CN205451343U - Domestic safety alarm of hidden - Google Patents
Domestic safety alarm of hidden Download PDFInfo
- Publication number
- CN205451343U CN205451343U CN201620283570.0U CN201620283570U CN205451343U CN 205451343 U CN205451343 U CN 205451343U CN 201620283570 U CN201620283570 U CN 201620283570U CN 205451343 U CN205451343 U CN 205451343U
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Abstract
The utility model discloses a domestic safety alarm of hidden, including switch S1, chip IC1, not gate U1 and triode V2, connect E's positive pole of switch S1's one end, switch S1's negative pole connecting resistance R1, resistance R3, resistance R6, loudspeaker B, triode V2's projecting pole and chip IC1's pin 8, resistance R1's other end connecting resistance R2 and chip IC1's pin 7, electric capacity C1 is connected to resistance R2's the other end, chip IC1's pin 2 and chip IC1's pin 6, resistance R3's other end connecting resistance R5, sensor P and not gate U1's input, chip IC1's pin 4 is connected to not gate U1's output. The utility model discloses domestic safety alarm of hidden circuit structure is simple, components and parts are few, and practical battery prevents as the power that the burglar from cutting off the electric wire netting and leading to the alarm malfunctioning, utilizes pressure sensor as the source of triggering simultaneously, and is disguised high, is difficult for explaiing, consequently has convenient to use, disguised good and acousto -optic warning's advantage.
Description
Technical field
This utility model relates to a kind of alarm, specifically a kind of Concealed household safety alarm.
Background technology
Along with improving constantly of living standard, the security protection of family is worked and day by day payes attention to by people, and the when that especially night, owner sleeping soundly, thief slips into and steals valuables in family, and therefore, installing burglar alarm at home is very effective antitheft mode.But the alarm for average family is the most few on market, the devices such as several alarm many uses infrared ray of minority, gate controlled switch are as trigger source, there is also the defects such as reflection is insensitive, rate of false alarm is high, and for veteran burglar, it is easy to this kind of alarm is cracked, thus takes to crack measure, continue crime, the most this kind of alarm many uses mains-supplied, once supply line is cut off, and alarm will lose efficacy.
Utility model content
The purpose of this utility model is to provide the Concealed household safety alarm of a kind of simple in construction, stable performance, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
nullA kind of Concealed household safety alarm，Including switch S1、Chip IC 1、Not gate U1 and audion V2，One end of described switch S1 connects the positive pole of power supply E，The negative pole of switch S1 connects resistance R1、Resistance R3、Resistance R6、Loudspeaker B、The emitter stage of audion V2 and the pin 8 of chip IC 1，The other end of resistance R1 connects resistance R2 and the pin 7 of chip IC 1，The other end of resistance R2 connects electric capacity C1、The pin 2 of chip IC 1 and the pin 6 of chip IC 1，The other end of resistance R3 connects resistance R5、Sensor P and the input of not gate U1，The outfan of not gate U1 connects the pin 4 of chip IC 1，The colelctor electrode of the other end connecting triode V1 of loudspeaker B，The base stage of audion V1 connects resistance R4，The other end of resistance R4 connects the pin 3 of chip IC 1，The other end of electric capacity C1 connects resistance R7、Resistance R8、The other end of sensor P、The positive pole of power supply E、The emitter stage of audion V1 and the pin 1 of chip IC 1，The base stage of the other end connecting triode V2 of resistance R5，The colelctor electrode of audion V2 connects the anode of diode D2、The negative electrode of diode D2 and the other end of resistance R7，The other end of resistance R6 connects the negative electrode of diode D1、The anode of diode D2 and the other end of resistance R8，The model of described chip IC 1 is NE555.
As preferred version of the present utility model: described sensor P is pressure transducer.
As preferred version of the present utility model: described diode D1 and diode D2 is light emitting diode.
As preferred version of the present utility model: described power supply E is No. 5 aneroid battery of 2 joint.
Compared with prior art, the beneficial effects of the utility model are: this utility model Concealed household safety alarm circuit structure is simple, components and parts are few, use battery as power supply, preventing burglar from cutting off electrical network causes alarm malfunctioning, utilize pressure transducer as trigger source simultaneously, disguised high, it is difficult to crack, the advantage therefore with easy to use, good concealment and sound and light alarm.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of Concealed household safety alarm.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1，In this utility model embodiment，A kind of Concealed household safety alarm，Including switch S1、Chip IC 1、Not gate U1 and audion V2，One end of described switch S1 connects the positive pole of power supply E，The negative pole of switch S1 connects resistance R1、Resistance R3、Resistance R6、Loudspeaker B、The emitter stage of audion V2 and the pin 8 of chip IC 1，The other end of resistance R1 connects resistance R2 and the pin 7 of chip IC 1，The other end of resistance R2 connects electric capacity C1、The pin 2 of chip IC 1 and the pin 6 of chip IC 1，The other end of resistance R3 connects resistance R5、Sensor P and the input of not gate U1，The outfan of not gate U1 connects the pin 4 of chip IC 1，The colelctor electrode of the other end connecting triode V1 of loudspeaker B，The base stage of audion V1 connects resistance R4，The other end of resistance R4 connects the pin 3 of chip IC 1，The other end of electric capacity C1 connects resistance R7、Resistance R8、The other end of sensor P、The positive pole of power supply E、The emitter stage of audion V1 and the pin 1 of chip IC 1，The base stage of the other end connecting triode V2 of resistance R5，The colelctor electrode of audion V2 connects the anode of diode D2、The negative electrode of diode D2 and the other end of resistance R7，The other end of resistance R6 connects the negative electrode of diode D1、The anode of diode D2 and the other end of resistance R8，The model of described chip IC 1 is NE555.
Sensor P is pressure transducer.Diode D1 and diode D2 is light emitting diode.Power supply E is No. 5 aneroid battery of 2 joint.
nullOperation principle of the present utility model is: the trigger element in circuit is pressure transducer，It is arranged in the carpet located of entering、Under callosity，Guan Bi switch S1 during use，Owing to the base stage of audion V2 obtains electric，Audion V2 is not turned on，Light emitting diode D2 lights luminescence，Prompting alarm normally works，Under normal circumstances，Pressure transducer P does not stresses，It is not turned on inside it，Therefore the input of not gate U1 is high level，Its outfan is low level，Chip IC 1 failure of oscillation，Its 3 foot output low level，Audion V1 is not turned on，Loudspeaker B does not works，Enter when there being uninvited guest to open the door，Its internal conducting of pressure transducer P stress，The input of not gate U1 becomes low level，Its outfan becomes high level，4 feet of chip IC 1 are driven high，Its outfan 3 foot is high level，Audion V1 turns on，Loudspeaker B sends chimes of doom，The base potential of audion V2 turns low simultaneously，Audion V2 turns on，Light emitting diode D1 turns on luminescence，Realize the function of sound and light alarm.
Claims (4)
- null1. a Concealed household safety alarm，Including switch S1、Chip IC 1、Not gate U1 and audion V2，It is characterized in that，One end of described switch S1 connects the positive pole of power supply E，The negative pole of switch S1 connects resistance R1、Resistance R3、Resistance R6、Loudspeaker B、The emitter stage of audion V2 and the pin 8 of chip IC 1，The other end of resistance R1 connects resistance R2 and the pin 7 of chip IC 1，The other end of resistance R2 connects electric capacity C1、The pin 2 of chip IC 1 and the pin 6 of chip IC 1，The other end of resistance R3 connects resistance R5、Sensor P and the input of not gate U1，The outfan of not gate U1 connects the pin 4 of chip IC 1，The colelctor electrode of the other end connecting triode V1 of loudspeaker B，The base stage of audion V1 connects resistance R4，The other end of resistance R4 connects the pin 3 of chip IC 1，The other end of electric capacity C1 connects resistance R7、Resistance R8、The other end of sensor P、The positive pole of power supply E、The emitter stage of audion V1 and the pin 1 of chip IC 1，The base stage of the other end connecting triode V2 of resistance R5，The colelctor electrode of audion V2 connects the anode of diode D2、The negative electrode of diode D2 and the other end of resistance R7，The other end of resistance R6 connects the negative electrode of diode D1、The anode of diode D2 and the other end of resistance R8，The model of described chip IC 1 is NE555.
- Concealed household safety alarm the most according to claim 1, it is characterised in that described sensor P is pressure transducer.
- Concealed household safety alarm the most according to claim 1, it is characterised in that described diode D1 and diode D2 is light emitting diode.
- Concealed household safety alarm the most according to claim 1, it is characterised in that described power supply E is No. 5 aneroid battery of 2 joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620283570.0U CN205451343U (en) | 2016-04-07 | 2016-04-07 | Domestic safety alarm of hidden |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620283570.0U CN205451343U (en) | 2016-04-07 | 2016-04-07 | Domestic safety alarm of hidden |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205451343U true CN205451343U (en) | 2016-08-10 |
Family
ID=56606548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620283570.0U Expired - Fee Related CN205451343U (en) | 2016-04-07 | 2016-04-07 | Domestic safety alarm of hidden |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205451343U (en) |
-
2016
- 2016-04-07 CN CN201620283570.0U patent/CN205451343U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20170407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |