CN202338665U - Butterfly check valve - Google Patents
Butterfly check valve Download PDFInfo
- Publication number
- CN202338665U CN202338665U CN2011204147897U CN201120414789U CN202338665U CN 202338665 U CN202338665 U CN 202338665U CN 2011204147897 U CN2011204147897 U CN 2011204147897U CN 201120414789 U CN201120414789 U CN 201120414789U CN 202338665 U CN202338665 U CN 202338665U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- seal ring
- seal groove
- shell fragment
- 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 butterfly check valve comprising a valve body, wherein the upper side of the valve body is provided with a through hole and connected with a valve cap; two ends of the valve body are respectively provided with a connecting flange; the valve body is internally provided with a valve plug in a rotating way; the left side surface of the valve plug is provided with a seal groove; a seal ring is embedded in the seal groove; the valve body is internally provided with a retaining stage; the seal ring is matched with the retaining stage to implement sealing; the inner side of a right opening of the valve body is fixedly connected with an elastic sheet; a gravity block is fixed at the upper side of the elastic sheet; the seal ring extends out of the seal groove; and the valve plug is in elastic contact with the elastic sheet when rotating to the highest position. The butterfly check valve is simple in structure, easy to manufacture and excellent in backflow prevention; and by adoption of the elastic sheet, the valve plug is safer and the safety of the valve is enhanced.
Description
Technical field:
The utility model relates to valve field, and concrete is a kind of dish formula safety check.
Background technique:
Safety check is claimed one-way valve or check valve again, and its effect is to prevent that the medium in the pipeline from flowing backwards, and open-shut device leans on media flow and strength to open voluntarily or close, with the valve that prevents the medium refluence 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.When suction side pressure was lower than outlet side, flap automatic close preventing fluid under factor effects such as fluid pressure difference, gravity own flow backwards.
The model utility content:
It is a kind of simple in structure that the utility model provides, and makes simply the anti-good dish formula safety check of backflow effect.
The technological scheme of the utility model:
Dish formula safety check comprises valve body, and the valve body upside is provided with through hole and is connected with valve gap; The valve body two ends are provided with adpting flange, it is characterized in that: be rotatablely equipped with spool in the described valve body, described spool left surface is provided with seal groove; Be inlaid with seal ring in the described seal groove, be provided with the resistance platform in the described valve body, described seal ring cooperates described resistance platform sealing; The right oral area of described valve body inboard is fixedly connected with shell fragment, and the shell fragment upside is fixed with gravity block.
Described dish formula safety check, it is characterized in that: described seal ring stretches out described seal groove; During described valve core rotation to extreme higher position, the described shell fragment of its Elastic Contact.
The advantage of the utility model:
The utility model is simple in structure, makes simply, and anti-backflow effect is good, and the use of shell fragment makes spool safer, has improved the safe of valve.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Embodiment:
Referring to accompanying drawing: dish formula safety check, comprise valve body 1, valve body 1 upside is provided with through hole and is connected with valve gap 2; Valve body 1 two ends are provided with adpting flange, are rotatablely equipped with spool 3 in the described valve body 1, and described spool 3 left surfaces are provided with seal groove; Be inlaid with seal ring 4 in the described seal groove; Be provided with resistance platform 5 in the described valve body 1, described seal ring 4 cooperates described resistance platform 5 sealings, and described valve body 1 right oral area inboard is fixedly connected with shell fragment 6; Shell fragment 6 upsides are fixed with gravity block 7, and seal ring 4 stretches out described seal groove; When described spool 3 turns to the extreme higher position, the described shell fragment 6 of its Elastic Contact.
Claims (2)
1. dish formula safety check comprises valve body, and the valve body upside is provided with through hole and is connected with valve gap; The valve body two ends are provided with adpting flange, it is characterized in that: be rotatablely equipped with spool in the described valve body, described spool left surface is provided with seal groove; Be inlaid with seal ring in the described seal groove, be provided with the resistance platform in the described valve body, described seal ring cooperates described resistance platform sealing; The right oral area of described valve body inboard is fixedly connected with shell fragment, and the shell fragment upside is fixed with gravity block.
2. dish formula safety check according to claim 1, it is characterized in that: described seal ring stretches out described seal groove; During described valve core rotation to extreme higher position, the described shell fragment of its Elastic Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204147897U CN202338665U (en) | 2011-10-27 | 2011-10-27 | Butterfly check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204147897U CN202338665U (en) | 2011-10-27 | 2011-10-27 | Butterfly check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338665U true CN202338665U (en) | 2012-07-18 |
Family
ID=46487357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204147897U Expired - Fee Related CN202338665U (en) | 2011-10-27 | 2011-10-27 | Butterfly check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338665U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122636A (en) * | 2016-08-30 | 2016-11-16 | 张家港华日法兰有限公司 | A kind of anti-return high-pressure pipe member of band reinforcement |
| CN106122635A (en) * | 2016-08-30 | 2016-11-16 | 张家港华日法兰有限公司 | A kind of high-pressure pipe member |
-
2011
- 2011-10-27 CN CN2011204147897U patent/CN202338665U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122636A (en) * | 2016-08-30 | 2016-11-16 | 张家港华日法兰有限公司 | A kind of anti-return high-pressure pipe member of band reinforcement |
| CN106122635A (en) * | 2016-08-30 | 2016-11-16 | 张家港华日法兰有限公司 | A kind of high-pressure pipe member |
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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: 20120718 Termination date: 20151027 |
|
| EXPY | Termination of patent right or utility model |