CN201818128U - Anti-theft lock with variable-diameter springs - Google Patents
Anti-theft lock with variable-diameter springs Download PDFInfo
- Publication number
- CN201818128U CN201818128U CN2010205713820U CN201020571382U CN201818128U CN 201818128 U CN201818128 U CN 201818128U CN 2010205713820 U CN2010205713820 U CN 2010205713820U CN 201020571382 U CN201020571382 U CN 201020571382U CN 201818128 U CN201818128 U CN 201818128U
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- CN
- China
- Prior art keywords
- lock
- lock core
- theft
- spring
- springs
- 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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- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to an anti-theft lock with variable-diameter springs. The lock comprises a lock body and a lock core, wherein cavities for holding lock body springs are arranged in the lock body, cavities for holding lock core springs are arranged in the lock core, and one end of each lock core spring is positioned in a key hole and is made into a raised head which is larger in diameter than the cavity for holding a lock body spring. Since one end of each lock core spring is positioned in the key hole and made into the raised head, the lock core spring can be prevented from entering the cavity for holding the lock body spring, so that a master key becomes ineffective. Only by inserting the key corresponding to the anti-theft lock into the key hole, the lock core spring can be parallel with the lock core, and the lock core can be rotated, so that the anti-theft lock can be unlocked. The anti-theft lock is safe and reliable. Since the diameter of the springs is variable, the anti-theft lock can prevent unlocking tools other than the key corresponding to the anti-theft lock from entering an effective area, so that the unlocking tools lose the unlocking function.
Description
Technical field
The utility model relates to a kind of theftproof lock, the reducing anti-theft cylinder lock that particularly a kind of billiards diameter changes.
Background technology
Theftproof lock is the important tool of using in people's daily life; the protection property safety is played an important role; the lock that uses is to have only associated key lockset can be opened by the interaction realization of lock spring and lock core marble mostly now.Existing lock core marble is the identical cylinder of diameter, lock core marble can arbitrarily move in the lock core marble cavity, thereby there is the people to invent a kind of master key, as long as lock core marble is headed into the lock spring cavity fully, lock core just can rotate, lock is opened, and the invention of this key has caused great potential safety hazard to the user.
The utility model content
The purpose of this utility model is can not play the lockset of the effect of resisting at common lockset to master key, and a kind of theftproof lock of lock core marble vary in diameter is provided.
The technical solution of the utility model is: a kind of reducing anti-theft cylinder lock, comprise lock body, lock core, lock body inside is provided with the cavity that takes up lock spring, lock core inside is provided with the cavity that takes up lock core marble, and the end that described lock core marble is positioned at keyhole is set to the plush copper of diameter greater than the lock spring cavity.
Preferably: described plush copper is set to cylinder.
Preferably: described plush copper is set to cone.
Preferably: described plush copper is set to cone table.
The beneficial effects of the utility model are: the utility model lock core marble is positioned at keyhole one end and is set to plush copper, like this, lock core marble can not arbitrarily enter the lock spring cavity, master key has just lost effect, after having only this lock key to insert, lock core marble is just parallel with lock core, and lock core just can rotate, and opens lockset.Lockset is safe and reliable.The utility model utilizes the pellet shot from a slingshot reducing to stop that other unlocking tools beyond this lock key enter into the effective coverage, make it lose unlocking function.
Description of drawings
Fig. 1 is a sectional view of the present utility model
Fig. 2 is the sectional view of conventional lock core marble.
Fig. 3 is the sectional view of lock core marble of the present utility model
The specific embodiment
Below in conjunction with the description of drawings specific embodiment of the present utility model:
A kind of reducing anti-theft cylinder lock, comprise lock body 1, lock core 2, lock body 1 inside is provided with the cavity that takes up lock spring 3, and lock core 2 inside are provided with the cavity that takes up lock core marble 4, and the end that described lock core marble 4 is positioned at keyhole 5 is set to the plush copper 6 of diameter greater than the lock spring cavity.Described plush copper 6 is set to cylinder or cone or cone table.
Keyhole to the lock core top carries out shutoff.
Claims (4)
1. reducing anti-theft cylinder lock, comprise lock body, lock core, lock body inside is provided with the cavity that takes up lock spring, lock core inside is provided with the cavity that takes up lock core marble, it is characterized in that: the end that described lock core marble is positioned at keyhole is set to the plush copper of diameter greater than the lock spring cavity.
2. reducing anti-theft cylinder lock as claimed in claim 1 is characterized in that: described plush copper is set to cylinder.
3. reducing anti-theft cylinder lock as claimed in claim 1 is characterized in that: described plush copper is set to cone.
4. reducing anti-theft cylinder lock as claimed in claim 1 is characterized in that: described plush copper is set to cone table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205713820U CN201818128U (en) | 2010-10-22 | 2010-10-22 | Anti-theft lock with variable-diameter springs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205713820U CN201818128U (en) | 2010-10-22 | 2010-10-22 | Anti-theft lock with variable-diameter springs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818128U true CN201818128U (en) | 2011-05-04 |
Family
ID=43916092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205713820U Expired - Fee Related CN201818128U (en) | 2010-10-22 | 2010-10-22 | Anti-theft lock with variable-diameter springs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046801A (en) * | 2012-12-24 | 2013-04-17 | 潘传华 | Lock and key matched with same |
-
2010
- 2010-10-22 CN CN2010205713820U patent/CN201818128U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046801A (en) * | 2012-12-24 | 2013-04-17 | 潘传华 | Lock and key matched with same |
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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: 20110504 Termination date: 20121022 |