CN209026216U - A kind of ball face sealing double eccentric butterfly valve - Google Patents
A kind of ball face sealing double eccentric butterfly valve Download PDFInfo
- Publication number
- CN209026216U CN209026216U CN201821702194.XU CN201821702194U CN209026216U CN 209026216 U CN209026216 U CN 209026216U CN 201821702194 U CN201821702194 U CN 201821702194U CN 209026216 U CN209026216 U CN 209026216U
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- valve
- sealing
- output end
- annulus
- fixing groove
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Abstract
The utility model discloses a kind of ball face sealing double eccentric butterfly valves, including valve body, spool and headstock gear, spool includes valve plate, upper valve rod and lower valve rod, a sealing cover is fixed on the output end of valve body, there is mutual corresponding fixing groove on sealing cover and output end, one elastic seal ring is fixed between output end and sealing cover, elastic seal ring is by pedestal, triangle sealing and one to turnup on the inside of output end bezel ring, composition, pedestal is fixed in fixing groove, array is gone back on bezel ring, a plurality of notch, the raised annulus in the side of valve plate, annulus periphery is slope corresponding with sealing, upper surface when valve is closed on the inside of sealing with the sealed connection of annulus outer surface and bezel ring, cladding annulus, the utility model long service life.
Description
Technical field
The utility model relates to a kind of ball face sealing double eccentric butterfly valves.
Background technique
Butterfly valve is called flap valve, is a kind of simple regulating valve of structure, refers to that closure member (flap or butterfly plate) is disk, encloses
It is rotated around valve shaft to reach a kind of valve of open and close；In actual use, sealing ring is inevitable as long-time uses
Certain gap can be generated between reasons and valve plate to make medium generate micro leakage because of abrasion etc., the medium of leakage is constantly straight
It connects and washes away the gap and make gap enlargement, to accelerate the damage of sealing ring, butterfly valve whole service life is caused to shorten.
Utility model content
The utility model aim is to overcome above-mentioned the deficiencies in the prior art, provides a kind of ball face sealing double eccentric butterfly valve.
The technical solution of the utility model is: a kind of ball face sealing double eccentric butterfly valve, including valve body, spool and opening and closing dress
It sets, spool includes valve plate, upper valve rod and lower valve rod；Valve body upper and lower part is respectively provided with mounting hole, and upper valve rod top is rotatably
Across the mounting hole on valve body top and the output axis connection of headstock gear, lower valve rod lower part, which is freely rotatable, is placed in valve body lower portion
In mounting hole, the valve plate is hollow valve plate, is fixed with a sealing cover on the output end of the valve body, the sealing cover and described
There is mutual corresponding fixing groove, an elastic seal ring is fixed between the output end and sealing cover, the bullet on output end
Property sealing ring formed from pedestal, triangle sealing and one to the bezel ring, of turnup on the inside of output end, the pedestal is fixed on institute
It states in fixing groove, array is gone back on the bezel ring, an a plurality of notch, the raised annulus in the side of the valve plate, outside the annulus
The corresponding slope of sealing described in Zhou Weiyu, valve seal on the inside of the sealing with the annulus outer surface when closing
The upper surface of connection and bezel ring, cladding annulus.
Further, the pedestal, sealing and bezel ring, are rubber integrated formed structure.
Further, the other side of the valve plate is arc surface.
Further, it is "T"-shaped, the cross-section of the pedestal that the fixing groove on the sealing cover and the output end, which fastens,
Shape after dividing shape to fasten with the fixing groove is corresponding.
The beneficial effects of the utility model are: the utility model devises special sealing ring, valve is described close when closing
On the inside of envelope portion and the annulus outer surface is tightly connected and the upper surface of bezel ring, cladding annulus, even if valve plate and sealing
Between produce gap because of abrasion, due to the presence of bezel ring, make the medium of micro leakage that can not form powerful impact force and damage
Ruin sealing；On the other hand, which is fixed between sealing cover and output end, and sealing cover is detachable structure, convenient for close
The replacement of seal ring improves the service life of butterfly valve entirety.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model elastic seal ring.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Referring to figs. 1 and 2, a kind of ball face sealing double eccentric butterfly valve, including valve body 1, spool and headstock gear 2,
Spool includes valve plate 3, upper valve rod 4 and lower valve rod 5；1 upper and lower part of valve body is respectively provided with mounting hole, and 4 top of upper valve rod is freely rotatable
Ground passes through the mounting hole on 1 top of valve body and the output axis connection of headstock gear 2, and 5 lower part of lower valve rod, which is freely rotatable, is placed in valve body 1
In the mounting hole of lower part, the valve plate 3 is hollow valve plate, is fixed with a sealing cover 6 on the output end 7 of the valve body 1, described close
There is mutual corresponding fixing groove, an elastic seal ring 8 is fixed on the output end 7 and sealing in capping 6 and the output end 7
Between lid 6, the elastic seal ring is from pedestal 9, triangle sealing 10 and one to 11 groups of bezel ring, of 7 inside turnup of output end
At the pedestal 9 is fixed in the fixing groove, and array is gone back on the bezel ring, 11 a plurality of notch 12, the side of the valve plate 3
Raised annulus 13,13 periphery of annulus be slope corresponding with the sealing 10, valve close when described in
10 inside of sealing and 13 outer surface of annulus are tightly connected and the upper surface of the cladding annulus 13 of the bezel ring, 11.
Further, the pedestal 9, sealing 10 and bezel ring, 11 are rubber integrated formed structure.
Further, the other side of the valve plate 3 is arc surface.
Further, it is "T"-shaped, section of the pedestal 9 that the fixing groove on the sealing cover 6 and the output end 7, which fastens,
Shape after face partial shape is fastened with the fixing groove is corresponding.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet
Include any and all combinations of one or more related listed items.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (4)
1. a kind of ball face sealing double eccentric butterfly valve, including valve body, spool and headstock gear, spool includes valve plate, upper valve rod and
Lower valve rod；Valve body upper and lower part is respectively provided with mounting hole, and upper valve rod top rotatably passes through the mounting hole on valve body top and opens
The output axis connection of device is closed, lower valve rod lower part is freely rotatable in the mounting hole for being placed in valve body lower portion, it is characterised in that: described
Valve plate is hollow valve plate, is fixed with a sealing cover on the output end of the valve body, has on the sealing cover and the output end
Mutual corresponding fixing groove, an elastic seal ring are fixed between the output end and sealing cover, and the elastic seal ring is by base
Seat, triangle sealing and one form to the bezel ring, of turnup on the inside of output end, and the pedestal is fixed in the fixing groove, institute
State and go back array on bezel ring, and have an a plurality of notch, the raised annulus in the side of the valve plate, the annulus periphery be with it is described close
The corresponding slope in envelope portion, valve the sealing inside and annulus outer surface sealed connection and lid when closing
The upper surface of ring cladding annulus.
2. a kind of ball face sealing double eccentric butterfly valve according to claim 1, it is characterised in that: the pedestal, sealing and
Bezel ring, is rubber integrated formed structure.
3. a kind of ball face sealing double eccentric butterfly valve according to claim 1, it is characterised in that: the other side of the valve plate is
Arc surface.
4. a kind of ball face sealing double eccentric butterfly valve according to claim 1, it is characterised in that: the sealing cover and described defeated
Fixing groove in outlet fasten be it is "T"-shaped, the section shape of the pedestal is opposite with the shape after fixing groove fastening
It answers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821702194.XU CN209026216U (en) | 2018-10-19 | 2018-10-19 | A kind of ball face sealing double eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821702194.XU CN209026216U (en) | 2018-10-19 | 2018-10-19 | A kind of ball face sealing double eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209026216U true CN209026216U (en) | 2019-06-25 |
Family
ID=66907994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821702194.XU Active CN209026216U (en) | 2018-10-19 | 2018-10-19 | A kind of ball face sealing double eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209026216U (en) |
-
2018
- 2018-10-19 CN CN201821702194.XU patent/CN209026216U/en active Active
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