CN201802337U - Energy-saving pumping well head sealer - Google Patents
Energy-saving pumping well head sealer Download PDFInfo
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- CN201802337U CN201802337U CN2010201681591U CN201020168159U CN201802337U CN 201802337 U CN201802337 U CN 201802337U CN 2010201681591 U CN2010201681591 U CN 2010201681591U CN 201020168159 U CN201020168159 U CN 201020168159U CN 201802337 U CN201802337 U CN 201802337U
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Abstract
The utility model discloses an energy-saving pumping well head sealer which is characterized in that: a packing bushing (2) is arranged in the inner cavity of a sealer casing (1), and oil passage holes (18) are uniformly distributed on the packing bushing; a packing body (17) with an oil guide layer (19) is arranged in the cavity of the packing bushing (2) and impregnated with the lubricating oil through the oil passage holes (18); the lubrication between the packing body (17) and a polished rod (14) is continuous, complete and uniform by means of adsorption and transfer of the lubricating oil through the oil guide layer (19), so as to reduce the wear damage of the polished rod (14) and the packing body (17), reduce the frictional resistance and reduce the energy consumption of the pumping unit; and the packing bushing (2) moves radially in the inner cavity of the sealer casing (1) with the displacement amount ranging from 0.5 mm to 1.6 mm, so that the packing bushing (2) and the polished rod (14) are concentric, thereby solving the problem of eccentric wear between the polished rod (14) and the packing body (17). The utility model reduces the wear damage of the polished rod (14) and the packing body (17), reduces the frictional resistance and improves the sealing performance of the pumping well head sealer.
Description
Technical field
The utility model relates to the mouth of pumped oil well corollary apparatus in the oil exploitation, and definite saying so seals the energy-saving sealer for mouth of pumped oil well of usefulness between a kind of mouth of pumped oil well and the oil pumping polish rod.
Background technology
In the present oil exploitation, oil pumping polish rod is done in mouth of pumped oil well and is pumped, and the main inside of sealing problem between the two is equipped with that the sealer of packing body realizes.And present sealer does not possess the function of continuous lubrication oil pumping polish rod and packing body, is the dry type friction fully between the packing body in oil pumping polish rod and the sealer, has quickened the wearing and tearing of oil pumping polish rod and packing body like this.
In addition, because the defective that oil pumper and mouth of pumped oil well exist when making and install, and the variation on the basis, ground of oil pumper and mouth of pumped oil well, the relative position that causes oil pumper and mouth of pumped oil well changes, thereby cause the decentraction of oil pumping polish rod and mouth of pumped oil well, the eccentric wear phenomenon is serious between the packing body of generation oil pumping polish rod and sealer inside.
More than two kinds of situations, cause the wearing and tearing aggravation of the packing body of oil pumping polish rod and sealer inside, needed frequent replacing oil pumping polish rod and the packing body in the sealer, not only increased the maintenance cost of mouth of pumped oil well, influence the output of mouth of pumped oil well, increased the energy consumption of oil pumper simultaneously.
The content of utility model
The technical problems to be solved in the utility model is to provide a kind of can make continuous around the lateral surface of the top of packing body and packing body the packing body being soaked into of lubrication oil, by of absorption, conduction and the storage of packing body to lubrication oil, making between packing body and the oil pumping polish rod can be continuously, fully, lubricated uniformly, thereby reduce the wearing and tearing of oil pumping polish rod and packing body, reduce frictional resistance, reduce the energy consumption of oil pumper.
Another technical problem to be solved in the utility model is to make the packing body of sealer inside and oil pumping polish rod to keep concentric, the eccentric wear phenomenon that reduces between packing body and the oil pumping polish rod takes place, reduce the wearing and tearing of oil pumping polish rod and packing body, improve the sealing performance of sealer.
The problems referred to above of the present utility model are to solve by the sealer that following structure is provided, this energy-saving sealer for mouth of pumped oil well, comprise: there is bulb the below of sealer housing, bulb, ball cup, bulb pressure cap, pressure cap, dividing plate, one way valve, tank filler sleeve plugging device, packing lining, packing body, sealing mat, described sealer housing, be fixed in the cavity of ball cup by last sealing ring and lower seal, and lock by the bulb pressure cap; Described pressure cap is arranged on the top of sealer housing, between the two by being threaded; It is the oil chamber that described pressure cap is divided into its upper section cavity by dividing plate; Be provided with the packing lining that is evenly distributed with penetrating oil hole in the internal cavities of described sealer housing; Described packing lining can move radially in the internal cavities of sealer housing, and its amount of movement is 0.5 to 16 millimeter.By packing lining moving radially in the internal cavities of sealer housing, realize that packing body and the oil pumping polish rod in the packing lining cavity keeps with one heart, the eccentric wear phenomenon that reduces between packing body and the oil pumping polish rod takes place.
