CN2339698Y - Anti-theft spring lock for door and window - Google Patents
Anti-theft spring lock for door and window Download PDFInfo
- Publication number
- CN2339698Y CN2339698Y CN 98210387 CN98210387U CN2339698Y CN 2339698 Y CN2339698 Y CN 2339698Y CN 98210387 CN98210387 CN 98210387 CN 98210387 U CN98210387 U CN 98210387U CN 2339698 Y CN2339698 Y CN 2339698Y
- Authority
- CN
- China
- Prior art keywords
- dead bolt
- door
- theft
- spring lock
- lock
- 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
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Landscapes
- Securing Of Glass Panes Or The Like (AREA)
- Wing Frames And Configurations (AREA)
Abstract
The utility model belongs to an anti-theft lock, particularly a spring lock. A prime lock bolt is properly extended, so that thin steel sheets or hard objects can not contact the slope part or arc-shaped surface part of the prime lock bolt, and therefore, the lock bolt can not shifted to achieve the anti-theft purpose.
Description
The utility model belongs to a kind of theftproof lock.
The door and window latch of generally selling at present and using is in installation or use, formed certain clearance between door-plate and the doorframe, since the dead bolt of latch be inclined-plane or arc surface outwardly, behind stalloy or other hard thing insertion gap, utilize dead bolt inclined-plane or arc surface to stir dead bolt, dead bolt is withdrawed from from snap close, thereby open behind the door, make property stolen.
Goal of the invention of the present utility model provides a kind of Theft-proof spring lock that can prevent that latch from being pried open.
Realize anti-theft feature for preventing that latch from being pried open, the utility model provides a kind of new Theft-proof spring lock, promptly on the basis that does not change former latch structure, on the basis of former inclined-plane or garden cambered surface dead bolt, the distance of one section dead bolt of parallel again increase, after door knob is closed, inclined-plane or garden cambered surface dead bolt all enter a segment distance in the locked body, make stalloy or other hard thing after inserting crack between a door and its frame, can't touch on the inclined-plane or garden cambered surface of dead bolt, dial motionless dead bolt, thereby reach antitheft function.
Specific embodiments of the present utility model is:
Fig. 1 is a floor map of the present utility model
Fig. 2 is a structural representation of the present utility model
Wherein 1 is that lock body 2 is door-plate for dead bolt 4 for doorframe 5 for snap close 3
Technical characterictic of the present utility model is exactly on the basis of original dead bolt, one distance, d of parallel its square body of prolongation (generally can be 3-5mm), make the front end inclined-plane or the garden cambered surface of dead bolt 3 enter a distance, d in the snap close 2 fully, also corresponding prolongation one distance, d of the degree of depth in the snap close 2, after stalloy or other hard thing put in from crack between a door and its frame, can't touch the inclined-plane or the garden cambered surface of dead bolt 3, thereby also just can't stir dead bolt 3, thereby reach antitheft function.
The utility model reasonable idea, practical reliable.
Claims (2)
1, a kind of Theft-proof spring lock, by lock body 1, snap close 2, dead bolt 3 compositions such as grade is characterized in that: the square body partial parallel of dead bolt 3 is prolonged a distance, d, make the front end inclined-plane of dead bolt 3 or garden cambered surface reach a distance, d in the snap close 2 equally.Also corresponding prolongation one distance, d of the degree of depth in the snap close 2,
2, Theft-proof spring lock according to claim 1 is characterized in that can be 3-5mm apart from d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98210387 CN2339698Y (en) | 1998-01-25 | 1998-01-25 | Anti-theft spring lock for door and window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98210387 CN2339698Y (en) | 1998-01-25 | 1998-01-25 | Anti-theft spring lock for door and window |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2339698Y true CN2339698Y (en) | 1999-09-22 |
Family
ID=33965438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98210387 Expired - Fee Related CN2339698Y (en) | 1998-01-25 | 1998-01-25 | Anti-theft spring lock for door and window |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2339698Y (en) |
-
1998
- 1998-01-25 CN CN 98210387 patent/CN2339698Y/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 |