CN202578171U - Double insurance lock cylinder with keys having bends - Google Patents
Double insurance lock cylinder with keys having bends Download PDFInfo
- Publication number
- CN202578171U CN202578171U CN 201220120490 CN201220120490U CN202578171U CN 202578171 U CN202578171 U CN 202578171U CN 201220120490 CN201220120490 CN 201220120490 CN 201220120490 U CN201220120490 U CN 201220120490U CN 202578171 U CN202578171 U CN 202578171U
- Authority
- CN
- China
- Prior art keywords
- lockhole
- lock core
- groove
- push rod
- return spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a double insurance lock cylinder with keys having bends. The lock cylinder comprises a lock hole and a limit clamp groove. A groove is reserved on a lock shell on one side of the lock hole. At least one push rod connected with a returning spring is disposed on the inner wall, which corresponds to the groove, of the lock shell. Two round holes provided with returning springs are reserved on an outer shell on the corresponding side of the groove. An ejector pin is disposed in the lock hole. The double insurance lock cylinder with keys having bends has the advantages that difficulties in breaking the lock cylinder or duplicating the keys are increased, and safety in use is improved.
Description
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 dual fail-safe lock core of key band turning formula is provided.
For achieving the above object, the utility model provides a kind of dual fail-safe lock core of key band turning formula, 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 forming convexity at lockhole, the opposite side of said lock core shell is provided with at least one code hole that is used to install the password pearl, also is provided with a step in the said code hole; Said step is used to prevent that password from falling into lockhole, and lockhole is stopped up.
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, simultaneously; The password pearl jack-up that the password groove of key opposite side will be installed the lock core shell opposite side is concordant with 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; Bossing is used to stop the axially-movable and the radial motion of lock core, and simultaneously, the password pearl partly falls into code hole; Password pearl in the corresponding lock tube partly falls into the code hole of lock core, and door lock is tight.
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 dual fail-safe lock core of key band turning formula 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 protruding in lockhole 6 formation, the opposite side of said lock core shell 1 is provided with at least one code hole 11 that is used to install the password pearl, also is provided with a step in the said code hole 11; Said step is used to prevent that password from falling into lockhole 6, and lockhole 6 is stopped up.
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 it is concordant with lock core shell 1; Simultaneously, the password pearl jack-up that the password groove of key opposite side will be installed the lock core shell opposite side is concordant with shell, and 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; Bossing is used to stop the axially-movable and the radial motion of lock core, and simultaneously, the password pearl partly falls into code hole; Password pearl in the corresponding lock tube partly falls into the code hole of lock core, and door lock is tight.
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)
1. the dual fail-safe lock core of a key band turning formula 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); The opposite side of said lock core shell (1) is provided with at least one code hole that is used to install the password pearl (11); Said code hole also is provided with a step in (11), and said step is used to prevent that password from falling into lockhole (6), and lockhole (6) is stopped up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220120490 CN202578171U (en) | 2012-03-23 | 2012-03-23 | Double insurance lock cylinder with keys having bends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220120490 CN202578171U (en) | 2012-03-23 | 2012-03-23 | Double insurance lock cylinder with keys having bends |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202578171U true CN202578171U (en) | 2012-12-05 |
Family
ID=47247595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220120490 Expired - Fee Related CN202578171U (en) | 2012-03-23 | 2012-03-23 | Double insurance lock cylinder with keys having bends |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202578171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610934A (en) * | 2018-11-16 | 2019-04-12 | 珠海华伟电气科技股份有限公司 | A kind of lockset of graduated encoding |
-
2012
- 2012-03-23 CN CN 201220120490 patent/CN202578171U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610934A (en) * | 2018-11-16 | 2019-04-12 | 珠海华伟电气科技股份有限公司 | A kind of lockset of graduated encoding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20130323 |