CN2713126Y - Polished rod sealer - Google Patents
Polished rod sealer Download PDFInfo
- Publication number
- CN2713126Y CN2713126Y CN 200420010565 CN200420010565U CN2713126Y CN 2713126 Y CN2713126 Y CN 2713126Y CN 200420010565 CN200420010565 CN 200420010565 CN 200420010565 U CN200420010565 U CN 200420010565U CN 2713126 Y CN2713126 Y CN 2713126Y
- Authority
- CN
- China
- Prior art keywords
- semi
- ring
- circle
- semicircle
- spacer ring
- 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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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a polish rod sealer, comprising a pressure cap and a shell body, and in the shell body, the couples of semi-circle spacer rings without conducting the magnet are installed. In each couple of semi-circle spacer rings, a semi-circle magnet ring with the opposite polarity is installed, and the diameter of the semi-circle magnet ring is a little smaller than that of the semi-circle spacer ring. Between the semi-circle magnet ring and the semi-circle spacer ring, a magnetic flow body is installed. The pressure cap and the shell body are in the screwed connection limiting the spacer ring in the shell. The utility model has the advantages of simple structure, good sealing effect, little abrasion to the polish rod, etc.
Description
Technical field
The utility model relates to a kind of polished rod sealer, belongs to the oil field shaft mouth device.
Background technology
Adopting at the most of machine of China at present uses rubber filler such as rectangular rubber circle to realize sealing in the mouth of pumped oil well device.Use rubber seal to have following shortcoming: 1, rubber is easily aging, and this just needs the periodic replacement rubber element or regulates packing; 2, have very big frictional force between polished rod and the seal, the wearing and tearing that it causes can be quickened the damage of rubber parts.
Summary of the invention
The purpose of this utility model is exactly the shortcoming that overcomes prior art, and a kind of polished rod sealer is provided.
The purpose of this utility model is achieved in that polished rod sealer is made up of pressure cap and housing, paired non-magnetic semicircle spacer ring is housed in housing, opposite polarity semicircle magnet ring is housed in every pair spacer ring, the diameter of semicircle magnet ring is slightly less than the semicircle spacer ring, between semicircle magnet ring and semicircle spacer ring, magnetic fluid is housed, pressure cap is threaded with housing, and spacer ring is limited in the housing.
The utlity model has simple in structure, good sealing effect, to advantages such as the wearing and tearing of polished rod are few.
Description of drawings
Fig. 1: the utility model structural representation;
1-pressure cap, 2-semicircle magnet ring, 3-spacer ring, 4-magnetic fluid, 5-housing, 6-polished rod among the figure;
The specific embodiment
As shown in Figure 1, polished rod sealer is made up of pressure cap 1, housing 5, paired non-magnetic semicircle spacer ring 3 is housed in housing 5, opposite polarity semicircle magnet ring 2 is housed in every pair spacer ring 3, magnet ring is the rare-earth Nd-Fe-B magnet ring, and the diameter of semicircle magnet ring 2 is slightly less than semicircle spacer ring 3, and spacer ring 3 just can cover magnet ring 2 like this, between semicircle magnet ring 2 and semicircle spacer ring 3 magnetic fluid 4 is housed, magnetic fluid 4 is by Fe
3O
4The machine oil that powder and glycerine or viscosity are bigger evenly mixes, and pressure cap 1 is threaded with housing 5, and spacer ring 3 is limited in the housing 5.
Claims (1)
1, a kind of polished rod sealer, it is made up of pressure cap (1) and housing (5), it is characterized in that: paired non-magnetic semicircle spacer ring (3) is housed in housing (5), opposite polarity semicircle magnet ring (2) is housed in every pair spacer ring (3), the diameter of semicircle magnet ring (2) is slightly less than semicircle spacer ring (3), between semicircle magnet ring (2) and semicircle spacer ring (3) magnetic fluid (4) is housed, pressure cap (1) is threaded with housing (5), and spacer ring (3) is limited in the housing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010565 CN2713126Y (en) | 2004-04-05 | 2004-04-05 | Polished rod sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010565 CN2713126Y (en) | 2004-04-05 | 2004-04-05 | Polished rod sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2713126Y true CN2713126Y (en) | 2005-07-27 |
Family
ID=34870033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420010565 Expired - Fee Related CN2713126Y (en) | 2004-04-05 | 2004-04-05 | Polished rod sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2713126Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493001A (en) * | 2008-01-21 | 2009-07-29 | 邓海波 | Magnetic fluid polished rod sealer for oil production in oilfield |
| CN113216888A (en) * | 2021-05-13 | 2021-08-06 | 烟台大学 | Novel magnetic sealing structure device for polished rod |
-
2004
- 2004-04-05 CN CN 200420010565 patent/CN2713126Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493001A (en) * | 2008-01-21 | 2009-07-29 | 邓海波 | Magnetic fluid polished rod sealer for oil production in oilfield |
| CN113216888A (en) * | 2021-05-13 | 2021-08-06 | 烟台大学 | Novel magnetic sealing structure device for polished rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZYZJ PETROLEUM EQUIPMENT CO., LTD. Free format text: FORMER NAME: MACHINERY GENERAL PLANT, ZHONGYUAN PETROLEUM PROSPECTING BUREAU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 457001 No. 365, Daqing Road, Puyang, Henan Patentee after: Zhongyuan Zongji Petroleum Equipment Co., Ltd. Address before: 457001 No. 365, Daqing Road, Puyang, Henan Patentee before: Henan ZYZJ Petroleum Equipment Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050727 Termination date: 20110405 |