Changeable-password lock

Abstract

The invention discloses a changeable-password lock. The changeable-password lock comprises a lock cylinder and a lock key. A lock hole is formed in the middle of the lock cylinder in the axial direction, clamping slots are formed in the front end of the hole wall of the lock hole, and a lock end password slot is formed above the lock hole in the axial direction. The lock end password slot is internally provided with a plurality of lock end password blocks which are arranged in an aligned manner in the axial direction, each lock end password block is provided with a low-layer needle hole in theradial direction, each lower-layer needle hole is internally provided with a lower-layer ejector pin, and an upper-layer ejector pin is arranged above each lower-layer needle hole. The lock key comprises a main rod and a lock key connector, the lock key connector is connected to the rear end of the main rod, and clamping blocks are formed on the lock key connector corresponding to the clamping slots. The side face of the main rod is provided with a plurality of lock key end password slots in the axial direction, each lock key end password slot is internally provided with a plurality of lock key end password blocks which are arranged in an aligned manner in the axial direction, and a lock tooth is formed on each lock key end password block corresponding to the corresponding low-layer ejector pin. The changeable-password lock is simple in structure and convenient to use, the unlocking password can be changed infinitely, a single lock key can unlock a plurality of lock cylinders, and themanufacturing and use cost of the lock is lowered.

Description

technical field [0001] The invention relates to the technical field of mechanical locks, in particular to a mechanical lock that can change passwords. Background technique [0002] Most of the existing locks that can change passwords are electronic locks, such as common digital electronic locks, fingerprint identification combination locks, etc. Electronic lock passwords are stored in the device through codes or numbers. To change the password, you only need to erase the original password record. Yes, for mechanical locks, it is more complicated to change the code structure and operation. [0003] Existing mechanical locks that can change passwords usually realize the switching of lock cylinder passwords through rotatable combination combination disks or combination combination wheels. Specifically, the lock core is designed as a combination of multiple combination disks / wheels. A plurality of pinholes are distributed on the combination disc, and thimbles of different lengt...

AI Technical Summary

Problems solved by technology

[0006] 2) Since the number of cipher discs and the number of pinholes are limited, the number of ciphers that can be combined is also limited. In fact, because the cipher discs cannot be replaced after production and assembly, the number of ciphers is not scalable;

[0007] 3) After the existing mechanical lock with a changeable password is switched to a new password, the unlocking key also needs to be newly equipped, so that each password of a lock needs a corresponding key to open, obviously in terms of cost It does not have any advantages;

[0008] 4) When the key corresponding to a certain password is accidentally lost, the combination lock cannot switch the password at will, and the convenience of use is limited

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