CN1563749A - Hydraulic bellows cut-off valve - Google Patents
Hydraulic bellows cut-off valve Download PDFInfo
- Publication number
- CN1563749A CN1563749A CN 200410034469 CN200410034469A CN1563749A CN 1563749 A CN1563749 A CN 1563749A CN 200410034469 CN200410034469 CN 200410034469 CN 200410034469 A CN200410034469 A CN 200410034469A CN 1563749 A CN1563749 A CN 1563749A
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- China
- Prior art keywords
- valve
- bellows
- hydraulic
- valve rod
- nut
- 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.)
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- Diaphragms And Bellows (AREA)
Abstract
To the disadvantages of the existing mechanical break valve, so the difficult-operating switch, the easy-abrading ealing surface, short operating life, etc. the new break valve applies the principle of hydraulic transmission, the sylphon valve petal is invented. The assistant hand wheel pulls the oil cylinder as hydraulic source. The master and slave hand wheels operate separately to control the valve petal on/off thus easy operating.
Description
The hydraulic bellows stop valve is the innovation and creation that belong to the stop valve aspect.Its task is at existing traditional mechanical formula stop valve, in use exist unlatching, closing function power is big, not easy to operate, flap is because of directly being subjected to the influence of valve rod overload active force, then its sealing surface easily produces wear phenomenon, problems such as cause seal failure, initiation is leaked, and working life is short.Developed the application hydraulic transfering principle first, a kind of bellows-type flap is provided, major and minor handwheel is operated step by step, thereby overcomes above-mentioned shortcoming, from having improved the performance of stop valve in essence, has prolonged working life.
The present invention is provided with a piston oil-cylinder above assistant's wheel, rotated by it and produce oil pressure, by the valve rod center hole hydraulic oil is being delivered to the bellows flap, acts on the diaphragm platen pressurized distending.Seal ring is engaged tightly with platen, guaranteed to close not have and leaked.
Novel structure of the present invention, rapid operation, buffer function and good seal performance, long service life is a kind of desirable model utility stop valve.
Figure of description is a structure sectional view of the present invention.Among the figure: 1. valve body; 2. seal ring; 3. bellows flap; 4. coupling nut; 5. double-screw bolt; 6. lining; 7. valve gap; 8. gland; 9. positioning plate; 10. pad; 11. ball; 12. main handwheel; 13. assistant's wheel; 14. secondary retainer nut; 15 oil cylinders; 16. oil pressure gauge; 17. piston; 18. flat key; 19. handwheel locking nut; 20. gland nut; 21. main retainer nut; 22. valve rod; 23. suspension ring double-screw bolt; 24. filler; 25. pad; 26. diaphragm; 27. box body; 28. locking nut; 29. platen; 30. stop nut; 31. stop screw.
Annotate: bellows flap 3 is by box body 27; Diaphragm 26; Locking nut 28; Platen 29; Stop nut 30; Stop screw 31 is formed.It and valve rod 22 vertically are coupled to one.Promptly by locking nut 28 up and down; Stop nut 30 and coupling nut 4 are fastened on diaphragm 26 box body 27 respectively and up and down on the platen 29, make in the bellows flap 3 sealing tight, high pressure resistant.
The present invention takes turns on 13 assistant and by flat key 18 and handwheel locking nut 19 secondary retainer nut 14 and oil cylinder 15 is connected into one.Piston 17 and valve rod 22 are integral through spiral marking connection.Main handwheel 12 is connected into one with main retainer nut 21 through flat key 18 and locking nut 19.When rotating main handwheel 12, main retainer nut 21 rotates thereupon, drives valve rod 22 with 3 unlatchings of bellows flap or close.
Below in conjunction with accompanying drawing to its action principle of implementation of the present invention.
1. during valve opening:
Rotate counterclockwise assistant and take turns 13 and drive on secondary retainer nuts 14 and the oil cylinder 15 and move, then the oil pressure in the oil cylinder 15 reduce.Hydraulic oil in the bellows flap 3 turns back to oil cylinder 15 by valve rod 22 center holes and carries out release, and this moment is diaphragm 26 and platen 29 contractions up and down, and platen 29 and seal ring 2 are separated.Main handwheel 12 begins to start, and rotates counterclockwise the main retainer nut 21 of drive valve rod 22 and bellows flap 3 are mentioned valve opening.
2. during valve closing:
Clockwise rotate main handwheel 12 valve rod 22 and bellows flap 3 are moved down into closed position.Impacting force takes turns 13 by assistant then provides, it is clockwise rotated, drive secondary retainer nut 14 and oil cylinder 15 moves down, oil pressure in the oil cylinder 15 is risen, hydraulic oil is delivered to bellows flap 3 by valve rod 22 center holes, this moment is diaphragm 26 pressurized distendings up and down, and platen 29 engages valve closing with seal ring 2.
No matter the present invention is when opening or closing, and its bellows flap is always decomposed steering force by hydraulic pressure earlier to be drawn for a short time, so it has not only withstand voltage but also labour-saving effect.
Claims (5)
1. a hydraulic bellows stop valve mainly comprises bellows flap (3); Valve body (1); Seal ring (2); Valve gap (7); Main handwheel (12); Assistant takes turns (13); Secondary retainer nut (14); Oil cylinder (15); Oil pressure gauge (16); Piston (17); Valve rod (22) etc.It is characterized in that adopting assistant to take turns the manipulation oil cylinder, valve rod UNICOM bellows flap, hydraulic pressure transfer, major and minor handwheel is operated step by step.Unlatching, the closing operation of realizing this stop valve are laborsaving, and good buffering function is closed not have and leaked.
2. a kind of hydraulic bellows stop valve as claimed in claim 1 is characterized in that bellows flap (3) is provided with box body (27); Diaphragm (26); Locking nut (28); Coupling nut (4); Stop nut (30); Platen (29); Stop screw (31) constitutes hydraulic pressure bellows flap.
3. a kind of hydraulic bellows stop valve as claimed in claim 1 is characterized in that valve rod (22) center line is provided with the oil circuit through hole, and it and valve rod (22) top assistant take turns (13); Secondary retainer nut (14); Oil cylinder (15); Oil pressure gauge (16); Piston (17) constitutes the cylinder type hydraulic power.
4. a kind of hydraulic bellows stop valve as claimed in claim 1 is characterized in that valve rod (22) is provided with two handwheels.Promptly constitute the substep operation by main handwheel (12) and assistant's wheel (13).
5. a kind of hydraulic bellows stop valve as claimed in claim 1 is characterized in that valve rod (22) middle part is provided with positioning plate (9) and matches with two perpendicular muscle baffle plates of symmetry in valve gap (7) upper bracket, and valve rod (22) is turned to the location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410034469 CN1563749A (en) | 2004-04-08 | 2004-04-08 | Hydraulic bellows cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410034469 CN1563749A (en) | 2004-04-08 | 2004-04-08 | Hydraulic bellows cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1563749A true CN1563749A (en) | 2005-01-12 |
Family
ID=34481507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410034469 Pending CN1563749A (en) | 2004-04-08 | 2004-04-08 | Hydraulic bellows cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1563749A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641436A (en) * | 2016-12-09 | 2017-05-10 | 无锡银联齿轮传动机械有限公司 | Hinged connection structure for push rod and valve plate of electric push rod valve |
-
2004
- 2004-04-08 CN CN 200410034469 patent/CN1563749A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641436A (en) * | 2016-12-09 | 2017-05-10 | 无锡银联齿轮传动机械有限公司 | Hinged connection structure for push rod and valve plate of electric push rod valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |