CN203363260U - Seal assembly achieving sealing at position of tangent line - Google Patents
Seal assembly achieving sealing at position of tangent line Download PDFInfo
- Publication number
- CN203363260U CN203363260U CN 201320282488 CN201320282488U CN203363260U CN 203363260 U CN203363260 U CN 203363260U CN 201320282488 CN201320282488 CN 201320282488 CN 201320282488 U CN201320282488 U CN 201320282488U CN 203363260 U CN203363260 U CN 203363260U
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- China
- Prior art keywords
- seal ring
- tangent line
- groove
- sealing
- valve body
- 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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- Gasket Seals (AREA)
Abstract
The utility model discloses a seal assembly achieving sealing at the position of a tangent line. The seal assembly achieving sealing at the position of the tangent line comprises a valve body, a seal ring and a ball. The seal assembly achieving sealing at the position of the tangent line is characterized in that a fan-shaped annular groove is formed in the inner wall of the valve body, the seal ring is arranged inside the groove and is in contact with the ball, a fastening device is arranged at the position, close to the top, of the groove, the cross section of the seal ring is fan-shaped, a fastening groove matched with the groove is formed, the sealing surface of the seal ring is in tangent elastic contact with the surface of the ball, and a crescent gap exists between the seal ring and the valve body. The seal assembly achieving sealing at the position of the tangent line has the advantages that the structure is simple, the seal ring cannot disengage or be shorn by a ball channel, and the service life is long.
Description
Technical field
the utility model relates to the technical field of sealing technology of valve body, relates in particular to a kind of black box of coordination tangent line sealing.
Background technique
work the ball valve kind of blocking medium a lot of in pipeline, hard sealed eccentric ball valve and soft seal constant-current type ball valve are arranged, the sealing of hard sealed constant-current type ball valve is metal to metal, phase-contact surface meeting phase mutual friction after long-time the use, make to be sealed with certain leakage, the sealing of soft seal constant-current type ball valve is metal pair rubber, and after long-time the use, phase-contact surface can the phase mutual friction, and sealing can reach zero leakage.The inventor has announced a kind of ball for ball valve black box at the Chinese patent CN202629154U of first to file, on original base, makes further improvements now, and structure is more practical, better tightness.
The model utility content
The purpose of this utility model is to provide a kind of black box of coordination tangent line sealing, simple in structure, significant sealing affection.
To achieve these goals, the utility model adopts following technological scheme:
A kind of black box of coordination tangent line sealing, comprise valve body, seal ring and spheroid, and described valve interior wall is provided with fan-shaped annular recess, and described seal ring is placed in groove, and described seal ring contacts with spheroid.
Described groove is provided with fixing device by top.
Described seal ring cross section is fan-shaped, is provided with the groove that links closely with described groove fit.
The sealing surface of described seal ring and spheroid face tangentially Elastic Contact, be the crescent shape space between described seal ring and valve body.
The beneficial effects of the utility model: sealing station of the present utility model is the tangent line zone, sealing effect is played in its zone all the time, when pressure increases the promotion spheroid, the elasticity of valve sealing ring can increase sealing area with pressure, when pressure reduces, sealing area also can reduce thereupon, make its sealing always in automatic adjustment optimum range, the valve torque is little, high pressure and environment under low pressure can be used less drive unit opening and closing valve, saved cost, seal ring never drop-off or sheared long service life by the spheroid passage.
The accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 be of the present utility model in general assembly drawing schematic diagram.
Embodiment
Below, in conjunction with Fig. 1, the utility model is described further.
The black box that a kind of coordination tangent line seals as shown in Figure 1, comprise valve body (1), seal ring (2) and spheroid (4), described valve interior wall is provided with fan-shaped annular recess (3), described seal ring (2) is placed in groove (3), described seal ring (2) contacts with spheroid (4), described groove (3) is provided with fixing device by top, described seal ring (2) cross section is fan-shaped, be provided with the groove that links closely coordinated with described groove (3), the sealing surface of described seal ring (2) and spheroid face tangentially Elastic Contact, be the crescent shape space between described seal ring (2) and valve body (1).
Above embodiment is only in order to illustrate the utility model and the described technological scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can modify or be equal to replacement the utility model; And all do not break away from technological scheme and the improvement thereof of spirit and scope of the present utility model, all should be encompassed in claim scope of the present utility model.
Claims (4)
1. the black box of a coordination tangent line sealing, comprise valve body, seal ring and spheroid, and it is characterized in that: described valve interior wall is provided with fan-shaped annular recess, and described seal ring is placed in groove, and described seal ring contacts with spheroid.
2. according to the black box of the described coordination tangent line sealing of claim 1, it is characterized in that: described groove is provided with fixing device by top.
3. according to the black box of the described coordination tangent line sealing of claim 1, it is characterized in that: described seal ring cross section is fan-shaped, is provided with the groove that links closely with described groove fit.
4. according to the black box of the described coordination tangent line sealing of claim 1, it is characterized in that: the sealing surface of described seal ring and spheroid face tangentially Elastic Contact are the crescent shape space between described seal ring and valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320282488 CN203363260U (en) | 2013-05-22 | 2013-05-22 | Seal assembly achieving sealing at position of tangent line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320282488 CN203363260U (en) | 2013-05-22 | 2013-05-22 | Seal assembly achieving sealing at position of tangent line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203363260U true CN203363260U (en) | 2013-12-25 |
Family
ID=49811024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320282488 Expired - Fee Related CN203363260U (en) | 2013-05-22 | 2013-05-22 | Seal assembly achieving sealing at position of tangent line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203363260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696540A (en) * | 2014-11-24 | 2015-06-10 | 宁波志清实业有限公司 | Combined type ball valve provided with corrugated pipe |
-
2013
- 2013-05-22 CN CN 201320282488 patent/CN203363260U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696540A (en) * | 2014-11-24 | 2015-06-10 | 宁波志清实业有限公司 | Combined type ball valve provided with corrugated pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20140522 |