CN2386286Y - Safety gas stop valve for domestic pipelined gas - Google Patents
Safety gas stop valve for domestic pipelined gas Download PDFInfo
- Publication number
- CN2386286Y CN2386286Y CN 99234750 CN99234750U CN2386286Y CN 2386286 Y CN2386286 Y CN 2386286Y CN 99234750 CN99234750 CN 99234750 CN 99234750 U CN99234750 U CN 99234750U CN 2386286 Y CN2386286 Y CN 2386286Y
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- CN
- China
- Prior art keywords
- valve
- gas
- valve body
- larynx
- safety
- 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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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model relates to a safety gas stop valve for a domestic gas pipeline. A valve cavity of the valve is formed by connecting a valve body, a valve cover and an adjusting screw. A side gas inlet in which a choking throat is arranged on the valve body. The outlet site of the choking throat is provided with an expanding chamber, and the upper part of the center of the valve body is provided with a tapered ejector nozzle. The periphery of the ejector nozzle is provided with an annular permanent magnet. A decompression drainage mouth is arranged in a gas outlet, and the valve cover is provided with an annular pressure grade adjusting screw of which the center is provided with an elastic resetting drawing rod inserted into the valve cavity. The lower end of the resetting drawing rod is arranged in a coaxial mode with an armature, a rubber closing plate and a rubber diaphragm. When a pipeline is stopped supplied with the gas, or the value of pressure is lower than a specified value, the safety gas stop valve can automatically switch off a gas circuit. When a rubber pipe between the gas outlet and a range is accidentally shed, or fire occurs, the safety gas stop valve can automatically switch off the gas circuit.
Description
The utility model belongs to the pipeline valve field, relates to a kind of can stopping the supple of gas or steam and sebific duct automatically shuts down the valve of gas circuit when coming off to the home pipeline combustion gas.
In daily life, the pipeline gas accident is died and gaseous-pressure when phenomenon such as exceeding standard and take place.When accident is died, people usually owing to not at the scene or carelessness forget Shuttoff Valve, after pipeline recovered air feed in this case, combustion gas was just released very soon.In addition, when gaseous-pressure exceeds standard, cause sebific duct to come off easily or daily life in make the sebific duct accidental because of carelessness and catch fire and make sebific duct that burning etc. take place all can to cause accidents such as personnel's gas poisoning or breaking out of fire.
The purpose of this utility model is to overcome the existing in prior technology problem, designs the domestic gas safety ACV Air Cut Valve that a kind of principle is reliable, simple and practical, be convenient to promote.This ACV Air Cut Valve can automatically shut down gas circuit after gas pipeline is stopped the supple of gas or steam, and when sebific duct comes off, during the sebific duct accidental ignition, automatically shuts down gas circuit.
The home pipeline gas safe ACV Air Cut Valve that designs in order to realize the foregoing invention purpose has a hollow valve pocket that is made of valve body and the butt joint of can regulate valve gap.Valve body is used for being connected with gas pipeline and kitchen range, and side is a suction port on it, and a side is the air outlet, wherein is provided with superpressure throttling larynx in the suction port, and its outlet port is provided with to expand puts the chamber.The top at valve body center has a conical nozzle, is provided with an annular permanent magnet in the periphery of spout.The air outlet is provided with the decompression relief port.Valve gap is provided with an annular pressure grade and regulates screw thread, and there is an elastic reset pull bar that inserts valve pocket at its center, and coaxial armature, rubber shrouding and the rubber membrane of being provided with in the lower end of reset lever is used for valve pocket is divided into two Room up and down.Last chamber is identical with atmosphere, and following chamber is a fuel gas path.This valve in the course of the work, the action of reset lever is by five kinds of active forces decisions such as gravity of the elastic force of the gaseous-pressure that flows in the elastic force of the magnetic force of permanent magnet, pull-rod spring, the lower valve chamber, rubber membrane and body of rod glued membrane etc.Five equilibrium of forces under normal air feed situation, the armature in the valve pocket is placed in and leaves the permanent magnet end.Gas enters from suction port, by throttling larynx, conical nozzle, decompression relief port and air outlet to the kitchen range air feed.When suction port is stopped the supple of gas or steam or pressure when being lower than authorized pressure, owing to be subjected to the magnetic force of magnet, the restoring force of pull-rod spring, the restoring force of rubber membrane and the effect of gravity, armature is held by magnet, and the rubber shrouding is sealed suction port simultaneously, thereby realizes that gas pipeline is automatically by this valve breakdown gas circuit.When generation sebific duct accidental or sebific duct catch fire between air outlet and kitchen range, air outlet back pressure moment undergos mutation, flow moment increases and throttling larynx place flow in the suction port is constant, combustion gas descends to the pressure of valve wall, and the restoring force sum of the restoring force of the magnetic force of magnet, spring and glued membrane is big in the pressure of combustion gas to glued membrane at this moment.Armature is held by magnet, and blast tube is turned off.When armature was held by magnet, the pressure of pipeline gas only had active force to the shrouding section of rubber membrane bottom, and less because of its area, its active force is much smaller than magnet magnetic force, so valve can not opened automatically.
Below with reference to accompanying drawing the utility model is described further.
Fig. 1 is the cross-sectional view of a specific embodiment of the utility model.
As shown in the figure, the valve body 15 that suction port 9 and air outlet 17 are arranged on it is one to be serially connected in the shelly object on the gas pipeline, and it is interconnected to constitute the valve pocket of ACV Air Cut Valve with following spill valve gap 1.Valve gap central authorities have an annular adjusting screw 7 to be threaded with loam cake.Elastic reset pull bar 6 is the manually operated type valve rod that has spring 8 on the bar wall, and it transfers the screw center hole to insert in valve pocket from joint.Be respectively equipped with rubber shrouding 12 rubber membranes 2 and armature 3 in the reset lever bottom, wherein rubber membrane 2 is divided into up and down two chamber I and II with valve body.The inner end of suction port is provided with an arc throttling larynx 11, and the outlet of throttling larynx is put chamber 13 for expanding, and its top is the passage of conical nozzle 14.Annular permanent magnet 10 is located at the passage outside of spout 14.17 inner end is provided with relief port 16 in the air outlet, and 5 is the spiracle of last valve chamber among the figure.
The gas-entered passageway of valve body described in the utility model can be by artificial the opening or cutting off of reset lever.
Claims (1)
- A kind of home pipeline gas safe ACV Air Cut Valve, have one by valve body (15) and valve gap (1) and adjusting screw (7), the hollow valve pocket valve body (15) that connects and composes has air inlet restriction larynx (11), the relief port of giving vent to anger (16), it is characterized in that valve body one side air inlet, be provided with arc throttling larynx (11) in the suction port, the outlet end of throttling larynx has an expansion to put chamber (13), gas-entered passageway is through suction port (9), throttling larynx (11), expansion is put chamber (13) and is turned to 90 ° upwards to enter valve chamber II by spout (14), be provided with decompression relief port (16) in the air outlet, valve gap is provided with pressure rating and regulates screw thread (7), and reset lever (6) is inserted upward valve chamber in the middle of adjusting screw (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234750 CN2386286Y (en) | 1999-07-01 | 1999-07-01 | Safety gas stop valve for domestic pipelined gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234750 CN2386286Y (en) | 1999-07-01 | 1999-07-01 | Safety gas stop valve for domestic pipelined gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2386286Y true CN2386286Y (en) | 2000-07-05 |
Family
ID=34022847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99234750 Expired - Fee Related CN2386286Y (en) | 1999-07-01 | 1999-07-01 | Safety gas stop valve for domestic pipelined gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2386286Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425894C (en) * | 2004-10-25 | 2008-10-15 | 威海戥同测试设备有限公司 | Pressure balancing valve |
-
1999
- 1999-07-01 CN CN 99234750 patent/CN2386286Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425894C (en) * | 2004-10-25 | 2008-10-15 | 威海戥同测试设备有限公司 | Pressure balancing valve |
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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 |