CN205375762U - Domestic natural gas early warning and automatic closing device - Google Patents
Domestic natural gas early warning and automatic closing device Download PDFInfo
- Publication number
- CN205375762U CN205375762U CN201521057893.XU CN201521057893U CN205375762U CN 205375762 U CN205375762 U CN 205375762U CN 201521057893 U CN201521057893 U CN 201521057893U CN 205375762 U CN205375762 U CN 205375762U
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- natural gas
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Abstract
The utility model provides a domestic natural gas early warning and automatic closing device has effectively solved the problem that current natural gas alarm device does not have self -closing natural gas line. Its scheme is, detects sensor, warning circuit, pipeline switch detection circuitry, natural gas detection circuitry, solenoid valve ON -OFF control circuit, controller and power supply circuit including the natural gas, the natural gas detects the sensor, pipeline switch detection circuitry is connected with the controller, and the controller is connected with warning circuit, solenoid valve ON -OFF control circuit and natural gas detection circuitry, and power supply circuit detects sensor, warning circuit, pipeline switch detection circuitry, natural gas detection circuitry, solenoid valve ON -OFF control circuit and controller power supply for the natural gas.
Description
Technical field
This utility model relates to alarm device technical field, particularly a kind of natural gas in home early warning and self closing device.
Background technology
Raising along with the exploitation of natural gas and technology, use to natural gas in people's daily life, very general, but natural gas is in the process used, also there will be various problem, such as: the corruption of pipeline, joint leakage and sometimes making be finished after forget to close gas or close the kitchen range top to open switch etc., cause very great loss all can to the life of people and lives and properties.
And have a lot of natural gas warning device in the market, only serve the effect that natural gas leaking is reported to the police, be not but automatically switched off the device of natural gas line, it is possible to cause great safety problem.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the purpose of this utility model is in that to provide a kind of natural gas in home early warning and self closing device, efficiently solves the problem that existing natural gas warning device is not automatically switched off natural gas line.
nullThe technical scheme of its solution is，Including detection of natural gas sensor、Warning circuit、Pipe switch testing circuit、Detection of natural gas circuit、Electromagnetic valve switch control circuit、Controller and power circuit，Described detection of natural gas sensor、Pipe switch testing circuit is connected with controller，Controller and warning circuit、Electromagnetic valve switch control circuit and detection of natural gas circuit connect，Power circuit is detection of natural gas sensor、Warning circuit、Pipe switch testing circuit、Detection of natural gas circuit、Electromagnetic valve switch control circuit and controller are powered，Described detection of natural gas sensor、Warning circuit、Pipe switch testing circuit、Detection of natural gas circuit、Electromagnetic valve switch control circuit and controller，Including chip U1、Detection of natural gas sensor SE1、Buzzer LS1、Electromagnetic valve switch P1 and chip SE2，3 pins of described chip U1 and 4 pins are connected with 4 pins of detection of natural gas sensor SE1 and 3 pins respectively，2 pins of detection of natural gas sensor SE1 and 1 pin ground connection GND and power supply VCC respectively，5 pins and 6 pins of chip U1 are connected with the other end of one end of crystal oscillator JZ1 and crystal oscillator JZ1 respectively，5 pins of chip U1 and 6 pins are respectively through electric capacity C2 and electric capacity C1 all ground connection GND，Foot meridian capacitor C3 ground connection GND is drawn in the 8 of chip U1，8 pins of chip U1 meet power supply VCC through resistance R3，15 pins of chip U1 are connected through the base stage of resistance R15 with audion Q2，The grounded emitter GND of audion Q2，The emitter stage of audion Q2 is connected with one end of buzzer LS1，Another termination power VCC of buzzer LS1，18 pins of chip U1 and 17 pins meet power supply VCC through resistance R5 and resistance R6 respectively，18 pins of chip U1 and 17 pins switch S1 and pipe detection pass switch S2 ground connection GND respectively through pipe detection，19 pins of chip U1 are connected through the base stage of resistance R1 with audion Q1，The base stage of audion Q1 is through resistance R2 ground connection GND，The grounded emitter GND of audion Q1，The colelctor electrode of audion Q1 connects 12V power supply through diode D1，The colelctor electrode of audion Q1 connects 12V power supply through electromagnetic valve switch，20 pins of chip U1 are connected with the outfan of operational amplifier U3，The outfan of operational amplifier U3 is connected through the in-phase input end of resistance R4 with operational amplifier U3，The inverting input of operational amplifier U3 is through slide rheostat R8 ground connection GND，The in-phase input end of operational amplifier U3 is connected through the outfan of resistance R9 with operational amplifier U4，The inverting input of operational amplifier U4 is connected through 6 pins of resistance R7 and electric capacity C4 and chip SE2 successively，1 pin of chip SE2 meets power supply VCC，4 pins of chip SE2 and 5 pins all ground connection GND，3 pins of chip SE2 are connected through the in-phase input end of resistance R10 with operational amplifier U4，The in-phase input end of operational amplifier U4 is connected through the outfan of resistance R13 with operational amplifier U4，One end of resistance R7 is through resistance R12 ground connection GND，The other end of resistance R7 is through resistance R11 ground connection GND.
This utility model can detect opening or closing of natural gas line, if be detected that user is not turned off switch after using, device can be automatically switched off pipe switch after a certain time, after detection of natural gas sensor has detected natural gas leakage, device can close pipe switch immediately, and sends acoustic alarm.
Accompanying drawing explanation
Fig. 1 is operation principle structural representation of the present utility model；
Fig. 2 is detection of natural gas circuit connection diagram of the present utility model；
Fig. 3 is warning circuit connection figure of the present utility model；
Fig. 4 is pipe switch testing circuit connection figure of the present utility model；
Fig. 5 is electromagnetic valve switch control circuit connection figure of the present utility model；
Fig. 6 is controller of the present utility model and peripheral connection figure thereof；
Fig. 7 is power circuit connection figure of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
nullIn conjunction with shown in Fig. 1 to Fig. 7，A kind of natural gas in home early warning of the present utility model and self closing device，Including detection of natural gas sensor、Warning circuit、Pipe switch testing circuit、Detection of natural gas circuit、Electromagnetic valve switch control circuit、Controller and power circuit，Described detection of natural gas sensor、Pipe switch testing circuit is connected with controller，Controller and warning circuit、Electromagnetic valve switch control circuit and detection of natural gas circuit connect，Power circuit is detection of natural gas sensor、Warning circuit、Pipe switch testing circuit、Detection of natural gas circuit、Electromagnetic valve switch control circuit and controller are powered，Described detection of natural gas sensor、Warning circuit、Pipe switch testing circuit、Detection of natural gas circuit、Electromagnetic valve switch control circuit and controller，Including chip U1、Detection of natural gas sensor SE1、Buzzer LS1、Electromagnetic valve switch P1 and chip SE2，3 pins of described chip U1 and 4 pins are connected with 4 pins of detection of natural gas sensor SE1 and 3 pins respectively，2 pins of detection of natural gas sensor SE1 and 1 pin ground connection GND and power supply VCC respectively，5 pins and 6 pins of chip U1 are connected with the other end of one end of crystal oscillator JZ1 and crystal oscillator JZ1 respectively，5 pins of chip U1 and 6 pins are respectively through electric capacity C2 and electric capacity C1 all ground connection GND，Foot meridian capacitor C3 ground connection GND is drawn in the 8 of chip U1，8 pins of chip U1 meet power supply VCC through resistance R3，15 pins of chip U1 are connected through the base stage of resistance R15 with audion Q2，The grounded emitter GND of audion Q2，The emitter stage of audion Q2 is connected with one end of buzzer LS1，Another termination power VCC of buzzer LS1，18 pins of chip U1 and 17 pins meet power supply VCC through resistance R5 and resistance R6 respectively，18 pins of chip U1 and 17 pins switch S1 and pipe detection pass switch S2 ground connection GND respectively through pipe detection，19 pins of chip U1 are connected through the base stage of resistance R1 with audion Q1，The base stage of audion Q1 is through resistance R2 ground connection GND，The grounded emitter GND of audion Q1，The colelctor electrode of audion Q1 connects 12V power supply through diode D1，The colelctor electrode of audion Q1 connects 12V power supply through electromagnetic valve switch，20 pins of chip U1 are connected with the outfan of operational amplifier U3，The outfan of operational amplifier U3 is connected through the in-phase input end of resistance R4 with operational amplifier U3，The inverting input of operational amplifier U3 is through slide rheostat R8 ground connection GND，The in-phase input end of operational amplifier U3 is connected through the outfan of resistance R9 with operational amplifier U4，The inverting input of operational amplifier U4 is connected through 6 pins of resistance R7 and electric capacity C4 and chip SE2 successively，1 pin of chip SE2 meets power supply VCC，4 pins of chip SE2 and 5 pins all ground connection GND，3 pins of chip SE2 are connected through the in-phase input end of resistance R10 with operational amplifier U4，The in-phase input end of operational amplifier U4 is connected through the outfan of resistance R13 with operational amplifier U4，One end of resistance R7 is through resistance R12 ground connection GND，The other end of resistance R7 is through resistance R11 ground connection GND.
Described chip U1 is single-chip microcomputer STC15F2K60S2.
Described chip SE2 is pressure transducer MDSP-002.
This utility model in use,
nullAfter natural gas motorcar，Forget to close natural gas line switch，After a certain time，This natural gas in home early warning and self closing device can be automatically switched off pipe switch，The Push And Release state of pipe switch can be detected by pipe switch testing circuit，If natural gas line is open mode，This device detects the pressure of the natural gas line switch way of escape by pressure transducer SE2，If a pressure be detected that value is not reaching to setting value，Then prove that user is currently in use natural gas，Under this state, device does not carry out process action，If detection force value reaches setting value，Prove that user stops using，And after user makes to be finished natural gas，Forget to close pipe switch，Warning circuit is reported to the police，Notify user，If the user while family，Natural gas line can be closed in time，If natural gas line is not closed in time，After time delay certain time，Controller can pass through closed electromagnetic valve pipe switch.If natural gas line is closed mode, this device does not carry out other actions.
This utility model also has natural gas leakage detection function, has detected whether gas leakage by detection of natural gas sensor, once after gas leakage being detected, no matter whether user is using natural gas, and this device all can close electromagnetic valve, and sends acoustic alarm.
This utility model can detect opening or closing of natural gas line, if be detected that user is not turned off switch after using, device can be automatically switched off pipe switch after a certain time, after detection of natural gas sensor has detected natural gas leakage, device can close pipe switch immediately, and sends acoustic alarm.
Claims (3)
- null1. a natural gas in home early warning and self closing device，Including detection of natural gas sensor、Warning circuit、Pipe switch testing circuit、Detection of natural gas circuit、Electromagnetic valve switch control circuit、Controller and power circuit，It is characterized in that，Described detection of natural gas sensor、Pipe switch testing circuit is connected with controller，Controller and warning circuit、Electromagnetic valve switch control circuit and detection of natural gas circuit connect，Power circuit is detection of natural gas sensor、Warning circuit、Pipe switch testing circuit、Detection of natural gas circuit、Electromagnetic valve switch control circuit and controller are powered，Described detection of natural gas sensor、Warning circuit、Pipe switch testing circuit、Detection of natural gas circuit、Electromagnetic valve switch control circuit and controller，Including chip U1、Detection of natural gas sensor SE1、Buzzer LS1、Electromagnetic valve switch P1 and chip SE2，3 pins of described chip U1 and 4 pins are connected with 4 pins of detection of natural gas sensor SE1 and 3 pins respectively，2 pins of detection of natural gas sensor SE1 and 1 pin ground connection GND and power supply VCC respectively，5 pins and 6 pins of chip U1 are connected with the other end of one end of crystal oscillator JZ1 and crystal oscillator JZ1 respectively，5 pins of chip U1 and 6 pins are respectively through electric capacity C2 and electric capacity C1 all ground connection GND，Foot meridian capacitor C3 ground connection GND is drawn in the 8 of chip U1，8 pins of chip U1 meet power supply VCC through resistance R3，15 pins of chip U1 are connected through the base stage of resistance R15 with audion Q2，The grounded emitter GND of audion Q2，The emitter stage of audion Q2 is connected with one end of buzzer LS1，Another termination power VCC of buzzer LS1，18 pins of chip U1 and 17 pins meet power supply VCC through resistance R5 and resistance R6 respectively，18 pins of chip U1 and 17 pins switch S1 and pipe detection pass switch S2 ground connection GND respectively through pipe detection，19 pins of chip U1 are connected through the base stage of resistance R1 with audion Q1，The base stage of audion Q1 is through resistance R2 ground connection GND，The grounded emitter GND of audion Q1，The colelctor electrode of audion Q1 connects 12V power supply through diode D1，The colelctor electrode of audion Q1 connects 12V power supply through electromagnetic valve switch，20 pins of chip U1 are connected with the outfan of operational amplifier U3，The outfan of operational amplifier U3 is connected through the in-phase input end of resistance R4 with operational amplifier U3，The inverting input of operational amplifier U3 is through slide rheostat R8 ground connection GND，The in-phase input end of operational amplifier U3 is connected through the outfan of resistance R9 with operational amplifier U4，The inverting input of operational amplifier U4 is connected through 6 pins of resistance R7 and electric capacity C4 and chip SE2 successively，1 pin of chip SE2 meets power supply VCC，4 pins of chip SE2 and 5 pins all ground connection GND，3 pins of chip SE2 are connected through the in-phase input end of resistance R10 with operational amplifier U4，The in-phase input end of operational amplifier U4 is connected through the outfan of resistance R13 with operational amplifier U4，One end of resistance R7 is through resistance R12 ground connection GND，The other end of resistance R7 is through resistance R11 ground connection GND.
- 2. a kind of natural gas in home early warning according to claim 1 and self closing device, it is characterised in that described chip U1 is single-chip microcomputer STC15F2K60S2.
- 3. a kind of natural gas in home early warning according to claim 1 and self closing device, it is characterised in that described chip SE2 is pressure transducer MDSP-002.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521057893.XU CN205375762U (en) | 2015-12-18 | 2015-12-18 | Domestic natural gas early warning and automatic closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521057893.XU CN205375762U (en) | 2015-12-18 | 2015-12-18 | Domestic natural gas early warning and automatic closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205375762U true CN205375762U (en) | 2016-07-06 |
Family
ID=56259146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521057893.XU Expired - Fee Related CN205375762U (en) | 2015-12-18 | 2015-12-18 | Domestic natural gas early warning and automatic closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205375762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112735100A (en) * | 2021-02-27 | 2021-04-30 | 鑫安利中（北京）科技有限公司 | Safety monitoring device for major hazard source |
-
2015
- 2015-12-18 CN CN201521057893.XU patent/CN205375762U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112735100A (en) * | 2021-02-27 | 2021-04-30 | 鑫安利中（北京）科技有限公司 | Safety monitoring device for major hazard source |
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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: 20160706 Termination date: 20161218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |