CN2767580Y - Inserting and prizing preventing pin tumbler lock - Google Patents
Inserting and prizing preventing pin tumbler lock Download PDFInfo
- Publication number
- CN2767580Y CN2767580Y CN 200420013244 CN200420013244U CN2767580Y CN 2767580 Y CN2767580 Y CN 2767580Y CN 200420013244 CN200420013244 CN 200420013244 CN 200420013244 U CN200420013244 U CN 200420013244U CN 2767580 Y CN2767580 Y CN 2767580Y
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Abstract
The utility model provides an insertion-proof and pick-proof cylinder door lock which relates to the design of locks. The utility model has the key point that a plane step is arranged on the upper part of the inclined plane of a lock bolt; when the lock bolt slide into a lock catch box, the plane step of the lock bolt is over against a door seam, so committing appliances such as an ID card, a thin steel piece, etc. inserted through the door seam can not touch the inclined plane of the lock bolt; thus the lock bolt can not be pushed aside, the design defect that a common single-bolt cylinder lock is easy to insert and prize is made up, and all advantages of the traditional lock are reserved. The shape and the installing size of the lock with the improved design can be accordant with those of the traditional lock, and the utility model pays attention to the traditional producing technique and the installing and using habits of people. The utility model is fit for all the locks using the inclined planes of lock bolts to lock automatically; besides, the utility model improves the safety performance of the lock and stops the possibility of being inserted and prized easily of the lock.
Description
One, technical field
The utility model relates to a kind of lockset, particularly inclined-plane list tongue class pin tumbler lock.
Two, background technology
Pin tumbler lock is on the market locked a door for convenience and has all been adopted the self-locking structure of inclined-plane dead bolt at present.This structure is easy to be utilized utensils such as identity card, stalloy to insert from crack between a door and its frame by the offender, utilizes the inclined-plane of dead bolt to pry open the door crime of entering the room.Thereby greatly reduce the safety of such lockset, make the people's safety of life and property be subjected to serious threat.Prize in order to prevent that door lock from being inserted, lockset production firm racks one's brains and has found out the defective that various technical measures remedy this ramp structure.Multi-bolt door lock and to increase anti-lock device be the most general solution wherein, but this method cost height, price is expensive and will use key back locking when using, very inconvenience.Often there is the user to forget to lock or do not want to take the trouble and do not lock and this device is performed practically no function.Another kind method is to increase similar means such as various barrier sheets to solve the problem of being inserted sled at the crack between a door and its frame place, and this method complex structure, reliability be low, trouble is installed, so seldom be employed in the batch process.Having yet and try every possible means to solve on dead bolt and keeper structure, often is not because unreasonable structure, take precautions against weak effect and be not used, though because manufacturability bad, can't produce in batches or can manufacture and abandon but manufacturing cost is too high.Therefore study and a kind ofly both met the conventional lock production technology, do not increase cost of production, can take into account again people lock custom, take precautions against effective low price pin tumbler lock, be pressing for of maintain social stability, reinforcement social security.
Three, summary of the invention
The purpose of this utility model is a kind of simple in structure, with low cost, inserting and prizing preventing pin tumbler lock that reliability is high and economical and practical of design.Increase substantially the safety of common spring door lock, stop the inserted sheet frequent generation of burglary case of unblanking.
Technical solutions of the utility model are as follows: a kind of inserting and prizing preventing list tongue cylinder lock, it is characterized in that all having designed a plane step on the dead bolt inclined-plane of cylinder lock, and the width of the corresponding dead bolt of keeper plane step is designed to stepped.Step below, dead bolt plane has kept traditional inclined-plane, makes still can to automatically lock by the effect of inclined-plane and keeper at closing time.In order to guarantee only to allow the inclined-plane to contact with keeper at closing time, protection plane step is not broken, and one section is designed to stepped by the width indentation of dead bolt plane step traditional keeper striking face.Being consistent before the dead bolt after the improvement design and the profile of keeper and installation dimension and the improvement is to take into account traditional production technology and people's the custom of installing and using.Make cylinder lock plane step of dead bolt when laying the key under the door face crack between a door and its frame by the design, rather than the inclined-plane is facing to crack between a door and its frame, what touch when inserted sheet enters crack between a door and its frame is the plane of dead bolt, rather than inclined-plane, be subjected to force direction vertical with the direction of motion of dead bolt, rather than axial thrust load is arranged as the inclined-plane, thereby door can't be opened, played the effect of inserting and prizing preventing.
Four, description of drawings
Accompanying drawing is the structural representation of an embodiment of the utility model
Fig. 1, employing a kind of pin tumbler lock lock body front view of the present invention
Fig. 2, employing a kind of pin tumbler lock keeper front view of the present invention
Fig. 3, employing a kind of pin tumbler lock lock body vertical view of the present invention
Fig. 4, employing a kind of pin tumbler lock keeper vertical view of the present invention
Five, the specific embodiment
A kind of inserting and prizing preventing pin tumbler lock is characterized in that dead bolt (2) in the cylinder lock (1) goes up design and have a plane step (4), keeper (6) to be designed to as shown in Figure 2 stepped.The internal construction of lockset and common spring door lock are identical.Inclined-plane (3) on dead bolt (2) at closing time at first contacts with the limit (5) on the keeper (6), dead bolt overcomes spring force and moves in lock housing under the effect on inclined-plane, until the limit (5) of crossing on the keeper (6), under the effect of spring force, dead bolt (2) is advanced in the keeper (6), finish the action of once laying the key under the door.Can avoid when the design of the step of keeper (6) has guaranteed locking on the dead bolt (2) plane step (4) and directly and the inclined-plane (3) on the dead bolt (2) contact.The common spring lock has adopted the present invention after the locking of closing the door, plane step (4) on the dead bolt (2) faces crack between a door and its frame, make that injecting the inserted sheet that comes by crack between a door and its frame can't contact with the inclined-plane (3) on the dead bolt (2), thereby prevented that effectively the force open the door case of burglary of inserted sheet from taking place, improve the safety of common spring lock greatly, stablized social security.
Adopt pin tumbler lock of the invention process to have following advantage: simple in structure, safe and reliable than existing dual fail-safe, three insurance pin tumbler lockes, can drop into batch process as long as the dead bolt of common spring door lock and keeper improved a little, dead bolt through transforming and its profile of keeper and installation dimension can be accomplished with the common spring door lock identical, therefore need not change any production technology, not increase manufacturing cost, but than safer, more reliable at a large amount of common spring door locks that use on the market at present.
Claims (3)
1, a kind of inserting and prizing preventing pin tumbler lock, design is gone up on the inclined-plane (3) that it is characterized in that dead bolt (2) a plane step (4), make that dead bolt (2) slips into keeper (6) after, described plane step (4) faces crack between a door and its frame, and has enough width that crack between a door and its frame is shut.
2, according to the described inserting and prizing preventing pin tumbler lock of claim 1, it is stepped to it is characterized in that keeper (6) is designed to, and makes dead bolt (2) and keeper (6) when contacting, and guarantees to avoid and the contacting of plane step (4).
3,, it is characterized in that the appearance and size of dead bolt (2) and keeper (6) and installation dimension and traditional pin tumbler lock can be consistent, to make things convenient for scheduling of production, to adapt to and install and use custom according to the described inserting and prizing preventing pin tumbler lock of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420013244 CN2767580Y (en) | 2004-12-28 | 2004-12-28 | Inserting and prizing preventing pin tumbler lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420013244 CN2767580Y (en) | 2004-12-28 | 2004-12-28 | Inserting and prizing preventing pin tumbler lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2767580Y true CN2767580Y (en) | 2006-03-29 |
Family
ID=36681442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420013244 Expired - Fee Related CN2767580Y (en) | 2004-12-28 | 2004-12-28 | Inserting and prizing preventing pin tumbler lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2767580Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434029A (en) * | 2011-12-01 | 2012-05-02 | 中山市金点原子制锁有限公司 | Anti-unlocking structure of house door latch bolt lock |
| CN103806760A (en) * | 2012-11-02 | 2014-05-21 | 唐学兵 | Simple spring latch anti-theft lock |
-
2004
- 2004-12-28 CN CN 200420013244 patent/CN2767580Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434029A (en) * | 2011-12-01 | 2012-05-02 | 中山市金点原子制锁有限公司 | Anti-unlocking structure of house door latch bolt lock |
| CN103806760A (en) * | 2012-11-02 | 2014-05-21 | 唐学兵 | Simple spring latch anti-theft lock |
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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 |