CN86208085U - Pneumatic stop valve with two diaphragms - Google Patents
Pneumatic stop valve with two diaphragms Download PDFInfo
- Publication number
- CN86208085U CN86208085U CN 86208085 CN86208085U CN86208085U CN 86208085 U CN86208085 U CN 86208085U CN 86208085 CN86208085 CN 86208085 CN 86208085 U CN86208085 U CN 86208085U CN 86208085 U CN86208085 U CN 86208085U
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- CN
- China
- Prior art keywords
- valve
- diaphragms
- utility
- model
- switch
- 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 - Lifetime
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- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a pneumatic stop valve with two diaphragms. A pneumatic stop valve with two diaphragms without reeds is characterized in that the time of the action sensitive travel is short (1-2 seconds), and the air consumption is low (1m+[3]kg/cm+[2] gases can switch 1' air valve 7000 times). The signal pressure of controlling the valve and a switch is low, and the signal pressure of controlling the valve and the switch is free from the influence of the fluid-pressure variation. When the valve is stopped, a soft body and a rigid body are adopted to seal, and the inner leakage is not generated. Filling materials are not also provided, and the outer leakage is not generated. The part which is contacted with a fluid medium adopts the plastic or the other corrosion resistant metal materials. The diaphragms are anti-fatigue. The utility model has the advantages of long service life, simple structure, and cheap sale price. The utility model is light and handy. The utility model is suitable for having corrosion and poison (chemical plant, pharmaceutical plant, etc.) and the place of the inconvenient manual operation and the adventurous place which implement the program automatic control of the automation or the remote-control or the water processing, etc.
Description
The utility model belongs to cut-off valve, is specially adapted to adopt in the fluid manufacturing process autocontrol valve of gas circuit remote control.
Pneumatic valve on the market is of a great variety, generally is made up of tens component such as spring diaphragm head, cylinder and stuffing box packing.Make it complex structure, heaviness, have Vent to leak and price expensive.Reason is that air valve need overcome: the elastic force of (1) spring, the friction of (2) Sealing and valve rod, the pressure of (3) controlled fluid etc.If these three kinds of power all can be got rid of (most critical be the elastic force of spring), air valve is just simple naturally light and handy, is active in one's movements, and no Vent leakage, long service life and price are cheap etc., just can be extensive use of solution run, drip, leak problem.So jump out the circle of traditional pneumatic valve, create a kind of spring that both do not had, the novel pneumatic valve that does not only have filler but also not influenced by hydrodynamic pressure is just extremely urgent.The purpose of Here it is two film pneumatic cut-off valves of development.
Pneumatic pair of film cutting-off valve of no spring sees that its structure comprises shown in the accompanying drawing (gas force open type): handwheel 1, valve rod 2, valve gap 3, valve body 14 and air chamber and spool.
Said air chamber comprise diaphragm 4, garden ring 5 and glued membrane 10 by link 6 with 7 with valve gap 3 be connected with valve body 14 also simultaneously with 4,5 and garden taper glued membrane 10 compress and form air chamber and be connected as a single entity by cone 9 and valve rod again.
Spool comprises seal ring 12, guider 11 and link 8 etc., is connected with cone 9 by link 8, tightly is fixed on 12,11 to make it on 9 to be connected as a single entity with valve rod.
6 and 7 is screw-nut or riveted joint, is the seal ring 13 that is provided with easy for installation.Glued membrane 10 is the garden taper, and awl end horn mouth place is an individual layer for double-deck (or multilayer) awl vertex (vertices) end.
Diaphragm 4, the material of glued membrane 10 and seal ring 12 generally adopts rubber or fluorine-containing composite, also available soft plastic and beallon diaphragm etc.
Link 3, guider 11, valve body 14 can adopt plastics, also can adopt glass fibre reinforced plastics or foundry goods (comprising iron, titanium and nichrome etc.).
