CN206145152U - Multi -level two -way butterfly valve sealed firmly - Google Patents
Multi -level two -way butterfly valve sealed firmly Download PDFInfo
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- CN206145152U CN206145152U CN201621207713.6U CN201621207713U CN206145152U CN 206145152 U CN206145152 U CN 206145152U CN 201621207713 U CN201621207713 U CN 201621207713U CN 206145152 U CN206145152 U CN 206145152U
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Abstract
The utility model discloses a multi -level two -way butterfly valve sealed firmly, including valve body, valve plate, be equipped with a class chamber on the valve body, wear to be equipped with the valve shaft on the valve plate, the upper end of valve shaft is connected through the upper end of last axle sleeve with the valve body, the lower extreme of valve shaft passes through shaft liner connection in the lower extreme of valve body down, valve body upper portion is equipped with the support, be connected with transmission worm gear mechanism on the support, the upper end of valve shaft is connected with transmission worm gear mechanism, the outer wall of valve plate is connected with the sealing washer through the clamp plate, it is connected with movable disk seat through O type circle to flow the intracavity, when the valve plate with flow the chamber when being the closed condition, the sealing washer meets with the activity disk seat, during the action, transmission worm gear mechanism drives the valve shaft and rotates, and then drives the valve plate rotation, realizes flowing opening and closing of chamber. The utility model discloses simple structure, good, the long service life of leakproofness.
Description
Technical field
The utility model is related to valve field, more particularly to a kind of multi-level two-way hard seal butterfly valve.
Background technology
At present butterfly valve is very extensive in the application of all trades and professions, it is desirable to more and more higher, realizes two way seal and very stiff and demanding
Sealing, existing butterfly valve does not reach the zero leakage of reverse sealing, has perplexed the pipeliner author of some industries.
Butterfly valve refers to that valve plate rotates to reach a kind of valve of open and close around valve rod, cut-out is acted primarily as on pipeline and is saved
The effect of stream.Two kinds of seal forms of the flexible soft seal of butterfly valve and metal hard-sealing, the valve of metal hard-sealing is typically close than soft
The life of valve of envelope is long, can the higher working environment of Applicable temperature, but sealing property not as the valve of soft seal it is good.
Utility model content
The purpose of this utility model is to overcome above-mentioned weak point of the prior art and provide a kind of simple structure, reality
Multi-level two-way hard seal butterfly valve.
The utility model is realized in the following way：
A kind of multi-level two-way hard seal butterfly valve, it is characterised in that：Including valve body 14, valve plate 12, set on the valve body 14
There is stream chamber 141；Valve shaft 11 is equipped with the valve plate 12；The valve plate 12 is located in stream chamber 141；The upper end of the valve shaft 11 leads to
Cross Upper shaft sleeve 15 to be connected with the upper end of valve body 14；The lower end of the valve shaft 11 is connected to the lower end of valve body 14 by Lower shaft sleeve 4；
The valve shaft 11 is rotatable relative to valve body 14；The top of the valve body 14 is provided with support 21；Transmission is connected with the support 21
Worm gear mechanism 25；The upper end of the valve shaft 11 is connected with transmission Worm gear mechanism 25；
The outer wall of the valve plate 12 is connected with sealing ring 7 by pressing plate 9；It is connected with by O-ring 5 in the stream chamber 141
Movable valve seat 6；When valve plate 12 is in closed mode with stream chamber 141, sealing ring 7 connects with movable valve seat 6；During action, snail is driven
Wheel mechanism 25 drives valve shaft 11 to rotate, and then drives valve plate 12 to rotate, and realizes the open and close in stream chamber 141.
The movable valve seat 6 is provided with valve seat inclined-plane 61, and the sealing ring 7 connects with valve seat inclined-plane 61；The valve seat is oblique
Face 61 is angularly offset from angle α with veritcal linearity；Formed between the center line of the sealing ring 7 and the horizontal line of valve shaft 11 axially partially
The heart is away from E；Radial disbalance is formed between the center line of the valve plate 12 and the vertical center line of valve shaft 11 away from e.
Packing seat 16 and gland 18 are arranged with the valve shaft 11, described filler gland 18 is located at the upper of Packing seat 16
Side, is provided with filler 17 between described filler gland 18 and Packing seat 16.
The lower end of the valve shaft 11 is connected on valve body 14 by divided ring 3；The lower end of the valve body 14 is by lower sealing
Circle 2 is connected with bottom 1；The bottom 1 is located at the lower section of valve shaft 11.
The beneficial effects of the utility model are：Simple structure, easy to operate, long service life, sealing property reliability.
Description of the drawings
Fig. 1 the utility model structural front views；
Fig. 2 the utility model structure top views.
Specific embodiment
In conjunction with accompanying drawing in detail, the utility model specific embodiment is described in detail：
As shown in figure 1, a kind of multi-level two-way hard seal butterfly valve, including valve body 14, valve plate 12, valve body 14 is provided with stream chamber
141；Valve shaft 11 is equipped with valve plate 12；Valve plate 12 is located in stream chamber 141；The upper end of valve shaft 11 is by Upper shaft sleeve 15 and valve body 14
Upper end be connected；The lower end of valve shaft 11 is connected to the lower end of valve body 14 by Lower shaft sleeve 4；Valve shaft 11 can turn relative to valve body 14
It is dynamic；The top of valve body 14 is provided with support 21；Transmission Worm gear mechanism 25 is connected with support 21；The upper end of valve shaft 11 and transmission worm gear
Mechanism 25 is connected；The outer wall of valve plate 12 is connected with sealing ring 7 by pressing plate 9；Stream is connected with activity in chamber 141 by O-ring 5
Valve seat 6；When valve plate 12 is in closed mode with stream chamber 141, sealing ring 7 connects with movable valve seat 6；During action, worm gear machine is driven
Structure 25 drives valve shaft 11 to rotate, and then drives valve plate 12 to rotate, and realizes the open and close in stream chamber 141.
As shown in Fig. 2 movable valve seat 6 is provided with valve seat inclined-plane 61, sealing ring 7 connects with valve seat inclined-plane 61；Valve seat inclined-plane
61 are angularly offset from angle α with veritcal linearity；Form axially eccentric away from E between the center line of sealing ring 7 and the horizontal line of valve shaft 11；
Radial disbalance is formed between the center line of valve plate 12 and the vertical center line of valve shaft 11 away from e.
Packing seat 16 and gland 18 are arranged with the utility model valve shaft 11, gland 18 is located at Packing seat 16
Top, is provided with filler 17 between gland 18 and Packing seat 16, increase sealing.
The lower end of the utility model valve shaft 11 is connected on valve body 6 by divided ring 3；The lower end of valve body 14 is by lower sealing
Circle 2 is connected with bottom 1；Bottom 1 is located at the lower section of valve shaft 11.
The utility model using three eccentricity structure be it is axially eccentric away from E, radial disbalance away from e and angle deviating angle α, subtract significantly
The little friction of sealing surface, the axially eccentric form for being together to form eccentric shaft away from e away from E and radial disbalance, valve plate 12 is being closed
When be formed the action of closing tighter and tighter, be conducive to sealing；Radial disbalance away from e play a part of to open again i.e. from, sealing ring 7 with
Sealing surface center and valve body 14 center-biased, one angle [alpha] that valve seat inclined-plane 61 is formed, so as to generate the ellipse of major axis and short axle
Round valve plate 12, the sealing surface rotary motion trace of valve plate 12 forms a wedge angle 1 and θ 2 with the valve seat inclined-plane 61 of movable valve seat 6, makes valve
The sealing surface opposite valve seat inclined-plane 61 of plate 12 gradually goes out to depart from and gradually as compressed, so as to thoroughly eliminate the sealing of valve plate two when valve plate 12 is opened and closed
Mechanical wear and scratch between pair；Movable valve seat 6 be changed to by original fixed form it is movable, in the effect of buffer brake
Under, pressure can give movable valve seat 6 one thrusts, make movable valve seat 6 be close to the sealing surface of valve plate 12, reach reverse sealing
Required seal pressure, it is achieved thereby that the two way seal of valve.
During work, handwheel rotate counterclockwise transmission Worm gear mechanism 25 drives valve shaft 11, the valve plate 12 being fixed on valve shaft 11
Rotate with, make fixed sealing ring 7 on valve plate 12 slowly depart from movable valve seat 6, the big plane of valve plate 12 and water (flow) direction
The i.e. valve that is parallel to each other is open mode；Otherwise make the sealing ring 7 on valve plate 12 be close to the moving valve for being placed on the inner chamber of valve body 14
During seat 6, valve is just closed mode.
Claims (4)
1. a kind of multi-level two-way hard seal butterfly valve, it is characterised in that：Including valve body (14), valve plate (12), the valve body (14)
It is provided with stream chamber (141)；Valve shaft (11) is equipped with the valve plate (12)；The valve plate (12) is in stream chamber (141)；It is described
The upper end of valve shaft (11) is connected by Upper shaft sleeve (15) with the upper end of valve body (14)；The lower end of the valve shaft (11) passes through lower axle
Set (4) is connected to the lower end of valve body (14)；The valve shaft (11) is rotatable relative to valve body (14)；Valve body (14) top sets
There is support (21)；Transmission Worm gear mechanism (25) is connected with the support (21)；The upper end of the valve shaft (11) and transmission snail
Wheel mechanism (25) is connected；
The outer wall of the valve plate (12) is connected with sealing ring (7) by pressing plate (9)；Pass through O-ring (5) in the stream chamber (141)
It is connected with movable valve seat (6)；When valve plate (12) with stream chamber (141) in closed mode when, sealing ring (7) and movable valve seat (6) phase
Connect；During action, transmission Worm gear mechanism (25) drives valve shaft (11) to rotate, and then drives valve plate (12) to rotate, and realizes stream chamber (141)
Open and close.
2. a kind of multi-level two-way hard seal butterfly valve according to claim 1, it is characterised in that：The movable valve seat (6)
Valve seat inclined-plane (61) is provided with, the sealing ring (7) connects with valve seat inclined-plane (61)；The valve seat inclined-plane (61) and veritcal linearity
It is angularly offset from angle (α)；Form axially eccentric away from (E) between the center line of the sealing ring (7) and the horizontal line of valve shaft (11)；
Radial disbalance is formed between the center line of the valve plate (12) and the vertical center line of valve shaft (11) away from (e).
3. a kind of multi-level two-way hard seal butterfly valve according to claim 1, it is characterised in that：Cover on the valve shaft (11)
Packing seat (16) and gland (18) are provided with, described filler gland (18) is positioned at the top of Packing seat (16), described filler pressure
Filler (17) is provided between lid (18) and Packing seat (16).
4. a kind of multi-level two-way hard seal butterfly valve according to claim 1, it is characterised in that：Under the valve shaft (11)
End is connected on valve body (14) by divided ring (3)；The lower end of the valve body (14) is connected with bottom by lower seal (2)
(1)；Lower section of the bottom (1) positioned at valve shaft (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207713.6U CN206145152U (en) | 2016-11-09 | 2016-11-09 | Multi -level two -way butterfly valve sealed firmly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207713.6U CN206145152U (en) | 2016-11-09 | 2016-11-09 | Multi -level two -way butterfly valve sealed firmly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206145152U true CN206145152U (en) | 2017-05-03 |
Family
ID=58624066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621207713.6U Active CN206145152U (en) | 2016-11-09 | 2016-11-09 | Multi -level two -way butterfly valve sealed firmly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206145152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321867A (en) * | 2016-11-09 | 2017-01-11 | 胜利阀门有限公司 | Multilayerbidirectional hard sealing butterfly valve |
-
2016
- 2016-11-09 CN CN201621207713.6U patent/CN206145152U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321867A (en) * | 2016-11-09 | 2017-01-11 | 胜利阀门有限公司 | Multilayerbidirectional hard sealing butterfly valve |
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