Dual-layer gear and key device of coded lock using gear

Abstract

The invention discloses a dual-layer gear and a key device of a coded lock using the gear, and belongs to the technical field of mechanical locks. Two themes are included; according to the first theme, the dual-layer gear is provided and is provided with a gear hole, a gear shoulder, a shoulder gap and a lower tooth space; the lower tooth space and the shoulder gap rotate along with rotation of the dual-layer gear; according to the second theme, a bottom plate, the dual-layer gear, a round groove rod, an ejecting piece, a baffle, a keel and a key buckle are included, the dual-layer gear is arranged on the round groove rod, the round groove rod penetrates a round hole in the baffle, the keel penetrates a square strip hole in the baffle, during motionless process, the keel is blocked by thegear shoulder, after correct passwords are pressed, the gear shoulder slides from the shoulder gap, and the keel moves downwards. The beneficial effects that no matter whether set passwords are repeated or not, as long as the correct passwords are pressed down, the keel can move downwards are achieved.

Description

technical field [0001] The invention relates to a double-layer gear and a key device of a combination lock using the gear, belonging to the technical field of mechanical locks. Background technique [0002] At present, the combination locks sold on the market belong to electronic combination locks, and the defect is that they cannot be opened when the battery is exhausted. The invention of this application belongs to a pioneering invention. A double-layer gear in this invention is used to make a mechanical coded lock. It is a part of the coded lock developed by myself. The coded lock made by this part can be unlocked as long as the code is entered correctly. , without batteries or storage batteries, it doesn’t matter if you forget to carry the key when you go out, as long as you remember the password, you can open the door. The present invention really fills the gap in the market. The applicant filed an application for an invention patent in January 2017 with the applicatio...

AI Technical Summary

Problems solved by technology

[0002] At present, the combination locks sold on the market are electronic combination locks, and the defect is that they cannot be opened when the battery is exhausted.

The applicant filed an application for an invention patent in January 2017 with the application number 201710063825.1 and the name "a mechanical password device and a combination lock using the device". The defect is that the number of passwords cannot be set repeatedly. The password is 955211 because "55" and "11" are repeated

In the above-mentioned patent application documents, in order for the mechanical lock to be able to reset the password, that is, the number of times the key is pressed repeatedly, the key buckle can allow the keel to move down, and the keel must not be blocked if it wants to move downward. It is also required that the keel cannot move down when the wrong key is pressed, that is, the wrong password, that is to say, when the password is not pressed or the wrong password is pressed or the password is incomplete, the keel must be blocked, and the key shoulder on each button The distance from the dragon shoulder on the keel is not equal. Therefore, it is quite difficult to make a mechanical combination lock that can be recoded. The above-mentioned patent application documents do not record the technical problem of resetting the password.

Again, after more than a year of research, I found that the mechanical combination lock that can repeatedly set the number of passwords often happens when the wrong password is pressed. After pressing the wrong key, it must be reset. Only the combination lock that can be reset can be used normally. work is also very difficult

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