CN203500508U - Butterfly valve of pin-free structure - Google Patents
Butterfly valve of pin-free structure Download PDFInfo
- Publication number
- CN203500508U CN203500508U CN201320516085.XU CN201320516085U CN203500508U CN 203500508 U CN203500508 U CN 203500508U CN 201320516085 U CN201320516085 U CN 201320516085U CN 203500508 U CN203500508 U CN 203500508U
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- China
- Prior art keywords
- valve
- valve rod
- plate
- valve seat
- shaped
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- Expired - Fee Related
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Abstract
The utility model relates to a butterfly valve of a pin-free structure. The butterfly valve of the pin-free structure comprises a valve body, a valve rod, a dished plate and a handle. The valve rod is arranged in the radial direction of the middle part of the valve body; the upper end of the valve rod extends out of the valve body, and is coaxially provided with the handle; a valve seat is axially arranged in the valve body; the dished plate is arranged in the radial direction of the valve rod in the valve seat; the valve rod is of a regular hexagonal prism structure; a valve plate is coaxially embedded into an orthohexagonal valve rod mounting hole formed in the middle part of the dished plate, and the dished plate is of a double-faced symmetrical structure. The butterfly valve of the pin-free structure provided by the utility model is high in structural strength, good in sealing performance, easy to control, low in torque resistance, and simple in structure. Valve components are simple to install, and long in service life.
Description
Technical field
The utility model belongs to valve field, especially a kind of butterfly valve without pin structure.
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.At present, dish plate and valve rod are that screw is fixed, but the end of screw can be exposed outside valve plate, and need on valve plate, make mounting hole, and destroying the protective coating on valve plate surface, screw position easily damages, and in long-term use, screw generation shake is de-, is difficult to maintenance, causes valve bulk life time shorter.
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 without pin structure 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:
Without a butterfly valve for pin structure, comprise valve body, valve rod, dish plate and handle, at valve body middle part, one valve rod is radially installed, this valve rod upper end is stretched out valve body and is coaxially installed with handle; In valve body, be axially installed with valve seat, dish plate is radially installed on the valve rod in valve seat, 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 valve outer wall spaced radial is shaped with a plurality of mounting plates 8, on the plurality of mounting plate, be all shaped with a mounting hole, for being connected with piping flange.
And described valve seat is the one-body molded cylinder barrel shaped structure of making of rubber, this valve seat middle part is radially coaxially shaped with orthohexagonal valve rod mounting hole; The axial two ends outer rim of valve seat is all shaped with edge bulge loop, 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, and this middle part bulge loop is inlaid in the limited ring groove that in valve body, correspondence is 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, guarantees to support moment not yielding again.
The deformation effects such as 2, the machining accuracy of this butterfly valve is high, and valve seat is not yielding, and tolerance is little, the expansion upheaval of valve seat are little, the long service life of valve seat.
3, the utility model structural strength is high, good seal performance, and also 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 sectional view;
Fig. 4 be valve seat of the present utility model in cut open schematic diagram.
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.
Without a butterfly valve for pin structure, comprise valve body 3, valve rod 2, dish plate 5 and handle 1, if accompanying drawing 1 is to as shown in accompanying drawing 2, at valve body middle part, one valve rod is radially installed, this valve rod upper end is stretched out valve body and is coaxially installed with handle; In valve body, be axially installed with valve seat 4, 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 8, is all shaped with a 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, the rotation under the twisting force of valve rod of dish plate, thereby the keying of control valve.
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 orthohexagonal valve rod mounting hole 9; The axial two ends outer rim of valve seat is all shaped with edge bulge loop 7, 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 6, and this middle part bulge loop is inlaid in the limited ring groove that in valve body, correspondence is made, and this valve seat construction is simple, effectively prevent that valve seat from moving axially, good stability, and 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 and middle part bulge loop and valve seat one are made.
Guarantee the installation precision of valve rod and dish plate, described valve plate and corresponding valve rod mounting hole also can be made as quadrangular, rhombus, multi-corner star-shape or other polygonals.
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. without a butterfly valve for pin structure, comprise valve body, valve rod, dish plate and handle, at valve body middle part, one valve rod is radially installed, this valve rod upper end is stretched out valve body and is coaxially installed with handle; In valve body, be axially installed with valve seat, dish plate is radially installed on the valve rod in valve seat, 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 butterfly plate middle part, and butterfly plate is double-sided symmetrical structure.
2. the butterfly valve without pin structure according to claim 1, is characterized in that: valve outer wall spaced radial is shaped with a plurality of mounting plates (8), is all shaped with a mounting hole, for being connected with piping flange on the plurality of mounting plate.
3. the butterfly valve without pin structure according to claim 1, is characterized in that: 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 orthohexagonal valve rod mounting hole; The axial two ends outer rim of valve seat is all shaped with edge bulge loop, 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, and this middle part bulge loop is inlaid in the limited ring groove that in valve body, correspondence is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320516085.XU CN203500508U (en) | 2013-08-22 | 2013-08-22 | Butterfly valve of pin-free structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320516085.XU CN203500508U (en) | 2013-08-22 | 2013-08-22 | Butterfly valve of pin-free structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500508U true CN203500508U (en) | 2014-03-26 |
Family
ID=50331488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320516085.XU Expired - Fee Related CN203500508U (en) | 2013-08-22 | 2013-08-22 | Butterfly valve of pin-free structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500508U (en) |
-
2013
- 2013-08-22 CN CN201320516085.XU patent/CN203500508U/en not_active Expired - Fee Related
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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 |