CN2296390Y - Anti-theft spring bolt - Google Patents
Anti-theft spring bolt Download PDFInfo
- Publication number
- CN2296390Y CN2296390Y CN 97212955 CN97212955U CN2296390Y CN 2296390 Y CN2296390 Y CN 2296390Y CN 97212955 CN97212955 CN 97212955 CN 97212955 U CN97212955 U CN 97212955U CN 2296390 Y CN2296390 Y CN 2296390Y
- Authority
- CN
- China
- Prior art keywords
- lock
- dead bolt
- lock bolt
- theft
- bolt
- 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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- Wing Frames And Configurations (AREA)
Abstract
The utility model relates to an anti-theft lock bolt. An anti-shifting slot (4) is arranged on an inclined plane (3) on the existing dolabriform lock bolt (2) in the direction perpendicular to the move direction of the lock bolt. When a thin foreign body is inserted into the inclined plane of the lock bolt through a door gap, the foreign body is easy to slide into the anti-shifting slot to greatly enhance the anti-theft performance of a lock. The lock bolt has the advantages of simple structure, high safety and greatly reduced requirement to installation accuracy of the lock and the precision of a door frame, and is suitable for various cylinder locks.
Description
The utility model relates to a kind of dead bolt, relates in particular to a kind of cylinder lock theft-proof bolt.
Dead bolt (lock bolt) is the element of lock, and lock is lock body and dead bolt casket are coupled together and to bring into play antitheft effect by dead bolt.At present, dead bolt has various ways such as square, circular, axe shape.Square, circular dead bolt is anti-pushes better function aside, but the start or stop trouble.Common axe shape dead bolt is easy to use, lock once being with gently.But it has blemish in an otherwise perfect thing, and promptly it is as if not adding the lock core insurance or being locked, then very likely pushed aside by the thin type foreign matter.Though the axe shape dead bolt that has is provided with the anti-face of dialling, its width is restricted, if the wide start or stop trouble that will cause is narrow then inoperative just as square tongue.And the installation accuracy requirement to doorframe precision, lock is higher.
The purpose of this utility model provides a kind of theft-proof bolt, and its not only anti-group performance is good, simple in structure, and not high to the installation accuracy requirement of doorframe precision, lock.
The purpose of this utility model is achieved in that the vertical dead bolt direction of motion is provided with one or several anti-allocating slot on the dead bolt inclined-plane of axe shape.Stir dead bolt when the thin type foreign matter inserts by crack between a door and its frame, the thin type foreign matter very easily slides in the anti-allocating slot, and dead bolt must not move, and lock is not just opened yet.
Owing to adopt such scheme, can strengthen the anti-theft feature of lock greatly, and the installation degree of accuracy, the doorframe precision requirement of lock greatly reduced.Only on the inclined-plane of dead bolt, offer anti-allocating slot, simple in structure, easy to implement.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model D structure partial schematic diagram.Different locks, the structure of its dead bolt in lock body inside generally is different, but its outer shape is all identical substantially.So accompanying drawing has only been got part lock body and dead bolt.
In Fig. 1, axe shape dead bolt (2) has inclined-plane (3), the anti-face (5) of dialling, and (3) are gone up the vertical dead bolt direction of motion anti-allocating slot (4) is set on the inclined-plane.The spacing of anti-allocating slot (4) and lock body (1) should be between 3 to 7 millimeters, and a race is too small, and high by truing up true requirement to what lock, spacing is excessive, and lock also might be pushed aside, and the firmness of dead bolt is had certain influence.The width of anti-allocating slot (4) should be between 1 to 2 millimeter, and width is too small, might slip over anti-allocating slot when dialling dead bolt with the thin type foreign matter, do not prevent allocating for usefulness and have, and width is excessive, and the dead bolt wearing and tearing increase the weight of, and start or stop is not smooth.The degree of depth of anti-allocating slot (4) should be between 1 to 3 millimeter, and the degree of depth is shallow excessively, may prevent along with the dead bolt long term wear dialling losing efficacy, and the degree of depth diminishes the firmness of dead bolt excessively deeply.
Claims (2)
1, a kind of theft-proof bolt, it is an axe shape, and inclined-plane (3) is arranged, the anti-face (5) of dialling is characterized in that: (3) vertical dead bolt direction of motion is provided with anti-allocating slot (4) on the inclined-plane.
2, theft-proof bolt according to claim 1 is characterized in that: described anti-allocating slot (4), and wide 1 to 2 millimeter, dark 1 to 3 millimeter, with 3 to 7 millimeters of lock body (1) spacings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97212955 CN2296390Y (en) | 1997-03-29 | 1997-03-29 | Anti-theft spring bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97212955 CN2296390Y (en) | 1997-03-29 | 1997-03-29 | Anti-theft spring bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2296390Y true CN2296390Y (en) | 1998-11-04 |
Family
ID=33930898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97212955 Expired - Fee Related CN2296390Y (en) | 1997-03-29 | 1997-03-29 | Anti-theft spring bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2296390Y (en) |
-
1997
- 1997-03-29 CN CN 97212955 patent/CN2296390Y/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 |