CN2816327Y - High-strength large-pump tripping jointing device - Google Patents
High-strength large-pump tripping jointing device Download PDFInfo
- Publication number
- CN2816327Y CN2816327Y CN 200520092067 CN200520092067U CN2816327Y CN 2816327 Y CN2816327 Y CN 2816327Y CN 200520092067 CN200520092067 CN 200520092067 CN 200520092067 U CN200520092067 U CN 200520092067U CN 2816327 Y CN2816327 Y CN 2816327Y
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- CN
- China
- Prior art keywords
- utility
- model
- center
- pole
- strength large
- 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 high-strength large-pump tripping jointing device which comprises a center rod, a locking nut, a spring, a lock sleeve and an abutted paw. The utility model is characterized in that a spacing joint is connected to the lower end of the abutted paw by screws; a gap of 0.10 to 0.25 mm is arranged between the upper end of the spacing joint and the lower end of the center rod. The utility model has the advantages that the upstream and the downstream of an oil pumping rod are stressed on the spacing joint, the service life of the device is prolonged and oil yield is increased.
Description
Technical field
The utility model belongs to a kind of kit of oil field equipment, the big pump on-off connector of particularly a kind of high strength.
Background technology
On-off connector is the fastening means that oil well pump and sucker rod are coupled together, and existing on-off connector is because sucker rod and oil well pump piston rod can not be carried out spacingly, thereby it is stressed very big to dock pawl in oil pumping process, causes damage, influences oil production.
The utility model content
The purpose of this utility model provides the big pump on-off connector of a kind of high strength, makes sucker rod up and descending stressed on positioning joint, improves the application life of on-off connector, improves oil yield.
The purpose of this utility model is achieved by the following technical solution: it comprises center-pole, locking nut, spring, lock tube, butt joint pawl, it is characterized in that: the positioning joint that is threaded in the lower end of butt joint pawl, the upper end of positioning joint and center-pole lower end are provided with the gap of 0.10-0.25mm.
The utility model has the advantages that: make sucker rod up and descending stressed on positioning joint, improve the application life of on-off connector, improve oil yield.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
The specific embodiment
See Fig. 1,2, concrete structure is as follows: on the top of center-pole 3 rod collar screw thread 7 is set, connects locking nut 1 on it, and at the bottom of center-pole 3 assembling lock tube 4, assembling spring 2 between locking nut 1 and lock tube 4.The top of butt joint pawl 5 is provided with stressed step 8, stressed step 8 is inserted between lock tube 4 and the center-pole 3, and with ring platform 9 chucking of center-pole, positioning joint 6 is threaded in the lower end of butt joint pawl 5, positioning joint 6 lower ends are provided with sucker rod and connect internal thread 10, and upper end and center-pole 3 lower ends have the 0.10-0.25mm gap delta.
Claims (1)
1, the big pump on-off connector of a kind of high strength, it comprises center-pole, locking nut, spring, lock tube, butt joint pawl, it is characterized in that: the positioning joint that is threaded in the lower end of butt joint pawl, the upper end of positioning joint and center-pole lower end are provided with the gap of 0.10-0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520092067 CN2816327Y (en) | 2005-08-05 | 2005-08-05 | High-strength large-pump tripping jointing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520092067 CN2816327Y (en) | 2005-08-05 | 2005-08-05 | High-strength large-pump tripping jointing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816327Y true CN2816327Y (en) | 2006-09-13 |
Family
ID=36996134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520092067 Expired - Fee Related CN2816327Y (en) | 2005-08-05 | 2005-08-05 | High-strength large-pump tripping jointing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816327Y (en) |
-
2005
- 2005-08-05 CN CN 200520092067 patent/CN2816327Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060913 |