CN207064664U - A kind of wafer type three eccentricity hard seal butterfly valve - Google Patents
A kind of wafer type three eccentricity hard seal butterfly valve Download PDFInfo
- Publication number
- CN207064664U CN207064664U CN201720980568.3U CN201720980568U CN207064664U CN 207064664 U CN207064664 U CN 207064664U CN 201720980568 U CN201720980568 U CN 201720980568U CN 207064664 U CN207064664 U CN 207064664U
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly
- plate
- ring
- metal
- 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
Links
Landscapes
- Lift Valve (AREA)
Abstract
It the utility model is related to a kind of wafer type three eccentricity hard seal butterfly valve, valve rod including valve body, on valve body, the butterfly plate on valve rod, movable valve seat is provided between the butterfly plate outer circumferential side and valve interior wall, and butterfly plate is provided with metal o-ring with the close position of movable valve seat, and the metal o-ring is fixed on butterfly plate by pressing plate with soket head cap screw；The movable valve seat it is cylindrical in main pressure-bearing direction while be provided with seal groove, mounting O-shaped rings in groove；The butterfly plate, pressing plate, metal o-ring, O-ring collectively constitute dish plate sealing pair sub-assembly.Valve body sets position limiting structure in main pressure-bearing direction and movable valve seat end thereof contacts face, ensures that movable valve seat will not produce a large amount of Influence of Displacement sealings during main pressure-bearing pressuring direction, so as to ensure main pressure-bearing direction sealing, good sealing effect.
Description
Technical field
Valve field is the utility model is related to, especially a kind of wafer type three eccentricity hard seal butterfly valve.
Background technology
Three-eccentric-butterfly-valve, be widely used in medium temperature≤425 DEG C metallurgy, electric power, petrochemical industry and plumbing and
On the industrial pipelines such as urban construction, make adjustments flow and carry cutout body use.Butterfly plate does not scrape valve seat, valve rod during valve switch
Moment of torsion is transferred directly to sealing surface, that is butterfly plate and valve base chamber by butterfly plate and occurred, so as to preventing almost without friction phenomenon
The various unstabilities such as common chattering when opening common valve, the low open range internal cause friction for having eradicated valve because
Regulation and control caused by element are unable to phenomenon, have eradicated dead band (not sensing zone).Present three-eccentric-butterfly-valve is when in use, existing to ask
Topic is that the sealing between dish plate and valve seat is not good enough, and is easily worn.
Utility model content
The purpose of this utility model is to solve the defects of prior art is present, there is provided a kind of wafer type three eccentricity is firmly close
Sealing butterfly valve.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of wafer type three eccentricity hard seal butterfly valve, including valve body, the valve rod on valve body, on valve rod
Butterfly plate, movable valve seat, and butterfly plate and the close position of movable valve seat are provided between the butterfly plate outer circumferential side and valve interior wall
Metal o-ring is provided with, the metal o-ring is fixed on butterfly plate by pressing plate with soket head cap screw；The movable valve seat
It is cylindrical in main pressure-bearing direction while be provided with seal groove, mounting O-shaped rings in groove；The butterfly plate, pressing plate, metal o-ring, O-ring are common
With composition dish plate sealing pair sub-assembly；
The butterfly plate is fixed on valve rod with straight pin, and valve rod is connected by axle sleeve with valve body, and above axle sleeve is provided with and is arranged
Support on the outside of valve rod, is provided with worm gear drive mechanism, the end connection of worm gear drive mechanism and valve rod on support, and turbine passes
The side connection handwheel of motivation structure；
Worm gear drive mechanism includes the turbine being connected with handwheel, the connection that turbine passes through flat key and the end of valve rod.
A kind of above-mentioned wafer type three eccentricity hard seal butterfly valve, the bottom of the valve body are provided with bottom end cover, bottom end cover and valve
Packing ring is bolted between body.
A kind of above-mentioned wafer type three eccentricity hard seal butterfly valve, the metal o-ring are pyrographite plate.
A kind of above-mentioned wafer type three eccentricity hard seal butterfly valve, filler is provided with the port between the axle sleeve and valve rod,
Fixed above filler with gland.
The beneficial effects of the utility model are：The butterfly plate of the butterfly valve is provided with metal sealing with the close position of movable valve seat
Circle, the metal o-ring are fixed on butterfly plate by pressing plate with soket head cap screw；Movable valve seat is cylindrical in main pressure-bearing direction one
While being provided with seal groove, mounting O-shaped rings in groove, butterfly plate, pressing plate, metal o-ring, O-ring collectively constitute dish plate sealing secondary combination
Part, valve body set position limiting structure in main pressure-bearing direction and movable valve seat end thereof contacts face, ensure activity during main pressure-bearing pressuring direction
Valve seat will not produce a large amount of Influence of Displacement sealings, so as to ensure main pressure-bearing direction sealing, good sealing effect.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model；
Fig. 2 is schematic cross-section of the present utility model；
Fig. 3 is the A areas enlarged drawing in Fig. 2.
Embodiment
As shown in Figure 1 to Figure 3, a kind of wafer type three eccentricity hard seal butterfly valve, including valve body 1, the valve on valve body 1
Bar 2, the butterfly plate 3 on valve rod 2, movable valve seat 4, and butterfly plate 3 are provided between the outer circumferential side of butterfly plate 3 and the inwall of valve body 1
Close position is provided with metal o-ring 5 with movable valve seat 4, and metal o-ring 5 is fixed by pressing plate 7 with soket head cap screw 6
On butterfly plate 3；Movable valve seat 4 it is cylindrical in main pressure-bearing direction while be provided with seal groove, mounting O-shaped rings in groove；Butterfly plate 3, pressing plate 7,
Metal o-ring 5, O-ring collectively constitute dish plate sealing pair sub-assembly；
Butterfly plate 3 is fixed on valve rod 2 with straight pin 8, and valve rod 2 is connected by axle sleeve 9 with valve body 1, and the top of axle sleeve 9 is provided with set
The support 10 in the outside of valve rod 2 is located at, is connected over the mount 10 provided with worm gear drive mechanism, worm gear drive mechanism and the end of valve rod 2
Connect, the side connection handwheel 11 of worm gear drive mechanism 13；
Worm gear drive mechanism includes the turbine being connected with handwheel 11, the connection that turbine passes through flat key 12 and the end of valve rod 2.
Further, the bottom of valve body 1 is provided with bottom end cover 14, and packing ring 15 is solid by bolt 16 between bottom end cover 14 and valve body 1
It is fixed.
In the utility model, metal o-ring 5 is pyrographite plate, and filler is provided with the port between axle sleeve 9 and valve rod 2
17, the top gland 18 of filler 17 is fixed.
The butterfly plate 3 of the butterfly valve is provided with metal o-ring 5 with the close position of movable valve seat 4, and metal o-ring 5 passes through pressure
Plate 7 is fixed on butterfly plate 3 with soket head cap screw 6；Movable valve seat 4 it is cylindrical in main pressure-bearing direction while be provided with seal groove, pacify in groove
O-ring is filled, butterfly plate 3, pressing plate 7, metal o-ring 5, O-ring collectively constitute dish plate sealing pair sub-assembly, and valve body 1 is in main pressure-bearing side
Position limiting structure is set to the end thereof contacts face of movable valve seat 4, ensures that movable valve seat will not produce largely during main pressure-bearing pressuring direction
Influence of Displacement seals, so as to ensure main pressure-bearing direction sealing, good sealing effect.
The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply principle of the present utility model, the utility model also has respectively on the premise of the spirit and scope of the utility model is not departed from
Kind changes and improvements, these changes and improvements are both fallen within claimed the scope of the utility model.The requires of the utility model
Protection domain defined by appended claims and its equivalent.
Claims (4)
1. a kind of wafer type three eccentricity hard seal butterfly valve, including valve body, the valve rod on valve body, the butterfly on valve rod
Plate, it is characterised in that be provided with movable valve seat between the butterfly plate outer circumferential side and valve interior wall, and butterfly plate leans on movable valve seat
Near position is provided with metal o-ring, and the metal o-ring is fixed on butterfly plate by pressing plate with soket head cap screw；It is described
Movable valve seat it is cylindrical in main pressure-bearing direction while be provided with seal groove, mounting O-shaped rings in groove；The butterfly plate, pressing plate, metal sealing
Circle, O-ring collectively constitute dish plate sealing pair sub-assembly；
The butterfly plate is fixed on valve rod with straight pin, and valve rod is connected by axle sleeve with valve body, and above axle sleeve is provided with and is set in valve
Support on the outside of bar, worm gear drive mechanism, the end connection of worm gear drive mechanism and valve rod, worm gear drive machine are provided with support
The side connection handwheel of structure；
Worm gear drive mechanism includes the turbine being connected with handwheel, the connection that turbine passes through flat key and the end of valve rod.
A kind of 2. wafer type three eccentricity hard seal butterfly valve according to claim 1, it is characterised in that the bottom of the valve body
Provided with bottom end cover, packing ring is bolted between bottom end cover and valve body.
A kind of 3. wafer type three eccentricity hard seal butterfly valve according to claim 1, it is characterised in that the metal o-ring
For pyrographite plate.
4. a kind of wafer type three eccentricity hard seal butterfly valve according to claim 1, it is characterised in that the axle sleeve and valve rod
Between port at be provided with filler, fixed above filler with gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720980568.3U CN207064664U (en) | 2017-08-08 | 2017-08-08 | A kind of wafer type three eccentricity hard seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720980568.3U CN207064664U (en) | 2017-08-08 | 2017-08-08 | A kind of wafer type three eccentricity hard seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207064664U true CN207064664U (en) | 2018-03-02 |
Family
ID=61519840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720980568.3U Expired - Fee Related CN207064664U (en) | 2017-08-08 | 2017-08-08 | A kind of wafer type three eccentricity hard seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207064664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980375A (en) * | 2018-08-02 | 2018-12-11 | 繁昌县长城铸造厂（普通合伙） | A kind of novel turbine butterfly valve apparatus |
-
2017
- 2017-08-08 CN CN201720980568.3U patent/CN207064664U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980375A (en) * | 2018-08-02 | 2018-12-11 | 繁昌县长城铸造厂（普通合伙） | A kind of novel turbine butterfly valve apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202733009U (en) | Flange two-way pressure hard sealing butterfly valve | |
| CN105508720A (en) | Corrugated pipe stop valve for photo-thermal electricity generation fused salt | |
| CN207064664U (en) | A kind of wafer type three eccentricity hard seal butterfly valve | |
| CN104358910A (en) | Angle stop valve with high sealing performance and long service life | |
| CN208651667U (en) | A kind of gate valve component with bidirectional guide function | |
| CN208670090U (en) | A kind of filtering cut-off is unified into valve | |
| CN113757397A (en) | Six-eccentric bidirectional sealing butterfly valve | |
| CN208651759U (en) | A kind of valve with sealing dust-break effect | |
| CN103174855B (en) | Self-checking type double-valve-head regulating valve | |
| CN203131081U (en) | High-tightness flat gate valve | |
| CN207454802U (en) | A kind of inside screw nonrising stem type gate valve for improving sealing performance | |
| CN217815029U (en) | Three-eccentric butterfly valve with high sealing performance | |
| CN209688127U (en) | A kind of low operational torque centre-pivoted butterfly valve | |
| CN205841801U (en) | A kind of to folder butterfly valve | |
| CN2929377Y (en) | Vacuum butterfly valve | |
| CN218326374U (en) | Thread connection cock | |
| CN207796099U (en) | Weld shut-off valve in middle part | |
| CN110953354B (en) | Four-eccentric butterfly valve | |
| CN212775779U (en) | Stainless steel flange steam valve | |
| CN109611574B (en) | Composite ball valve with pressure regulating device | |
| CN206017776U (en) | Spring compensating type temperature high performance high butterfly valve | |
| CN107387784A (en) | One kind is threaded into formula bronze valve | |
| CN220551516U (en) | Leakage-proof structure of valve | |
| CN214946455U (en) | Six-eccentric all-metal bidirectional pressure butterfly valve | |
| CN203146954U (en) | Self-inspection type double-valve-head regulation valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 Termination date: 20200808 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |