CN201381972Y - Clamp spring rod type oil-well pump - Google Patents
Clamp spring rod type oil-well pump Download PDFInfo
- Publication number
- CN201381972Y CN201381972Y CN200920013089U CN200920013089U CN201381972Y CN 201381972 Y CN201381972 Y CN 201381972Y CN 200920013089 U CN200920013089 U CN 200920013089U CN 200920013089 U CN200920013089 U CN 200920013089U CN 201381972 Y CN201381972 Y CN 201381972Y
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- CN
- China
- Prior art keywords
- sealed
- cylinder
- valve assembly
- pump
- clamp spring
- 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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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model belongs to an oil-well pump, and particularly relates to a clamp spring rod type oil-well pump, which comprises a fixed valve assembly, a traveling valve assembly, a plunger piston, a pump cylinder, a hollow rod, a flexible clamp spring, a sealed outer cylinder, a sealed cylinder and a sealed mandrel. The oil-well pump is characterized in that the flexible clamp spring is ring-shaped and arranged between the pump cylinder and the sealed cylinder; the sealed cylinder is arranged between the sealed mandrel and the sealed outer cylinder; the plunger piston is in threaded connection with the hollow rod and mounted in the pump cylinder; the pump cylinder is in threaded connection with the fixed valve assembly and the traveling valve assembly; and the sealed mandrel is connected with the pump cylinder. The utility model has the advantages of good sealing effect, high oil extraction efficiency, no damage of the sealed cylinder during operation and reliable anchoring operation.
Description
Technical field
The utility model belongs to a kind of oil well pump, particularly a kind of jump ring rod-type pumping unit.
Background technique
At present, deep-well oil pumping or notes are adopted the most lock dog rod-type pumping units that adopt of tubing string one time, and the sealing means of employing is a conical surface seal, and poorly sealed between pump and the tubing string, oil recovery efficiency is low, adopts the lock dog grappling, and lock dog mechanism can not open sometimes, causes pump and tubing string stuck.
Summary of the invention
In order to overcome the problems referred to above, the utility model provides a kind of jump ring rod-type pumping unit, and this oil well pump adopts the rubber axial compression, and sealing of radial expansion material filling type and jump ring grappling have solved problems such as poorly sealed and pump and tubing string be stuck.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of jump ring rod-type pumping unit, form by standing valve assembly, travelling valve assembly, plunger, pump barrel, hollow stem, elastic circlip, sealed outer cylinder, sealing drum and sealing axle, its special way is: elastic circlip is annular, between pump barrel and sealing drum, sealing drum is between sealing axle and sealed outer cylinder, plunger is threaded with hollow stem, be contained in the pump barrel, pump barrel is threaded with standing valve assembly, travelling valve assembly, and the sealing axle is connected with pump barrel.
The beneficial effects of the utility model are: good sealing effect, and the pumping efficiency height, sealing drum is not damaged in operation process, and grappling is reliable.
Description of drawings
Accompanying drawing is a schematic representation of the present utility model.
In the accompanying drawing: 1, standing valve assembly 2, travelling valve assembly 3, plunger 4, pump barrel 5, hollow stem 6, elastic circlip 7, sealed outer cylinder 8, sealing drum 9, sealing axle
Embodiment
An embodiment is described in conjunction with the accompanying drawings:
In the accompanying drawing: elastic circlip 6 is an annular, between pump barrel 4 and sealing drum 8, sealing drum 8 is between sealing axle 9 and sealed outer cylinder 7, plunger 3 is threaded with hollow stem 5, be contained in the pump barrel 4, pump barrel 4 is threaded with standing valve assembly 1, travelling valve assembly 2, and sealing axle 9 is connected with pump barrel 4.
Claims (1)
1, a kind of jump ring rod-type pumping unit, form by standing valve assembly, travelling valve assembly, plunger, pump barrel, hollow stem, elastic circlip, sealed outer cylinder, sealing drum and sealing axle, it is characterized in that: elastic circlip is annular, between pump barrel and sealing drum, sealing drum is between sealing axle and sealed outer cylinder, and plunger is threaded with hollow stem, is contained in the pump barrel, pump barrel is threaded with standing valve assembly, travelling valve assembly, and the sealing axle is connected with pump barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920013089U CN201381972Y (en) | 2009-04-20 | 2009-04-20 | Clamp spring rod type oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920013089U CN201381972Y (en) | 2009-04-20 | 2009-04-20 | Clamp spring rod type oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201381972Y true CN201381972Y (en) | 2010-01-13 |
Family
ID=41525449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920013089U Expired - Fee Related CN201381972Y (en) | 2009-04-20 | 2009-04-20 | Clamp spring rod type oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201381972Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837761A (en) * | 2017-03-27 | 2017-06-13 | 盐城华远石油机械有限公司 | A kind of long plunger sand control can just wash energy-conserving and environment-protective oil well pump |
-
2009
- 2009-04-20 CN CN200920013089U patent/CN201381972Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837761A (en) * | 2017-03-27 | 2017-06-13 | 盐城华远石油机械有限公司 | A kind of long plunger sand control can just wash energy-conserving and environment-protective oil well pump |
| CN106837761B (en) * | 2017-03-27 | 2018-04-13 | 盐城华远石油机械有限公司 | A kind of long plunger sand control can just wash energy conservation and environmental protection oil well pump |
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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: 20100113 Termination date: 20100420 |