CN2212723Y - Fast safety protector for multi-head gas set - Google Patents
Fast safety protector for multi-head gas set Download PDFInfo
- Publication number
- CN2212723Y CN2212723Y CN 94220618 CN94220618U CN2212723Y CN 2212723 Y CN2212723 Y CN 2212723Y CN 94220618 CN94220618 CN 94220618 CN 94220618 U CN94220618 U CN 94220618U CN 2212723 Y CN2212723 Y CN 2212723Y
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Abstract
The utility model relates to an accidental flameout fast protection and alarm device for a gas appliance by utilizing a flame probe and an electronic circuit. The utility model is composed of a burner flame detection circuit, a burner hand valve status detection circuit, a double delay circuit, a control logic circuit, a main gas valve opening and driving circuit, a main gas valve open keeping and closing driving circuit, an accidental flameout alarm circuit, a main gas valve, etc. The utility model is characterized in that the matching of the simple and original electronic circuit and the flame probe techniques are used for detecting whether the flame exists or not during the operation of the gas appliance and driving the main gas valve to act; only one main gas valve is used for controlling gas ducts of a plurality of burners. When the gas appliance is of accidental flameout, the gas can be fast closed automatically. The utility model has the advantages of simple circuit, low power expenditure in operation, and fast and reliable protective action. The utility model can be upgraded by little reconstruction on the manufacturing technique of a common gas appliance.
Description
The utility model relates to a kind of safety guard of combustion gas tool, and especially a kind of combustion gas tool accident extinguishing of flame probe that utilizes is protected and warning device fast.
The application of combustion gas tool is more and more universal, and its safeguard protection problem has also begun to come into one's own in recent years.Yet in the present product, a tool warning function that has and do not have automatic safety device is though the band protective device reaction that has is sensitive inadequately, practical value is little.
The purpose of this utility model is to overcome the shortcoming of prior art, provides a kind of and can report to the police rapidly and the combustion gas tool that can close source of the gas and simple in structure, low cost rapidly protective device fast and safely to combustion gas tool accident extinguishing.
The simple novel electronic circuit of the utility model utilization matches with the flame probe technique, and whether flame existed and survey when the combustion gas tool was worked.Working properly when the combustion gas tool, the combustion gas in the burner is burned, sends signal of telecommunication control main air valve through the utility model and continues to open, to burner supply combustion gas; When the combustion gas tool is worked, because of accidental cause makes fray-out of flame, the combustion gas in the burner can not be burned, and the utility model can send signal of telecommunication control main air valve and close in the time less than half second, stop to burner supply combustion gas, with the generation of accidents such as blast protection or personnel's poisoning.The speed that plays protection is greatly faster than present common thermojunction type flame-out protection device.
The utility model can only be controlled the air supply channel of one or more burners with a main air valve.Under normal circumstances, one or more burners can be respectively or enable simultaneously or cut out; When accident extinguishing appearred in any burner, the utility model all can send the signal at stop main air valve rapidly, prevented that combustion gas from overflowing.Like this, can save air valve having on the combustion gas tool of two above burners, make the utility model have more practicality.
The utility model also can be installed on the general gas tool of existing no safety precautions, and the agent structure that does not change the latter substantially can make it to become the combustion gas of safety guard tool.
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structure principle chart of the present utility model;
Fig. 2 is the circuit diagram of one of the utility model embodiment;
The another kind that Fig. 3 can adopt for the utility model has the electromagnetic gas valve profile of auto-lock function;
Fig. 4 is the schematic diagram that burner hand valve state-detection switch of the present utility model is installed one of embodiment;
Fig. 5 is two the schematic diagram that burner hand valve state-detection switch of the present utility model is installed embodiment;
Fig. 6 is three the schematic diagram that burner hand valve state-detection switch of the present utility model is installed embodiment.
With reference to Fig. 1, the utility model is by signal input circuit (1,2,3), control logic circuit (4), main air valve is opened drive circuit (5), main air valve is opened protection and is closed drive circuit (6), warning circuit (7) and main air valve (8) are formed, each signal input circuit (1,2,3) comprise a burner hand valve state detection circuit (9), a dual-delay circuit (10,11) and a burner flame detection circuit (12), wherein each dual-delay circuit comprises that a main air valve opens a delay circuit (10) and a spark delay circuit (11); Burner hand valve state detection circuit (9) is access to main air valve and opens delay circuit (10) and spark delay circuit (11); main air valve is opened delay circuit (10); the output of spark delay circuit (11) and burner flame detection circuit (12) is access to control logic circuit (4); the output of control logic circuit (4) is access to warning circuit (7) respectively; main air valve opens drive circuit (5) and main air valve is opened protection and closed drive circuit (6), and main air valve opens that drive circuit (5) and main air valve unlatching are protected and the output of closing drive circuit (6) is access to two coils of main air valve respectively.
The quantity of signal input circuit of the present utility model (1,2,3) can be not limited to three, burner quantity that can corresponding used combustion gas tool and being provided with.What burners a combustion gas tool contains, but how many utility model overlaps signal input circuit with regard to relative set.In every cover signal input circuit, burner hand valve state detection circuit (9) provides hand valve status signal, sends into control logic circuit (4) through dual-delay circuit (10,11).When having a burner under the not enabled state, the combustion gas tool started and igniting with the hand valve, control logic circuit (4) is opened drive circuit (5) to main air valve rapidly and is sent signal, make the latter provide firing current to main air valve (8), combustion gas flows to the burner of correspondence at once by main air valve and the hand valve opened.The main air valve start signal retention time that main air valve unlatching delay circuit (10) in the dual-delay circuit sends control logic circuit (4) is effectively opened back weak point as far as possible at the assurance main air valve, with the saving electricity consumption.If this burner is lighted a fire successfully, corresponding flame detecting circuit (12) promptly sends signal makes the unlatching of control logic circuit (4) control main air valve keep and close drive circuit (6) providing electric current that main air valve is held open.If the interior igniting of spark delay circuit (11) setting-up time in the dual-delay circuit is unsuccessful, corresponding flame detecting circuit (12) can send signal makes the unlatching of control logic circuit (4) control main air valve keep and close drive circuit (6) providing electric current to close main air valve.Arbitrary burner at first after the ignition operation, open again by other burner, and control logic circuit can not make main air valve that the starting current circulation is arranged again, to save electricity consumption.After one or more burner ignition operation, when wherein accident extinguishing appears in any or a plurality of burner, corresponding flame detecting circuit promptly sends signal and makes control logic circuit control main air valve rapidly to open and keep and close drive circuit providing electric current to close main air valve, and makes the controller logic circuit control accident extinguishing warning circuit (7) rapidly with sound and light alarm.
With reference to Fig. 2, but implement on one of embodiment of the present utility model double-burner gas cooker for Oalor gas.General double-burner gas cooker for Oalor gas is equipped with two burners and two hand valves, thus this example be provided with two the cover signal input circuits corresponding with it.Wherein K1 and K2 and line thereof are two burner hand valve state detection circuits, are installed in respectively on two hand valve positions.D2, D3, R2, R3, R4, R5, C2, C3 form a dual-delay circuit (10-1,11-1); D4, D5, R6, R7, R8, R9, C4, C5 form another dual-delay circuit (10-2,11-2); R1, C1 and flame probe A form burner flame detection circuit (12-1), and R10, C7 and flame probe B form burner flame detection circuit (12-2), and the characteristics of burner flame detection circuit (12) are: resistance is connected to power supply B
+And between the electric capacity, another pin ground connection or the power supply B of electric capacity
-G1, G2, G3, G4(i.e. door 1, door 2, door 3, door 4) be control logic circuit (4), adopt the CMOS gate circuit, available dog days' battery is made power supply.Main air valve (8) adopts the electromagnetic gas valve with two solenoids, comprises opening actuating coil L2 and opening hold-in winding L3; Main air valve is opened drive circuit (5) and is comprised R14, R15, R16, D8, Q4, Q5, Q6; Main air valve is opened and is kept and close drive circuit (6) comprising R12, R13, D7, Q2, Q3; Accident extinguishing warning circuit (7) comprises R11, R17, C8, Q1, L1, music integrated block IC 1, D9 and bipolar buzzing sheet J1.
With reference to Fig. 3, the utility model can also adopt a kind of self-locking electromagnetic gas valve different with used main air valve embodiment illustrated in fig. 2 as main air valve.When needs were opened main air valve, main air valve is opened drive circuit moved down magnetic core (14) to the magnetic field that solenoid (13) provides enough electric currents to produce, and drives thimble (15) and moves down, and promotes main valve pin (17) and moves down together with plug (18), and air valve is open-minded.Spring (22) promotion self-locking needle (19) moves to right simultaneously, blocks the breach of main valve pin, even after making that main air valve unlatching drive circuit stops output current, it is open-minded that air valve still keeps.When needs were closed main air valve, main air valve was opened and is kept and close drive circuit to the magnetic field that solenoid (24) provides enough electric currents to produce magnetic core (25) being moved to left.Drive thimble (26) and move to left, promotion self-locking needle (19) moves to left and no longer blocks the breach of main valve pin (17), and spring (23) promotes main valve pin (17) together with moving on the plug (18), makes the air valve closure.
Below be three kinds of simple and practical embodiments of the utility model install combustion device hand valve state-detection switch on general gas hand valve: with reference to Fig. 4, microswitch (29) is installed on the thin gusset plate (31), thin gusset plate (31) utilizes the position combination of the original installation screw of manual air valve (30), and thin gusset plate can be used iron, stainless steel, aluminium, copper, plastic or other material manufacturing.Knob (27) need be made a convex edge, and when manually opened air valve, the machine control spring leaf (28) that the convex edge promotes microswitch (29) makes switch motion.
With reference to Fig. 5, same Fig. 4 of mount scheme of microswitch (28) and thin gusset plate, but do not need knob (27) to make the convex edge.Install a hard thin slice (32) on the axle additional manual revolving of air valve (30), when manually opened air valve, the machine control spring (28) that hard thin slice (32) promotes microswitch (29) makes switch motion.
With reference to Fig. 6, same Fig. 4 of mount scheme of microswitch (29) and thin gusset plate (31), but the installation site of microswitch (29) is far away from knob (27), installs a spring thimble (33) additional on the combustion gas tool panel between the two, and knob (27) need be made a convex edge.Spring thimble (33) is compressor unit control spring leaf (28) not at ordinary times, and when manually opened air valve, the machine control spring leaf (28) that the convex edge of knob (27) promotes spring thimble (32) compressing microswitch (29) makes switch motion.
The utility model circuit is simple, and the components and parts of employing are buied easily, power consumptive province during operation, and safeguard protection is reliable rapidly.Can on general gas tool production technology, adopt the utility model to do a small amount of the transformation, can make the updating and upgrading of a product.
Claims (2)
1, a kind of bull combustion gas tool is protective device fast and safely, it is characterized in that by signal input circuit (1,2,3), control logic circuit (4), main air valve is opened drive circuit (5), main air valve is opened protection and is closed drive circuit (6), warning circuit (7) and main air valve (8) are formed, each signal input circuit (1,2,3) comprise a burner hand valve state detection circuit (9), a dual-delay circuit (10,11) and a burner flame detection circuit (12), wherein each dual-delay circuit comprises that a main air valve opens a delay circuit (10) and a spark delay circuit (11); Burner hand valve state detection circuit (9) is access to main air valve and opens delay circuit (10) and spark delay circuit (11); main air valve is opened delay circuit (10); the output of spark delay circuit (11) and burner flame detection circuit (12) is access to control logic circuit (4); the output of control logic circuit (4) is access to warning circuit (7) respectively; main air valve opens drive circuit (5) and main air valve is opened protection and closed drive circuit (6), and main air valve opens that drive circuit (5) and main air valve unlatching are protected and the output of closing drive circuit (6) is access to two coils of main air valve respectively.
2, bull combustion gas tool according to claim 1 protective device fast and safely is characterized in that burner flame detection circuit (12) is made up of resistance, electric capacity and flame probe, and resistance is connected to power supply B
+And between the electric capacity, another pin earth connection or the power supply B of electric capacity
-
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94220618 CN2212723Y (en) | 1994-09-15 | 1994-09-15 | Fast safety protector for multi-head gas set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94220618 CN2212723Y (en) | 1994-09-15 | 1994-09-15 | Fast safety protector for multi-head gas set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2212723Y true CN2212723Y (en) | 1995-11-15 |
Family
ID=33835164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94220618 Expired - Fee Related CN2212723Y (en) | 1994-09-15 | 1994-09-15 | Fast safety protector for multi-head gas set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2212723Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387413B (en) * | 2007-09-10 | 2012-08-15 | 刘小勇 | Gas automatic protection apparatus and auto/semi-automatic cooking device |
| CN104214402A (en) * | 2014-08-07 | 2014-12-17 | 北京市燃气集团有限责任公司 | Household gas pipeline safety control valve and method based on flame monitoring |
| CN104976646A (en) * | 2015-07-10 | 2015-10-14 | 广东美的厨房电器制造有限公司 | Gas stove and control method and system of gas stove |
| CN104976644A (en) * | 2015-07-10 | 2015-10-14 | 广东美的厨房电器制造有限公司 | Gas stove and control method of gas stove |
| CN104976643A (en) * | 2015-07-10 | 2015-10-14 | 广东美的厨房电器制造有限公司 | Gas stove and control method of gas stove |
| CN104976645A (en) * | 2015-07-10 | 2015-10-14 | 广东美的厨房电器制造有限公司 | Gas stove and control method of gas stove |
| CN105042646A (en) * | 2015-06-11 | 2015-11-11 | 杭州强邦精密机械电器有限公司 | Intelligent-cooking-control proportional valve kitchen range system and control method |
| WO2017008724A1 (en) * | 2015-07-10 | 2017-01-19 | 广东美的厨房电器制造有限公司 | Gas cooker and method for controlling gas cooker |
-
1994
- 1994-09-15 CN CN 94220618 patent/CN2212723Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387413B (en) * | 2007-09-10 | 2012-08-15 | 刘小勇 | Gas automatic protection apparatus and auto/semi-automatic cooking device |
| CN104214402A (en) * | 2014-08-07 | 2014-12-17 | 北京市燃气集团有限责任公司 | Household gas pipeline safety control valve and method based on flame monitoring |
| CN105042646A (en) * | 2015-06-11 | 2015-11-11 | 杭州强邦精密机械电器有限公司 | Intelligent-cooking-control proportional valve kitchen range system and control method |
| CN104976646A (en) * | 2015-07-10 | 2015-10-14 | 广东美的厨房电器制造有限公司 | Gas stove and control method and system of gas stove |
| CN104976644A (en) * | 2015-07-10 | 2015-10-14 | 广东美的厨房电器制造有限公司 | Gas stove and control method of gas stove |
| CN104976643A (en) * | 2015-07-10 | 2015-10-14 | 广东美的厨房电器制造有限公司 | Gas stove and control method of gas stove |
| CN104976645A (en) * | 2015-07-10 | 2015-10-14 | 广东美的厨房电器制造有限公司 | Gas stove and control method of gas stove |
| WO2017008724A1 (en) * | 2015-07-10 | 2017-01-19 | 广东美的厨房电器制造有限公司 | Gas cooker and method for controlling gas cooker |
| CN104976646B (en) * | 2015-07-10 | 2018-09-14 | 广东美的厨房电器制造有限公司 | The control method and system of gas-cooker and gas-cooker |
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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 |