CN201173317Y - Floating flap check valve - Google Patents
Floating flap check valve Download PDFInfo
- Publication number
- CN201173317Y CN201173317Y CNU200720108224XU CN200720108224U CN201173317Y CN 201173317 Y CN201173317 Y CN 201173317Y CN U200720108224X U CNU200720108224X U CN U200720108224XU CN 200720108224 U CN200720108224 U CN 200720108224U CN 201173317 Y CN201173317 Y CN 201173317Y
- Authority
- CN
- China
- Prior art keywords
- valve
- check valve
- valve body
- flap
- check
- 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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- Check Valves (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to a check valve, which comprises a valve body, a valve seat and a valve clack. The check valve mainly adopts the structure that a left valve body and a right valve body are hermetically arranged through connecting pieces, an Alpha angle is formed between a valve seat sealing surface and a pipeline center line, the valve clack is arranged on the right valve body through a valve rod, and a groove-shaped cavity is manufactured on the inner wall of the right valve body at the upper side of the valve clack. The check valve can be arranged in a horizontal pipeline and a vertical pipeline for use, when the valve clack is opened, the check valve is concealed and floated in the groove-shaped cavity of the inner wall of the right valve body, and the check valve has the advantages that the flow resistance is small, the water hammer is low when being closed, and the like. The check valve is a valve suitable for preventing the medium on the unidirectional flow medium pipeline from flowing backwards.
Description
Technical field
The utility model relates to a kind of valve, particularly about a kind of safety check.
Background technique
Safety check is widely used on the various medium pipelines, the control media one-way flow.The structural type of safety check mainly contains wafer type, rise-fall type, rotary-open type and butterfly structure.Lift check valve and butterfly check valve can only be installed on the horizontal pipe, and Lift check valve is bigger to the medium flow resistance.Wafer Check Valves and Swing check valve are bigger to the medium flow resistance, and Swing check valve when closing water hammer bigger.
Summary of the invention
The purpose of this utility model is the problem that exists at prior art, provides a kind of and is installed on horizontal pipe and the vertical pipe, and flow resistance is little, the low floating flap valve of water hammer when closing.
The technological scheme that realizes the utility model purpose comprises valve body, valve seat, flap, mainly be that valve body adopts left valve barrel and right valve barrel to install by the link sealing, become a angle between valve base sealing plane and the pipe centerline, flap is installed on the right valve barrel by valve rod, is shaped on the groove shaped cavity at the right valve barrel inwall of flap upside.Angle a between described valve base sealing plane and the pipe centerline is 30 ° of angles.
The utility model advantage is can be installed on horizontal pipe and vertical pipe to use, and flap opens that the back is latent to float in the groove shaped cavity of right valve barrel inwall, and has that flow resistance is little, to close water hammer low.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Embodiment
Floating flap valve as shown in Figure 1, scheme comprises valve body, valve seat 3, flap 6, valve body adopts left valve barrel 1, and 5 sealing installations are connected with bolt by nut 4 with right valve barrel 7, valve seat 3 sealings are installed on the left valve barrel 1, become a angle between its sealing plane and the pipe centerline, reduce water hammer when flap 6 is closed and produce, a angle is preferably adopted 30 °.Flap 3 is installed on the right valve barrel 7 by valve rod 8, can be to rotate at valve rod 8.Right valve barrel 7 inwalls at flap 3 upsides are shaped on the groove shaped cavity, just in time latently after flap 3 is opened float in the groove shaped cavity of right valve barrel 7, as 6 dotted line positions of flap among Fig. 1, to reduce the flow resistance of 6 pairs of media of flap.Be provided with gasket seal 2 between left valve barrel 1 and the right valve barrel 7.
Claims (1)
1, a kind of floating flap valve, comprise valve body, valve seat (3), flap (6), it is characterized in that valve body adopts left valve barrel (1) and right valve barrel (7) to install by the link sealing, become a angle between valve seat (3) sealing plane and the pipe centerline, flap (6) is installed on the right valve barrel (7) by valve rod (8), is shaped on the groove shaped cavity at right valve barrel (7) inwall of flap (6) upside; Become 30 ° of angles between described valve seat (3) sealing plane and the pipe centerline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720108224XU CN201173317Y (en) | 2007-04-13 | 2007-04-13 | Floating flap check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720108224XU CN201173317Y (en) | 2007-04-13 | 2007-04-13 | Floating flap check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201173317Y true CN201173317Y (en) | 2008-12-31 |
Family
ID=40200438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720108224XU Expired - Fee Related CN201173317Y (en) | 2007-04-13 | 2007-04-13 | Floating flap check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201173317Y (en) |
-
2007
- 2007-04-13 CN CNU200720108224XU patent/CN201173317Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 Termination date: 20160413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |