CN101929570A - Flap valve - Google Patents
Flap valve Download PDFInfo
- Publication number
- CN101929570A CN101929570A CN2009100333511A CN200910033351A CN101929570A CN 101929570 A CN101929570 A CN 101929570A CN 2009100333511 A CN2009100333511 A CN 2009100333511A CN 200910033351 A CN200910033351 A CN 200910033351A CN 101929570 A CN101929570 A CN 101929570A
- Authority
- CN
- China
- Prior art keywords
- flap valve
- water
- cavity
- valve cover
- flap
- 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
The invention relates to a flap valve, in particular to a check valve device for back stop and cutoff in the water supply and drainage engineering. The check valve device comprises a flap valve base and a flap valve cover hinged on the flap valve base, wherein a seal ring is arranged at the periphery of the end face of a water outlet of the flap valve base; a cavity is formed in the flap valve cover, and a liquid injecting hole and a liquid outlet which are communicated with the cavity are formed on the flap valve cover; and a control device for controlling liquid amount in the cavity of the flap valve cover is connected to the flap valve. When the flap valve is used, water can be added into a float chamber from a pump through an upper water injection hole to increase the weight of the flap valve cover, so that the flap valve cover is closed; and when water flows out of the flap valve and the flap valve cover is difficult to open due to excess weight, a lower water injection hole can be opened, and the pump is switched on to discharge part of or all water to reduce the weight of the flap valve cover, so that the flap valve is opened.
Description
Technical field
The present invention relates to a kind of check valve apparatus that water supply and sewage work are realized check and cutout that is used for, relate in particular to a kind of flap valve.
Background technique
Flap valve is mounted in a kind of one-way valve at rivers seashore limit or supply and drain water system pipe water outlet place, be unlatching and the closure that realizes the flap valve lid by the pressure reduction of the inside and outside both sides of flap valve lid, in tidewater is higher than pipe during water level, flap valve can be closed automatically, block tidewater and enter pipeline, prevent that sea, river, river from pouring in down a chimney.When tidewater debarks under the wind-force effect, water on the bank can flow to rivers by flap valve again.Present flap valve structure is made of flap valve lid, flap valve seat, is 3～5 ° of inclination angles with vertical elevation, is beneficial to flap valve and closes under action of gravity tightly.During reality was used, when tidewater, unrestrained impact force are bigger, and shock height was when being in the flap valve lower edge, and flap valve can be opened by tidewater, pours in down a chimney into a part of tidewater.When being exactly internal drainage in addition, when water flow impact pressure is lower, be difficult to open heavier flap valve.
Summary of the invention
The present invention is directed to above-mentioned defective, purpose is to provide the flap valve that a kind of light make and break is opened, flexibility is closed.
Technological scheme of the present invention is: the present invention includes flap valve seat and the flap valve lid that is hinged on the flap valve seat, the circumferential circle of flap valve seat water outlet end face is provided with seal ring, flap valve lid inside is provided with cavity, flap valve covers and is provided with liquid filling hole and the liquid outlet opening that is communicated with cavity, is connected with the control gear of amount of liquid in the control flap valve lid cavity on the flap valve.
When the present invention uses at flap valve, can in buoyancy tank, add entry by pump by the top water filling hole, to increase flap valve lid weight, cover thereby close flap valve, when the flap valve water outlet, door closure is overweight, when being difficult for opening, can open the bottom water filling hole, open pump and emit part or all of water, cover weight to alleviate flap valve, thereby open flap valve.
Description of drawings
Fig. 1 is a structural representation of the present invention
Among the figure 1 for flap valve lid, 2 be the flap valve seat, 3 for seal ring, 4 for cavity, 5 for liquid filling hole, 6 be liquid outlet opening.
Embodiment
The flap valve that the present invention includes flap valve seat 2 and be hinged on the flap valve seat 2 covers 1, and the circumferential circle of flap valve seat 2 water outlet end faces is provided with seal ring 3, and flap valve covers 1 inside and is provided with cavity 4, and flap valve lid 1 is provided with liquid filling hole 5 and the liquid outlet opening 6 that is communicated with cavity 4.
The present invention is provided with cavity 4 in flap valve lid 1, can adjust the weight of flap valve lid 1 according to the needs of actual conditions flexibly, be beneficial to the unlatching and the closure of flap valve lid 1, make hydraulic loss little, also reduced simultaneously strong rigid bump and noise between flap valve lid 1 and the flap valve seat 2, not only improve the working life of flap valve lid 1 and flap valve seat 2, also prolonged the working life of seal ring simultaneously, good sealing effect, antileaking.
Claims (1)
1. flap valve, the flap valve that comprises the flap valve seat and be hinged on the flap valve seat covers, the circumferential circle of flap valve seat water outlet end face is provided with seal ring, it is characterized in that, flap valve lid inside is provided with cavity, flap valve covers and is provided with liquid filling hole and the liquid outlet opening that is communicated with cavity, is connected with the control gear of amount of liquid in the control flap valve lid cavity on the flap valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100333511A CN101929570A (en) | 2009-06-19 | 2009-06-19 | Flap valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100333511A CN101929570A (en) | 2009-06-19 | 2009-06-19 | Flap valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101929570A true CN101929570A (en) | 2010-12-29 |
Family
ID=43368908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100333511A Pending CN101929570A (en) | 2009-06-19 | 2009-06-19 | Flap valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101929570A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104723A (en) * | 2012-11-14 | 2013-05-15 | 安徽铜都阀门股份有限公司 | Flap valve |
| CN103453183A (en) * | 2013-09-02 | 2013-12-18 | 吴瑞侠 | Energy-saving type side-turning buoyancy tank flap valve |
-
2009
- 2009-06-19 CN CN2009100333511A patent/CN101929570A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104723A (en) * | 2012-11-14 | 2013-05-15 | 安徽铜都阀门股份有限公司 | Flap valve |
| CN103453183A (en) * | 2013-09-02 | 2013-12-18 | 吴瑞侠 | Energy-saving type side-turning buoyancy tank flap valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101229 |