CN2856623Y - Parallel gate valve - Google Patents
Parallel gate valve Download PDFInfo
- Publication number
- CN2856623Y CN2856623Y CN 200520037489 CN200520037489U CN2856623Y CN 2856623 Y CN2856623 Y CN 2856623Y CN 200520037489 CN200520037489 CN 200520037489 CN 200520037489 U CN200520037489 U CN 200520037489U CN 2856623 Y CN2856623 Y CN 2856623Y
- Authority
- CN
- China
- Prior art keywords
- valve
- ball
- valve rod
- flashboard
- 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.)
- Expired - Fee Related
Links
- 230000007423 decrease Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Taps Or Cocks (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a parallel gate valve, including gate valve body and hand wheel, be equipped with the valve rod in the valve body and the flashboard and the disk seat of being connected with the valve rod, be equipped with ball above the valve rod, the last nut that is equipped with of ball, this nut links into an organic whole with the hand wheel through the key-type connection, be equipped with the ball between ball and the nut, this ball passes through adapter sleeve and locating pin and is connected with the flashboard, this valve passes through the rotatory promotion of hand wheel, the flashboard is opened to decline ball system and valve rod, realize the switch of valve, control mud, ball system has been increased on the top of valve rod, make opening the moment of torsion and the unloaded moment of torsion of parallel gate valve fall respectively below 200N.m and 20N.m, the very big operation that has.
Description
Technical field:
The utility model relates to a kind of valve, particularly relates to a kind of parallel slide valve, is mainly used in oil gas well wellhead assembly and the various manifold.
Background technique:
In oil gas well wellhead assembly and various manifold; a large amount of parallel slide valves that use; this valve is by freely fitting between metal flashboard and the metal seat valve plane; and by seal gease under the effect of medium, realize the sealing; during sealing; valve pocket bears line pressure, and parallel slide valve commonly used now adopts power screw by rotating a handwheel; driving the valve rod connecting sleeve moves up and down flashboard; realize valve opening, in use find, owing to bear bigger line pressure in the valve pocket; resistance is very big when rotating handwheel; extremely inconvenient during execute-in-place, the situation through the delayed start-up valve appears in regular meeting influences normally operation.
Summary of the invention:
The utility model is at the deficiencies in the prior art, a kind of parallel slide valve is provided, technical problem to be solved is to reduce the unlatching and the unloaded moment of torsion of gate valve, guarantee carrying out smoothly of execute-in-place, reduce error, technical solution adopted in the utility model is as follows: the utility model comprises gate valve body and handwheel, be provided with valve rod and flashboard that is connected with valve rod and valve seat in the valve body, it is characterized in that above valve rod, being provided with ball screw, ball screw is provided with nut, this nut connects by key and handwheel fuses, and is provided with ball between ball screw and the nut, and this ball screw is connected with flashboard with locating stud by connecting sleeve.
Action principle of the present utility model is as follows: parallel slide valve is under opening state, handwheel turns clockwise, the drive ball-screw nut turns clockwise, ball screw is moved downward, by locating stud, valve rod connecting sleeve, drive valve rod and flashboard move down to make to reach freely between metal flashboard sealing surface and the metal seat valve plane fits, and realizes the parallel slide valve sealing; Parallel slide valve is rotated counterclockwise handwheel under opening state, drive ball-screw nut and be rotated counterclockwise, and ball screw is moved upward, and by locating stud, valve rod connecting sleeve, drives valve rod and flashboard and moves upward, and realizes the full open of parallel slide valve.
Compared with prior art, the utility model is rational in infrastructure, operates lightly, can make and open moment of torsion and unloaded moment of torsion is reduced to 200NM respectively and below the 20NM, greatly made things convenient for execute-in-place.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation
Accompanying drawing 2 is the partial enlarged drawings in the accompanying drawing 1
Specific embodiments:
The utility model comprises gate valve body 2 and handwheel 1, be provided with valve rod 9 and flashboard that is connected with valve rod and valve seat in the valve body, above valve rod, be provided with ball screw 3, ball screw is provided with nut 5, this nut connects by key 6 and handwheel fuses, be provided with ball 4 between ball screw and the nut, this ball screw is connected with flashboard with locating stud 8 by connecting sleeve 7, parallel slide valve is under opening state, handwheel turns clockwise, ball-screw nut is turned clockwise, ball screw is moved downward, pass through locating stud, the valve rod connecting sleeve, drive valve rod and flashboard move down to make to reach freely between metal flashboard sealing surface and the metal seat valve plane fits, and realizes the parallel slide valve sealing; Parallel slide valve is rotated counterclockwise handwheel under opening state, drive ball-screw nut and be rotated counterclockwise, and ball screw is moved upward, and by locating stud, valve rod connecting sleeve, drives valve rod and flashboard and moves upward, and realizes the full open of parallel slide valve.
Claims (1)
1, a kind of parallel slide valve, comprise gate valve body and handwheel, be provided with valve rod and flashboard that is connected with valve rod and valve seat in the valve body, it is characterized in that above valve rod, being provided with ball screw, ball screw is provided with nut, this nut connects by key and handwheel fuses, and is provided with ball between ball screw and the nut, and this ball screw is connected with flashboard with locating stud by connecting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520037489 CN2856623Y (en) | 2005-12-20 | 2005-12-20 | Parallel gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520037489 CN2856623Y (en) | 2005-12-20 | 2005-12-20 | Parallel gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2856623Y true CN2856623Y (en) | 2007-01-10 |
Family
ID=37599930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520037489 Expired - Fee Related CN2856623Y (en) | 2005-12-20 | 2005-12-20 | Parallel gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2856623Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900211A (en) * | 2010-08-12 | 2010-12-01 | 承德江钻石油机械有限责任公司 | Pneumatic parallel gate valve |
| CN102937209A (en) * | 2012-10-31 | 2013-02-20 | 北京控制工程研究所 | Transmission structure of satellite valve |
-
2005
- 2005-12-20 CN CN 200520037489 patent/CN2856623Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900211A (en) * | 2010-08-12 | 2010-12-01 | 承德江钻石油机械有限责任公司 | Pneumatic parallel gate valve |
| CN101900211B (en) * | 2010-08-12 | 2012-08-29 | 承德江钻石油机械有限责任公司 | Pneumatic parallel gate valve |
| CN102937209A (en) * | 2012-10-31 | 2013-02-20 | 北京控制工程研究所 | Transmission structure of satellite valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070110 Termination date: 20141220 |
|
| EXPY | Termination of patent right or utility model |