CN208871048U - One-board double seals butterfly valve - Google Patents
One-board double seals butterfly valve Download PDFInfo
- Publication number
- CN208871048U CN208871048U CN201821324258.7U CN201821324258U CN208871048U CN 208871048 U CN208871048 U CN 208871048U CN 201821324258 U CN201821324258 U CN 201821324258U CN 208871048 U CN208871048 U CN 208871048U
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- China
- Prior art keywords
- valve
- butterfly
- butterfly plate
- plate
- double seals
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- 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 one-board double seals butterfly valves, including butterfly plate, valve body, valve shaft, operating mechanism, driving mechanism, overhaul sealing piston, overhaul sealing ring, working seal circle, working seal valve seat and gland, the butterfly plate is mounted in valve body and connect with valve shaft, the connection of one end of the valve shaft and driving mechanism, the end of the butterfly plate is Circular plate structure, and the end of butterfly plate is equipped with working seal circle, working seal circle is connected on butterfly plate by gland, the working seal valve seat cooperated with working seal circle is equipped in aforementioned valve body, the end of aforementioned butterfly plate is equipped with tapered sealing surface, the tapered sealing surface is equipped with maintenance sealing ring, the valve body is equipped with the driving mechanism vertical with the butterfly plate direction of motion, the driving mechanism is equipped with maintenance sealing piston, the surface and tapered sealing surface for overhauling sealing piston cooperate.The butterfly valve reduces the weight of butterfly plate, reduces the stroke of piston, reduces the manufacturing cost of double seals butterfly valve, and improves stability.
Description
Technical field
The utility model belongs to valve technology field more particularly to a kind of one-board double seals butterfly valve.
Background technique
Butterfly valve is called flap valve, is a kind of simple regulating valve of structure, can be used for the switch control of low pressure pipeline medium
Butterfly valve refers to that closure member (flap or butterfly plate) is disk, and a kind of valve of open and close is reached around valve shaft rotation.
Valve can be used for controlling empty gas and water, steam, various corrosive medias, mud, oil product, liquid metal and radioactivity
The flowing of the various types fluid such as medium.Cutting and throttling action are mainly played on pipeline.Butterfly valve opening and closing element is a disc
Butterfly plate, in valve body around its own axis rotate, to achieve the purpose that opening and closing or adjusting.
Traditional double seals butterfly valve butterfly plate is that one in front and one in back double plate structure, working seal and maintenance sealing are separately positioned on butterfly plate
On the plectane of two blocks of front and back, and consider interference problem of the butterfly plate in opening process with maintenance sealing piston, overhauls sealing piston
Stroke has to grow very much, results in valve mechanism extended length many in this way, weight weight, and manufacturing cost is high.
Summary of the invention
Place, the utility model provide a kind of one-board double seals butterfly valve, subtract in order to overcome the above-mentioned deficiencies of the prior art
The weight of small butterfly plate reduces the stroke of piston, reduces the manufacturing cost of double seals butterfly valve, and improves stability.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of one-board double seals butterfly valve, including butterfly
Plate, valve body, valve shaft, operating mechanism, driving mechanism, maintenance sealing piston, maintenance sealing ring, working seal circle, working seal valve
Seat and gland, the butterfly plate are mounted in valve body and connect with valve shaft, one end connection of the valve shaft and driving mechanism, the butterfly
The end of plate is Circular plate structure, and the end of butterfly plate is equipped with working seal circle, and working seal circle is connected on butterfly plate by gland,
The working seal valve seat cooperated with working seal circle is equipped in aforementioned valve body, the end of aforementioned butterfly plate is equipped with tapered sealing surface, should
Tapered sealing surface is equipped with maintenance sealing ring, and the valve body is equipped with the driving mechanism vertical with the butterfly plate direction of motion, the driving
Mechanism is equipped with maintenance sealing piston, and the surface and tapered sealing surface for overhauling sealing piston cooperate.
In the above-mentioned technical solutions, the driving mechanism is hydraulic drive mechanism.
In the above-mentioned technical solutions, the driving mechanism is Manual drive mechanism, including upper drive rod, lower drive rod, lock
One end of tight nut, driving nut, support plate and transmission nut, the upper drive rod connect and is assemblied in maintenance sealing piston
In valve body, other end of drive rod is connect with lower drive rod on this, and the lower drive rod passes through valve body and passes through with transmission nut
It is threadedly coupled, locking nut, driving nut and support plate, the support plate is successively arranged outside the transmission nut and is connect with valve
Pipeline it is affixed.
In the above-mentioned technical solutions, the transmission nut outer surface be equipped with two sections of screw threads, one section be plus thread, end with
The screw thread of locking nut connection is reverse thread.
