CN202140580U - Omniseal leakage-free butterfly valve - Google Patents
Omniseal leakage-free butterfly valve Download PDFInfo
- Publication number
- CN202140580U CN202140580U CN201120251356U CN201120251356U CN202140580U CN 202140580 U CN202140580 U CN 202140580U CN 201120251356 U CN201120251356 U CN 201120251356U CN 201120251356 U CN201120251356 U CN 201120251356U CN 202140580 U CN202140580 U CN 202140580U
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- China
- Prior art keywords
- valve
- drive link
- arc drive
- seal
- tie rod
- Prior art date
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- Withdrawn - After Issue
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Abstract
The utility model relates to a butterfly valve, in particular to an omniseal leakage-free butterfly valve. In the omniseal leakage-free butterfly valve, an arc drive connecting rod drives a valve rod, the valve rod and the arc drive connecting rod are wrapped in a box-shaped valve cover, and a metal corrugated pipe is arranged between the end part of the arc drive connecting rod and the valve cover, so that an excellent sealing performance is realized, and the advantage that the traditional butterfly valve can be opened and closed by only rotating by 90 degrees can be realized.
Description
Technical field
The utility model relates to a kind of butterfly valve, particularly the full-seal zero-leakage butterfly valve.
Background technique
Closely for a certain period, because the butterfly valve volume is little, handle only turn 90 degrees and just can realize opening and closing, opening and closing fast, the using scope of butterfly valve is widened, and kind series increases, and output strengthens.Present butterfly valve valve gap is connected with bolt, nut with valve body and forms sealing.Yet this Seal cage has two leak sources, and one is the joint of valve gap and valve body, and another place is that valve rod rotates at the stuffing box place and produced matching gap too, is anti-heads, have to be clipped in the place, slit with sealing gasket and go to block up.Very harsh when the working environment that the transporting medium temperature raises, the pressure increase makes valve, in order to guarantee being perfectly safe of transporting hazmat, the most basic way is cancelled this two leak sources exactly.Reach the opening and closing valve for those through the inner open-shut device of up-down valve pocket; Like stop valve, gate valve etc.; People can be through being provided with the hanger of open-shut device in the valve rod lower end, the hanger Spielpassung is arranged in the valve pocket, between the valve port of valve body and hanger, is provided with corrugated tube shape elastic telescopic spare; Said elastic telescopic spare two ends separate flashboard and upper cover with valve port and hanger fixed seal connection respectively, thereby reach the purpose of full-seal zero-leakage.But reach the opening and closing valve through 90 degree rotation butterfly plates for butterfly valve is this; Because bellows can't be done radially rotational deformation; Said structure can't be suitable for, and needs to become straight line motion with rotation, and straight line motion becomes the mechanical shifting mechanism that rotatablely moves again; Make the structure more complicated, and volume increases.
Summary of the invention
The purpose of the utility model is to provide for the deficiency that overcomes existing technology a kind of butterfly valve of seamless full-seal zero-leakage.
In order to achieve the above object; The technical solution that the utility model provides is: a kind of full-seal zero-leakage butterfly valve; Include valve gap, valve body, butterfly plate, valve seat and valve rod; It is characterized in that: said full-seal zero-leakage butterfly valve is provided with at least the arc drive link greater than 90 degree arc length; Said arc drive link one end is fixedly connected with valve rod through joint radially, and said valve gap integral body is the case shape valve rod and arc drive link are wrapped in wherein, and said bonnet lower is connected with valve seal; The position corresponding with the arc drive link is provided with its rotatable space that is not less than 90 degree of confession that matches with said arc drive link on the valve gap; Said space relative with the said arc drive link the other end radial sidewalls be provided with tie rod holes, this end end of said arc drive link passes from tie rod holes, the said part arc drive link that from tie rod holes, passes is arranged with metal bellows; Said metal bellows one end and tie rod holes are tightly connected, and the other end is enclosed in tie rod holes wherein and is connected with valve bonnet seal.
Compared with prior art; The beneficial effect of the utility model is: the utility model is through arc drive link actuate valve stem; Valve gap integral body is the case shape valve rod and arc drive link is wrapped in wherein; And between the end of said arc drive link and valve gap, be provided with said metal bellows, and reached good sealing, also keep traditional butterfly valve only to turn 90 degrees the advantage that just can open and close simultaneously.
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
Description of drawings
Accompanying drawing 1 is the utility model specific embodiment 1 structure sectional view;
Accompanying drawing 2 is accompanying drawing 1 an A-A structure sectional view.
Embodiment
As shown in Figure 1; The full-seal zero-leakage butterfly valve comprises valve gap 1, valve body 2, butterfly plate 3, valve seat 4 and valve rod 5; Butterfly plate 3 is arranged in the valve pocket of valve body 2, and valve seat 4 is arranged in the valve pocket equally, and valve rod 5 lower ends are passed in valve rod 5 holes to the valve pocket on the valve body 2 and are connected with butterfly plate 3; Said full-seal zero-leakage butterfly valve is provided with at least the arc drive link 6 greater than 90 degree arc length; Said arc drive link 6 one ends are fixedly connected with valve rod 5 through joint 7 radially, and said valve gap 1 integral body is the case shape valve rod 5 and arc drive link 6 are wrapped in wherein, and said valve gap 1 bottom and valve body 2 are tightly connected; Be provided with its rotatable space that is not less than 90 degree of confession that matches with said arc drive link 6 with arc drive link 6 corresponding positions on the valve gap 1; Said space relative with said arc drive link 6 the other ends radial sidewalls be provided with tie rod holes 8, this end end of said arc drive link 6 passes from tie rod holes 8, plane, arc drive link 6 place is preferably vertical with valve rod 5; The center of circle of arc drive link 6 overlaps with valve rod 5 centers, and tie rod holes 8 can be smaller like this.In this specific embodiment, said arc drive link 6 is G shape, and is as shown in Figure 2; The G shape center of arc drive link 6 (promptly radially the end of vertical part) is fixedly connected with valve rod 5 upper ends, and said arc drive link 6 can be for being wholely set with valve rod 5, and said valve gap 1 bottom is the tubular that endoporus and valve rod 5 gaps match; And be provided with flange and valve body 2 is tightly connected; Top is flat fan, and inside is provided with the fan-shaped cavity volume 9 that the arc drive link 6 with G shape matches, and the radial sidewalls of fan-shaped cavity volume 9 is provided with tie rod holes 8; The end of arc drive link 6 passes from tie rod holes 8; The said part arc drive link 6 that from tie rod holes 8, passes is arranged with metal bellows 10, and said metal bellows 10 1 ends and tie rod holes 8 are tightly connected, and the other end is enclosed in tie rod holes 8 wherein and is tightly connected with valve gap 1.Operation for ease is provided with one section column crank 11 parallel with valve rod 5 in arc drive link 6 ends of exposing.
Claims (2)
1. full-seal zero-leakage butterfly valve; Include valve gap, valve body, butterfly plate, valve seat and valve rod; Butterfly plate is arranged in the valve pocket of valve body, and valve seat is arranged in the valve pocket, and the valve rod lower end is passed in valve rod hole to the valve pocket on the valve body and is connected with butterfly plate; It is characterized in that: said full-seal zero-leakage butterfly valve is provided with at least the arc drive link greater than 90 degree arc length; Said arc drive link one end is fixedly connected with valve rod through joint radially, and said valve gap integral body is the case shape valve rod and arc drive link are wrapped in wherein, and said bonnet lower is connected with valve seal; The position corresponding with the arc drive link is provided with its rotatable space that is not less than 90 degree of confession that matches with said arc drive link on the valve gap; Said space relative with the said arc drive link the other end radial sidewalls be provided with tie rod holes, this end end of said arc drive link passes from tie rod holes, the said part arc drive link that from tie rod holes, passes is arranged with metal bellows; Said metal bellows one end and tie rod holes are tightly connected, and the other end is enclosed in tie rod holes wherein and is connected with valve bonnet seal.
2. full-seal zero-leakage butterfly valve according to claim 1; It is characterized in that: said arc drive link is a G shape, and the G shape center of arc drive link is fixedly connected with the valve rod upper end, and said bonnet lower is the tubular that endoporus and valve lever clearance match; And be provided with flange and be connected with valve seal; Top is flat fan, and inside is provided with the fan-shaped cavity volume that the arc drive link with G shape matches, and the radial sidewalls of fan-shaped cavity volume is provided with tie rod holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120251356U CN202140580U (en) | 2011-07-15 | 2011-07-15 | Omniseal leakage-free butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120251356U CN202140580U (en) | 2011-07-15 | 2011-07-15 | Omniseal leakage-free butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140580U true CN202140580U (en) | 2012-02-08 |
Family
ID=45551638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120251356U Withdrawn - After Issue CN202140580U (en) | 2011-07-15 | 2011-07-15 | Omniseal leakage-free butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140580U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230541A (en) * | 2011-07-15 | 2011-11-02 | 浙江信泰阀门有限公司 | Full-sealing zero leakage butterfly valve |
| CN107289140A (en) * | 2017-07-10 | 2017-10-24 | 上海累富阀门科技有限公司 | 90 degree of revolution Bellows valves |
-
2011
- 2011-07-15 CN CN201120251356U patent/CN202140580U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230541A (en) * | 2011-07-15 | 2011-11-02 | 浙江信泰阀门有限公司 | Full-sealing zero leakage butterfly valve |
| CN102230541B (en) * | 2011-07-15 | 2013-03-13 | 浙江信泰阀门有限公司 | Full-sealing zero leakage butterfly valve |
| CN107289140A (en) * | 2017-07-10 | 2017-10-24 | 上海累富阀门科技有限公司 | 90 degree of revolution Bellows valves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120208 Effective date of abandoning: 20130313 |
|
| RGAV | Abandon patent right to avoid regrant |