CN2578699Y - Gas safety controller - Google Patents
Gas safety controller Download PDFInfo
- Publication number
- CN2578699Y CN2578699Y CN 02252326 CN02252326U CN2578699Y CN 2578699 Y CN2578699 Y CN 2578699Y CN 02252326 CN02252326 CN 02252326 CN 02252326 U CN02252326 U CN 02252326U CN 2578699 Y CN2578699 Y CN 2578699Y
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- CN
- China
- Prior art keywords
- valve
- gas
- links
- circuit
- angle valve
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- 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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- Feeding And Controlling Fuel (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The utility model discloses a civil gas safety controller which comprises an electric control valve with a combustible gas detecting controller, wherein, the electrical control valve is composed of an angle valve arranged in a casing and a split pusher electromagnetic valve arranged on one side of a valve handle. When gas is leaked, the electromagnetic valve is instantly energized to shut down the angle valve in a rotary mode, and then the electromagnetic valve is powered off and reset by a spring; the angle valve can be only opened manually to prevent different misoperation. The utility model has the advantages of simple structure, safety, instant trigger control and micro power consumption.
Description
Technical field
The utility model relates to a kind of domestic gas safety device.
Background technology
Fuel gas has obtained using widely in daily life, as gas kitchen ranges, heating installation, shower etc., because gas combustion is incomplete or leakage brings very big harm to lives and properties.Though the gas combustion apparatus that has is provided with the gas alarm control device, it can only alarm and can not cut off source of the gas, thereby can not solve the gas safe problem from root.
Summary of the invention
Task of the present utility model is a kind of gas safe control device that can fundamentally guarantee gas safe of design.
Technical scheme is as follows:
A kind of gas safe control device, comprise that one is installed in the electrically-controlled valve that has the fuel gas detection control apparatus on the source of the gas, it is characterized in that described electrically-controlled valve comprises that one is installed in the angle valve in the housing, be fixed on the valve shaft of angle valve can the manual unlocking angle valve valve handle, having in a side of valve handle can be by the push-down magnetic valve of spring reset, when its push rod stretches out and valve handle apical grafting and angle valve can being closed; Described fuel gas detection control apparatus is a kind ofly can be made solenoid-driven valve handle rotation and closed the device of angle valve when fuel gas overflows by what combustible gas spill over testing circuit, amplification control circuit and drive circuit constituted.
Described signal deteching circuit is one to be connected across the combustible gas sensor on the two poles, and described output amplification control circuit is a kind of basic amplification control circuit that is made of triode and relay.
Described drive circuit comprises an electric capacity, the negative pole of the one utmost point and driving power links, the center contact of one group of single-pole double throw contact of another utmost point and described relay links, two other contact of this single-pole double throw contact then links with an end of the coil of the anodal and described magnetic valve of driving power respectively, and the other end of this coil then links with the negative pole of driving power.
The utlity model has simple in structure, power saving, time-delay charging, instantaneous triggering can malfunctions, the advantage of dependable performance, can fundamentally prevent gas leakage.
Description of drawings
Fig. 1 is a frame for movement schematic diagram of the present utility model;
Fig. 2 is an electrical schematic diagram of the present utility model.
The specific embodiment
A kind of gas safe control device comprises that one is installed in the electrically-controlled valve that has the fuel gas detection control apparatus on the combustible gas supply air line.This electrically-controlled valve comprise specifically one be installed in angle valve 2 in the housing 1, be fixed on the valve shaft 3 of angle valve 2 can manual unlocking angle valve 2 shaft-like valve handle 4.In a side of valve handle 4 the push rod 7 formula magnetic valves 5 that can be resetted by spring 6 are arranged, when its push rod 7 stretches out and valve handle apical grafting and angle valve can being closed.The fuel gas detection control apparatus is a kind ofly can be made magnetic valve 5 drive valve handles 4 rotations when fuel gas overflows and closed the device of angle valve 2 by what combustible gas spill over testing circuit, amplification control circuit and drive circuit constituted.
