CN205777949U - A kind of safety door latch - Google Patents
A kind of safety door latch Download PDFInfo
- Publication number
- CN205777949U CN205777949U CN201620538958.0U CN201620538958U CN205777949U CN 205777949 U CN205777949 U CN 205777949U CN 201620538958 U CN201620538958 U CN 201620538958U CN 205777949 U CN205777949 U CN 205777949U
- Authority
- CN
- China
- Prior art keywords
- lock core
- sliding part
- door latch
- safety door
- snap close
- 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
Landscapes
- Lock And Its Accessories (AREA)
Abstract
The utility model discloses a kind of safety door latch, including lock housing and lock core, also include: detection device, the position of at least two pellet for detecting when lock core has object to insert in lock core, if testing result is abnormal, export a feedback signal；Perform device, in response to described feedback signal, the object inserted in lock core is released.This utility model has foreign bodies detection function, when having detected that foreign body can be released lockhole when inserting snap close by foreign body, increases the difficulty that stealer is unblanked, greatly reduces the success rate that stealer is unblanked, and this utility model has higher safety.
Description
Technical field
This utility model relates to home security field, more specifically, it relates to a kind of safety door latch.
Background technology
Along with growth in the living standard, the article that people put at home are more and more valuable.With us, the event of burglary is often had to occur, because the stolen situation causing great economic loss is the most not within minority.Some thieves grasping consummate technical ability of unblanking usually can easily open the door lock in room, repeatedly succeeds.For ensureing property safety, people generally install monitoring camera around room additional, but monitoring camera is only to provide image document for the investigation and evidence collection after stealing, and it is very little to the effect improving housing safety, and the real means improving housing safety are to take precautions against in possible trouble.In numerous preventive means, the success rate that reduction thief unblanks is to reduce the effective means that pilferage event occurs, improves housing safety.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of safety door latch, it is possible to effectively reduce the success rate that thief unblanks.
For achieving the above object, this utility model provides following technical scheme:
A kind of safety door latch, including lock housing and lock core, also includes:
Detection device, the position of at least two pellet for detecting when lock core has object to insert in lock core, if testing result is abnormal, export a feedback signal；
Perform device, in response to described feedback signal, the object inserted in lock core is released.
By such scheme, detection device has detected when foreign body inserts in lockhole, and performing device can release foreign body from lockhole, increases the difficulty that thief unblanks, reduces its success rate unblanked.
Preferably, described detection device includes:
Pressure transducer, is arranged on lock core interior between the end and the inwall of lock core of marble spring, for detecting the marble spring pressure to lock core inwall；
Microswitch, is arranged on lockhole and is positioned at one end of lock core；
Comparison module, by the output valve of pressure transducer compared with setting value；
Judge module, its input is connected with the outfan of microswitch and comparison module, and its outfan is used for exporting described feedback signal.
By such scheme, detection device can accurately be told and insert the key whether object of lock core matches with lock core.
Preferably, described execution device includes:
Pushing mechanism, including sliding part and the first force piece, described sliding part arranges in lock core and is positioned at the end of lockhole, and it is the axial of lockhole that described sliding part lock core sliding connects its glide direction, and described first force piece is used for driving sliding part to slide outside lock core；
Locking mechanism, is locked in initial position by sliding part, is controlled by described feedback signal and unlocks sliding part.
By such scheme, detection device has detected when foreign body inserts lock core, and sliding part is unlocked and is released by foreign body.
Preferably: described locking mechanism includes the snap close being rotationally connected with lock core, the second force piece driving snap close to rotate and acts on snap close and make its counter-rotational electric magnet.
By such scheme, control electric magnet and can be achieved with lock slide or unlocked.
Preferably: the rotation of described snap close is axially parallel to the axial of lockhole.
Pass through such scheme, it is possible to obtain relatively stable latch-up structure.
Preferably: described snap close is between the first force piece and lockhole, and described sliding part is provided with the draw-in groove entered for snap close.
By such scheme, during sliding part slides, when draw-in groove moves to snap close, snap close buckles in draw-in groove, is locked by sliding part.
Preferably: described first force piece is driving spring.
Preferably: described second force piece is torsion spring.
Compared with prior art, the utility model has the advantages that: this utility model has foreign bodies detection function, when having detected that foreign body can be released lockhole when inserting snap close by foreign body, increase the difficulty that stealer is unblanked, greatly reducing the success rate that stealer is unblanked, this utility model has higher safety.
Accompanying drawing explanation
Fig. 1 is the first view of door lock；
Fig. 2 is the A portion enlarged drawing in Fig. 1；
Fig. 3 is the second view of door lock；
B portion enlarged drawing in Fig. 4 bitmap 3；
Fig. 5 is circuit theory diagrams of the present utility model.
Description of reference numerals: 1, lock core；2, key；3, pressure transducer；4, marble spring；5, pellet；6, guide cylinder；7, driving spring；8, location dish；9, sliding part；10, microswitch；11, electric magnet；12, fixing seat；13, rotating shaft；14, snap close；15, torsion spring；16, draw-in groove.
Detailed description of the invention
Embodiment one:
With reference to Fig. 1, a kind of safety door latch, including lock core 1 and lockhole.Inwall at lock core 1 is positioned at the installation place of marble spring 4 and is provided with pressure transducer 3, and the quantity at least two of pressure transducer 3, one end of marble spring 4 contacts with pressure transducer 3, and the other end contacts with pellet 5.
With reference to Fig. 2, it is positioned at one end of lock core 1 equipped with microswitch 10 at lockhole.Having cavity in lock core 1, be provided with the location dish 8 coaxial with lock core 1 in the cavities, the central authorities at location dish 8 offer the through hole of circle.It is hollow structure at the diapire of lock core 1 equipped with the guide cylinder 6 coaxial with lock core 1, guide cylinder 6.Columned sliding part 9 is positioned in guide cylinder 6 through through hole and its one end, is provided with driving spring 7 in guide cylinder 6, and the diapire of one end of driving spring 7 and lock core 1 is fixed；The end of the other end and sliding part 9 is fixed.Sliding part 9 is freely slidable, and the external diameter of sliding part 9 is less than the width of snap close 14.At the inwall of lock core 1 equipped with fixing seat 12, snap close 14 is hinged with fixing seat 12 by rotating shaft 13, rotating shaft 13 be axially parallel to location dish 8 is axially the axial of lockhole, the end of snap close 14 is hook solid.Being arranged with torsion spring 15 in rotating shaft 13, the two ends of torsion spring 15 abut respectively at fixing seat 12 and snap close 14, and torsion spring 15 applies the pressure towards sliding part 9 to snap close 14.The end being positioned at snap close 14 on location dish 8 is provided with electric magnet 11.With reference to Fig. 4, sliding part 9 is provided with the draw-in groove 16 that the hook part for snap close 14 enters.
Such as Fig. 2, the initial position of sliding part 9, during now snap close 14 buckles into draw-in groove 16, sliding part 9 is locked, and driving spring 7 is in compressive state, and the end of sliding part 9 is positioned at the end face of the end of lockhole and sliding part 9 port just to snap close 14.
With reference to Fig. 5, the input of the fan-out weighted-voltage D/A converter of pressure transducer 3 connects, and the outfan of digital to analog converter and the input with digital comparator, digital comparator is connected with " with door " by phase inverter.The outfan of microswitch 10 is connected with the input of " with door ", exports high level signal when microswitch 10 is triggered.The outfan of " with door " is connected by the base stage of resistance R with audion Q1, and magnet spool is connected between transmitting collection and the colelctor electrode of audion Q1, is connected to power supply V between transmitting collection and the colelctor electrode of audion Q1.
When there being foreign body to insert in lockhole, (" foreign body " described in it is to be noted in full refers to the object in addition to the key 2 supporting with lock core 1, including other key 2 or sheet metal), the position of each pellet 5 in lock core 1 can convert, and microswitch 10 also can be triggered simultaneously.Actually, when supporting key 2 inserts that in lockhole, microswitch 10 is triggered, the position of each pellet 5 in lock core 1 determines that, if changing other keys 2 into or object inserting lockhole, when then microswitch 10 is triggered, have the deviation tram, position of pellet 5, the most just can judge key 2 mistake inserted or have other objects such as sheet metal to insert lockhole, i.e. having tried to unblank.
nullIn the present embodiment，By marble spring 4, the pressure of pressure transducer 3 is detected the position of each pellet 5，The output voltage of pressure transducer 3 is converted into digital quantity，Digital comparator by this digital quantity compared with the digital quantity of setting，When both are equal，Digital comparator output high level，The output low level when both are unequal，When lockhole has foreign body to insert，The low level of digital comparator output becomes high level after phase inverter，When the input equal input high level signal of " with door " i.e. microswitch 10 be triggered and during the deviation tram, position of pellet 5 in lock core 1 (having foreign body to insert lockhole)，" with door " output high level，This high level becomes electric current after resistance R and flows into the base stage of audion Q1，Electric current flows through magnet spool after the amplification of audion Q1，Electric magnet 11 produces magnetic force and attracts snap close 14，Snap close 14 is made to separate with draw-in groove 16，Sliding part 9 is unlocked，Driving spring 7 drives sliding part 9，Sliding part 9 enters in lockhole and the object that extrudes in lockhole is pushed out lockhole (see figure 3).
Additionally, the moment separated with microswitch 10 it is pushed out at object, microswitch 10 exports without level, " with door " output low level, and its magnetic force of the coil losing electricity of electric magnet 11 disappears, snap close 14 contacts at the effect of torsion spring 15 sliding part 9 that rains, when the key 2 supporting with lock core 1 inserts, sliding part 9 is pushed back by key 2, when draw-in groove 16 moves at snap close 14, snap close 14 buckles into draw-in groove 16, and sliding part 9 is locked.
Embodiment two:
Pressure transducer 3 is replaced with range sensor, range sensor is contained in the inwall of lock core 1 so that it is alignment probe pellet 5, the outfan of range sensor is connected with the input of digital to analog converter, the principle of embodiment two is much the same with the principle of embodiment one, repeats no more here.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to above-described embodiment, and all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.It should be pointed out that, for those skilled in the art, without departing from the some improvements and modifications under this utility model principle premise, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. a safety door latch, including lock housing and lock core (1), is characterized in that, also include:
Detection device, is used for detecting the position of at least two pellet (5) in lock core (1) when lock core (1) has object to insert, if testing result is abnormal, exports a feedback signal；
Performing device, the object that will insert in lock core (1) in response to described feedback signal is released.
Safety door latch the most according to claim 1, is characterized in that, described detection device includes:
Pressure transducer (3), is positioned in being arranged on lock core (1) between the end of marble spring (4) and the inwall of lock core (1), is used for the pressure detecting marble spring (4) to lock core (1) inwall；
Microswitch (10), is arranged on lockhole and is positioned at one end of lock core (1)；
Comparison module, by the output valve of pressure transducer (3) compared with setting value；
Judge module, its input is connected with the outfan of microswitch (10) and comparison module, and its outfan is used for exporting described feedback signal.
Safety door latch the most according to claim 1, is characterized in that, described execution device includes:
Pushing mechanism, including sliding part (9) and the first force piece, described sliding part (9) arranges in lock core (1) and is positioned at the end of lockhole, described sliding part (9) is connected with lock core (1) sliding and its glide direction is the axial of lockhole, and described first force piece is used for driving sliding part (9) to slide outward to lock core (1)；
Locking mechanism, is locked in initial position by sliding part (9), is controlled by described feedback signal and unlocks sliding part (9).
Safety door latch the most according to claim 3, is characterized in that: described locking mechanism includes the snap close (14) being rotationally connected with lock core (1), the second force piece driving snap close (14) to rotate and acts on snap close (14) and make its counter-rotational electric magnet (11).
Safety door latch the most according to claim 4, is characterized in that: the rotation of described snap close (14) is axially parallel to the axial of lockhole.
Safety door latch the most according to claim 5, is characterized in that: described snap close (14) is between the first force piece and lockhole, and described sliding part (9) is provided with the draw-in groove (16) entered for snap close (14).
Safety door latch the most according to claim 3, is characterized in that: described first force piece is driving spring (7).
Safety door latch the most according to claim 4, is characterized in that: described second force piece is torsion spring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620538958.0U CN205777949U (en) | 2016-06-02 | 2016-06-02 | A kind of safety door latch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620538958.0U CN205777949U (en) | 2016-06-02 | 2016-06-02 | A kind of safety door latch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205777949U true CN205777949U (en) | 2016-12-07 |
Family
ID=58134379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620538958.0U Expired - Fee Related CN205777949U (en) | 2016-06-02 | 2016-06-02 | A kind of safety door latch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205777949U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386190A (en) * | 2017-08-03 | 2019-02-26 | 浙江全域科技有限公司 | A kind of smart lock with sound prompt function |
| CN109798028A (en) * | 2019-03-27 | 2019-05-24 | 南京英维尔科技服务有限公司 | A kind of mistake proofing method for unlocking and mistake proofing lock core |
-
2016
- 2016-06-02 CN CN201620538958.0U patent/CN205777949U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386190A (en) * | 2017-08-03 | 2019-02-26 | 浙江全域科技有限公司 | A kind of smart lock with sound prompt function |
| CN109798028A (en) * | 2019-03-27 | 2019-05-24 | 南京英维尔科技服务有限公司 | A kind of mistake proofing method for unlocking and mistake proofing lock core |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205805179U (en) | Safety door latch | |
| CN204590839U (en) | Non-interlock tandem type two-stage protection safety lock | |
| CN205476972U (en) | Drawer cabinet electronic lock convenient to open cabinet | |
| CN205777949U (en) | A kind of safety door latch | |
| CN202055624U (en) | Outdoor door lock of power equipment | |
| CN202913798U (en) | Electronic door lock with mechanical key serving as pure backup | |
| CN205875951U (en) | Can seal lock core, digital lock | |
| CN204462221U (en) | A kind of anti-electricity-theft device | |
| CN204899478U (en) | Electronic set bar formula lock solid structure | |
| CN204632617U (en) | A kind of infrared measurement of temperature safety knife lock | |
| CN207829648U (en) | A kind of Lock for drawer | |
| US10837207B2 (en) | Control center door latch | |
| CN215255364U (en) | Lockset and storage cabinet | |
| CN104790760B (en) | A kind of photoelectric combination lock of double anti-theft functions | |
| CN204609524U (en) | A kind of photoelectric combination lock of double anti-theft functions | |
| CN202249279U (en) | Manual electric surface-mounted composite anti-theft door lock | |
| CN101994431B (en) | Electronic anti-theft lock of rolling door | |
| CN204876888U (en) | Fingerprint lock with press and lock | |
| US11661787B2 (en) | Safe and lock detection system | |
| CN103786810A (en) | Remotely-controlled seat cask lock for electric motorcycles | |
| CN209544893U (en) | A kind of antitheft electric cabinet of electricity charge recording, checking, and charging | |
| CN109403742B (en) | Debugging limit structure of intelligent panel lock and intelligent panel lock | |
| CN202131859U (en) | Pneumatic door lock | |
| CN210888372U (en) | Intelligent electronic lock and storage device | |
| CN201351397Y (en) | Open-close locking device of core-inserting lock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20190602 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |