CN203926848U - The Lift check valve of valve with changeable valve seat, flap - Google Patents
The Lift check valve of valve with changeable valve seat, flap Download PDFInfo
- Publication number
- CN203926848U CN203926848U CN201420304830.9U CN201420304830U CN203926848U CN 203926848 U CN203926848 U CN 203926848U CN 201420304830 U CN201420304830 U CN 201420304830U CN 203926848 U CN203926848 U CN 203926848U
- Authority
- CN
- China
- Prior art keywords
- valve
- hole
- flap
- valve body
- valve seat
- 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
Links
- 239000012530 fluid Substances 0.000 claims abstract description 29
- 241001633942 Dais Species 0.000 claims abstract description 15
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 238000010030 laminating Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model relates to the Lift check valve of a kind of valve with changeable valve seat, flap, is provided with the shoulder hole of upper opening at the vertical center of valve body, and the excircle of valve seat is connected with valve seal by O type circle; On valve seat, be provided with guide sleeve, which is provided with the through hole of circle distribution, the position of through hole is corresponding with the position of fluid output; In guide sleeve, coaxial cooperation has flap, and the bottom surface conical surface of flap is landed on the conical surface of valve seat top; Top at flap is provided with center hole, and the excircle of flap is provided with uniform small through hole, and small through hole communicates with center hole; Above valve body, be flexibly connected valve gap, the limit dais on it is connected with valve seal, and the bottom surface of limit dais contacts with guide sleeve end face, is provided with blind hole in limit dais bottom surface, is provided with spring in it, and the below of spring is arranged in the center hole of flap.This safety check adopts live valve seat, valve flap structure, after it damages, can change, therefore reach easy to maintenance, increases the object of life of valve.
Description
Technical field
The utility model relates to the Lift check valve of a kind of valve with changeable valve seat, flap, belongs to a kind of device as stoping the reverse flow of pipeline medium.
Background technique
Safety check is Xinjiang Oilfield water filling design, and its valve seat of safety check and the flap that used are respectively fixing linkage structure, its maintenance difficult in the past.Particularly the safety check of welded and installed cannot keep in repair at all, can only slice off and more renew valve, has not only wasted a large amount of manpower and materials, and has improved maintenance cost.
Summary of the invention
The technical problems to be solved in the utility model is to provide the Lift check valve of a kind of valve with changeable valve seat, flap, and this safety check adopts live valve seat, valve flap structure, after it damages, can change, therefore reach easy to maintenance, increases the object of life of valve.
For overcoming the above problems, concrete technological scheme of the present utility model is as follows: the Lift check valve of a kind of valve with changeable valve seat, flap, be provided with the shoulder hole of upper opening at the vertical center of valve body, the fluid input of valve body communicates with the below of shoulder hole, and the fluid output of valve body communicates with the top of shoulder hole; The valve seat of having taken a seat on the ladder platform of shoulder hole, the excircle of valve seat is connected with valve seal by O type circle, and its flap is between fluid input and fluid output; On valve seat, be provided with guide sleeve, guide sleeve is provided with the through hole of circle distribution, and the position of through hole is corresponding with the position of fluid output; In guide sleeve, coaxial cooperation has flap, and the bottom surface conical surface of flap is landed on the conical surface of valve seat top; Top at flap is provided with center hole, and the excircle of flap is provided with uniform small through hole, and small through hole communicates with center hole; Above valve body, be flexibly connected valve gap, the bottom of valve gap is provided with limit dais, and the excircle of limit dais is connected with valve seal by O type circle, the bottom surface of limit dais contacts with guide sleeve end face, be provided with blind hole in limit dais bottom surface, be provided with spring in it, the below of spring is arranged in the center hole of flap.
The fluid input at the two ends of described valve body is respectively the parallel oblique through hole of axis with fluid output, and has the end flange of horizontal through hole at valve end welding center, and the horizontal through hole of end flange is corresponding with the oblique lead to the hole site of valve body.
This valve body adopts guide sleeve to carry out spacing valve seat construction alive, and flap is by the linkage structure of spring and valve gap, makes valve seat and flap be easy to change, easy to maintenance.
The Lift check valve of this valve with changeable valve seat, flap adopts forging bond pads method to do straight-through type valve body, and its valve body life-span is long, and machining accuracy is high.
Brief description of the drawings
Fig. 1 is the structural representation of the Lift check valve of valve with changeable valve seat, flap.
Embodiment
As shown in Figure 1, the Lift check valve of a kind of valve with changeable valve seat, flap, is provided with the shoulder hole of upper opening at the vertical center of valve body 1, and the fluid input 7 of valve body 1 communicates with the below of shoulder hole, and the fluid output 8 of valve body 1 communicates with the top of shoulder hole; The valve seat 2 of having taken a seat on the ladder platform of shoulder hole, the excircle of valve seat 2 is tightly connected by O type circle and valve body 1, its flap 3 is between fluid input 7 and fluid output 8, in the time that flap 3 is opened, fluid input 7 communicates with fluid output 8, after flap 3 and valve seat 2 are closed, in valve body, liquid is truncated; On valve seat 2, be provided with guide sleeve 4, guide sleeve 4 is provided with the through hole of circle distribution, and the position of through hole is corresponding with the position of fluid output 8, and guide sleeve plays the leading role to flap on the one hand, plays on the other hand the effect spacing to valve seat 2; Have flap 3 in the interior coaxial cooperation of guide sleeve 4, flap 3, forms sealing and pays with conical surface laminating with valve seat 2; Top at flap 3 is provided with center hole, and the excircle of flap 3 is provided with uniform small through hole, and small through hole communicates with center hole, thereby ensures that the pressure of flap top is consistent with excircle; Above valve body 1, be flexibly connected valve gap 6, the bottom of valve gap 6 is provided with limit dais, the excircle of limit dais is tightly connected by O type circle and valve body 1, the bottom surface of limit dais contacts with guide sleeve 4 end faces, be provided with blind hole in limit dais bottom surface, in it, be provided with spring 5, the below of spring 5 is arranged in the center hole of flap 3, and spring produces the power resetting to flap.
The fluid input 7 at the two ends of described valve body 1 is respectively the parallel oblique through hole of axis with fluid output 8, and has the end flange 9 of horizontal through hole at valve body 1 welding center, end, and the horizontal through hole of end flange 9 is corresponding with the oblique lead to the hole site of valve body 1.Concrete is that valve body 1 is forged blank, and valve body both sides are oblique through hole, cut °-30 ° of angles, angle [alpha]=25 of through hole, and end flange 9 is standard processing, and ensures that the overall length of valve body is L and meets standard; Wherein valve body 1 adopts U-shaped weld seam with end flange, radiological survey X weld seam, and timeliness eliminates stress.
Its working procedure is: when the liquid of fluid input 7 has certain pressure, by flap 3 jack-up, and flow out by fluid output 8; When the fluid pressure of fluid input in pipeline 7 is decreased to the pressure of spring 5 to flap, flap 3 is closed, thereby prevents the liquid backflow in fluid output 8.
Claims (2)
1. the Lift check valve of a valve with changeable valve seat, flap, it is characterized in that: the shoulder hole that is provided with upper opening at the vertical center of valve body (1), the fluid input (7) of valve body (1) communicates with the below of shoulder hole, and the fluid output (8) of valve body (1) communicates with the top of shoulder hole; The valve seat (2) of having taken a seat on the ladder platform of shoulder hole, the excircle of valve seat (2) is tightly connected by O type circle and valve body (1), and its flap (3) is positioned between fluid input (7) and fluid output (8); On valve seat (2), be provided with guide sleeve (4), guide sleeve (4) is provided with the through hole of circle distribution, and the position of through hole is corresponding with the position of fluid output (8); In guide sleeve (4), coaxial cooperation has flap (3), the upper conical surface laminating of the lower end conical surface of flap (3) and valve seat (2); Top at flap (3) is provided with groove, and the excircle of flap (3) is provided with uniform small through hole, and small through hole communicates with groove; Be flexibly connected valve gap (6) in valve body (1) top, the bottom of valve gap (6) is provided with limit dais, the excircle of limit dais is tightly connected by O type circle and valve body (1), the bottom surface of limit dais contacts with guide sleeve (4) end face, be provided with blind hole in limit dais bottom surface, in this blind hole, be provided with spring (5), the below of spring (5) is arranged in the center hole of flap (3).
2. the Lift check valve of valve with changeable valve seat as claimed in claim 1, flap, it is characterized in that: the fluid input (7) at the two ends of described valve body (1) is respectively the parallel oblique through hole of axis with fluid output (8), and thering is the end flange (9) of horizontal through hole at welding center, valve body (1) end, the horizontal through hole of end flange (9) is corresponding with the oblique lead to the hole site of valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420304830.9U CN203926848U (en) | 2014-06-10 | 2014-06-10 | The Lift check valve of valve with changeable valve seat, flap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420304830.9U CN203926848U (en) | 2014-06-10 | 2014-06-10 | The Lift check valve of valve with changeable valve seat, flap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926848U true CN203926848U (en) | 2014-11-05 |
Family
ID=51822660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420304830.9U Expired - Fee Related CN203926848U (en) | 2014-06-10 | 2014-06-10 | The Lift check valve of valve with changeable valve seat, flap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623441A (en) * | 2021-10-08 | 2021-11-09 | 南通国电阀门科技有限公司 | Lifting check valve convenient for replacing spring |
-
2014
- 2014-06-10 CN CN201420304830.9U patent/CN203926848U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623441A (en) * | 2021-10-08 | 2021-11-09 | 南通国电阀门科技有限公司 | Lifting check valve convenient for replacing spring |
| CN113623441B (en) * | 2021-10-08 | 2021-12-10 | 南通国电阀门科技有限公司 | Lifting check valve convenient for replacing spring |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 |