CN201610964U - Self-closing check valve - Google Patents
Self-closing check valve Download PDFInfo
- Publication number
- CN201610964U CN201610964U CN2009202986471U CN200920298647U CN201610964U CN 201610964 U CN201610964 U CN 201610964U CN 2009202986471 U CN2009202986471 U CN 2009202986471U CN 200920298647 U CN200920298647 U CN 200920298647U CN 201610964 U CN201610964 U CN 201610964U
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- CN
- China
- Prior art keywords
- valve
- valve body
- self
- gas
- liquid
- 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 provides a self-closing check valve, which comprises a valve body and a valve cap and is characterized in that an explanate valve piece is buckled on a valve body circulating port through a chock, wherein, the valve cap and the valve body are combined in a threaded manner; and a seal ring is arranged between the valve cap and the valve body. The self-closing check valve has the benefits that the explanate valve piece achieves good self-recovery elasticity and is made of special rubbers with oil resistance, acid- and alkali-resistance, hydrolysis resistance and ozone resistance; when gas (liquid) flows forward, the gas (liquid) pushes the valve piece open easily and circulates unceasingly; and when gas (liquid) is cut out, the valve piece is closed automatically, that is, the valve body circulating port is sealed up, and fluid backflow is obstructed, so that a return spring is unnecessary to be adopted. The valve piece can be replaced, and the maintenance is convenient.
Description
Technical field
The utility model relates to a kind of valve, specifically is a kind of self-closing one-way valve.
Background technique
In pipeline, control the baby check valve of a kind of fluid (gas or liquid) one-way flow at present, its basic structure be can't do without a backspring, props up spherical flap or plane flap with backspring.The one-way valve of this structure exists a common defective, because of backspring elastic force conformity is difficult to guarantee that the big slightly fluid of elastic force pushes up not open flap; Elastic force is slightly little, seals bad retrograde fluid and pours in down a chimney easily.
The model utility content
The purpose of this utility model is to overcome the above-mentioned defective that prior art exists, and a kind of self-closing one-way valve without backspring is provided, its good seal, and retrograde fluid is difficult for pouring in down a chimney.
The utility model is achieved by the following technical solution: construct a kind of self-closing one-way valve, comprise valve body and valve gap, it is characterized in that: open and flat valve block is withheld in the valve body communication port by chock, and wherein valve gap combines with the valve body screw thread, and between valve gap and valve body seal ring is arranged.
The beneficial effects of the utility model are that open and flat valve block is from recovering good springiness, and material selects oil resistant, acid resistant alkali, hydrolysis resistance, ozone proof special rubber to make, and when the following current of gas (liquid) body, gas (liquid) body backs down valve block easily, constantly circulation; During cutout, the valve block auto-closing is promptly sealed the valve body communication port, cuts off fluid and pours in down a chimney, and therefore just need not use backspring.Valve block can be replaced, and is easy to maintenance.
Description of drawings
Fig. 1 is present embodiment sectional view figure
Fig. 2 is the plan view after present embodiment removes valve gap.
Among the figure: 1, valve body, 2, valve block, 3, valve gap, 4, chock, 5, seal ring, 6, the valve body communication port
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.
Shown in Fig. 1-2, a kind of self-closing one-way valve comprises valve body 1 and valve gap 3, and open and flat valve block 2 is withheld in valve body communication port 6 by chock 4.The open and flat always valve body communication port 6 of sealing of valve block 2, fluid backs down valve block 2 very like a cork, in case fluid stops to flow, valve block 2 is self-closing, cuts off the fluid that pours in down a chimney.Referring to Fig. 1, valve gap 3 combines with valve body 1 screw thread, is convenient to demolition and safeguards.Between valve gap 3 and the valve body 1 seal ring 5 is arranged, seal ring 5 plays seal action between valve gap 3 and valve body 1.The beneficial effects of the utility model are open and flat valve block from recovering good springiness, and material selects oil resistant, acid resistant alkali, hydrolysis resistance, ozone proof special rubber to make, and when the following current of gas (liquid) body, gas (liquid) body backs down valve block easily, constantly circulation; During cutout, the valve block auto-closing is promptly sealed the valve body communication port, cuts off fluid and pours in down a chimney, and therefore just need not use backspring.Valve block can be replaced, and is easy to maintenance.
Claims (1)
1. self-closing one-way valve, comprise valve body (1) and valve gap (3), it is characterized in that: open and flat valve block (2) is withheld in valve body communication port (6) by chock (4), and wherein valve gap (3) combines with valve body (1) screw thread, and between valve gap (3) and valve body (1) seal ring (5) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202986471U CN201610964U (en) | 2009-12-30 | 2009-12-30 | Self-closing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202986471U CN201610964U (en) | 2009-12-30 | 2009-12-30 | Self-closing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201610964U true CN201610964U (en) | 2010-10-20 |
Family
ID=42961598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202986471U Expired - Fee Related CN201610964U (en) | 2009-12-30 | 2009-12-30 | Self-closing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201610964U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790817A (en) * | 2014-01-15 | 2014-05-14 | 北京科技大学 | Automatic open/close valve and vibration type liquid pump with automatic open/close valve applied |
| CN106577184A (en) * | 2017-02-21 | 2017-04-26 | 闫婷婷 | Modern agricultural drop irrigation system without energy consumption |
-
2009
- 2009-12-30 CN CN2009202986471U patent/CN201610964U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790817A (en) * | 2014-01-15 | 2014-05-14 | 北京科技大学 | Automatic open/close valve and vibration type liquid pump with automatic open/close valve applied |
| CN106577184A (en) * | 2017-02-21 | 2017-04-26 | 闫婷婷 | Modern agricultural drop irrigation system without energy consumption |
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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: 20101020 Termination date: 20101230 |