CN203755828U

CN203755828U - Lock cylinder of coded lock

Info

Publication number: CN203755828U
Application number: CN201420104854.XU
Authority: CN
Inventors: 卢柳均
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-10
Filing date: 2014-03-10
Publication date: 2014-08-06
Anticipated expiration: 2024-03-10

Abstract

The utility model belongs to the technical field of coded locks and particularly relates to a lock cylinder of the coded lock. The lock cylinder of the coded lock mainly solves the problem that inconvenience is brought to people due to the unreplaceable lock cylinder of the existing coded lock. The technical scheme includes that the lock cylinder of the coded lock comprises a spring bolt, wherein a cylindrical rod is arranged at the rear end of the spring bolt, three or more convex keys are arranged on the end of the cylindrical rod close to the spring bolt, a nut is arranged at the tail end of the cylindrical rod, a spring is arranged between the convex keys and the nut on the cylindrical rod, retainer rings are arranged on the convex keys, a coded ring is arranged between every two retainer rings, and scale rings are arranged on the coded rings. Gaps matched with the convex keys are formed in the inner sides of the retainer rings and the coded rings, the outer sides of the coded rings are in sawtooth shapes, teeth matched with the sawteeth on the outer sides of the coded rings are arranged on the inner sides of the scale rings, and scales are arranged on the outer sides of the scale rings. The lock cylinder of the coded lock has the advantages of being strong in security and convenient to use.

Description

A kind of cipher lock core

Technical field

The utility model belongs to coded lock technology field, is specifically related to a kind of cipher lock core.

Background technology

Safet puzzle lock is that lock body is vertically mounted on safety cabinet cabinet door, and secret dish is outer is exposed at cabinet outdoors, and this coded lock can not be changed password, once password is revealed, only has the coded lock of replacing to ensure safety, and it is very inconvenient to use.

Summary of the invention

The utility model can not change mainly for existing coded lock the inconvenience that lock core brings, and a kind of removable cipher lock core is provided.

The utility model is to address the above problem the technical scheme of taking to be:

A kind of cipher lock core, comprise dead bolt, wherein: the rear end of described dead bolt is cylindrical bar, one end near dead bolt on cylindrical bar is provided with at least three protruding keys, the tail end of cylindrical bar is provided with nut, between cylindrical bar epirelief key and nut, is provided with spring, on protruding key, back-up ring is housed, between two back-up rings, password circle is housed, on password circle, graduated ring is housed; The inner side of described back-up ring and password circle is all provided with the breach mating with protruding key, and the outside of password circle is zigzag, the inner side of described graduated ring have with password circle outside the tooth that matches of sawtooth, the outside of graduated ring is provided with scale.

The utility model adopts technique scheme, under locking states, in the breach of the protruding key of dead bolt in back-up ring, breach on password circle is in position at any angle, in the time unblanking, rotational password circle, make breach on password circle turn to back-up ring on the position of breach one straight line, dead bolt just can extend forward smoothly, actuating the office of unblanking completes and unblanks, due to the effect of back-up ring and the protruding key of dead bolt, the rotation of other password circles that can not link of certain password circle in rotation, namely other password circles remain static, while all turning to certain position etc. all cipher chips, just can carry out next step operation of having unblanked, directly stir password circle by graduated ring and complete checks cipher, the corresponding password numerical value of breach on password circle is exactly correct unlocking cipher, the utility model only need to unload graduated ring while changing password, and the tooth of then again putting back to other angles on password circle is interior just passable, in addition, the utility model cipher lock core, can have minimum two password circles, and even tens password circles forms, that is to say, the utility model cipher lock core can be made up of the cipher code set of four figures value to hundreds of millions numerical value, can produce the huge coded lock product of password value, has improved greatly the security performance of coded lock lockset.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of the utility model back-up ring;

Fig. 3 is the structural representation of the utility model password circle;

Fig. 4 is the structural representation of the utility model graduated ring.

Detailed description of the invention

Embodiment 1

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of cipher lock core, comprise dead bolt 1, wherein: the rear end of described dead bolt 1 is cylindrical bar 2, the one end near dead bolt 1 on cylindrical bar 2 is provided with at least three protruding keys 3, and the tail end of cylindrical bar 2 is provided with nut 4, between cylindrical bar 2 epirelief keys 3 and nut 4, be provided with spring 5, on protruding key 3, be equipped with between 6, two back-up rings 6 of back-up ring password circle 7 is housed, graduated ring 8 is housed on password circle 7; The inner side of described back-up ring 6 and password circle 7 is all provided with the breach 9 mating with protruding key 3, and the outside of password circle 7 is zigzag, and there is the tooth 10 matching with password circle 7 outside sawtooth the inner side of described graduated ring 8, and the outside of graduated ring 8 is provided with scale 11.

Claims

1. a cipher lock core, comprise dead bolt (1), it is characterized in that: the rear end of described dead bolt (1) is cylindrical bar (2), be provided with at least three protruding keys (3) in the upper one end near dead bolt (1) of cylindrical bar (2), the tail end of cylindrical bar (2) is provided with nut (4), between cylindrical bar (2) epirelief key (3) and nut (4), be provided with spring (5), back-up ring (6) is housed on protruding key (3), password circle (7) is housed between two back-up rings (6), graduated ring (8) is housed on password circle (7); The inner side of described back-up ring (6) and password circle (7) is all provided with the breach (9) mating with protruding key (3), the outside of password circle (7) is zigzag, there is the tooth (10) matching with password circle (7) outside sawtooth the inner side of described graduated ring (8), and the outside of graduated ring (8) is provided with scale (11).