CN205745353U - Butterfly valve - Google Patents
Butterfly valve Download PDFInfo
- Publication number
- CN205745353U CN205745353U CN201620022202.0U CN201620022202U CN205745353U CN 205745353 U CN205745353 U CN 205745353U CN 201620022202 U CN201620022202 U CN 201620022202U CN 205745353 U CN205745353 U CN 205745353U
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- CN
- China
- Prior art keywords
- valve
- described valve
- plate
- butterfly
- shaft
- 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
This utility model provides a kind of butterfly valve, including valve body, valve shaft, valve seat and valve plate；Wherein, valve body is provided with flowing hole；Valve seat is sheathed on the inwall of flowing hole；Valve shaft sequentially passes through valve seat and valve seat, and is fixedly linked with valve plate；Valve plate is arranged at flowing hole, and coordinates with valve base sealing；Valve shaft and valve body and valve seat are rotatably assorted and close the logical of flowing hole with drive valve plate；The material of valve body and valve plate is spheroidal graphite cast-iron；Valve seat is elastic material, and with valve plate elastic fit.Such scheme can solve that the sealing effectiveness that current butterfly valve exists is poor, bear the problem that pressure is less.
Description
Technical field
This utility model relates to valve body technical field, particularly relates to a kind of butterfly valve.
Background technology
In industrial fluids tubing, butterfly valve is commonly used as the equipment of regulated fluid flow.But
Current butterfly valve is usually one-way sealing, and sealing effectiveness is poor；It addition, the pressure that current butterfly valve bears is relatively
Low, and then cause the life-span shorter.
Utility model content
The purpose of this utility model is to provide a kind of butterfly valve, to solve the sealing effectiveness that current butterfly valve exists
The problem that poor and pressure is less.
To achieve these goals, the following technical scheme of this utility model offer:
A kind of butterfly valve, including valve body, valve shaft, valve seat and valve plate；Wherein, described valve body was provided with
Discharge orifice；Described valve seat is sheathed on the inwall of described flowing hole；Described valve shaft sequentially passes through valve body and described
Valve seat, and be fixedly linked with described valve plate；Described valve plate is arranged at described flowing hole, and with described valve
Seat seals and coordinates；Described valve shaft is all rotatably assorted to drive described valve plate with described valve body and described valve seat
Logical to flowing hole closes；The material of described valve body and described valve plate is spheroidal graphite cast-iron；Described valve seat is
Elastic material, and with described valve plate elastic fit.
Preferably, in above-mentioned butterfly valve, the operating side of described valve shaft is provided with worm and gear drive mechanism；
Described worm-and-wheel gear is used for driving described valve shaft to rotate.
Preferably, in above-mentioned butterfly valve, the top of described valve shaft and described valve body and described worm and gear machine
Between the shell of structure, and it is provided with lining between the bottom of described valve shaft and described valve body.
Preferably, in above-mentioned butterfly valve, described valve plate is provided with connection chamber, and described valve shaft is arranged in described
Connect chamber, and be fixedly linked by pin.
Preferably, in above-mentioned butterfly valve, the cross section of described flowing hole is circular, and described valve plate is disk
Shape.
Preferably, in above-mentioned butterfly valve, described valve seat is made up of quality of rubber materials.
Preferably, in above-mentioned butterfly valve, the surface of described valve plate has nickel coating.
Preferably, in above-mentioned butterfly valve, the material of described valve seat is nitrile rubber or ethylene propylene diene rubber.
In butterfly valve disclosed in this utility model, valve plate and the valve base sealing elastic fit of elastic construction, valve
Plate extruding valve base inner wall constitutes sealing structure, and then realizes two way seal, when can improve the closure of butterfly valve
Sealability.Meanwhile, the material of valve body and valve plate all uses spheroidal graphite cast-iron, the valve body of this material
Higher with valve plate ability to bear, and then the service life of butterfly valve can be extended.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to enforcement
In example, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only
Some embodiments described in this utility model, for those of ordinary skill in the art, it is also possible to according to
These accompanying drawings obtain other accompanying drawing.
The structural representation of the butterfly valve that Fig. 1 provides for this utility model embodiment；
Fig. 2 is Fig. 1 phantom under another visual angle；
Fig. 3 be closed for the butterfly valve that this utility model embodiment provides under perspective view；
Fig. 4 is in the stereochemical structure signal of fully open state for the butterfly valve that this utility model embodiment provides
Figure.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical solution of the utility model, below in conjunction with
This utility model is further detailed by accompanying drawing.
Refer to Fig. 1-4, this utility model embodiment provides a kind of butterfly valve.The butterfly valve provided includes valve body
4, valve shaft 8, valve seat 6 and valve plate 7.Wherein, valve body 4 is the basis of whole butterfly valve, for other of butterfly valve
Building block provides installation position.Valve body 4 is provided with flowing hole, and valve seat 6 is sheathed on the inwall of flowing hole.This
In embodiment, valve seat 6 is made up of elastic material.Concrete, valve seat 6 is generally made up of quality of rubber materials, example
Such as nitrile rubber or ethylene propylene diene rubber.Butterfly valve can select applicable elastic material according to different working environments
Matter makes valve seat 6.
Valve seat 6, as potted component, is sheathed on the inwall of flowing hole, and fits with the inwall of flowing hole.
Valve shaft 8 sequentially passes through valve body 4 and valve seat 6, and is fixedly linked with valve plate 7.Valve shaft 8 and valve plate 7
Detachably it is connected by pin, concrete, taper bolt 9 can be used to realize the company of valve shaft 8 and valve plate 7
Connect.Valve plate 7 is arranged at flowing hole, and coordinates with valve seat 6 sealing, and then realizes the envelope of flowing hole
Stifled.
In the present embodiment, valve shaft 8 is all rotatably assorted with valve body 4 and valve seat 6 and realizes with drive valve plate 7
Logical to flowing hole closes.In the present embodiment, the material of valve body 4 and valve plate 7 is nodular cast iron, ball
Grind castiron valve body 4 and valve plate 7 can bear bigger pressure.Valve seat 6 is elastic with valve plate 7
Laminating, guarantees sealing property between valve plate 7 and valve seat 6 by the elastic restoring force of valve seat 6.
In the present embodiment, valve shaft 8 can be that stainless steel is made.Valve shaft 8 has operating side, passes through
Operation operating side rotates and then whole valve shaft 8 is rotated, and finally makes valve shaft 8 drive valve plate 7 turns
Dynamic to change the valve plate 7 closing or open-minded to flowing hole.Certainly, valve shaft 8 drive valve plate 7 rotate to
The direction parallel with the cross section of flowing hole can realize the closedown of butterfly valve, as shown in Figure 3；Work as valve shaft
8 drive valve plate 7 to rotate the unlatching that can realize butterfly valve to the direction vertical with the cross section of flowing hole,
As shown in Figure 4.It is believed that valve plate 7 time valve plate 7 is in the direction parallel with the cross section of flowing hole
The anglec of rotation is 0 °, when valve plate 7 is in the direction vertical with the cross section of flowing hole it is believed that valve
The anglec of rotation of plate 7 is 90 °.Valve plate 7 butterfly valve during 0 ° of rotation is to 90 ° is gradually opened
Until fully opening, and then realization is by the regulation of the fluid flow of butterfly valve.
The operating side of valve shaft 8 can be provided directly with rotary handle, it is also possible to passes through effort-saving mechanism.This
In butterfly valve disclosed in embodiment, the operating side of valve shaft 8 can be provided with worm-and-wheel gear 13, worm gear
Worm mechanism 13 is used for driving valve shaft 8 to rotate.Concrete, on worm-and-wheel gear 13 drive shaft
It is connected with valve shaft 8 by woodruff key 12.
Preferably, valve plate 7 is provided with connection chamber, and valve shaft 8 is arranged in connection chamber, valve plate 7 and valve shaft
8 be detachably fixed by pin connected.When valve plate 7 changed by needs, it is only necessary to pin is disassembled,
Valve plate 7 can be taken out from flowing hole after detaching valve shaft 8.
In order to improve the impact resistance of valve plate 7, wear resistance further, it is preferred that the table of valve plate 7
Mask has nickel coating.
In butterfly valve disclosed in the present embodiment, bottom cover 3 is fixed on valve by hex bolts 2 and spring washer 1
Body 4.In order to improve the service life of butterfly valve, the top of valve shaft 8 and valve body 4 and worm-and-wheel gear
It is provided with lining between the shell of 13, between bottom and the valve body 4 of valve shaft 8, is also equipped with lining.
Concrete, as in figure 2 it is shown, the shell of the top of valve shaft 8 and valve body 4 and worm-and-wheel gear 13 it
Between be provided with short lining 11；It is provided with long bushing 5 between bottom and the valve body 4 of valve shaft 8.
Certainly, in order to ensure sealing, between the top of valve shaft 8 and valve body 4 and worm-and-wheel gear 13
O 10 can be respectively provided with.Certainly, between bottom and the valve body 4 of valve shaft 8, sealing can also be set
Structure, to guarantee the sealing of butterfly valve bottom.
Preferably, in the butterfly valve that the present embodiment provides, the cross section of flowing hole is circular, and valve plate 7 is
Discoid.Valve plate 7 is disc-shaped structure, can reduce fluid largely by resistance during butterfly valve.
In butterfly valve disclosed in this utility model embodiment, valve plate 7 seals bullet with the valve seat 6 of elastic construction
Property laminating, valve plate 7 extrudes valve seat 6 inwall and constitutes and seal structure, and then realizes two way seal, can carry
The sealability during closure of high butterfly valve.
Only by the way of explanation, describe some one exemplary embodiment of the present utility model above, need not put
Doubt, for those of ordinary skill in the art, in the case of without departing from spirit and scope of the present utility model,
By various different modes, described embodiment can be modified.Therefore, above-mentioned accompanying drawing and being described in
It is substantially illustrative, should not be construed as the restriction to this utility model claims.
Claims (8)
1. a butterfly valve, it is characterised in that include valve body, valve shaft, valve seat and valve plate；Wherein, institute
State valve body and be provided with flowing hole；Described valve seat is sheathed on the inwall of described flowing hole；Described valve shaft is successively
Through valve seat and described valve seat, and it is fixedly linked with described valve plate；Described valve plate is arranged at described mistake and flows
Hole, and coordinate with described valve base sealing；Described valve shaft is all rotatably assorted with described valve body and described valve seat
To drive described valve plate that the logical of flowing hole is closed；The material of described valve body and described valve plate is spheroidal graphite casting
Ferrum；Described valve seat is elastic material, and with described valve plate elastic fit.
2. butterfly valve as claimed in claim 1, it is characterised in that the operating side of described valve shaft is provided with
Worm and gear drive mechanism；Described worm-and-wheel gear is used for driving described valve shaft to rotate.
3. butterfly valve as claimed in claim 2, it is characterised in that the top of described valve shaft and described valve
Between the shell of body and described worm-and-wheel gear, and it of the bottom of described valve shaft and described valve body
Between be provided with lining.
4. butterfly valve as claimed in claim 1, it is characterised in that described valve plate is provided with connection chamber,
Described valve shaft is arranged in described connection chamber, and is fixedly linked by pin.
5. butterfly valve as claimed in claim 1, it is characterised in that the cross section of described flowing hole is circle
Shape, described valve plate is discoid.
6. butterfly valve as claimed in claim 1, it is characterised in that described valve seat is made up of quality of rubber materials.
7. butterfly valve as claimed in claim 1, it is characterised in that the surface of described valve plate has nickel plating
Layer.
8. the butterfly valve as described in any one in claim 1-7, it is characterised in that described valve seat
Material is nitrile rubber or ethylene propylene diene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022202.0U CN205745353U (en) | 2016-01-11 | 2016-01-11 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022202.0U CN205745353U (en) | 2016-01-11 | 2016-01-11 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205745353U true CN205745353U (en) | 2016-11-30 |
Family
ID=57388811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620022202.0U Expired - Fee Related CN205745353U (en) | 2016-01-11 | 2016-01-11 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205745353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701736A (en) * | 2017-10-25 | 2018-02-16 | 鞍山拜尔自控有限公司 | Worm gear reducer butterfly valve governor motion |
-
2016
- 2016-01-11 CN CN201620022202.0U patent/CN205745353U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701736A (en) * | 2017-10-25 | 2018-02-16 | 鞍山拜尔自控有限公司 | Worm gear reducer butterfly valve governor motion |
| CN107701736B (en) * | 2017-10-25 | 2024-04-12 | 鞍山拜尔自控有限公司 | Worm gear speed reducing butterfly valve regulating mechanism |
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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: 20161130 Termination date: 20190111 |