CN2278057Y - Spring locking type prizing-resistant door lock - Google Patents
Spring locking type prizing-resistant door lock Download PDFInfo
- Publication number
- CN2278057Y CN2278057Y CN 96233504 CN96233504U CN2278057Y CN 2278057 Y CN2278057 Y CN 2278057Y CN 96233504 CN96233504 CN 96233504 CN 96233504 U CN96233504 U CN 96233504U CN 2278057 Y CN2278057 Y CN 2278057Y
- Authority
- CN
- China
- Prior art keywords
- lock
- dead bolt
- spring locking
- door lock
- butt
- 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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- Door And Window Frames Mounted To Openings (AREA)
Abstract
The utility model discloses a spring locking type prizing-resistant door lock. The lower part of a square lock bolt (2) on a lock body (1) is provided with a lock bolt chamfering angle (5) treated through an edge chamfering angle, and a spring locking slope (4) used for spring locking the square lock bolt (2) having the lock bolt chamfering angle (5) is arranged on a lock house (3). The utility model simultaneously has the anti-prize function and the advantage of automatic spring locking after the spring locking type prizing-resistant door lock receives external force.
Description
The utility model belongs to door lock, especially has the door lock of spring hitch to make the field.
The present door lock that spring hitch is arranged that generally uses, the form of its dead bolt (being locking bolt) mainly are divided into square and right-angled triangle (cross sectional shape on the flexible direction of dead bolt), also has cylinder shape lock tongue in addition.The door lock of square dead bolt or cylinder shape lock tongue has tamper-resistant function, and still, it is butt automatically, must use key, and the twisting dead bolt makes it withdrawal, just can reach the purpose of closing; The door lock of right-angled triangle dead bolt (being skew bolt lock) is subjected to after the external force butt automatically, still, it does not possess tamper-resistant function (as, with saw blade exerted pressure in the inclined-plane on the dead bolt, can make the dead bolt retraction and door is opened).
The purpose of this utility model is to overcome above-mentioned weak point and a kind of spring locking type pick-proof door lock is provided, and it has tamper-resistant function, is being subjected to have the advantage of butt automatically under the external force effect simultaneously.
The purpose of this utility model is realized by the following technical programs: a kind of spring locking type pick-proof door lock, mainly by lock body, place square dead bolt and lock room on the lock body to form; The bottom of this square dead bolt is provided with the dead bolt chamfering of handling through edge chamfering; This lock room is provided with the butt inclined-plane of the square dead bolt butt that is used to have the dead bolt chamfering.
After adopting technique scheme, on the one hand, this door lock is owing to square dead bolt has the pick-proof effect; On the other hand, in the butt process, reach the effect of automatic butt along the descending retraction in butt inclined-plane on the lock room owing to the dead bolt chamfering on the square dead bolt.Thereby it has the advantage of tamper-resistant function and automatic butt simultaneously concurrently.
Fig. 1 is the stereogram of an embodiment of the utility model;
Fig. 2 is the fragmentary cross-sectional view of the square dead bolt along the A-A line shown in Figure 1.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 illustrates the stereogram of an embodiment of the utility model of lock body 1 and lock room 3 compositions.When placing square dead bolt 2 on the lock body 1 to be subjected to external force in lock body 1 retraction; When external force is eliminated, be subjected to the spring reset tension force that is provided with in the lock body 1 and stretch out 1 outer promptly cooperation of lock body and play the effect that door is closed with lock room 3.The bottom seamed edge of square dead bolt 2 forms dead bolt chamfering 5 through chamfered, can be clear that the situation of the bottom seamed edge of square dead bolt 2 through chamfered in conjunction with Fig. 2.Square dead bolt 2 is meant along the section shape of the flexible direction of dead bolt and is rectangle.Lock room 3 is provided with butt inclined-plane 4, butt inclined-plane 4 is accepted or rejected in the obtuse angle scope with the angle of the positive facade (facade that lock room 3 and lock body 1 fit when being the door lock closure) in lock room 3, generally can be taken between 120 °～170 °, when being taken as between 130 °～140 °, (automatic butt readily pulled the butt better effects if when what is called was subjected to external force, square dead bolt 2 stretches into lock room 3 through butt, door has just been shut), be taken as 135 ° in the present embodiment.Material is that the lock room 3 and the butt inclined-plane 4 of cast iron can process in monoblock cast.6 locking actions that stop the dead bolt retraction of lock-button on the lock body 1, turn handle 7 can make square dead bolt 2 overcome spring tension and bounce back, thereby reaches the effect of opening door, and this all is the existing conventional annex setting that has the door lock of spring hitch.
For the door lock of cylinder shape lock tongue, chamfered is adopted in its dead bolt bottom, on the lock room butt inclined-plane is set and both realizes the pick-proof function of butt automatically also belonging to protection domain of the present utility model.
Claims (3)
1. spring locking type pick-proof door lock, mainly by lock body, place square dead bolt and lock room on the lock body to form, it is characterized in that the bottom of described square dead bolt (2) is provided with the dead bolt chamfering (5) through the edge chamfering processing; Described lock room (3) is provided with the butt inclined-plane (4) of square dead bolt (2) butt that is used to have dead bolt chamfering (5).
2. door lock according to claim 1 is characterized in that, described butt inclined-plane (4) is 120 °～170 ° with the angle of the positive facade in lock room (3).
3. door lock according to claim 1 is characterized in that, described butt inclined-plane (4) is 130 °～140 ° with the angle of the positive facade in lock room (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96233504 CN2278057Y (en) | 1996-08-01 | 1996-08-01 | Spring locking type prizing-resistant door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96233504 CN2278057Y (en) | 1996-08-01 | 1996-08-01 | Spring locking type prizing-resistant door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2278057Y true CN2278057Y (en) | 1998-04-08 |
Family
ID=33910164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96233504 Expired - Fee Related CN2278057Y (en) | 1996-08-01 | 1996-08-01 | Spring locking type prizing-resistant door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2278057Y (en) |
-
1996
- 1996-08-01 CN CN 96233504 patent/CN2278057Y/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 |