Coded lock

Abstract

The invention belongs to the technical field of locks and discloses a coded lock. The coded lock comprises a lock cylinder, a driving part and a locking dog, wherein the lock cylinder comprises a center shaft, a code assembly, a shifting bar and a rotary knob, one end of the center shaft is the head part, the other end is the tail part, the direction from the head part to the tail part is a firstdirection, the center shaft is sleeved with the code assembly, the code assembly in a locking state prevents the center shaft from moving in the first direction, when the code assembly is in an unlocking state, the center shaft can move in the first direction, the shifting bar extends in a second direction, the second direction and the first direction form an angle, one end of the shifting bar isconnected to the driving part, and the shifting bar rotates to drive the locking dog to perform reciprocating motion through the driving part so as to complete locking and unlocking; and the rotary knob is connected to the other end of the shifting bar, the side wall of the rotary knob is propped against the head part, in the locking state, the head part prevents the rotary knob from rotating, andin the unlocking state, the rotary knob can rotate to drive the shifting bar to rotate. According to the coded lock, a power supply is not needed, and the cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of locks, in particular to a combination lock. Background technique [0002] Combination lock is a kind of lock. It uses a series of numbers or symbols to open it. It does not need a key in the traditional sense. There are intelligent and non-intelligent types of combination locks. Intelligent combination locks are electronically controlled. It can be automatically unlocked by swiping a card or entering a digital password; the non-intelligent combination lock does not need a power supply, and it needs to be unlocked through certain human operations after selecting the correct password. [0003] At present, most of the combination locks on the door are intelligent combination locks. The locks contain corresponding electronic products and need to be powered all the time. [0004] Therefore, need badly a kind of combination lock to solve the above-mentioned technical problem. Contents of the invention [00...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the combination locks on the door are intelligent combination locks. The locks contain corresponding electronic products and need to be powered all the time. Not only the use cost is high, but the production cost is also relatively high. If a power failure occurs, it will cause the situation that the lock cannot be unlocked.

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