CN2242941Y - Anti-prize safety door-lock - Google Patents
Anti-prize safety door-lock Download PDFInfo
- Publication number
- CN2242941Y CN2242941Y CN 95216743 CN95216743U CN2242941Y CN 2242941 Y CN2242941 Y CN 2242941Y CN 95216743 CN95216743 CN 95216743 CN 95216743 U CN95216743 U CN 95216743U CN 2242941 Y CN2242941 Y CN 2242941Y
- Authority
- CN
- China
- Prior art keywords
- lock
- tapered end
- prize
- safety door
- 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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- Gates (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Wing Frames And Configurations (AREA)
Abstract
The utility model discloses an anti-prize safety door-lock. The utility model is characterized in that a dentate groove is arranged on the bevel face of a triangular lock tongue, and the point on a lock head which is impacted with the lock tongue is provided with a rolling rod which is positioned by bolts. A lock body and the lock head are fixed tightly on a door leave and a doorframe respectively through sunk casing tube nuts and the bolts. In addition, the cover plate of the lock head can be made into a hinge type or a demountable type, and the end part of the lock body is also fixedly clamped with an oil-bearing pad through a pressure plate. The utility model has the advantages of simple structure, convenient manufacture and arrangement and strong anti-prize and anti-kick function, the lock tongue has flexible telescopic motion and the lock body and the lock head have firm arrangement, and the anti-prize safety door-lock is used for the reconstruction of the existing cylinder door-lock.
Description
The utility model relates to a kind of the lock with special construction, especially a kind of tamper-resistant safety door lock.
Pin tumbler lock commonly used now is to be made of lock body and tapered end, stretches in the tapered end the door locking by the dead bolt in the lock body.In order to make dead bolt be convenient to stretch, its lateral surface is a plane inclined, but because this clinoplain just in time is among the slit of door leaf and doorframe, very easily by the insertion of his human thin object body this door lock is pried open, thereby safety inadequately.Chinese patent CN2064805U discloses a kind of " anti-prying cylinder lock ", and its architectural feature is to change dead bolt into trapezoidal shape, and clinoplain is arranged on the mating face of lock body and tapered end.Because the straight flange of its dead bolt root is among the slit of door leaf and doorframe, thereby can play the effect of pick-proof.This anti-prying cylinder lock processing and manufacturing and install all conveniently inadequately, and limited because of the straight flange of its dead bolt root, still pick-proof very effectively more can not be prevented kicking.
The purpose of this utility model is exactly in order to overcome above-mentioned weak point of the prior art, provides a kind of simple in structure, and processing and manufacturing and installation facility, pick-proof and the anti-function of kicking are strong, dead bolt flexible flexible and lock body and the firm tamper-resistant safety door lock of tapered end installation.
The purpose of this utility model can reach by implementing following technical proposal: offer the dentation groove on the triangle dead bolt inclined-plane of pin tumbler lock commonly used, with the roll bar of dead bolt collision place setting by the bolt location, can have anti-skidding line on its surface on the tapered end.Lock body and tapered end are fastened on it on door leaf and the doorframe from the outside by countersunk head sleeve nut and bolt respectively.In order to obtain better result of use, the countersunk head sleeve nut and the bolt of fastening tapered end can be placed the tapered end center and the tapered end cover plate made radial type or detachable, be convenient to screw bolt; Can also be in the lock body end with pressing plate clamping one oil-containing pad, so that lubricated dead bolt makes it flexibly flexible.
Accompanying drawing is the structural representation of the utility model embodiment.
Below in conjunction with embodiment and accompanying drawing the utility model is described in detail: in the basic structure of conventional pin tumbler lock, on the inclined-plane of triangle dead bolt 1, evenly offer dentation groove 2, on the tapered end 3 with collision place of dead bolt 1 be provided with by bolt 4 location roll bar 5, correspondingly have anti-skidding line on its surface.Lock body 6 and tapered end 3 also are fastened on it on door leaf and the doorframe with bolt 9,10 from portion is inside outdoors by countersunk head sleeve nut 7,8 respectively, and wherein the countersunk head sleeve nut 8 of fastening tapered end and bolt 10 place the tapered end center.The end of lock body 6 is provided with the oil-containing pad 12 by pressing plate 11 clampings, is provided with on tapered end 3 by 13 cover plates 14 that connect that are hinged.When installing and use the utility model product, after installing by the common spring door lock earlier, more respectively with countersunk head sleeve nut 7,8 from outside pass door leaf or doorframe and lock body 6 and tapered end 3 is fastening with bolt 9,10, it is fused respectively.When closing door, roll bar 5 on the dentation groove 2 on dead bolt 1 inclined-plane and the tapered end 3 and contact, roll bar 5 and rotate with the retraction of dead bolt 1, the back dead bolt 1 that puts in place springs in the cavity of tapered end 3, and then the locking door.At this moment, can not lock be pried open with the thin type object owing to the barrier effect of dentation groove 2.Kicked out door by the also not easy-to-use pin of the fastening effect of countersunk head sleeve nut and bolt.When turning the key in the lock, dead bolt 1 retraction rolls bar 5 backward rotation, and door is opened.Oil-containing pad 11 can make dead bolt 1 capable of expansion and contraction, reduces wear.
The utility model has simple in structurely compared with prior art, and it is convenient to make and install, Pick-proof and the anti-function of kicking are strong, and the flexibly flexible and lock body of dead bolt and tapered end are installed the characteristics such as firm, and be outstanding It is fit to transform existing common spring door lock.
Claims (3)
1, a kind of tamper-resistant safety door lock, the lock body and the tapered end that comprise tongue with lock, it is characterized in that offering dentation groove (2) on triangle dead bolt (1) inclined-plane, tapered end (3) is gone up to be provided with by what bolt (4) was located with dead bolt (1) collision place and is rolled bar (5), and lock body (6) and tapered end (3) are fastened on it on door leaf and the doorframe from the outside by countersunk head sleeve nut (7), (8) and bolt (9), (10) respectively.
2, tamper-resistant safety door lock according to claim 1 is characterized in that countersunk head sleeve nut (8) and bolt (10) place tapered end (3) center and be provided with radial type or detachable cover plate (14) on tapered end (3).
3, tamper-resistant safety door lock according to claim 1 and 2 is characterized in that lock body (6) end is provided with the oil-containing pad (12) with pressing plate (11) clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95216743 CN2242941Y (en) | 1995-07-03 | 1995-07-03 | Anti-prize safety door-lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95216743 CN2242941Y (en) | 1995-07-03 | 1995-07-03 | Anti-prize safety door-lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2242941Y true CN2242941Y (en) | 1996-12-18 |
Family
ID=33865742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95216743 Expired - Fee Related CN2242941Y (en) | 1995-07-03 | 1995-07-03 | Anti-prize safety door-lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2242941Y (en) |
-
1995
- 1995-07-03 CN CN 95216743 patent/CN2242941Y/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 |
Granted publication date: 1996.12.18 |