CN203743477U - V-type ball valve for two-way sealing of single valve seat - Google Patents
V-type ball valve for two-way sealing of single valve seat Download PDFInfo
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- CN203743477U CN203743477U CN201320688641.1U CN201320688641U CN203743477U CN 203743477 U CN203743477 U CN 203743477U CN 201320688641 U CN201320688641 U CN 201320688641U CN 203743477 U CN203743477 U CN 203743477U
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- valve
- valve seat
- hole
- valve body
- platen
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Abstract
The utility model discloses a V-type ball valve for two-way sealing of a single valve seat, and relates to the technical field of valves. The V-type ball valve comprises a valve body and a V-shaped ball body, wherein the V-shaped ball body is arranged in the cavity of the valve body; a horizontal through hole is formed in the center of the V-shaped ball body; an upper valve rod and a lower valve rod are arranged above and below the V-shaped ball body, and respectively mounted on the valve body; a pressure plate is mounted in a through hole in the right end of the valve body; a big O-shaped ring is arranged between the pressure plate and the through hole of the valve body; the valve seat is mounted in a stepped hole in the inner end of the pressure plate; a cone surface of the inner end of the valve seat is matched with a spherical surface of the V-shaped ball body; the outer surface of a stepped shaft shoulder at the right end of the valve seat is sleeved with a two-way piston; small holes are formed in the left end surface and the right end surface of the two-way piston; springs are arranged in the small holes; the springs on the two sides are respectively propped against the end surfaces of the valve seat and the pressure plate; O-shaped rings are respectively arranged in a groove in the inner ring and a groove in the excircle of the two-way piston, and respectively seal inner holes in the surface of the excircle of the valve seat and inner holes in the pressure plate. The V-type ball valve solves the problem that a single valve seat of a conventional ball valve cannot realize two-way sealing.
Description
Technical field
The utility model relates to valve technology field, specifically a kind of single valve seat two-way sealing V-type ball valve.
Background technique
Current is all single valve seat one-way sealing structure for the V-type ball valve regulating or block, realizing two way sealed must have two valve seats could realize two way sealed (respectively having a valve seat at the two ends of V-arrangement spheroid), single valve seat cannot be realized two way sealed, the double-valve-seat structure manufacture cost of two way sealed is high, solid particle medium is deposition between two valve seats easily, causes spheroid to be stuck.
Model utility content
The utility model provides single valve seat two-way sealing V-type ball valve, and the utility model has solved existing ball valve single valve seat cannot realize the problem of two way sealed.
For addressing the above problem, the utility model adopts following technological scheme: single valve seat two-way sealing V-type ball valve, comprise valve body 1, and valve body 1 center is cavity, valve body 1 left and right end has the through hole of turnover fluid; Also comprise V-arrangement spheroid 8;
V-arrangement spheroid 8 is arranged in the cavity of valve body 1, and there is horizontally disposed through hole at V-arrangement spheroid 8 centers; V-arrangement spheroid 8 upper and lowers are provided with upper valve rod 10 and lower valve rod 9, and upper valve rod 10 and lower valve rod 9 are installed on respectively on valve body 1;
In the right-hand member through hole of valve body 1, platen 2 is installed, between platen 2 and valve body 1 through hole, is provided with large O shape circle 3;
In the shoulder hole of platen 2 the inners, valve seat 7 is installed, the circular cone dignity of valve seat 7 the inners coordinates with the sphere of V-arrangement spheroid 8; The outside of the valve seat 7 right-hand member stepped shaft shaft shoulders is set with bidirectional piston 4, and bidirectional piston 4 left and right end faces have aperture, are provided with spring 5 in aperture, and the spring 5 of both sides peaks at respectively the end face of valve seat 7 and platen 2; In the groove of the interior ring of bidirectional piston 4 and cylindrical, be respectively arranged with the endoporus of O shape circle 6, O shape circle 6 difference seal valve seat 7 outer round surface and platen 2.
The V-type ball valve that the utility model provides a kind of single valve seat can realize two way sealed.This ball valve need only one valve seat (only having a valve seat in one end of spheroid) just can realize the two way sealed of valve, no matter medium be from the left side of valve or the right enter valve can solidsphere and the closure of valve seat, reach the effect that regulates or block medium.It is simple in structure, novel to the utlity model has, low cost of manufacture, good sealing effect.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the pressure fundamental diagram under state from right to left;
Fig. 3 is the from left to right fundamental diagram under state of pressure.
Symbol description in figure: valve body 1, platen 2, large O shape circle 3, bidirectional piston 4, spring 5, O shape circle 6, valve seat 7, V-arrangement spheroid 8, lower valve rod 9, upper valve rod 10.
Embodiment
By best embodiment, the utility model is described in detail below.
As shown in Figure 1, single valve seat two-way sealing V-type ball valve, comprises valve body 1, and valve body 1 center is cavity, and valve body 1 left and right end has the through hole of turnover fluid; Also comprise V-arrangement spheroid 8;
V-arrangement spheroid 8 is arranged in the cavity of valve body 1, and there is horizontally disposed through hole at V-arrangement spheroid 8 centers; V-arrangement spheroid 8 upper and lowers are provided with upper valve rod 10 and lower valve rod 9, and upper valve rod 10 and lower valve rod 9 are installed on respectively on valve body 1;
In the right-hand member through hole of valve body 1, platen 2 is installed, between platen 2 and valve body 1 through hole, is provided with large O shape circle 3;
In the shoulder hole of platen 2 the inners, valve seat 7 is installed, the circular cone dignity of valve seat 7 the inners coordinates with the sphere of V-arrangement spheroid 8; The outside of the valve seat 7 right-hand member stepped shaft shaft shoulders is set with bidirectional piston 4, and bidirectional piston 4 left and right end faces have aperture, are provided with spring 5 in aperture, and the spring 5 of both sides peaks at respectively the end face of valve seat 7 and platen 2; In the groove of the interior ring of bidirectional piston 4 and cylindrical, be respectively arranged with the endoporus of O shape circle 6, O shape circle 6 difference seal valve seat 7 outer round surface and platen 2.
As shown in Figure 2, V-arrangement spheroid 8 is fixing and can only 90-degree rotation by lower valve rod 9 and upper valve rod 10, on left and right directions, can not produce displacement.In the time that medium enters from spheroid right-hand member, pressure medium is from the gap between platen 2 and bidirectional piston 4, enter in the seal ring that O shape circle 6 and bidirectional piston 4 and valve seat 7 form, form and press chamber, now P1 is greater than P2 formation pressure differential deltap P, the outer diameter D Y of the O shape circle 6 at the cylindrical place of bidirectional piston 4 is greater than sealing surface central diameter DM, produces directed force F 1 in the annulus of DY to DM; Spring 5 is elastic element, and the pretightening force that elastic element produces is F2.Bidirectional piston 4, O shape circle 6, valve seat 7 move to V-arrangement spheroid 8 under directed force F 1 and F2 effect, embrace V-arrangement spheroid 8 and realize sealing.
As shown in Figure 3, V-arrangement spheroid 8 is fixing and can only 90-degree rotation by lower valve rod 9 and upper valve rod 10, on left and right directions, can not produce displacement, in the time that medium enters from V-arrangement spheroid left end, pressure medium is from the gap between valve seat 7 and bidirectional piston 4, enter in the seal ring that O shape circle 6 and bidirectional piston 4 and valve seat 7 form, form and press chamber, now P1 is greater than P2 formation pressure differential deltap P, the inner diameter D L of the O shape circle 6 of the inner circle of bidirectional piston 4 is less than sealing surface central diameter DM, produces directed force F 1 in the annulus of DL to DM; Spring 5 is elastic element, and the pretightening force that elastic element produces is F2.Valve seat 7 moves to V-arrangement spheroid 8 under directed force F 1 and F2 effect, embraces V-arrangement spheroid 8 and realizes sealing.
Finally it should be noted that: obviously, above-described embodiment is only for the utility model example is clearly described, and the not restriction to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all mode of executions.And the apparent variation of being amplified out thus or variation are still among protection domain of the present utility model.
Claims (1)
1. single valve seat two-way sealing V-type ball valve, comprises valve body (1), and valve body (1) center is cavity, and valve body (1) left and right end has the through hole of turnover fluid; It is characterized in that, also comprise V-arrangement spheroid (8); V-arrangement spheroid (8) is arranged in the cavity of valve body (1), and there is horizontally disposed through hole at V-arrangement spheroid (8) center; V-arrangement spheroid (8) upper and lower is provided with upper valve rod (10) and lower valve rod (9), and upper valve rod (10) and lower valve rod (9) are installed on respectively on valve body (1); Platen (2) is installed in the right-hand member through hole of valve body (1), between platen (2) and valve body (1) through hole, is provided with large O shape circle (3); In the shoulder hole of platen (2) the inner, valve seat (7) is installed, the inner circular cone dignity of valve seat (7) coordinates with the sphere of V-arrangement spheroid (8); The outside of valve seat (7) the right-hand member stepped shaft shaft shoulder is set with bidirectional piston (4), bidirectional piston (4) left and right end face has aperture, in aperture, be provided with spring (5), the spring (5) of both sides peaks at respectively the end face of valve seat (7) and platen (2); In bidirectional piston (4), in the groove of ring and cylindrical, be respectively arranged with O shape circle (6), the endoporus of O shape circle (6) difference seal valve seat (7) outer round surface and platen (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320688641.1U CN203743477U (en) | 2013-11-05 | 2013-11-05 | V-type ball valve for two-way sealing of single valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320688641.1U CN203743477U (en) | 2013-11-05 | 2013-11-05 | V-type ball valve for two-way sealing of single valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743477U true CN203743477U (en) | 2014-07-30 |
Family
ID=51343278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320688641.1U Expired - Fee Related CN203743477U (en) | 2013-11-05 | 2013-11-05 | V-type ball valve for two-way sealing of single valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743477U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151576A (en) * | 2016-08-26 | 2016-11-23 | 武汉大禹阀门股份有限公司 | A kind of self adaptation two-way floating valve seat construction |
-
2013
- 2013-11-05 CN CN201320688641.1U patent/CN203743477U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151576A (en) * | 2016-08-26 | 2016-11-23 | 武汉大禹阀门股份有限公司 | A kind of self adaptation two-way floating valve seat construction |
| CN106151576B (en) * | 2016-08-26 | 2019-02-19 | 武汉大禹阀门股份有限公司 | A kind of adaptive two-way floating valve seat construction |
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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: 20140730 Termination date: 20191105 |