CN202324836U - Key safety mechanism for anti-theft door lock body - Google Patents
Key safety mechanism for anti-theft door lock body Download PDFInfo
- Publication number
- CN202324836U CN202324836U CN2011204546897U CN201120454689U CN202324836U CN 202324836 U CN202324836 U CN 202324836U CN 2011204546897 U CN2011204546897 U CN 2011204546897U CN 201120454689 U CN201120454689 U CN 201120454689U CN 202324836 U CN202324836 U CN 202324836U
- Authority
- CN
- China
- Prior art keywords
- lock body
- safety plate
- dead bolt
- fixed
- tapered end
- 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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Abstract
The utility model relates to a key safety mechanism for an anti-theft door lock body. The key safety mechanism comprises a lock body shell, a tapered end, a lock-tongue push plate and a lock-tongue; the tapered end is arranged on the lock body shell, and comprises a tapered end shift fork; the lock-tongue push plate is fixed with the lock-tongue; the key safety mechanism is characterized by comprising a safety sheet, a spring and a limiting column; the limiting column is fixed on the lock body shell and matched with the safety sheet; the safety sheet is rotatably connected with the lock-tongue push plate and matched with the tapered end shift fork; and one end of the spring is fixed with the lock-tongue push plate, and the other end of the spring is fixed with the safety sheet. According to the key safety mechanism provided by the utility model, the closing door function of the key is enhanced, and whether a person in the room can rotate the handle to open the door is controlled by the key, thus being widely applied to the special fields such as prisons and interrogation rooms.
Description
Technical field
The utility model relates to a kind of key insurance institution of security door lock body, is applicable to specific function occasions such as prison, hearing room.
Background technology
All kinds of security door lock bodies of prior art are mainly double quick lock body and common lock body; They can both open the door at an indoor side turning handle under the situation of not using key; At the prison, specific function such as hearing room, there is great potential safety hazard in such security door lock body.
The utility model content
The purpose of the utility model is to overcome the above-mentioned deficiency that exists in the prior art, and the key insurance institution of a kind of reasonable in design, security door lock body that safety is good is provided.
The utility model addresses the above problem the technical scheme that is adopted: a kind of key insurance institution of security door lock body; Comprise lock body shell, tapered end, dead bolt push pedal, dead bolt; Tapered end is installed on the lock body shell, and tapered end comprises the tapered end fork, and dead bolt push pedal and dead bolt are fixed; It is characterized in that: also comprise safety plate, spring, limited post; Limited post is fixed on the lock body shell, and it cooperates with safety plate; Safety plate and dead bolt push pedal are rotationally connected, and it cooperates with the tapered end fork; Spring one end and dead bolt push pedal are fixed, and the other end and safety plate are fixed.
The utility model has draw-in groove on described safety plate, draw-in groove cooperates with limited post.
The utility model also comprises the safety plate limited post, and the safety plate limited post is fixed in the dead bolt push pedal, and it cooperates with safety plate.
The utility model is intrinsic dead bolt push pedal riveting post in the dead bolt push pedal, on safety plate, is fixed with safety plate spring riveting post, and spring one end and dead bolt push pedal riveting post are fixed, and the other end and safety plate spring riveting post are fixed.
The utility model compared with prior art has the following advantages and effect: the utility model has made increased functionality that key is closed the door, and can enable to control indoor occupant opens the door by turning handle, is adapted to be widely used in specific regions such as prison, hearing room.
Description of drawings
Fig. 1 is the lock a door structural representation of the state of not insuring of the utility model embodiment.
Fig. 2 is the utility model embodiment lock a door and insure structural representation of state.
Fig. 3 is the structural representation of the utility model embodiment door opening state.
Fig. 4 for the utility model embodiment with the key structural representation when insuring of locking a door.
Structural representation when Fig. 5 turns the key in the lock for the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and through embodiment the utility model is done further to specify.
Embodiment:
Referring to Fig. 1～Fig. 5, the utility model embodiment comprises lock body shell 1, dead bolt push pedal 2, dead bolt 3, spring 4, tapered end 5, safety plate 6.
Tapered end 5 is installed on the lock body shell 1, and tapered end 5 comprises tapered end fork 51.Dead bolt push pedal 2 is fixing with dead bolt 3.Rotating band moving lock head fork 51 rotated mobile dead bolt push pedal 2 after tapered end 5 inserted key, thereby moved dead bolt 3, played the effect of locking a door and opening the door.These can be with reference to existing lockset technology.
Safety plate 6 is rotationally connected through transmission riveting point 7 with dead bolt push pedal 2.On safety plate 6, have draw-in groove 62.On safety plate 6, also be fixed with safety plate spring riveting post 61.
Intrinsic dead bolt push pedal riveting post 21 in dead bolt push pedal 2.
Spring 4 one ends and dead bolt push pedal riveting post 21 are fixing, and the other end and safety plate spring riveting post 61 are fixing, make that one of which end and dead bolt push pedal 2 are fixing, and the other end and safety plate 6 are fixing.
Limited post 11 is fixed on the lock body shell 1.
Safety plate limited post 22 is fixed in the dead bolt push pedal 2, cooperates with safety plate 6, but the rotational angle of stop limits safety plate 6, to 6 position-limiting actions of safety plate.
When the tapered end fork 51 that inserts key turns tapered end 5 carries out at closing time, when the key turns last lap, tapered end fork 51 cooperates with safety plate 6, and tapered end fork 51 can be run into safety plate 6, makes safety plate 67 rotations around the transmission riveting point.Subsequently; Draw-in groove 62 on the safety plate 6 cooperates with spacing 11, and draw-in groove 62 contacts with limited post 11, and under the effect of spring 4 hold mode; This moment, safety plate 6 was locked with dead bolt push pedal 2; The transmission mechanism of handle can't act on dead bolt push pedal 2, and this moment, lock body key insurance function was just opened, thereby did not allow the indoor occupant turning handle to open the door.
When the tapered end fork 51 that inserts key turns tapered end 5 opened the door, tapered end fork 51 cooperated with safety plate 6, and tapered end fork 51 can be run into safety plate 6; Make safety plate 67 rotations around the transmission riveting point; Draw-in groove 62 is separated with limited post 11, and under the effect of spring 4 hold mode, tapered end fork 51 drives dead bolt push pedals 2 motions simultaneously; Tapered end 5 is got in the lock body, thereby realize door opening state.
Claims (4)
1. the key insurance institution of a security door lock body comprises lock body shell, tapered end, dead bolt push pedal, dead bolt, and tapered end is installed on the lock body shell, and tapered end comprises the tapered end fork, and dead bolt push pedal and dead bolt are fixed; It is characterized in that: also comprise safety plate, spring, limited post; Limited post is fixed on the lock body shell, and it cooperates with safety plate; Safety plate and dead bolt push pedal are rotationally connected, and it cooperates with the tapered end fork; Spring one end and dead bolt push pedal are fixed, and the other end and safety plate are fixed.
2. the key insurance institution of security door lock body according to claim 1 is characterized in that: on described safety plate, have draw-in groove, draw-in groove cooperates with limited post.
3. the key insurance institution of security door lock body according to claim 1 is characterized in that: also comprise the safety plate limited post, the safety plate limited post is fixed in the dead bolt push pedal, and it cooperates with safety plate.
4. the key insurance institution of security door lock body according to claim 1; It is characterized in that: intrinsic dead bolt push pedal riveting post in the dead bolt push pedal; On safety plate, be fixed with safety plate spring riveting post, spring one end and dead bolt push pedal riveting post are fixed, and the other end and safety plate spring riveting post are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204546897U CN202324836U (en) | 2011-11-16 | 2011-11-16 | Key safety mechanism for anti-theft door lock body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204546897U CN202324836U (en) | 2011-11-16 | 2011-11-16 | Key safety mechanism for anti-theft door lock body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202324836U true CN202324836U (en) | 2012-07-11 |
Family
ID=46436817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204546897U Expired - Fee Related CN202324836U (en) | 2011-11-16 | 2011-11-16 | Key safety mechanism for anti-theft door lock body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202324836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877711A (en) * | 2012-09-24 | 2013-01-16 | 韦志强 | Locking piece for anti-theft lock |
-
2011
- 2011-11-16 CN CN2011204546897U patent/CN202324836U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877711A (en) * | 2012-09-24 | 2013-01-16 | 韦志强 | Locking piece for anti-theft lock |
| CN102877711B (en) * | 2012-09-24 | 2015-03-11 | 韦志强 | Locking piece for anti-theft lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20121116 |