CN2324342Y - Metal hard sealing butterfly valve - Google Patents
Metal hard sealing butterfly valve Download PDFInfo
- Publication number
- CN2324342Y CN2324342Y CN 98230099 CN98230099U CN2324342Y CN 2324342 Y CN2324342 Y CN 2324342Y CN 98230099 CN98230099 CN 98230099 CN 98230099 U CN98230099 U CN 98230099U CN 2324342 Y CN2324342 Y CN 2324342Y
- Authority
- CN
- China
- Prior art keywords
- valve
- utility
- model
- butterfly
- seal
- 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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- Lift Valve (AREA)
Abstract
The utility model relates to a metallic hard seal butterfly valve. The outer circumference of an annular sealing ring clamped between a butterfly plate and a pressing plate is designed to be in the shape of a half circular arc and extends to a tilting plane, and then, the outer circumference is matched with and contacts a conical bore of the inside diameter of a valve bore so as to realize seal. The utility model has the advantages of simple structure, easy fabrication and production and reliable seal effect; furthermore, the seal effect can follow the increased pressure of media to be much more reliable. The utility model can be used as a stop valve in various fluid body pipelines and networks.
Description
The utility model is a kind of metal hard-sealing butterfly valve.
The two core shift hard seal butterfly valves of metal good heat-resistingly, anti-freeze because of it has, the acid-and base-resisting performance, advantages such as long service life, thereby, be widely used in the various fluid circuit networks as stop valve usefulness, but existing metal hard-sealing butterfly valve, because of the problem that exists on its structural design, its seal ring is the some contact with contacting of valve opening on the longitudinal cross-section, be a circle on lateral cross section, therefore, sealing effect is not good enough, easily produce and leak the field of having limited its use.
The purpose of this utility model is to overcome the deficiency of prior art and provides a kind of simple and reasonable, and manufacturing is easy, the reliable metal hard-sealing butterfly valve of sealing effect.
The utility model is to adopt following proposal to realize: the O-ring seal excircle that will be clipped between butterfly plate and the pressing plate is designed to a semicircular arc and extends a clinoplain, cooperates to contact with the conical bore of valve opening internal diameter and realizes sealing.
Concrete structure of the present utility model describes in detail below in conjunction with accompanying drawing:
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is a M portion enlarged view in the accompanying drawing 1.
See accompanying drawing 1,2, the utility model is made up of valve rod 1, valve body 2, valve seat 3, metal o-ring 4, butterfly plate 5, pressing plate 6, the structure of described valve rod 1, valve body 2, valve seat 3, butterfly plate 5, pressing plate 6 and installation form are all just the same with existing butterfly valve, and the excircle that its improvement is to be clipped on the ring shaped metallic seal ring 4 between pressing plate 6 and the butterfly utmost point 5 is a semicircular arc and extends a clinoplain 7 and match and contact with the conicity of valve opening 8 on the valve seat 3.
Working principle of the present utility model is summarized as follows: because of metal o-ring 4 excircles are a semicircular arc and extend a clinoplain 7, and the conicity of valve opening 8 matches in the inclination on this plane 7 and the valve seat 3, therefore, when throttle down, contacting on the longitudinal cross-section between metal o-ring and the valve opening 8 is the line contact, on lateral cross section, still be the line contact, thereby constitute the sealing surface of a face contact, thereby, reliable sealing effect is provided, flowing medium is along the inner arc surface of N to extrusion metal seal ring 4 circular arc rings in addition, and it is tightr that metal o-ring is contacted with the surface of contact of valve opening, thereby reaches better sealing effect.
In sum, the utility model is simple in structure, and manufacturing is easy, and sealing effect is reliable, and sealing effect increases with pressure medium and become more reliable, is suitable for using making stop valve use in various fluid circuit networks.
Claims (1)
- A kind of metal hard-sealing butterfly valve, comprise valve rod 1, valve body 2, valve seat 3, metal o-ring 4, butterfly plate 5, pressing plate 6, the excircle that it is characterized in that being clipped on the ring shaped metallic seal ring 4 between pressing plate 6 and the butterfly plate 5 is a semicircular arc and extends a clinoplain 7 and match and contact with the conicity of valve opening 8 on the valve seat 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98230099 CN2324342Y (en) | 1998-01-23 | 1998-01-23 | Metal hard sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98230099 CN2324342Y (en) | 1998-01-23 | 1998-01-23 | Metal hard sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2324342Y true CN2324342Y (en) | 1999-06-16 |
Family
ID=33979844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98230099 Expired - Fee Related CN2324342Y (en) | 1998-01-23 | 1998-01-23 | Metal hard sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2324342Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886703A (en) * | 2010-08-18 | 2010-11-17 | 上海开维喜阀门集团有限公司 | Combined circular groove for butterfly valve seat of molecular sieve |
| CN104989832A (en) * | 2015-07-13 | 2015-10-21 | 方正阀门集团(温州)机械制造有限公司 | Butterfly valve with both-way sealing function |
-
1998
- 1998-01-23 CN CN 98230099 patent/CN2324342Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886703A (en) * | 2010-08-18 | 2010-11-17 | 上海开维喜阀门集团有限公司 | Combined circular groove for butterfly valve seat of molecular sieve |
| CN101886703B (en) * | 2010-08-18 | 2012-08-29 | 上海开维喜阀门集团有限公司 | Combined circular groove for butterfly valve seat of molecular sieve |
| CN104989832A (en) * | 2015-07-13 | 2015-10-21 | 方正阀门集团(温州)机械制造有限公司 | Butterfly valve with both-way sealing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |