CN206329748U - A kind of new anti-leakage butterfly valve - Google Patents
A kind of new anti-leakage butterfly valve Download PDFInfo
- Publication number
- CN206329748U CN206329748U CN201621142626.7U CN201621142626U CN206329748U CN 206329748 U CN206329748 U CN 206329748U CN 201621142626 U CN201621142626 U CN 201621142626U CN 206329748 U CN206329748 U CN 206329748U
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- CN
- China
- Prior art keywords
- valve
- shaft
- square
- valve seat
- rectangular cavity
- 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 discloses a kind of new anti-leakage butterfly valve, including：Valve body, valve seat, valve plate and valve shaft, sealing shroud is set between the valve seat and valve body, the valve shaft is arranged in valve seat and sets external thread structure on the excircle of valve shaft, the external thread structure is meshed with the internal thread in valve support chamber, and square shaft is fixedly connected at the top of the valve plate, and the square shaft is the axis body that section is square, valve shaft bottom sets the rectangular cavity of cross-sectional square shape, square shaft is arranged in rectangular cavity, when valve shaft is moved down, and square shaft can be slided in rectangular cavity；Valve seat contacts with valve shaft and fills airtight and watertight padding positioned at helicitic texture top position, and the airtight and watertight padding is made up of polytetrafluoroethylene (PTFE).Not only there is the stronger advantage of sealing in the utility model, can also be prevented effectively from filler and occur the phenomenons such as aging, corrosion after a long time use, service life is longer, and stability is also stronger.
Description
Technical field
The utility model is related to a kind of butterfly valve, specifically a kind of new anti-leakage 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.The outward leakage problem of butterfly valve refers to that butterfly valve performs machine
Always there is certain leakage problem between connection and valve rod and airtight and watertight padding between structure and valve body, cause butterfly valve constantly to extravasation
Water, sealing is poor, in addition, airtight and watertight padding is made frequently with rubber, easy aging after a long time use causes sealing to enter one
Step reduction.
Utility model content
The purpose of this utility model is to provide a kind of new anti-leakage butterfly valve, to solve what is proposed in above-mentioned background technology
Problem.
To achieve the above object, the utility model provides following technical scheme：
A kind of new anti-leakage butterfly valve, including：Valve body, valve seat, valve plate and valve shaft, set close between the valve seat and valve body
Big envelope, the valve shaft is arranged in valve seat and sets external thread structure on the excircle of valve shaft, and the external thread structure is with being located at valve
Internal thread in seat chamber is meshed, and square shaft is fixedly connected at the top of the valve plate, and the square shaft is the axis body that section is square, valve
Axle bottom sets the rectangular cavity of cross-sectional square shape, and square shaft is arranged in rectangular cavity, and when valve shaft is moved down, square shaft can be square
Slided in chamber；Valve seat contacts with valve shaft and fills airtight and watertight padding positioned at helicitic texture top position, and the airtight and watertight padding is by poly- four
PVF is made.
It is used as further program of the utility model：Gland is fixedly connected at the top of the valve seat.
It is used as further program of the utility model：The gland and valve shaft contact position mounting O-shaped rings.
It is used as further program of the utility model：The sealing shroud is made of nitrile rubber.
Compared with prior art, the beneficial effects of the utility model are：In the utility model, valve shaft passes through spiral shell with valve base chamber
Line is connected, and the mode of packing seal is replaced using thread seal, not only with the stronger advantage of sealing, can also be prevented effectively from and fill out
There are the phenomenons such as aging, corrosion after a long time use in material, and service life is longer, and stability is also stronger, and passes through square shaft and side
The moment of torsion of valve shaft is transferred on valve plate by shape chamber, when valve shaft is moved up and down, and square shaft is also relatively moved in rectangular cavity, is solved
The problem of screw connection structure lower valve shaft is moved up and down.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of valve shaft and valve plate in the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Refer in Fig. 1~2, the utility model embodiment, a kind of new anti-leakage butterfly valve, including：Valve body 8, valve seat 5,
Valve plate 9 and valve shaft 1, set sealing shroud 7, it is interior and valve shaft 1 that the valve shaft 1 is arranged on valve seat 5 between the valve seat 5 and valve body 8
External thread structure 6 is set on excircle, and the external thread structure 6 is meshed with the internal thread in the chamber of valve seat 5, the valve plate 9
Top is fixedly connected square shaft 10, and the square shaft 10 is the axis body that section is square, and the bottom of valve shaft 1 sets the side of cross-sectional square shape
Shape chamber 11, square shaft 10 is arranged in rectangular cavity 11, when valve shaft 1 is moved down, and square shaft 10 can be slided in rectangular cavity 11, valve shaft
By thread seal between 1 and valve seat 5, it may replace by the way of packing seal, sealing effectiveness is more preferable, and helicitic texture will not go out
Existing aging, therefore stability is more preferably, and when valve shaft 1 is rotated, because the effect of screw-driven, valve shaft 1 can be moved down, and lead to
Square shaft 10 and the transmitting torque of rectangular cavity 11 are crossed, valve plate 9 is turned on and off；Valve seat 5 is contacted with valve shaft 1 and positioned at helicitic texture 6
Airtight and watertight padding 4 is filled in top position, and the airtight and watertight padding 4 is made up of polytetrafluoroethylene (PTFE), can further improve valve shaft and valve base chamber
Sealing.
The top of valve seat 5 is fixedly connected gland 2, and airtight and watertight padding 4 is compressed.
The gland 2 and the contact position mounting O-shaped rings 3 of valve shaft 1, improve sealing.
The sealing shroud 7 is made of nitrile rubber.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (4)
1. a kind of new anti-leakage butterfly valve, including：Valve body, valve seat, valve plate and valve shaft, set sealing between the valve seat and valve body
Set, it is characterised in that：The valve shaft is arranged in valve seat and sets external thread structure on the excircle of valve shaft, the external thread structure
It is meshed with the internal thread in valve support chamber, square shaft is fixedly connected at the top of the valve plate, the square shaft is that section is square
Axis body, valve shaft bottom set cross-sectional square shape rectangular cavity, square shaft is arranged in rectangular cavity, when valve shaft is moved down, side
Axle can be slided in rectangular cavity；Valve seat contacts with valve shaft and fills airtight and watertight padding, the sealing positioned at helicitic texture top position
Filler is made up of polytetrafluoroethylene (PTFE).
2. a kind of new anti-leakage butterfly valve according to claim 1, it is characterised in that：It is fixedly connected and fills out at the top of the valve seat
Expect gland.
3. a kind of new anti-leakage butterfly valve according to claim 2, it is characterised in that：The gland is contacted with valve shaft
Position mounting O-shaped rings.
4. a kind of new anti-leakage butterfly valve according to claim 1, it is characterised in that：The sealing shroud uses nitrile rubber
It is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621142626.7U CN206329748U (en) | 2016-10-20 | 2016-10-20 | A kind of new anti-leakage butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621142626.7U CN206329748U (en) | 2016-10-20 | 2016-10-20 | A kind of new anti-leakage butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206329748U true CN206329748U (en) | 2017-07-14 |
Family
ID=59287211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621142626.7U Expired - Fee Related CN206329748U (en) | 2016-10-20 | 2016-10-20 | A kind of new anti-leakage butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206329748U (en) |
-
2016
- 2016-10-20 CN CN201621142626.7U patent/CN206329748U/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: 20170714 Termination date: 20201020 |