CN204419059U - Tool joint - Google Patents
Tool joint Download PDFInfo
- Publication number
- CN204419059U CN204419059U CN201520042520.9U CN201520042520U CN204419059U CN 204419059 U CN204419059 U CN 204419059U CN 201520042520 U CN201520042520 U CN 201520042520U CN 204419059 U CN204419059 U CN 204419059U
- Authority
- CN
- China
- Prior art keywords
- shoulder
- external screw
- sealing
- male connection
- joint
- 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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- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The utility model relates to a kind of oil drilling tool, especially a kind of tool joint.Technical problem to be solved in the utility model is to provide a kind of tool joint of good sealing effect, draw together male connection, the female adapter be threaded with male connection, described male connection has three sections of axially extended external screw threads, described three sections of externally threaded roots are equipped with the radial shoulder extended, described female adapter has the internal thread coordinated with external screw thread, the second shoulder matched with shoulder, sealing ring is equipped with between described shoulder and the second shoulder, all also sealing surface is provided with between described shoulder and external screw thread root, described second shoulder is all also provided with between internal thread root the secondary sealing area mated with sealing surface.The beneficial effect of utility model is: tool joint not only sealing effectiveness is strong, prevents the leakage of liquid; And also have stress groove, change the stressing conditions of joint, thus extend the application life of joint.
Description
Technical field
The utility model relates to a kind of oil drilling tool, especially a kind of tool joint.
Background technology
Tool joint is the important component part of oil drill rocker, and its working environment is relatively severe, stressing conditions complexity very, and joint inside has liquid flows through.But the sealing performance of existing joint is not fine, makes joint in use procedure, has liquid and flow out from junction.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of tool joint of good sealing effect.
The utility model solves the technical scheme that its technical problem adopts: tool joint, the female adapter comprise male connection, being threaded with male connection, described male connection has three sections of axially extended external screw threads, described three sections of externally threaded roots are equipped with the radial shoulder extended, described female adapter has the internal thread coordinated with external screw thread, the second shoulder matched with shoulder, is equipped with sealing ring between described shoulder and the second shoulder.
Further, be all also provided with sealing surface between described shoulder and external screw thread root, described second shoulder is all also provided with between internal thread root the secondary sealing area mated with sealing surface.
Further, described sealing surface and secondary sealing area are all coated with Seal Oil lipid layer.
Further, described male connection link is provided with stress groove.
The beneficial effect of utility model is: tool joint not only sealing effectiveness is strong, prevents the leakage of liquid; And also have stress groove, change the stressing conditions of joint, thus extend the application life of joint.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Shown in figure: 1-male connection, 2-female adapter, 3-external screw thread, 4-internal thread, 5-shoulder, 6-second shoulder, 7-sealing ring, 8-sealing surface, 9-secondary sealing area, 10-stress groove.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, a kind of tool joint of the utility model, tool joint, the female adapter 2 comprise male connection 1, being threaded with male connection 1, described male connection 1 has three sections of axially extended external screw threads 3, and the root of described three sections of external screw threads 3 is equipped with the radial shoulder 5 extended, and described female adapter 2 has the internal thread 4 coordinated with external screw thread 3, the second shoulder 6 matched with shoulder 5, is equipped with sealing ring 7 between described shoulder 5 and the second shoulder 6.Shown in Fig. 1, this joint has three sealing rings 7 to seal, and improves sealing effectiveness greatly.
Further raising sealing effectiveness, therefore as preferred embodiment, be all also provided with sealing surface 8 between described shoulder 5 and external screw thread 3 root, described second shoulder 6 is all also provided with between internal thread 4 root the secondary sealing area 9 mated with sealing surface 8.This joint also has three sealing surfaces 8 as shown in Figure 1 like this.
Preferred embodiment, described sealing surface 8 and secondary sealing area 9 are all coated with Seal Oil lipid layer.Such three sealing surfaces 8, by oil sealing, form seal closure face.
Preferred embodiment, described male connection 1 link is provided with stress groove 10.Like this can the stress of releasing-joint end, thus improve the anti-twisting property of joint.
Claims (4)
1. tool joint, the female adapter (2) comprise male connection (1), being threaded with male connection (1), it is characterized in that: described male connection (1) has three sections of axially extended external screw threads (3), the root of described three sections of external screw threads (3) is equipped with the radial shoulder (5) extended, described female adapter (2) has the internal thread (4) coordinated with external screw thread (3), the second shoulder (6) matched with shoulder (5), is equipped with sealing ring (7) between described shoulder (5) and the second shoulder (6).
2. tool joint as claimed in claim 1, it is characterized in that: between described shoulder (5) and external screw thread (3) root, be all also provided with sealing surface (8), described second shoulder (6) be all also provided with the secondary sealing area (9) mated with sealing surface (8) between internal thread (4) root.
3. tool joint as claimed in claim 2, is characterized in that: described sealing surface (8) and secondary sealing area (9) are all coated with Seal Oil lipid layer.
4. tool joint as claimed in claim 2 or claim 3, is characterized in that: described male connection (1) link is provided with stress groove (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520042520.9U CN204419059U (en) | 2015-01-22 | 2015-01-22 | Tool joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520042520.9U CN204419059U (en) | 2015-01-22 | 2015-01-22 | Tool joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419059U true CN204419059U (en) | 2015-06-24 |
Family
ID=53469442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520042520.9U Expired - Fee Related CN204419059U (en) | 2015-01-22 | 2015-01-22 | Tool joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419059U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410024A (en) * | 2019-06-28 | 2019-11-05 | 中国石油天然气集团有限公司 | A kind of Varied pole piece nipple |
| CN111058779A (en) * | 2020-01-19 | 2020-04-24 | 中国地质科学院勘探技术研究所 | High-torsion-resistance high-pressure-resistance sealing drill rod joint |
-
2015
- 2015-01-22 CN CN201520042520.9U patent/CN204419059U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410024A (en) * | 2019-06-28 | 2019-11-05 | 中国石油天然气集团有限公司 | A kind of Varied pole piece nipple |
| CN111058779A (en) * | 2020-01-19 | 2020-04-24 | 中国地质科学院勘探技术研究所 | High-torsion-resistance high-pressure-resistance sealing drill rod joint |
| CN111058779B (en) * | 2020-01-19 | 2021-11-19 | 中国地质科学院勘探技术研究所 | High-torsion-resistance high-pressure-resistance sealing drill rod joint |
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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: 20150624 Termination date: 20160122 |
|
| EXPY | Termination of patent right or utility model |