CN2099832U - Vertically inserted type hollow oil-pumping rod - Google Patents
Vertically inserted type hollow oil-pumping rod Download PDFInfo
- Publication number
- CN2099832U CN2099832U CN 91208660 CN91208660U CN2099832U CN 2099832 U CN2099832 U CN 2099832U CN 91208660 CN91208660 CN 91208660 CN 91208660 U CN91208660 U CN 91208660U CN 2099832 U CN2099832 U CN 2099832U
- Authority
- CN
- China
- Prior art keywords
- oil
- pumping rod
- rod
- vertically inserted
- type hollow
- 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.)
- Granted
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Abstract
The utility model provides a vertically inserted type hollow oil-pumping rod, which is characterized in that the connecting end of an oil-pumping rod is provided with inner screws or outer screws, and the wall thickness of the connecting end is larger than that of the oil-pumping rod. The vertically inserted type hollow oil-pumping rod causes the pipe hoop of a connecting piece to omit between the oil-pumping rods in the prior art; the utility model is a fitting of the oil extraction device in oilfields, and is simultaneously suitable for connecting other pipes. The utility model has the advantages of good sealing effect, and high intensity.
Description
The utility model relates to a kind of sucker rod, belongs to the accessory of oil production equipment.
Sucker rod two ends in the oil production equipment are screw threads, and the connection between the sucker rod is with pipe collar the sucker rod that two radicles have screw thread to be screwed in together.The shortcoming of this connected mode is: intensity is low, and seal point is many.
The purpose of this utility model is: a kind of sucker rod without the pipe collar connection is provided, and it can improve bonding strength, reduces seal point.
The technical solution of the utility model is: a kind of direct insertion hollow rod, have the body of rod, and it is characterized in that: have internal thread or externally threaded body of rod link, its wall thickness is all greater than the wall thickness of the body of rod.
The sucker rod link of present technique has internal thread and external screw thread, so the connection between the sucker rod without pipe collar, directly is screwed in together, compared with the prior art easy to operate also can save steel.Originally installed with pipe collar and will tighten two tie points, and only tightened a tie point now, thereby improved installation effectiveness.Because tie point reduces half than original, then safety in utilization has improved, need the position of sealing also to be a half, and original sealing ring is installed on the pipe collar, be that radial load compresses, the sealing ring of present technique is installed on the end face of sucker rod male end, is compressed by the radial load of female end and axial force, so sealing effectiveness was better.Because the end wall thickness of sucker rod increases, its wall thickness is still greater than body of rod wall thickness after the processing screw thread, so the strength ratio prior art improves.
Accompanying drawing is the package assembly schematic diagram of direct insertion hollow rod.
Implement side below in conjunction with one of the present utility model of description of drawings.
Its external diameter of the female end of sucker rod coupling part (1), interior diameter and wall thickness are respectively greater than external diameter, interior diameter and the wall thickness of the body of rod (4) among the figure.The wall thickness of male end (2) and maximum outside diameter are respectively greater than the wall thickness and the external diameter of the body of rod (4).The external diameter of the interior diameter of female end (1) and male end (2) is a threaded engagement, and the end face of female end (1) is pressed on the shoulder of male end (2), and sealing ring (3) is arranged on the shoulder.
Claims (1)
1, a kind of direct insertion hollow rod has the body of rod, it is characterized in that: have internal thread or externally threaded body of rod link, its wall thickness is all greater than the wall thickness of the body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91208660 CN2099832U (en) | 1991-05-19 | 1991-05-19 | Vertically inserted type hollow oil-pumping rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91208660 CN2099832U (en) | 1991-05-19 | 1991-05-19 | Vertically inserted type hollow oil-pumping rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2099832U true CN2099832U (en) | 1992-03-25 |
Family
ID=4917823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91208660 Granted CN2099832U (en) | 1991-05-19 | 1991-05-19 | Vertically inserted type hollow oil-pumping rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2099832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470195A (en) * | 2013-10-08 | 2013-12-25 | 刘铁 | High-temperature resisting and high-pressure resisting injecting and extracting integrated double-layer hollow sucker rod |
-
1991
- 1991-05-19 CN CN 91208660 patent/CN2099832U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470195A (en) * | 2013-10-08 | 2013-12-25 | 刘铁 | High-temperature resisting and high-pressure resisting injecting and extracting integrated double-layer hollow sucker rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |