CN202578146U

CN202578146U - Key with turning type lock cylinder

Info

Publication number: CN202578146U
Application number: CN 201220120512
Authority: CN
Inventors: 刘启超; 石智中
Original assignee: SUQIAN ZHIZHONG METAL TECHNOLOGY CO LTD
Current assignee: SUQIAN ZHIZHONG METAL TECHNOLOGY CO LTD
Priority date: 2012-03-23
Filing date: 2012-03-23
Publication date: 2012-12-05
Anticipated expiration: 2022-03-23

Abstract

The utility model discloses a key with a turning type lock cylinder. The key comprises a lock hole and a limiting clamp slot; a groove is arranged on a lock shell at one side of the lock hole; the inner wall, corresponding to the groove, of the lock shell is provided with at least a push rod which is connected with a reset spring; an outer shell, at the corresponding side of the groove, is further provided with two circular holes with reset springs; and meanwhile, the lock hole is provided with a thimble. The key disclosed by the utility model has the remarkable effects of increasing the difficulty of cracking the lock cylinder or copying the key, and improving the safety for use.

Description

A kind of key band turning formula lock core

Technical field

The utility model belongs to a kind of lock core, particularly is a kind of lock core of key band turning formula.

Technical background

Key and lock core are used very extensive in daily life, and its kind is also a lot.The normally used key of people all is to rise and fall with spacing, height between the tooth and realize the pairing to different lock cores through changing on the key key bit shape and tooth; But in a single day this key is lost or is stolen by other people; Just duplicated by the people easily; Cause article lost in the family, safety is lower.

The utility model content

The purpose of the utility model is to overcome the prior art deficiency, and a kind of key band turning formula lock core is provided.

For achieving the above object, the utility model provides a kind of key band turning formula lock core, comprises lock core shell; The side of said lock core shell is provided with lockhole; Simultaneously, an end of lock core shell is provided with the spacing draw-in groove that is used for fixing lock core, wherein; Said lockhole is used to insert key, and spacing draw-in groove is used for lock core is fixed on lock tube.

In addition, the outer wall of lockhole one side is provided with the groove of a connection lockhole in the said lock core shell, and the inwall that said groove is corresponding is provided with at least one push rod; Said push rod is provided with backing pin, and simultaneously, an end of push rod is provided with first return spring; Also be provided with two circular holes that are not communicated with lockhole on the outer wall of said groove respective side, be used to install second return spring and the 3rd return spring, be provided with a T-shape push rod in the outer corresponding groove of said push rod, second return spring and the 3rd return spring; In addition; Said lockhole also is provided with thimble, and said thimble is inserted in the lockhole through the circular hole of lockhole opposite side, and forms convexity at lockhole.

When key was inserted lockhole, the key bit of key front end bent under the effect of thimble, and the key of bending part promotes push rod generation axis and moves; At this moment; The backing pin effect of T-shape push rod on push rod falls into groove, and concordant with lock core shell, and door is opened; When extracting key, the T-shape push rod is at the effect lower convexity of push rod at first return spring, second return spring, the 3rd return spring, and bossing is used to stop the axially-movable and the radial motion of lock core, and at this moment, door is locked.

The remarkable result of the utility model is: increased the difficulty that lock core is cracked or key is replicated, improved the safety of using.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the lateral view of the utility model;

Fig. 3 is the rear elevation of the utility model.

In the accompanying drawing, 1 is the key housing, and 2 is thimble, and 3 is groove, and 4 is push rod, and 5 is draw-in groove, and 6 is lockhole, and 7 is first return spring, and 8 is second return spring, and 9 is the 3rd return spring, and 10 is backing pin.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is further described.

Like Fig. 1,2, shown in 3; A kind of key band turning formula lock core comprises lock core shell 1, and the side of said lock core shell 1 is provided with lockhole 6; Simultaneously; One end of lock core shell 1 is provided with the spacing draw-in groove 5 that is used for fixing lock core, and said lockhole 6 is used to insert key, and spacing draw-in groove 5 is used for lock core is fixed on lock tube.

The outer wall of lockhole 6 one sides is provided with the groove 3 of a connection lockhole 6 in the said lock core shell 1, and said groove 3 corresponding inwalls are provided with at least one push rod 4, and said push rod 4 is provided with backing pin 10; Simultaneously, an end of push rod 4 is provided with first return spring 7, also is provided with two circular holes that are not communicated with lockhole 6 on the outer wall of said groove 3 respective side; Be used to install second return spring 8 and the 3rd return spring 9; Be provided with a T-shape push rod in said push rod 4, second return spring 8 and the 3rd return spring 9 outer corresponding groove, in addition, said lockhole 6 also is provided with thimble 2; Said thimble 2 is inserted in the lockhole 6 through the circular hole of lockhole 6 opposite sides, and forms protruding at lockhole 6.

During use, key is inserted in the lockhole 6, the key bit of key front end bends under the effect of thimble 2; The key of bending part promotes push rod 4 axis and moves, and at this moment, backing pin 10 effects of T-shape push rod on push rod fall into groove 3; And concordant with lock core shell 1, door is opened; When extracting key, the T-shape push rod is at the effect lower convexity of first return spring 7, second return spring 8, the 3rd return spring 9, and bossing is used to stop the axially-movable and the radial motion of lock core, and at this moment, door is locked.

Certainly; The utility model also can have other various embodiments; Under the situation that does not deviate from the utility model spirit and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.

Claims

1. a key band turning formula lock core comprises lock core shell (1), and the side of said lock core shell (1) is provided with lockhole (6); Simultaneously, an end of lock core shell (1) is provided with the spacing draw-in groove (5) that is used for fixing lock core, it is characterized in that: the outer wall of lockhole (6) one sides is provided with the groove (3) of a connection lockhole (6) in the said lock core shell (1); The inwall that said groove (3) is corresponding is provided with at least one push rod (4), and said push rod (4) is provided with backing pin (10), simultaneously; One end of push rod (4) is provided with first return spring (7); Also be provided with two circular holes that are not communicated with lockhole (6) on the outer wall of said groove (3) respective side, be used to install second return spring (8) and the 3rd return spring (9), be provided with a T-shape push rod in said push rod (4), second return spring (8) and the outer corresponding groove of the 3rd return spring (9); In addition; Said lockhole (6) also is provided with thimble (2), and said thimble (2) is inserted in the lockhole (6) through the circular hole of lockhole (6) opposite side, and forms protruding at lockhole (6).