CN2314191Y - Electromagnetic safety valve for household gas source - Google Patents
Electromagnetic safety valve for household gas source Download PDFInfo
- Publication number
- CN2314191Y CN2314191Y CN 97242219 CN97242219U CN2314191Y CN 2314191 Y CN2314191 Y CN 2314191Y CN 97242219 CN97242219 CN 97242219 CN 97242219 U CN97242219 U CN 97242219U CN 2314191 Y CN2314191 Y CN 2314191Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- gas
- electromagnetic
- outlet
- 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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- Magnetically Actuated Valves (AREA)
Abstract
The utility model relates to an electromagnetic safety valve for a household gas source matched with an urban gas alarm. The utility model comprises a sealed valve cavity which is sealed and covered by a rubber diaphragm and is provided with a gas inlet and a gas outlet; a movable valve core which is in sealing match with a valve seat of the gas outlet is arranged on the inner side of the rubber diaphragm; the movable valve core is connected with an electromagnetic driving valve rod outside the valve cavity. The valve seat is a V-shaped valve seat; the movable valve core is a rubber V-shaped table body connected with the rubber diaphragm into the integration. Because the circle V-shaped face seal can be adopted, a permanent magnet is cancelled, the sealing performance is increased, the electromagnetic power is decreased, the size is reduced, and the manufacturing cost is reduced.
Description
The utility model relates to a kind of electromagnetic valve, particularly a kind of domestic gas electromagnetic valve that is used with the gas alarm.
Existing domestic gas safety valve, especially for the safety valve of urban duct combustion gas, its major function is can close automatically when pipeline gas is under-voltage.Disclosed as Chinese patent CN2088999 is exactly this class valve.The basic structure of this type of safety valve comprises a valve pocket by the rubbery membrana dermalis capping, and the valve pocket air outlet is that vertical direction is arranged, and vertical with suction port.The valve seat of air outlet is that close mode is sealed on the plane, and its periphery is provided with a permanent magnet.Permanent magnet is to the suction of the ferromagnetism valve core plate on the rubbery membrana dermalis pressure greater than combustion gas when under-voltage, and valve core plate is inhaled on valve seat planes, thereby outlet passageway is cut off.Also have the people to set up electromagnetic coil on the basis of this type of valve, when gas leakage took place, alarm sent signal, and to the electromagnetic coil energising, the valve rod in the electromagnetic coil was moved down, and promoted valve core plate and pressed to valve seat planes, and outlet passageway is cut off.All there is a common problem in above-mentioned safety valve, is exactly the poorly sealed of valve core plate and valve base chamber.One of reason is: owing to be provided with permanent magnet, so the time is long slightly, some ferromagnetic sundries of meeting sorption on its valve seat, all the more so when particularly new gas pipeline uses; Formerly therefore two be: the sealing surface of valve seat and valve core plate is the plane, and the suction of permanent magnet is limited.
The purpose of this utility model is improved existing safety valves for gas, and provides a kind of fuel gas alarm that aims to be used, and the domestic gas electromagnetic valve of good sealing effect.
The solution that realizes the utility model purpose is: the domestic gas electromagnetic valve that is provided comprises a sealing valve pocket with inlet, outlet by the rubbery membrana dermalis capping, the inboard of rubbery membrana dermalis is provided with a movable valve plug that cooperates with the air outlet valve base sealing, and this movable valve plug links to each other with valve pocket Electromagnetic Drive valve rod outward again.Improvements of the present utility model are that said valve seat is the V-shaped groove valve seat between gas-entered passageway and outlet passageway.Said movable valve plug is a rubber V-arrangement stage body that is connected as a single entity with rubbery membrana dermalis and matches with the V-shaped groove valve seat.If the generation gas leakage, then alarm sends signal, makes the electromagnetic coil energising of safety valve, attracts valve rod to move down, and then V-arrangement platform shape spool is pushed in the valve seat, cuts off the passage between inlet, outlet.During recovery, by valve rod spool is mentioned, be in state of suspension at the effect lower valve core of gaseous-pressure, safety valve can normal air feed.
The utility model has been cancelled the permanent magnet in the existing safety valve, and adopts circle V-arrangement face seal mode to cut off gas circuit, thereby can reduce electromagnetic power, and reduced volume reduces manufacture cost.In addition owing to having adopted the V-arrangement face seal, so Security of the present utility model and reliability are higher.
Below in conjunction with accompanying drawing content of the present utility model is illustrated.
Accompanying drawing is the utility model embodiment's a structural drawing.
As shown in the figure: valve body is divided into upper and lower two-part, lower half portion of valve body has an airtight valve pocket 3 that is surrounded by housing 1 and rubbery membrana dermalis 2, its bottom is provided with gas-entered passageway 4 and outlet passageway 5, this inlet, outlet passage is a straight-through tube that crosses valve pocket 3, V-shaped groove valve seat 6 is positioned at its middle part, and passes through mutually with the inlet, outlet channel vertical.This straight-through inlet, outlet passage not only is convenient to processing, and resistance is also less.There is the rubber spool 7 of a V-arrangement stage body shape in the center portion of rubbery membrana dermalis 2, and it is just in time facing to valve seat 6.The upper end of spool 7 is connecting firmly valve rod 8, and valve rod 8 passes and is positioned at the electromagnetic coil 9 that valve block upper half is divided, and stretches out outside the valve body.Also connecting firmly an armature card that matches with electromagnetic coil 10 on the valve rod 8.During normal air feed, spool 7 is in state of suspension.When gas leakage took place, alarm sent instruction, and electromagnetic coil 9 attracts armature 10, and drove valve rod 8 and move down, and spool 7 is sealed with valve seat 6 combine, and outlet passage is cut off.Even electromagnetic coil 9 outages this moment, because the frictional force between rubber spool 7 and the V-shaped groove valve seat 6 is bigger, spool 7 can not backed down by the pressure gas of gas-entered passageway.Could recover air feed when having only with portable valve rod 8.In addition, also have a bleeder port 11 on the tube wall of outlet passageway 5, the gas of valve pocket can be discharged after being used for valve and closing.
The utility model is not limited only to a kind of form of this example, and gas-entered passageway and outlet passageway can be on same straight lines, as can be vertical mutually or one high and one low.
Claims (2)
1, a kind of domestic gas electromagnetic valve, comprise a sealing valve pocket (3) with inlet, outlet by rubbery membrana dermalis (2) capping, the inboard of rubbery membrana dermalis (2) is provided with a movable valve plug (7) that is sealed and matched with air outlet valve seat (6), this movable valve plug links to each other with valve pocket Electromagnetic Drive valve rod (8) outward again, it is characterized in that said valve seat (6) is the V-shaped groove valve seat that is positioned between gas-entered passageway (4) and the outlet passageway (5).Said movable valve plug (7) is a rubber V-arrangement stage body that is connected as a single entity with rubbery membrana dermalis (2) and matches with V-shaped groove valve seat (6).
2, electromagnetic valve as claimed in claim 1 is characterized in that said inlet, outlet passage (4,5) is a straight-through tube that crosses valve pocket (3), and V-shaped groove valve seat (6) is positioned at its middle part, and passes through mutually with the inlet, outlet channel vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242219 CN2314191Y (en) | 1997-12-26 | 1997-12-26 | Electromagnetic safety valve for household gas source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242219 CN2314191Y (en) | 1997-12-26 | 1997-12-26 | Electromagnetic safety valve for household gas source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2314191Y true CN2314191Y (en) | 1999-04-14 |
Family
ID=33951522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97242219 Expired - Fee Related CN2314191Y (en) | 1997-12-26 | 1997-12-26 | Electromagnetic safety valve for household gas source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2314191Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033644A (en) * | 2014-06-14 | 2014-09-10 | 国网四川省电力公司双流县供电分公司 | Electromagnetic valve with function of precisely controlling sealing process |
| CN107763289A (en) * | 2017-10-25 | 2018-03-06 | 广东顺德高瓴科技有限公司 | A kind of magnetic valve for powder solid particle |
| CN112377671A (en) * | 2020-11-12 | 2021-02-19 | 中国空间技术研究院 | Miniature solenoid valve and miniature pneumatic system |
-
1997
- 1997-12-26 CN CN 97242219 patent/CN2314191Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033644A (en) * | 2014-06-14 | 2014-09-10 | 国网四川省电力公司双流县供电分公司 | Electromagnetic valve with function of precisely controlling sealing process |
| CN107763289A (en) * | 2017-10-25 | 2018-03-06 | 广东顺德高瓴科技有限公司 | A kind of magnetic valve for powder solid particle |
| CN112377671A (en) * | 2020-11-12 | 2021-02-19 | 中国空间技术研究院 | Miniature solenoid valve and miniature pneumatic system |
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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 |