CN209164701U - Bidirectional metallic seal butterfly valve - Google Patents
Bidirectional metallic seal butterfly valve Download PDFInfo
- Publication number
- CN209164701U CN209164701U CN201822053681.4U CN201822053681U CN209164701U CN 209164701 U CN209164701 U CN 209164701U CN 201822053681 U CN201822053681 U CN 201822053681U CN 209164701 U CN209164701 U CN 209164701U
- Authority
- CN
- China
- Prior art keywords
- butterfly valve
- dish plate
- shaft
- valve body
- sealing shroud
- 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
Links
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 230000000694 effects Effects 0.000 description 2
- 244000309464 bull Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Abstract
The utility model provides bidirectional metallic seal butterfly valve, the effective solution ineffective problem of existing dish valve two way seal；Its solve technical solution be, including cylindric and horizontal positioned butterfly valve body, valve body has shaft that is vertical and can actively rotating, there is the dish plate coaxial with valve body on the left of shaft, dish plate is rotated together with shaft, has annular space between dish plate and hair body, there is the ring-shaped sealing sleeve fixed with valve body in annular space, the left and right ends of sealing shroud offer the annular groove coaxial with sealing shroud, and two annular grooves do not penetrate through；The utility model clever structure makes it constitute sealing cooperation under the action of the impact force of different directions, realizes two way seal, it is ensured that the phenomenon that butterfly valve is not in interior leakage, strong applicability are easy to spread.
Description
Technical field
The utility model relates to technical field of valve manufacturing, especially bidirectional metallic seal butterfly valve.
Background technique
Butterfly valve is to open, close and adjust fluid channel with disc type opening and closing element i.e. 90 ° of butterfly plate reciprocating rotating or so
A kind of valve.Existing butterfly valve seal circle is fixed on butterfly plate by pressing ring circle, and valve seat and the equal Precision Machining of sealing ring are tapered.
Operating mechanism band ovable valve stem, makes sealing ring act as 90 ° of rotary motions with butterfly plate one to realize valve seal.But this structure
Butterfly valve immobilized due to the position of valve seat, just determine that pipeline medium can only be from the i.e. cone-shaped seal structure in the side of valve
Bottom surface, which is pressed through external force and medium power, is pressed on sealing ring on valve seat, realizes sealing；If otherwise medium is from cone seal knot
The top of structure presses, and huge medium power can make butterfly plate generate micro deformation, reduces sealing ring and valve base sealing power, very
To gap is generated on the contact surface, lead to valves leakage.That is the butterfly valve of this structure has directionality, and medium can only be from
The designated ends of valve flow into, and sealing effect is undesirable if medium reversely flows into.
Utility model content
For above situation, for the defect for overcoming the prior art, the utility model provides bidirectional metallic seal butterfly valve, has
Effect solves the problems, such as that existing dish valve two way seal is ineffective.
Its technical solution solved is, including cylindric and horizontal positioned butterfly valve body, valve body has vertical and energy actively
There is the dish plate coaxial with valve body in the shaft of rotation, shaft left side, and dish plate is rotated together with shaft, have annular between dish plate and hair body
It is spaced, has the ring-shaped sealing sleeve fixed with valve body in annular space, the left and right ends of sealing shroud offer coaxial with sealing shroud
Annular groove, two annular grooves do not penetrate through.
The utility model clever structure makes it constitute sealing cooperation under the action of the impact force of different directions, realizes double
To sealing, it is ensured that the phenomenon that butterfly valve is not in interior leakage, strong applicability are easy to spread.
Detailed description of the invention
Fig. 1 is the utility model front sectional view.
Fig. 2 is the utility model overhead sectional view.
Fig. 3 is the structure chart of sealing shroud, annular groove in the utility model.
Specific embodiment
Further description is made to specific embodiment of the present utility model below in conjunction with attached drawing.
It is provided by Fig. 1 to Fig. 3, the utility model includes cylindric and horizontal positioned butterfly valve body 1, and valve body 1 has vertically
And the shaft 2 that can actively rotate, there is the dish plate 3 coaxial with valve body 1 on the left of shaft 2, dish plate 3 is rotated together with shaft 2, dish plate 3
There is annular space between hair body, there is the ring-shaped sealing sleeve 4 fixed with valve body 1 in annular space, the left and right ends of sealing shroud 4 are equal
The annular groove 5 coaxial with sealing shroud 4 is offered, two annular grooves 5 do not penetrate through.
In order to realize sealing, the dish plate 3 is in a circular table shape, and 3 left end diameter of dish plate is less than right end diameter, dish plate 3
There is sealing ring on outer edge surface.
For better seal, the diameter of the middle section of 4 inner headed face of sealing shroud is less than the diameter at both ends.
In order to realize that two way seal can be compressed to dish plate 3 in the different situation of left and right sides pressure, wherein left side
The diameter of annular groove 5 is less than the diameter of the annular groove 5 on right side, and two annular grooves 5 have lap in the vertical direction
So that the longitudinal section of sealing shroud 4 is in " Z " shape.
In order to realize the active rotation of bull stick, 2 upper end of shaft is through valve body 1 and is placed in 1 upside of valve body, and rotation turns
Axis 2 can make dish plate 3 as shaft 2 rotates together and then realizes turning on or off for control butterfly valve.
It is worth noting that, the sealing shroud 4 can use vulcanie, no matter which side pressure it is big when, pressure can make
Annular groove 5 opens, and then makes to fit closely between the inside of sealing shroud 4 and the periphery of dish plate 3, final to realize sealing；This
Utility model avoids the use under highly corrosive, high acid-base property, hot environment as far as possible.
Assuming that the axle center of dish plate 3 and the axis perpendicular of valve body 1, butterfly valve is opened at this time under original state, when needing to close,
Rotating shaft 2, the rotation of shaft 2 drive dish plate 3 to rotate, and butterfly plate is gradually to sealing shroud 4, when periphery and the sealing shroud 4 of dish plate 3
When medial surface is in close contact, butterfly valve is closed, if the left and right sides of dish plate 3 is there are pressure difference at this time, pressure can make big one of pressure
The annular groove 5 of side struts, and compresses the inside of sealing ring towards 3 periphery of dish plate, realizes sealing.
The utility model clever structure makes it constitute sealing cooperation under the action of the impact force of different directions, realizes double
To sealing, it is ensured that the phenomenon that butterfly valve is not in interior leakage, strong applicability are easy to spread.
Claims (5)
1. bidirectional metallic seal butterfly valve, including cylindric and horizontal positioned butterfly valve body (1), valve body (1) has vertical and can lead
There is the dish plate (3) coaxial with valve body (1) in the dynamic shaft (2) of turn, shaft (2) left side, and dish plate (3) is rotated together with shaft (2),
There is annular space between dish plate (3) and hair body, which is characterized in that have the annular fixed with valve body (1) in the annular space
Sealing shroud (4), the left and right ends of sealing shroud (4) offer the annular groove (5) coaxial with sealing shroud (4), and two annulars are recessed
Slot (5) does not penetrate through.
2. bidirectional metallic seal butterfly valve according to claim 1, which is characterized in that the dish plate (3) is in a circular table shape, and
Dish plate (3) left end diameter is less than right end diameter, has sealing ring on the outer edge surface of dish plate (3).
3. bidirectional metallic seal butterfly valve according to claim 1, which is characterized in that described sealing shroud (4) inner headed face
The diameter of middle section is less than the diameter at both ends.
4. bidirectional metallic seal butterfly valve according to claim 1, which is characterized in that the wherein annular groove (5) in left side
Diameter is less than the diameter of the annular groove (5) on right side, and two annular grooves (5) have lap to seal in the vertical direction
The longitudinal section for covering (4) is in " Z " shape.
5. bidirectional metallic seal butterfly valve according to claim 1, which is characterized in that valve is run through in shaft (2) upper end
It body (1) and is placed on the upside of valve body (1), rotating shaft (2) can make dish plate (3) as shaft (2) rotates together and then realizes and controls
Butterfly valve turns on or off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822053681.4U CN209164701U (en) | 2018-12-07 | 2018-12-07 | Bidirectional metallic seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822053681.4U CN209164701U (en) | 2018-12-07 | 2018-12-07 | Bidirectional metallic seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209164701U true CN209164701U (en) | 2019-07-26 |
Family
ID=67342851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822053681.4U Expired - Fee Related CN209164701U (en) | 2018-12-07 | 2018-12-07 | Bidirectional metallic seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209164701U (en) |
-
2018
- 2018-12-07 CN CN201822053681.4U patent/CN209164701U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |