CN205780930U - Ensure the high-performance butterfly valve of double containment - Google Patents
Ensure the high-performance butterfly valve of double containment Download PDFInfo
- Publication number
- CN205780930U CN205780930U CN201620692638.0U CN201620692638U CN205780930U CN 205780930 U CN205780930 U CN 205780930U CN 201620692638 U CN201620692638 U CN 201620692638U CN 205780930 U CN205780930 U CN 205780930U
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- CN
- China
- Prior art keywords
- valve shaft
- butterfly plate
- sealing ring
- regulation
- butterfly
- 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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- 238000007789 sealing Methods 0.000 claims abstract description 94
- 238000003825 pressing Methods 0.000 claims abstract description 51
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 241001612100 Capparimyia savastani Species 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses the high-performance butterfly valve ensureing double containment, including valve body, butterfly plate and valve shaft, valve shaft is divided into valve shaft and lower valve shaft, it also includes composite bearing, regulation pressing plate, described butterfly plate both sides are provided with the first sealing ring at valve body sealing surface, it is provided with regulation screw hole on described regulation pressing plate, it is provided with regulation screw on regulation pressing plate, described regulation screw hole is provided with the second sealing ring at the nut of regulation screw, butterfly plate surface is provided with at the 3rd sealing ring regulated between pressing plate and butterfly plate away from the end of the first sealing ring near regulation pressing plate.Composite bearing is used to support valve shaft, butterfly plate uses flat key to be connected transmission with valve shaft, transmission moment of torsion is big and readily accessible maintenance, first sealing ring contacts with wider valve body sealing surface, butterfly plate can effectively reduce the moment of torsion of valve when opening and closing, extend valve service life simultaneously, regulation pressing plate is capable of reversely the sealing of valve, when preventing butterfly plate from closing in the inefficacy of pressure medium lower seal.
Description
Technical field
This utility model relates to a kind of butterfly valve, especially ensures the high-performance butterfly valve of double containment.
Background technology
Butterfly valve is as the control element being connected with pipe-line equipment, and in the keying operating process of valve, client wishes
Reduce the open and close torque of valve as far as possible.Using taper bolt to be connected transmission at present between butterfly plate and the valve shaft of butterfly valve, taper bolt runs through
Valve shaft, need to strengthen valve shaft diameter to increase valve shaft intensity, and production cost so can be caused to improve and the increase of moment of torsion, and circular cone
Pin is closely cooperating of taper, and when valve shaft and butterfly plate, to need dismounting to pull down taper bolt when separating the most extremely difficult.Client couple at present
Being desirable that it is two way seal in butterfly valve, the butterfly valve of traditional structure can only realize one-way sealing, and one-way sealing to realize two-way close
Envelope, can only increase the diameter of valve shaft, strengthen the intensity of butterfly plate.Although and some butterfly valves can realize two way seal, but structure is complicated,
Part is more, adds production difficulty and production cost.
Utility model content
The purpose of this utility model is to solve to strengthen valve shaft diameter moment of torsion to be caused to increase and existing bidirectional sealed butterfly valve knot
The problem that structure is complicated, production cost is high.
The technical solution adopted in the utility model is: ensure the high-performance butterfly valve of double containment, including valve body, butterfly plate and valve
Axle, valve shaft is divided into valve shaft and lower valve shaft, and it also includes composite bearing, regulation pressing plate, and described composite bearing is respectively arranged at valve
Body is at upper valve shaft and valve body is at lower valve shaft, and described upper valve shaft and lower valve shaft are lived with the composite bearing near them respectively
Being dynamically connected, described butterfly plate both sides are provided with the first sealing ring at valve body sealing surface, and described regulation pressing plate has two, difference position
In butterfly plate both sides, described regulation pressing plate is provided with regulation screw hole, regulation pressing plate is provided through regulation screw hole and butterfly
The regulation screw that plate connects, described regulation screw hole is provided with the second sealing ring, original state at the nut of regulation screw
Lower regulation pressing plate can contact with the first sealing ring and the second sealing ring surface and regulate pressing plate and butterfly plate surface under original state
Have at regular intervals, butterfly plate surface to be provided with away from the end of the first sealing ring near regulation pressing plate and be positioned at regulation pressing plate and butterfly
The 3rd sealing ring between plate, the first sealing ring and the 3rd sealing ring have certain elasticity, adjust when regulating pressing plate and being under pressure
Joint pressing plate can contact with butterfly plate surface, regulate pressing plate stretch out to valve body sealing surface direction elasticity when contacting with butterfly plate surface thus
Coordinate with valve body sealing surface closely and regulate and sealed by the first sealing ring, the second sealing ring and the 3rd between pressing plate and butterfly plate
Circle seals, and butterfly plate central authorities are provided with positioning spigot, is positioned on the butterfly plate at upper valve shaft and lower valve shaft of the positioning spigot both sides and divides
It is not provided with the upper valve shaft of closure and the end cap of lower valve shaft one end, the side of the butterfly plate relative with being provided with end cover side is provided with connection spiral shell
Nail, the radial direction of described upper valve shaft and lower valve shaft offers keyway, and the butterfly plate of the radial direction side being positioned at valve shaft and lower valve shaft sets
Being equipped with lock-screw, one end of described lock-screw penetrates butterfly plate and is located close to connect at valve shaft or lower valve shaft and in its end
Flat key, described flat key is had to be arranged in keyway.
As further improvement of the utility model, described butterfly plate is provided with trim ring and the first pad at attachment screw
Sheet, the side of described first pad contacts opposite side with butterfly plate and contacts with trim ring, and described trim ring connects with the nut of attachment screw
Touching, described butterfly plate is provided with the second pad that two opposite sides contact with end cap and butterfly plate respectively at end cap.
The beneficial effects of the utility model are: using composite bearing to support valve shaft, butterfly plate uses flat key to be connected biography with valve shaft
Dynamic, transmission moment of torsion is big and readily accessible maintenance, and the first sealing ring contacts with wider valve body sealing surface, can be effective during butterfly plate keying
Reducing the moment of torsion of valve, extend valve service life simultaneously, regulation pressing plate is capable of reversely the sealing of valve, prevents butterfly plate from closing
Lost efficacy at pressure medium lower seal when closing.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is that this utility model the first sealing ring coordinates schematic diagram with wider valve body sealing surface.
Fig. 3 is the schematic diagram being connected transmission between butterfly plate with valve shaft.
Fig. 4 realizes valve for regulation pressing plate and reversely seals schematic diagram.
Shown in figure: 1 composite bearing, valve shaft on 2,3 valve bodies, 4 valve body sealing surfaces, 5 first sealing rings, 6 regulation pressing plates, 7
Butterfly plate, 8 flat keys, 9 lower valve shafts, 10 trim rings, 11 first pads, 12 second pads, 13 end caps, 14 lock-screws, 15 second seal
Circle, 16 the 3rd sealing rings, 17 regulation screws.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described further.
Embodiment: ensureing the high-performance butterfly valve of double containment, including valve body 3, butterfly plate 7 and valve shaft, valve shaft is divided into valve shaft 2 He
Lower valve shaft 9, it also include composite bearing 1, regulation pressing plate 6, described composite bearing be respectively arranged at valve body at upper valve shaft and
Valve body is at lower valve shaft, and described upper valve shaft and lower valve shaft are flexibly connected with the composite bearing near them respectively, described butterfly plate
Both sides are provided with the first sealing ring 5 at valve body sealing surface, and described regulation pressing plate has two, lays respectively at butterfly plate both sides, institute
State and on regulation pressing plate, be provided with regulation screw hole, regulation pressing plate is provided through the regulation spiral shell that regulation screw hole is connected with butterfly plate
Nail 17, described regulation screw hole is provided with the second sealing ring 15 at the nut of regulation screw, regulates pressing plate under original state
Can contact with the first sealing ring and the second sealing ring surface and regulate under original state pressing plate and butterfly plate surface have certain between
The be provided with between regulation pressing plate and butterfly plate away from the end of the first sealing ring near regulation pressing plate away from, butterfly plate surface
Three sealing rings 16, the first sealing ring and the 3rd sealing ring have certain elasticity, regulate pressing plate energy when regulating pressing plate and being under pressure
Enough contact with butterfly plate surface, stretch out to valve body sealing surface direction elasticity when regulation pressing plate contacts with butterfly plate surface thus close and
Valve body sealing surface 4 coordinates and regulates by the first sealing ring, the second sealing ring and the sealing of the 3rd sealing ring between pressing plate and butterfly plate,
Butterfly plate central authorities are provided with positioning spigot, are positioned on the butterfly plate at upper valve shaft and lower valve shaft of the positioning spigot both sides and are respectively equipped with envelope
Block the end cap 13 of valve shaft and lower valve shaft one end, the side of the butterfly plate relative with being provided with end cover side is provided with attachment screw, institute
The radial direction stating valve shaft and lower valve shaft offers keyway, and the butterfly plate of the radial direction side being positioned at valve shaft and lower valve shaft is provided with lock
Tight screw 14, one end of described lock-screw penetrate butterfly plate be located close at valve shaft or lower valve shaft and in its end connect have flat
Key 8, described flat key is arranged in keyway.Described butterfly plate is provided with trim ring 10 and the first pad 11 at attachment screw, described
The side of the first pad contacts opposite side with butterfly plate and contacts with trim ring, and described trim ring contacts with the nut of attachment screw, described
Butterfly plate is provided with the second pad 12 that two opposite sides contact with end cap and butterfly plate respectively at end cap.
In this utility model, valve body sealing surface 4 is wider, and there is rounding on valve body sealing surface both sides, the first sealing ring 5 side
Coordinate with valve body sealing surface 4, opposite side is conditioned pressing plate 6 and butterfly plate 7 surrounds, matching part is preferably circular arc (such first
It is easier to during sealing ring pressurized coordinate with valve body sealing surface).Flat key 8 is used to be connected, transmit moment of torsion between upper valve shaft 2 and butterfly plate 7
Greatly, holding screw 14 is set and makes transmission more steadily (being preferably provided two holding screws), and be easy to upper valve shaft 2 and butterfly plate 7 it
Between dismounting, the connection between lower valve shaft 9 and butterfly plate 7 is also such.In this utility model, at described regulation screw hole near adjusting
Being provided with the second sealing ring 15 at the nut of joint screw, butterfly plate surface sets away from the end of the first sealing ring near regulation pressing plate
The 3rd sealing ring 16(being equipped with between regulation pressing plate and butterfly plate i.e. regulates and arranges the at pressing plate 6 and the Internal hole positioning of butterfly plate 7
Three sealing rings 16), the material that the first sealing ring, the second sealing ring and the 3rd sealing ring preferably both have certain elasticity, such as seal
Matter is rubber, the second sealing ring and the 3rd sealing ring preferably with O-ring seals, the first sealing ring, the second sealing ring after stress
With the 3rd sealing ring can crimp, due to the first sealing ring 5 be conditioned pressing plate 6 respectively, butterfly plate 7 surrounds, therefore first seal
Circle 5 can only prevent valve after the extruding of valve body sealing surface 4 direction and valve seal, the second sealing ring and the 3rd sealing ring are squeezed
Axle 2 and butterfly plate 7 contact surface have medium to enter to produce corrosion, valve shaft and one end of lower valve shaft in end cap seal, prevent medium from entering.
This utility model use time, butterfly plate 7 in opening-closing process rotational trajectory as shown in phantom in Figure 2, in opening-closing process
First sealing ring 5 is smooth entrance or disengages valve body sealing surface 4, there is not jam, sliding friction system during opening-closing process
Number is relatively low, can effectively reduce valve opening and closing moment of torsion, simultaneously prolongation sealing ring service life.After butterfly plate is closed, if regulation pressure
Plate 6 is under pressure, the second sealing ring and the 3rd sealing ring be squeezed after sealing against leakage, act on regulation pressing plate 6 on power
Passing to the first sealing ring 5, the first sealing ring 5 is to the extruding of valve body sealing surface 4 direction thus adds sealing ring 5 and valve seal
Sealed increscence amount between face 4, it is ensured that reversely seal, pressure more high sealing effect is the best.
In addition this utility model can go out to arrange trim ring 10 and the first pad 11 near attachment screw, sets at end cap 13
Put the second pad 12 so that combine and end cap 13 and the second pad 12 form combination at flat key two ends trim ring 10 and the first pad 11
Seal, sealing property more preferable.
Those skilled in the art, it is to be understood that protection scheme of the present utility model is not limited only to the above embodiments, also may be used
To carry out various permutation and combination and conversion on the basis of above-described embodiment, on the premise of this utility model spirit,
The various conversion carrying out this utility model all fall within protection domain of the present utility model.
Claims (2)
1. ensureing the high-performance butterfly valve of double containment, including valve body, butterfly plate and valve shaft, valve shaft is divided into valve shaft and lower valve shaft, and it is special
Levying and be that it also includes composite bearing, regulation pressing plate, described composite bearing is respectively arranged at valve body at upper valve shaft and valve body
At lower valve shaft, described upper valve shaft and lower valve shaft are flexibly connected with the composite bearing near them respectively, described butterfly plate both sides
Being provided with the first sealing ring at valve body sealing surface, described regulation pressing plate has two, lays respectively at butterfly plate both sides, described regulation
It is provided with regulation screw hole on pressing plate, regulation pressing plate is provided through the regulation screw that regulation screw hole is connected with butterfly plate, institute
Stating regulation screw hole and be provided with the second sealing ring at the nut of regulation screw, regulating pressing plate under original state can be with first
Sealing ring and the second sealing ring surface contact and regulate under original state pressing plate and have at regular intervals, butterfly plate surface with butterfly plate surface
It is provided with the 3rd sealing ring between regulation pressing plate and butterfly plate near regulating the pressing plate end away from the first sealing ring, the
One sealing ring and the 3rd sealing ring have certain elasticity, when regulating pressing plate and being under pressure, regulation pressing plate can connect with butterfly plate surface
Touch, stretch out to valve body sealing surface direction elasticity when regulation pressing plate contacts with butterfly plate surface thus coordinate with valve body sealing surface closely
And sealed by the first sealing ring, the second sealing ring and the 3rd sealing ring between regulation pressing plate and butterfly plate, butterfly plate central authorities are provided with
Positioning spigot, is positioned on the butterfly plate at upper valve shaft and lower valve shaft of the positioning spigot both sides and is respectively equipped with the upper valve shaft of closure and lower valve
The end cap of axle one end, is provided with attachment screw, described upper valve shaft and lower valve shaft in the side of the butterfly plate relative with being provided with end cover side
Radial direction offer keyway, the butterfly plate of the radial direction side being positioned at valve shaft and lower valve shaft is provided with lock-screw, described locking
One end of screw penetrates butterfly plate and is located close at valve shaft or lower valve shaft and in its end connect have flat key, described flat key to be arranged on
In keyway.
The high-performance butterfly valve of guarantee double containment the most according to claim 1, it is characterised in that described butterfly plate is near connecting spiral shell
Being provided with trim ring and the first pad at nail, the side of described first pad contacts opposite side with butterfly plate and contacts with trim ring, described
Trim ring contacts with the nut of attachment screw, and described butterfly plate is provided with two opposite sides at end cap and contacts with end cap and butterfly plate respectively
The second pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620692638.0U CN205780930U (en) | 2016-07-05 | 2016-07-05 | Ensure the high-performance butterfly valve of double containment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620692638.0U CN205780930U (en) | 2016-07-05 | 2016-07-05 | Ensure the high-performance butterfly valve of double containment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780930U true CN205780930U (en) | 2016-12-07 |
Family
ID=58125824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620692638.0U Expired - Fee Related CN205780930U (en) | 2016-07-05 | 2016-07-05 | Ensure the high-performance butterfly valve of double containment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051178A (en) * | 2016-07-05 | 2016-10-26 | 英诺威阀业有限公司 | High-performance butterfly valve capable of ensuring double seal |
-
2016
- 2016-07-05 CN CN201620692638.0U patent/CN205780930U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051178A (en) * | 2016-07-05 | 2016-10-26 | 英诺威阀业有限公司 | High-performance butterfly valve capable of ensuring double seal |
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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: 20161207 |