CN204833559U - Warning circuit of lock theftproof in limited time - Google Patents
Warning circuit of lock theftproof in limited time Download PDFInfo
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- CN204833559U CN204833559U CN201520318713.2U CN201520318713U CN204833559U CN 204833559 U CN204833559 U CN 204833559U CN 201520318713 U CN201520318713 U CN 201520318713U CN 204833559 U CN204833559 U CN 204833559U
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Abstract
The utility model discloses a warning circuit of lock theftproof in limited time, including chip IC1, electrode slice A, resistance R1 and triode V1, resistance R1's one end connecting resistance R2, resistance R6, electric capacity C4, triode V2's collecting electrode, triode V3's collecting electrode, triode V6's projecting pole, switch S1, chip IC1's pin 4, chip IC1's pin 8, chip IC2's pin 4, chip IC2's pin 8 and chip IC3's pin 2. The utility model discloses warning circuit adopts electrode slice cooperation lock to constitute the hidden pickproof lock, reminds the user to the chimes of doom that sends that the burglar who attempts to pry open the lock or destroy the burglary -resisting door can be timely, then can not send the chimes of doom to normal opening the door, consequently very big reduction the vexation of bringing for the user because of the wrong report, consequently have accurate, disguised high, the advantage that the misstatement rate is low of control.
Description
Technical field
The utility model relates to a kind of warning circuit, specifically a kind of door lock anti-theft warning circuit in limited time.
Background technology
Along with the raising of people's living standard, the valuables of family also get more and more, as mobile phone, notebook computer, jewellery etc., therefore also more and more pay attention to security protection work, and alarm is as the achievement in research of Modern Electronic industry, has been applied in home security widely, but traditional alarm many employings infrared acquisition or shock sensor are as trigger source, crack for veteran burglar and be easy to, and the rate of false alarm of this kind of alarm is high, allow people be pestered beyond endurance.
Summary of the invention
The purpose of this utility model is to provide that a kind of structure is simple, the door lock anti-theft warning circuit in limited time of stable performance, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of door lock anti-theft warning circuit in limited time, comprises chip IC 1, electrode slice A, one end contact resistance R2 of resistance R1 and triode V1, described resistance R1, resistance R6, electric capacity C4, the collector of triode V2, the collector of triode V3, the emitter of triode V6, switch S 1, the pin 4 of chip IC 1, the pin 8 of chip IC 1, the pin 4 of chip IC 2, the pin 8 of chip IC 2 and the pin 2 of chip IC 3, the other end of resistance R1 connects electric capacity C1, the pin 6 of chip IC 1 and the pin 7 of chip IC 1, the other end of electric capacity C1 connects electric capacity C2, electric capacity C3, electric capacity C5, resistance R3, the emitter of triode V1, the emitter of triode V4, the emitter of triode V5, the pin 1 of chip IC 1, the pin 1 of chip IC 2, the negative pole of loudspeaker B and power supply E, the pin 2 of chip IC 1 connects the other end and the electrode slice A of electric capacity C2, the pin 5 of chip IC 1 connects the other end of electric capacity C3, the base stage of the pin 3 connecting triode V1 of chip IC 1, the other end of collector contact resistance R2 of triode V1 and the base stage of triode V2, the emitter of triode V2 connects the other end of electric capacity C4, the other end of resistance R3, the pin 2 of chip IC 2 and the pin 6 of chip IC 2, the pin 5 of chip IC 2 connects the other end of electric capacity C5, the pin 3 contact resistance R4 of chip IC 2, the base stage of the other end connecting triode V3 of resistance R4, the base stage of the emitter connecting triode V4 of triode V3, the collector of triode V4 connects the pin 1 of chip IC 3, the base stage of the pin 5 connecting triode V5 of chip IC 3, the other end of collector contact resistance R6 of triode V5 and the base stage of triode V6, the collector of triode V6 connects the other end of loudspeaker B, the other end of switch S 1 connects the positive pole of power supply E, and the model of described chip IC 1 and chip IC 2 is NE555, and the model of chip IC 3 is KD9561.
As preferred version of the present utility model: described power supply E is 5V direct current.
Compared with prior art, the beneficial effects of the utility model are: the utility model warning circuit adopts electrode slice to coordinate door lock composition Concealed theft-proof lock, chimes of doom can be sent timely for the burglar attempting to pry open door lock or damage antitheft door and remind user, then chimes of doom can not be sent for normal enabling, therefore greatly reducing because reporting the worry brought to user by mistake, therefore having and controlling the advantage accurate, disguise is high, rate of false alarm is low.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of door lock anti-theft warning circuit in limited time.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of door lock anti-theft warning circuit in limited time, comprises chip IC 1, electrode slice A, one end contact resistance R2 of resistance R1 and triode V1, described resistance R1, resistance R6, electric capacity C4, the collector of triode V2, the collector of triode V3, the emitter of triode V6, switch S 1, the pin 4 of chip IC 1, the pin 8 of chip IC 1, the pin 4 of chip IC 2, the pin 8 of chip IC 2 and the pin 2 of chip IC 3, the other end of resistance R1 connects electric capacity C1, the pin 6 of chip IC 1 and the pin 7 of chip IC 1, the other end of electric capacity C1 connects electric capacity C2, electric capacity C3, electric capacity C5, resistance R3, the emitter of triode V1, the emitter of triode V4, the emitter of triode V5, the pin 1 of chip IC 1, the pin 1 of chip IC 2, the negative pole of loudspeaker B and power supply E, the pin 2 of chip IC 1 connects the other end and the electrode slice A of electric capacity C2, the pin 5 of chip IC 1 connects the other end of electric capacity C3, the base stage of the pin 3 connecting triode V1 of chip IC 1, the other end of collector contact resistance R2 of triode V1 and the base stage of triode V2, the emitter of triode V2 connects the other end of electric capacity C4, the other end of resistance R3, the pin 2 of chip IC 2 and the pin 6 of chip IC 2, the pin 5 of chip IC 2 connects the other end of electric capacity C5, the pin 3 contact resistance R4 of chip IC 2, the base stage of the other end connecting triode V3 of resistance R4, the base stage of the emitter connecting triode V4 of triode V3, the collector of triode V4 connects the pin 1 of chip IC 3, the base stage of the pin 5 connecting triode V5 of chip IC 3, the other end of collector contact resistance R6 of triode V5 and the base stage of triode V6, the collector of triode V6 connects the other end of loudspeaker B, the other end of switch S 1 connects the positive pole of power supply E, and the model of chip IC 1 and chip IC 2 is NE555, and the model of chip IC 3 is KD9561.
Power supply E is 5V direct current.
Principle of work of the present utility model is: door lock alarm is made up of for acoustics circuit etc. single-shot trigger circuit, timer and report.Because it has warning function in limited time, can be used as the annex composition hidden alarm of general door lock.Chip IC 1 and resistance R1, electric capacity C1, electric capacity C2 etc. form touch trigger, the sheet metal A be connected with 2 pin of chip IC 2 is connected with door lock metallic member, and when there being people to unblank, human-induced signal is by IC1 set, triode V1 saturation conduction, triode V2 ends.Electric capacity C1 is charged by resistance R1.Electric capacity C1, resistance R1 and chip IC 1 form mono-stable timing circuit, when electric capacity C4 charges to 1/3 of 2 pin voltages of chip IC 1, and chip IC 2 set.Triode V3 and triode V4 conducting, connect the power supply of chip IC 3.IC3 adopts four sound simulation integrated package KD9562, once add that power electric is beautiful, then can send rapid report band sound equipment, by sending loud chimes of doom after loudspeaker B, the time delay of chip IC 2 is T=1.1*R3*C4, about 30 seconds, owner uses key normally to unblank, be certain to lock to open in 30 seconds in limiting time, then enter and power supply turned off, false alarm situation can not occur; And for false key or steel disc picking lock person, its crime time is longer, exceedes limiting time and then report and rise from all around for sound.The size of limiting time, changes by regulating resistance R3 and electric capacity C4.Circuit adopts electrode slice to coordinate door lock composition Concealed theft-proof lock, chimes of doom can be sent timely for the burglar attempting to pry open door lock or damage antitheft door and remind user, then chimes of doom can not be sent for normal enabling, therefore greatly reducing because reporting the worry brought to user by mistake, therefore having and controlling the advantage accurate, disguise is high, rate of false alarm is low.
Claims (2)
1. an in limited time door lock anti-theft warning circuit, comprises chip IC 1, electrode slice A, resistance R1 and triode V1, it is characterized in that, one end contact resistance R2 of described resistance R1, resistance R6, electric capacity C4, the collector of triode V2, the collector of triode V3, the emitter of triode V6, switch S 1, the pin 4 of chip IC 1, the pin 8 of chip IC 1, the pin 4 of chip IC 2, the pin 8 of chip IC 2 and the pin 2 of chip IC 3, the other end of resistance R1 connects electric capacity C1, the pin 6 of chip IC 1 and the pin 7 of chip IC 1, the other end of electric capacity C1 connects electric capacity C2, electric capacity C3, electric capacity C5, resistance R3, the emitter of triode V1, the emitter of triode V4, the emitter of triode V5, the pin 1 of chip IC 1, the pin 1 of chip IC 2, the negative pole of loudspeaker B and power supply E, the pin 2 of chip IC 1 connects the other end and the electrode slice A of electric capacity C2, the pin 5 of chip IC 1 connects the other end of electric capacity C3, the base stage of the pin 3 connecting triode V1 of chip IC 1, the other end of collector contact resistance R2 of triode V1 and the base stage of triode V2, the emitter of triode V2 connects the other end of electric capacity C4, the other end of resistance R3, the pin 2 of chip IC 2 and the pin 6 of chip IC 2, the pin 5 of chip IC 2 connects the other end of electric capacity C5, the pin 3 contact resistance R4 of chip IC 2, the base stage of the other end connecting triode V3 of resistance R4, the base stage of the emitter connecting triode V4 of triode V3, the collector of triode V4 connects the pin 1 of chip IC 3, the base stage of the pin 5 connecting triode V5 of chip IC 3, the other end of collector contact resistance R6 of triode V5 and the base stage of triode V6, the collector of triode V6 connects the other end of loudspeaker B, the other end of switch S 1 connects the positive pole of power supply E, and the model of described chip IC 1 and chip IC 2 is NE555, and the model of chip IC 3 is KD9561.
2. one according to claim 1 is prescribed a time limit door lock anti-theft warning circuit, and it is characterized in that, described power supply E is 5V direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520318713.2U CN204833559U (en) | 2015-05-18 | 2015-05-18 | Warning circuit of lock theftproof in limited time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520318713.2U CN204833559U (en) | 2015-05-18 | 2015-05-18 | Warning circuit of lock theftproof in limited time |
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| Publication Number | Publication Date |
|---|---|
| CN204833559U true CN204833559U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520318713.2U Expired - Fee Related CN204833559U (en) | 2015-05-18 | 2015-05-18 | Warning circuit of lock theftproof in limited time |
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| Country | Link |
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| CN (1) | CN204833559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842251A (en) * | 2017-12-07 | 2018-03-27 | 长沙准光里电子科技有限公司 | A kind of door lock anti-theft warning circuit of prescribing a time limit |
-
2015
- 2015-05-18 CN CN201520318713.2U patent/CN204833559U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842251A (en) * | 2017-12-07 | 2018-03-27 | 长沙准光里电子科技有限公司 | A kind of door lock anti-theft warning circuit of prescribing a time limit |
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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: 20151202 Termination date: 20160518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |