CN102230541B - Full-sealing zero leakage butterfly valve - Google Patents
Full-sealing zero leakage butterfly valve Download PDFInfo
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- CN102230541B CN102230541B CN 201110198793 CN201110198793A CN102230541B CN 102230541 B CN102230541 B CN 102230541B CN 201110198793 CN201110198793 CN 201110198793 CN 201110198793 A CN201110198793 A CN 201110198793A CN 102230541 B CN102230541 B CN 102230541B
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- valve
- drive link
- arc drive
- rod
- seal
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Abstract
The invention relates to a butterfly valve, in particular to a full-sealing zero leakage butterfly valve. A valve rod is driven by an arc-shaped driving connecting rod; a whole valve cover has a box shape and encloses the valve rod and the arc-shaped driving connecting rod therein; and a metal bellows is arranged between the end part of the arc-shaped driving connecting rod and the valve cover. Therefore, good sealing performance is achieved, and the advantage that the traditional butterfly valve can be opened and closed by rotating 90 degrees only is kept.
Description
Technical field
The present invention relates to a kind of dish valve, particularly full-seal zero-leakage dish 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 dish 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 too matching gap, is Leakage prevention, have to be clipped in the place, slit with sealing gasket and go to block up.When the transporting medium temperature raises, pressure increases so that the working environment of valve is very harsh, 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 open-shut device by lifting valve pocket inside, such as stop valve, gate valve etc., people can be by 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, be provided with corrugated tube shape elastic telescopic spare, described 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 for the dish valve is this by 90 degree rotation dish plates, because bellows can't be done the radial rotary distortion, said structure can't be suitable for, need to become straight line motion with rotation, straight line motion becomes the mechanical shifting mechanism that rotatablely moves again, so that complicated structure, and volume increases.
Summary of the invention
The object of the invention is to provide for overcoming the deficiencies in the prior art a kind of dish valve of seamless full-seal zero-leakage.
In order to achieve the above object, technical solution provided by the invention is: a kind of full-seal zero-leakage dish valve, include valve gap, valve body, the dish plate, valve seat and valve rod, it is characterized in that: described full-seal zero-leakage dish valve is provided with at least the arc drive link greater than 90 degree arc length, described arc drive link one end is fixedly connected with valve rod by joint radially, described valve gap integral body is the case shape valve rod and arc drive link is wrapped in wherein, described 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 described arc drive link on the valve gap, the described space radial sidewalls relative with the described arc drive link the other end is provided with tie rod holes, this end end of described arc drive link passes from tie rod holes, the described part arc drive link that passes from tie rod holes is arranged with metal bellows, described metal bellows one end and connecting rod 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 invention has the beneficial effects as follows: the present invention is by 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 described arc drive link and valve gap, be provided with described metal bellows, reach good sealing, also kept simultaneously traditional dish valve only to turn 90 degrees the advantage that just can open and close.
The invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Accompanying drawing 1 is the specific embodiment of the invention 1 structure sectional view;
Accompanying drawing 2 is accompanying drawing 1 A-A structure sectional view.
Embodiment
As shown in Figure 1, full-seal zero-leakage dish valve comprises valve gap 1, valve body 2, dish plate 3, valve seat 4 and valve rod 5, dish plate 3 is arranged in the valve pocket of valve body 2, valve seat 4 is arranged in the valve pocket equally, valve rod 5 holes that valve rod 5 lower ends are passed on the valve body 2 are connected with dish plate 3 to valve pocket, described full-seal zero-leakage dish valve is provided with at least the arc drive link 6 greater than 90 degree arc length, described arc drive link 6 one ends are fixedly connected with valve rod 5 by joint 7 radially, described valve gap 1 integral body is the case shape valve rod 5 and arc drive link 6 is wrapped in wherein, described valve gap 1 bottom and valve body 2 are tightly connected, the position corresponding with arc drive link 6 is provided with its rotatable spaces that are not less than 90 degree of confession that match with described arc drive link 6 on the valve gap 1, described space relative with described arc drive link 6 the other ends radial sidewalls be provided with tie rod holes 8, this end end of described 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 and valve rod 5 center superpositions, tie rod holes 8 can be smaller like this.In this specific embodiment, described arc drive link 6 is G shape, as shown in Figure 2, the G shape center of arc drive link 6 (namely radially the end of vertical part) is fixedly connected with valve rod 5 upper ends, described arc drive link 6 can be integrated setting with valve rod 5, described 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, inside is provided with the fan-shaped cavity volume 9 that the arc drive link 6 with G shape matches, 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 described part arc drive link 6 that passes from tie rod holes 8 is arranged with metal bellows 10, and described 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.For easy-to-operat, be 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 dish valve, include valve gap, valve body, the dish plate, valve seat and valve rod, the dish plate is arranged in the valve pocket of valve body, valve seat is arranged in the valve pocket, the valve rod hole that the valve rod lower end is passed on the valve body is connected with the dish plate to valve pocket, it is characterized in that: described full-seal zero-leakage dish valve is provided with at least the arc drive link greater than 90 degree arc length, described arc drive link one end is fixedly connected with valve rod by joint radially, described valve gap integral body is the case shape valve rod and arc drive link is wrapped in wherein, described 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 described arc drive link on the valve gap, the described space radial sidewalls relative with the described arc drive link the other end is provided with tie rod holes, this end end of described arc drive link passes from tie rod holes, the described part arc drive link that passes from tie rod holes is arranged with metal bellows, described metal bellows one end and connecting rod 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 dish valve according to claim 1, it is characterized in that: described arc drive link is G shape, the G shape center of arc drive link is fixedly connected with the valve rod upper end, described 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 |
|---|---|---|---|
| CN 201110198793 CN102230541B (en) | 2011-07-15 | 2011-07-15 | Full-sealing zero leakage butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110198793 CN102230541B (en) | 2011-07-15 | 2011-07-15 | Full-sealing zero leakage butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102230541A CN102230541A (en) | 2011-11-02 |
| CN102230541B true CN102230541B (en) | 2013-03-13 |
Family
ID=44843138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110198793 Active CN102230541B (en) | 2011-07-15 | 2011-07-15 | Full-sealing zero leakage butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102230541B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4452426A (en) * | 1982-03-11 | 1984-06-05 | Kerotest Manufacturing Corp. | Bent bellows sealed rotary valve |
| CA2137470A1 (en) * | 1992-06-10 | 1993-12-23 | John E. Cook | Internal combustion engine exhaust control valve |
| CN102094984A (en) * | 2010-12-13 | 2011-06-15 | 芜湖博耐尔汽车电气系统有限公司 | Automobile air conditioning heater water valve |
| CN202140580U (en) * | 2011-07-15 | 2012-02-08 | 浙江信泰阀门有限公司 | Omniseal leakage-free butterfly valve |
-
2011
- 2011-07-15 CN CN 201110198793 patent/CN102230541B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4452426A (en) * | 1982-03-11 | 1984-06-05 | Kerotest Manufacturing Corp. | Bent bellows sealed rotary valve |
| CA2137470A1 (en) * | 1992-06-10 | 1993-12-23 | John E. Cook | Internal combustion engine exhaust control valve |
| CN102094984A (en) * | 2010-12-13 | 2011-06-15 | 芜湖博耐尔汽车电气系统有限公司 | Automobile air conditioning heater water valve |
| CN202140580U (en) * | 2011-07-15 | 2012-02-08 | 浙江信泰阀门有限公司 | Omniseal leakage-free butterfly valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102230541A (en) | 2011-11-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325204 section of mountain, Central Industrial Zone, Longwan District, Wenzhou, Zhejiang Patentee after: Xintai Valve Co., Ltd. Address before: 325204 section of mountain, Central Industrial Zone, Longwan District, Wenzhou, Zhejiang Patentee before: Zhejiang Xintai Valve Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 325024 the Central Industrial District of Longwan District, Wenzhou, Zhejiang Patentee after: Xintai Valve Group Co.,Ltd. Address before: 325204 section of mountain, Central Industrial Zone, Longwan District, Wenzhou, Zhejiang Patentee before: XINTAI VALVE Co.,Ltd. |
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| CP03 | Change of name, title or address |