CN203477476U - Rotating-off type check valve - Google Patents
Rotating-off type check valve Download PDFInfo
- Publication number
- CN203477476U CN203477476U CN201320612741.6U CN201320612741U CN203477476U CN 203477476 U CN203477476 U CN 203477476U CN 201320612741 U CN201320612741 U CN 201320612741U CN 203477476 U CN203477476 U CN 203477476U
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- China
- Prior art keywords
- valve
- rotating shaft
- valve body
- rotating
- flap
- 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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- Check Valves (AREA)
Abstract
The utility model relates to a rotating-off type check valve. The rotating-off type check valve comprises a valve body, a valve clack, a valve cover and a rocker. A valve seat is arranged on a channel opening in the inlet side of the valve body, the valve clack and the valve seat are provided with sealing faces which are matched with each other, and the back face of the valve clack is connected with one end of the rocker. The rotating-off type check valve is characterized in that the other end of the rocker is fixedly connected with a rotating shaft, the two ends of the rotating shaft are respectively installed inside a shaft hole in the upper side of a valve body channel through a bearing in a sealed mode, one end of the rotating shaft extends out of the valve body and is fixedly connected with a heavy punch mechanism, the valve clack is connected with the heavy punch mechanism through the rotating shaft, the sealing force between the valve clack and the valve seat is improved, and the sealing performance is good. The rotating-off type check valve is suitable for being used a control valve on a one-way flow medium pipeline to prevent medium backflow.
Description
Technical field
The utility model relates to valve field, specifically about a kind of Swing check valve.
Background technique
Safety check is on one-way flow medium pipeline, to be used for preventing the control valve that medium flows backwards, Swing check valve is one of the most general structure, its structure comprises valve body, flap, valve gap, rocking arm, valve body inlet passage mouth is provided with valve seat, flap and valve seat have the sealing surface cooperatively interacting, the flap back side is connected with rocking arm one end, and the other end of rocking arm is connected with rotating shaft, and rotating shaft is arranged in valve body.During forward medium, pressure medium promotes flap and opens, and during backpressure, flap is closed under deadweight and reverse media pressure-acting, prevents medium reverse flow.Its major defect is that flap relies on deadweight and reverse media pressure and valve seat press seal, and under low piezodielectric operating mode, sealing force is little, poor sealing performance, and easily leaks.
Summary of the invention
The purpose of this utility model is the shortcoming existing for prior art, provides that a kind of sealing force is large, the reliable Swing check valve of sealability.
The technical solution of the utility model comprises valve body, flap, valve gap, rocking arm, valve body suction side passway is provided with valve seat, flap and valve seat have the sealing surface cooperatively interacting, the flap back side is connected with rocking arm one end, it is characterized in that the rocking arm the other end is fixedly connected with rotating shaft, rotating shaft two ends are arranged in the axis hole of valve channel upside by bearing seal respectively, and rotating shaft one end is stretched out valve body outside and is fixedly connected with heavy hammer mechanism.
In above technological scheme, the valve pocket inwall of valve outlet passage is provided with block.
The utility model has the advantages that flap connects heavy hammer mechanism by rotating shaft, increase the sealing force between flap and valve seat, good seal performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Swing check valve as shown in Figure 1, comprise valve body 1, flap 2, valve gap 4, rocking arm 3, valve body 1 suction side passway is provided with valve seat, flap 2 has with valve seat the sealing surface cooperatively interacting, flap 2 back sides are connected with rocking arm 3 one end, rocking arm 3 the other ends are fixedly connected with rotating shaft 7, rotating shaft 7 two ends are arranged in the axis hole of valve body 1 passage upside by bearing seal respectively, rotating shaft 7 can be rotated freely in axis hole, rotating shaft 7 one end are stretched out valve body 1 outside and are fixedly connected with heavy hammer mechanism 5, when flap 2 is closed, the weight of heavy hammer mechanism 5 increases the sealing force between flap 2 and valve seat, improve sealability, particularly improve the medium-tight performance under low pressure operating mode.The valve pocket inwall of valve body 1 outlet passage is provided with block 6, the lifting position of these block 6 restriction flaps 2.
Claims (2)
1. a Swing check valve, comprise valve body (1), flap (2), valve gap (4), rocking arm (3), valve body (1) suction side passway is provided with valve seat, flap (2) has with valve seat the sealing surface cooperatively interacting, flap (2) back side is connected with rocking arm (3) one end, it is characterized in that rocking arm (3) the other end is fixedly connected with rotating shaft (7), rotating shaft (7) two ends are arranged in the axis hole of valve body (1) passage upside by bearing seal respectively, and rotating shaft (7) one end is stretched out valve body (1) outside and is fixedly connected with heavy hammer mechanism (5).
2. Swing check valve according to claim 1, is characterized in that the valve pocket inwall of valve body (1) outlet passage is provided with block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320612741.6U CN203477476U (en) | 2013-09-25 | 2013-09-25 | Rotating-off type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320612741.6U CN203477476U (en) | 2013-09-25 | 2013-09-25 | Rotating-off type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477476U true CN203477476U (en) | 2014-03-12 |
Family
ID=50225807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320612741.6U Expired - Fee Related CN203477476U (en) | 2013-09-25 | 2013-09-25 | Rotating-off type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477476U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931194A (en) * | 2015-12-31 | 2017-07-07 | 中国核动力研究设计院 | A kind of check-valves that valve flap structure is opened with low voltage difference |
| CN108139092A (en) * | 2015-09-25 | 2018-06-08 | 三星电子株式会社 | Dehumidifier |
| CN112145710A (en) * | 2019-06-28 | 2020-12-29 | 中国舰船研究设计中心 | Titanium alloy exhaust flap valve |
| CN114001182A (en) * | 2021-11-17 | 2022-02-01 | 中国核动力研究设计院 | Low flow resistance small pressure difference check valve |
-
2013
- 2013-09-25 CN CN201320612741.6U patent/CN203477476U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108139092A (en) * | 2015-09-25 | 2018-06-08 | 三星电子株式会社 | Dehumidifier |
| CN108139092B (en) * | 2015-09-25 | 2020-11-10 | 三星电子株式会社 | Dehumidifier |
| CN106931194A (en) * | 2015-12-31 | 2017-07-07 | 中国核动力研究设计院 | A kind of check-valves that valve flap structure is opened with low voltage difference |
| CN112145710A (en) * | 2019-06-28 | 2020-12-29 | 中国舰船研究设计中心 | Titanium alloy exhaust flap valve |
| CN112145710B (en) * | 2019-06-28 | 2022-04-08 | 中国舰船研究设计中心 | Titanium alloy exhaust flap valve |
| CN114001182A (en) * | 2021-11-17 | 2022-02-01 | 中国核动力研究设计院 | Low flow resistance small pressure difference check valve |
| CN114001182B (en) * | 2021-11-17 | 2024-01-30 | 中国核动力研究设计院 | Low flow resistance small pressure difference check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20200925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |