CN206723468U - A kind of centering type butterfly valve - Google Patents
A kind of centering type butterfly valve Download PDFInfo
- Publication number
- CN206723468U CN206723468U CN201720463070.XU CN201720463070U CN206723468U CN 206723468 U CN206723468 U CN 206723468U CN 201720463070 U CN201720463070 U CN 201720463070U CN 206723468 U CN206723468 U CN 206723468U
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- China
- Prior art keywords
- valve
- butterfly plate
- valve body
- ring
- stainless steel
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Abstract
The utility model discloses a kind of centering type butterfly valve, including valve body, the butterfly plate and valve shaft that are placed in valve body, valve shaft is loaded on valve body, valve shaft in valve body is rigidly connected with butterfly plate, valve seals are fixed with by uniform screw on the inner periphery of the valve body, valve body vulcanised rubber layer is compounded with the valve interior wall of valve seals both sides, butterfly plate vulcanised rubber layer is compounded with the plate face of the butterfly plate both sides, the valve seals are stainless steel sealing ring；Butterfly plate rubber seal is equipped with by stainless steel blocker ring and the stainless steel pressure ring of both sides on the excircle of the butterfly plate, stainless steel blocker ring is by the way that on excircle of first holding screw loaded on butterfly plate, stainless steel pressure ring passes through on excircle of the trip bolt loaded on butterfly plate.The utility model manufacturing cost is relatively low, while has good corrosion resistance.
Description
Technical field
A kind of butterfly valve is the utility model is related to, concretely relates to a kind of centering type butterfly valve.
Background technology
In existing butterfly valve technology, the anti-corrosion measure for medium is mostly using valve line with rubber or uses all steel material valve
Door.In switching process, sealing pair combines existing butterfly valve valve all the time, can not realize it is completely disengaged, valve sealing face because
Long-term controlled valve and wear, service life is short, and sealing reliability is poor；Part is bulk sulfided hard using being sealed into for eccentric-butterfly-valve
Rubber, its erosion resistibility is poor, and can not be safeguarded after ring wear can only integral replacing valve；Using all steel material valve
Door, antiscour, corrosion resistance are strong, easy to maintenance, but cost is the several times of common butterfly valve, can not realize all-round popularization.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of centering type butterfly valve, and the utility model has good
Good corrosion resistance, while manufacturing cost is relatively low.
In order to solve the above technical problems, centering type butterfly valve of the present utility model, including valve body, the butterfly that is placed in valve body
Plate and valve shaft, loaded on valve body, the valve shaft in valve body is rigidly connected valve shaft with butterfly plate, passes through on the inner periphery of the valve body
Uniform screw is fixed with valve seals, and valve body vulcanization rubber is compounded with the valve interior wall of valve seals both sides
Layer, butterfly plate vulcanised rubber layer is compounded with the plate face of the butterfly plate both sides, the valve seals are stainless steel sealing ring；Institute
State and butterfly plate rubber seal, stainless steel blocker ring are equipped with by stainless steel blocker ring and the stainless steel pressure ring of both sides on the excircle of butterfly plate
By the way that on excircle of first holding screw loaded on butterfly plate, stainless steel pressure ring passes through on excircle of the trip bolt loaded on butterfly plate.
Using the centering type butterfly valve of said structure, only it is valve seals and is arranged on the gear of butterfly plate sealing ring both sides
Ring and pressure ring are stainless steel, and manufacturing cost is relatively low, is compounded with vulcanised rubber layer on valve interior wall and butterfly plate, makes
The position that contact with fluid media (medium) of the utility model except rubber layer is exactly stainless steel, with corrosion-resistant energy well
Power.
As improvement of the present utility model, the position that the valve body inner periphery is engaged with valve shaft is machined with valve body annular
Groove, valve body annular groove by the second holding screw built with being installed on valve body inner peripheral wall, formed between valve body and valve shaft
First sealing stainless steel pressure ring of sealing, the first sealing stainless steel pressure ring are provided with the first sealing annular groove close to the side of valve shaft,
First sealing annular groove is built with the first O-ring seals；The position that the butterfly plate excircle is engaged with valve shaft is machined with butterfly plate
Annular groove, butterfly plate annular groove are installed on butterfly plate outer circle wall, between butterfly plate and valve shaft built with by the 3rd holding screw
The second sealing stainless steel pressure ring of sealing is formed, the second sealing stainless steel pressure ring is provided with the second sealing annular close to the side of valve shaft
Groove, the second sealing annular groove is built with the second O-ring seals.
Set respectively in the position that the valve body inner periphery is engaged with valve shaft and the position that butterfly plate excircle matches with valve shaft
First, second sealing stainless steel pressure ring is put, can effectively prevent fluid media (medium) from passing through between valve body and valve shaft, butterfly plate and valve shaft
Fit clearance is entered in valve shaft, to corrosion caused by butterfly plate, valve body and valve shaft, further enhancing entirety of the present utility model
Anti-corrosion capability.
As further improvement of the utility model, position that the valve seals both sides are in contact with the valve interior wall
Valve seal ring annular groove is installed, the bottom of the first sealing stainless steel pressure ring offers the first sealed groove, described
Valve body vulcanised rubber layer is extended respectively in the first sealed groove and valve seal ring annular groove；The second sealing stainless steel
The second sealed groove is offered at the top of pressure ring, the stainless steel blocker ring both sides are close to the position of butterfly plate excircle formed with baffle ring
Groove, the butterfly plate vulcanised rubber layer are extended respectively in the second sealed groove and baffle ring groove.
Valve body vulcanised rubber layer in the utility model extends respectively to the first sealed groove and valve seals annular is recessed
In groove, butterfly plate vulcanised rubber layer is extended respectively in the second sealed groove and baffle ring groove, enhances the anti-impact of vulcanised rubber layer
Brush ability, sealed reliable performance is improved, extend service life of the present utility model.
Further improved as the utility model, the side wall positioned at the valve seals equipped with screw side is provided with
Annular vent groove, the internal thread hole for installing screw are located in the annular vent groove, and the excircle of valve seals is provided with outer
Rounded corner, the groove depth of the length of side of outer rounded corner and the annular vent groove greatly to equal, the outer rounded corner of valve seals with
Formed with annular space between valve interior wall, it is rotary with valve outer wall deeply to the bleed screw of the annular space, it is described adjacent
Internal thread hole between be provided with the groove for linking up annular vent groove and outer rounded corner.
After said structure, valve body first can remove bleed screw when vulcanizing, the sealed groove of valve seals first
It is discharged with the gas in the internal thread hole of valve seal ring annular groove and installing screw, the row of being loaded on after vulcanization cools down
Gas plug screw is sealed, and is vented when passing through vulcanization, and vulcanization of rubber layer and the excessive gas of valve body surface are discharged, ensure that sulfuric horizon
It is smooth, the erosion resistibility of vulcanised rubber layer is further increased, while also extend the service life of vulcanised rubber layer.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is a kind of main cross section structure diagram of centering type butterfly valve of the utility model.
Fig. 2 is the enlarged diagram of structure at I in Fig. 1.
Fig. 3 is the enlarged diagram of structure at II in Fig. 2.
Fig. 4 is to get rid of Fig. 3 after the first O-ring seals.
Fig. 5 is to get rid of Fig. 3 after the first sealing stainless steel pressure ring.
Fig. 6 is the enlarged diagram of structure at III in Fig. 2.
Fig. 7 is to get rid of Fig. 6 after the second O-ring seals.
Fig. 8 is to get rid of Fig. 6 after the second sealing stainless steel pressure ring.
Fig. 9 is Fig. 2 C direction views, shows the structure of valve seals when side is seen.
Figure 10 is the enlarged diagram of structure at IV in Fig. 9.
Figure 11 is the section view enlarged diagram of the line A-A along Figure 10.
Figure 12 is the section view enlarged diagram of the line B-B along Figure 10.
Figure 13 is the mplifying structure schematic diagram of the stainless steel blocker ring in a kind of centering type butterfly valve of the utility model.
Figure 14 is the enlarged diagram of structure at V in Fig. 2.
Embodiment
Referring to Fig. 1, Fig. 2, centering type butterfly valve of the present utility model, including valve body 100, the butterfly plate that is placed in valve body
200 and valve shaft 300, valve shaft 300 is loaded on valve body 100, and the valve shaft 300 in valve body is rigidly connected with butterfly plate 200, the valve
Valve seals 102 are fixed with by uniform screw 101 on the inner periphery of body 100, the valve positioned at the both sides of valve seals 102
Valve body vulcanised rubber layer 103 is compounded with the inwall of body 100, butterfly plate vulcanization rubber is compounded with the plate face of the both sides of butterfly plate 200
Glue-line 201, the valve seals 102 are stainless steel sealing ring；Pass through the stainless steel of both sides on the excircle of the butterfly plate 200
Baffle ring 202 and stainless steel pressure ring 203 are equipped with butterfly plate rubber seal 204, and stainless steel blocker ring 202 passes through the first holding screw 205
On excircle loaded on butterfly plate 200, stainless steel pressure ring 203 passes through on excircle of the trip bolt 206 loaded on butterfly plate 200.
Referring back to Fig. 2-Fig. 8, the inner periphery of valve body 100 is machined with valve body annular groove with the position that valve shaft 300 is engaged
104, valve body annular groove 104 built be installed in by the second holding screw 105 on the inner peripheral wall of valve body 100, in the and of valve body 100
The first sealing stainless steel pressure ring 106 of sealing is formed between valve shaft 300, the first sealing stainless steel pressure ring 106 is close to valve shaft 300
Side is provided with the first sealing annular groove 107, and the first sealing annular groove 107 is built with the first O-ring seals 108；The butterfly plate 200
Excircle is machined with butterfly plate annular groove 207 with the position that valve shaft 300 is engaged, and butterfly plate annular groove 207 is built with tight by the 3rd
Determine screw 208 be installed on the outer circle wall of butterfly plate 200, formed between butterfly plate 200 and valve shaft 300 sealing second sealing it is stainless
Steel pressure ring 209, the second sealing stainless steel pressure ring 209 are provided with the second sealing annular groove 210 close to the side of valve shaft 300, and second is close
Annular groove 210 is sealed built with the second O-ring seals 211.
Referring then to Fig. 3-Figure 13, position that the both sides of valve seals 102 are in contact with the inwall of valve body 100
Provided with valve seal ring annular groove 109,110, it is recessed that the described first bottom for sealing stainless steel pressure ring 106 offers the first sealing
Groove 111, the valve body vulcanised rubber layer 103 extend respectively to the first sealed groove 111 and valve seal ring annular groove 109,
In 110；The top of the second sealing stainless steel pressure ring 209 offers the second sealed groove 212, the stainless steel blocker ring 202
Both sides extend respectively to second close to the position of butterfly plate excircle formed with baffle ring groove 213, the butterfly plate vulcanised rubber layer 201
In sealed groove 212 and baffle ring groove 213.
Referring finally to Fig. 9-Figure 14, the side wall positioned at the valve seals 102 equipped with the side of screw 101 is provided with annular
Exhaust groove 112, the internal thread hole 113 of installing screw 101 is located in the annular vent groove 112, outside valve seals 102
Circumference is provided with outer rounded corner 114, and the length of side of outer rounded corner 114 is with the groove depth of the annular vent groove 112 greatly to equal, valve body
Formed with annular space 115 between the outer rounded corner 114 and the inwall of valve body 100 of sealing ring 102, depth is rotary with the outer wall of valve body 100
Enter to the bleed screw 116 of the annular space 115, be provided between the adjacent internal thread hole 113 and link up annular vent groove
112 and the groove 117 of outer rounded corner 114.
Claims (4)
1. a kind of centering type butterfly valve, including valve body（100）, the butterfly plate that is placed in valve body（200）And valve shaft（300）, valve shaft
（300）Loaded on valve body（100）On, the valve shaft in valve body（300）With butterfly plate（200）It is rigidly connected, the valve body（100）'s
Pass through uniform screw on inner periphery（101）It is fixed with valve seals（102）, positioned at valve seals（102）The valve of both sides
Body（100）Valve body vulcanised rubber layer is compounded with inwall（103）, the butterfly plate（200）On be compounded with butterfly plate vulcanised rubber layer
（201）, it is characterised in that：The valve seals（102）For stainless steel sealing ring；The butterfly plate（200）Excircle on lead to
Cross the stainless steel blocker ring of both sides（202）With stainless steel pressure ring（203）Equipped with butterfly plate rubber seal（204）, stainless steel blocker ring
（202）Pass through the first holding screw（205）Loaded on butterfly plate（200）Excircle on, stainless steel pressure ring（203）Pass through trip bolt
（206）Loaded on butterfly plate（200）Excircle on.
2. centering type butterfly valve as claimed in claim 1, it is characterised in that：The valve body（100）Inner periphery and valve shaft
（300）The position being engaged is machined with valve body annular groove（104）, valve body annular groove（104）Built with passing through the second holding screw
（105）It is installed in valve body（100）On inner peripheral wall, in valve body（100）And valve shaft（300）Between formed sealing first sealing not
Become rusty steel pressure ring（106）, the first sealing stainless steel pressure ring（106）Close to valve shaft（300）Side be provided with first sealing annular groove
（107）, the first sealing annular groove（107）Built with the first O-ring seals（108）；The butterfly plate（200）Excircle and valve shaft
（300）The position being engaged is machined with butterfly plate annular groove（207）, butterfly plate annular groove（207）Built with passing through the 3rd holding screw
（208）It is installed in butterfly plate（200）On outer circle wall, in butterfly plate（200）And valve shaft（300）Between formed sealing second sealing not
Become rusty steel pressure ring（209）, the second sealing stainless steel pressure ring（209）Close to valve shaft（300）Side be provided with second sealing annular groove
（210）, the second sealing annular groove（210）Built with the second O-ring seals（211）.
3. centering type butterfly valve as claimed in claim 2, it is characterised in that：The valve seals（102）Both sides and institute
State valve body（100）The position that inwall is in contact is provided with valve seal ring annular groove（109、110）, the first sealing stainless steel
Pressure ring（106）Bottom offer the first sealed groove（111）, the valve body vulcanised rubber layer（103）Extend respectively to first
Sealed groove（111）With valve seal ring annular groove（109、110）It is interior；The second sealing stainless steel pressure ring（209）Top
Portion offers the second sealed groove（212）, the stainless steel blocker ring（202）Both sides are close to the position of butterfly plate excircle formed with gear
Ring groove（213）, the butterfly plate vulcanised rubber layer（201）Extend respectively to the second sealed groove（212）With baffle ring groove（213）
It is interior.
4. centering type butterfly valve as claimed in claim 3, it is characterised in that：Positioned at equipped with screw（101）The valve body of side
Sealing ring（102）Side wall be provided with annular vent groove（112）, install screw（101）Internal thread hole（113）Positioned at the ring
Shape exhaust groove（112）It is interior, valve seals（102）Excircle be provided with outer rounded corner（114）, outer rounded corner（114）Side
The long and annular vent groove（112）Groove depth greatly to equal, valve seals（102）Outer rounded corner（114）With valve body
（100）Formed with annular space between inwall（115）, valve body（100）It is rotary with outer wall deeply to the annular space（115）Row
Gas plug screw（116）, the adjacent internal thread hole（113）Between be provided with link up annular vent groove（112）With outer rounded corner
（114）Groove（117）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720463070.XU CN206723468U (en) | 2017-04-28 | 2017-04-28 | A kind of centering type butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720463070.XU CN206723468U (en) | 2017-04-28 | 2017-04-28 | A kind of centering type butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206723468U true CN206723468U (en) | 2017-12-08 |
Family
ID=60508210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720463070.XU Expired - Fee Related CN206723468U (en) | 2017-04-28 | 2017-04-28 | A kind of centering type butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206723468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013546A (en) * | 2022-07-14 | 2022-09-06 | 良工阀门集团有限公司 | Two-way seal structure and butterfly valve |
-
2017
- 2017-04-28 CN CN201720463070.XU patent/CN206723468U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013546A (en) * | 2022-07-14 | 2022-09-06 | 良工阀门集团有限公司 | Two-way seal structure and butterfly valve |
| CN115013546B (en) * | 2022-07-14 | 2023-03-14 | 良工阀门集团有限公司 | Two-way seal structure and butterfly valve |
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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: 20171208 |