CN2755383Y - Check valve of rubber pipeline - Google Patents
Check valve of rubber pipeline Download PDFInfo
- Publication number
- CN2755383Y CN2755383Y CN 200420062778 CN200420062778U CN2755383Y CN 2755383 Y CN2755383 Y CN 2755383Y CN 200420062778 CN200420062778 CN 200420062778 CN 200420062778 U CN200420062778 U CN 200420062778U CN 2755383 Y CN2755383 Y CN 2755383Y
- Authority
- CN
- China
- Prior art keywords
- lip
- safety check
- valve pocket
- sideline
- utility
- 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 rubber check valve for pipelines, which comprises a valve sleeve (1) and a valve body (2) in the valve sleeve, wherein two lip edges (4) are closed to form a lip edge line (3) in the position of a water outlet of the valve body. The utility model is characterized in that the lip edge line (3) is formed by the symmetrical connection of semicircular curves with the number of even more than 2, 4, 6, 8 and 10 or two frieze lines of an isosceles triangle, wherein the semicircular curves are symmetrical to a vertical and a horizontal center lines. The utility model has the advantages of simple structure and convenient installation, is directly arranged in universal pipelines and is convenient for the seriation of product standards.
Description
Technical field
The utility model relates to the pipeline rubber safety check of the unidirectional control of current of hydraulic engineering, urban water supply and sewerage, environment protection sewage processing.
Background technique
At present, the lip sideline was the straight line section when existing pipeline rubber safety check lip limit was closed, valve pocket stage casing flare, if the rubber safety check of this shape just must reduce 30% with lip limit girth in the universal pipes of directly packing into, flow area dwindles 60%, in order to guarantee that flow area does not reduce, the valve pocket water outlet of this kind safety check is added reduction center in addition, make its complex structure, cost increases, and can not directly install with the pipeline of original typing.
Summary of the invention
In order to overcome prior art inconvenience, complex structure are installed, can not with the shortcoming of the supporting installation of original typing pipeline, the utility model provides a kind of installation easy, wide accommodation does not reduce the pipeline rubber safety check of flow area.
The technical solution of the utility model is: a kind of pipeline rubber safety check, mainly comprise the valve body in valve pocket and the valve pocket, the water outlet place of valve body is closed into the lip sideline by two lip limits, it is characterized in that the lip sideline is that half-round curve or the isosceles triangle two stringcourses dislocation symmetry that is symmetrical in 2,4,6,8,10 above even numbers of vertical and horizontal center line is formed by connecting.
Outside, the lip limit girth on both sides, lip sideline is less than or equal to valve pocket internal diameter circumference.The drift angle of isosceles triangle is 80-84 °.Valve pocket is straight tubular, can directly be installed in the universal pipes.
After adopting above technological scheme, the beneficial effect that the utility model reaches is: will have straight line lip sideline now and change serpentine lip sideline into, the length in lip sideline does not reduce, and makes valve pocket by the existing tubaeform straight tubular that changes into, keep flow area, need not add reduction center, can directly be connected with universal pipes, easy for installation, simple in structure, widely applicable, save cost, be convenient to the product standard seriation.
Description of drawings
Fig. 1,2 structural representations for existing safety check.
Fig. 3,4 is the structural representation of a kind of mode of execution of the utility model.
Fig. 5,6 is the structural representation of the another kind of mode of execution of the utility model.
Among Fig. 1,2,3,4,5,6, valve pocket 1, valve body 2, lip sideline 3, lip limit 4, water outlet 5.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
This safety check with the existing lip of straight line as shown in Figure 1, 2 sideline change into as Fig. 3,4 or curve lip sideline shown in Fig. 5,6 after, valve pocket changes straight tubular into, directly is connected with universal pipes.During unlatching, the lip limit is towards the from bottom to top order unlatching of valve pocket internal diameter direction, and water flows out from the valve pocket water outlet.When closed, the lip limit from bottom to top order from vertical center line direction closure, the unidirectional current of closing.
Claims (4)
1, a kind of pipeline rubber safety check, mainly comprise the valve body (2) in valve pocket (1) and the valve pocket, the water outlet place (5) of valve body is closed into lip sideline (3) by two lip limits (4), it is characterized in that: described lip sideline (3) is that the half-round curve or the isosceles triangle two stringcourses dislocation symmetry that are symmetrical in 2,4,6,8,10 above even numbers of vertical and horizontal center line are formed by connecting.
2, a kind of pipeline rubber safety check according to claim 1 is characterized in that: outside, lip limit (4) girth on both sides, described lip sideline is less than or equal to valve pocket (1) internal diameter circumference.
3, a kind of pipeline rubber safety check according to claim 1, it is characterized in that: the drift angle of described isosceles triangle is 80-84 °.
4, a kind of pipeline rubber safety check according to claim 1 is characterized in that: described valve pocket (1) is straight tubular, can directly be installed in the universal pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420062778 CN2755383Y (en) | 2004-07-08 | 2004-07-08 | Check valve of rubber pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420062778 CN2755383Y (en) | 2004-07-08 | 2004-07-08 | Check valve of rubber pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2755383Y true CN2755383Y (en) | 2006-02-01 |
Family
ID=35929011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420062778 Expired - Fee Related CN2755383Y (en) | 2004-07-08 | 2004-07-08 | Check valve of rubber pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2755383Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101675281B (en) * | 2007-05-07 | 2011-11-16 | 艾安·德拉库普·多伊格 | Duckbill type check valve with curved and resiliently biased closing seal |
-
2004
- 2004-07-08 CN CN 200420062778 patent/CN2755383Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101675281B (en) * | 2007-05-07 | 2011-11-16 | 艾安·德拉库普·多伊格 | Duckbill type check valve with curved and resiliently biased closing seal |
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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: 20060201 Termination date: 20090708 |