CN1100226C - Single diaphragm pneumatic cut-off valve - Google Patents
Single diaphragm pneumatic cut-off valve Download PDFInfo
- Publication number
- CN1100226C CN1100226C CN99127161A CN99127161A CN1100226C CN 1100226 C CN1100226 C CN 1100226C CN 99127161 A CN99127161 A CN 99127161A CN 99127161 A CN99127161 A CN 99127161A CN 1100226 C CN1100226 C CN 1100226C
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- diaphragm
- pneumatic cut
- upper diaphragm
- 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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Abstract
The present invention relates to a single diaphragm pneumatic cut-off valve which comprises a valve cover, a valve core, a valve body and a diaphragm. Compared with a double diaphragm pneumatic cut-off valve, the present invention has the advantages of small volume, light weight and high use pressure.
Description
Technical field
The present invention relates to a kind of single diaphragm pneumatic cut-off valve
Background technique
This case claimant has applied for a kind of pair of film pneumatic cut-off valve on July 1st, 98, and this patent document is introduced the structure of this valve, and it comprises the annulus below valve gap, the valve gap, also has valve body to constitute shell.Between valve gap and annulus, upper diaphragm is housed, diaphragm down is housed between annulus and valve body, form spool by valve rod and diaphragm.Constitute air chamber by annulus, upper diaphragm, following diaphragm.Described diaphragm is taper, and the awl end is circular, and the vertex of a cone is a disk, and there is foundry goods at the awl center, and is threaded, and shows two up and down and supplies electric the linking by spiral shell of film to be one.Above-mentioned valve removes spring, and the spring air valve that weight ratio is traditional has alleviated manyfold, but its same pressure that all will overcome controlled fluid with spring air valve, and different is diaphragm elastic force overcomes hydrodynamic pressure and spring force overcomes hydrodynamic pressure very big difference.For example: Dg250 air valve (power plant the uses) weight with two film systems has only about 100kg, has alleviated doubly a lot than the Dg250 air valve of making of spring.But two film pneumatic cut-off valves are still relatively heavier, and technical performance is also not ideal, therefore, is necessary to provide a kind of novel pneumatic cut-off valve.
Summary of the invention
The purpose of this invention is to provide a kind of pneumatic cut-off valve, hydrodynamic pressure is very little in this valve, only needs the less external force just can open and close, can improve the working pressure of pneumatic cut-off valve greatly, and volume is little, and is in light weight.
For achieving the above object the present invention by the following technical solutions: a kind of single diaphragm pneumatic cut-off valve, it comprises valve gap, valve body, spool, between described valve gap and the valve body upper diaphragm is housed, the round iron plate, flange on the spool, they are affixed with screw, the upper diaphragm centre bit is equipped with a support plate, support plate center and center spool join, upper diaphragm and spool top constitute air chamber, it is characterized in that the spool bottom is tapered, tapered portion is with the urceolus that elastic material is made, be used for the sealing of fluid inlet and outlet, the longitudinal plane of described upper diaphragm is " mountain " font, and wherein both sides and horizontal sextant angle α are 10 °＜α＜85 ° in " mountain " font.
Advantage of the present invention: spool has multiple functions such as barrier film, spring, diaphragm.Experimental results show that hydrodynamic pressure seems very little in valve, only need less external force just can open, close.The working pressure of single diaphragm pneumatic block valve is improved greatly, and volume is little, and is in light weight.
Description of drawings:
Fig. 1 is a structural representation of the present invention:
Embodiment
Among Fig. 1, valve gap 3, valve body 9 is formed valve housing, upper diaphragm 6, round iron plate 7, spool 8 flanges are arranged between them, clamp with bolt 5, connecting above-mentioned upper diaphragm 6 has dunnage, cover one diaphragm on the dunnage, longitudinal plane is " mountain " shape, and the interior angle α of both sides of " mountain " word and horizontal plane is 10 °＜α＜85 °.Join by bolt 5 and spool 8 center-poles in the middle of the diaphragm, spool 8 center-poles bottom is taper, cover one elastic material is made the cartridge type cover in the taper, is 0 °＜β＜180 ° with Vertical direction angle β in the spool lower taper bottom cone, by cartridge type cover upper side band flange and upper diaphragm 6 formation air chambers.