In the above-mentioned technical solutions, the internal screw thread of the transmission nut is trapezoidal thread.
In the above-mentioned technical solutions, axial gap 2-3mm is equipped between the transmission nut and support plate.
In the above-mentioned technical solutions, the area of the maintenance sealing ring is less than the area of tapered sealing surface.
In the above-mentioned technical solutions, the gland is connect by bolt with butterfly plate.
In the above-mentioned technical solutions, the operating mechanism is valve rod.
The beneficial effects of the utility model are:
1, the double plate structure that traditional double seals butterfly valve is replaced using single plate structure, is reduced butterfly plate weight, reduces piston
Stroke, improve the stability of pistons work；
2, structure is simple, reliable, and manufacturing cost is low；
3, maintenance is sealed into the double sealing structure that the stainless steel conical surface adds stainless steel to rubber to the conical surface, and sealing effect more may be used
It leans on；
4, it may be selected to surge or be manually operated maintenance sealing piston, driving method is versatile and flexible.
Detailed description of the invention
Fig. 1 is the semi-section structural schematic diagram of the utility model.
Fig. 2 is the enlarged drawing of I in Fig. 1.
Fig. 3 is the schematic cross-sectional view of Manual drive mechanism.
Wherein: 1. butterfly plates, 2. valve bodies, 3. valve shafts, 4. operating mechanisms, 5. driving mechanisms, 6. maintenance sealing pistons, 7. maintenance
Sealing ring, 8. working seal circles, 9. working seal valve seats, 10. glands, drive rod on 11., 12. lower drive rods, 13. locking screws
Mother, 14. driving nuts, 15. support plates, 16. transmission nuts.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the utility model is described in further detail.
A kind of one-board double seals butterfly valve as depicted in figs. 1 and 2, including butterfly plate 1, valve body 2, valve shaft 3, operating mechanism 4,
Driving mechanism 5, maintenance sealing piston 6, maintenance sealing ring 7, working seal circle 8, working seal valve seat 9 and gland 10, the butterfly
Plate 1 is mounted in valve body 2 and connect with valve shaft 3, and the valve shaft 3 is connect with one end of driving mechanism 4, the end of the butterfly plate 1
For Circular plate structure, and it being equipped with working seal circle 8 in the end of butterfly plate 1, working seal circle 8 is connected on butterfly plate 1 by gland 10,
The working seal valve seat 9 cooperated with working seal circle 8 is equipped in aforementioned valve body 2, the Circular plate structure of aforementioned butterfly plate 1 is equipped with tapered
Sealing surface, the tapered sealing surface are equipped with maintenance sealing ring 7, and the valve body 2 is equipped with the driving vertical with 1 direction of motion of butterfly plate
Mechanism 5, the driving mechanism 5 are equipped with maintenance sealing piston 6, and the surface and tapered sealing surface for overhauling sealing piston 6 cooperate.
In the above-mentioned technical solutions, the driving mechanism is hydraulic drive mechanism.
In the above-mentioned technical solutions, the driving mechanism is Manual drive mechanism, including upper drive rod 11, lower drive rod
12, locking nut 13, driving nut 14, support plate 15 and transmission nut 16, one end of the upper drive rod 11 and maintenance seal
Piston 6 is connected and is assemblied in valve body 2, and other end of drive rod 11 is connect with lower drive rod 12 on this, the lower drive rod 12
It is connected through a screw thread across valve body 2 and with transmission nut 16, locking nut 13, driving spiral shell is successively arranged outside the transmission nut 16
Mother 14 and support plate 15, the pipeline that the support plate 15 is connect with valve are affixed.The Manual drive mechanism uses constantly, using work
Tool rotates clockwise driving nut 14, and the reverse thread cooperated by locking nut 13 and transmission nut 16 prevents driving nut
14 exit from transmission nut 16, and driving nut 14 is cooperated by forward screw thread drives transmission nut 16 to rotate together, and are driven spiral shell
Rotary torsion is converted into linear thrust and lower drive rod 12 is pushed to advance by the inner trapezoidal thread that mother 16 passes through, to push maintenance close
Seal piston 6 and 1 gluing, sealing of butterfly plate.Conversely, rotating counterclockwise driving nut 14, then maintenance sealing piston 6 is exited.
In the above-mentioned technical solutions, 16 outer surface of transmission nut is equipped with two sections of screw threads, and one section is plus thread, end
The screw thread connecting with locking nut 13 is reverse thread.
In the above-mentioned technical solutions, the internal screw thread of the transmission nut 16 is trapezoidal thread.
In the above-mentioned technical solutions, the axial gap of 2-3mm is equipped between the transmission nut 16 and support plate 15.Due to
Axial gap, several uniformly distributed manual-driven machines of border when driving piston are provided between transmission nut 16 and support plate 15
Structure does not have to while operating, and circuiting sequentially each Manual drive mechanism of operation can achieve the purpose that drive piston.
In the above-mentioned technical solutions, the area of the maintenance sealing ring 7 is less than the area of tapered sealing surface.It is close by overhauling
Seal 7 and part tapered sealing surface itself carry out dual-seal with maintenance sealing piston 6, and sealing effect is more reliable.
In the above-mentioned technical solutions, the gland 10 is connect by bolt with butterfly plate.
In the above-mentioned technical solutions, the operating mechanism 4 is valve rod.
Using the utility model butterfly valve when, operating mechanism 4 pass through valve shaft 3 drive butterfly plate 1 movement close, 1 end of butterfly plate
The working seal circle 8 in portion is bonded and seals with working seal valve seat 9.When working seal circle 8 needs to overhaul, butterfly plate 1 is after continuation of insurance
Hold closed state, the driving maintenance sealing piston 6 of driving mechanism 5 moves downward, when maintenance sealing piston 6 and maintenance sealing ring 7 paste
Merge sealing, it, can working seal circle 8 convenient to overhaul in disassembly lower cover 10.It is close that the driving maintenance of rear drive mechanism 5 is completed in maintenance
Envelope piston 6 moves right, and separates maintenance sealing piston with sealing ring 7 is overhauled.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.
Claims (9)
1. a kind of one-board double seals butterfly valve, it is characterized in that: including butterfly plate, valve body, valve shaft, operating mechanism, driving mechanism, maintenance
Sealing piston, maintenance sealing ring, working seal circle, working seal valve seat and gland, the butterfly plate is mounted in valve body and and valve
One end of axis connection, the valve shaft and driving mechanism connects, and the end of the butterfly plate is Circular plate structure, and the end of butterfly plate is equipped with
Working seal circle, working seal circle are connected on butterfly plate by gland, and the work cooperated with working seal circle is equipped in aforementioned valve body
Make seal valve seat, the end of aforementioned butterfly plate is equipped with tapered sealing surface, which is equipped with maintenance sealing ring, the valve body
It is equipped with the driving mechanism vertical with the butterfly plate direction of motion, which is equipped with maintenance sealing piston, overhauls sealing piston
Surface and tapered sealing surface cooperate.
2. one-board double seals butterfly valve according to claim 1, it is characterized in that: the driving mechanism is hydraulic driving machine
Structure.
3. one-board double seals butterfly valve according to claim 1, it is characterized in that: the driving mechanism is manual-driven machine
Structure, including upper drive rod, lower drive rod, locking nut, driving nut, support plate and transmission nut, the one of the upper drive rod
End connect with maintenance sealing piston and is assemblied in valve body, and other end of drive rod is connect with lower drive rod on this, the lower drive
Lever passes through valve body and is connected through a screw thread with transmission nut, and locking nut, driving nut are successively arranged outside the transmission nut
And support plate, the pipeline that the support plate is connect with valve are affixed.
4. one-board double seals butterfly valve according to claim 3, it is characterized in that: the transmission nut outer surface is equipped with two sections
Screw thread, one section is plus thread, and the screw thread that end is connect with locking nut is reverse thread.
5. one-board double seals butterfly valve according to claim 3, it is characterized in that: the internal screw thread of the transmission nut is trapezoidal
Screw thread.
6. one-board double seals butterfly valve according to claim 3, it is characterized in that: being set between the transmission nut and support plate
There is axial gap 2-3mm.
7. one-board double seals butterfly valve according to claim 1, it is characterized in that: the area of the maintenance sealing ring is less than cone
The area of type sealing surface.
8. one-board double seals butterfly valve according to claim 1, it is characterized in that: the gland is connected by bolt and butterfly plate
It connects.
9. one-board double seals butterfly valve according to claim 1, it is characterized in that: the operating mechanism is valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821324258.7U CN208871048U (en) | 2018-08-16 | 2018-08-16 | One-board double seals butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821324258.7U CN208871048U (en) | 2018-08-16 | 2018-08-16 | One-board double seals butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208871048U true CN208871048U (en) | 2019-05-17 |
Family
ID=66464888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821324258.7U Expired - Fee Related CN208871048U (en) | 2018-08-16 | 2018-08-16 | One-board double seals butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208871048U (en) |
-
2018
- 2018-08-16 CN CN201821324258.7U patent/CN208871048U/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 |
Granted publication date: 20190517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |