CN205859174U - A kind of butterfly valve - Google Patents
A kind of butterfly valve Download PDFInfo
- Publication number
- CN205859174U CN205859174U CN201620818761.2U CN201620818761U CN205859174U CN 205859174 U CN205859174 U CN 205859174U CN 201620818761 U CN201620818761 U CN 201620818761U CN 205859174 U CN205859174 U CN 205859174U
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- CN
- China
- Prior art keywords
- valve
- valve seat
- ring
- seat
- face
- 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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Abstract
nullThe utility model discloses a kind of butterfly valve，Its drip irrigation device is，Including valve body，Passage it is provided with in valve body，The valve seat being made up of pottery detachably it is provided with in passage，Rotate in passage and be provided with valve rod，Valve rod is arranged with valve plate eccentric，Valve rod and valve body eccentric setting，Valve plate is provided with the sealing ring being made up of pottery coordinated with valve seat，The medial surface of valve seat includes first face of cylinder and the first taper seat，Sealing ring is provided with second face of cylinder and the second taper seat coordinated with valve seat，The polytetrafluoroethylsealed sealed ring that can abut it is embedded with sealing ring on valve seat，First face of cylinder and the second inclined plane，The contact area of valve seat and sealing ring can be improved，The sealing property of valve body can be improved，Valve seat is provided with polytetrafluoroethylsealed sealed ring，Polytetrafluoroethylsealed sealed ring can abut with sealing ring，Owing to the material of polytetrafluoroethylsealed sealed ring is soft，Therefore，Together with the sealing ring that pottery is made can be connected to closely with polytetrafluoroethylsealed sealed ring，Improve the sealing effectiveness of valve seat and sealing ring.
Description
Technical field
This utility model relates to a kind of valve, particularly to a kind of butterfly valve.
Background technology
Butterfly valve is again flap valve, is the regulation valve of a kind of simple in construction, simultaneously can be used for the switch of low pressure pipeline medium
Control.Butterfly valve refers to that closure member (flap or butterfly plate) is disk, rotates a kind of valve reaching to open and close around valve shaft,
Cut-out and throttling action is acted primarily as on pipeline.Butterfly valve opening and closing element is a discoidal butterfly plate, around the axle of himself in valve body
Line rotates, thus reaches to open and close or the purpose of regulation.
Existing butterfly valve, although use and cover ceramic layer at body cavity, butterfly plate and valve shaft, install close on butterfly plate
The measures such as seal ring, to strengthen its corrosion resistance and sealing, but at valve shaft with the corrosion resistant seal measure of valve body axis hole junction surface not
Foot, easily makes fluid media (medium) enter its gap, and corrosion valve shaft and axis hole, sealing is poor, and therefore, publication No. is CN203395206U's
Utility model provides a kind of butterfly valve.
But butterfly valve of the prior art, when actually used, be all to use the face of cylinder due to sealing ring and valve seat, seal
Performance is the best；The installation of valve seat is complicated, and later period maintenance is inconvenient；Additionally, impurity and dust in fluid easily remain in close
Between seal and valve seat, sealing ring and valve seat are the highest for service life.
Utility model content
The purpose of this utility model is to provide a kind of butterfly valve, good seal performance, sealing ring and the high life of valve body.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of butterfly valve, including valve
Body, is provided with passage in described valve body, passage includes feed end and discharge end, is detachably provided with and is made up of pottery in described passage
Valve seat, rotate in described passage and be provided with valve rod, the outer circumference surface of described valve rod is fixed with valve plate, described valve plate is provided with
The sealing ring being made up of pottery coordinated with valve seat, the medial surface of described valve seat includes first face of cylinder and the first taper seat,
Described sealing ring is provided with second face of cylinder and the second taper seat coordinated with valve seat, and described valve seat is positioned at the inner circle of valve seat
Be embedded with the polytetrafluoroethylsealed sealed ring that can abut with sealing ring on side face, described valve rod axis relative to valve diameter offset setting and
Near first face of cylinder.
By using technique scheme, valve seat arranges first face of cylinder and the second inclined plane, valve can be improved
Seat and the contact area of sealing ring, and then can improve the sealing property of valve body, arranged valve rod with valve plate eccentric, by valve rod and
Valve body eccentric setting, so will not impact the rotation of valve plate, be provided with polytetrafluoroethylsealed sealed ring on valve seat, arrange polytetrafluoroethylsealed sealed
Ring, polytetrafluoroethylsealed sealed ring can abut with sealing ring, and owing to the material of polytetrafluoroethylsealed sealed ring is soft, therefore, it is close that pottery is made
Seal improves the sealing effectiveness of valve seat and sealing ring together with can being connected to closely with polytetrafluoroethylsealed sealed ring.
This utility model is further arranged to: described valve interior wall is provided with the gasket ring being made up of pottery.
By using technique scheme, by arranging gasket ring on the inwall of valve body, gasket ring can rise with the inwall of valve body
To protective effect, valve body can be avoided to be corroded by fluid, extend the service life of valve body.
This utility model is further arranged to: the outer circumference surface of described valve body is provided with the extension pipe communicated with passage, institute
State the rotation of valve rod two ends to be arranged in extension pipe, outwardly formation bulge loop on the outer circumference surface of described valve rod, described extension pipe
Inwall be provided with the scrobicular ring coordinated with bulge loop.
By using technique scheme, by arranging bulge loop and scrobicular ring, the thickness of scrobicular ring can be slightly larger than bulge loop
Thickness, after installing, bulge loop rotates in scrobicular ring, and bulge loop can form a labyrinth sealing, can avoid ash
Dirt enters in valve body in the gap between valve rod and extension pipe, and simple in construction plays the best dust-proof effect.
This utility model is further arranged to: the side of described valve body is provided with some cannelures.
By using technique scheme, after installing, cannelure coordinates with ring block, can increase valve body
With the contact area of part, and then sealing property and the mounting structure intensity of valve body can be improved.
This utility model is further arranged to: the inwall of described passage is provided with the retainer ring being wholely set with valve seat, institute
State valve seat to removably connect with retainer ring.
By using technique scheme, when producing, can first retainer ring be welded on valve seat, subsequently, then by valve
Seat is installed in retainer ring, by arranging retainer ring, can realize dismounting and the installation of valve seat very easily, not only produce
Convenient, and later period maintenance is the simplest, additionally, arrange retainer ring at valve inner, it is also possible to valve body is played support and makees
With, improve the structural strength of valve body, after installing, retainer ring can also bear the impulsive force from fluid, improves
The installation strength of valve seat body.
This utility model is further arranged to: fixed by location screw between described valve seat and retainer ring.
By using technique scheme, location screw is used to realize fixing, due to screw thread between valve seat and retainer ring
Connect and there is auto-lock function, therefore, there is no need to increase extra fixed structure, simple in construction, install and dismantle very convenient.
This utility model is further arranged to: the face that described retainer ring contacts with valve seat is provided with at least two T-shaped location
Post, described valve seat is provided with the locating slot coordinated with locating dowel.
By using technique scheme, after installing, owing to locating dowel is T-shaped setting, at locating dowel card
After entering in locating slot, the T-shaped head of locating dowel can play fixation on the axis direction of locating dowel, carries out valve seat solid
Fixed, it is achieved fixing between valve seat with retainer ring is connected.
This utility model is further arranged to: be provided with sealing gasket between described valve seat and retainer ring.
By using technique scheme, sealing gasket is set, the sealing effectiveness between valve seat and retainer ring can be improved, protect
Demonstrate,prove the sealing effectiveness between valve seat and retainer ring, it is to avoid fluid flows out in the gap between valve seat and retainer ring, causes and lets out
Leakage, improves sealing and the reliability of butterfly valve.
This utility model is further arranged to: the both sides being positioned at valve rod on the outer circumference surface of described extension pipe are provided with operation
Plate, described operation panel is provided with handle hole.
By using technique scheme, by arranging handle hole, and operation panel, when transport, can conveniently trigger
Valve body, convenient transport, additionally, operation panel is arranged on the both sides of valve rod, valve rod can be played a protective role, it is to avoid valve rod is in fortune
It is damaged time defeated.
This utility model is further arranged to: described valve seat is arranged on the feed end in passage, the end face of described valve seat with
The end face of valve body is arranged.
By using technique scheme, valve seat being arranged on feed end, operationally, fluid first passes through valve seat, subsequently
Entering back in passage, owing to being the circulation area circulation area less than passage of valve seat, so the fluid in entrance valve seat is just
Can spread rapidly, will not be detained in passage, the impurity in fluid and dust can be avoided to drop to passage and valve seat
Near, valve seat and ring wear can be effectively reduced, extend the service life of valve seat and sealing ring.
In sum, this utility model has the advantages that
1, by arranging gasket ring on the inwall of valve body, gasket ring can play a protective role with the inwall of valve body, can avoid
Valve body is corroded by fluid, extends the service life of valve body；
2, first face of cylinder and the second inclined plane, can improve the contact area of valve seat and sealing ring, can improve valve
The sealing property of body, is provided with polytetrafluoroethylsealed sealed ring on valve seat, and polytetrafluoroethylsealed sealed ring can abut with sealing ring, due to polytetrafluoroethylsealed sealed ring
Material soft, therefore, the sealing ring that pottery is made improves valve together with can being connected to closely with polytetrafluoroethylsealed sealed ring
Seat and the sealing effectiveness of sealing ring.
Accompanying drawing explanation
Fig. 1 is the installation diagram of embodiment one；
Fig. 2 is the assembling explosive view of embodiment one；
Fig. 3 is the sectional arrangement drawing of embodiment one；
Fig. 4 is valve seat and the retainer ring assembling schematic diagram of embodiment two；
Fig. 5 is the valve seat internal structure schematic diagram of embodiment two.
In figure, 1, valve body；11, passage；111, feed end；112, discharge end；12, extension pipe；121, scrobicular ring；2, valve seat；
21, counterbore；22, first face of cylinder；23, the first taper seat；24, polytetrafluoroethylsealed sealed ring；3, retainer ring；4, location screw；5, location
Post；6, locating slot；61, installing hole；7, sealing gasket；8, valve plate；81, mounting ring；82, boss；83, sealing ring；831, second
The face of cylinder；832, the second taper seat；9, valve rod；91, bulge loop；10, operation panel；101, handle hole.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-5, this utility model is described in further detail.
Embodiment one:
A kind of butterfly valve, including valve body 1, the cylindrical setting of valve body 1, runs through in valve body 1 and is provided with passage 11, and fluid is logical
Flowing in road 11, one end of passage 11 is feed end 111, and the other end is discharge end 112, is provided with valve seat 2, valve seat in passage 11
2 arrange ringwise and are made up of pottery, and the outer circumference surface of valve seat 2 is fitted with passage 11, valve body 1 rotates and is provided with valve rod 9, valve
Bar 9 runs through valve body 1 and arranges, with reference to Fig. 3, valve rod 9 and valve body 1 eccentric setting, valve rod 9 near the first face of cylinder 22 eccentric setting,
And eccentric distance is d2 between valve body 1, being fixedly installed valve plate 8 on the outer circumference surface of valve rod 9, valve plate 8 is also off with valve rod 9
Arrange, form eccentric d1 between valve rod 9 and valve plate 8, the end face of valve plate 8 is welded and fixed and is provided with mounting ring 81, mounting ring 81
It is two, axially arranged along valve rod 9, it is symmetricly set on the both sides of valve plate 8, on the outer circumference surface of each mounting ring 81, all welds
Being connected to two bosses 82, the bottom surface of boss 82 is welded with valve plate 8, and boss 82 is arranged on the both sides of mounting ring 81, and i.e. one
Individual valve plate 8 is provided with four bosses 82, and four bosses 82 are inclined on valve plate 8, is positioned at two of valve rod 9 homonymy and adds
The extended line of strong block 82 intersects.
The inner peripheral surface of valve seat 2 includes first face of cylinder 22 and the first taper seat 23 and is arranged on first face of cylinder 22
And the transition face between first face of cylinder 22, first face of cylinder 22 and the first taper seat 23 are arranged with valve rod 9 for axisymmetrical,
Being fixed with sealing ring 83 on the outer circumference surface of valve plate 8, sealing ring 83 is provided with and the first face of cylinder 22 and the first circular cone
The second face of cylinder 831 and the second taper seat 832 that face 23 coordinates, the diameter of valve rod 9 relatively valve body 1 offsets and arranges and close
First face of cylinder 22.
Valve seat 2 is positioned on the inner peripheral surface of valve seat 2 and is embedded with the polytetrafluoroethylsealed sealed ring 24 that can abut with sealing ring 83,
Polytetrafluoroethylsealed sealed ring 24 is embedded in valve seat 2 centre position, and after valve plate 8 is closed, polytetrafluoroethylsealed sealed ring 24 can be with sealing ring 83
Outer peripheral face abuts.
Valve seat 2 is fixedly installed on the inwall of passage 11, and valve seat 2 is arranged on the feed end 111 of passage 11, the end of valve seat 2
The end face of face and valve body 1, is wholely set on the inwall of passage 11 or is welded and fixed and be provided with retainer ring 3, retainer ring 3
The motion of valve plate 8, less than or equal to the internal diameter of valve seat 2, so will not be interfered by internal diameter, and valve seat 2 is removable with retainer ring 3
Unload connection, in the present embodiment, valve plate 8 is provided with screwed hole, valve seat 2 is provided with counterbore 21, is provided with and screw thread in counterbore 21
The location screw 4 that hole coordinates, location screw 4 can be multiple, arranges with the axis of valve seat 2 for center of circle circumference array, at valve seat 2
And being provided with sealing gasket 7 between retainer ring 3, sealing gasket 7 is arranged ringwise.
The outer circumference surface of valve body 1 is provided with the extension pipe 12 communicated with passage 11, and valve rod 9 rotates and is arranged on extension pipe 12
In, outwardly formation bulge loop 91 on the outer circumference surface of valve rod 9, the inwall of extension pipe 12 is provided with the scrobicular ring coordinated with bulge loop 91
121, the outer circumference surface of valve rod 9 is provided with bulge loop 91, in extension pipe 12, is provided with the scrobicular ring 121 coordinated with bulge loop 91, scrobicular ring
The thickness of 121 is slightly larger than bulge loop 91.
Being provided with some cannelures on the side of valve body 1, cannelure is with passage 11 as the center of circle, along the radial arrays of passage 11
Arrange.
Embodiment two:
It is with the difference of embodiment one, in the present embodiment, the face that retainer ring 3 contacts with valve seat 2 is provided with T-shaped
Locating dowel 5, locating dowel 5 is perpendicular to this face and arranges, is provided with the locating slot 6 coordinated with locating dowel 5 on valve seat 2, and locating slot 6 is in arc
Shape is arranged, and the center of circle of this arc overlaps with the center of circle of valve seat 2, is provided with the diameter head more than locating dowel 5 in the end of locating slot 6
The installing hole 61 of diameter, installing hole 61 communicates with locating slot 6, and during installation, locating dowel 5 enters locating slot 6 in installing hole 61
In, subsequently, rotating valve seat 2, locating dowel 5 i.e. can be located in locating slot 6.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model
The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (10)
1. a butterfly valve, including valve body (1), is provided with passage (11) in described valve body (1), passage (11) includes feed end (111)
And discharge end (112), it is characterised in that: detachably it is provided with the valve seat (2) being made up of pottery in described passage (11), described logical
Rotate in road (11) and be provided with valve rod (9), the outer circumference surface of described valve rod (9) is fixed with valve plate (8), on described valve plate (8)
Being provided with the sealing ring (83) being made up of pottery coordinated with valve seat (2), the medial surface of described valve seat (2) includes first face of cylinder
(22) and the first taper seat (23), described sealing ring (83) be provided with second face of cylinder (831) coordinated with valve seat (2) and
Second taper seat (832), described valve seat (2) is positioned on the inner peripheral surface of valve seat (2) and is embedded with and can support with sealing ring (83)
The polytetrafluoroethylsealed sealed ring (24) connect, described valve rod (9) axis offsets setting and near first face of cylinder relative to valve body (1) diameter
(22)。
Butterfly valve the most according to claim 1, it is characterised in that: described valve body (1) inwall is provided with the pad being made up of pottery
Ring.
Butterfly valve the most according to claim 1 and 2, it is characterised in that: the outer circumference surface of described valve body (1) is provided with and passage
(11) the extension pipe (12) communicated, described valve rod (9) two ends rotate and are arranged in extension pipe (12), the cylindrical of described valve rod (9)
Outwardly formation bulge loop (91) on side face, the inwall of described extension pipe (12) is provided with the scrobicular ring coordinated with bulge loop (91)
(121)。
Butterfly valve the most according to claim 1, it is characterised in that: the side of described valve body (1) is provided with some cannelures.
Butterfly valve the most according to claim 1, it is characterised in that: the inwall of described passage (11) is provided with and valve seat (2)
The retainer ring (3) that body is arranged, described valve seat (2) removably connects with retainer ring (3).
Butterfly valve the most according to claim 5, it is characterised in that: by location spiral shell between described valve seat (2) and retainer ring (3)
Nail (4) is fixed.
Butterfly valve the most according to claim 5, it is characterised in that: the face that described retainer ring (3) contacts with valve seat (2) is provided with
At least two T-shaped locating dowel (5), described valve seat (2) is provided with the locating slot (6) coordinated with locating dowel (5).
8. according to the butterfly valve described in claim 6 or 7, it is characterised in that: it is provided with close between described valve seat (2) and retainer ring (3)
Packing (7).
Butterfly valve the most according to claim 3, it is characterised in that: it is positioned at valve rod on the outer circumference surface of described extension pipe (12)
(9) both sides are provided with operation panel (10), and described operation panel (10) is provided with handle hole (101).
Butterfly valve the most according to claim 1, it is characterised in that: described valve seat (2) is arranged on the feed end in passage (11)
(111), the end face of described valve seat (2) is arranged with the end face of valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620818761.2U CN205859174U (en) | 2016-07-30 | 2016-07-30 | A kind of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620818761.2U CN205859174U (en) | 2016-07-30 | 2016-07-30 | A kind of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205859174U true CN205859174U (en) | 2017-01-04 |
Family
ID=57654243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620818761.2U Expired - Fee Related CN205859174U (en) | 2016-07-30 | 2016-07-30 | A kind of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205859174U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692041A (en) * | 2018-06-22 | 2018-10-23 | 江苏浩博塑业有限公司 | One kind compressing locking-type butterfly valve |
| CN111963324A (en) * | 2020-07-29 | 2020-11-20 | 东风商用车有限公司 | High-temperature-resistant high-back-pressure exhaust brake valve |
| CN115264087A (en) * | 2022-09-28 | 2022-11-01 | 江苏大田阀门制造有限公司 | Three-eccentric butterfly valve capable of being sealed in two directions |
-
2016
- 2016-07-30 CN CN201620818761.2U patent/CN205859174U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692041A (en) * | 2018-06-22 | 2018-10-23 | 江苏浩博塑业有限公司 | One kind compressing locking-type butterfly valve |
| CN111963324A (en) * | 2020-07-29 | 2020-11-20 | 东风商用车有限公司 | High-temperature-resistant high-back-pressure exhaust brake valve |
| CN115264087A (en) * | 2022-09-28 | 2022-11-01 | 江苏大田阀门制造有限公司 | Three-eccentric butterfly valve capable of being sealed in two directions |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20180730 |