CN2687327Y - Auxiliary pumping device - Google Patents
Auxiliary pumping device Download PDFInfo
- Publication number
- CN2687327Y CN2687327Y CN 200420007300 CN200420007300U CN2687327Y CN 2687327 Y CN2687327 Y CN 2687327Y CN 200420007300 CN200420007300 CN 200420007300 CN 200420007300 U CN200420007300 U CN 200420007300U CN 2687327 Y CN2687327 Y CN 2687327Y
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- centralizer body
- oil
- rod
- pumping device
- 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 an auxiliary pumping device, solving the problem that the supporting part on the existing oil-increasing short section is not loaded and unloaded easily with a small area for oil to pass through, and is characterized in that the lower part of a T-shaped connecting rod (1) is provided with an external thread provided with a lock cap (3), and the difference between the inside diameter of the supporting part (2) and the external diameter of the external thread of the connecting rod (1) is a positive number. The supporting part on the auxiliary pumping device can be loaded and unloaded easily, which is good for reusing the rod body, and the utility model has the advantages of low cost, large area of passage and safety.
Description
Technical field:
The utility model relates to the used a kind of aid of plunger oil-well pump in the oil recovery field, oil field, belongs to a kind of exhausting-aid device.
Background technology:
At present in oil recovery process, applied plunger oil-well pump is for solving the rod and tube partial-wear problem, the centralizer of a main centralizing function has been installed in flow string or has been helped the Oil-increasing pup joint of taking out the centralizing function of holding concurrently, these instruments have the effect of paraffin cutting simultaneously, wherein more satisfactory instrument is an Oil-increasing pup joint, Oil-increasing pup joint is made up of the body of rod and centralizer body, the body of rod is that its two ends of whole steel part are threaded with sucker rod, the upper and lower of connection of thread is fixed with boss, centralizer body is the nylon spare of directly annotating on the body of rod, and centralizer body can be free to slide and rotate on the body of rod.Long-term and the tube inner wall friction of centralizer body may wear to a certain degree and will scrap, and because of centralizer body can not directly unload from the body of rod, causes whole Oil-increasing pup joint to be scrapped in the lump.Body of rod wearing and tearing are lighter, have recycling and are worth, and must take measures centralizer body is removed if think recycling, cause unnecessary cost input.In addition, present centralizer body mostly is four runners or five runners, and area of passage is little.
Summary of the invention:
In order to overcome the deficiency that centralizer body on the existing Oil-increasing pup joint is difficult for being loaded and unloaded and area of passage is little, the utility model provides a kind of exhausting-aid device, centralizer body on this exhausting-aid device is loaded and unloaded very easily, helps the recycling of the body of rod, has that use cost is low, area of passage reaches safety feature greatly.
The technical scheme that the utility model can be taked is: this exhausting-aid device comprises connecting rod and centralizer body, connecting rod is that T-shape and lower end have external screw thread, be equipped with locking cap on the external screw thread of connecting rod, the difference of the internal diameter of centralizer body and the major diameter of external thread of connecting rod is a positive number.
The runner of centralizer body is three runners.
The beneficial effects of the utility model are: owing to take such scheme, with body of rod design mix body structure, promptly locking cap forms by being threaded with connector, after centralizer body is scrapped locking cap is backed out, centralizer body is easy to unload from connector, helps the recycling of steel part connector; Centralizer body also is easy to be enclosed within on the connector when mounted; Reduced the cost of raw material, assembling and manufacturing procedure are simple, and are convenient to on-the-spot the installation.The runner of centralizer body is three runners, and area of passage is big, the little pumping efficiency height of resistance.
Description of drawings:
Fig. 1 is a structure partial sectional view of the present utility model.
1-connecting rod among the figure, 2-centralizer body, 3-locking cap.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
Shown in Fig. 1, this exhausting-aid device is with original body of rod design mix body structure, comprise connecting rod 1 and centralizer body 2, connecting rod 1 has external screw thread for T-shape and lower end, be equipped with locking cap 3 on the external screw thread of connecting rod 1, the difference of the external diameter of the internal diameter of centralizer body 2 and connecting rod 1 is a positive number, is convenient to centralizer body 2 and is enclosed within on the connecting rod 1.After centralizer body 2 is scrapped locking cap 3 is backed out, centralizer body 2 is easy to unload from connector 1, helps the recycling of connector 1, and centralizer body 2 also is easy to be enclosed within on the connector 1 when mounted.The external screw thread of the connecting rod 1 of locking cap 3 belows is threaded with rod collar, screw locking cap 3, locking cap 3 has played the locking effect, make that threading off can not appear in connecting rod 1 and rod collar, phenomenon releases, use safe and reliable, the raw material that reduced connector 1 have simultaneously promptly reduced raw-material use cost, have alleviated the overall weight of exhausting-aid device again.The runner of centralizer body 2 is three runners, and area of passage is big, the little pumping efficiency height of resistance; With the contraction in length of connecting rod 1, promptly shortened the sliding stroke of centralizer body on connecting rod 1, help loss of plunger stroke thereby reduce.
During actual the use, the upstroke of oil pumping, locking cap 3 in the lower contact of the lower surface of centralizer body 2 and connecting rod 1 touches mutually, the drain runner of sealing centralizer body 2, play the effect of oil pumping plunger, reduce the pressure of oil column, and then reduce the wastage raising pump efficiency of oil well pump, reach and help the effect of taking out oil pump plunger piston.The down stroke of oil pumping, connecting rod 1 centralizer body 2 upwards slides last returning under the oily stream effect relatively, locking cap 3 in the lower contact of the lower surface of centralizer body 2 and connecting rod 1 separates, open the drain runner of centralizer body 2, oil column passes through oil-pumping aid, and centralizer body 2 is because its spiral drain runner rotates the uniform wear long service life under the effect of oil stream.In addition, this exhausting-aid device slides up and down in oil pipe, plays the effect of paraffin scraper, and change its up and down behind the connecting thread as becoming the button pipe nipple.
Claims (2)
1, a kind of exhausting-aid device, comprise connecting rod (1) and centralizer body (2), it is characterized in that: connecting rod (1) is equipped with locking cap (3) for T-shape and lower end have external screw thread on the external screw thread of connecting rod (1), and the difference of the major diameter of external thread of the internal diameter of centralizer body (2) and connecting rod (1) is a positive number.
2, exhausting-aid device according to claim 1 is characterized in that: the runner of centralizer body (2) is three runners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420007300 CN2687327Y (en) | 2004-03-22 | 2004-03-22 | Auxiliary pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420007300 CN2687327Y (en) | 2004-03-22 | 2004-03-22 | Auxiliary pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2687327Y true CN2687327Y (en) | 2005-03-23 |
Family
ID=34668176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420007300 Expired - Fee Related CN2687327Y (en) | 2004-03-22 | 2004-03-22 | Auxiliary pumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2687327Y (en) |
-
2004
- 2004-03-22 CN CN 200420007300 patent/CN2687327Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |