CN202249898U - Multifunctional sealing device for polished rod - Google Patents
Multifunctional sealing device for polished rod Download PDFInfo
- Publication number
- CN202249898U CN202249898U CN201120348574XU CN201120348574U CN202249898U CN 202249898 U CN202249898 U CN 202249898U CN 201120348574X U CN201120348574X U CN 201120348574XU CN 201120348574 U CN201120348574 U CN 201120348574U CN 202249898 U CN202249898 U CN 202249898U
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- CN
- China
- Prior art keywords
- sleeve
- upper cylinder
- sealing device
- top cylinder
- overcoat
- 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 a multifunctional sealing device for a polished rod, and is characterized in that an upper cylinder (3) is arranged on the multifunctional sealing device; a pressure cap (1) is arranged on the upper cylinder (3); a first seal ring (2) is arranged between the pressure cap (1) and the upper cylinder (3); a slope regulation outer sleeve (4) is sleeved on the lower end of the upper cylinder (3); the lower end of the slope regulation outer sleeve (4) is embedded in an inner spherical sleeve (7); a second seal ring (5) and a third seal ring (6) are arranged between the slope regulation outer sleeve (4) and the inner spherical sleeve (7); the lower end of the inner spherical sleeve (7) is arranged on an inner plate (8); the inner plate (8) is sleeved with a lower sleeve (11) through an outer sleeve (9); a fourth seal ring (10) is arranged between the inner plate (8) and the lower sleeve (11); a thread (12) is formed on the lower sleeve (11); and a rubber packing (13) with high wearing resistance is arranged in the upper cylinder (3). As the slope regulation outer sleeve (4) is matched with the inner spherical sleeve (7), universal section type regulation can be fulfilled under the premise that the drift diameter of the polished rod is guaranteed; and as the packing in the upper cylinder (3) adopts the rubber packing (13) made of special high-wearing resistant PA (polyamide), the multifunctional sealing device is convenient to disassemble and assemble, and has a favorable high-temperature sealing performance.
Description
Technical field
The utility model belongs to the oil production equipment technical field, relates in particular to a kind of sealing device that is used for the oil field shaft mouth oil-extractor polish-rod.
Background technology
Pumping and wellhead rod seals, long plagued the production operation and management problems in the process. Since various engineering factors. Razor often occur following problems. Such as wellhead and pumping rod misalignment caused by the deflection of light: the light rod mill biased and seal packing box packing serious damage. Wellhead vulnerability caused by the formation of pollution, light rod seal to prevent oil spills. Live - Taste increased filler. Locking pressure cap also caused increased friction. In the operation of the pumping power consumption increases. In addition. Because of its short life cycle. Often need to replace the seal fill Dou. This has resulted in a lot of material waste. Also seriously affect the safe operation of the pumping unit. Increase the difficulty of site management, increasing the site operator's labor intensity sneeze, and to aging well production decreased significantly.
Summary of the invention
The purpose of the utility model be to above-mentioned this-technical barrier, design-kind of environmental protection and energy-saving multifunctional polish rod seal device.The technical scheme that the purpose purpose of realization the utility model is taked is: this multifunctional polish rod seal device, be provided with top cylinder, and top cylinder is provided with pressure cap; First sealing ring is set between pressure cap and the top cylinder; The lower end of top cylinder is with transfers oblique overcoat, transfers the lower end of oblique overcoat to be sleeved on endosphere and puts, and transfers and is provided with second sealing ring and the 3rd sealing ring between oblique overcoat and the interior ball cover; On coiling in the lower end of interior ball cover is located at; In dish utilize overcoat to be sleeved on trapping, lining dish with trap between be provided with the 4th sealing ring, time put and to be provided with screw thread.Be provided with the strong rubber packing of abrasion resistance in the said top cylinder.
