CN208041167U - A kind of butterfly valve - Google Patents
A kind of butterfly valve Download PDFInfo
- Publication number
- CN208041167U CN208041167U CN201820474522.9U CN201820474522U CN208041167U CN 208041167 U CN208041167 U CN 208041167U CN 201820474522 U CN201820474522 U CN 201820474522U CN 208041167 U CN208041167 U CN 208041167U
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- China
- Prior art keywords
- valve
- valve body
- gland
- plate
- valve seat
- Prior art date
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- 239000000945 filler Substances 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 210000004907 gland Anatomy 0.000 claims description 18
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses a kind of butterfly valves, the cavity of valve body being internally provided with through valve body, valve seat compatible with cavity is fixedly connected on the inner wall of valve body, valve seat is internally provided with valve plate, the shape of valve plate is adapted with the cavity inside valve seat, the cross section of the peripheral surface of valve plate is the first inclined surface, and the cross section of valve seat is the second inclined surface compatible with the first inclined surface, and valve plate is rotatablely connected with valve seat；Locator is provided between valve plate and valve seat, locator is fixedly connected with valve plate；The top of valve shaft is arranged with upper bushing, and filler device is provided at the top of upper bushing, and the lower part of valve shaft is arranged with lower bushing, and the bottom of valve body is fixedly connected with bottom cover, and worm gear case is arranged in the top of holder, and valve shaft is connect with worm gear case.The utility model has preferable sealing performance.
Description
Technical field
The utility model is related to valve fields, and in particular to a kind of butterfly valve.
Background technology
Cut-out and throttling action are mainly played on pipeline.Butterfly valve opening and closing element is a discoidal butterfly plate, in valve body around
The axis rotation of its own, to achieve the purpose that keying or adjusting, the working environment residing for butterfly valve is mostly more severe, than
Such as more dirt, high temperature, the pressure medium of circulation are larger, medium has corrosivity, and sealing performance is even more important, and existing butterfly valve
Sealing performance is bad.
Invention content
In order to solve the above technical problems, the utility model provides a kind of butterfly valve.
The technical solution of the utility model is：
A kind of butterfly valve, the cavity of valve body being internally provided with through valve body are fixedly connected on the inner wall of valve body and cavity
Compatible valve seat, valve seat are internally provided with valve plate, and the shape of valve plate is adapted with the cavity inside valve seat, the periphery of valve plate
The cross section in face is the first inclined surface, and the cross section of valve seat is the second inclined surface compatible with the first inclined surface, valve plate and valve
Seat rotation connection；Locator is provided between valve plate and valve seat, locator is fixedly connected with valve plate；The top of valve shaft is arranged with
Bushing is provided with filler device at the top of upper bushing, and the lower part of valve shaft is arranged with lower bushing, and the bottom of valve body is fixedly connected with bottom
Lid, worm gear case are arranged in the top of holder, and valve shaft is connect with worm gear case.
Further, the filler device includes filler, gland and bolt, and the top of upper bushing is provided with filler,
Gland is provided with above filler, filler is set in the outside of valve shaft with gland, screw thread is provided on gland
Hole, through having corresponding threaded hole, the upper surface of valve body to be provided with corresponding threaded hole on holder, bolt passes through filler pressure
Lid, holder are fixedly connected with gland and valve body with the threaded hole on valve body.
Further, the bottom of the lower bushing is provided with thrust ring, and thrust ring is arranged in the bottom of valve shaft.
Further, the bottom of the valve body is provided with annular groove, and gasket is arranged in annular groove.
Further, the turbine box is internally provided with worm reducer.
The beneficial effects of the utility model are：The utility model passes through the upper bushing that is arranged on valve shaft, lower bushing, filler
Device and gasket can prevent fluid from entering between valve shaft and valve body and play good sealing function, and have both preferable anticorrosive
Property.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the sectional view of the utility model.
Fig. 2 is the structural schematic diagram of the utility model.
Fig. 3 is the enlarged drawing at a.
Fig. 4 is the enlarged drawing at b.
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings, the present embodiment is not constituted to this
The limitation of utility model.
As shown in Figure 1, 2, a kind of butterfly valve, including valve body 1, valve seat 2, valve plate 3, locator 4, screw 5, valve shaft 6, positioning pin
7, upper bushing 8, filler 9, gland 10, holder 11, bolt 12, worm gear case 13, handwheel 14, lower bushing 15, thrust ring 16, bottom
Lid 17 and gasket 18.
Valve body 1 is circle, and valve body 1 is internally provided with the cavity through valve body 1, is fixedly connected on the inner wall of valve body 1
Valve seat 2 corresponding with cavity, valve seat 2 are internally provided with valve plate 3, and shape and the cavity inside valve seat 2 of valve plate 3 are mutually fitted
Match, valve plate 3 is rotatablely connected with valve seat 2, and valve plate 3 is moved relative to valve seat 2.Valve plate 3 is round table-like, as shown in figure 3, valve plate 3
The cross section of peripheral surface is the first inclined surface 301, and the cross section of valve seat 2 is corresponding second inclined surface 201, the first inclined surface
301 and second the setting of inclined surface 201 be sealed cooperation convenient for valve plate 3 and valve seat 2.It is fixed to be provided between valve plate 3 and valve seat 2
Position device 4, locator 4 are fixedly connected by screw 5 with valve plate 3.
The valve shaft 6 being vertically arranged runs through top and lower part, the first protrusion 302 and the second protrusion 303 of valve plate 3 of valve body 1,
First protrusion 302 of valve plate 3 is horizontally arranged with first positioning hole 304, and second location hole is horizontally arranged on the second protrusion 303
305, third location hole 601 corresponding with first positioning hole 304, opposite with second location hole 305 is horizontally arranged on valve shaft 6
The 4th location hole 602 answered, two positioning pins 7 extend through first positioning hole 304 and third location hole 601, second location hole
305 are fixedly connected with valve shaft 6 and valve plate 3 with the 4th location hole 602.It is adjusted by valve shaft 6 drives the rotation of valve plate 3 internal logical
The open and-shut mode in road.
As shown in figure 4, the top of valve shaft 6 is arranged with upper bushing 8, the top of upper bushing 8 is provided with filler 9, and filler 9 is arranged
In the outside of valve shaft 6,9 top of filler is provided with gland 10, and gland 10 is set on valve shaft 6, on gland 10
It is provided with threaded hole, running through on holder 11 has corresponding threaded hole, the upper surface of valve body 1 to be provided with corresponding threaded hole,
Bolt 12 passes through gland 10, holder 11 to be fixedly connected with gland 10 and valve body 1 with the threaded hole on valve body 1, makes filler 9
Pressed by gland 10, increases leakproofness.Worm gear case 13 is arranged in the top of holder 11, and valve shaft 6 is connect with worm gear case 13, whirlpool
Roller box 13 is internally provided with worm reducer.Using worm reducer, it can not only make valve plate 3 that there is self-lock ability, make valve plate 3
Stop at an arbitrary position.Turbine box 13 is connect with handwheel 14, by rotating handwheel 14, drives the rotation of valve plate 3.
The lower part of valve shaft 6 is arranged with lower bushing 15, and the bottom of lower bushing 15 is provided with thrust ring 16, and the setting of thrust ring 16 exists
The bottom of valve shaft 6.
The bottom of valve body 1 is provided with bottom cover 17, and bottom cover 17 is connect by bolt 12 with the bottom thread of valve body 1, valve body 1
Bottom is provided with annular groove, and gasket 18 is arranged in annular groove, further increases the leakproofness of butterfly valve.
The operation principle of the utility model is：Handwheel is rotated, the turbine rotation in turbine box drives valve shaft rotation, valve shaft
Valve plate rotation is driven, changes the deflection angle of valve plate, you can control the flow of medium.
The above descriptions are merely preferred embodiments of the present invention, is not used in limitation the utility model, this field skill
Art personnel can make various modifications or equivalent replacements in the essence and protection domain of the utility model to the utility model,
This modification or equivalent replacement also should be regarded as falling in the protection domain of technical solutions of the utility model.
Claims (5)
1. a kind of butterfly valve, it is characterised in that：The cavity of valve body being internally provided with through valve body is fixedly connected on the inner wall of valve body
There are valve seat compatible with cavity, valve seat to be internally provided with valve plate, the shape of valve plate is adapted with the cavity inside valve seat, valve
The cross section of the peripheral surface of plate is the first inclined surface, and the cross section of valve seat is the second inclined surface compatible with the first inclined surface,
Valve plate is rotatablely connected with valve seat；Locator is provided between valve plate and valve seat, locator is fixedly connected with valve plate；The top of valve shaft
It is arranged with upper bushing, filler device is provided at the top of upper bushing, the lower part of valve shaft is arranged with lower bushing, and the bottom of valve body is fixed
Bottom cover is connected, worm gear case is arranged in the top of holder, and valve shaft is connect with worm gear case.
2. a kind of butterfly valve according to claim 1, it is characterised in that：The filler device include filler, gland and
The top of bolt, upper bushing is provided with filler, and gland is provided with above filler, and filler is set in valve shaft with gland
Outside, threaded hole is provided on gland, through thering is corresponding threaded hole, the upper surface of valve body to be provided with phase on holder
Corresponding threaded hole, bolt pass through gland, holder to be fixedly connected with gland and valve body with the threaded hole on valve body.
3. a kind of butterfly valve according to claim 2, it is characterised in that：The bottom of the lower bushing is provided with thrust ring, only
Throw-out collar is arranged in the bottom of valve shaft.
4. a kind of butterfly valve according to claim 3, it is characterised in that：The bottom of the valve body is provided with annular groove, pad
Piece is arranged in annular groove.
5. a kind of butterfly valve according to claim 4, it is characterised in that：The worm gear case is internally provided with worm reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820474522.9U CN208041167U (en) | 2018-03-30 | 2018-03-30 | A kind of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820474522.9U CN208041167U (en) | 2018-03-30 | 2018-03-30 | A kind of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208041167U true CN208041167U (en) | 2018-11-02 |
Family
ID=63947256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820474522.9U Active CN208041167U (en) | 2018-03-30 | 2018-03-30 | A kind of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208041167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237479A (en) * | 2020-03-25 | 2020-06-05 | 江苏丰禾机械制造股份有限公司 | Butterfly valve with automatic sealing function |
-
2018
- 2018-03-30 CN CN201820474522.9U patent/CN208041167U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237479A (en) * | 2020-03-25 | 2020-06-05 | 江苏丰禾机械制造股份有限公司 | Butterfly valve with automatic sealing function |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |