PASSWORD-RETRIEVING APPARATUS FOR CODED LOCK

Password-retrieving-apparatus for coded lock, a movable adjusting rod is arranged in the lock body; a small spring is arranged between the adjusting rod and a lock cover; the adjusting rod is provided with a protruding point; an inner wheel is provided with an avoidance clamping slot and a limit; a lock cylinder is driven to rotate under the rotation of a spare key; the lock cylinder is engaged with a bump on a toggling disk for driving the inner wheel to rotate in a staggered manner; the lock body moves relatively under the action of a big spring; the adjusting rod moves inwards under the action of the small spring; and the toggling disk is rotated to drive the inner wheel to rotate; the protruding point on the adjusting rod and the limit in the inner wheel are clamped.

CROSS-REFERENCE TO RELATED APPLICATIONS

The application claims priority to Chinese patent application No. 202221172199.2, filed on May 13, 2022, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present invention relates to the technical field of coded locks, and in particular to a password-retrieving apparatus for a coded lock.

BACKGROUND

In an existing coded lock, sometimes the password is forgotten, the operation of trying to retrieve the password is complicated, and the lock cannot be unlocked for a while and only can be unlocked through professional unlocking, which wastes time, pays money and is not safe. How to retrieve the password without the help of professional unlocking personnel is a technical problem to be solved urgently.

SUMMARY

An objective of the present invention is to provide a password-retrieving apparatus for a coded lock, thereby solving the technical problem in the prior art.

According to the above objective, the basic technical solution of the present invention is: a password-retrieving apparatus or a code lock includes a lock body, where a combined body of an elastic wheel and an inner wheel is arranged outside the lock body, and is mounted between a lock shell and a lock cover through a big spring; the lock body is connected to a lock handle; a lock cylinder is arranged in the lock handle; a movable adjusting rod is arranged in the lock body; a small spring is arranged between the adjusting rod and a lock cover; the adjusting rod is provided with a protruding point; the inner wheel is provided with an avoidance clamping slot and a limit; the lock cylinder is driven to rotate under the rotation of a spare key; the lock cylinder is engaged with a bump on a toggling disk for driving the inner wheel to rotate in a staggered manner; the lock body moves relatively under the action of a big spring; the adjusting rod moves inwards under the action of the small spring; and the toggling disk is rotated to drive the inner wheel to rotate; as this time, an elastic wheel sleeved outside the inner wheel does not rotate; the protruding point on the adjusting rod and the limit in the inner wheel are clamped; and a password displayed on a password wheel outside the inner wheel is the retrieved password.

Further, the avoidance clamping slot is formed inside the elastic wheel; and the lock body is slidingly engaged with the avoidance clamping slot of a combined body of the inner elastic wheel and the inner wheel through the bump.

Further, a bump is arranged outside the inner wheel; the elastic wheel is provided with a clamping slot; and the inner wheel is nested with the clamping slot in the elastic wheel through the bump.

Further, a lock pin is arranged between the lock cylinder and the lock handle; and the lock cylinder and the lock handle are driven by the lock pin to rotate mutually.

Compared with the prior art, the advantages and the beneficial effects of the present invention are:

1. the product of the present invention can retrieve the password to solve the problem that it is easy to forget the password and prone to messy code in the password wheel;

2. the product of the present invention is simple to operate and can retrieve a correct password by inserting a spare key, rotating a lock cylinder and rotating the password wheel until rotation stops without any other requirements; and

3. the product of the present invention is simple in structure and low in cost, excessive parts and parts with the complicated processing process are not added, the whole assembling is simple, and no excessive cost is increased on the original basis.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Referring toFIG.1toFIG.4, which are schematic diagrams of principle structures of a password-retrieving apparatus for a coded lock of an embodiment product according to the present invention. The password-retrieving apparatus for a coded lock includes a lock body11, where a combined body of an elastic wheel4and an inner wheel5is arranged outside the lock body11, and is mounted between a lock shell9and a lock cover10through a big spring13; the lock body11is connected to a lock handle12; a lock cylinder1is arranged in the lock handle12; a movable adjusting rod3is arranged in the lock body11; a small spring8is arranged between the adjusting rod3and the lock cover10; the adjusting rod3is provided with a protruding point; the inner wheel5is provided with an avoidance clamping slot6and a limit7; the lock cylinder1is driven under the rotation of the inner wheel5to rotate; the lock cylinder1is engaged with a bump on a toggling disk2for driving the inner wheel5to rotate in a staggered manner; the lock body11moves relatively under the action of the big spring13; the adjusting rod3moves inwards under the action of the small spring8; the toggling disk2is rotated to drive the inner wheel5to rotate; at this time, the elastic wheel4sleeved outside the inner wheel5does not rotate; the protruding point on the adjusting rod3and the limit7in the inner wheel5are not clamped; a password displayed on a password wheel outside the inner wheel5is the retrieved password; an avoidance clamping slot6is formed inside the elastic wheel4; the lock body11is slidingly engaged with the avoidance clamping slot6of the combined body of the elastic wheel4and the inner wheel5through the bump; a bump is arranged outside the inner wheel5; the elastic wheel4is provided with a clamping slot; the inner wheel5is nested with the clamping slot in the elastic wheel4through the bump; a lock pin is arranged between the lock cylinder1and the lock handle12; and the lock cylinder and the lock handle are driven by the lock pin to rotate mutually.

A space is released by rotating the lock cylinder1, so that the adjusting rod3has a space to move inwards; the small spring8is arranged at the bottom of the adjusting rod3, so that the protrusion on the adjusting rod3is clamped into the inner wheel5; and during retrieval of the password and in a case that the password is correct, the protruding point on the adjusting rod3clamps the limit7of the inner wheel5, thereby causing the password wheel to be unable to rotate and retrieving a correct password.

The password-retrieving apparatus for a coded lock provided by the present invention is described above. In the description, the principle and implementation manner of the present invention are described by using the specific preferred embodiments. These embodiments are only used to help understand the principle and core idea of the present invention. It should be noted that for those of ordinary skill in the art, the implementation solutions in the above embodiments may be further combined or replaced without departing from the design idea of the present invention, and several improvements and modifications may be made to the present invention. These improvements and modifications also fall into the protection scope of the claims of the present invention.