CN201314156Y - Anti-theft lock - Google Patents
Anti-theft lock Download PDFInfo
- Publication number
- CN201314156Y CN201314156Y CNU2008202282002U CN200820228200U CN201314156Y CN 201314156 Y CN201314156 Y CN 201314156Y CN U2008202282002 U CNU2008202282002 U CN U2008202282002U CN 200820228200 U CN200820228200 U CN 200820228200U CN 201314156 Y CN201314156 Y CN 201314156Y
- Authority
- CN
- China
- Prior art keywords
- lock
- dead bolt
- lock tongue
- head
- tongue
- 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 a door lock, in particular to an anti-theft lock, and solves the problem that a traditional door lock can not prevent from being unlocked by a card-shaped object. The anti-theft lock comprises a lock body on which a lock tongue is arranged and a lock head used for clamping and fixing the lock tongue, wherein, the lock tongue in the lock body takes the shape of a column; an auxiliary lock tongue used for clamping and fixing the lock tongue is arranged in the lock head; the head end of the auxiliary lock tongue extends out of the lock head; a reset spring which is fixed with the tail end of the auxiliary lock tongue is arranged in the lock head; the end surface of the head end of the auxiliary lock tongue is an inclined plane, and the inclined plane of the head end of the auxiliary lock tongue is installed back against the lock tongue in the lock body. The utility model has the advantages of reasonable design, simple structure, and can effectively prevent human from utilizing the card-shaped object to unlock through the improvement on the structure.
Description
Technical field
The utility model relates to door lock, is specially a kind of theftproof lock.
Background technology
Establish the lock body of dead bolt in conventional door lock comprises and be used to fix the tapered end of dead bolt, consider easily based on locking a door, its dead bolt head end end face is set to the inclined plane towards outdoors more; Yet this structure is brought a problem, promptly adopts the door lock of this structure very easily to be pried open by card bodies such as artificially using identity card, phonecard, thereby causes property stolen.
Summary of the invention
The utility model can't be taken precautions against the problem that card bodies is unblanked in order to solve conventional door lock, and a kind of theftproof lock is provided.
The utility model is to adopt following technical scheme to realize: theftproof lock, comprise the lock body that is provided with dead bolt, the tapered end that is used to fix dead bolt, dead bolt in the lock body is a columnar lock tongue, be provided with the secondary dead bolt that is used to fix dead bolt in the tapered end, the head end of secondary dead bolt stretches out tapered end, establish in the tapered end and back-moving spring that secondary dead bolt tail end is fixing, secondary dead bolt head end end face is the inclined plane, and the dead bolt setting of the inclined plane of secondary dead bolt head end in the lock body.
Operating principle is as follows: at closing time, the dead bolt that stretches out the lock body contacts with secondary dead bolt head end end face, because secondary dead bolt head end end face is the inclined plane, make secondary dead bolt under the dead bolt squeezing action, withdraw, after treating door closure, dead bolt is crossed secondary dead bolt fully, and secondary dead bolt ejects automatically again under the effect of back-moving spring and fixes dead bolt, thereby with on the door lock; When opening the door, key makes the withdrawal of dead bolt head end lock in the body, avoids the fixing of secondary dead bolt, door-lock opening; Because dead bolt is columnar lock tongue, thereby make card bodies outdoors can't stretch into tapered end and the gap of locking between the body, and prize dead bolt, so utilize this point, can prevent thoroughly that the someone from using card bodies to pry open door lock, to realize antitheft purpose.Structure in this theftproof lock lock body is consistent with existing door latch structure.
The utility model is reasonable in design, and is simple in structure, by a series of structural improvement, can effectively prevent from artificially to use card bodies to unblank.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: the 1-dead bolt, the secondary dead bolt of 2-, the 3-tapered end, 4-locks body, 5-back-moving spring.
The specific embodiment
Theftproof lock, comprise the lock body 4 that is provided with dead bolt 1, the tapered end 3 that is used to fix dead bolt 1, dead bolt 1 in the lock body 4 is a columnar lock tongue 1, be provided with the secondary dead bolt 2 that is used to fix dead bolt 1 in the tapered end 3, the head end of secondary dead bolt 2 stretches out tapered end 3, establish in the tapered end 3 and the fixing back-moving spring 5 of secondary dead bolt 2 tail ends, secondary dead bolt 2 head end end faces are the inclined plane, and the inclined plane of secondary dead bolt 2 head ends is provided with back to the dead bolt 1 in the lock body 4.During concrete enforcement, described tapered end 3 is established the entity of cylindrical interior volume in being, the tail end of secondary dead bolt 2 inserts in the cylindrical interior volume, and is provided with back-moving spring 5 between at the bottom of secondary dead bolt 2 tail ends and the cylindrical interior volume chamber.
Claims (2)
1, a kind of theftproof lock, comprise the lock body (4) that is provided with dead bolt (1), the tapered end (3) that is used to fix dead bolt (1), it is characterized in that: the dead bolt (1) in the lock body (4) is a columnar lock tongue (1), be provided with the secondary dead bolt (2) that is used to fix dead bolt (1) in the tapered end (3), the head end of secondary dead bolt (2) stretches out tapered end (3), establish in the tapered end (3) and the fixing back-moving spring (5) of secondary dead bolt (2) tail end, secondary dead bolt (2) head end end face is the inclined plane, and the inclined plane of secondary dead bolt (2) head end is provided with back to the dead bolt (1) in the lock body (4).
2, theftproof lock according to claim 1 is characterized in that: described tapered end (3) is established the entity of cylindrical interior volume in being, the tail end of secondary dead bolt (2) inserts in the cylindrical interior volume, and is provided with back-moving spring (5) between at the bottom of secondary dead bolt (2) tail end and the cylindrical interior volume chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202282002U CN201314156Y (en) | 2008-12-13 | 2008-12-13 | Anti-theft lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202282002U CN201314156Y (en) | 2008-12-13 | 2008-12-13 | Anti-theft lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201314156Y true CN201314156Y (en) | 2009-09-23 |
Family
ID=41125950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202282002U Expired - Fee Related CN201314156Y (en) | 2008-12-13 | 2008-12-13 | Anti-theft lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201314156Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138636A (en) * | 2018-09-30 | 2019-01-04 | 苏州浪潮智能软件有限公司 | A kind of electronic lock structure of automatic blocking |
-
2008
- 2008-12-13 CN CNU2008202282002U patent/CN201314156Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138636A (en) * | 2018-09-30 | 2019-01-04 | 苏州浪潮智能软件有限公司 | A kind of electronic lock structure of automatic blocking |
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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: 20090923 Termination date: 20100113 |