CN207609790U - A kind of butterfly valve - Google Patents
A kind of butterfly valve Download PDFInfo
- Publication number
- CN207609790U CN207609790U CN201721582372.5U CN201721582372U CN207609790U CN 207609790 U CN207609790 U CN 207609790U CN 201721582372 U CN201721582372 U CN 201721582372U CN 207609790 U CN207609790 U CN 207609790U
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- CN
- China
- Prior art keywords
- valve
- valve rod
- valve body
- seat
- dish plate
- 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.)
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Abstract
The utility model discloses a kind of butterfly valves, including valve body, valve rod, dish plate and valve seat, the chimeric inner wall being arranged in valve body of the valve seat, the valve rod penetrates through the valve seat and valve body and upwardly extends, the dish plate is in the form of annular discs to be arranged in the valve body, and dish plate is fixed on the valve rod, the valve rod runs through the center of circle of the dish plate, valve rod drives dish plate to rotate realization in valve body and opens and closes or adjust, it is provided with sealing between the valve body top and valve rod, the sealing includes graphite packing, locking nut and Packing seat, the graphite packing lower end is fixedly installed the Packing seat, the graphite packing upper end is fixedly installed the locking nut.The butterfly valve of the utility model, the butterfly valve of the utility model strengthen the seal protection to valve rod, prevent medium outflow from corroding valve rod, and then improve the service life of butterfly valve by the way that sealing structure is arranged.
Description
Technical field
The utility model is related to a kind of control valve, especially a kind of butterfly valve.
Background technology
Butterfly valve can be used for the switch control of low pressure pipeline medium, and the opening and closing element of butterfly valve is a discoidal butterfly plate, is passed through
Valve rod drives dish plate to be rotated in valve body, to achieve the purpose that keying or adjusting.Existing butterfly valve uses the sealing of valve rod
Copper axis and O-ring, leakproofness be not strong, it is easy to cause valve in-vivo medium to reveal and corrode valve rod, lead to the service life of butterfly valve
It is short.
Utility model content
In view of this, that the main purpose of the utility model is to provide a kind of leakproofness is stronger, can improve service life
Butterfly valve.
A kind of in order to achieve the above object, the utility model provides butterfly valve, including valve body, valve rod, dish plate and valve seat, it is described
The chimeric inner wall being arranged in valve body of valve seat, the valve rod penetrate through the valve seat and valve body and upwardly extend, and the dish plate is in disk
Shape is arranged in the valve body, and dish plate is fixed on the valve rod, and the valve rod runs through the center of circle of the dish plate, and valve rod drives
Dish plate rotates realization in valve body and opens and closes or adjust, and sealing, the sealing are provided between the valve body top and valve rod
Including graphite packing, locking nut and Packing seat, the graphite packing lower end is fixedly installed the Packing seat, and the graphite is filled out
Material upper end is fixedly installed the locking nut.
Preferably, setting is fluted in the valve body of the Packing seat lower end, is provided on the valve rod and the recess
The flange of conjunction, the flange are connected in the groove.
The butterfly valve of the utility model, the butterfly valve of the utility model are strengthened by the way that sealing structure is arranged to the close of valve rod
Envelope protection prevents medium outflow from corroding valve rod, and then improves the service life of butterfly valve.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model butterfly valve；
Fig. 2 is the enlarged structure schematic diagram at A in Fig. 1；
Fig. 3 is the right side structural representation of Fig. 1.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
The embodiments of the present invention are described below in detail, the example of embodiment is shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the utility model, and should not be understood as the limit to the utility model
System.
As shown in Figure 1 to Figure 3, the butterfly valve of the utility model, including valve body 1, valve rod 2, dish plate 3 and valve seat 4, valve seat 4 be
Rubber material, the chimeric inner wall being arranged in valve body 1 of valve seat 4, valve rod 2 penetrate through valve seat 4 and valve body 1 and upwardly extend, and dish plate 3 is in circle
Plate-like is arranged in valve body 1, and dish plate 3 is fixed on valve rod 2, and valve rod 2 runs through the center of circle of dish plate 3, and dish plate is driven by valve rod 1
3 rotation realization keying or adjustings in valve body 1.It is provided with sealing 5 between 1 top of valve body and valve rod 2, for enhancing to valve rod
2 seal protection prevents medium leakage corrosion valve rod.Sealing 5 includes graphite packing 50, locking nut 51 and Packing seat 52,
The lower end of graphite packing 50 is fixedly installed Packing seat 52, and the upper end of graphite packing 50 is fixedly installed locking nut 51, prevents
Graphite packing 52 is moved.
The lower end of Packing seat 52 is arranged fluted 53 in valve body 1, is provided on valve rod 2 matched convex with groove 53
Edge 23 realizes the limit to valve rod 2 at groove 53, makes valve rod 2 not by the way that the flange 23 of valve rod 2 to be connected in groove 53
It can skid off upwards.Packing seat 52 is stuck between flange 23 and graphite packing 50 simultaneously, is further enhanced leakproofness, is prevented medium from letting out
Dew corrosion valve rod.
It can be seen that the butterfly valve of the utility model strengthens the seal protection to valve rod by setting sealing structure,
It prevents medium outflow from corroding valve rod, and then improves the service life of butterfly valve.
The above, the only preferred embodiment of the utility model, are not intended to limit the protection of the utility model
Range.
Claims (2)
1. a kind of butterfly valve, including valve body, valve rod, dish plate and valve seat, the chimeric inner wall being arranged in valve body of the valve seat, the valve rod
It penetrates through the valve seat and valve body and upwardly extends, the dish plate is in the form of annular discs to be arranged in the valve body, and dish plate is fixed on institute
It states on valve rod, the valve rod runs through the center of circle of the dish plate, and valve rod drives dish plate to rotate realization in valve body and opens and closes or adjust,
Be characterized in that, be provided with sealing between the valve body top and valve rod, the sealing include graphite packing, locking nut and
Packing seat, the graphite packing lower end are fixedly installed the Packing seat, and the graphite packing upper end is fixedly installed the lock
Tight nut.
2. butterfly valve as described in claim 1, which is characterized in that fluted, the valve is arranged in the valve body of the Packing seat lower end
The flange with the fit depressions is provided on bar, the flange is connected in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721582372.5U CN207609790U (en) | 2017-11-23 | 2017-11-23 | A kind of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721582372.5U CN207609790U (en) | 2017-11-23 | 2017-11-23 | A kind of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207609790U true CN207609790U (en) | 2018-07-13 |
Family
ID=62796230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721582372.5U Active CN207609790U (en) | 2017-11-23 | 2017-11-23 | A kind of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207609790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022538006A (en) * | 2019-07-09 | 2022-08-31 | プロテクナ エスアー | Stem locking mechanism |
-
2017
- 2017-11-23 CN CN201721582372.5U patent/CN207609790U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022538006A (en) * | 2019-07-09 | 2022-08-31 | プロテクナ エスアー | Stem locking mechanism |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |