CN207261679U - A kind of high stability butterfly valve - Google Patents
A kind of high stability butterfly valve Download PDFInfo
- Publication number
- CN207261679U CN207261679U CN201721136302.7U CN201721136302U CN207261679U CN 207261679 U CN207261679 U CN 207261679U CN 201721136302 U CN201721136302 U CN 201721136302U CN 207261679 U CN207261679 U CN 207261679U
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- CN
- China
- Prior art keywords
- valve
- valve body
- butterfly
- axle sleeve
- screw
- 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 high stability butterfly valve,Belong to valve technology field,Its technical solution is as follows,Including valve body,It is connected to the butterfly plate of valve inner,It is connected to the upper valve axle sleeve of butterfly plate upper end and the lower valve axle sleeve of lower end,The valve rod being plugged on inside upper valve axle sleeve,It is connected to the handle of valve rod upper end,The lower valve axle sleeve is fitted in the lower end of valve body,The valve body lower end is equipped with threaded hole,Threaded hole and lower valve axle sleeve on the valve body is concentric,A screw is connected with the threaded hole,The screw includes nail head,Threaded portion,Plug division,Head of a nail portion,The threaded portion is connected on threaded hole,The nail head and plug division are inserted into lower valve axle sleeve,It instead of the form of original lower valve shaft and valve body grafting,Reduce the gap between valve body and lower valve shaft,Make lower valve shaft have connect between valve body it is closer,So as to reach the effect for improving butterfly valve overall stability.
Description
Technical field
Valve technology field is the utility model is related to, more particularly to a kind of high stability butterfly valve.
Background technology
Butterfly valve is a kind of regulating valve simple in structure, is mainly made of valve body, valve rod and butterfly plate, available for control water, is steamed
The flowing of all kinds fluid such as vapour, mud, oil product, main on pipeline to play a part of to cut off and throttle, butterfly valve is to utilize butterfly
Plate reaches a kind of valve of opening and closing around valve shaft rotation.
At present, the Chinese patent of Publication No. CN103821953A discloses a kind of butterfly valve, which includes valve body, valve rod
And butterfly plate, valve inner are fixed with valve rod, valve rod upper end is cased with Upper shaft sleeve, and valve rod lower end is cased with Lower shaft sleeve, and Upper shaft sleeve lower end is consolidated
Surely have a stent, have sealing surface on the inside of valve body, be fixed with packing ring on the inside of sealing surface, butterfly plate is fixed on the outside of valve rod, butterfly plate and
Valve body is flexibly connected, and is fixed with sealing ring on the outside of butterfly plate, Lower shaft sleeve lower end is fixed with lower cover；Although this butterfly valve does sealing
More preferable, but gap between the valve body of butterfly valve and lower valve shaft or bigger, butterfly valve stability can be poor during use.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of high stability butterfly valve, it has
The advantages of having good stability.
To achieve the above object, the utility model provides following technical solution：A kind of high stability butterfly valve, including valve
Body, the butterfly plate for being connected to valve inner, the upper valve axle sleeve for being connected to butterfly plate upper end and the lower valve axle sleeve of lower end, be plugged on valve shaft
Valve rod inside set, be connected to the handle of valve rod upper end, and the lower valve axle sleeve is fitted in the lower end of valve body, and the valve body lower end is set
There is a threaded hole, the threaded hole and lower valve axle sleeve on the valve body are concentric, and a screw, the spiral shell are connected with the threaded hole
Nail includes nail head, plug division, threaded portion, head of a nail portion successively, and the threaded portion is connected on threaded hole, the nail head
It is inserted into plug division in lower valve axle sleeve.
By using above-mentioned technical proposal, the threaded portion of screw is set to be connected on valve body, and make plug division and ailhead
Portion is inserted into lower valve axle sleeve, instead of the form of grafting between original lower valve shaft and valve body, reduce screw and valve body it
Between gap, screw is connected with valve body even closer, also more stablize, so as to increase the stability of butterfly valve entirety.
Further, the length of the threaded portion and the length of threaded hole are identical.
By using above-mentioned technical proposal, if threaded portion is long threaded portion can be made to produce larger friction with lower valve axle sleeve,
The rotation that lower valve shaft is sleeved on screw is influenced, can make what is connected between screw and valve body to be not sufficiently stable if threaded portion is too short, so that
It cannot be guaranteed that the stability of butterfly valve.
Further, the nail head top is equipped with fillet, and the diameter of nail head is less than the diameter of plug division, the nail
The position that head and plug division connect is equipped with chamfering.
By using above-mentioned technical proposal, screw makes have the power for tending to center being inserted into lower valve axle sleeve, screw is more held
Easily it is inserted into lower valve axle sleeve, while the setting of chamfering and fillet avoids the end of screw lower valve axle sleeve is caused to damage on screw
It is bad.
Further, a rubber sheet gasket is cased with the head of a nail portion.
By using above-mentioned technical proposal, when screw-driving is when on valve body, screw and valve are strengthened using rubber sheet gasket
Leakproofness between body, avoids water from leaking out from there, while sealing strip ensures that water cannot be dropped on the screw thread of screw, avoids spiral shell
Nail gets rusty and cannot be screwed down.
Further, the screw thread of the threaded portion is outwardly, and the end of the threaded portion is socketed with sealing strip.
By using above-mentioned technical proposal, avoid water from flowing on the screw thread of threaded portion, screw thread is got rusty and cause screw not
It can turn from valve body.
Further, the section of the sealing strip is the structure of parallelogram.
By using above-mentioned technical proposal, one end of sealing strip can be inserted into the thread pitch of screw, and the other end is stuck in
On valve body, make leakproofness herein better.
Further, the valve inner is equipped with two semicircle baffle rings, two baffle rings and when being in closure state
Butterfly plate fit closely.
By using above-mentioned technical proposal, when butterfly valve completely closes, butterfly plate and two baffle rings just complete close proximity,
Avoid butterfly plate degree of rotation excessive and make to produce gap between butterfly plate and valve body, if while between butterfly plate and valve body sealing be damaged
Make, a sealing structure can be formed between butterfly plate and baffle ring, ensure that water cannot flow out from there.
Further, sealing ring is connected on the butterfly plate, the sealing ring is socketed on butterfly plate completely.
By using above-mentioned technical proposal, the leakproofness between butterfly plate and valve body is enhanced, since sealing ring is socketed in butterfly
On plate, make sealing ring be not easy because usage time is long slide into other positions influence leakproofness.
Compared with prior art, the utility model has the advantages that：
1. improve the stability of whole butterfly valve；
2. enhance the leakproofness between butterfly plate and valve body；
3. avoiding the problem that valve rod degree of rotation is excessive causes to produce gap between butterfly plate and valve body.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present embodiment；
Fig. 2 is the front view of the present embodiment；
Fig. 3 is that the butterfly valve of the present embodiment closes schematic diagram；
Fig. 4 is the sectional view of the present embodiment；
Fig. 5 is the A enlarged drawings of Fig. 4；
Fig. 6 is the screw schematic diagram of the present embodiment.
In figure, 1, valve body；2nd, lower valve axle sleeve；3rd, screw；31st, nail head；32nd, threaded portion；33rd, plug division；34th, the head of a nail
Portion；35th, fillet；36th, chamfering；4th, threaded hole；5th, rubber sheet gasket；6th, upper valve axle sleeve；7th, valve rod；8th, butterfly plate；9th, baffle ring；10th, it is close
Strip of paper used for sealing；11st, handle；12nd, sealing ring.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of high stability butterfly valve, as shown in Fig. 1,4,6, which includes valve body 1, lower valve axle sleeve 2, screw 3, threaded hole
4th, butterfly plate 8, upper valve axle sleeve 6, valve rod 7 and handle 11, wherein valve body 1 are a columnar structure, are connected in the inside of valve body 1
There is the butterfly plate 8 to fit with valve body 1, the lower end of butterfly plate 8 is equipped with lower valve axle sleeve 2, and threaded hole 4 is located at the lower end of valve body 1, and screw thread
Hole 4 and lower valve axle sleeve 2 are concentric, and a screw 3 is connected with threaded hole 4, and screw 3 includes nail head 31, threaded portion 32, inserts
Socket part 33, head of a nail portion 34, wherein threaded portion 32 are threaded in threaded hole 4, and nail head 31 is inserted into lower valve with plug division 33
In axle sleeve 2, the diameter of nail head 31 is less than the diameter of plug division 33, the threaded hole that screw 3 can so be tightened on valve body 1
When in 4, screw 3 has the power for tending to center, so that screw 3 can be very good to be inserted into lower valve axle sleeve 2, due to nail head 31
There is no screw thread with plug division 33, lower valve axle sleeve 2 is rotated on screw 3 more smooth, simultaneously because the threaded portion 32 of screw 3
It is connected through a screw thread and is fixed on valve body 1, reduce the gap between valve body 1 and screw 3, makes the connection of screw 3 and valve body 1 more
Add stabilization, so as to reach the effect for improving butterfly valve overall stability；In addition a rubber pad is cased with the head of a nail portion 34 of screw 3
Piece 5, when tightening screw 3, rubber sheet gasket 5 can further enhance the leakproofness of valve body 1 and screw 3, on the top of threaded portion 32
End is equipped with the sealing strip 10 that section is parallelogram, one end of sealing strip 10 is inserted into screw thread when tightening screw 3, separately
One end is clamped on valve body 1, prevents the screw thread on threaded portion 33 is contacted with water from excessively getting rusty and cannot turn.
As shown in Fig. 1,4, upper valve axle sleeve 6 is located at the upper end of butterfly plate 8, valve rod 7 be plugged in upper valve axle sleeve 6 and valve rod 7 with
It is that upper valve axle sleeve 6 is connected, by rotation valve rod 7 butterfly plate 8 can be driven to rotate, a handle is connected with the upper end of valve rod 7
Hand 11, can facilitate the rotation of butterfly plate 8 by handle 11, the diameter of butterfly plate 8 is identical with the internal diameter of valve body 1, is closed when by butterfly plate 8
When can be very good stop water flowed through from valve body 1, be socketed with butterfly plate 8 one with 8 shape of butterfly plate just as sealing ring 12, guarantor
Demonstrate,prove the butterfly plate 8 when closing of butterfly plate 8 and by sealing ring 12 and 1 close proximity of valve body, enhance the leakproofness of valve body 1.
As shown in Figure 3,4, valve body 1 is internally provided with two semicircle baffle rings 9, and semicircle baffle ring 9 is fixedly connected on valve body 1
On inner wall, two baffle rings 9 are fitted closely with the butterfly plate 8 under closure state, when butterfly plate 8 is rotated closing, the two of butterfly plate 8
End is fitted closely with the two baffle rings 9 respectively, avoids making between butterfly plate 8 and valve body 1 because degree of rotation is excessive or too small
Gap is produced, while butterfly plate 8 also form the structure of a sealing with baffle ring 9, further enhance between butterfly plate 8 and valve body 1
Leakproofness.
As shown in Fig. 1,3,4, during using this butterfly valve, rubber sheet gasket 5 is placed into the head of a nail portion 34 of screw 3 first,
Sealing strip 10 is put into the top of threaded portion 32, then screw 3 is inserted into threaded hole 4, makes screw division 31 and plug division 33
It extend into lower valve axle sleeve 2, threaded portion 3 is tightened in threaded hole 4 afterwards, screw 3 is completely fixed on valve body 1, reduces
Gap between valve body 1 and screw 3, enhances the stability of butterfly valve, since the diameter of screw division 31 is less than plug division 33
Diameter, makes screw 3 have the power for tending to center in the insertion process of screw 3, screw 3 is preferably inserted into lower valve axle sleeve 2
In, while rubber sheet gasket 5 is fitted on valve body 1, ensure that sealing herein；Rotate valve rod 7 by rotating handles 11 afterwards,
So as to drive butterfly plate 8 to rotate, when butterfly plate 8 is turned to contacted with valve interior wall when, butterfly plate 8 and be fixed on 1 inner wall of valve body
Baffle ring 9 be in close contact, avoid degree of rotation from crossing between ambassador's butterfly plate 8 and valve body and produce gap, prevent water or other fluids from
Flowed through from butterfly valve, in addition sealing ring 12 is installed on butterfly plate 8, make that butterfly plate 8 contacts with valve body 1 is more good, herein close
Envelope property is also more superior；Handle 11, which is reversely rotated, can drive butterfly plate 8 to rotate backward, and make to produce between butterfly plate 8 and valve body 1 empty
Gap, at this moment water or other fluids can be flowed through between valve body 1, by control the gap between butterfly plate 8 and valve body 1 so as to
The size of current outflow is controlled, so swing handle 11 adjusts the size of current.
This specific embodiment is only explanation to the utility model, it is not the limitation to the utility model, ability
Field technique personnel as needed can make the present embodiment the modification of no creative contribution after this specification is read, but
As long as all protected in the right of the utility model be subject to Patent Law.
Claims (8)
1. a kind of high stability butterfly valve, including valve body（1）, be connected to valve body（1）Internal butterfly plate（8）, be connected to butterfly plate（8）On
The upper valve axle sleeve at end（6）With the lower valve axle sleeve of lower end（2）, be plugged on upper valve axle sleeve（6）Internal valve rod（7）, be connected to valve rod
The handle of upper end（11）, it is characterized in that：The lower valve axle sleeve（2）It is fitted in valve body（1）Lower end, the valve body（1）Lower end is set
There is threaded hole（4）, the valve body（1）On threaded hole（4）With lower valve axle sleeve（2）It is concentric, the threaded hole（4）On be connected with
One screw（3）, the screw（3）Include nail head successively（31）, plug division（33）, threaded portion（32）, head of a nail portion（34）, institute
State threaded portion（32）It is threaded in threaded hole（4）On, the nail head（31）And plug division（33）It is inserted into lower valve axle sleeve（2）
In.
2. a kind of high stability butterfly valve according to claim 1, it is characterized in that：The threaded portion（32）Length and screw thread
Hole（4）Length it is identical.
3. a kind of high stability butterfly valve according to claim 2, it is characterized in that：The nail head（31）Top is equipped with fillet
（35）, and nail head（31）Diameter be less than plug division（33）Diameter, the nail head（31）And plug division（33）Connect
Position is equipped with chamfering（36）.
4. a kind of high stability butterfly valve according to claim 3, it is characterized in that：The head of a nail portion（34）On be cased with a rubber
Glue gasket（5）.
5. a kind of high stability butterfly valve according to claim 4, it is characterized in that：The threaded portion（32）Screw thread convex
Go out, the threaded portion（32）End be socketed with sealing strip（10）.
6. a kind of high stability butterfly valve according to claim 5, it is characterized in that：The sealing strip（10）Section to be parallel
The structure of quadrangle.
7. a kind of high stability butterfly valve according to claim 6, it is characterized in that：The valve body（1）It is internally provided with two and half
Circular collar（9）, two baffle rings（9）Butterfly plate during with closure state（8）Fit closely.
8. a kind of high stability butterfly valve according to claim 7, it is characterized in that：The butterfly plate（8）Upper connection sealing ring
（12）, the sealing ring（12）Butterfly plate is socketed in completely（8）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136302.7U CN207261679U (en) | 2017-09-05 | 2017-09-05 | A kind of high stability butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136302.7U CN207261679U (en) | 2017-09-05 | 2017-09-05 | A kind of high stability butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261679U true CN207261679U (en) | 2018-04-20 |
Family
ID=61923889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721136302.7U Expired - Fee Related CN207261679U (en) | 2017-09-05 | 2017-09-05 | A kind of high stability butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207261679U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520483A (en) * | 2019-06-13 | 2020-08-11 | 江苏圣泰阀门有限公司 | Plug valve with split type plug core structure |
-
2017
- 2017-09-05 CN CN201721136302.7U patent/CN207261679U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520483A (en) * | 2019-06-13 | 2020-08-11 | 江苏圣泰阀门有限公司 | Plug valve with split type plug core structure |
| CN111520483B (en) * | 2019-06-13 | 2021-09-17 | 江苏圣泰阀门有限公司 | Plug valve with split type plug core structure |
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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: 20180420 Termination date: 20190905 |