The utility model rigorous design, structure tube list, handled easily. transfer oblique overcoat 4 and interior ball cover 7 to cooperate, under the prerequisite that guarantees the polished rod latus rectum. can adjust significantly in the plane, reach the requirement of not hanging, not bumping; And can do the adjustment of cardan joint formula, to reach anti-inclined to one side purpose.Filler in the top cylinder 3 adopts the PA of the high epistasis of special, wear-resistant to have the dismounting of being convenient to and good elevated-temperature seal is arranged as lacquer disk(-sc) root 13..Can be the Green Product of update. have a wide range of applications.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure, 1, pressure cap, 2, sealing ring, 3, top cylinder, 4, transfer oblique overcoat, 5, sealing ring, 6, sealing ring, 7, interior ball cover, 8, the lining dish, 9, overcoat, 10, sealing ring, 11, trap, 12, screw thread, 13, as the lacquer disk(-sc) root.
The specific embodiment
With reference to accompanying drawing, this multifunctional polish rod seal device is provided with top cylinder 3; Top cylinder 3 is provided with pressure cap 1, and first sealing ring 2 is set between pressure cap 1 and the top cylinder 3, and the lower end of top cylinder 3 is with transfers oblique overcoat 4; Transfer the lower end of oblique overcoat 4 to be sleeved on the interior ball cover 7; Transfer to be provided with second sealing ring 5 and the 3rd sealing ring 6 between oblique overcoat 4 and the interior ball cover 7, in the lower end of interior ball cover 7 is located on the dish 8, lining dish 8 utilizes overcoat 9 11 to be sleeved on trapping; In dish 8 and trap and be provided with the 4th sealing ring 10 between 11, trapping 11 is provided with screw thread 12.Be provided with the strong rubber packing 13 of abrasion resistance in the said top cylinder 3.
During use, utilize screw thread 12 to be tightened on the oil pipe, polished rod is done in the sealing device and is pumped, and transfers oblique overcoat 4 and interior ball cover 7 to cooperate, under the prerequisite that guarantees the polished rod latus rectum. and can adjust significantly in the plane, reach the requirement of not hanging, not bumping; And can do the adjustment of cardan joint formula, to reach anti-inclined to one side purpose.Filler in the top cylinder 3 adopts the PA rubber packing 13. rubber packings 13 of the high epistasis of special, wear-resistant that polished rod is held tightly, avoids crude oil to leak, and has the dismounting of being convenient to and good elevated-temperature seal is arranged.
Claims (1)
1. multifunctional polish rod seal device; It is characterized in that: the sealing device is provided with top cylinder (3), and top cylinder (3) is provided with pressure cap (1), between pressure cap (1) and the top cylinder (3) first sealing ring (2) is set; The lower end of top cylinder (3) is with transfers oblique overcoat (4); Transfer the lower end of oblique overcoat (4) to be sleeved on the interior ball cover (7), transfer to be provided with second sealing ring (5) and the 3rd sealing ring (6) between oblique overcoat (4) and the interior ball cover (7), coil in the lower end of interior ball cover (7) is located on (8); In the dish (8) utilize overcoat (9) to be sleeved on trap (11); In dish (8) and trap and be provided with the 4th sealing ring (10) between (11), trap (11) are provided with screw thread (12), are provided with the strong rubber packing (13) of abrasion resistance in the said top cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120348574XU CN202249898U (en) | 2011-09-18 | 2011-09-18 | Multifunctional sealing device for polished rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120348574XU CN202249898U (en) | 2011-09-18 | 2011-09-18 | Multifunctional sealing device for polished rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249898U true CN202249898U (en) | 2012-05-30 |
Family
ID=46111157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120348574XU Expired - Fee Related CN202249898U (en) | 2011-09-18 | 2011-09-18 | Multifunctional sealing device for polished rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882109A (en) * | 2019-03-11 | 2019-06-14 | 中国石油天然气股份有限公司 | A kind of limit tune just its blowout prevention box of anti-spraying mechanism and application |
-
2011
- 2011-09-18 CN CN201120348574XU patent/CN202249898U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882109A (en) * | 2019-03-11 | 2019-06-14 | 中国石油天然气股份有限公司 | A kind of limit tune just its blowout prevention box of anti-spraying mechanism and application |
| CN109882109B (en) * | 2019-03-11 | 2021-05-14 | 中国石油天然气股份有限公司 | Limit deviation-adjusting blowout prevention mechanism and blowout prevention box using same |
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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: 20120530 Termination date: 20120918 |