CN2191258Y - Anti-theft door lock with cross-key double-hook bolt - Google Patents
Anti-theft door lock with cross-key double-hook bolt Download PDFInfo
- Publication number
- CN2191258Y CN2191258Y CN 94205357 CN94205357U CN2191258Y CN 2191258 Y CN2191258 Y CN 2191258Y CN 94205357 CN94205357 CN 94205357 CN 94205357 U CN94205357 U CN 94205357U CN 2191258 Y CN2191258 Y CN 2191258Y
- Authority
- CN
- China
- Prior art keywords
- hook
- dead bolt
- door lock
- cross
- lock
- 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 discloses an anti-theft door lock with a cross key and a double hook bolt, which is a door lock with a double bolt having two-stage open-close mechanism. One end of each hook bolt is movably connected with the lower slide block of the open-close mechanism; when a cross key is rotated to the second-stage open-close mechanism, a pair of hook bolts are pushed and fall to hook a lock catch block, and the purpose that the bolts can not be disengaged from the lock catch body is reached thereby. The utility model has the advantages of reasonable and compact structure, reliability, firmness, and easy fabrication.
Description
The utility model belongs to improved pair of flapper lock, is applicable on the door that is installed in dwelling house or office in case the deathwatch.
General mechanical double flapper lock, be provided with two dead bolts, one is oblique dead bolt, stretch in the keeper by first order switching mechanism, another is square dead bolt (or cylinder shape lock tongue), push in (or withdrawing from) keeper by second level switching mechanism, it all is directly to go into directly that two dead bolts push lock box, dead bolt with the keeper vertical direction on can block keeper, reach the purpose that door pushes away not open, but if with the passing of time door is out of shape, door becomes big with the distance of the doorframe that keeper is housed, dead bolt release lock button box more easily just then, and door then can easily be pushed open, do not reach firm purpose of locking a door, thereby exist not enough.
The purpose of this utility model is to provide a kind of cross-key double-hook bolt safe-guard door lock, be a kind of pair of flapper lock, the dead bolt of its second level switching mechanism be a pair of (to) the hook-type dead bolt, the hook-type dead bolt hooks keeper all the time and can not break away from, thereby overcomes the deficiency that existing door lock exists.
Below in conjunction with accompanying drawing narration the utility model structure.
Fig. 1 is the utility model structure chart.
Fig. 2 is the utility model hook dead bolt structure chart.
Fig. 3 for the utility model unblank the back configuration diagram.
See Fig. 1, the utility model includes lock housing (1), by oblique tongue pull bar (13), pull bar torsion spring (14), the oblique one-level switching mechanism formed of tongue shift fork (12) and oblique dead bolt (2), by the secondary switch mechanism that sliding block (4), middle slide block (5), top shoe (6), location column (7), rear lock core shift fork (8), middle slide block torsion spring (9), sliding block guide pillar (10), hook tongue axle (11) and hook-type dead bolt (3) are formed, compositions such as keeper (16) and cross-key front and back lock core.One end of hook-type dead bolt (3) (see figure 2) is a semicircular arc, the other end is a hook-type, the semi arch end of a pair of hook-type dead bolt (3) is movably connected in the two side ends of sliding block (4) with hook tongue axle (11), be positioned at the both sides of oblique dead bolt (2), tiltedly dead bolt (2) both sides have side channel (A), and hook-type dead bolt (3) can slide in side channel (A).Sliding block (4) can be gone up at sliding block guide pillar (10) and slide, and top shoe (6) is connected to a fixed with sliding block (4), and middle slide block (5) effect in the middle of top shoe (6) and sliding block (4) and by middle slide block torsion spring (9) can reciprocatingly slide.Cross key rear lock core shift fork (8) is slip (5) in the pushing when left-right rotation, middle slide block (5) promotion sliding block (4) moves on sliding block guide pillar (10) and hook-type dead bolt (3) is pushed (or withdrawing from) keeper (16), when sliding block (4) moved to lock housing (1) side, the hook end of a pair of hook-type dead bolt (3) stretched into to fall and hooks keeper (16); The preceding lock core shift fork of cross-key can stir rear lock core shift fork (8) and oblique dead bolt shift fork (12) pushes hook-type dead bolt (3) (or withdrawing from) keeper (16) and oblique dead bolt (2) is withdrawed from button box (16); Location column (7) plays the effect with middle slide block (5) location when middle slide block (5) slides, tiltedly dead bolt shift fork (12) mid point is movably connected on the top shoe (6), and an end is gone up at oblique tongue pull bar (13) and moved, and the other end can be stirred by preceding lock core shift fork; Pushing drawing rod fixture block (15) can block not stretchy with oblique tongue pull bar (13).When closing (or open) door lock, cross-key is inserted lock core and rotation, slide block (5) during its shift fork will promote, middle slide block (5) promotes sliding block (4) hook-type dead bolt (2) is pushed (or withdrawing from) keeper, realizes shutting (or unblanking).
The utility model has the advantages that a pair of hook-type dead bolt lays respectively at oblique dead bolt both sides and can hook keeper, firm firm, compactness rational in infrastructure, processing and manufacturing is easy, and cross-key confidentiality height is a kind of high level security, firm firm safe-guard door lock.
(14) are the pull bar stage clip among Fig. 1.
Fig. 1 is the utility model Figure of abstract.
Claims (2)
1, a kind of cross-key double-hook bolt safe-guard door lock, adopt the cross-key lock core, include compositions such as lock housing, one-level switching mechanism, secondary switch mechanism, keeper, the dead bolt that it is characterized in that two machine switching mechanisms is an a pair of hook-type dead bolt (3), hook-type dead bolt (3) one ends are semicircular arc, the other end is a hook-type, the semi arch end is movably connected in sliding block (4) two side ends respectively, and can go up at the side channel (A) of oblique dead bolt and slide, when sliding block (4) moved to lock housing (1) side, a pair of hook-type dead bolt (3) stretched into to fall and pins keeper (16).
2, safe-guard door lock according to claim 1, two outside angles that it is characterized in that the semi arch end of hook-type dead bolt (3) are 60～66 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94205357 CN2191258Y (en) | 1994-03-22 | 1994-03-22 | Anti-theft door lock with cross-key double-hook bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94205357 CN2191258Y (en) | 1994-03-22 | 1994-03-22 | Anti-theft door lock with cross-key double-hook bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2191258Y true CN2191258Y (en) | 1995-03-08 |
Family
ID=33824295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94205357 Expired - Fee Related CN2191258Y (en) | 1994-03-22 | 1994-03-22 | Anti-theft door lock with cross-key double-hook bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2191258Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616789B (en) * | 2004-11-30 | 2010-06-02 | 蔡妙雪 | Double hook type door lock structure |
| CN1632268B (en) * | 2004-12-01 | 2010-07-21 | 蔡妙雪 | Double hook type door lock arrangement |
-
1994
- 1994-03-22 CN CN 94205357 patent/CN2191258Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616789B (en) * | 2004-11-30 | 2010-06-02 | 蔡妙雪 | Double hook type door lock structure |
| CN1632268B (en) * | 2004-12-01 | 2010-07-21 | 蔡妙雪 | Double hook type door lock arrangement |
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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 |