Code zero-clearing mechanism of coded lock

Abstract

The invention discloses a code zero-clearing mechanism for a coded lock. The code zero-clearing mechanism for the coded lock comprises a zero-clearing wheel and a plurality of returning pieces. The zero-clearing wheel is rotatably arranged on a lock shell. A rotary shaft of the zero-clearing wheel is parallel to the central axis. A hollowed-out part allowing the outer side wall of a part of a zero-clearing knob to be exposed out of the outer side of the coded lock is arranged on the surface of the lock shell. A zero clearing mark which can be aligned with a standard mark on the outer surface of the lock shell is arranged on the zero-clearing wheel. The zero-clearing wheel is in synchronous transmission with at least one center shaft of the coded lock. The returning devices are arranged onthe center shafts in a fixed mode in the circumferential direction and are always in close contact with one end faces of inner wheels in a one-to-one correspondence mode. Spiral walls which can deformelastically in the axial direction are arranged on the returning pieces. Spiral grooves matched with the spiral walls are formed in one end faces of the inner wheels. The spiral walls can be right accommodated in the spiral grooves in a one-to-one correspondence mode, and the ends of the spiral walls can abut against stepped surfaces of the spiral grooves. By adoption of the code zero-clearing mechanism for the coded lock, a code wheel can automatically return to the initial state after the lock is unlocked, and thus using safety and convenience of the coded lock are improved.

Description

technical field [0001] The invention relates to a combination lock, in particular to a combination zero reset mechanism of the combination lock. Background technique [0002] At present, the combination lock is realized by the combination wheel set composed of the inner wheel and the outer wheel set on the outside of the central axis to block and avoid the lock to realize unlocking and locking. When the correct password is input, the gap on the combination wheel and The lock gate is facing directly, and the lock can be unlocked by driving the lock gate to slide through the switch. After the unlocking is completed, in order to prevent the password from being known by others, it is often necessary to manually turn each code wheel so that it is opposite to the wrong password, so as to realize the secrecy of the password. This operation mode consumes time, is very inconvenient, and is also easy to forget, which causes certain puzzlement to the use of combination locks. Content...

AI Technical Summary

Problems solved by technology

[0002] At present, the coded locks are all set on the outer side of the central shaft by the coded wheel set composed of the inner wheel and the outer wheel to realize the blocking and avoidance of the lock gate to realize unlocking and locking. When the correct code is input, the gap on the coded wheel and The lock gate is facing directly, and the lock can be unlocked by sliding the lock gat

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