CN2783074Y - Automatic protector for preventing gas accident - Google Patents
Automatic protector for preventing gas accident Download PDFInfo
- Publication number
- CN2783074Y CN2783074Y CN 200420055663 CN200420055663U CN2783074Y CN 2783074 Y CN2783074 Y CN 2783074Y CN 200420055663 CN200420055663 CN 200420055663 CN 200420055663 U CN200420055663 U CN 200420055663U CN 2783074 Y CN2783074 Y CN 2783074Y
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- circuit
- chip microcomputer
- input end
- input part
- automatic protection
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Abstract
The utility model discloses a household appliance with a safety protection function, particularly an automatic protector for preventing gas accidents. The utility model is characterized in that the utility model is composed of a gas output part, a control part and a control valve, wherein the control valve is connected with the gas output part in a matching mode, and the control part and the control valve are connected electrically. Compared with the prior art, the utility model has the advantage that when a user operates a house hold appliance in error, the utility model can automatically close gas sources in time to effectively prevent gas accidents.
Description
Technical field
The utility model relates to a kind of electrical Household appliance with function of safety protection, exactly is a kind of automatic protection device that prevents gas accidents.
Background technique
At present, domestic gas alarm on sale on the market is of a great variety, but because all there is certain defective in these alarms on structural design, makes the operator some potential safety hazards usually occur when reality is used.These hidden danger are handled and badly just may be caused gas leakage, even breaking out of fire and explosive accident, cause any property loss, even threat to life.Be badly in need of a kind of Gas appliance that when the user slips up, can will burn in the actual life and close the device that the release accident takes place automatically.
The model utility content
It is a kind of when misoperation appears in the user that technical problem to be solved in the utility model is to provide, and can in time close the prevention gas accidents automatic protection device of source of the gas automatically.
Technical solution of the present utility model can realize according to following mode:
The utility model comprises: combustion gas output, control section and control valve, control valve and combustion gas output are matched, control section and control valve electrically connect.
Above-mentioned control section contains: data processing section, the value of establishing input part, valve state input part, manual input part, controlling output circuit, cue circuit; Setting signal is sent into the input end of data processing section in the described value of establishing input part; Described valve state input part and manual input part connect the input end of data processing section respectively; The output terminal of described data processing section joins with the input end of controlling output circuit and cue circuit respectively.
Above-mentioned data processing section contains: single-chip microcomputer, D/A conversion portion; After the D/A conversion portion was sent setting signal in the described value of establishing input part, the input end with single-chip microcomputer joined again; Described valve state input part and manual input part connect the input end of single-chip microcomputer respectively; The output terminal of described single-chip microcomputer joins with the input end of controlling output circuit and cue circuit respectively.
The utility model also can be furnished with temperature transducer or air-sensitive circuit; After described temperature transducer was sent the temperature signal that collects into the D/A conversion portion, the input end with single-chip microcomputer joined again.The output terminal of described air-sensitive circuit and the input end of single-chip microcomputer join.
The utility model also can be furnished with the ignition trigger circuit on the said structure basis; The input end of described ignition trigger circuit and the output terminal of single-chip microcomputer join.
The utility model also can be furnished with display circuit; The output terminal of described single-chip microcomputer and the input end of display circuit join.
When misoperation appearred in the user, the utility model can in time be closed source of the gas automatically, thereby had effectively prevented the generation of gas accidents.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the utility model is further described
Fig. 1 is the utility model overall structure figure;
Fig. 2 is the schematic block circuit diagram of first kind of make of the utility model control section;
Fig. 3 is the circuit theory diagrams of first kind of make of the utility model control section;
Fig. 4 is the circuit theory diagrams of second kind of make of the utility model control section;
Embodiment
A kind of embodiment of the present utility model as shown in Figure 1, 2, 3, it comprises: combustion gas output 1, control section 2 and the control valve 3 that is made of Electromagnetically driven valve, control valve 3 and combustion gas carry-out part 1 minute are matched, control section 2 electrically connects with control valve 3.
Above-mentioned control section 2 contains: single-chip microcomputer (for universal models), the value of establishing input part, D/A conversion portion, valve state input part, manual input part, display circuit, controlling output circuit, cue circuit; After the D/A conversion portion was sent setting signal in the described value of establishing input part, the input end with single-chip microcomputer joined again; Described valve state input part and manual input part connect the input end of single-chip microcomputer respectively; The output terminal of described single-chip microcomputer joins with the input end of display circuit, controlling output circuit and cue circuit respectively.
