CN207229773U - Centre-pivoted butterfly valve - Google Patents
Centre-pivoted butterfly valve Download PDFInfo
- Publication number
- CN207229773U CN207229773U CN201720855674.9U CN201720855674U CN207229773U CN 207229773 U CN207229773 U CN 207229773U CN 201720855674 U CN201720855674 U CN 201720855674U CN 207229773 U CN207229773 U CN 207229773U
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly plate
- butterfly
- valve body
- centre
- 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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Abstract
The utility model proposes a kind of centre-pivoted butterfly valve, including valve body, the valve interior wall is equipped with valve seat, the valve seat is internally provided with butterfly plate, the butterfly plate outer edge thickeies, and is respectively symmetrically equipped with N number of circular tooth in butterfly plate tow sides, the circular tooth is with order equidistant arrangement clockwise or counter-clockwise, the butterfly plate is linked by shaft, and the shaft top is equipped with co-acting lever.The utility model volume small portable, easily dismounting and maintenance, and can have optional position installation.Simple in structure, compact, 90 ° of revolutions open and close rapid.It is small to operate moment of torsion, it is laborsaving light and handy.
Description
Technical field
The present invention relates to butterfly valve, more particularly to a kind of centre-pivoted butterfly valve of plough groove type.
Background technology
Butterfly valve is called flap valve, is a kind of regulating valve simple in structure, what the switch available for low pressure pipeline medium controlled
Butterfly valve refers to that closure member (flap or butterfly plate) is disk, a kind of valve of open and close is reached around valve shaft rotation, valve can
For controlling all kinds such as empty gas and water, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium
The flowing of fluid.It is main on pipeline to play cut-out and throttling action.Butterfly valve opening and closing element is a discoidal butterfly plate, in valve body
Rotated around the axis of its own, so as to achieve the purpose that keying or adjusting.
The through-flow body butterfly valve used in the prior art, its butterfly plate piece is excessively thin, is running into particulate matter by being, easily plug is in butterfly
In the tight gap of board, what is had can be overly hard with thing, can knock butterfly plate and split, and causes the leakage of butterfly valve or even scrapping for butterfly valve.
The content of the invention
The present invention proposes a kind of centre-pivoted butterfly valve, solves the problems of the prior art.
The technical proposal of the invention is realized in this way：
Centre-pivoted butterfly valve, including valve body, the valve interior wall are equipped with valve seat, and valve seat is internally provided with butterfly plate, and butterfly plate outer edge adds
Thickness, is respectively symmetrically equipped with N number of circular tooth, the circular tooth is with the equidistant row of order clockwise or counter-clockwise in butterfly plate tow sides
Row, the butterfly plate are linked by shaft, and the shaft top is equipped with co-acting lever.
As the preferred solution of the present invention, the valve body includes upper valve body and lower valve body, is equipped with upper turn in the upper valve body
Axis, the lower valve body is interior to be equipped with lower rotary shaft, and the lower rotary shaft upper end is plugged in the butterfly plate, butterfly plate above shaft and lower rotary shaft
Place axis is rotated.
As the present invention preferred solution, the upper valve body include with lower valve body fasten buckling parts and the buckling parts on
The valve neck in portion, the interior through-hole pipe being equipped with through upper-lower section of the valve neck, upper shaft are inserted in through-hole pipe.
As the preferred solution of the present invention, the upper shaft lower end is fixed in the butterfly plate, when upper shaft rotates, butterfly
Plate rotates therewith.
As the preferred solution of the present invention, the upper valve body upper surface has been bolted landing slab, the landing slab
Top is equipped with handle, and the upper shaft is pierced by landing slab, and is bolted with the handle on landing slab.
As the preferred solution of the present invention, the circular tooth is using butterfly plate center as spot jamming annular array.
As the preferred solution of the present invention, the circular tooth includes left and right sides, leading flank and prism, four sides and bottom
Face forms the stereochemical structure that a side elevation is triangle, and left surface downward projection is overlapping with the outer eaves ring of butterfly plate.
As the preferred solution of the present invention, wherein 2≤N≤6.
Beneficial effect
The present invention proposes a kind of centre-pivoted butterfly valve, including valve body, and the valve interior wall is equipped with valve seat, is set inside the valve seat
There is butterfly plate, the butterfly plate outer edge thickeies, and is respectively symmetrically equipped with N number of circular tooth in butterfly plate tow sides, the circular tooth is with suitable
Hour hands or sequence counter-clockwise equidistant arrangement, the butterfly plate are linked by shaft, and the shaft top is equipped with co-acting lever.This hair
Phaneroplasm accumulates small portable, easily dismounting and maintenance, and can have optional position installation.Simple in structure, compact, 90 ° of revolutions open and close fast
Speed.It is small to operate moment of torsion, it is laborsaving light and handy.
Groove butterfly valve can allow two-way flow when installing without considering the direction of pipeline media flow.For solids
The control of material, often tank bottom as baiting valve come, such as cementing tank, the tank bottom of mountain flour tank, for blowing with it is quick
Cut-out.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other attached drawings according to these attached drawings.
Fig. 1 is the main view cross-sectional view of the present invention；
Fig. 2 is side structure schematic view of the present invention；
Fig. 3 is butterfly plate surface alignment around toothing schematic diagram；
Fig. 4 is around flank expanded schematic diagram.