Signal deteching circuit comprises that one is connected across the combustible gas sensor QC on power supply DC1 the two poles of the earth, and the output amplification control circuit is a kind of basic amplification control circuit that is made of triode BG and relay J.As shown in Figure 2: the filament of gas (air-sensitive) sensor QK is connected across on the dc source DC1 through resistance R 1, its signal output part links through the base stage of current-limiting resistance R3 and triode BG, the grounded emitter of triode BG links with the positive pole of power supply DC1 behind the collector series relay J and has constituted the output amplification control circuit.Resistance R 2, potentiometer RW are used for adjusting control sensitivity.
Also be connected with alarm AL on the output of gas sensor QC.Alarm AL can be a sound, also can be sound, light combination, and its circuit is multifarious, and prior art has various circuit optional, also has various finished products to choose, so repeat no more.
Drive circuit comprises a capacitor C, the negative pole of the one utmost point and driving power DC2 links, the center contact J0 of one group of single-pole double throw contact of its another utmost point and described relay J links, two other contact J1, the J2 of this single-pole double throw contact then links with an end a of the coil of the positive pole of driving power and magnetic valve VA respectively, and the other end b of this coil then links with the negative pole of driving power.The advantage of utilizing capacitor discharge to drive magnetic valve is time-delay charging, instantaneous triggering, can malfunction, dependable performance.
When gas leakage took place, the capacitor C discharge made magnetic valve 5 snap actions and the nationality push rod is closed angle valve 2, had only manual rotary valve handle 4, angle valve 2 is opened, thereby fundamentally prevented the generation of gas leakage accident.Discharge rear push-rod 7 resets under spring 6 effects, and angle valve 2 is in closed condition; During normal condition, relay J dead electricity, capacitor C are in the charging holding state.
Claims (4)
1. gas safe control device, comprise that one is installed in the electrically-controlled valve that has the fuel gas detection control apparatus on the source of the gas, it is characterized in that described electrically-controlled valve comprises that one is installed in the angle valve (2) in the housing (1), be fixed on the valve shaft (3) of angle valve (2) can manual unlocking angle valve (2) valve handle (4), in a side of valve handle (4) the push-down magnetic valve (5) that can be resetted by spring (6) is arranged, its push rod (7) is when stretching out and valve handle (4) apical grafting and angle valve (2) can being closed; Described fuel gas detection control apparatus is a kind ofly can make magnetic valve (5) drive valve handle (4) rotation when fuel gas overflows and the device of closing angle valve (2) by what combustible gas spill over testing circuit, amplification control circuit and drive circuit constituted.
2. gas safe control device according to claim 1, it is characterized in that described signal deteching circuit is one to be connected across the combustible gas sensor (QC) on power supply (DC1) the two poles of the earth, described output amplification control circuit is a kind of basic amplification control circuit that is made of triode (BG) and relay (J).
3. gas safe control device according to claim 1, it is characterized in that described drive circuit comprises an electric capacity (C), the negative pole of the one utmost point and driving power (DC2) links, the center contact (J0) of one group of single-pole double throw contact of another utmost point and described relay (J) links, two other contact of this single-pole double throw contact (J1, J2) then links with the end (a) of the coil of the anodal and described magnetic valve (VA) of driving power respectively, and the other end of this coil (b) then links with the negative pole of driving power.
4. according to claim 1,2 or 3 described gas safe control device, it is characterized in that on described gas detection control apparatus, being connected with alarm (AL).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02252326 CN2578699Y (en) | 2002-09-05 | 2002-09-05 | Gas safety controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02252326 CN2578699Y (en) | 2002-09-05 | 2002-09-05 | Gas safety controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2578699Y true CN2578699Y (en) | 2003-10-08 |
Family
ID=33721845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02252326 Expired - Fee Related CN2578699Y (en) | 2002-09-05 | 2002-09-05 | Gas safety controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2578699Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968232A (en) * | 2010-10-27 | 2011-02-09 | 蒋清校 | Gas stove pan-overflowing automatic flameout device |
-
2002
- 2002-09-05 CN CN 02252326 patent/CN2578699Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968232A (en) * | 2010-10-27 | 2011-02-09 | 蒋清校 | Gas stove pan-overflowing automatic flameout device |
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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 |