CN108716551A - A kind of double eccentric flexible sealing low water drag butterfly valves - Google Patents
A kind of double eccentric flexible sealing low water drag butterfly valves Download PDFInfo
- Publication number
- CN108716551A CN108716551A CN201810770854.6A CN201810770854A CN108716551A CN 108716551 A CN108716551 A CN 108716551A CN 201810770854 A CN201810770854 A CN 201810770854A CN 108716551 A CN108716551 A CN 108716551A
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- CN
- China
- Prior art keywords
- valve plate
- valve
- mounting groove
- valve seat
- upper axis
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
A kind of double eccentric flexible sealing low water drag butterfly valves are related to valve field.It mainly solves the problems such as existing butterfly valve forms turbulent flow injury pipeline and designs.It includes valve body, and valve seat is mounted in the valve seat mounting groove of valve body, has O-ring seal, the inner periphery of valve seat to be gradually formed slopely inclined-plane to valve body from the front to the back in the O-ring seal mounting groove of valve seat；Preceding valve plate and rear valve plate are mounted in valve seat, have valve plate sealing ring in the valve plate sealing ring mounting groove of forward and backward valve plate；Preceding valve plate is gradually forwardly convex to center by outer edge, and rear valve plate is gradually protruded backward by outer edge to center, there is upper axis installation set and lower axle installation set on rear valve plate；Worm gear case is mounted in body top, and upper axis is connect with the worm gear in worm gear case, and upper axis is fixed with upper axis installation set；Lower axle is mounted in lower shaft mounting hole, and lower axle is fixed with lower axle installation set, and pushing is pressed against on the locating ring of lower axle bottom, and lower cover is fixed on valve body.Advantage is that the injury to pipeline is small.
Description
Technical field：
The present invention relates to valve fields, are specifically related to a kind of butterfly valve applied on aqueduct.
Background technology：
It is existing to apply in the butterfly valve work on aqueduct because of the big formation turbulent flow of water resistance, injure pipeline.In addition when butterfly valve is closed,
Positive pressure is generated in aqueduct or negative pressure causes to impact to valve plate, makes leak occur because generating gap between valve plate and valve seat
Situation, and the opening time is long.
Invention content：
Technical problem to be solved by the invention is to provide a kind of water resistance is small, pipeline is injured it is small, it is watertight double eccentric soft close
Seal low water drag butterfly valve.
What above-mentioned purpose was realized in：It includes the valve body of annular, and the valve seat peace of annular is provided on the internal ring wall of valve body
Tankage, annular valve seat are mounted on by positioning wedge key in valve seat mounting groove, and the thickness of valve seat is slightly less than the width of valve seat mounting groove
Degree, if the excircle of valve seat is equipped with the O-ring seal mounting groove of arterial highway annular, all insert in per pass O-ring seal mounting groove
There are O-ring seal, the inner periphery of valve seat to be gradually formed slopely inclined-plane to valve body from the front to the back；I.e. the diameter of valve seat inner ring is by forward direction
Gradually increase afterwards；
Further include preceding valve plate and rear valve plate, together with preceding valve plate is bolted with rear valve plate, preceding valve plate and the installation of rear valve plate
In valve seat, the outer edge of preceding valve plate and rear valve plate is contacted with the inner periphery of valve seat, is opened on the excircle of preceding valve plate and rear valve plate
There are valve plate sealing ring mounting groove, valve plate sealing ring to be mounted in valve plate sealing ring mounting groove；
Preceding valve plate is gradually forwardly convex to center by outer edge, and rear valve plate is gradually protruded backward by outer edge to center, i.e., preceding valve
Plate is forwardly convex arc from the side, and rear valve plate is from the side the arc protruded backward, and the rear end of rear valve plate is fixed with
Upper axis installation set and lower axle installation set；
Worm gear case is mounted in body top, and shaft mounting hole, the snail in the top and worm gear case of upper axis are provided on valve body
Wheel is extend into upper axis installation set after passing through in upper shaft mounting hole and is fixed by key, worm and gear by key connection, upper axis
Work can drive valve plate to be overturn in valve seat, realize the opening and closing of valve；
Lower shaft mounting hole is provided on valve body below upper shaft mounting hole, lower axle is mounted in lower shaft mounting hole, is stretched at the top of lower axle
Enter into the lower axle installation set of rear valve plate and fixed by key, there is locating ring, lower axle to be slided with locating ring on the diameter of axle of lower axle bottom
Dynamic contact, pushing are pressed against on locating ring, and lower cover is screwed on valve body.
The airtight and watertight padding mounting groove of annular is provided on the hole wall of upper shaft mounting hole, airtight and watertight padding is installed mounted on airtight and watertight padding
In slot, airtight and watertight padding is contacted with upper axis, and the upper press cover of annular is equipped with above airtight and watertight padding, and annular upper press cover is fixed by screw
On valve body, the hole wall of the upper shaft mounting hole below airtight and watertight padding is equipped with upper compound sleeve, upper compound sleeve and upper axis sliding contact.
Have lower compound sleeve on the hole wall of lower shaft mounting hole, lower compound sleeve with lower axle sliding contact.
There are certain distance between the longitudinal center line of upper axis and the longitudinal center line of valve body, in the axial direction of valve plate sealing ring
There are certain distances between heart line and the longitudinal center line of upper axis.
The distance between the longitudinal center line of upper axis and the longitudinal center line of valve body are 5 ㎜, in the axial direction of valve plate sealing ring
The distance between heart line and the longitudinal center line of upper axis are 75 ㎜.
It is an advantage of the invention that：Due to preceding valve plate by outer edge to central gradually forwardly convex, rear valve plate by outer edge extremely
Central gradually protrusion forms arc transition backward, can reduce water resistance in this way, reduce the injury to pipeline.When occurring positive pressure in pipeline
When impacting valve plate, since the diameter of valve seat inner ring gradually increases from the front to the back, the contact that valve plate is more moved forward with valve seat is tighter
It is close；When occurring negative pressure impact valve plate in pipeline, since the thickness of valve seat is slightly less than the width of valve seat mounting groove, valve seat moves back
Dynamic, contact while valve seat moves backward with valve plate is also closer, the case where being not in leak, ensure it is safe to use can
It leans on.Since upper axis is relative to valve body bias, sealing ring can make valve plate be detached from valve seat rapidly, subtract relative to upper eccentric shaft, double bias
Few opening time, extend sealing ring service life.
Description of the drawings：
Fig. 1 is the main structure diagram of the present invention；
Fig. 2 is the side elevational cross-section structural schematic diagram of the present invention.
Specific implementation mode：
With reference to Fig. 1 and Fig. 2, the present invention will be further described；
It includes the valve body 1 of annular, and the valve seat mounting groove of annular is provided on the internal ring wall of valve body, and annular valve seat 2 passes through positioning
Wedge key 3 is mounted in valve seat mounting groove, and the thickness of valve seat is slightly less than the width of valve seat mounting groove, if the excircle of valve seat is equipped with
The O-ring seal mounting groove of arterial highway annular is all installed with O-ring seal 4, the inner circle of valve seat in per pass O-ring seal mounting groove
Week is gradually formed slopely inclined-plane to valve body from the front to the back；I.e. the diameter of valve seat inner ring gradually increases from the front to the back；
Further include preceding valve plate 5 and rear valve plate 6, together with preceding valve plate is bolted with rear valve plate, preceding valve plate and rear valve plate peace
In valve seat, the outer edge of preceding valve plate and rear valve plate is contacted with the inner periphery of valve seat, on the excircle of preceding valve plate and rear valve plate
It is provided with valve plate sealing ring mounting groove, valve plate sealing ring 7 is mounted in valve plate sealing ring mounting groove；
Preceding valve plate is gradually forwardly convex to center by outer edge, and rear valve plate is gradually protruded backward by outer edge to center, i.e., preceding valve
Plate is forwardly convex arc from the side, and rear valve plate is from the side the arc protruded backward, and the rear end of rear valve plate is fixed with
Upper axis installation set 8 and lower axle installation set 9；
Worm gear case 10 is mounted in body top, is provided with shaft mounting hole on valve body, in the top and worm gear case of upper axis 11
Worm gear 12 by key connection, upper axis extend into upper axis installation set after passing through in upper shaft mounting hole and fixed by key, snail
Worm and gear work can drive valve plate to be overturn in valve seat, realize the opening and closing of valve；
Lower shaft mounting hole is provided on valve body below upper shaft mounting hole, lower axle 17 is mounted in lower shaft mounting hole, the top of lower axle
It extend into the lower axle installation set of rear valve plate and is fixed by key, there is locating ring 18, lower axle and positioning on the diameter of axle of lower axle bottom
Ring sliding contact, lower cover 19 are pressed on locating ring, and lower cover is screwed on valve body.
The airtight and watertight padding mounting groove of annular is provided on the hole wall of upper shaft mounting hole, airtight and watertight padding 13 is pacified mounted on airtight and watertight padding
In tankage, airtight and watertight padding is contacted with upper axis, and the upper press cover 14 of annular is equipped with above airtight and watertight padding, and annular upper press cover passes through screw
It is fixed on valve body, the hole wall of the upper shaft mounting hole below airtight and watertight padding is equipped with upper compound sleeve 15, and upper compound sleeve is slided with upper axis
Dynamic contact.
Have lower compound sleeve 16 on the hole wall of lower shaft mounting hole, lower compound sleeve with lower axle sliding contact.
There are certain distance between the longitudinal center line of upper axis and the longitudinal center line of valve body, in the axial direction of valve plate sealing ring
There are certain distances between heart line and the longitudinal center line of upper axis.
The distance between the longitudinal center line of upper axis and the longitudinal center line of valve body are 5 ㎜, in the axial direction of valve plate sealing ring
The distance between heart line and the longitudinal center line of upper axis are 75 ㎜.
Claims (5)
1. a kind of double eccentric flexible sealing low water drag butterfly valves include the valve body of annular（1）, the valve of annular is provided on the internal ring wall of valve body
Seat mounting groove, annular valve seat（2）By positioning wedge key（3）In valve seat mounting groove, it is characterized in that：The thickness of valve seat omits
Less than the width of valve seat mounting groove, if the excircle of valve seat is equipped with the O-ring seal mounting groove of arterial highway annular, per pass is O-shaped close
It is all installed with O-ring seal in seal mounting groove（4）, the inner periphery of valve seat is gradually formed slopely inclined-plane to valve body from the front to the back；
I.e. the diameter of valve seat inner ring gradually increases from the front to the back；
It further include preceding valve plate（5）With rear valve plate（6）, together with preceding valve plate is bolted with rear valve plate, preceding valve plate and rear valve
Plate is mounted in valve seat, and the outer edge of preceding valve plate and rear valve plate is contacted with the inner periphery of valve seat, the outer circle of preceding valve plate and rear valve plate
Valve plate sealing ring mounting groove, valve plate sealing ring are provided on week（7）In valve plate sealing ring mounting groove；
Preceding valve plate is gradually forwardly convex to center by outer edge, and rear valve plate is gradually protruded backward by outer edge to center, rear valve plate
Rear end be fixed with axis installation set（8）With lower axle installation set（9）；
Worm gear case（10）Shaft mounting hole, upper axis are provided on body top, valve body（11）Top and worm and gear
Worm gear in case（12）By key connection, upper axis extend into upper axis installation set after passing through in upper shaft mounting hole and is consolidated by key
It is fixed；
Lower shaft mounting hole, lower axle are provided on valve body below upper shaft mounting hole（17）In lower shaft mounting hole, the top of lower axle
Portion extend into the lower axle installation set of rear valve plate and is fixed by key, has locating ring on the diameter of axle of lower axle bottom（18）, lower cover
（19）It is pressed on locating ring, lower cover is screwed on valve body.
2. double eccentric flexible sealing low water drag butterfly valves described in accordance with the claim 1, it is characterized in that：It is opened on the hole wall of upper shaft mounting hole
There are the airtight and watertight padding mounting groove of annular, airtight and watertight padding（13）In airtight and watertight padding mounting groove, airtight and watertight padding is contacted with upper axis,
The upper press cover of annular is equipped with above airtight and watertight padding（14）, annular upper press cover is fixed by screws on valve body, under airtight and watertight padding
The hole wall of the upper shaft mounting hole of side is equipped with upper compound sleeve（15）, upper compound sleeve and upper axis sliding contact.
3. according to double eccentric flexible sealing low water drag butterfly valves as claimed in claim 1 or 2, it is characterized in that：The hole wall of lower shaft mounting hole
On have lower compound sleeve（16）, lower compound sleeve with lower axle sliding contact.
4. according to double eccentric flexible sealing low water drag butterfly valves as claimed in claim 1 or 2, it is characterized in that：The longitudinal center line of upper axis
There are distances between the longitudinal center line of valve body, are stayed between the longitudinal center line of valve plate sealing ring and the longitudinal center line of upper axis
There is distance.
5. double eccentric flexible sealing low water drag butterfly valves according to claim 4, it is characterized in that：The longitudinal center line and valve of upper axis
The distance between longitudinal center line of body is 5 ㎜, between the longitudinal center line of valve plate sealing ring and the longitudinal center line of upper axis
Distance is 75 ㎜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810770854.6A CN108716551A (en) | 2018-07-13 | 2018-07-13 | A kind of double eccentric flexible sealing low water drag butterfly valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810770854.6A CN108716551A (en) | 2018-07-13 | 2018-07-13 | A kind of double eccentric flexible sealing low water drag butterfly valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108716551A true CN108716551A (en) | 2018-10-30 |
Family
ID=63913481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810770854.6A Pending CN108716551A (en) | 2018-07-13 | 2018-07-13 | A kind of double eccentric flexible sealing low water drag butterfly valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108716551A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2900952Y (en) * | 2005-11-25 | 2007-05-16 | 姜元增 | Butterfly valve with novel seal structure |
| CN203335887U (en) * | 2013-07-02 | 2013-12-11 | 温州蓝天管件阀门有限公司 | Bi-direction sealing triple-eccentric butterfly valve |
| CN205101574U (en) * | 2015-10-27 | 2016-03-23 | 天津银河阀门有限公司 | Valve body, Seat kits of two eccentric cast iron butterfly valves of soft seal |
| CN106609848A (en) * | 2015-10-27 | 2017-05-03 | 天津银河阀门有限公司 | Valve plate sealing ring with fluoroplastic cladding layer for soft-sealed double eccentric butterfly valve |
| CN206377333U (en) * | 2017-01-05 | 2017-08-04 | 河南理工大学 | A kind of leafy flap valve manually |
| CN206429670U (en) * | 2016-12-30 | 2017-08-22 | 胡嘉诚 | A kind of bidirectional sealed butterfly valve and its trim ring |
| CN208417556U (en) * | 2018-07-13 | 2019-01-22 | 辽阳给排水设备阀门有限公司 | A kind of double eccentric flexible sealing low water drag butterfly valves |
-
2018
- 2018-07-13 CN CN201810770854.6A patent/CN108716551A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2900952Y (en) * | 2005-11-25 | 2007-05-16 | 姜元增 | Butterfly valve with novel seal structure |
| CN203335887U (en) * | 2013-07-02 | 2013-12-11 | 温州蓝天管件阀门有限公司 | Bi-direction sealing triple-eccentric butterfly valve |
| CN205101574U (en) * | 2015-10-27 | 2016-03-23 | 天津银河阀门有限公司 | Valve body, Seat kits of two eccentric cast iron butterfly valves of soft seal |
| CN106609848A (en) * | 2015-10-27 | 2017-05-03 | 天津银河阀门有限公司 | Valve plate sealing ring with fluoroplastic cladding layer for soft-sealed double eccentric butterfly valve |
| CN206429670U (en) * | 2016-12-30 | 2017-08-22 | 胡嘉诚 | A kind of bidirectional sealed butterfly valve and its trim ring |
| CN206377333U (en) * | 2017-01-05 | 2017-08-04 | 河南理工大学 | A kind of leafy flap valve manually |
| CN208417556U (en) * | 2018-07-13 | 2019-01-22 | 辽阳给排水设备阀门有限公司 | A kind of double eccentric flexible sealing low water drag butterfly valves |
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