Lower valve body 1, lower rotary shaft 2, the first O-ring 3, butterfly plate 4, valve body 5, the second O-ring 6, upper shaft 7, upper valve body 8, hand
Handle 9.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained without making creative work
Example is applied, belongs to the scope of protection of the invention.
As shown in Figs 1-4, centre-pivoted butterfly valve, including valve body, valve body are carbon steel material, and valve interior wall is equipped with valve seat, and valve seat is
Nitrile rubber material, valve seat are internally provided with butterfly plate 4, and butterfly plate outer edge thickeies, and 4 rings are respectively symmetrically equipped with butterfly plate tow sides
Around tooth, linked around tooth with order equidistant arrangement clockwise or counter-clockwise, butterfly plate 4 by shaft, shaft top is equipped with linkage
Handle 9.Wherein the material of butterfly plate is one kind in Stainless steel 316, spheroidal graphite cast-iron, stainless steel 304 or aluminium bronze.
Valve body includes upper valve body 8 and lower valve body 1, and upper shaft is equipped with upper valve body 8, lower rotary shaft 2 is equipped with lower valve body 1, under
2 upper end of shaft is plugged in the butterfly plate 4, and more than 4 shaft 7 of butterfly plate and 2 place axis of lower rotary shaft are rotated.Upper shaft with it is upper
Valve body is fixed, lower rotary shaft and lower valve body are fixed, and the first O types circle 3 of vertical tube and the second O-ring 6 are sealed respectively, above-mentioned O-ring
For one kind in nitrile rubber, ethylene propylene diene rubber or PTFE.
Upper valve body 8 includes the valve neck on the buckling parts and buckling parts top fastened with lower valve body 1, is equipped with and runs through in valve neck
The through-hole pipe of upper-lower section, upper shaft 7 are inserted in through-hole pipe.
Upper 7 lower end of shaft is fixed in butterfly plate 4, and when upper shaft 7 rotates, butterfly plate rotates therewith.
8 upper surface of upper valve body has been bolted landing slab, and landing slab top is equipped with handle, and upper shaft is pierced by platform
Plate, and be bolted with the handle on landing slab.Handle is spheroidal graphite cast-iron or aluminium section bar material.
As shown in figure 3, around tooth using butterfly plate center as spot jamming annular array.
Include left and right sides, leading flank and prism around tooth, as shown in figure 4, four sides and bottom surface form a side view
The stereochemical structure of triangle is projected as, left surface downward projection is overlapping with the outer eaves ring of butterfly plate.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (8)
1. centre-pivoted butterfly valve, including valve body, the valve interior wall is equipped with valve seat, it is characterised in that the valve seat is internally provided with butterfly plate
(4), the butterfly plate outer edge thickeies, and is respectively symmetrically equipped with N number of circular tooth in butterfly plate tow sides, the circular tooth is with clockwise
Or sequence counter-clockwise equidistant arrangement, the butterfly plate (4) are linked by shaft, the shaft top is equipped with co-acting lever (9).
2. centre-pivoted butterfly valve according to claim 1, it is characterised in that the valve body includes upper valve body (8) and lower valve body
(1), upper shaft is equipped with the upper valve body (8), lower rotary shaft (2), lower rotary shaft (2) upper end are equipped with the lower valve body (1)
It is plugged in the butterfly plate (4), axis where butterfly plate (4) above shaft (7) and lower rotary shaft (2) is rotated.
3. centre-pivoted butterfly valve according to claim 2, it is characterised in that the upper valve body (8) includes fastening with lower valve body (1)
Buckling parts and the buckling parts top valve neck, the through-hole pipe through upper-lower section, upper shaft (7) are equipped with the valve neck
Insert in through-hole pipe.
4. centre-pivoted butterfly valve according to claim 3, it is characterised in that the butterfly plate is fixed in upper shaft (7) lower end
(4) in, when upper shaft (7) rotates, butterfly plate rotates therewith.
5. centre-pivoted butterfly valve according to claim 2, it is characterised in that upper valve body (8) upper surface is bolted
There is landing slab, the landing slab top is equipped with handle, and the upper shaft is pierced by landing slab, and passes through spiral shell with the handle on landing slab
Bolt is fixed.
6. centre-pivoted butterfly valve according to claim 1, it is characterised in that the circular tooth is circularized using butterfly plate center as fixed point
Array.
7. centre-pivoted butterfly valve according to claim 6, it is characterised in that the circular tooth includes left and right sides, leading flank
And prism, form the stereochemical structure that side elevation is triangle with bottom surface on four sides, left surface downward projection with outside butterfly plate
Eaves ring is overlapping.
8. centre-pivoted butterfly valve according to claim 1, it is characterised in that wherein 2≤N≤6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720855674.9U CN207229773U (en) | 2017-07-14 | 2017-07-14 | Centre-pivoted butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720855674.9U CN207229773U (en) | 2017-07-14 | 2017-07-14 | Centre-pivoted butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207229773U true CN207229773U (en) | 2018-04-13 |
Family
ID=61853544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720855674.9U Expired - Fee Related CN207229773U (en) | 2017-07-14 | 2017-07-14 | Centre-pivoted butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207229773U (en) |
-
2017
- 2017-07-14 CN CN201720855674.9U patent/CN207229773U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20190714 |