CN2348209Y - Ball check valve - Google Patents
Ball check valve Download PDFInfo
- Publication number
- CN2348209Y CN2348209Y CN 98207844 CN98207844U CN2348209Y CN 2348209 Y CN2348209 Y CN 2348209Y CN 98207844 CN98207844 CN 98207844 CN 98207844 U CN98207844 U CN 98207844U CN 2348209 Y CN2348209 Y CN 2348209Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- check valve
- little resistance
- ball 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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Abstract
The utility model relates to a micro block ball check valve, at least comprising a valve body 1, a cone-shaped baffle 2 with a hollow cavity, a sealed ball 3, an inlet part 4 of the valve body and an outer part 5 of the valve body. The utility model is characterized in that the flow area of the fluid of each net flow passage of any plane surface which is perpendicular to an axial cord is equal to the through diameter of the valve, and the plane surface is arranged on the axial cord of the check valve. A small hole 6 is arranged on the axial cord of the valve body and the cone ogive of the baffle, so the resistance head is minimal and the check action reliably plays. The utility model has the advantages of easy fabrication, convenient assemblage, fluent flow guiding and long service life.
Description
The present invention relates to a kind of ball check valve.
China utility model patent CN2198480Y (application number of this application is 94236927.0) discloses a kind of little resistance ball check valve, and there is following technical problem in this safety check:
1, the design of this valve reckons without the bottleneck of fluid flow resistance, fluid will be because the existence of bottleneck will make its resistance increase, as, in the fluid flow area in the net flow road of the suction side of front valve shell fluid flow area much larger than the net flow road of valve body junction, front and back, therefore will form bottleneck in valve body junction, front and back, its resistance is increased;
2, this valve the tip, tapering of taper protector shut, therefore when pipeline has backflow, because the cavity between protector and the ball sealer seals, ball sealer is attracted on the protector easily, and the import department that makes ball sealer can not get back to front valve shell reliably forms required non-return effect;
3, its protector is designed to straight taper shape, is unfavorable for the water conservancy diversion of fluid;
4, this safety check is made into split, makes it need during fabrication to be formed separately, and will consider mutual quality of fit, and also special stuffing box packing will be set when mounted, therefore makes its manufacturing and difficulty is installed all.
General purpose of the present utility model provides the minimum little resistance ball check valve of a kind of drag losses.
Another purpose of the present utility model provides a kind of little resistance ball check valve that can play the non-return effect reliably.
Other purpose of the present utility model provides a kind of rational in infrastructure, and the water conservancy diversion smoothness is made easily, little resistance ball check valve of the long service life of easy for installation and valve body.
The purpose of this utility model is to realize like this, promptly, the utility model provides a kind of little resistance ball check valve, at least have a valve body, a import department 4 and an export department with the taper deflector of cavity, a ball sealer, a valve body, it is characterized in that, this safety check along any place on the axis of valve, equate with the latus rectum of valve perpendicular to the fluid flow area in each the net flow road on the plane of this axis.Like this because the relation of the latus rectum of the fluid flow area in each net flow road of consideration and valve, it is equated or about equally, solved bottleneck and corresponding resistance that fluid flows, made the resistance of valve reduce to minimum, the working life of having reduced the drag losses of valve and having improved valve.
Little resistance ball check valve of the present utility model; also can be along on the axis of valve body and at the awl ogival of deflector; have an aperture, be attracted to the problem that the import department that makes ball sealer can not get back to front valve shell reliably on the protector forms required non-return effect easily thereby solved ball sealer.
Safety check of the present utility model is equipped with a seal ring at the import department of valve body place, like this, and when ball sealer just leans against the backflow that stops fluid on the sealing ring during with fluid reflux.
Preferably valve body and deflector are the integrally formed members of difference, will make like this with easy for installation, and valve body can also be a member with the deflector unitary moulding in case of necessity.
In addition, valve body can be provided with respectively in import department 4 and export department and be used for the screw that is connected with fluid line, to help the installation of valve body.
Advantageously, on the circumference of the inwall of a side of the import department of valve body, also be interval with at least a supporting water conservancy diversion rib that is used to support and guide ball sealer, certain supporting water guiding strip more than 3 all is among the reason as 4 water guiding strips.
Useful is that described taper deflector has the conical outer surface of arc.Particularly when the formed inner cambered surface basically identical of the internal surface of formed outside cambered surface and valve body when ball sealer and taper deflector closely cooperate, help forming the fluid flow area in net flow road about equally and net flow road flow area is equated with the latus rectum of valve, make the mobile smoothness of fluid simultaneously.
Best, described taper deflector has at least a ribs, and the leg of a radially outer end of this ribs is supported on the end of export department of valve body 1.
Also have, described valve body can with described deflector global formation, make it make standard and simple more like this.
But valve body of the present utility model in addition, deflector ball sealer or seal ring can adopt rubber molding plastic or varicose to make.
The further advantage of the utility model will be by with reference to the description of the drawings and clearer.
Accompanying drawing is the axle cross section view of little resistance ball check valve of the present utility model.
As shown in the figure, little resistance ball check valve of the present utility model has import department 4 and the export department 5 that a valve body 1, have the taper deflector 2 of cavity, ball sealer 3, a valve body at least, this safety check along any place on the axis of valve, equate with the latus rectum of valve or about equally perpendicular to the fluid flow area in each the net flow road on the plane of this axis.Along on the axis of valve body and, have an aperture 6 at the awl ogival of deflector.Import department 4 places at valve body are equipped with a seal ring 7.Its valve body 1 and deflector 2 are the integrally formed members of difference.Valve body 1 is respectively equipped with in import department 4 and export department 5 and is used for the screw 8 that is connected with fluid line.On the circumference of the inwall of a side of the import department 4 of valve body, also be interval with at least 3 supporting water conservancy diversion ribs 9 that are used to support and guide ball sealer 3.Described taper deflector 2 has the conical outer surface 10 of arc.Described taper deflector 2 has at least 3 ribs 11, and the leg of a radially outer end of this ribs is supported on the end of export department of valve body 1.The formed inner cambered surface basically identical of internal surface of formed outside cambered surface and valve body 1 when ball sealer 3 and taper deflector closely cooperate, their shapes as shown in the figure are roughly a kind of ellipse.Described valve body 1 is respectively a global formation with described deflector 2, and certain described valve body 1 also can be a global formation with described deflector 2.
Claims (10)
1. little resistance ball check valve, at least have a valve body (1), one and have taper deflector (2), a ball sealer (3) of cavity, the import department (4) and the export department (5) of a valve body, it is characterized in that, this safety check along any place on the axis of valve, equate with the latus rectum of valve perpendicular to the fluid flow area in each the net flow road on the plane of this axis.
2, little resistance ball check valve as claimed in claim 1 is characterized in that, along on the axis of valve body and at the awl ogival of deflector, has an aperture (6).
3, little resistance ball check valve as claimed in claim 1 is characterized in that, locates in the import department (4) of valve body, and a seal ring (7) is installed.
4, little resistance ball check valve as claimed in claim 1 is characterized in that, valve body (1) is the integrally formed member of difference with described deflector (2).
5, little resistance ball check valve as claimed in claim 1 is characterized in that, valve body (1) is respectively equipped with in import department (4) and export department (5) and is used for the screw (8) that is connected with fluid line.
6, little resistance ball check valve as claimed in claim 1 is characterized in that, on the circumference of the inwall of a side of the import department (4) of valve body, also is interval with at least 3 supporting water conservancy diversion ribs (9) that are used for supporting and guiding ball sealer (3).
7, little resistance ball check valve as claimed in claim 1 is characterized in that, described taper deflector (2) has the conical outer surface (10) of arc.
8, little resistance ball check valve as claimed in claim 1 is characterized in that, the formed inner cambered surface basically identical of internal surface of formed outside cambered surface and valve body (1) when ball sealer (3) and taper deflector closely cooperate.
9, little resistance ball check valve as claimed in claim 1 is characterized in that described taper deflector (2) has at least 3 ribs (11), and the leg of a radially outer end of this ribs is supported on the end of export department of valve body (1).
10, little resistance ball check valve as claimed in claim 1 is characterized in that, described valve body (1) is the member of a global formation with described deflector (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98207844 CN2348209Y (en) | 1998-08-18 | 1998-08-18 | Ball check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98207844 CN2348209Y (en) | 1998-08-18 | 1998-08-18 | Ball check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2348209Y true CN2348209Y (en) | 1999-11-10 |
Family
ID=33963687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98207844 Expired - Fee Related CN2348209Y (en) | 1998-08-18 | 1998-08-18 | Ball check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2348209Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052490A (en) * | 2009-11-06 | 2011-05-11 | 通用汽车环球科技运作公司 | Check ball valve assembly with check ball guide |
| CN102748510A (en) * | 2012-07-23 | 2012-10-24 | 西华大学 | Micro-resistance spherical check valve |
| CN104214377A (en) * | 2014-08-15 | 2014-12-17 | 浙江德清莱恩斯涂装设备有限公司 | Sealed type one-way oil nozzle |
| CN114811124A (en) * | 2022-03-30 | 2022-07-29 | 天津卡尔斯阀门股份有限公司 | Low flow resistance slow-closing axial flow type check valve |
-
1998
- 1998-08-18 CN CN 98207844 patent/CN2348209Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052490A (en) * | 2009-11-06 | 2011-05-11 | 通用汽车环球科技运作公司 | Check ball valve assembly with check ball guide |
| CN102748510A (en) * | 2012-07-23 | 2012-10-24 | 西华大学 | Micro-resistance spherical check valve |
| CN104214377A (en) * | 2014-08-15 | 2014-12-17 | 浙江德清莱恩斯涂装设备有限公司 | Sealed type one-way oil nozzle |
| CN114811124A (en) * | 2022-03-30 | 2022-07-29 | 天津卡尔斯阀门股份有限公司 | Low flow resistance slow-closing axial flow type check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |