CN205479389U - Top -mounted butterfly valve - Google Patents
Top -mounted butterfly valve Download PDFInfo
- Publication number
- CN205479389U CN205479389U CN201620283689.8U CN201620283689U CN205479389U CN 205479389 U CN205479389 U CN 205479389U CN 201620283689 U CN201620283689 U CN 201620283689U CN 205479389 U CN205479389 U CN 205479389U
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- valve
- valve body
- choked flow
- valve rod
- lower cover
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Abstract
The utility model relates to a top -mounted butterfly valve, which comprises the following components: a valve body, a valve cove, the lower cover, the valve rod, butterfly plate and turbine case, valve gap and lower cover set up in the upper and lower both ends of valve body respectively and are used for installing the rotatable valve pole, the part that the valve rod is located the valve body is used for installing the runner of butterfly plate in order to seal or to open the valve body, the turbine case sets up and be used for adjusting valve stem rotation angle above the valve gap, a plurality of choked flow groove has been set gradually along the axial on the corresponding outer peripheral face of valve rod and valve gap, this choked flow groove include the relative guide face that sets up with the valve gap and with the face that blocks of the perpendicular setting of valve rod, the guide face is close to to the contour of valve rod along with the direction of keeping away from the valve body gradually, block that the face is located the tip that the valve body was kept away from to guide face, be provided with the sealing member between choked flow groove and the valve gap. When the scheme is adopted, the utility model provides a top -mounted butterfly valve that sealing performance is good.
Description
Technical field
This utility model relates to a kind of valve, is specifically related to dress formula butterfly valve in one.
Background technology
Butterfly valve is again flap valve, is the regulation valve of a kind of simple in construction, can be used for low pressure pipeline and is situated between
The butterfly valve of the on-off control of matter refers to that closure member is disk, around valve shaft rotate reach open with
A kind of valve closed, valve can be used for controlling sky gas and water, steam, various Korrosionsmedium,
The flowing of all kinds fluids such as mud, oil product, liquid metal and radiating medium.At pipeline
On act primarily as cut-out and throttling action.Butterfly valve opening and closing element is a discoidal butterfly plate, at valve body
The interior axis around himself rotates, thus reaches to open and close or the purpose of regulation.
Traditional upper dress formula butterfly valve includes valve body, valve gap, lower cover, valve rod, butterfly plate and turbine box,
Valve gap and lower cover are respectively arranged at the upper and lower two ends of valve body and for installing rotatable valve rod, valve rod
It is positioned at the part of valve body for installing butterfly plate to close or to open the runner of valve body, turbine
Case is arranged at for the regulating valve stem anglec of rotation above valve gap, due to the stream of its major control fluid
Dynamic, so the quality of its sealing directly determines its using effect, general butterfly valve compares emphasis
Sealing between dish plate and valve body, and ignore the sealing between valve gap and valve rod, particularly have
When having certain corrosive liquid, result in dust along with the gap entrance between valve gap and valve rod
In valve body or fluid between gap to valve body outward leakage, bring many impacts to daily production.
Summary of the invention
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of sealing
The upper dress formula butterfly valve that performance is good.
For achieving the above object, this utility model provides following technical scheme: include valve body,
Valve gap, lower cover, valve rod, butterfly plate and turbine box, described valve gap and lower cover are respectively arranged at valve
The upper and lower two ends of body are also used for installing rotatable valve rod, and described valve rod is positioned at the part of valve body
For installing butterfly plate to close or the runner of opening in valve body, described turbine box is arranged at valve
The side of covering is for the regulating valve stem anglec of rotation, it is characterised in that: described valve rod is relative with valve gap
Being disposed with several choked flow grooves on the outer peripheral face answered vertically, this choked flow groove includes and valve gap
The guide surface being oppositely arranged and blocking surface vertically disposed with valve rod, described guide surface with away from
The direction of valve body is gradually close to the contour of valve rod, and described blocking surface is positioned at guide surface away from valve
The end of body, is provided with sealing member between described choked flow groove and valve gap.
By use technique scheme, group chute guide surface by fluid to group chute drain,
Fluid is gathered in the corner of guide surface and blocking surface, can be back to valve after gathering to a certain degree
Body, it is to avoid fluid is revealed between valve gap and valve rod, arranges sealing member and is then further ensured that fluid
Will not reveal.
This utility model is further arranged to: described sealing member is annular construction member, and described is close
Sealing cross section is suitable with choked flow slot cross-section shape, and described sealing member is towards the end face of choked flow groove
Wedge-like engagement is constituted with guide surface.
By using technique scheme, sealing member and valve rod make the outer peripheral face of valve body be complete
Cylindrical, it is ensured that its stability rotated, and sealing member and choked flow groove wedge-like engagement make sealing member
Installation process coordinates with valve rod increasingly tighter, can't come off when mounted.
This utility model is further arranged to: described choked flow groove be positioned on guide surface be provided with blind
Hole, is provided with the back-moving spring resetted laterally by sealing member, described blocking surface in this blind hole
On be provided with sealing member be limited in the limited block in choked flow groove.
By using technique scheme, back-moving spring strengthens the sealing between sealing member and valve gap
Coordinating, limited block then avoids disengagement of seal member valve rod.
This utility model is further arranged to: described lower cover upper surface offsets with valve rod lower end
Join, this lower cover upper surface is provided with the poly-sap cavity inserting the liquid into and carrying out to assemble, described
Stem outer circumference surface cover is provided with exterior seal ring, and this exterior seal ring upper end offsets with valve body, lower end with
Lower cover offsets.
By using technique scheme, compression exterior seal ring, in lower cover, makes the fluid can only be to valve
Flow inside bar, until in poly-sap cavity, also by valve body while the sealing of this poly-sap cavity auxiliary valve body
Inside carry out pressure release, too increase security performance.
This utility model is further arranged to: described valve rod lower surface is provided with round platform, this circle
The small end of platform, towards lower cover, is provided with determine suitable with truncated conical shape in described poly-sap cavity
Position groove.
By using technique scheme, by round platform and lower cover rotational positioning, it is possible to by round platform
Inclined-plane, as guiding, increases the convenience installed.
With detailed description of the invention, this utility model is further described below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model detailed description of the invention；
Fig. 2 is the enlarged drawing of A in Fig. 1；
Fig. 3 is the enlarged drawing of B in Fig. 1.
Detailed description of the invention
As shown in Figure 1-Figure 3, the utility model discloses dress formula butterfly valve in one, including
Valve body 1, valve gap 2, lower cover 3, valve rod 4, butterfly plate 5 and turbine box 6, valve gap 2 and lower cover
3 are respectively arranged at valve body about 1 two ends and for installing rotatable valve rod 4, valve rod 4
Part in valve body 1 with closing or opens the runner in valve body 1 for installing butterfly plate 5,
Turbine box 6 is arranged at above valve gap 2 for regulating valve stem 4 anglec of rotation, valve rod 4 and valve gap
Several choked flow grooves 41 it are disposed with vertically, this choked flow groove bag on 2 corresponding outer peripheral faces
Include the guide surface 411 being oppositely arranged with valve gap 2 and blocking surface vertically disposed with valve rod 4 412,
Guide surface 411 is gradually close to the contour of valve rod 4 with the direction away from valve body 1, blocking surface
412 are positioned at the guide surface 411 end away from valve body 1, set between choked flow groove 41 and valve gap 2
Being equipped with sealing member 7, fluid is assembled by the guide surface 411 of group chute to group chute drain, fluid
In guide surface 411 and the corner of blocking surface 412, after gathering to a certain degree, valve can be back to
Body 1, it is to avoid fluid is revealed between valve gap 2 and valve rod 4, arranges sealing member 7 further
Ensure that fluid will not be revealed.
Sealing member 7 is annular construction member, and sealing member 7 cross section is fitted mutually with choked flow groove 41 cross sectional shape
Joining, sealing member 7 constitutes wedge-like engagement towards the end face of choked flow groove 41 with guide surface 411, close
Sealing 7 and valve rod 4 make the outer peripheral face of valve body 1 be complete cylinder, it is ensured that it is steady that it rotates
Qualitative, and sealing member 7 and choked flow groove 41 wedge-like engagement make sealing member 7 in installation process with
Valve rod 4 coordinates increasingly tighter, can't come off when mounted.
Choked flow groove 41 is positioned on guide surface 411 and is provided with blind hole 413, sets in this blind hole 413
Be equipped with the back-moving spring 414 resetted laterally by sealing member 7, blocking surface 412 is provided with by
Sealing member 7 is limited in the limited block 415 in choked flow groove, and back-moving spring strengthens sealing member 7 and valve
Sealing between lid 2 coordinates, and limited block then avoids sealing member 7 to depart from valve rod 4.
Lower cover 3 upper surface offsets with valve rod 4 lower end and joins, and this lower cover 3 upper surface is provided with
Inserting the liquid into and carry out the poly-sap cavity 31 assembled, valve rod 4 outer peripheral face set is provided with external seal
Circle 43, this exterior seal ring 43 upper end offsets with valve body 1, and lower end offsets with lower cover 3, compression
Exterior seal ring, in lower cover 3, makes fluid can only flow inside valve rod 4, until poly-sap cavity 31
In, this poly-sap cavity 31 auxiliary valve body 1 also will carry out pressure release, also while sealing in valve body 1
Add security performance.
Valve rod 4 lower surface is provided with round platform 42, the small end of this round platform 42 towards lower cover 3,
The locating slot 311 suitable with round platform 42 shape it is provided with, by round platform 42 in poly-sap cavity 31
With lower cover 3 rotational positioning, it is possible to using the inclined-plane of round platform 42 as guiding, increase and install just
Victory.
Claims (5)
1. a upper dress formula butterfly valve, including valve body, valve gap, lower cover, valve rod, butterfly plate and whirlpool
Roller box, described valve gap and lower cover are respectively arranged at upper and lower two ends of valve body rotatable for installing
Valve rod, described valve rod is positioned at the part of valve body for installing butterfly plate to close or to open
Runner in valve body, described turbine box is arranged at above valve gap for the regulating valve stem anglec of rotation
Degree, it is characterised in that: set the most successively on the outer peripheral face that described valve rod is corresponding with valve gap
Being equipped with several choked flow grooves, this choked flow groove includes guide surface and and the valve rod being oppositely arranged with valve gap
Vertically disposed blocking surface, described guide surface with the direction away from valve body gradually to the week of valve rod
Line is close, and described blocking surface is positioned at the guide surface end away from valve body, described choked flow groove with
Sealing member it is provided with between valve gap.
Upper dress formula butterfly valve the most according to claim 1, it is characterised in that: described is close
Sealing is annular construction member, and described sealing member cross section is suitable with choked flow slot cross-section shape, described
Sealing member constitute wedge-like engagement towards end face and the guide surface of choked flow groove.
Upper dress formula butterfly valve the most according to claim 2, it is characterised in that: described resistance
Chute is positioned on guide surface and is provided with blind hole, is provided with and is resetted laterally by sealing member in this blind hole
Back-moving spring, described blocking surface is provided be limited in choked flow groove by sealing member spacing
Block.
4. according to the upper dress formula butterfly valve described in claim 1 or 2 or 3, it is characterised in that:
Described lower cover upper surface offsets with valve rod lower end and joins, and this lower cover upper surface is provided with liquid
Introducing and carry out the poly-sap cavity assembled, described stem outer circumference surface cover is provided with exterior seal ring, should
Exterior seal ring upper end offsets with valve body, and lower end offsets with lower cover.
Upper dress formula butterfly valve the most according to claim 4, it is characterised in that: described valve
Bar lower surface is provided with round platform, and the small end of this round platform, towards lower cover, sets in described poly-sap cavity
It is equipped with the locating slot suitable with truncated conical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620283689.8U CN205479389U (en) | 2016-03-31 | 2016-03-31 | Top -mounted butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620283689.8U CN205479389U (en) | 2016-03-31 | 2016-03-31 | Top -mounted butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479389U true CN205479389U (en) | 2016-08-17 |
Family
ID=56644213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620283689.8U Active CN205479389U (en) | 2016-03-31 | 2016-03-31 | Top -mounted butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205479389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826965A (en) * | 2019-03-21 | 2019-05-31 | 重庆川仪调节阀有限公司 | A kind of valve plate online quick-changing type assembly method of butterfly valve and butterfly valve |
-
2016
- 2016-03-31 CN CN201620283689.8U patent/CN205479389U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826965A (en) * | 2019-03-21 | 2019-05-31 | 重庆川仪调节阀有限公司 | A kind of valve plate online quick-changing type assembly method of butterfly valve and butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |