CN206377342U - Oil-leakage-prevention handle type butterfly valve - Google Patents
Oil-leakage-prevention handle type butterfly valve Download PDFInfo
- Publication number
- CN206377342U CN206377342U CN201621418819.0U CN201621418819U CN206377342U CN 206377342 U CN206377342 U CN 206377342U CN 201621418819 U CN201621418819 U CN 201621418819U CN 206377342 U CN206377342 U CN 206377342U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- epimere
- oil
- interlude
- leakage
- 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
The utility model provides a kind of oil-leakage-prevention handle type butterfly valve.Include and rotating shaft and butterfly plate are installed in valve body, valve body, described rotating shaft is divided into epimere, interlude, three sections of hypomere, interlude diameter is maximum, being wherein provided with a circle sealing ring outside hypomere is sealed, and interlude is polished rod, and epimere is threaded rod；The epimere of described rotating shaft is provided with Dual-layer sealing device, first layer sealing device includes a sealing shroud from bottom to up, second layer sealing device is oil suction backing plate, and oil suction backing plate is arranged close to the position of rotating shaft upper end, the cavity around rotating shaft epimere and external shell are separated.The utility model is simple in construction, and oil leak facility is put in increase in rotating shaft, can reduce oily substance to housing and the infiltration of rotating shaft, reduce oil accident, improve service life.
Description
Technical field
The utility model is related to valve components technical field, is related specifically to a kind of oil-leakage-prevention handle type butterfly valve.
Background technology
Butterfly valve is called flap valve, is a kind of regulating valve simple in construction, what the switch available for low pressure pipeline medium was controlled
Butterfly valve refers to that closure member (flap or butterfly plate) is disk, a kind of valve of open and close is reached around valve shaft rotation, valve can
For controlling all kinds such as empty gas and water, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium
The flowing of fluid.It is main on pipeline to play cut-out and throttling action.Butterfly valve opening and closing element is a discoidal butterfly plate, in valve body
Rotated around the axis of its own, so as to reach the purpose for opening and closing or adjusting.Butterfly plate is driven by valve rod, if turning over 90 °, just can be completed
Once open and close.Change the deflection angle of butterfly plate, you can the flow of control medium.
Applying working condition and medium：Butterfly valve is applied to producer, coal gas, natural gas, liquefied petroleum gas, town gas, cold and hot
Air, chemical industry smelt and the engineering system such as generation environment-friendly, building water supply and drainage in convey various corrosivity, non-corrosive fluids medium
Pipeline on, the flowing for adjusting and blocking medium.
The butterfly valve used at present, because the sealing property of rotating shaft and valve insertion body is not fine, use time is after long afterwards, chamber
Internal liquid can be penetrated into the gap of rotating shaft and housing, occur oil accident, so as to influence the service life of butterfly valve.
The content of the invention
Technical problem to be solved in the utility model is to overcome the defect of prior art there is provided one kind is simple in construction,
Oil leak facility is put in increase in rotating shaft, is reduced oily substance to housing and the infiltration of rotating shaft, is reduced oil accident, improves service life
Oil-leakage-prevention handle type butterfly valve.
To achieve these goals, the utility model uses following technical scheme：
Oil-leakage-prevention handle type butterfly valve, includes in valve body, valve body and is provided with rotating shaft and butterfly plate, it is characterised in that be described
Rotating shaft is divided into epimere, interlude, three sections of hypomere, and interlude diameter is maximum, and circle sealing ring progress is wherein provided with outside hypomere
Sealing, interlude is polished rod, and epimere is threaded rod；The epimere of described rotating shaft is provided with Dual-layer sealing device, and from bottom to up
One layer of sealing device includes a sealing shroud, and sealing shroud is arranged in the cavity around rotating shaft epimere, and sealing shroud section is side
Shape set, bottom sets flexible sealing gasket, and inside is connected on the epimere of rotating shaft provided with inner screw sheath, in axis of rotation then therewith
Elevating movement, the lower end extreme sport position of sealing shroud is the junction of epimere and interlude；Second layer sealing device is oil suction
Backing plate, oil suction backing plate is arranged close to the position of rotating shaft upper end, and the cavity around rotating shaft epimere and external shell are separated.
In such scheme, described rotating shaft top is also equipped with handle, and handle is horizontal structure, on the top of valve body also
One spring buffer block is installed, limiting buffer is carried out for blocking handle.
In such scheme, the interlude of described rotating shaft is additionally provided with the encapsulant of two layers of annular.
The utility model is by adopting the above-described technical solution, have the advantages that：
The utility model is simple in construction, and oil leak facility is put in increase in rotating shaft, can reduce oily substance to housing and turn
The infiltration of axle, reduces oil accident, improves service life.
Brief description of the drawings
Fig. 1 is the front view of the utility model embodiment；
Fig. 2 is the left view of the utility model embodiment；
In figure：1 rotating shaft, 2 butterfly plates, 3 sealing rings, 4 sealing shrouds, 5 oil suction backing plates, 6 sealing gaskets, 7 spring buffer blocks, 8 handles.
Embodiment
In order that content of the present utility model is readily apparent understood, below according to specific embodiment and with reference to attached
Figure, is described in further detail to the utility model.
The oil-leakage-prevention handle type butterfly valve as shown in Fig. 1 Fig. 2, includes and rotating shaft 1 and butterfly plate 2 is provided with valve body, valve body, described
1 point of rotating shaft be epimere, interlude, three sections of hypomere, interlude diameter is maximum, is wherein provided with a circle sealing ring 3 outside hypomere
Sealed, interlude is polished rod, epimere is threaded rod；The epimere of described rotating shaft 1 is provided with Dual-layer sealing device, from it is lower to
Upper first layer sealing device includes a sealing shroud 4, and sealing shroud 4 is arranged in the cavity around the epimere of rotating shaft 1, sealing shroud 4
Section is square sleeve, and bottom sets flexible sealing gasket 6, and inside is connected on the epimere of rotating shaft 1 provided with inner screw sheath, in rotating shaft 1
Then elevating movement therewith during rotation, the lower end extreme sport position of sealing shroud 4 is the junction of epimere and interlude；The second layer is close
Encapsulation is set to oil sucting pad plate 5, and oil suction backing plate 5 is arranged close to the position of the upper end of rotating shaft 1, by the cavity around the epimere of rotating shaft 1
Separated with external shell.
In the present embodiment, the described top of rotating shaft 1 is also equipped with handle 8, and handle 8 is horizontal structure, on the top of valve body
End is also equipped with a spring buffer block 7, and limiting buffer is carried out for blocking handle 8.
In the present embodiment, the interlude of described rotating shaft 1, is additionally provided with the encapsulant of two layers of annular.
Particular embodiments described above, enters to technical problem, technical scheme and the beneficial effect that the utility model is solved
Go further description, should be understood that and the foregoing is only specific embodiment of the utility model, and without
It is all within spirit of the present utility model and principle in limitation the utility model, any modification, equivalent substitution and improvements done
Deng should be included within protection domain of the present utility model.
Claims (3)
1. oil-leakage-prevention handle type butterfly valve, includes in valve body, valve body and is provided with rotating shaft and butterfly plate, it is characterised in that described turns
Axle is divided into epimere, interlude, three sections of hypomere, and interlude diameter is maximum, circle sealing ring progress is wherein provided with outside hypomere close
Envelope, interlude is polished rod, and epimere is threaded rod；The epimere of described rotating shaft is provided with Dual-layer sealing device, and from bottom to up first
Layer sealing device includes a sealing shroud, and sealing shroud is arranged in the cavity around rotating shaft epimere, and sealing shroud section is square
Set, bottom sets flexible sealing gasket, and inside is connected on the epimere of rotating shaft provided with inner screw sheath, then risen therewith in axis of rotation
Drop motion, the lower end extreme sport position of sealing shroud is the junction of epimere and interlude；Second layer sealing device is oil sucting pad
Plate, oil suction backing plate is arranged close to the position of rotating shaft upper end, and the cavity around rotating shaft epimere and external shell are separated.
2. oil-leakage-prevention handle type butterfly valve as claimed in claim 1, it is characterised in that：Described rotating shaft top is also equipped with handle
Hand, handle is horizontal structure, and a spring buffer block is also equipped with the top of valve body, and spacing delay is carried out for blocking handle
Punching.
3. oil-leakage-prevention handle type butterfly valve as claimed in claim 1, it is characterised in that：The interlude of described rotating shaft, also sets up
There is the encapsulant of two layers of annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621418819.0U CN206377342U (en) | 2016-12-22 | 2016-12-22 | Oil-leakage-prevention handle type butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621418819.0U CN206377342U (en) | 2016-12-22 | 2016-12-22 | Oil-leakage-prevention handle type butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206377342U true CN206377342U (en) | 2017-08-04 |
Family
ID=59407287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621418819.0U Expired - Fee Related CN206377342U (en) | 2016-12-22 | 2016-12-22 | Oil-leakage-prevention handle type butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206377342U (en) |
-
2016
- 2016-12-22 CN CN201621418819.0U patent/CN206377342U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170804 Termination date: 20191222 |