CN201416670Y - Flap valve - Google Patents
Flap valve Download PDFInfo
- Publication number
- CN201416670Y CN201416670Y CN2009200441282U CN200920044128U CN201416670Y CN 201416670 Y CN201416670 Y CN 201416670Y CN 2009200441282 U CN2009200441282 U CN 2009200441282U CN 200920044128 U CN200920044128 U CN 200920044128U CN 201416670 Y CN201416670 Y CN 201416670Y
- Authority
- CN
- China
- Prior art keywords
- flap valve
- door
- water
- cavity
- valve seat
- 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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- Check Valves (AREA)
Abstract
And (4) knocking the door. Relates to a one-way valve device for realizing non-return and cut-off in water supply and drainage engineering. The flap valve comprises a flap valve seat and a flap valve cover hinged on the flap valve seat, wherein a sealing ring is arranged on the circumferential circle of the end surface of a water outlet of the flap valve seat, a cavity is arranged in the flap valve cover, a liquid injection hole and a liquid outlet hole which are communicated with the cavity are formed in the flap valve cover, and a control device for controlling the liquid amount in the cavity of the flap valve cover is connected to the flap valve. The utility model discloses when clapping the door and using, can add water by the pump through the upper portion water filling port in the flotation tank to increase clap door closure weight, thereby close clap door closure, when clapping the door and go out water, the door closure is overweight, when being difficult for opening, can open the lower part water filling port, opens the pump and emits partial or whole water, in order to alleviate clap door closure weight, thereby opens the door.
Description
Technical field
The utility model relates to a kind of check valve apparatus that water supply and sewage work are realized check and cutout that is used for, and relates 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.
The model utility content
The utility model is at above-mentioned defective, and purpose is to provide the flap valve that a kind of light make and break is opened, flexibility is closed.
The technical solution of the utility model is: the utility model comprises 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 utility model 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 utility model
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 utility model comprises flap valve seat 2 and the flap valve lid 1 that is hinged on the flap valve seat 2, 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 utility model 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 |
|---|---|---|---|
| CN2009200441282U CN201416670Y (en) | 2009-06-19 | 2009-06-19 | Flap valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200441282U CN201416670Y (en) | 2009-06-19 | 2009-06-19 | Flap valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201416670Y true CN201416670Y (en) | 2010-03-03 |
Family
ID=41793088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200441282U Expired - Lifetime CN201416670Y (en) | 2009-06-19 | 2009-06-19 | Flap valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201416670Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851300A (en) * | 2014-02-21 | 2014-06-11 | 武汉圣禹排水系统有限公司 | Low-resistance zero-pressure sealing flexible flap valve |
-
2009
- 2009-06-19 CN CN2009200441282U patent/CN201416670Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851300A (en) * | 2014-02-21 | 2014-06-11 | 武汉圣禹排水系统有限公司 | Low-resistance zero-pressure sealing flexible flap valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100303 |
|
| CX01 | Expiry of patent term |