This structure is applicable to gas force open type and air valve formula.Elastic force by diaphragm 4 and glued membrane 10 just is being in sealing state with rigid body valve seat 14 with the soft seal ring 12 that seal ring 12 and valve seat 14 seal in (for gas force open type) or disconnection (being gas force closed type) accompanying drawing, belongs to gas force open type.As hydrodynamic pressure P2(-1～10kg/cm
2The pressure that is adopted during test) when entering valve body 14, P2 acts on the glued membrane 10 and to pass to connection piece 6 and 8 respectively by it and make it tension (or pressurized) and be overcome, hydrodynamic pressure P2 like this in valve body basically voluntarily " disappearance " so but with very little some external force switch valve just.As P1(0.6～1kg/cm
2) make when entering air chamber valve rod 2 produce one make progress make every effort to overcome clothes diaphragm elastic force with valve open, fluid flow.P1(0.6～1kg/cm in air chamber
2) close voluntarily again through guider 11 pilot valves during by the three-way magnetic valve emptying, fluid ends.Utilize handwheel 1 to come switch valve when stopping the supple of gas or steam.
Two film pneumatic cut-off valves have following advantage: (1) is light and handy; (2) long service life; (3) agile; (4) signal pressure of opening/shutting valve is low; (5) no Vent leaks; (6) valve opening is big; (7) the gas chamber volume trifle is economized power; (8) acid resistant alkali; (9) easy for installation.
Claims (2)
1, a kind of pair of film pneumatic cut-off valve be by handwheel 1, valve rod 2, and valve gap 3, valve body 14 and air chamber and spool are formed,
It is characterized in that said air chamber comprises diaphragm 4, garden ring 5 and glued membrane 10, by link 6 with 7 with valve gap 3 be connected with valve body 14 also simultaneously with 4,5 and garden taper glued membrane 10 compress and form air chamber and be connected as a single entity by cone 9 and valve rod 2 again;
Spool comprises seal ring 12, guider 11 and link 8 etc., is connected with cone 9 by link 8, tightly is fixed on 9 12,11, makes it to be connected as a single entity with valve rod 2.
2, it is characterized in that by said pair of pneumatic block valve of film of claim 1 the awl end horn mouth place of garden taper glued membrane 10 is an individual layer for double-deck (or multilayer) awl vertex (vertices) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86208085 CN86208085U (en) | 1986-10-16 | 1986-10-16 | Pneumatic stop valve with two diaphragms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86208085 CN86208085U (en) | 1986-10-16 | 1986-10-16 | Pneumatic stop valve with two diaphragms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86208085U true CN86208085U (en) | 1987-09-09 |
Family
ID=4810368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86208085 Expired - Lifetime CN86208085U (en) | 1986-10-16 | 1986-10-16 | Pneumatic stop valve with two diaphragms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86208085U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101080592B (en) * | 2005-06-23 | 2011-12-28 | 伯尔梅特合伙有限公司 | Hydraulic control valve with integrated dual actuators |
| CN102494163A (en) * | 2011-11-26 | 2012-06-13 | 重庆市智能水表有限责任公司 | Leakage-preventing check valve |
| CN110805708A (en) * | 2019-11-16 | 2020-02-18 | 徐国华 | Diaphragm type stop valve |
-
1986
- 1986-10-16 CN CN 86208085 patent/CN86208085U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101080592B (en) * | 2005-06-23 | 2011-12-28 | 伯尔梅特合伙有限公司 | Hydraulic control valve with integrated dual actuators |
| CN102494163A (en) * | 2011-11-26 | 2012-06-13 | 重庆市智能水表有限责任公司 | Leakage-preventing check valve |
| CN102494163B (en) * | 2011-11-26 | 2013-06-26 | 重庆市智能水表有限责任公司 | Leakage-preventing check valve |
| CN110805708A (en) * | 2019-11-16 | 2020-02-18 | 徐国华 | Diaphragm type stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |