CN205298611U - Sphere line seal structure for valve - Google Patents
Sphere line seal structure for valve Download PDFInfo
- Publication number
- CN205298611U CN205298611U CN201620052371.9U CN201620052371U CN205298611U CN 205298611 U CN205298611 U CN 205298611U CN 201620052371 U CN201620052371 U CN 201620052371U CN 205298611 U CN205298611 U CN 205298611U
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- Prior art keywords
- valve
- valve plate
- sealing surface
- valve body
- sealing
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Abstract
The utility model relates to a sphere line seal structure for valve, including valve body and valve plate, the valve plate surface is provided with sealed face, the side of the sealed face of valve plate is provided with the recess at the intermediate position, the recess will the sealed face of valve plate divide into upper and lower two parts, two parts of valve plate formation seal the face and seal the face with the spherical line contact that all is of the sealed face contact formation of valve body, the utility model relates to a sphere line seal structure for valve is because the sealed face of valve plate the outer rubber is line contact sphere interference fit with seal face of the valve body, this kind of cooperation form makes the product open and close the in -process in any angle all to medium sealing up formed at the external world, form the sealed even unanimity of each position interference, the existence of recess has reduced the area of contact between valve body and the sealed face of valve plate, thereby the friction between valve plate and the seal face of the valve body has been reduced, thereby the sealed pressure resistance of product has been improved, reduce the product by a wide margin and opened and close the moment of torsion, and the service life of the product is prolonged.
Description
Technical field
The utility model relates to valve technology field, relates in particular to a kind of valve sphere linear sealing structure.
Background technology
In prior art, common valve hermetically-sealed construction, 1, due to the valve body of valve and the sealing surface of valve plateAspect cooperation because the design defect magnitude of interference is inhomogeneous; 2, valve body and valve plate contact area are excessive, cause at valveIn door opening-closing process, valve plate rubber and valve body sealing surface local friction are serious, and valve plate rubber easily produces in the short timeRaw aging and damaged, thus cause product short service life; 3, open and close torque is large, the sealing to medium and heirPressure aspect is also not ideal enough.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of long service life, and keying is turned roundSquare is little, sphere linear sealing structure for the sealing property to medium and the valve of good pressure-resistant performance.
The utility model is sphere linear sealing structure for a kind of valve, comprises valve body and valve plate, described valve body and valvePlate surface is respectively arranged with sealing surface, and the side of described sealing surface of valve plate is provided with groove in centre position, instituteState groove the sealing surface of described valve plate is divided into upper and lower two parts, two parts sealing surface that described valve plate formsWhat contact formation with the sealing surface of valve body is all spherical line contact sealing surface.
Further, the sealing surface of described valve plate and the sealing surface of valve body become same axle center spheroid, described valveIn the line contact position of the two-part sealing surface of plate and the sealing surface of valve body and the sealing surface of valve body, be formed centrally partiallyThe heart.
Further, the sealing surface of described valve plate contacts sphere interference fit and forms valve with the sealing upper thread of valve bodyThe sealing of door to medium.
Further, described groove is cylinder or cone.
By such scheme, the utility model at least has the following advantages: 1, due to the sealing of valve plate outer layer rubberFace is that line contacts sphere interference fit with valve body sealing surface, this fit form make product in opening-closing processAny angle all forms and extraneous sealing medium, forms each position interference uniformity of sealing; 2, recessedThe existence of groove has reduced the contact area between valve body and sealing surface of valve plate, thereby has reduced valve plate and valve body is closeFriction between front cover. Therefore the design has improved the sealing withstand voltage properties of product, has significantly reduced product and has openedClose moment of torsion, extended the service life of product.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, new in order to better understand this practicalityThe technological means of type, and can being implemented according to the content of description, below with better reality of the present utility modelExecute example and coordinate accompanying drawing to be described in detail as follows.
Brief description of the drawings
Fig. 1 is a kind of line contact ball face sealing between a kind of valve sphere linear sealing structure valve body and valve plateStructural representation;
Fig. 2 is a kind of line contact ball face sealing between a kind of valve sphere linear sealing structure valve body and valve plateStructural representation.
1, valve body; 2, valve plate; 3, groove.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
Referring to Fig. 1 and Fig. 2, sphere linear sealing knot for a kind of valve described in the utility model one preferred embodimentStructure, comprises valve body 1 and valve plate 2, and valve body 1 and valve plate 2 surfaces are respectively arranged with sealing surface, and valve plate 2 is by canThe frame for movement of dismounting is installed in valve plate 1, and the side of valve plate 2 is provided with groove 4 in centre position, by valveThe sealing surface of plate 2 is divided into upper and lower two parts, and groove 4 can be cylinder, can be also cone, valve plate 2What two parts sealing surface forming contacted formation with the sealing surface of valve body 1 is all spherical line contact sealing surface, valveThe sealing surface of the sealing surface of plate 2 and valve body 1 is same axle center spheroid, and the two-part sealing of valve plate 2In the line contact position of the sealing surface of face and valve body 1 and the sealing surface of valve body 1, be formed centrally bias, valve plate 2Sealing surface is that line contacts the sealing of sphere interference fit formation valve to medium with the contact-making surface of valve body 1 sealing surface.Due to the existence of groove 4, reduce the contact area of valve plate 2 with the sealing surface of valve body 1, thereby reducedValve is the friction between valve plate 2 and valve body 1 sealing surface in opening-closing process. In the situation that has medium, pressureUnder, valve plate 2 floats, and can form sealing more closely.
Sphere linear sealing structure for this valve, 1, because valve plate outer layer rubber sealing surface and valve body sealing surface are lineContact sphere interference fit, this fit form make product in opening-closing process in any angle all to medium shapeBecome and extraneous sealing, form each position interference uniformity of sealing; 2, the existence of groove has reduced valve bodyAnd the contact area between sealing surface of valve plate, thereby reduce the friction between valve plate and valve body sealing surface. CauseThis design has improved the sealing withstand voltage properties of product, has significantly reduced the open and close torque of product, has extended productThe service life of product.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, shouldWhen pointing out, for those skilled in the art, do not departing from the utility model know-whyPrerequisite under, can also make some improvement and modification, these improve and modification also should be considered as the utility modelProtection domain.
Claims (4)
1. a sphere linear sealing structure for valve, comprises valve body (1) and valve plate (2), it is characterized in that:Described valve body (1) and valve plate (2) surface are provided with sealing surface, and the side of described valve plate (2) sealing surface existsCentre position is provided with groove (4), described groove (4) by the sealing surface of described valve plate (2) be divided into,Lower two parts, two parts sealing surface that described valve plate (2) forms contacts formation with the sealing surface of valve body (1)Be all spherical line contact sealing surface.
2. sphere linear sealing structure for a kind of valve according to claim 1, is characterized in that: described inThe line contact position of the sealing surface of valve plate (2) and valve body (1) sealing surface and the sealing surface center of valve body (1)Form bias, and the sealing surface of the sealing surface of described valve plate (2) and valve body (1) becomes same axle center spheroid.
3. sphere linear sealing structure for a kind of valve according to claim 1, is characterized in that: described inThe sealing surface of valve plate (2) is that line contacts the formation of sphere interference fit with the contact-making surface of the sealing surface of valve body (1)The sealing of valve to medium.
4. sphere linear sealing structure for a kind of valve according to claim 1, is characterized in that: described inGroove (4) is cylinder or cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620052371.9U CN205298611U (en) | 2016-01-20 | 2016-01-20 | Sphere line seal structure for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620052371.9U CN205298611U (en) | 2016-01-20 | 2016-01-20 | Sphere line seal structure for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298611U true CN205298611U (en) | 2016-06-08 |
Family
ID=56429894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620052371.9U Expired - Fee Related CN205298611U (en) | 2016-01-20 | 2016-01-20 | Sphere line seal structure for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298611U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386553A (en) * | 2018-05-21 | 2018-08-10 | 南通升辉机械有限公司 | A kind of novel manual butterfly valve |
| CN112460218A (en) * | 2020-11-27 | 2021-03-09 | 西安理工大学 | Sealing device of contact type ball screw |
-
2016
- 2016-01-20 CN CN201620052371.9U patent/CN205298611U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386553A (en) * | 2018-05-21 | 2018-08-10 | 南通升辉机械有限公司 | A kind of novel manual butterfly valve |
| CN112460218A (en) * | 2020-11-27 | 2021-03-09 | 西安理工大学 | Sealing device of contact type ball screw |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20180120 |