CN2738054Y - Rubber flexible check valve - Google Patents
Rubber flexible check valve Download PDFInfo
- Publication number
- CN2738054Y CN2738054Y CN 200420075109 CN200420075109U CN2738054Y CN 2738054 Y CN2738054 Y CN 2738054Y CN 200420075109 CN200420075109 CN 200420075109 CN 200420075109 U CN200420075109 U CN 200420075109U CN 2738054 Y CN2738054 Y CN 2738054Y
- Authority
- CN
- China
- Prior art keywords
- water outlet
- water
- valve body
- rubber
- valve
- 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 discloses a rubber flexible check valve, comprising a valve body with a water inlet and a water outlet. The valve body is in an integral structure made of rubber material. The water inlet is in a circular structure. The water outlet is in a flat structure. The water inlet and the water outlet are communicated through a flat conical tube. The advantage of the utility model is that the entire valve body is in an integral structure made of rubber material. The elasticity of rubber material is used for forming the water outlet as a flat port. Thus, when in forward working, the water flows in from the water inlet, and the valve can be opened with tiny water pressure. The water pressure is larger, and the opening of the valve is bigger. On the other hand, when in backward working, when no water is discharged, the water outlet is self-closed under the action of rubber elasticity for sealing and stopping backflow. The back pressure is larger, the seal of the water outlet is tighter, and the sealing effect is better. When in use, the utility model does not need maintenance, and no corrosion problem exists. The work efficiency is greatly improved, and the operation cost is reduced.
Description
Technical field
The utility model relates to a kind of drainage check valve, especially relates to a kind of rubber flexible safety check.
Background technique
Drainage check valve is widely used in that municipal administration, water conservancy, sewage treatment etc. are various to go out water outlet, its objective is to prevent to pour in down a chimney, flow backwards.The drainage check valve that is used for this occasion at present mostly is the flap valve safety check, though this safety check can play above-mentioned purpose, but existing deficiency mainly show the operation and maintenance expenses higher, as the burn into of mechanical part open or closed condition under freeze and because valve distortion that the dregs plug causes etc.
Summary of the invention
The purpose of this utility model is to provide a kind of rubber flexible safety check at above-mentioned existing in prior technology deficiency.
For achieving the above object, the utility model can be taked following technical proposals:
Rubber flexible safety check described in the utility model, it comprises the valve body that has intake-outlet, the overall structure of described valve body for being made by rubber material; Described water intake is a round structure, and described water outlet is the flat structure; Water intake and water outlet link by flat Taper Pipe.
For further improving sealing effect, can be set to reclinate arcuate structure in described water outlet end.
Be connected with the waste pipe that has flange for convenient, be provided with the annular flange that extends radially outward, on described annular flange, offer attachment hole at the Kou Yanchu of described water intake.
Advantage of the present utility model is that whole valve body is the integrative-structure of being made by rubber material, and utilizes the elasticity water outlet of rubber material to be set to flat mouthful; Like this, forward work is, water is flowed into by water intake, and small hydraulic pressure can be opened valve, and the big more valve opening of hydraulic pressure is big more.And during reverse operation, when anhydrous discharge, water outlet is self-closing under the rubber elasticity effect, the sealing check; Back pressure is big more, and the water outlet sealing is tight more, and sealing effect is good more.The utility model in use need not maintenance, does not have etching problem.Improve working efficiency greatly, reduced operating cost.
Description of drawings
Fig. 1 cuts open figure for master of the present utility model.
Fig. 2 is the vertical view cutaway drawing of Fig. 1.
Fig. 3 is the right elevation of Fig. 1.
Embodiment
As shown in the figure, rubber flexible safety check described in the utility model, it comprises the valve body that has intake-outlet 1,2, the overall structure of described valve body for being made by rubber material; Described water intake 1 is a round structure, and described water outlet 2 is the flat structure; Water intake 1 links by flat Taper Pipe 3 with water outlet 2.For further improving sealing effect, can be set to reclinate arcuate structure in water outlet 2 ends.Be connected with the waste pipe that has flange for convenient, the place is provided with the annular flange 4 that extends radially outward on 1 mouthful of edge of water intake, offers attachment hole on described annular flange 4.
Claims (3)
1, a kind of rubber flexible safety check, it comprises the valve body that has intake-outlet (1,2), it is characterized in that: the overall structure of described valve body for being made by rubber material; Described water intake (1) is a round structure, and described water outlet (2) is the flat structure; Water intake (1) links by flat Taper Pipe (3) with water outlet (2).
2, rubber flexible safety check according to claim 1 is characterized in that: described water outlet (2) end is reclinate arcuate structure.
3, rubber flexible safety check according to claim 1 and 2 is characterized in that: be provided with the annular flange (4) that extends radially outward at described water intake (1) Kou Yanchu, offer attachment hole on described annular flange (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075109 CN2738054Y (en) | 2004-11-12 | 2004-11-12 | Rubber flexible check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075109 CN2738054Y (en) | 2004-11-12 | 2004-11-12 | Rubber flexible check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2738054Y true CN2738054Y (en) | 2005-11-02 |
Family
ID=35347964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420075109 Expired - Fee Related CN2738054Y (en) | 2004-11-12 | 2004-11-12 | Rubber flexible check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2738054Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359649A (en) * | 2011-11-02 | 2012-02-22 | 山东华腾环保科技有限公司 | Vacuum control valve |
| CN102392906A (en) * | 2011-11-17 | 2012-03-28 | 黄山市必利精密塑业科技有限公司 | One-way valve |
| CN104727899A (en) * | 2014-07-25 | 2015-06-24 | 马勒技术投资(中国）有限公司 | Novel one-way valve |
-
2004
- 2004-11-12 CN CN 200420075109 patent/CN2738054Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359649A (en) * | 2011-11-02 | 2012-02-22 | 山东华腾环保科技有限公司 | Vacuum control valve |
| CN102392906A (en) * | 2011-11-17 | 2012-03-28 | 黄山市必利精密塑业科技有限公司 | One-way valve |
| CN104727899A (en) * | 2014-07-25 | 2015-06-24 | 马勒技术投资(中国）有限公司 | Novel one-way 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: 20051102 Termination date: 20111112 |