CN201266428Y - Gas leakage alarming device - Google Patents
Gas leakage alarming device Download PDFInfo
- Publication number
- CN201266428Y CN201266428Y CNU2008201061411U CN200820106141U CN201266428Y CN 201266428 Y CN201266428 Y CN 201266428Y CN U2008201061411 U CNU2008201061411 U CN U2008201061411U CN 200820106141 U CN200820106141 U CN 200820106141U CN 201266428 Y CN201266428 Y CN 201266428Y
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- CN
- China
- Prior art keywords
- gas leakage
- switch
- alarm device
- gas
- pipeline
- 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 belongs to the technical field of sockets and discloses a gas leakage alarm device. The technical proposal comprises a transmission mechanism, a power supply and a power supply switch and a circuit mechanism; wherein, the transmission comprises a reduction gear driven by a motor, and the output shaft of the transmission mechanism can be used for being linked with a valve which is fixed on a gas conveying pipeline, thereby realizing control on the opening state and the closing state thereof; the circuit mechanism is provided with a state switch connected with the power supply switch, a sensing circuit, a power amplifying circuit and an alarm element, wherein, a gas leakage sensing probe is electrically connected with the sensing circuit in the circuit mechanism, and the state switch in the circuit mechanism is electrically connected with the motor. The motor in the gas leakage alarm device is linked with the pipeline valve by the output shaft of the transmission mechanism, thereby being capable of realizing the control on the opening state and the closing state; therefore, once gas leakage occurs to the pipeline which is connected with a gas source, the gas leakage alarm device not only can emit an alarm signal, but also realize the closing of the pipeline valve to prevent the occurrence of various accidents caused by the gas leakage; and the gas leakage alarm device overcomes the problem that the alarm device in the prior art can only emit the alarm signal and can not close the pipeline with the gas leakage.
Description
Technical field
The utility model belongs to the controlling alarm field of mechanical technique, relates to a kind of gas leakage alarm device that can close Be Controlled valve of gas pipeline switch automatically concretely.
Background technology
The exploitation of petroleum gas has increased a kind of available energy kind, and it not only can substitute coal as the fuel that family uses, and the more important thing is that it can also be as the fuel supply of vehicles such as automobile, to substitute the gasoline of costliness day by day of constantly raising the price at present.At present, the gas leakage warning device that is used on the gas pipeline is made up of sensor and the loudspeaker that have power amplifier, can only send the sound and light alarm signal when dangerous situation occurring, and can not close processing to the pipeline of gas leakage.This especially uses the automobile of rock gas as power source for the natural gas line that very easily produces blast, and it is suspended in a bomb on user's head beyond doubt, does not know when to produce a disaster.
The utility model content
In case the purpose of this utility model just provides a kind of leaking air during dangerous situation, not only can send alerting signal, the more important thing is and to implement the reliable gas leakage alarm device of closed safe to pipeline valve automatically.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of gas leakage alarm control device comprises:
By the gear train that the combination of the reduction gearing of driven by motor constitutes, the output shaft of this gear train can be used in be fixed in fuel gas transportation pipeline on valve connect, to control the realization of its open mode and closed condition;
Power supply and power switch thereof,
Be provided with the circuit mechanism of the status switch, sensing circuit, power amplifier and the alarm element that are connected with described power switch,
The gas leakage sensor is electrically connected with sensing circuit in the described circuit mechanism,
Status switch in the described circuit mechanism is electrically connected with motor.
In addition, described status switch is the three condition switch; Be parallel with the sound and light alarm element of exporting by power amplifier at described power switch place.
A kind of gas leakage alarm device provided by the utility model compared with prior art has the following advantages: one, because the reduction gearing that is provided with in this gas leakage alarm device by driven by motor makes up the gear train that constitutes, its output shaft connects with pipeline valve, can realize the control of its open mode and closed condition, when therefore needing only the pipeline generation gas leakage that is connected with source of the gas, not only can send alerting signal, but also can realize closing of pipeline valve, to prevent generation because of the various accidents of gas leakage initiation; They are two years old, since use be provided with in this gas leakage alarm device can the controlling plumbing fixtures valve open, the contactor of closed condition, therefore in use and maintenance process, can realize the manual control of the opening and closing of pipeline valve is helped the maintenance of automobile pipeline; Its three because the power switch of gas leakage alarm device is provided with second warning device, can be installed on easily in the automobile cab, for the driver and conductor provides convenience to the judgement of the safety case of automobile.
Description of drawings
Fig. 1: be the structural representation of the user mode of gas leakage alarm device;
Fig. 2: be the electrical connection schematic diagram of status switch in the above-mentioned gas leakage alarm device.
Embodiment
The structure and the principle of work of the gas leakage alarm device that the utility model is provided below in conjunction with accompanying drawing are described in further detail.
As shown in Figure 1, the structural representation that is used in the gas leakage alarm device of valve on the control gas pipeline that provides for the utility model.When this device be installed on rock gas as the automobile of power source on the time, the 12V voltage that provides with automobile is as the power supply of this device, and power switch 1 is set on this power supply, the motor of this power supply in the power amplifier 3 that is provided with alarm element 2, alarm element, sensor circuit 4 forming circuit mechanisms and the gear train 6 that is made of the reduction gearing combination that motor 5 drives thereof provides voltage; Be fixed on the gas pipeline, on the valve and other locational sensors 7 be electrically connected with the sensor circuit; The output shaft 8 of above-mentioned gear train connects with the switch bright 10 of the valve of control gas pipeline 9, to control the realization of its open mode and closed condition, makes rock gas by the opening and closing of gas cylinder 11 to the fuel gas transportation pipeline conveying.
