CN204387353U - The expanding butterfly valve of a kind of heavy caliber - Google Patents
The expanding butterfly valve of a kind of heavy caliber Download PDFInfo
- Publication number
- CN204387353U CN204387353U CN201420771785.8U CN201420771785U CN204387353U CN 204387353 U CN204387353 U CN 204387353U CN 201420771785 U CN201420771785 U CN 201420771785U CN 204387353 U CN204387353 U CN 204387353U
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- China
- Prior art keywords
- valve
- valve seat
- shaped
- valve rod
- valve body
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to the expanding butterfly valve of a kind of heavy caliber, comprise valve body, valve rod, valve seat, dish plate and locating stud, in the middle part of valve body, longitudinally a valve rod is installed, valve seat is axially installed with in valve body, on valve rod in valve seat, radial direction is provided with dish plate, in the middle part of valve seat, upper end radial direction is shaped with a stem sleeve coordinated with valve rod, and this stem sleeve embeds in the made valve rod mounting hole in valve body top; The axial two ends outer rim of valve seat is all shaped with edge bulge loop, the interior side ring surface of this edge bulge loop coated valve body radial end face, and is shaped with the radial end face that an outer positioning convex ring embeds valve end in the outer of edge bulge loop; In the middle part of valve seat, periphery is coaxially shaped with a bracing ring, and this bracing ring is inlaid in the corresponding middle part annular groove made of valve seat.The utility model is a kind of expanding butterfly valve of 350mm bore, and structural strength is high, can be suitable for installing and using of multiple standards pipeline, and this valve easily controls, and structure is simple, and the installation of valve part is simple, long service life.
Description
Technical field
The utility model belongs to valve field, the expanding butterfly valve of especially a kind of heavy caliber.
Background technique
Engineering pipeline transportation art valve use widely, the basic structure of present valve is co-axial seal setting-in valve seat in valve body, radial installation valve rod on valve body, valve rod in valve body is fixedly mounted with valve plate, valve plate coordinates with valve base sealing, valve plate rotation or movement thus the runner opened and closed in valve seat under the driving of valve rod; Valve body outer radial is shaped with multiple flange plate for being connected with pipeline, and flange plate is shaped with bolt mounting holes.
The service condition of valve is larger for the deformation effect of valve seat, especially pipeline pressure, in order to ensure that valve seat at amount of deformation in the reasonable scope, ensure sealability, under specific pipeline requires, larger to the restriction of valve aperture, and large discharge pipeline needs to coordinate large bore valves, existing valve is difficult to reach requirement, and working life is short, usually takes diversion design or frequently changes valve.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, provide a kind of reasonable in design, structure is simple, the expanding butterfly valve of heavy caliber that is easy to operate, long service life.
The utility model solves its technical problem and takes following technological scheme to realize:
The expanding butterfly valve of a kind of heavy caliber, comprise valve body, valve rod, valve seat, dish plate and locating stud, in the middle part of valve body, longitudinally a valve rod is installed, valve seat is axially installed with in valve body, on valve rod in valve seat, radial direction is provided with dish plate, this dish plate is fixedly mounted with by centralized positioning pin and valve rod, it is characterized in that: in the middle part of valve seat, upper end radial direction is shaped with a stem sleeve coordinated with valve rod, and this stem sleeve embeds in the made valve rod mounting hole in valve body top; The axial two ends outer rim of valve seat is all shaped with edge bulge loop, the interior side ring surface of this edge bulge loop coated valve body radial end face, and is shaped with the radial end face that an outer positioning convex ring embeds valve end in the outer of edge bulge loop.
And described valve rod top is round bar, valve rod lower end is made as positive six prism structures, and the valve rod of these positive six prismatic parts is coaxially inlaid in regular hexagon valve rod mounting hole made in the middle part of dish plate; Dish plate is double-sided symmetrical structure, and dish plate outer rim adopts polishing treatment to be hemisphere face.
And described valve outer wall spaced radial symmetry is shaped with mounting plate, mounting plate is the mounting plates structure being shaped with elongated hole mounting plates structure or adopting opening mounting ear formula.
Advantage of the present utility model and good effect are:
1, the utility model adopts the kiss-coating valve seat of moulding by casting, valve seat two ends are all shaped with the flanging affixed with valve body, effectively can ensure axial stability and the sealed precision of valve seat, avoid the problem causing because of Long-Time Service valve seat to loosen, extend valve working life.
2, the utility model is a kind of expanding butterfly valve of DN 350mm bore, and structural strength is high, can be suitable for installing and using of multiple standards pipeline, and this valve easily controls, and structure is simple, and the installation of valve part is simple, long service life.
Accompanying drawing explanation
Fig. 1 is structural front view of the present utility model;
Fig. 2 be Fig. 1 partly cut open structure left view;
Fig. 3 is another example structure schematic diagram;
Fig. 4 is A portion partial enlarged drawing in Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, also 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.
The expanding butterfly valve of a kind of heavy caliber, comprise valve body 2, valve rod 1, valve seat 4, dish plate 5 and locating stud 6, in the middle part of valve body, longitudinally a valve rod is installed, in valve body, is axially installed with valve seat, on valve rod in valve seat, radial direction is provided with dish plate, and this dish plate is fixedly mounted with by centralized positioning pin and valve rod.
Valve outer wall spaced radial symmetry is shaped with mounting plate, and mounting plate, for being shaped with elongated hole mounting plates structure (accompanying drawing 1) or adopting open type mounting ear (accompanying drawing 3) structure, is convenient to be connected with the pipeline of plurality of specifications.
Innovative point of the present utility model is:
Described valve rod top is round bar, and valve rod lower end is made as positive six prism structures, and the valve rod of these positive six prismatic parts is coaxially inlaid in regular hexagon valve rod mounting hole made in the middle part of dish plate; 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, thus the keying of control valve; Dish plate outer rim adopts polishing treatment to be hemisphere face, reduces operational torque, dish plate and being sealed and matched of valve seat when ensureing sealing.
Described valve seat is one-body molded wide the seal valve seat made of rubber, in the middle part of valve seat, upper end radial direction is shaped with a stem sleeve coordinated with valve rod 9, this stem sleeve embeds in the made valve rod mounting hole in valve body top and strengthens valve seat installation stability, this stem sleeve strengthens valve stem seal, reduces valve rod moment of torsion.
Shown in accompanying drawing 3, the axial two ends outer rim of valve seat is all shaped with edge bulge loop 8, the interior side ring surface of this edge bulge loop coated valve body radial end face, and the radial end face being shaped with that in the outer of edge bulge loop an outer positioning convex ring embeds valve end, effectively ensure the positioning precision of valve seat.
Be shaped with a cambered surface coaxially arched upward in the middle part of valve base inner wall protruding, the inner radial wall of this cambered surface projection coordinates effective sealing to block runner with dish plate;
In order to ensure installation precision and the stability of valve seat further, a bracing ring 11 is shaped with outside cambered surface projection, this bracing ring is inlaid in the corresponding middle part annular groove made of valve seat, effectively prevent valve seat from moving axially, good stability, and middle part is shaped with the valve seat intensity of bracing ring greatly, avoids valve seat to swell and be out of shape.
This valve seat adopts assembling mode of colding pressing to install.
Although disclose embodiment of the present utility model and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the utility model and claims, various replacement, change and amendment are all possible, therefore, scope of the present utility model is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (3)
1. the expanding butterfly valve of heavy caliber, comprise valve body, valve rod, valve seat, dish plate and locating stud, in the middle part of valve body, longitudinally a valve rod is installed, valve seat is axially installed with in valve body, on valve rod in valve seat, radial direction is provided with dish plate, this dish plate is fixedly mounted with by centralized positioning pin and valve rod, it is characterized in that: in the middle part of valve seat, upper end radial direction is shaped with a stem sleeve coordinated with valve rod, and this stem sleeve embeds in the made valve rod mounting hole in valve body top; The axial two ends outer rim of valve seat is all shaped with edge bulge loop, the interior side ring surface of this edge bulge loop coated valve body radial end face, and is shaped with the radial end face that an outer positioning convex ring embeds valve end in the outer of edge bulge loop; In the middle part of valve seat, periphery is coaxially shaped with a bracing ring, and this bracing ring is inlaid in the corresponding middle part annular groove made of valve seat.
2. the expanding butterfly valve of heavy caliber according to claim 1, is characterized in that: described valve rod top is round bar, and valve rod lower end is made as positive six prism structures, and the valve rod of these positive six prismatic parts is coaxially inlaid in regular hexagon valve rod mounting hole made in the middle part of dish plate; Dish plate is double-sided symmetrical structure, and dish plate outer rim adopts polishing treatment to be hemisphere face.
3. the expanding butterfly valve of heavy caliber according to claim 1, is characterized in that: described valve outer wall spaced radial symmetry is shaped with mounting plate, and mounting plate is the mounting plates structure being shaped with elongated hole mounting plates structure or adopting opening mounting ear formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771785.8U CN204387353U (en) | 2014-12-09 | 2014-12-09 | The expanding butterfly valve of a kind of heavy caliber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771785.8U CN204387353U (en) | 2014-12-09 | 2014-12-09 | The expanding butterfly valve of a kind of heavy caliber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387353U true CN204387353U (en) | 2015-06-10 |
Family
ID=53360075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420771785.8U Expired - Fee Related CN204387353U (en) | 2014-12-09 | 2014-12-09 | The expanding butterfly valve of a kind of heavy caliber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204387353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630751A (en) * | 2018-06-21 | 2019-12-31 | 浙江三花制冷集团有限公司 | a fluid control valve |
-
2014
- 2014-12-09 CN CN201420771785.8U patent/CN204387353U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630751A (en) * | 2018-06-21 | 2019-12-31 | 浙江三花制冷集团有限公司 | a fluid control valve |
| CN110630751B (en) * | 2018-06-21 | 2023-08-01 | 浙江三花商用制冷有限公司 | A fluid control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20161209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |