CN1796847A - Check valve of double non-return device with cylindrical diaphragm of rubber - Google Patents
Check valve of double non-return device with cylindrical diaphragm of rubber Download PDFInfo
- Publication number
- CN1796847A CN1796847A CN 200410099337 CN200410099337A CN1796847A CN 1796847 A CN1796847 A CN 1796847A CN 200410099337 CN200410099337 CN 200410099337 CN 200410099337 A CN200410099337 A CN 200410099337A CN 1796847 A CN1796847 A CN 1796847A
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- China
- Prior art keywords
- valve body
- valve
- rubber
- cylindrical diaphragm
- fixed
- 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.)
- Pending
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- Check Valves (AREA)
Abstract
A check valve of double no-return units with rubber diaphragm barrel is composed of valve body, the first non-return unit and the second non-return unit. It is featured as setting fixed bush being fixed by support rib plate in valve body, setting the second non-return unit at outlet section of valve, forming outlet section by barrel-type rubber diaphragm valve clack and support screen case, fixing front end of said valve clack in fixed bush of valve body and fixing support screen case at internal side of valve body.
Description
Technical field:
The invention belongs to valve technology field, particularly relate to a kind of check valve of double non-return device with cylindrical diaphragm of rubber.
Background technique:
The flap that existing safety check adopts, quality is big, close that water hammer is big, resistance is big.
Summary of the invention:
The object of the present invention is to provide a kind ofly, can effectively overcome above-mentioned defective, two check devices all simultaneously the bands of reliable sealings seal the double non-return device valve of controlling device synchronously.To achieve these goals, the technical solution adopted in the present invention is: a kind of check valve of double non-return device with cylindrical diaphragm of rubber, mainly form by valve body, first order check device and second level check device, its characteristics are: be provided with fixed cover in the valve body and fixed by bearing rib, second level check device is arranged at the outlet section of valve, is made up of diaphragm of rubber flap, the support guard of tubular; Cylindrical diaphragm of rubber flap front end is fixed in the valve body fixed cover, supports the inboard that guard is fixed in valve body.Owing to adopt such scheme, be not difficult to draw as drawing a conclusion, the present invention is rational in infrastructure, is skillfully constructed, and has light weight, noise is little, and back-flow velocity is little, and water hammer is little; Can be applicable to various non-return occasions, the tool promotional value.
Description of drawings:
Accompanying drawing is a structural representation of the present invention.
Embodiment:
Below in conjunction with drawings and Examples the present invention is described in further detail.
Among the figure, the present invention is made up of valve body 1, first order check device 2, second level check device 3; Wherein, it is fixing by bearing rib 11 to be provided with fixed cover 12 in the valve body, and first order check device is arranged at the inducer of valve body, and second level check device is arranged at the outlet section of valve body; Second level check device is made up of diaphragm of rubber flap 31, the support guard 32 of tubular; Cylindrical diaphragm of rubber flap 31 front ends are fixed in the valve body fixed cover 12, and tension force is closed with the support guard 32 support rubber cylindrical diaphragms 31 that are fixed in valve body in the outside, and form sealing and pay; During following current, cylindrical diaphragm of rubber 31 outside pressure are greater than inside pressure, make cylindrical diaphragm of rubber 31 to internal strain, medium passes and supports the valve pocket flow direction outlet of guard 32 from rubber film tube 31 outsides, current are by the afterbody rectification of vertical gusset 11 in the valve pocket and rubber film tube 31, swirling flow is little, and flow resistance is less; During non-return, outlet pressure is greater than leading portion pressure, and promptly rubber film tube 31 inside pressure are greater than outside pressure, and rubber film tube 31 opens rapidly with outside support guard 32 and contacts transmission tension force, forms sealing.
Claims (1)
1, a kind of check valve of double non-return device with cylindrical diaphragm of rubber, mainly form by valve body, first order check device and second level check device, it is characterized in that: be provided with fixed cover in the valve body and fix by bearing rib, second level check device is arranged at the outlet section of valve, is made up of diaphragm of rubber flap, the support guard of tubular; Cylindrical diaphragm of rubber flap front end is fixed in the valve body fixed cover, supports the inboard that guard is fixed in valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410099337 CN1796847A (en) | 2004-12-30 | 2004-12-30 | Check valve of double non-return device with cylindrical diaphragm of rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410099337 CN1796847A (en) | 2004-12-30 | 2004-12-30 | Check valve of double non-return device with cylindrical diaphragm of rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1796847A true CN1796847A (en) | 2006-07-05 |
Family
ID=36818087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410099337 Pending CN1796847A (en) | 2004-12-30 | 2004-12-30 | Check valve of double non-return device with cylindrical diaphragm of rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1796847A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349356B (en) * | 2007-07-16 | 2012-07-25 | 周俊 | One-way elastic valve and fluid delivery device used thereby |
| CN106567947A (en) * | 2016-11-10 | 2017-04-19 | 澳柯玛股份有限公司 | One-way valves and freezer equipped with one-way valves |
-
2004
- 2004-12-30 CN CN 200410099337 patent/CN1796847A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349356B (en) * | 2007-07-16 | 2012-07-25 | 周俊 | One-way elastic valve and fluid delivery device used thereby |
| CN106567947A (en) * | 2016-11-10 | 2017-04-19 | 澳柯玛股份有限公司 | One-way valves and freezer equipped with one-way valves |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |