CN2318339Y - Cylinder lock capable of preventing open by any universal key - Google Patents
Cylinder lock capable of preventing open by any universal key Download PDFInfo
- Publication number
- CN2318339Y CN2318339Y CN 97210154 CN97210154U CN2318339Y CN 2318339 Y CN2318339 Y CN 2318339Y CN 97210154 CN97210154 CN 97210154 CN 97210154 U CN97210154 U CN 97210154U CN 2318339 Y CN2318339 Y CN 2318339Y
- Authority
- CN
- China
- Prior art keywords
- lock
- cylinder
- model
- utility
- lock core
- 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
Links
Landscapes
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The utility model discloses a cylinder lock which can prevent being unlocked by various master keys, which is composed of a lock body, a lock core, a lock core cylinder, a lock body cylinder, and a spring. The shapes of the lock core cylinder and the lock body cylinder are all like the Chinese character 'tu'. The utility model is provided with a step and a slot on the lock body cylinder and the lock core cylinder; the step and the slot have two anti-clamping functions for preventing the cylinders from being clamped on the step formed by the displacement when the lock is opened. The utility model has the advantages of safe and reliable operation, simple structure, easy fabrication, low cost, etc. Because of the small change on the structure of the existing cylinder lock, the utility model is suitable for being manufactured by the existing cylinder lock manufacturing line.
Description
The utility model relates to a kind of cylinder lock that prevents various unlocked by universal key.
At present, cylinder lock of the prior art, its structure all is by lock body usually, lock core, spring, and it is many to lock spring and lock core marble composition, the lock spring of these cylinder locks and lock core marble shape all are cylindrical shape, because when the pellet shot from a slingshot of this cylindrical shape is contained in the pellet shot from a slingshot hole of locking, exist certain clearance between pellet shot from a slingshot and the hole inevitably, various master keys utilize this gap exactly when unlocking spring lock, at first make lock core and lock body produce a dislocation, and then by so-called master key (as: monodentate shape or multiple tooth shape master key, rubber shape master key, Unlocking gun etc.) lock spring in the cylinder lock all is stuck on the step of dislocation back formation, thereby just lock can be opened.Thereby cylinder lock of the prior art is not safe and reliable.
The purpose of this utility model is: a kind of cylinder lock that can prevent various unlocked by universal key is provided.
The utility model is to constitute like this: it is made up of lock body (1), lock core (2), lock core marble (3), lock spring (4), spring (5), being shaped as of lock core marble (3) and lock spring (4)
With
Shape.
The utility model is compared with existing cylinder lock, owing to adopted technique scheme, though under the situation that applies rotary action power, can produce certain clearance between lock body and the lock core, but because the special construction of lock spring and lock core marble, promptly on lock spring and lock core marble, have a step (6) and groove (7), this step (6) and groove (7) have formed twice and have prevented that pellet shot from a slingshot is stuck in the anti-sticking effect on the step that forms after the dislocation, thereby various master keys all can not be opened lock, thereby the utlity model has advantage safe in utilization, reliable; In addition, the utility model also has advantages such as simple in structure, that making is easy, with low cost; Because the utility model is less to the structural change of original cylinder lock, thereby is suitable for existing cylinder lock production line and produces.
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment of the present utility model: lock body (1), lock core (2), spring (5) all adopt the structure and the part of cylinder lock in the prior art, and the shape of lock core marble (3) and lock spring (4) is made into
With
Shape, when making the finished product lock, can be as required, locking is made the cylinder lock of forms such as single, double, three rows of many group pellets shot from a slingshot or four rows.
Claims (1)
1, a kind of cylinder lock that prevents various unlocked by universal key, it is made up of lock body (1), lock core (2), lock core marble (3), lock spring (4), spring (5), it is characterized in that: being shaped as of lock core marble (3) and lock spring (4)
With
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97210154 CN2318339Y (en) | 1997-04-18 | 1997-04-18 | Cylinder lock capable of preventing open by any universal key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97210154 CN2318339Y (en) | 1997-04-18 | 1997-04-18 | Cylinder lock capable of preventing open by any universal key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2318339Y true CN2318339Y (en) | 1999-05-12 |
Family
ID=33929160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97210154 Expired - Fee Related CN2318339Y (en) | 1997-04-18 | 1997-04-18 | Cylinder lock capable of preventing open by any universal key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2318339Y (en) |
-
1997
- 1997-04-18 CN CN 97210154 patent/CN2318339Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |