CN201121782Y - Threaded sleeve with high leak tightness - Google Patents
Threaded sleeve with high leak tightness Download PDFInfo
- Publication number
- CN201121782Y CN201121782Y CNU2007201958475U CN200720195847U CN201121782Y CN 201121782 Y CN201121782 Y CN 201121782Y CN U2007201958475 U CNU2007201958475 U CN U2007201958475U CN 200720195847 U CN200720195847 U CN 200720195847U CN 201121782 Y CN201121782 Y CN 201121782Y
- Authority
- CN
- China
- Prior art keywords
- pipe body
- threaded sleeve
- box cupling
- twisting
- coupling
- 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 relates to a threaded bushing, which comprises a coupling and a pipe body, wherein, the pipe body is matched with the coupling through a trapezoidal thread; the end part of the pipe body is provided with a spherical surface, and the coupling is provided with a conical surface that is matched with the spherical surface of the pipe body; the middle part of the coupling is provided with a twisting-stop circular bead, and the twisting-stop circular bead supports against the end part of the pipe body. The airproof design of the pipe joint adopts the matching of the spherical surface and the conical surface; under the effect of a torque, the two airproof surfaces produce contact pressure for radial magnitude of interference, thereby playing the role of metallic sealing; at the same time, a twisting-stop circular bead with high strength is added to assist the airproof effect; during the descent of bushing, the twisting circular bead can also absorb and resist a larger torque.
Description
Technical field
The utility model relates to a kind of threaded sleeve, particularly a kind of threaded sleeve with high leak tightness.
Background technique
Threaded sleeve adopts API API standard buttress thread form usually now, though join strength is higher, sealability is undesirable.
Summary of the invention
Goal of the invention of the present utility model is: solve the defective that existing threaded sleeve can not play good sealing, and a kind of sealability and the more superior threaded sleeve with high leak tightness of join strength are provided, it has overcome the defective of existing threaded sleeve.
In order to realize goal of the invention of the present utility model, threaded sleeve with high leak tightness of the present utility model, comprise: box cupling and body, match by buttress thread between body and the box cupling, wherein: body has a sphere near the place, end, with on the box cupling that the sphere of body matches a conical surface is arranged, the middle part of box cupling has one only to turn round shoulder, only turns round the end that shoulder props up body;
Threaded sleeve with high leak tightness of the present utility model, wherein: the sphere of described body to the distance of center line greater than the conical surface of box cupling distance to center line;
Threaded sleeve with high leak tightness of the present utility model, wherein: described buttress thread is the API buttress thread.
Threaded sleeve with high leak tightness of the present utility model is compared with existing threaded sleeve, has the following advantages:
This product adopts sphere to match with the conical surface at the pipe seal design aspect, under the effect of moment of torsion ground, two sealing surfaces produce contact pressure because of certain radial interference amount is arranged, thereby play the effect of metallic seal, increased simultaneously intensity higher only turn round the effect that shoulder plays auxiliary seal.In sleeve pipe is gone into the well process, only turn round shoulder and can also attract to resist bigger moment of torsion.
Description of drawings
Fig. 1 is a kind of threaded sleeve schematic representation with high leak tightness of the present utility model.
Embodiment
With reference to Fig. 1, a kind of threaded sleeve of the present utility model with high leak tightness, it comprises: box cupling 1 and body 2, match by buttress thread 3 between body 2 and the box cupling 1, buttress thread 3 has adopted the API buttress thread of API, body 2 has a sphere 5 near the place, ends, and on the box cupling 1 that the sphere 5 of body 2 matches a conical surface 4 is arranged, the sphere 5 of body 2 to the distance of center line greater than the conical surface 4 of box cupling 1 distance to center line.The middle part of box cupling 1 has one only to turn round shoulder 6, only turns round the end that shoulder 6 props up body 2.
The conical surface 4 that sphere 5 that primary seal is processed by the end of body 2 and box cupling 1 process is formed.Screw in the process at screw thread, the sphere 5 on the body 2 can steadily enter the primary seal district by the conical surface 4 of box cupling 1, cooperates with the conical surface 4 of box cupling 1.Under the effect of moment of torsion, forming circular linearity between sphere 5 and the conical surface 4 contacts, because the sphere 5 of body 2 arrives the distance of center line greater than the conical surface 4 of box cupling 1 to the distance of center line, two sealing surfaces will produce contact pressure because certain radial interference amount is arranged, thereby play the metallic seal effect.Simultaneously, only turn round shoulder 6 and prop up box cupling 1, play the effect of auxiliary seal.
Above embodiment is not the qualification to model utility just to explanation of the present utility model, and the utility model institute restricted portion is referring to claim, and under the situation of spirit of the present utility model, the utility model can be done any type of modification.
Claims (3)
1 one kinds of threaded sleeves with high leak tightness, it comprises: box cupling (1) and body (2), match by buttress thread (3) between body (2) and the box cupling (1), it is characterized in that: body (2) has a sphere (5) near the place, end, with on the box cupling (1) that the sphere (5) of body (2) matches a conical surface (4) is arranged, the middle part of box cupling (1) has one only to turn round shoulder (6), only turns round the end that shoulder (6) props up body (2).
2. the threaded sleeve with high leak tightness according to claim 1 is characterized in that: the sphere (5) of described body (2) arrives the distance of center line greater than the conical surface (4) of box cupling (1) to the distance of center line.
3. the threaded sleeve with high leak tightness according to claim 2 is characterized in that: described buttress thread (3) is the API buttress thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201958475U CN201121782Y (en) | 2007-10-30 | 2007-10-30 | Threaded sleeve with high leak tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201958475U CN201121782Y (en) | 2007-10-30 | 2007-10-30 | Threaded sleeve with high leak tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201121782Y true CN201121782Y (en) | 2008-09-24 |
Family
ID=40009010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201958475U Expired - Fee Related CN201121782Y (en) | 2007-10-30 | 2007-10-30 | Threaded sleeve with high leak tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201121782Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563904A (en) * | 2014-12-31 | 2015-04-29 | 达力普石油专用管有限公司 | Sealing connecting structure of casing of gas well |
| CN107407447A (en) * | 2015-02-19 | 2017-11-28 | 安赛乐米塔尔管材产品卢森堡股份公司 | Threaded connector for such as petroleum pipeline and gas pipeline etc pipeline |
| US10612702B2 (en) | 2017-03-03 | 2020-04-07 | Arcelormittal Tubular Products Luxembourg S.A. | Torque shoulder of a premium connection |
| US11940064B2 (en) | 2022-06-17 | 2024-03-26 | Saudi Arabian Oil Company | Threaded tubular connection |
-
2007
- 2007-10-30 CN CNU2007201958475U patent/CN201121782Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563904A (en) * | 2014-12-31 | 2015-04-29 | 达力普石油专用管有限公司 | Sealing connecting structure of casing of gas well |
| CN107407447A (en) * | 2015-02-19 | 2017-11-28 | 安赛乐米塔尔管材产品卢森堡股份公司 | Threaded connector for such as petroleum pipeline and gas pipeline etc pipeline |
| CN107407447B (en) * | 2015-02-19 | 2019-09-17 | 安赛乐米塔尔管材产品卢森堡股份公司 | Threaded connector for such as petroleum pipeline and gas pipeline etc pipeline |
| US10612700B2 (en) | 2015-02-19 | 2020-04-07 | Arcelormittal Tubular Products Luxembourg S.A. | Method for making a threaded connection for pipes, such as oil and gas pipes |
| US11614184B2 (en) | 2015-02-19 | 2023-03-28 | Arcelormittal Tubular Products Luxembourg S.A. | Method for making a threaded connection for pipes, such as oil and gas pipes |
| US10612702B2 (en) | 2017-03-03 | 2020-04-07 | Arcelormittal Tubular Products Luxembourg S.A. | Torque shoulder of a premium connection |
| US11940064B2 (en) | 2022-06-17 | 2024-03-26 | Saudi Arabian Oil Company | Threaded tubular connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: DALIPAL PIPE COMPANY Assignor: Dalipal Group Ltd. Contract fulfillment period: 2009.5.10 to 2015.5.9 Contract record no.: 2009130000065 Denomination of utility model: Threaded sleeve with high leak tightness Granted publication date: 20080924 License type: Exclusive license Record date: 20090515 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.5.10 TO 2015.5.9; CHANGE OF CONTRACT Name of requester: DALIPU OCTG CO., LTD. Effective date: 20090515 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20141030 |
|
| EXPY | Termination of patent right or utility model |