CN202927159U - Seal structure for spherical check valve - Google Patents
Seal structure for spherical check valve Download PDFInfo
- Publication number
- CN202927159U CN202927159U CN 201220542262 CN201220542262U CN202927159U CN 202927159 U CN202927159 U CN 202927159U CN 201220542262 CN201220542262 CN 201220542262 CN 201220542262 U CN201220542262 U CN 201220542262U CN 202927159 U CN202927159 U CN 202927159U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- valve body
- seal
- check valve
- wall
- 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 discloses a seal structure for a spherical check valve. The seal structure comprises a valve body, an annular protrusion is arranged on the inner wall of an opening portion of the valve body, a connection seal ring is arranged on the inner wall of the port portion of the valve body, the annular protrusion is wrapped in the seal ring, an arc inclined port at the lower port portion of the seal ring is matched and sealed with a sphere, and a rubber seal layer is wrapped on the outside of the sphere, so that when the sphere is contacted with the seal ring, the seal structure is good in seal effect, simple in structure, high in safety, high in seal performance and long in service life.
Description
Technical field
The utility model relates to valve technology field, relates in particular to a kind of ball check valve sealing configuration.
Background technique
Safety check claims again one-way valve or check valve, and its effect is to prevent that the medium in pipeline from flowing backwards, and open-shut device is opened voluntarily or closes by media flow and strength, to prevent that valve that medium flows backwards is on safety check.Safety check belongs to the self-acting valve class, is mainly used on the pipeline of medium one-way flow, only allows medium to flow to a direction, to try to avert accidents.
The flap of safety check is opened under fluid pressure action, and fluid flows to outlet side from suction side.During lower than outlet side, flap autoshutdown under the factor effects such as fluid pressure difference, gravity own flows backwards to prevent fluid when suction side pressure.The sealing that guarantees safety check is well very important.
The model utility content
The utility model purpose is exactly in order to make up the defective of prior art, a kind of ball check valve sealing configuration of good seal to be provided.
The utility model is achieved through the following technical solutions:
A kind of ball check valve sealing configuration, comprise valve body, described valve body mouth inner wall is provided with annular protrusion, connect seal ring on described valve body mouth inner wall, described seal ring is coated on its inside with described annular protrusion, the sealing that coincide of described seal ring infraoral arc angle and spheroid, described spheroid outside is coated with rubber sealant.
Described valve body end face is provided with annular groove, is inlaid with seal ring in annular groove.
The utility model has the advantages that: the utility model is coated with rubber sealant by the outside at spheroid, and when spheroid contacted with seal ring, sealing effect was better, and is simple in structure, safe, and sealability is high, long service life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of ball check valve sealing configuration, comprise valve body 1, described valve body 1 mouth inner wall is provided with annular protrusion 2, connect seal ring 3 on described valve body 1 mouth inner wall, described seal ring 3 is coated on its inside with described annular protrusion 2, described seal ring 3 infraoral arc angles and spheroid 4 sealing that coincide, and described spheroid 4 outsides are coated with rubber sealant 6.
Described valve body 1 end face is provided with annular groove, is inlaid with seal ring 5 in annular groove.
Claims (2)
1. ball check valve sealing configuration, comprise valve body, it is characterized in that: described valve body mouth inner wall is provided with annular protrusion, connect seal ring on described valve body mouth inner wall, described seal ring is coated on its inside with described annular protrusion, the sealing that coincide of described seal ring infraoral arc angle and spheroid, described spheroid outside is coated with rubber sealant.
2. ball check valve sealing configuration according to claim 1, it is characterized in that: described valve body end face is provided with annular groove, is inlaid with seal ring in annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220542262 CN202927159U (en) | 2012-10-22 | 2012-10-22 | Seal structure for spherical check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220542262 CN202927159U (en) | 2012-10-22 | 2012-10-22 | Seal structure for spherical check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202927159U true CN202927159U (en) | 2013-05-08 |
Family
ID=48217119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220542262 Expired - Fee Related CN202927159U (en) | 2012-10-22 | 2012-10-22 | Seal structure for spherical check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202927159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335139A (en) * | 2013-07-04 | 2013-10-02 | 上海国泰阀门厂有限公司 | Guiding type ball-shaped check valve |
-
2012
- 2012-10-22 CN CN 201220542262 patent/CN202927159U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335139A (en) * | 2013-07-04 | 2013-10-02 | 上海国泰阀门厂有限公司 | Guiding type ball-shaped check valve |
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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: 20130508 Termination date: 20131022 |