CN2700479Y - Locking-unlocking device - Google Patents
Locking-unlocking device Download PDFInfo
- Publication number
- CN2700479Y CN2700479Y CN 200420046341 CN200420046341U CN2700479Y CN 2700479 Y CN2700479 Y CN 2700479Y CN 200420046341 CN200420046341 CN 200420046341 CN 200420046341 U CN200420046341 U CN 200420046341U CN 2700479 Y CN2700479 Y CN 2700479Y
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- CN
- China
- Prior art keywords
- lock core
- lock
- sections
- utility
- core
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- 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 locking-unlocking device, compising a key and a lock core arranged in the inside of the lock body. The lock core is axially divided into two sections, which respectively are an inner lock core and an outer lock core. The inner lock core and the outer lock core are connected in series orderly. The outside of the outer lock core is sheathed with an outer lock cover and the back part of the inner lock core is provided with a boss. Both the inner lock core and the outer lock core are provided with a marble and a spring. Aiming at the condition that the robber uses a hard material similar to a key shape to insert in to the front section part of the keyhole of the lock core, twist the lock core forcibly and open the lock when the robber forcibly opens the theftproof lock, in the utility model, the existing twist opened type lock core is axially divided into two sections or a plurality of sections and the sectional lock cores are provided with marbles and springs. Thereby, when one lock core close to the outer part is forcibly open, the rest lock cores are still closed. Thus the performance of theftproof is greatly improved. The utility model has the advantages of reasonable and simple structure, low manufacture cost, improved performance of theftproof, and safe and reliable usage.
Description
Technical field
The utility model relates to a kind of lock, particularly a kind of anti-lock locking device.
Background technology
All kinds of locks of present lockmaking manufacturer production, mostly for single-row billiard to be set at the lock core axial location, adopt sheet shape key to match with it, owing to be subjected to limiting on key and the lock core length, marble amount can not increase too much, and therefore this lock construction is fairly simple, the repetitive rate height of key, lock is also pushed aside easily, and its theftproof and reliability are all relatively poor.
The utility model content
The purpose of this utility model be to provide a kind of simple and reasonable, cost of manufacture is low, theftproof performance is high, and easy-operating anti-lock locking device is to overcome weak point of the prior art.
A kind of anti-lock locking device by this purpose design comprises key, is arranged on the lock core in the lock body, and its architectural feature is that lock core is divided into two sections or multistage setting vertically.
Above-mentioned lock core is divided into two sections, is respectively internal cylinder and outer lock core.Internal cylinder and outer lock core are connected in series successively.The outer lock core outside is socketed with outer locking closure.The internal cylinder rear portion is provided with boss.Be provided with pellet shot from a slingshot and spring in internal cylinder and the outer lock core.
What open theftproof lock by force at the robber is the leading portion part of inserting lock core keyhole with the hard material of similar key shape, reverse lock core by force, this situation with the lock unlatching, the utility model is with the existing open-type lock core that reverses, be divided into two sections or multistage in the axial direction, on the lock core of segmentation, all be provided with pellet shot from a slingshot and spring, when one section outer lock core is opened by force, remaining lock core is not opened yet, and theftproof performance improves greatly.
The utility model is simple and reasonable, cost of manufacture is low, theftproof performance is high, and is also more safe and reliable in the use.
Description of drawings
Fig. 1 is the utility model one embodiment sectional structure schematic diagram.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1, this anti-lock locking device comprises key 1 and is arranged on lock core in the lock body 5 that lock core segmentation vertically is provided with internal cylinder 7 and outer lock core 2, an end of outer lock core 2 and lock body 5 respectively with outer locking closure 3 sockets.Internal cylinder 7 rear portions are provided with and are used to stir the boss 8 that dead bolt rotates.Be provided with pellet shot from a slingshot 6 and spring 4 on internal cylinder 7 and the outer lock core 2.
The utility model is that the existing lock core that reverses the open-type lock is divided into two sections in the axial direction, when outer outer lock core 2 is opened by force, leans on the internal cylinder 7 of back not to be unlocked yet, and therefore lock can not be unlocked, to improve the theftproof performance of lock.
Claims (6)
1. an anti-lock locking device comprises key (1), is arranged on the lock core in the lock body (5), it is characterized in that described lock core is divided into two sections or multistage setting vertically.
2. anti-lock locking device according to claim 1 is characterized in that described lock core is divided into two sections, is respectively internal cylinder (7) and outer lock core (2).
3. anti-lock locking device according to claim 2 is characterized in that described internal cylinder and outer lock core are connected in series successively.
4. anti-lock locking device according to claim 3 is characterized in that described outer lock core outside is socketed with outer locking closure (3).
5. anti-lock locking device according to claim 3 is characterized in that described internal cylinder rear portion is provided with boss (8).
6. anti-lock locking device according to claim 2 is characterized in that being provided with in described internal cylinder and the outer lock core pellet shot from a slingshot (6) and spring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420046341 CN2700479Y (en) | 2004-05-24 | 2004-05-24 | Locking-unlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420046341 CN2700479Y (en) | 2004-05-24 | 2004-05-24 | Locking-unlocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2700479Y true CN2700479Y (en) | 2005-05-18 |
Family
ID=34775901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420046341 Expired - Fee Related CN2700479Y (en) | 2004-05-24 | 2004-05-24 | Locking-unlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2700479Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605261A (en) * | 2017-11-03 | 2018-01-19 | 许树义 | A kind of theftproof lock of multiple safety function |
-
2004
- 2004-05-24 CN CN 200420046341 patent/CN2700479Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605261A (en) * | 2017-11-03 | 2018-01-19 | 许树义 | A kind of theftproof lock of multiple safety function |
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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: 20050518 Termination date: 20100524 |