The utility model also is furnished with temperature transducer and air-sensitive circuit; After described temperature transducer was sent the temperature signal that collects into the D/A conversion portion, the input end with single-chip microcomputer joined again.The output terminal of described air-sensitive circuit and the input end of single-chip microcomputer join.The utility model also is provided with the ignition trigger circuit; The input end of described ignition trigger circuit and the output terminal of single-chip microcomputer join.
If the value input part is contained: the value of establishing device W3, dibit toggle switch BK.
The valve state input part is contained: relay J 2, valve state contact.
Manually the input part is contained: K button, KB button.
Display circuit contains: IC3, IC4, LED, triode T5～T8.
Controlling output circuit contains: IC5, relay J 1, relay J 2.
Cue circuit contains: triode T2, loudspeaker.
The ignition trigger circuit contains: triode T1, relay J 3.
The air-sensitive circuit contains: gas sensitive tube QN, voltage divider W1.
1, data input circuit: be that output terminal by the value of establishing device W3-1 pin sampling end, temperature transducer RT is connected to D/A conversion portion IC6-11 pin input end by dibit toggle switch BK, the digital signal after the D/A conversion is defeated by single-chip microcomputer IC1-13～19 pin by AND NOT gate IC2.
2, the value of establishing display circuit: be by single-chip microcomputer IC1-27～30 pin, IC1-35～38 pin output offers AND NOT gate IC3, seven sections decoder driver IC4 amplify the back by transistor T5～T8 and do data display to LED after deciphering.
3, controlling output circuit: be to be connected to AND NOT gate IC5-1,3 pin by the control signal that single-chip microcomputer IC1-23,24 pin are exported, by IC5-2, the output of 4 pin, amplify pusher motor type relay J1, relay J 2 inter-workings through transistor T3, T4, thus control electric drive valve working.
4, valve state testing circuit: be to be defeated by single-chip microcomputer IC1-1 pin after a zero potential signal being connected to valve state contact 1,2 pin by relay J 2-4,6 pin when the closed state, thereby provide a testing conditions to single-chip microcomputer.Certainly, the inductive switch replacement can be made in the valve state contact in actual production process.
5, gas concentration input circlult: be to change the electrical signal that variation produced of its internal resistance along with the size of the gas concentration in the indoor air and W1 produces the dividing potential drop relation by gas sensing member QN, the voltage of getting when the sampling output terminal of W1 is connected to not gate IC5-10 when reaching certain value, 11 pin just produce reversed phase signal and are defeated by single-chip microcomputer IC1-39 pin.
6, audio communication cue circuit: be through being defeated by AND NOT gate IC5-5,6 pin after transistor T2 amplification back promotion loudspeaker send various different audio communications according to different results, single-chip microcomputer by 22 pin after the various data processing by single-chip microcomputer IC1.
7, electrical storage circuit: form by capacitor C5, resistance R 11,24V, earth potential.When city's electrical network has a power failure, electrical storage circuit by relay J 2-11,13 break contacts to the actuating coil discharge of electric drive valve thereby under the situation that city's electrical network has a power failure, also can in time close its valve.Certainly this electrical storage circuit can adopt reserve battery or ups power to replace in actual production process.
8, automatic ignition trigger circuit: be to be defeated by 3 work of transistor T1 promotion relay J by AND NOT gate IC5-9,8 pin after going out ignition order by single-chip microcomputer IC1-21 human hair combing waste, and start the sparking of electrion coil by J34,8 foot-propelled splice grafting points.
Its working principle was as follows when the utility model was implemented by above-mentioned first kind of structural type:
1, behind the connection power supply, single-chip microcomputer IC1 is in holding state, and this moment, all output ports all were in closed condition.
2, when the value of establishing device W3 edge turns clockwise, by analogue signal of W3-1 pin output, be defeated by D/A converter IC6-11 pin through dibit toggle switch BK-1 retaining, the binary-coded decimal after the D/A conversion is given single-chip microcomputer IC1, is held and the stroke end has been realized data display through the position control of being defeated by seven-segment decoder IC4 and AND NOT gate IC3 after the data processing by output port 27～30 pin, 35～38 pin of IC1, be added to light-emitting diode display jointly through the output of IC4 decoding back and IC3.When these data are kept off as dibit toggle switch BK-1, the representative time value of establishing, resolution s.When dibit toggle switch BK-2 keeps off.This data represented controlled temperature value, resolution ℃
3, when putting dibit toggle switch BK-1 when retaining, and started K work button, single-chip microcomputer IC1 at first opens the valve of electric drive valve by working procedure by output control circuit, light combustible gas by automatic ignition trigger circuit simultaneously.This machine entry time definite value program run mode, the value of establishing video data is when being decremented to zero second.This machine sends the end-of-job order.
4, when putting dibit toggle switch BK-2 when retaining, and when having started the KB button, single-chip microcomputer IC1 at first opens the valve of electric drive valve by working procedure, and lights combustible gas by automatic ignition trigger circuit.This machine enters temperature and controls the method for operation automatically.If when the value display device was decremented to zero with 1 ℃, this machine sent the end-of-job order.
5, after single-chip microcomputer IC1 sends the end-of-job order, be defeated by output control circuit by single-chip microcomputer IC1-23,24 pin, close the valve of electric drive valve.Start the work of valve state detection circuit simultaneously.If the back valve closing is normal after testing, single-chip microcomputer IC1 changes music program over to by the audio communication cue circuit, sends melodious sound equipment and informs people, if valve is not closed tight, the audio communication prompter sends rapid warning audio communication nunciators.
When 6, the utility model runs into city's electrical network power failure in the course of the work, this machine starts electrical storage circuit automatically the current electric energy of depositing is all discharged, and the actuating coil two ends that are added to the electric drive valve by relay J 2-11,13 pin break contacts are closed the valve of Electromagnetically driven valve immediately.
7, the gas concentration input circlult is a separate unit, the start back is detected by 24 hours continual indoor air are followed the tracks of of single-chip microcomputer IC1-39 pin, when as long as the gas concentration input circlult provides one to satisfy condition that single-chip microcomputer IC1 reads in and offer 39 pin, the utility model all can change the super dense alert program of combustion gas immediately under any working method, and sends chimes of doom by the audio communication cue circuit and inform people.
In actual production process, can select serviceability temperature sensor, gas concentration input circlult, automatic ignition trigger circuit, display circuit.
In installation process, of the present utility modelly go into gas and chew with combustion gas net outlet side, city and link.The combustion gas output 1 and the Gas appliance of this machine link.Casing is fixed on the wall, leaves the fire combustion, if use automatic temperature-adjusting control retaining, temperature transducer contacts well with tested cooker.
Another kind of embodiment of the present utility model such as Fig. 1, shown in Figure 4.It also is by the combustion gas output, and control section and control valve are formed.Wherein, control valve is made of solenoid valve DCF; Control section as shown in Figure 4, it is mainly by ic chip, triode T9, T10, relay J 4, J5, loudspeaker B, compositions such as button K.Wherein:
Ic chip-1 pin, capacitor C 10, resistance R 16 have constituted delay circuit; IC-4,11 pin, triode T9, T10, relay J 4, J5, capacitor C 11, C12, resistance R 19, R20 etc. have constituted executive circuit; Relay J 5-4,5 pin and loudspeaker B have formed the audio communication cue circuit.The major function of each built-up circuit of control section is:
Delay circuit: when K switch is connected, charge to capacitor C 10 by B+, and when K switch disconnected, capacitor C 10 was by resistance R 16, the discharge of IC-1 pin;
Executive circuit: after ic chip-1 pin gets B+ voltage, flow to triode T9, T10 by IC-4,11 pin, and amplify pusher motor type relay J4, J5 through it and work, one group of voltage is provided and is added to the two ends of solenoid valve DCF actuating coil by relay J 4-9,13 pin, relay J 5-9,13 pin, capacitor C 11, C12, make it to open or close its valve;
Audio communication cue circuit: under normally off, provide one group of operating voltage by relay J 5-4,6 pin, make it to send cue to loudspeaker.
When the utility model was pressed Fig. 1, form shown in Figure 4 enforcement, its working principle was:
1, connect power supply, enable switch K, B+ is to capacitor C 10 chargings, and B+ also is added on the IC-1 pin simultaneously, makes IC-4,11 pin output positive voltage and offers executive circuit, makes the valve open of solenoid valve DCF, connects combustion gas;
2, cut-off switch K, delay circuit startup work, when the voltage of ic chip-1 pin was reduced to certain value, the voltage of ic chip-4,11 pin was by high step-down, until making the executive circuit condition of losing the job.At this moment, one group of voltage is provided and is added on the two ends of solenoid valve DCF actuating coil, make its valve closing, cut off combustion gas by relay J 4-11,13 pin, relay J 5-11, two groups of break contacts of 13 pin and capacitor C11.
3, behind the end-of-job, relay J 5-4,6 pin break contacts provide one group of voltage to make it send sound prompting to loudspeaker.
Should illustrate, when the utility model press Fig. 1, when structural type shown in Figure 4 is implemented, the function that it only has the control electromagnetic valve open and close and provides the audio communication prompting.Though its function ratio is more single, but still be operable.
Claims (9)
1, a kind of automatic protection device that prevents gas accidents, it is characterized in that: it is made up of combustion gas output (1), control section (2) and control valve (3), and control valve (3) is matched with combustion gas output (1), control section (2) links with control valve (3).
2, a kind of automatic protection device that prevents gas accidents according to claim 1, it is characterized in that: described control section (2) contains: data processing section, the value of establishing input part, valve state input part, manual input part, controlling output circuit, cue circuit; Setting signal is sent into the input end of data processing section in the described value of establishing input part; Described valve state input part and manual input part connect the input end of data processing section respectively; The output terminal of described data processing section joins with the input end of controlling output circuit and cue circuit respectively.
3, a kind of automatic protection device that prevents gas accidents according to claim 2, it is characterized in that: described data processing section contains: single-chip microcomputer, D/A conversion portion; After the D/A conversion portion was sent setting signal in the described value of establishing input part, the input end with single-chip microcomputer joined again; Described valve state input part and manual input part connect the input end of single-chip microcomputer respectively; The output terminal of described single-chip microcomputer joins with the input end of controlling output circuit and cue circuit respectively.
4, a kind of automatic protection device that prevents gas accidents according to claim 3 is characterized in that: also be furnished with temperature transducer; After described temperature transducer was sent the temperature signal that collects into the D/A conversion portion, the input end with single-chip microcomputer joined again.
5, according to claim 3 or 4 described a kind of automatic protection devices that prevent gas accidents, it is characterized in that: also be furnished with the air-sensitive circuit; The output terminal of described air-sensitive circuit and the input end of single-chip microcomputer join.
6, according to claim 3 or 4 described a kind of automatic protection devices that prevent gas accidents, it is characterized in that: also be furnished with the ignition trigger circuit; The input end of described ignition trigger circuit and the output terminal of single-chip microcomputer join.
7, a kind of automatic protection device that prevents gas accidents according to claim 5 is characterized in that: also be furnished with the ignition trigger circuit; The input end of described ignition trigger circuit and the output terminal of single-chip microcomputer join.
8, according to claim 3 or 4 described a kind of automatic protection devices that prevent gas accidents, it is characterized in that: also be furnished with display circuit; The output terminal of described single-chip microcomputer and the input end of display circuit join.
9, a kind of automatic protection device that prevents gas accidents according to claim 5 is characterized in that: also be furnished with display circuit; The output terminal of described single-chip microcomputer and the input end of display circuit join.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055663 CN2783074Y (en) | 2004-12-13 | 2004-12-13 | Automatic protector for preventing gas accident |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055663 CN2783074Y (en) | 2004-12-13 | 2004-12-13 | Automatic protector for preventing gas accident |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2783074Y true CN2783074Y (en) | 2006-05-24 |
Family
ID=36768060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420055663 Expired - Fee Related CN2783074Y (en) | 2004-12-13 | 2004-12-13 | Automatic protector for preventing gas accident |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2783074Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354080B (en) * | 2007-07-27 | 2011-07-20 | 张跃 | Cut-off type power-off reset electric valve |
| CN104295770A (en) * | 2014-10-08 | 2015-01-21 | 张文学 | Emergency treatment mode and device for fuel gas accident |
-
2004
- 2004-12-13 CN CN 200420055663 patent/CN2783074Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354080B (en) * | 2007-07-27 | 2011-07-20 | 张跃 | Cut-off type power-off reset electric valve |
| CN104295770A (en) * | 2014-10-08 | 2015-01-21 | 张文学 | Emergency treatment mode and device for fuel gas accident |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |