CN205400604U - Both ends jumping -up type oil pumping polished rod - Google Patents
Both ends jumping -up type oil pumping polished rod Download PDFInfo
- Publication number
- CN205400604U CN205400604U CN201620166885.7U CN201620166885U CN205400604U CN 205400604 U CN205400604 U CN 205400604U CN 201620166885 U CN201620166885 U CN 201620166885U CN 205400604 U CN205400604 U CN 205400604U
- Authority
- CN
- China
- Prior art keywords
- polished rod
- left end
- head
- diameter
- end head
- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a both ends jumping -up type oil pumping polished rod comprises middle polished rod, left end head and right -hand member head, and the end extends left end head and right -hand member head respectively about middle polished rod, and the left end head is the same with the diameter of right -hand member head, and the diameter of left end head and right -hand member head is greater than the diameter of middle polished rod, and left end head and right -hand member head all have external screw thread and two side cuts. The external screw thread is used for connecting, and two side cuts are used for the spanner centre gripping to rotate. The utility model discloses the diameter of left end head and right -hand member head is greater than the diameter of middle polished rod, and the bearing strength is high, and both ends all can be used, and the rate of utilization has improved the one time, has reduced use cost.
Description
Technical field
This utility model relates to the oil pumping polish rod used by a kind of oil field, particularly to a kind of two ends jumping-up type oil pumping polish rod.
Background technology
Oil pumping polish rod is one of necessary instrument of oil field machinery oil.The oil pumping polish rod that the whole nation is commonly used at present, only plain edition oil pumping polish rod and one end jumping-up type oil pumping polish rod two kinds.
Plain edition oil pumping polish rod two ends are identical sucker rod screw thread, and shank diameter is more than two ends screw thread maximum outside diameter, when its advantage is one end serious wear, can turn around to be continuing with.Its shortcoming is that threaded performance is bad, and bearing strength is not high.
One end jumping-up type oil pumping polish rod is one end jumping-up of polished rod and processes sucker rod screw thread, and the other end not jumping-up is also processed into regular screw threads, and its advantage is that the threaded performance of upset end is good, and bearing strength is high.Its shortcoming is that two ends can not exchange.
Summary of the invention
The purpose of this utility model is to provide a kind of two ends jumping-up type oil pumping polish rod, and after the jumping-up of this utility model two ends, bearing strength is high, and two ends all can use, and utilization rate is doubled, and reduces use cost.
This utility model is to be made up of middle polished rod, left end head and right end, the left and right end of middle polished rod each extends over out left end head and right end, left end head is identical with the diameter of right end, the diameter of left end head and right end is more than the diameter of middle polished rod, and left end head and right end are respectively provided with external screw thread and two trimmings.External screw thread is used for connecting, and two trimmings are for spanner nip rotation.
The beneficial effects of the utility model:
The diameter of this utility model left end head and right end is more than the diameter of middle polished rod, and bearing strength is high, and two ends all can use, and utilization rate is doubled, and reduces use cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A A sectional view in Fig. 1.
Detailed description of the invention
Refer to shown in Fig. 1 and Fig. 2, this utility model is to be made up of middle polished rod 1, left end head 2 and right end 3, the left and right end of middle polished rod 1 each extends over out left end head 2 and right end 3, left end head 2 is identical with the diameter of right end 3, the diameter of left end head 2 and right end 3 is more than the diameter of middle polished rod 1, and left end head 2 and right end 3 are respectively provided with external screw thread 4 and two trimmings 5.External screw thread 4 is used for connecting, and two trimmings 5 are for spanner nip rotation.Fig. 2 is two trimming 5 schematic diagrams of left end head 2 and right end 3.
Claims (1)
1. a two ends jumping-up type oil pumping polish rod, it is characterized in that: be made up of middle polished rod (1), left end head (2) and right end (3), the left and right end of middle polished rod (1) each extends over out left end head (2) and right end (3), left end head (2) is identical with the diameter of right end (3), the diameter of left end head (2) and right end (3) is more than the diameter of middle polished rod (1), and left end head (2) and right end (3) are respectively provided with external screw thread (4) and two trimmings (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620166885.7U CN205400604U (en) | 2016-03-07 | 2016-03-07 | Both ends jumping -up type oil pumping polished rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620166885.7U CN205400604U (en) | 2016-03-07 | 2016-03-07 | Both ends jumping -up type oil pumping polished rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205400604U true CN205400604U (en) | 2016-07-27 |
Family
ID=56444928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620166885.7U Expired - Fee Related CN205400604U (en) | 2016-03-07 | 2016-03-07 | Both ends jumping -up type oil pumping polished rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205400604U (en) |
-
2016
- 2016-03-07 CN CN201620166885.7U patent/CN205400604U/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 | ||
| 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: 20160727 Termination date: 20170307 |