mechanical combination lock is a combination structure, the operation is cumbersome, and if you are a little careless, the code adjustment knob will miss it. Once the set password number position is missed, you have to start all over again. Their code adjustment operation procedures must be operated according to the set direct...

AI Technical Summary

Problems solved by technology

[0003] Such as: "Shajinpai, Lagarda" in the United States, "Sinuoyoute" and other mechanical combination locks in China. These types of locks are currently mainly used for financial safes or other important warehouse doors. Their Although the security is high, the design structure is not designed for the environment of home use at all. Its unlocking and password operation can only be operated outside the door, but not inside the door;

[0004] Most of the unlocking operation process of electronic combination locks and fingerprint combination locks can only be operated outside the door, but cannot be operated inside the door. There are also shortcomings such as high failure rate and high price. Therefore, it is difficult to get the recognition and acceptance of ordinary people;

[0005] The locks that are commonly used in families now are locks that are opened with keys. The biggest disadvantage is that it increases people's burden and worry. Every adult carries no less than 3-10 keys, or even more, all day long. The most worrying thing is that the key is lost or lost at home;

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