CN2405080Y - High sealing gate valve for passing fluid or not - Google Patents
High sealing gate valve for passing fluid or not Download PDFInfo
- Publication number
- CN2405080Y CN2405080Y CN 99255619 CN99255619U CN2405080Y CN 2405080 Y CN2405080 Y CN 2405080Y CN 99255619 CN99255619 CN 99255619 CN 99255619 U CN99255619 U CN 99255619U CN 2405080 Y CN2405080 Y CN 2405080Y
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- CN
- China
- Prior art keywords
- valve body
- valve
- plane
- inclined plane
- gate
- 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 high sealing gate valve for controlling the flow of fluid. A pad made of nonmetal materials and an inclined plane dovetail block are respectively fixed on left and right lateral faces of a gate plate, a positioning pin and a positioning slot thereof are arranged on the gate plate, and a steel ball is inserted in the inclined plane dovetail block; an inclined plane dovetail slot transverse rod is connected with the lower end of a steel rod and is connected with the inclined plane dovetail block in a sliding way; a valve body slot in which the inclined plane dovetail slot transverse rod can slide upwards and downwards is arranged on a valve body; an O-shaped sealing ring is arranged between an upper valve body and a valve rod. In the opening and closing process of the gate valve, no mutual friction exists between the gate plate and the sealing surface of a gate seat, so the utility model has the advantages of less sealing force needed, tight seal, and long service life.
Description
The utility model belongs to valve technology field, particularly fluid break-make control gate valve.
Current, industrial fluids break-make control gate valve is generally wedge-type and parallel type.It has that switch moment is little, flexible operation, simple in structure, characteristics such as drag losses is few, cost is low.But their common shortcomings are: in the gate valve switch process, there is friction mutually in the sealing surface of flashboard and valve seat, generally adopts metallic material at sealing surface, and it not only needs sealing force big, and poor sealing performance, and is fragile.
The purpose of this utility model is to provide a kind of and makes the pad of flashboard and sealing surface of seat with nonmetallic material, and there are not mutual friction in flashboard and sealing surface of seat in the gate valve switch process, good airproof performance, close tight, the gate valve of long service life.
The purpose of this utility model is achieved in that the pad that has the rubber that is screwed on flashboard or polytetrafluoroethylmaterial material to make in the design of the left surface of flashboard, and right flank is the inclined-plane dovetails that is welded on the flashboard.In top riveted joint locating stud is arranged, have the locating slot that cooperates with locating stud on the valve body near flashboard.In the inclined-plane dovetails, stud with steel ball.The lower end of valve rod is the inclined-plane dovetail groove cross bar that is attached thereto, and itself and inclined-plane dovetails are slidingly connected.On valve body, be manufactured with the valve body groove that slides up and down for inclined-plane dovetail groove cross bar.The useful nut of design is fixed on the O type rubber seal on the upper valve body between upper valve body and the valve rod.
The utility model has the advantages that: gate valve is in switching process, and there is not mutual friction in the sealing surface of flashboard and valve seat, and required sealing force is little, and sealing is tight, long service life.
Below in conjunction with accompanying drawing concrete structure of the present utility model is described further.
Fig. 1 is a longitudinal section of the present utility model;
Fig. 2 is the sectional view of valve body.
Among the figure: 1. valve body 2. valve seats 3. valve rods 4. sleeves
5. upper valve body 6. flashboards 7. handwheels 8. inclined-plane dovetails
9. pad 10. steel balls 11. locating slots 12. locating studs
13. inclined-plane dovetail groove cross bar 14. valve body groove 15.O type rubber seal
Referring to accompanying drawing 1, the left surface on flashboard 6 is the pad 9 that the rubber material that is screwed is made, right flank welding inclined-plane dovetails 8.Top riveted joint near flashboard 6 has locating stud 12, has the locating slot 11 that cooperates with locating stud 12 on valve body 1.Stud with steel ball 10 in the inclined-plane dovetails 8.The lower end of valve rod 3 is the inclined-plane dovetail groove cross bar 13 that is attached thereto, and itself and inclined-plane dovetails 8 are slidingly connected.Be O type rubber seal 15 between upper valve body 5 and the valve rod 3, it is fixed on the upper valve body 5 with nut.
Referring to accompanying drawing 2, on valve body 1, have the valve body groove 14 that slides up and down for inclined-plane dovetail groove cross bar 13.
The utility model, in gate valve opening and closing process, gate valve is the substep motion mode.When promptly opening, the transverse movement of flashboard elder generation is lifted off a seat, and longitudinal movement is to fully open position then; When closing, the longitudinal movement of flashboard elder generation, transverse movement is extremely closed fully near valve seat then.
Claims (2)
1. the fluid break-make is controlled the high leak tightness gate valve, comprise valve body (1), valve seat (2), flashboard (6), valve rod (3), upper valve body (5), sleeve (4), handwheel (7), it is characterized in that: the left and right side on flashboard (6) is respectively rubber or the pad (9) of polytetrafluoroethylmaterial material making and the inclined-plane dovetails (8) of welding that is screwed, in top riveted joint locating stud (12) is arranged near flashboard (6), have the locating slot (11) that cooperates with locating stud (12) on the valve body (1), the lower end of valve rod (3) is the inclined-plane dovetail groove cross bar (13) that is attached thereto, itself and inclined-plane dovetails (8) are slidingly connected, and are manufactured with the valve body groove (14) that slides up and down for inclined-plane dovetail groove cross bar (13) on valve body (1).
2. fluid break-make as claimed in claim 1 control high leak tightness gate valve is characterized in that: studding with steel ball (10) in the inclined-plane dovetails (8), is to be fixed on O type rubber seal (15) on the upper valve body (5) with nut between upper valve body (5) and the valve rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99255619 CN2405080Y (en) | 1999-12-09 | 1999-12-09 | High sealing gate valve for passing fluid or not |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99255619 CN2405080Y (en) | 1999-12-09 | 1999-12-09 | High sealing gate valve for passing fluid or not |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2405080Y true CN2405080Y (en) | 2000-11-08 |
Family
ID=34038947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99255619 Expired - Fee Related CN2405080Y (en) | 1999-12-09 | 1999-12-09 | High sealing gate valve for passing fluid or not |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2405080Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563110A (en) * | 2012-03-14 | 2012-07-11 | 伯特利阀门集团有限公司 | Anti-scouring high-temperature gate valve |
| CN103727251A (en) * | 2012-10-15 | 2014-04-16 | 贵州中烟工业有限责任公司 | Gate valve with antirust function |
-
1999
- 1999-12-09 CN CN 99255619 patent/CN2405080Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563110A (en) * | 2012-03-14 | 2012-07-11 | 伯特利阀门集团有限公司 | Anti-scouring high-temperature gate valve |
| CN103727251A (en) * | 2012-10-15 | 2014-04-16 | 贵州中烟工业有限责任公司 | Gate valve with antirust function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |