CN101949268B - Rotating joint - Google Patents
Rotating joint Download PDFInfo
- Publication number
- CN101949268B CN101949268B CN201010286641A CN201010286641A CN101949268B CN 101949268 B CN101949268 B CN 101949268B CN 201010286641 A CN201010286641 A CN 201010286641A CN 201010286641 A CN201010286641 A CN 201010286641A CN 101949268 B CN101949268 B CN 101949268B
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- joint
- top connection
- lower contact
- external diameter
- pressure cap
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Abstract
The invention discloses a rotating joint, relating to the technical field of oilfield well drilling, in particular to the structure of a drill pipe joint. The rotating joint comprises a lower joint with a hollow structure, and the lower joint comprises a lower joint with large inner diameter and a lower joint with small inner diameter from top to bottom. An upper joint with a hollow structure is arranged above the lower joint, and the upper joint comprises an upper joint with small outer diameter and an upper joint with large outer diameter from top to bottom. The upper joint with large outer diameter is matched with the lower joint with large inner diameter, a cap is sheathed on the upper joint with small outer diameter, the cap is arranged on the upper end of the upper joint with large outer diameter, and the cap is in thread connection with the lower joint with large inner diameter. Due to that the upper joint can rotate randomly in the lower joint, the direction of the upper tools can be changed randomly according to the needs, and the upper end of the joint can be connected with a circulating joint as well a test wellhead and the like. The rotating joint has the advantages of simple structure, convenient operation and safe use.
Description
Technical field
The present invention relates to the oil drilling technical field, relate in particular to the structure of tool joint.
Background technology
Known tool joint is an overall structure, can not rotate, if connect the instrument of special operation above that, like circulation well cleanup, connect circulating connection after, its threeway or the bad adjustment of four-way direction are made troubles to operation, for this reason, the invention swivel joint.
Summary of the invention
The objective of the invention is provides a kind of swivel joint in order to overcome the deficiency of prior art, through the rotation of joint, can satisfy the needs of various connections.
The objective of the invention is to realize like this: swivel joint; Comprise the lower contact of hollow structure; Lower contact comprises large diameter lower contact and little internal diameter lower contact from top to bottom, and the top of lower contact is provided with the top connection of hollow structure, and top connection comprises little external diameter top connection and big external diameter top connection from top to bottom; Big external diameter top connection is equipped with in the large diameter lower contact; Be nested with pressure cap in the little external diameter top connection, pressure cap is arranged on the upper end of big external diameter top connection, and pressure cap is threaded with the large diameter lower contact.
During work, lower contact is connected the drill string upper end and can not rotates, and top connection can be rotated the change horizontal direction arbitrarily, connects special operation instrument needs to satisfy top connection top.
Superiority of the present invention: owing to top connection can be rotated arbitrarily in lower contact, thereby its upper tool can change direction arbitrarily as required, and upper end of joint can connect circulating connection also can connect shaft mouth test etc.The present invention is simple in structure, easy and simple to handle, and is safe in utilization.
As improvement of the present invention, the inboard of pressure cap radially is provided with at least one annular groove, and one group of steel ball is set in each annular groove, and each organizes the periphery that steel ball is arranged on little external diameter top connection.Steel ball plays the effect that auxiliary bearing supports.
In order to prevent that dust from getting into the gap between pressure cap and the little external diameter top connection, is provided with first O-ring seals between pressure cap and the little external diameter top connection.
In order to seal the gap between big external diameter top connection and the large diameter lower contact, between big external diameter top connection and the large diameter lower contact second O-ring seals is set.
In order to improve sealing effectiveness, between big external diameter top connection and the large diameter lower contact v-ring of arranging in groups is set.
For ease of sliding between big external diameter top connection and the large diameter lower contact, between big external diameter top connection and the large diameter lower contact supporting bead is set.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Among the figure, 1 top connection, the little external diameter top connection of 1-1, the big external diameter top connection of 1-2,2 pressure caps; The 2-1 annular groove, 3 second O-ring seals, 4 lower contacts, the lower contact of 4-1 large diameter, the little internal diameter lower contact of 4-2; 5 first O-ring seals, 6 steel balls, 7V shape sealing ring, 8 supporting beads.
The specific embodiment
As shown in Figure 1; Be swivel joint, comprise the lower contact 4 of hollow structure, lower contact 4 comprises large diameter lower contact 4-1 and little internal diameter lower contact 4-2 from top to bottom; The top of lower contact 4 is provided with the top connection 1 of hollow structure; Top connection 1 comprises little external diameter top connection 1-1 and big external diameter top connection 1-2 from top to bottom, and big external diameter top connection 1-2 is equipped with in large diameter lower contact 4-1, is nested with pressure cap 2 on the little external diameter top connection 1-1; Pressure cap 2 is arranged on the upper end of big external diameter top connection 1-2, and pressure cap 2 is threaded with large diameter lower contact 4-1.
The inboard of pressure cap 2 radially is provided with bipassage ring connected in star 2-1, and one group of steel ball 6 is set in each annular groove 2-1, and each organizes the periphery that steel ball 6 is arranged on little external diameter top connection 1-1.
Between pressure cap 2 and the little external diameter top connection 1-1 first O-ring seals 5 is set, sets gradually second O-ring seals 3, v-ring 7 and a supporting bead 8 of layout in groups between big external diameter top connection 1-2 and the large diameter lower contact 4-1 from top to bottom.
Claims (6)
1. swivel joint, it is characterized in that: comprise the lower contact of hollow structure, lower contact comprises large diameter lower contact and little internal diameter lower contact from top to bottom; The top of lower contact is provided with the top connection of hollow structure; Top connection comprises little external diameter top connection and big external diameter top connection from top to bottom, and big external diameter top connection is equipped with in the large diameter lower contact, is nested with pressure cap in the little external diameter top connection; Pressure cap is arranged on the upper end of big external diameter top connection, and pressure cap is threaded with the large diameter lower contact.
2. swivel joint according to claim 1 is characterized in that: the inboard of said pressure cap radially is provided with at least one annular groove, and one group of steel ball is set in each annular groove, and each organizes the periphery that steel ball is arranged on little external diameter top connection.
3. swivel joint according to claim 1 is characterized in that: between said pressure cap and the little external diameter top connection first O-ring seals is set.
4. swivel joint according to claim 1 is characterized in that: between said big external diameter top connection and the large diameter lower contact second O-ring seals is set.
5. swivel joint according to claim 1 is characterized in that: the v-ring of arranging in groups is set between said big external diameter top connection and the large diameter lower contact.
6. swivel joint according to claim 1 is characterized in that: between said big external diameter top connection and the large diameter lower contact supporting bead is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010286641A CN101949268B (en) | 2010-09-20 | 2010-09-20 | Rotating joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010286641A CN101949268B (en) | 2010-09-20 | 2010-09-20 | Rotating joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101949268A CN101949268A (en) | 2011-01-19 |
| CN101949268B true CN101949268B (en) | 2012-10-03 |
Family
ID=43452882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010286641A Active CN101949268B (en) | 2010-09-20 | 2010-09-20 | Rotating joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101949268B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343850B (en) * | 2013-07-30 | 2015-03-11 | 张家政 | Rotary joint |
| CN107762429A (en) * | 2016-08-22 | 2018-03-06 | 中国石油天然气股份有限公司 | Rotating head for continuously lifting and lowering oil pipe |
| CN107237933A (en) * | 2017-07-14 | 2017-10-10 | 芜湖威灵数码科技有限公司 | A kind of closed rotary connecting joint with self-adjusting structure |
| CN109736721A (en) * | 2019-01-08 | 2019-05-10 | 牡丹江石油工具有限责任公司 | Rotary drilling rod bypasses circulating connection |
| CN111236886B (en) * | 2020-02-10 | 2022-04-15 | 山东博赛特石油技术有限公司 | Floating type rotary sliding sand prevention wellhead device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034242A (en) * | 1988-01-11 | 1989-07-26 | 通化市山城能源钻采机械厂 | Insert type spring sleeve joint device for drill rods |
| US4904228A (en) * | 1984-05-14 | 1990-02-27 | Norton Christensen, Inc. | Universal ball joint |
| US6244345B1 (en) * | 1996-12-31 | 2001-06-12 | Specialty Rental Tool & Supply Co., Inc. | Lockable swivel apparatus and method |
| CN101429851A (en) * | 2008-12-08 | 2009-05-13 | 袁文斌 | Taper pipe threaded drilling tool |
| CN201250613Y (en) * | 2008-07-31 | 2009-06-03 | 河北华北石油荣盛机械制造有限公司 | High pressure rapid connector |
| CN201771440U (en) * | 2010-09-20 | 2011-03-23 | 扬州市驰城石油机械有限公司 | Rotary joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2480164B (en) * | 2009-02-16 | 2013-06-12 | Rotaflow Fv Ltd | A swivel joint |
-
2010
- 2010-09-20 CN CN201010286641A patent/CN101949268B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904228A (en) * | 1984-05-14 | 1990-02-27 | Norton Christensen, Inc. | Universal ball joint |
| CN1034242A (en) * | 1988-01-11 | 1989-07-26 | 通化市山城能源钻采机械厂 | Insert type spring sleeve joint device for drill rods |
| US6244345B1 (en) * | 1996-12-31 | 2001-06-12 | Specialty Rental Tool & Supply Co., Inc. | Lockable swivel apparatus and method |
| CN201250613Y (en) * | 2008-07-31 | 2009-06-03 | 河北华北石油荣盛机械制造有限公司 | High pressure rapid connector |
| CN101429851A (en) * | 2008-12-08 | 2009-05-13 | 袁文斌 | Taper pipe threaded drilling tool |
| CN201771440U (en) * | 2010-09-20 | 2011-03-23 | 扬州市驰城石油机械有限公司 | Rotary joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101949268A (en) | 2011-01-19 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |