CN2297609Y - Guide type pressure-reducing and pressure-stabilizing valve - Google Patents
Guide type pressure-reducing and pressure-stabilizing valve Download PDFInfo
- Publication number
- CN2297609Y CN2297609Y CN 97206744 CN97206744U CN2297609Y CN 2297609 Y CN2297609 Y CN 2297609Y CN 97206744 CN97206744 CN 97206744 CN 97206744 U CN97206744 U CN 97206744U CN 2297609 Y CN2297609 Y CN 2297609Y
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Abstract
The utility model relates to a guide type pressure-reducing and pressure-stabilizing valve which is composed of master parts and mating parts, wherein the master parts are a needle valve, a main valve and a guide valve, and the fitting parts are a pressure meter, a ball valve, an angle head and connecting pipes. The needle valve is connected in series to a valve cap cavity of the main valve via the connecting pipes form a water inlet cavity of the main valve, and then, the guide valve is connected in series to a water outlet cavity of the main valve via the connecting pipes from the valve cap cavity. The utility model is characterized in that a filtering mesh cover 9 is arranged in the water inlet cavity in the center of a main valve center axis, and a work surface of a valve clack 6 is connected with a circular rubber gasket 7 of which inner ring edge is an O ring. The utility model can realize the use effects of pressure reduction, pressure stabilization, clean water quality and good sealing property.
Description
The utility model relates to a kind of reduction valve, particularly a kind of leading type decompression venting valve, a kind of device in the water supply system in the genus building construction.
Traditional decompression subregion water tank has been saved in water supply in the high-rise building, the secondary pollution and the moisturizing noise at water source have been avoided, proportional pressure-reducing valve has substituted decompression subregion water tank, realize that pressure drop stage ensures water supply, having supply water convenient, take up an area of advantages such as little, noise free and less investment, but also exist when the import variation in water pressure, or the outlet water yield can cause the unsettled defective of outlet hydraulic pressure when increasing.
The purpose of this utility model discloses a kind of leading type decompression venting valve can realize exporting stable water pressure, clean water quality, advantages such as good airproof performance.
The utility model is to realize like this, the leading type decompression venting valve often is by needle value, main valve, pilot valve is a main part, pressure gauge, ball valve, elbow and connecting tube are that accessory is formed, the form of its connection is to pass through connecting tube from the main valve water-inlet cavity, be connected in series the valve cover cavity that is connected to main valve behind the needle value, pick out pilot valve of serial connection by connecting tube from lid chamber, chamber again, the main valve water chamber is led in adapter, general leading type decompression venting valve, its main valve is by valve gap 1, valve body 11, flap 6, axle 3, more than ten zero reduction valve of forming such as rubber film 4 grades, before valve, connect and in the siphunculus filtrating equipment is set or takes other forms that filter screen is installed, obtain clean water with it, flap valve in the main valve is when valve switching work in addition, because defective causes that the bad even sealing gasket of valve seal is subjected to the influence of hydraulic pressure flap that comes off to make the functional failure of valve on the rubber seal mat structure of flap.Of the present utility model being characterised in that is provided with a filtering screen 9 in the water-inlet cavity at main valve axle center, the ring-shaped rubber sealing gasket 7 of an inner ring along boss is set on the working surface of flap 6, filtering screen 9 is the drum shape guard 1 of uncovered of the no end, respectively there is a stiffening ring 2 inboard on upper edge and end opening edge, suitable for reading and the main valve turnover water cavity lower plane with one voice of cover cooperates, end opening cooperates fixed location with bottom flange 10, the form of rubber gasket 7 be plane pad and inner ring along for O shape is enclosed the Gask-O-Seal of combination, a toroidal cavity 12 that is used to block O-ring seals is respectively arranged on the junction plane of flap 6 and press table 8.Working principle of the present utility model is as follows, water is entered by the left end of main valve, after valve inner filtration guard filters, by valve port and be subjected to the throttling restriction of flap, flow to outlet, promptly passed through decompression, another Lu Shuijing needle value 1 enters in the main valve valve cover cavity, by one deck rubber film 4 valve gap and main valve water chamber is separated.Enter the main valve water chamber by the water that flows out in the valve cover cavity through pilot valve 3, main valve water chamber pressure is on a declining curve when the water of useful family, downstream, pilot valve is opened automatically, because the needle value aperture is little, only open half-turn to 2 circle, play throttling action, the water yield of emitting in the valve cover cavity substantially exceeds the water that enters like this, build-up of pressure reduces, thrust to flap 6 in the valve cover cavity reduces, and the main valve opening increases, and the water yield that enters the main valve outlet increases, outlet pressure is replenished, still maintain on the pressure spot of pilot valve setting, if the downstream water consumption reduces, outlet pressure is in rising trend, pilot valve closes a little bit smaller automatically, the interior water yield of valve cover cavity is run off reduce, cause increased pressure, main valve flap 6 just closes a little bit smaller, the main valve flow reduces, and the water pressure of outlet is still maintained on the pressure spot of pilot valve setting.If the main valve flow is zero, then pilot valve cuts out, and main valve valve cover cavity pressure increases, and main valve is also closed.The maximum characteristics of piloted reducer are voltage stabilizings, and intake pressure changes sometimes, through reducing pressure back discharge pressure energy all-the-time stable on the pressure spot of being set up.
Accompanying drawing 1 is the utility model structure principle chart.
Accompanying drawing 2 is the utility model main valve structural drawing.
Accompanying drawing 3 is a filtering screen of the present utility model.
Accompanying drawing 4 is a rubber gasket of the present utility model.
1 is needle value among accompanying drawing 1 figure, and 2 is main valve, and 3 is pilot valve, 1 is valve gap among accompanying drawing 2 figure, and 2 is spring, and 3 is axle, 4 is rubber film, and 5 is top board, and 6 is flap, 7 is sealing gasket, and 8 is press table, and 9 is filtering screen, 10 is bottom flange, and 11 is valve body, and 12 is toroidal cavity, 1 is filtering screen among Fig. 3 figure, and 2 is stiffening ring, and the rubber gasket 7 of accompanying drawing 4 figure is Gask-O-Seals that plain cushion and O shape circle combine.
The utility model can save a filter on the water supply networking, saved the mounting point, realized the main valve plane sealing, O shape circle only can guarantee that down main valve turnover water cavity is non-leakage, and valve is when work, the hydraulic action that radially is subjected to of sealing gasket has a thrust from inside to outside, the setting of O shape circle, and the groove on flap and the press table can firmly fasten it, be extruded never again, realized the decompression voltage stabilizing, clean water quality, the using effect of good airproof performance.
Claims (4)
1, a kind of is main part by needle value, main valve, pilot valve, pressure gauge, ball valve, elbow and connecting tube are the leading type decompression venting valve that accessory is formed, be connected to the main valve valve cover cavity from the main valve water-inlet cavity by needle value of connecting tube serial connection, be connected to the main valve water chamber from valve cover cavity by pilot valve of connecting tube serial connection again, it is characterized in that in the water-inlet cavity at main valve axle center, being provided with a filtering screen 9, in the work of flap 6, connect an inner ring along the ring-shaped rubber sealing gasket 7 that boss is arranged.
2, leading type decompression venting valve according to claim 1, it is characterized in that filtering screen 9 is the drum shape guard 1 of uncovered of the no end, upper edge and end opening respectively have a stiffening ring 2 along the inboard, suitable for reading and the main valve turnover water cavity lower plane with one voice of cover cooperates, and end opening cooperates affixed location with bottom flange 10.
3, leading type decompression venting valve according to claim 1 and 2, it is characterized in that rubber gasket 7 for plane pad and inner ring along enclose the Gask-O-Seal that combines for O shape.
4, leading type decompression venting valve according to claim 3 is characterized in that on the junction plane of flap 6 and press table 8 toroidal cavity 12 that is used to block O-ring seals being arranged respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97206744 CN2297609Y (en) | 1997-03-17 | 1997-03-17 | Guide type pressure-reducing and pressure-stabilizing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97206744 CN2297609Y (en) | 1997-03-17 | 1997-03-17 | Guide type pressure-reducing and pressure-stabilizing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2297609Y true CN2297609Y (en) | 1998-11-18 |
Family
ID=33926661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97206744 Expired - Fee Related CN2297609Y (en) | 1997-03-17 | 1997-03-17 | Guide type pressure-reducing and pressure-stabilizing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2297609Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443844A (en) * | 2015-12-19 | 2016-03-30 | 无锡压缩机股份有限公司 | Vacuum regulating valve device used for vacuum displacement pump |
| CN111692392A (en) * | 2020-06-23 | 2020-09-22 | 四川凯德源科技有限公司 | Pressure regulating method of ultrahigh pressure self-operated pressure regulator |
-
1997
- 1997-03-17 CN CN 97206744 patent/CN2297609Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443844A (en) * | 2015-12-19 | 2016-03-30 | 无锡压缩机股份有限公司 | Vacuum regulating valve device used for vacuum displacement pump |
| CN111692392A (en) * | 2020-06-23 | 2020-09-22 | 四川凯德源科技有限公司 | Pressure regulating method of ultrahigh pressure self-operated pressure regulator |
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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 |