In above-mentioned circuit mechanism, be provided with status switch 12, this status switch is three gear on-offs as shown in Figure 2, the i.e. warning gear that is connected with power amplifier 3, sensor circuit 4 and the motor 5 of alarm element 2, alarm element, by switch realize the positive and negative electrode conversion, make the driven by motor valve switch bright close close gear, and can realize the driven by motor valve switch bright open the return gear.
Its principle of work is:
When aeration in gas cylinder, must turn off power switch 1, to prevent since during aeration the reasonable leakage of rock gas can cause and report to the police and make the bright phenomenon of closing automatically of aeration valve switch take place.
After aeration in the gas cylinder finishes, turn on the power switch 1:
---status switch is set to the warning gear that is connected with power amplifier, sensor circuit and the motor of alarm element, alarm element, as shown in Figure 2, A, B switch contact is communicated with respectively with D, E contact.As long as have the gas leakage sensing element to sound the alarm by sensing circuit, power amplifier and alarm element this moment, and go out the switch bright 10 that wheel combination and output shaft drive the valve that is connected again by driven by motor and close gas pipeline.
---status switch is set to automatic closed condition, promptly when maintenance is vehicle or system, need be with valve closing, A, the B switch contact in the status switch was communicated with E, F contact respectively and then directly made motor and power switch electric connection as shown in Figure 2 this moment, combination of driven by motor reduction gearing and output shaft drive bright 10 rotations of switch of the valve that is connected again and close gas pipeline, and this moment is not because the power amplifier of sensor circuit and alarm element has work then can not sound the alarm.
---status switch is set to the return state, after detection finishes after maintenance finishes or to system, need be with valve open, this moment, A, the B switch contact in the status switch was communicated with C, D contact respectively as shown in Figure 2, the both positive and negative polarity that then directly makes motor pass through direct supply is changed also and the power switch electric connection, then combination of driven by motor reduction gearing and output shaft drive bright 10 backward rotation of switch of the valve that is connected again, open gas pipeline and get final product.
When being arranged on this gas leakage alarm device on the automobile, take advantage of personnel in time to find fault in order to make four of pilothouse, i.e. passage chimes of doom, one road sound and light alarm mechanism 13 in parallel at the power switch place is to save the shared cab space of alarm mechanism.
Claims (3)
1, a kind of gas leakage alarm device is characterized in that comprising:
By the gear train that the combination of the reduction gearing of driven by motor constitutes, the output shaft of this gear train can be used in be fixed in fuel gas transportation pipeline on valve connect, to control the realization of its open mode and closed condition;
Power supply and power switch thereof,
Be provided with the circuit mechanism of the status switch, sensing circuit, power amplifier and the alarm element that are connected with described power switch,
The gas leakage sensor is electrically connected with sensing circuit in the described circuit mechanism,
Status switch in the described circuit mechanism is electrically connected with motor.
2, a kind of gas leakage alarm device as claimed in claim 1, it is characterized in that: described status switch is the three condition switch.
3, a kind of gas leakage alarm device as claimed in claim 1 is characterized in that: be parallel with the sound and light alarm element by power amplifier output at described power switch place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201061411U CN201266428Y (en) | 2008-10-08 | 2008-10-08 | Gas leakage alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201061411U CN201266428Y (en) | 2008-10-08 | 2008-10-08 | Gas leakage alarming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201266428Y true CN201266428Y (en) | 2009-07-01 |
Family
ID=40832802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201061411U Expired - Fee Related CN201266428Y (en) | 2008-10-08 | 2008-10-08 | Gas leakage alarming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201266428Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2477776A (en) * | 2010-02-12 | 2011-08-17 | Haven Ltd | Valve with leak detector |
| CN102979950A (en) * | 2012-12-24 | 2013-03-20 | 苏州才子佳人文化传播有限公司 | Alarm type gas leakage induction cutoff switch |
| CN106168332A (en) * | 2016-08-12 | 2016-11-30 | 姚俊 | A kind of gas leakage alarming device |
| CN109979163A (en) * | 2019-05-15 | 2019-07-05 | 永康微唯智能科技有限公司 | A kind of carbon monoxide leakage alarm system for kitchen use |
-
2008
- 2008-10-08 CN CNU2008201061411U patent/CN201266428Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2477776A (en) * | 2010-02-12 | 2011-08-17 | Haven Ltd | Valve with leak detector |
| CN102979950A (en) * | 2012-12-24 | 2013-03-20 | 苏州才子佳人文化传播有限公司 | Alarm type gas leakage induction cutoff switch |
| CN106168332A (en) * | 2016-08-12 | 2016-11-30 | 姚俊 | A kind of gas leakage alarming device |
| CN109979163A (en) * | 2019-05-15 | 2019-07-05 | 永康微唯智能科技有限公司 | A kind of carbon monoxide leakage alarm system for kitchen use |
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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: 20090701 Termination date: 20101008 |