CN205078233U - Switch cock is pressed in area - Google Patents
Switch cock is pressed in area Download PDFInfo
- Publication number
- CN205078233U CN205078233U CN201520843210.7U CN201520843210U CN205078233U CN 205078233 U CN205078233 U CN 205078233U CN 201520843210 U CN201520843210 U CN 201520843210U CN 205078233 U CN205078233 U CN 205078233U
- Authority
- CN
- China
- Prior art keywords
- ball valve
- valve
- split collar
- valve plug
- cock
- 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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- Multiple-Way Valves (AREA)
Abstract
The utility model relates to a switch cock is pressed in area. The manual problem that can't open under the pressure state is being taken in the present kelly lower part cock of main solution. Its characterized in that: body (1) well deployment has rotatable ball valve (7), and both ends coordinate through the sphere with last disk seat (8), lower valve plug (2) respectively about ball valve (7), upward disk seat (8) go up to deploy has last split collar (12), goes up split collar (12) and body (1) inner wall threaded connection, down valve plug (2) are spacing through the step with body (1), and valve plug (2) go up and step contacting area is equipped with spring (4) down, the one side of ball valve (7) is connected with rotatory round pin (6) through the draw -in groove. This switch cock is pressed in area can open convenient operation under the pressure state taking by hand.
Description
Technical field
The utility model relates to a kind of oilfield, is a kind of double-wall drill pipe specifically.
Background technology
Oil field kelly bar bottom plug valve used is also drilling pipe safety valve, during drilling well drilling fluid can indifference fall freely flow through this cock, be contained in more than kelly bar to control blowout prevention, or be arranged on and put below drilling rod, prevent when kelly bar unloads drilling fluid to run off.Existing cock cannot be opened in band pressure condition assistant work, needs to open pressure release, inconvenient operation with manipulator, and the dynamics of mechanism's hand not easily supports and holds, and operates dangerous.
Summary of the invention
In order to overcome the deficiency that existing kelly bar bottom cock cannot be opened in band pressure condition assistant work, the utility model provides a kind of switch cock with pressure, and this switch cock with pressure can be opened by hand under band pressure condition, easy to operate.
The technical solution of the utility model is: a kind of switch cock with pressure, comprise body, rotating ball valve is equipped with in the middle part of described body, mating spherical surfaces is passed through with upper valve base, lower valve plug respectively in the upper and lower two ends of ball valve, described upper valve base top is equipped with split collar, upper split collar is threaded with inner body wall, and it is spacing that described lower valve plug and body pass through step, and lower valve plug is provided with spring with step contact site; The side of described ball valve is connected with rotating dog by draw-in groove.
On described upper valve base bottom outer wall, cover has lower split collar, and lower split collar is placed in the annular groove in inner body wall.
The utility model has following beneficial effect: owing to taking such scheme, and body interior is equipped with rotatable ball valve, and ball valve is respectively equipped with upper valve base and lower valve plug up and down.Drilling rod operationally, under the spring force effect of ball valve on lower valve plug, with upper valve base and lower valve plug close contact, by channel enclosed; After creeping into end upper lifting pipe post, hand-turning rotating dog, rotating dog drives ball valve to rotate, thus passage is opened pressure release.This switch cock, when pressure is below 35Mp, can realize pressure release with pressure, easy-to-operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1-body in figure, valve plug under 2-, 3-O-ring seal A, 4-spring, 5-O-ring seal B, 6-rotating dog, 7-ball valve, 8-upper valve base, split collar under 9-, 10-O-ring seal C, 11-support set, the upper split collar of 12-, 13-circlip for hole, 14-location bearing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of switch cock with pressure, comprises body 1, is equipped with rotating ball valve 7 in the middle part of described body 1, has through hole in the middle part of ball valve 7 along body 1 axis direction, and ball valve 7 is closed with through hole vertical direction.Mating spherical surfaces is passed through with upper valve base 8, lower valve plug 2 respectively in ball valve about 7 two ends.On the outer wall of described upper valve base 8 bottom, cover has lower split collar 9, and lower split collar 9 is placed in the annular groove on body 1 inwall, thus descends split collar 9 to limit the axial location of upper valve base 8; Upper valve base 8 top is equipped with split collar 12, and upper split collar 12 is connected with body 1 inner thread, and upper split collar 12 inside is equipped with support set 11, and support set 11 end is fixed by circlip 13; O-ring seal C10 is equipped with between described upper valve base 8 outer wall and body 1 inwall.Described lower valve plug 2 is spacing by step with body 1, sealed by O-ring seal A3 between lower valve plug 2 outer wall and body 1 inwall, the step of protrusion is arranged at body 1 bottom, and lower valve plug 2 is provided with spring 4 with step contact site, talk 4 to be circumferentially evenly arranged, by lower valve plug 2 upwards jack-up, thus lower valve plug 2 and ball valve 7 close contact can be made, make ball valve 7 top and upper valve base 8 close contact simultaneously.
The side of described ball valve 7 is connected with rotating dog 6 by draw-in groove, and draw-in groove is strip, ball valve 7 can be driven together to rotate when rotating dog 6 is rotated.Be provided with location bearing 14 between rotating dog 6 and ball valve 7, described body 1 has circular hole, and the end of rotating dog 6 is placed in circular hole, and is equipped with O-ring seal B5 between rotating dog 6 and body 1.
During this cock duty, the through hole on ball valve 7 and body 1 axes normal, ball valve 7 contacts, by channel enclosed with upper valve base 8 and lower valve plug 2 under the elastic force effect of spring 4.After creeping into end upper lifting pipe post, only need hand-turning rotating dog 6, ball valve 7 just can be driven to rotate, make ball valve 7 interior bone consistent with body 1 axis direction, open passage and carry out pressure release.This switch cock with pressure can be opened by hand under the pressure of below 35Mp, easy to operate, safety.
Claims (2)
1. a switch cock with pressure, comprise body (1), it is characterized in that: described body (1) middle part is equipped with rotating ball valve (7), ball valve (7) passes through mating spherical surfaces with upper valve base (8), lower valve plug (2) in two ends up and down respectively, described upper valve base (8) top is equipped with split collar (12), upper split collar (12) is connected with body (1) inner thread, described lower valve plug (2) is spacing by step with body (1), and lower valve plug (2) is upper and step contact site is provided with spring (4); The side of described ball valve (7) is connected with rotating dog (6) by draw-in groove.
2. switch cock with pressure according to claim 1, is characterized in that: on described upper valve base (8) bottom outer wall, cover has lower split collar (9), and lower split collar (9) is placed in the annular groove on body (1) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843210.7U CN205078233U (en) | 2015-10-28 | 2015-10-28 | Switch cock is pressed in area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843210.7U CN205078233U (en) | 2015-10-28 | 2015-10-28 | Switch cock is pressed in area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205078233U true CN205078233U (en) | 2016-03-09 |
Family
ID=55430647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520843210.7U Expired - Fee Related CN205078233U (en) | 2015-10-28 | 2015-10-28 | Switch cock is pressed in area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205078233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160710A (en) * | 2020-09-09 | 2021-01-01 | 中国石油天然气集团有限公司 | Power tap control device |
-
2015
- 2015-10-28 CN CN201520843210.7U patent/CN205078233U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160710A (en) * | 2020-09-09 | 2021-01-01 | 中国石油天然气集团有限公司 | Power tap control device |
| CN112160710B (en) * | 2020-09-09 | 2022-05-17 | 中国石油天然气集团有限公司 | Power tap control device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160309 Termination date: 20161028 |