CN2388298Y - Anti-picking door lock - Google Patents
Anti-picking door lock Download PDFInfo
- Publication number
- CN2388298Y CN2388298Y CN 98245388 CN98245388U CN2388298Y CN 2388298 Y CN2388298 Y CN 2388298Y CN 98245388 CN98245388 CN 98245388 CN 98245388 U CN98245388 U CN 98245388U CN 2388298 Y CN2388298 Y CN 2388298Y
- Authority
- CN
- China
- Prior art keywords
- lock
- door lock
- dead bolt
- pick
- groove
- 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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- Lock And Its Accessories (AREA)
Abstract
The utility model relates to an anti-prizing door lock, which comprises a lock tongue, a lock casing and a draw rod. The utility model is characterized in that one surface of the lock tongue is provided with a concave groove; a movable bolt in the concave groove is provided with a tongue hook; a lock chamber is provided with a lock-fixing mechanism and a lock starter which starts up the lock-fixing mechanism. The utility model has the advantage of good anti-prizing function.
Description
The utility model relates to a kind of door lock, relates in particular to a kind of door lock with tamper-resistant function.
At present, the pick-proof door lock that family generally uses adopts major-minor dead bolt structure, and the major-minor dead bolt all can insert in the lock tube.Though this door lock can be avoided resembling the common cattle head lock easy being inserted by hard sheet and open, when with instrument from doorframe and between the slit when prizing, the major-minor dead bolt all can leave lock tube, causes to be pried open, and loses tamper-resistant function.
The purpose of this utility model just provides the good door lock of a kind of tamper-resistant function.
The utility model comprises dead bolt, lock housing, pull bar.The one side of dead bolt is provided with a groove, and movable bolt a tongue hook in the groove, is provided with solid latch mechanism and the device that undoes the lock that starts this solid latch mechanism in the lock chamber.
Described solid latch mechanism comprises the jack on latch and the pull bar, and the hoodle that latch is provided with two pit band springs inserts the pit the inside.
As further improvement of the utility model, at the another side of dead bolt, also be provided with two grooves, movable bolt a tongue hook in every groove.
Further improve again as of the present utility model, in the lock chamber, also be provided with safeties, these safeties comprise rotatable circular flat parts and connected dop and projection, the edge of these Plane of rotation parts is provided with two recesses, the hoodle of band spring inserts this recess, is used for fixing the Plane of rotation parts.The startup of these circular flat parts also can be by being located at the device startup that undoes the lock that is used for starting solid latch mechanism in the lock chamber.
Owing to be provided with the tongue hook above the dead bolt, therefore when it inserted lock tube, the both sides gib head on the tongue hook was stuck in lock tube and the lock chamber, can't separate lock tube and lock chamber with prizing the merit tool, add in the lock chamber and be provided with solid latch mechanism and safeties, the more difficult startup dead bolt of stranger is unblanked.Therefore the utility model tamper-resistant function is good.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1, sectional drawing of the present utility model
Fig. 2, Figure 1A-A is to sectional drawing
The utility model comprises dead bolt 1, lock housing 2, pull bar 3, dead bolt is a plane structure, the centre of its one side is provided with a groove, movable bolt has tongue hook 4 in the groove, the another side of dead bolt 1 also is provided with two grooves, and these two grooves are distributed in the both sides of opposite intermediate groove, and movable bolt has tongue hook 5 in every groove, in the lock chamber of lock housing 2 the insides, be provided with solid latch mechanism.Should comprise latch 6 by solid latch mechanism, one side of latch 6 is provided with hoodle 8 insertion pits 7 the insides that two pits 7, have spring, is used to support latch 6, be provided with a jack 9 that matches and use with latch 6 in pull bar 3 and latch 6 relative one sides, the external surface of latch 6 is provided with projection 10.In addition, lock also is provided with safeties in the chamber, and these safeties comprise rotatable circular flat parts 11, are connected with a dop 12 on circular flat parts 11, be provided with two recesses 15 at the edge of circular flat parts and the hoodle 16 of the band spring that uses of matching with recess 15.This dop 12 may be stuck on the projection 13 above the pull bar 3, and moving right of control pull rod 3 also is provided with projection (not marking among the figure) in addition on the circular flat parts 11, also be provided with a device 14 that undoes the lock that is used to start solid latch mechanism and safeties in the lock chamber.This device that undoes the lock is installed on the lock housing, movable rotation.The device 14 that undoes the lock is provided with jack 17.Operating principle of the present utility model is as follows: when dead bolt 1 inserts in the lock tube, the gib head on the tongue hook 4 of dead bolt 1 the inside and tongue hook 5 both sides is stuck in lock tube and the lock chamber, by the key device 14 that undoes the lock, the device 14 that undoes the lock rotates under the driving of key, and jack 9 the insides that latch 6 inserted on the pull bars 3 by the projection that drives on latch 6 and the circular flat parts 11; Dop 12 is stuck in the back of the projection 13 on the pull bar 3, thereby makes the pull bar can not move left and right.The key device 14 that undoes the lock makes the device backward rotation that undoes the lock when unblanking, and drives solid latch mechanism and safeties, makes mortise lock 6 leave jack 9, and dop 12 leaves projection 13, is further rotated key again and pull bar is moved right unblank.
Claims (5)
1, a kind of pick-proof door lock, comprise dead bolt (1), lock housing (2), pull bar (3), it is characterized in that the one side of dead bolt (1) is provided with a groove, movable bolt has tongue hook (4) in groove, the device that undoes the lock (14) that also is provided with solid latch mechanism and starts this solid latch mechanism in the lock chamber.
2, pick-proof door lock according to claim 1, it is characterized in that solid latch mechanism comprises the hoodle that has spring (8) that a side of latch (6), latch (6) is provided with two pits (7) and match and use with recessed Hangzhoupro (7), go up the one side relative at pull bar (3) and be provided with a jack (9) that matches and use with latch (6) with mortise lock (6).
3, pick-proof door lock according to claim 1 and 2, it is characterized in that in the lock chamber, also being provided with safeties, these safeties comprise rotatable circular flat parts (11), on circular flat parts (11), be connected with a dop (12), be provided with two recesses (15) at the edge of circular flat parts and the hoodle (16) of the band spring that uses of matching with recess (15).
4, pick-proof door lock according to claim 1 and 2 is characterized in that also being provided with two grooves at the another side of dead bolt, and movable bolt has a tongue hook (5) in every groove.
5, pick-proof door lock according to claim 3 is characterized in that also being provided with two grooves at the another side of dead bolt, and movable bolt has a tongue hook (5) in every groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98245388 CN2388298Y (en) | 1998-10-26 | 1998-10-26 | Anti-picking door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98245388 CN2388298Y (en) | 1998-10-26 | 1998-10-26 | Anti-picking door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2388298Y true CN2388298Y (en) | 2000-07-19 |
Family
ID=33991161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98245388 Expired - Fee Related CN2388298Y (en) | 1998-10-26 | 1998-10-26 | Anti-picking door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2388298Y (en) |
-
1998
- 1998-10-26 CN CN 98245388 patent/CN2388298Y/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 |