What above-mentioned and bolt joined is valve switch state indicating arm 4, indicating arm stretched out valve gap 3 when valve was opened, and at valve gap roof anchorage one transparent cover 2, contactless switch 1 was housed in the cover, feedback signal (signal is given auxiliary reclay, is used for remote control or automatic control) can be sent in this contact.
Working procedure is like this: constitute air chamber by upper diaphragm 6 or spool 8 tops, because the useful area of upper diaphragm 6 is more bigger than spool 8, when when air chamber is inflated, producing a power that makes progress, valve opening, send feedback signal during indicating arm 4 process contactless switches 1 and pass to control room or valve actuator, with realization valve remote control or automatic control, on the contrary valve closing.
Claims (2)
1. single diaphragm pneumatic cut-off valve, it comprises valve gap, valve body, spool, between described valve gap and the valve body upper diaphragm is housed, the round iron plate, flange on the spool, they are affixed with screw, the upper diaphragm centre bit is equipped with a support plate, support plate center and center spool join, upper diaphragm and spool top constitute air chamber, it is characterized in that the spool bottom is tapered, tapered portion is with the urceolus that elastic material is made, be used for the sealing of fluid inlet and outlet, the longitudinal plane of described upper diaphragm is " mountain " font, and wherein both sides and horizontal sextant angle α are 10 °＜α＜85 ° in " mountain " font.
2. a kind of single diaphragm pneumatic cut-off valve according to claim 1, its feature is owing to be 0 °＜β＜180 ° with Vertical direction angle β in the described conical lower portion cone
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99127161A CN1100226C (en) | 1999-12-28 | 1999-12-28 | Single diaphragm pneumatic cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99127161A CN1100226C (en) | 1999-12-28 | 1999-12-28 | Single diaphragm pneumatic cut-off valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1301930A CN1301930A (en) | 2001-07-04 |
| CN1100226C true CN1100226C (en) | 2003-01-29 |
Family
ID=5284758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99127161A Expired - Fee Related CN1100226C (en) | 1999-12-28 | 1999-12-28 | Single diaphragm pneumatic cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1100226C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010276578A1 (en) * | 2009-07-27 | 2012-02-02 | Merck Sharpe & Dohme, Corp. | Diaphragm valve with improved sealing performance and leak detection |
| CN105443821A (en) * | 2015-12-15 | 2016-03-30 | 成都迅德科技有限公司 | Low-noise pressure regulating valve |
| CN107489811A (en) * | 2017-09-30 | 2017-12-19 | 贵州新安航空机械有限责任公司 | A kind of oxygen concentration solenoid relay valve element |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435151A (en) * | 1980-05-26 | 1984-03-06 | Hitachi, Ltd. | Fuel supply control system |
| EP0496497A1 (en) * | 1991-01-19 | 1992-07-29 | Ford Motor Company Limited | Gas flow control valve |
| US5749563A (en) * | 1996-01-26 | 1998-05-12 | Taiho Kogyo Co., Ltd. | Exhaust gas recirculation system |
| CN2338553Y (en) * | 1998-07-01 | 1999-09-15 | 喻丁根 | Double-diaphragm pneumatic stop valve |
-
1999
- 1999-12-28 CN CN99127161A patent/CN1100226C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435151A (en) * | 1980-05-26 | 1984-03-06 | Hitachi, Ltd. | Fuel supply control system |
| EP0496497A1 (en) * | 1991-01-19 | 1992-07-29 | Ford Motor Company Limited | Gas flow control valve |
| US5749563A (en) * | 1996-01-26 | 1998-05-12 | Taiho Kogyo Co., Ltd. | Exhaust gas recirculation system |
| CN2338553Y (en) * | 1998-07-01 | 1999-09-15 | 喻丁根 | Double-diaphragm pneumatic stop valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1301930A (en) | 2001-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |