CN203500502U - Butterfly valve with valve plate lined with rubber - Google Patents
Butterfly valve with valve plate lined with rubber Download PDFInfo
- Publication number
- CN203500502U CN203500502U CN201320515675.0U CN201320515675U CN203500502U CN 203500502 U CN203500502 U CN 203500502U CN 201320515675 U CN201320515675 U CN 201320515675U CN 203500502 U CN203500502 U CN 203500502U
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- CN
- China
- Prior art keywords
- valve
- plate
- butterfly
- dish plate
- valve seat
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- 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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Abstract
The utility model relates to a butterfly valve with a valve plate lined with rubber. A valve stem is of a regular hexagonal prism structure; the valve plate is coaxially embedded in a regular-hexagonal valve stem mounting hole formed in the middle of a butterfly plate; the butterfly plate is of a bifacial symmetrical structure and has a smooth and flat surface; the surface of the butterfly plate is uniformly coated with an elastic silica gel protective layer; the elastic silica gel protective layer integrally coats the external surface of the butterfly plate; the outer edge of the butterfly plate is polished to form a micro semi-spherical surface; the outer wall of the middle of a valve base is coaxially provided with a middle convex ring. The butterfly valve disclosed by the utility model is high in structural strength, good in sealing property and good in valve plate corrosion-resistant performance; the matching accuracy of the polished valve plate and the valve base is high, furthermore the butterfly valve is easy to control, small in torque resistance, simple in structure, simple in installation of valve parts and long in service life.
Description
Technical field
The utility model belongs to valve field, especially a kind of butterfly valve of valve plate line with rubber.
Background technique
Use at engineering pipeline transportation art valve is very extensive, the basic structure of valve is co-axial seal setting-in valve seat in valve body now, valve rod is radially installed on valve body, on valve rod in valve body, be fixedly mounted with dish plate, dish plate coordinates with valve base sealing, thereby dish plate rotation or movement under the driving of valve rod open and close the runner in valve seat.Valve body outer radial is shaped with a plurality of flange plates for being connected with pipeline, is shaped with bolt mounting holes on flange plate.The sealing of valve is to weigh the major criterion of sealability, and the critical pieces such as the valve body of present butterfly valve, dish plate, valve rod are all to adopt cast iron manufacture, uses for a long time medium corrosion cast iron easily to cause valve seal variation.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, and a kind of butterfly valve of valve plate line with rubber of reasonable in design, simple in structure, easy to operate, long service life is provided.
The utility model solves its technical problem and takes following technological scheme to realize:
A butterfly valve for valve plate line with rubber, comprises valve body, valve rod, valve seat, dish plate and handle, at valve body middle part, one valve rod is radially installed, and this valve rod upper end is stretched out valve body and is coaxially installed with one handle; In valve body, be axially installed with valve seat, dish plate is radially installed on the valve rod in valve seat, valve outer wall spaced radial is shaped with a plurality of mounting plates, on the plurality of mounting plate, be all shaped with standard-sized mounting hole, it is characterized in that: described valve rod is positive six prism structures, valve plate is coaxially inlaid in the made regular hexagon valve rod mounting hole in dish plate middle part, and dish plate is double-sided symmetrical structure, and dish plate smooth surface is smooth; The flexible silicone protective layer of described dish plate coated with uniform, the complete coated dish plate outer surface of this elastic silica gel protective layer, dish plate outer rim is through the micro-hemisphere face of polishing treatment, and valve seat middle part outer wall is coaxially shaped with a middle part bulge loop.
And, in the valve seat of described middle part bulge loop corresponding position, being shaped with coaxial limited ring groove, in this limited ring groove, co-axial seal coordinates setting-in annular brace circle.
And the edge bulge loop at described two ends, middle part bulge loop, annular brace circle and valve seat one are made.
Advantage of the present utility model and good effect are:
1, the support performance of the rubber gasket of this butterfly valve is good, and firmly stable, simple and compact for structure, adjusting function is good, guarantee to support moment not yielding again, machining accuracy is high, and valve seat is not yielding, the deformation effects such as tolerance is little, the expansion upheaval of valve seat are little, the long service life of valve seat.
2, the dish plate boundary dimension of this butterfly valve is accurate, and good airproof performance after throttling, between dish plate and valve seat without interference phenomenon, thereby guarantee that operational torque is little, valve long service life.
3, the utility model structural strength is high, good seal performance, and valve plate Corrosion Protection is good, and valve plate is high through polishing treatment and valve seat quality of fit, and this valve easily controls, and moment of torsion resistance is little, and simple in structure, and the installation of valve part is simple, long service life.
Accompanying drawing explanation
Fig. 1 cuts open structural front view in of the present utility model;
Fig. 2 be Fig. 1 in cut open right elevation;
Fig. 3 is that the A-A of Fig. 2 is to cross section enlarged view.
Embodiment
Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A butterfly valve for valve plate line with rubber, comprises valve body 3, valve rod 2, valve seat 4, dish plate 5 and handle 1, at valve body middle part, one valve rod is radially installed, and this valve rod upper end is stretched out valve body and is coaxially installed with one handle; In valve body, be axially installed with valve seat, dish plate is radially installed on the valve rod in valve seat.
Valve outer wall spaced radial is shaped with a plurality of mounting plates 9, is all shaped with standard-sized mounting hole on the plurality of mounting plate, for being connected with piping flange.
Innovative point of the present utility model is:
Described valve rod is positive six prism structures, and valve plate is coaxially inlaid in the made regular hexagon valve rod mounting hole in dish plate middle part, and dish plate is double-sided symmetrical structure, and dish plate smooth surface is smooth, the rotation under the twisting force of valve rod of dish plate, thereby the keying of control valve.
The flexible silicone protective layer 6 of described dish plate coated with uniform, the complete coated dish plate outer surface of this elastic silica gel protective layer, effectively isolates dish plate and medium contact, avoids dielectric damages medium.
Dish plate outer rim, through the micro-hemisphere face of polishing treatment, reduces operational torque, and while guaranteeing sealing, dish plate and valve seat is sealed and matched.
Described valve seat is the one-body molded cylinder barrel shaped structure of making of rubber, and this valve seat middle part is radially coaxially shaped with the orthohexagonal valve rod mounting hole coordinating with valve rod; The axial two ends outer rim of valve seat is all shaped with edge bulge loop 8, and this edge bulge loop is inlaid in the made valve seat mounting groove in the axial two ends of valve body.
Valve seat middle part outer wall is coaxially shaped with a middle part bulge loop 7, as shown in Figure 3, this bulge loop cross section, middle part is middle part to dish plate direction projection, and be shaped with closure gasket groove between this projection and valve seat, the axial two ends of sealing annular groove are all shaped with annular brace circle 10, between the annular brace circle at these two ends and valve body, are sealed and matched.
In order putting at firm sutaining valve seat, and to retain elastic space, in the valve seat of described middle part bulge loop corresponding position, to be shaped with coaxial limited ring groove, in this limited ring groove, co-axial seal coordinates setting-in annular brace circle.This valve seat construction is simple, effectively prevents that valve seat from moving axially, good stability, and also middle part is shaped with that to strengthen the valve seat intensity of bulge loop large, avoids the distortion of valve seat protuberance.
The edge bulge loop at described two ends, middle part bulge loop, annular brace circle and valve seat one are made.
Although disclose for the purpose of illustration embodiment of the present utility model and accompanying drawing, but it will be appreciated by those skilled in the art that: within not departing from the spirit and scope of the utility model and claims, various replacements, variation and modification are all possible, therefore, scope of the present utility model is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (3)
1. a butterfly valve for valve plate line with rubber, comprises valve body, valve rod, valve seat, dish plate and handle, at valve body middle part, one valve rod is radially installed, and this valve rod upper end is stretched out valve body and is coaxially installed with one handle; In valve body, be axially installed with valve seat, dish plate is radially installed on the valve rod in valve seat, valve outer wall spaced radial is shaped with a plurality of mounting plates, on the plurality of mounting plate, be all shaped with standard-sized mounting hole, it is characterized in that: described valve rod is positive six prism structures, valve plate is coaxially inlaid in the made regular hexagon valve rod mounting hole in dish plate middle part, and dish plate is double-sided symmetrical structure, and dish plate smooth surface is smooth; The flexible elastic silica gel protective layer of described dish plate coated with uniform, the complete coated dish plate outer surface of this elastic silica gel protective layer, dish plate outer rim is through the micro-hemisphere face of polishing treatment, and valve seat middle part outer wall is coaxially shaped with a middle part bulge loop.
2. the butterfly valve of valve plate line with rubber according to claim 1, is characterized in that: in the valve seat of described middle part bulge loop corresponding position, be shaped with coaxial limited ring groove, in this limited ring groove, co-axial seal coordinates setting-in annular brace circle.
3. the butterfly valve of valve plate line with rubber according to claim 1, is characterized in that: the edge bulge loop at described two ends, middle part bulge loop, annular brace circle and valve seat one are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515675.0U CN203500502U (en) | 2013-08-22 | 2013-08-22 | Butterfly valve with valve plate lined with rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515675.0U CN203500502U (en) | 2013-08-22 | 2013-08-22 | Butterfly valve with valve plate lined with rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500502U true CN203500502U (en) | 2014-03-26 |
Family
ID=50331482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320515675.0U Expired - Fee Related CN203500502U (en) | 2013-08-22 | 2013-08-22 | Butterfly valve with valve plate lined with rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255901A (en) * | 2020-01-15 | 2020-06-09 | 王中雨 | High-efficiency electromechanical valve |
-
2013
- 2013-08-22 CN CN201320515675.0U patent/CN203500502U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255901A (en) * | 2020-01-15 | 2020-06-09 | 王中雨 | High-efficiency electromechanical valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20140822 |
|
| EXPY | Termination of patent right or utility model |