Energy-saving sealer for mouth of pumped oil well comprises: sealer housing, bulb, ball cup, bulb pressure cap, pressure cap, dividing plate, one way valve, tank filler sleeve plugging device, packing lining, packing body, sealing mat; There is bulb the below of described sealer housing, be fixed in by last sealing ring and lower seal in the cavity of ball cup and by the bulb pressure cap and lock; Described pressure cap is arranged on the top of sealer housing, between the two by being threaded; It is the oil chamber that described pressure cap is divided into its upper section cavity by dividing plate; Be provided with the packing lining that is evenly distributed with penetrating oil hole in the internal cavities of described sealer housing; Being shaped as of described sealer enclosure interior cavity is provided with eccentric packing lining in camcylinder shape, this cavity; By adjusting the relative position of sealer housing and eccentric packing lining, realize that packing body and the oil pumping polish rod in the packing lining cavity keeps with one heart, the eccentric wear phenomenon that reduces between packing body and the oil pumping polish rod takes place.
Energy-saving sealer for mouth of pumped oil well comprises: sealer housing, bulb, ball cup, bulb pressure cap, pressure cap, dividing plate, one way valve, tank filler sleeve plugging device, packing lining, packing body, sealing mat; There is bulb the below of described sealer housing, be fixed in by last sealing ring and lower seal in the cavity of ball cup and by the bulb pressure cap and lock; Described pressure cap is arranged on the top of sealer housing, between the two by being threaded; It is the oil chamber that described pressure cap is divided into its upper section cavity by dividing plate; Be provided with the packing lining that is evenly distributed with penetrating oil hole in the internal cavities of described sealer housing; Being shaped as in camcylinder shape, this cavity of described sealer enclosure interior cavity is provided with the packing lining, by adjusting the relative position of sealer housing and oil pumping polish rod, realize that packing body and oil pumping polish rod in the packing lining cavity keep with one heart, the eccentric wear phenomenon that reduces between packing body and the oil pumping polish rod takes place.
Energy-saving sealer for mouth of pumped oil well comprises: sealer housing, bulb, ball cup, bulb pressure cap, pressure cap, dividing plate, one way valve, tank filler sleeve plugging device, packing lining, packing body, sealing mat; There is bulb the below of described sealer housing, be fixed in by last sealing ring and lower seal in the cavity of ball cup and by the bulb pressure cap and lock; Described pressure cap is arranged on the top of sealer housing, between the two by being threaded; It is the oil chamber that described pressure cap is divided into its upper section cavity by dividing plate; Be provided with the packing lining that is evenly distributed with penetrating oil hole in the internal cavities of described sealer housing; Being shaped as of described sealer enclosure interior cavity is provided with eccentric packing lining in concentric drums shape, this cavity, by adjusting the relative position of eccentric packing lining and oil pumping polish rod, realize that packing body and oil pumping polish rod in the packing lining cavity keep with one heart, the eccentric wear phenomenon that reduces between packing body and the oil pumping polish rod takes place.
Energy-saving sealer for mouth of pumped oil well comprises: sealer housing, bulb, ball cup, bulb pressure cap, splicing sleeve, pressure cap, dividing plate, one way valve, tank filler sleeve plugging device, packing lining, packing body, sealing mat; There is bulb the below of described sealer housing, be fixed in by last sealing ring and lower seal in the cavity of ball cup and by the bulb pressure cap and lock; Described pressure cap is arranged on the top of sealer housing, between the two by being threaded; It is the oil chamber that described pressure cap is divided into its upper section cavity by dividing plate; Be provided with the packing lining that is evenly distributed with penetrating oil hole in the internal cavities of described sealer housing; Described ball cup is installed in the cavity of splicing sleeve and can radially moves in this cavity, and its amount of movement is 0.5 to 16 millimeter; The side of described splicing sleeve is provided with positioner, by ball cup moving radially in the splicing sleeve cavity, realizes that packing body and the oil pumping polish rod in the packing lining cavity keeps with one heart, and the eccentric wear phenomenon that reduces between packing body and the oil pumping polish rod takes place.
The internal cavities of above-described packing lining be shaped as taper shape.
Above-described dividing plate is provided with one way valve, controls its opening and closing by the tank filler sleeve plugging device.
The emptying plugging device that the below of above-described sealer housing is provided with the emptying oil duct and is arranged on the side of ball cup is formed the emptying system in the lubrication oil oil network.
The side of above-described packing pressure cap is evenly distributed with penetrating oilhole.
After adopting this spline structure, lubrication oil can be continuous around the lateral surface of the top of packing body and packing body, the packing body is soaked into, by of absorption and the conduction of packing body to lubrication oil, making between packing body and the oil pumping polish rod can be continuously, fully, lubricated uniformly, thereby reduce the wearing and tearing of oil pumping polish rod and packing body, reduce frictional resistance, reduce the energy consumption of oil pumper.Concentric by adjusting packing lining and oil pumping polish rod in addition, solve the eccentric wear problem between oil pumping polish rod and the packing body.Reduce the wearing and tearing of oil pumping polish rod and packing body, improve the sealing performance of sealer.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Fig. 1 is the sectional view of first kind of embodiment of the energy-saving sealer for mouth of pumped oil well of the utility model.
Fig. 2 is the sectional view along A-A line among Fig. 1.
Fig. 3 is the internal construction sectional view of the pressure cap part among Fig. 1.
Fig. 4 is the sectional view of second kind of embodiment of the energy-saving sealer for mouth of pumped oil well of the utility model.
Fig. 5 is the sectional view along B-B line among Fig. 4.
Fig. 6 is the sectional view of the third embodiment of the energy-saving sealer for mouth of pumped oil well of the utility model.
Fig. 7 is the sectional view along C-C line among Fig. 6.
Fig. 8 is the sectional view of the 4th kind of embodiment of the energy-saving sealer for mouth of pumped oil well of the utility model.
Fig. 9 is the sectional view along D-D line among Fig. 8.
Figure 10 is the sectional view of the 5th kind of embodiment of the energy-saving sealer for mouth of pumped oil well of the utility model.
Figure 11 is the sectional view along E-E line among Figure 10.
The specific embodiment
Fig. 1, Fig. 2 and shown in Figure 3 be first kind of embodiment of novel energy-saving sealer for mouth of pumped oil well, there is bulb 4 below of sealer housing 1, is fixed in the cavity of ball cup 7 by last sealing ring 5 and lower seal 6, and by 8 lockings of bulb pressure cap; Be provided with packing lining 2 in the internal cavities of sealer housing 1; Shown packing lining 2 can move radially in the internal cavities of sealer housing 1, its amount of movement is 0.5 to 16 millimeter, by packing lining 2 moving radially in sealer housing 1 internal cavities, the packing body of adjusting in packing lining 2 cavitys 17 keeps concentric with oil pumping polish rod 14, and the eccentric wear phenomenon that reduces between oil pumping polish rod 14 and the packing body 17 takes place.
Be evenly distributed with the oil network that the gap between the cavity inner wall of penetrating oil hole 18 and packing lining 2 and sealer housing 1 forms on the shown packing lining 2, to give the packing body 17 that has Oil Guide layer 19 in packing lining 2 cavitys from the lubrication oil fuel feeding of the oil chamber 15 of the top of pressure cap 3, absorption by 19 pairs of lubrication oil of Oil Guide layer, conduction and storage, make between packing body 17 and the oil pumping polish rod 14, can be continuous, fully, lubricated uniformly, thereby reduce the wearing and tearing of oil pumping polish rod 14 and packing body 17, reduce frictional resistance, reduce the energy consumption of oil pumper.
Between sealer housing 1 and the pressure cap 3 for being threaded; By dividing plate 11 pressure cap 3 being divided into its upper section cavity is oil chamber 15, and there is packing pressure cap 10 below of dividing plate 11; Packing pressure cap 10 is provided with oilhole 25; Dividing plate 11 is provided with one way valve 26, is provided with tank filler sleeve plugging device 16 with one way valve 26 corresponding tops; The below of dividing plate 11 be provided with can adsorpting lubrication oil cavernous body 27; Between the top of pressure cap 3 and oil pumping polish rod 14, be provided with dust-proof cushion 12 and dustproof pressure cap 13, to prevent that lubrication oil from leaking and outside dust enters in the cavity of oil chamber 15.
Be provided with sealing mat 22 between the internal cavities of the bottom of packing lining 2 and sealer housing 1; The bottom of sealer housing 1 is provided with emptying oil duct 21, be provided with emptying plugging device 20 with the side of emptying oil duct 21 corresponding ball cups 7, the design of this emptying emptying system mainly is for the lubrication oil between packing lining 2 and sealer housing 1 internal cavities or other assorted emitting, and helps replacing and the normal work and the maintenance of lubrication oil.
When installing and using, the sealer assembly is connected with oil well pipe 9, again pressure cap 3 is separated with sealer housing 1, the packing body 17 that will have Oil Guide layer 19 is then inserted in the space between oil pumping polish rod 14 and the packing lining 2, because packing lining 2 can move radially in the internal cavities of sealer housing 1 freely, therefore packing body 17 keeps concentric with oil pumping polish rod 14 automatically, and the eccentric wear phenomenon that reduces between packing body 17 and the oil pumping polish rod 14 takes place.Successively packing pressure cap 10 is placed on the top of packing lining 2 again, is connected also fastening by pressure cap 3 with sealer housing 1; Adjust the elasticity of dustproof pressure cap 13; Unclamp tank filler sleeve plugging device 16, lubrication oil is injected in the cavity of oil chamber 15; When tightening tank filler sleeve plugging device 16, tank filler sleeve plugging device 16 can back down the one way valve on the dividing plate 11 26, lubrication oil 15 flows out through one way valve 26 from the oil chamber, by equally distributed penetrating oil hole 18 on cavernous body 27 and the packing lining 2, the packing body 17 that has Oil Guide layer 19 is soaked into; The oilhole 25 of lubrication oil on cavernous body 27 and packing pressure cap 10 flows to the top of packing body 17 on the other hand, to being lubricated between packing body 17 and the oil pumping polish rod 14, reduces wear.Reduce frictional resistance, reduce the energy consumption of oil pumper.
When packing body 17 being changed or add adjustment.At first unclamp tank filler sleeve plugging device 16, the one way valve 26 on the dividing plate 11 can be closed automatically, and the interior lubrication oil of cavity that cuts off oil chamber 15 flows out.And then unclamp pressure cap 3 and carry out maintenance work.
Owing to unclamp pressure cap 3, the cavernous body 27 of dividing plate 11 belows can produce and expand, and lubrication oil absorptive collection is on every side got up, and so neither causes the waste of lubrication oil, can not cause the pollution of environment again because of leaking of lubrication oil.
Fig. 4 and shown in Figure 5 be second kind of embodiment of novel energy-saving sealer for mouth of pumped oil well, there is bulb 4 below of sealer housing 1, is fixed in the cavity of ball cup 7 by last sealing ring 5 and lower seal 6, and by 8 lockings of bulb pressure cap; Be provided with packing lining 2 in the internal cavities of sealer housing 1; The internal cavities of shown sealer housing 1 is the camcylinder shape; The outer shape of shown packing lining 2 is that eccentric cylinder shape, internal cavities are cone shape; By adjusting the relative position of sealer housing 1 and packing lining 2, realize packing body 17 and oil pumping polish rod 14 concentric in the packing lining 2 inner circular cone cavitys, the generation of the eccentric wear phenomenon between minimizing packing body 17 and the oil pumping polish rod 14.
Fig. 6 and shown in Figure 7 be the third embodiment of novel energy-saving sealer for mouth of pumped oil well, there is bulb 4 below of sealer housing 1, is fixed in the cavity of ball cup 7 by last sealing ring 5 and lower seal 6, and by 8 lockings of bulb pressure cap; Be provided with packing lining 2 in the internal cavities of sealer housing 1; The internal cavities of shown sealer housing 1 is the camcylinder shape; The internal cavities of shown packing lining 2 is the concentric circles cone-shaped; By adjusting the relative position of sealer housing 1 and oil pumping polish rod 14, realize packing body 17 and oil pumping polish rod 14 concentric in the packing lining 2 inner concentric circular cone cavitys, the generation of the eccentric wear phenomenon between minimizing packing body 17 and the oil pumping polish rod 14.
Fig. 8 and shown in Figure 9 be the 4th kind of embodiment of novel energy-saving sealer for mouth of pumped oil well, there is bulb 4 below of sealer housing 1, be fixed in the cavity of ball cup 7 by last sealing ring 5 and lower seal 6, ball cup 7 is installed in the cavity of splicing sleeve 23, and by 8 lockings of bulb pressure cap; Be provided with packing lining 2 in the internal cavities of shown sealer housing 1; Shown ball cup 7 can radially move in the cavity of splicing sleeve 23, its amount of movement is 0.5 to 16 millimeter, to adjust the relative position of sealer housing 1 and oil pumping polish rod 14, realize packing body 17 and oil pumping polish rod 14 concentric in the packing lining 2 inner circular cone cavitys, reduce the generation of the eccentric wear phenomenon between packing body 17 and the oil pumping polish rod 14; The side of splicing sleeve 23 is provided with positioner 24, is used for fixing ball cup 7.
Figure 10 and shown in Figure 11 be the 5th kind of embodiment of novel energy-saving sealer for mouth of pumped oil well, there is bulb 4 below of sealer housing 1, is fixed in the cavity of ball cup 7 by last sealing ring 5 and lower seal 6, and by 8 lockings of bulb pressure cap; Be provided with packing lining 2 in the internal cavities of sealer housing 1; The internal cavities of shown sealer housing 1 is the concentric drums shape; The internal cavities of shown packing lining 2 is the off-centre operation cone-shaped; By transferring the relative position of packing lining 2 and oil pumping polish rod 14, realize packing body 17 and oil pumping polish rod 14 concentric in the packing lining 2 inner eccentric circular cone cavitys, the generation of the eccentric wear phenomenon between minimizing packing body 17 and the oil pumping polish rod 14.
Above-mentioned embodiment can be realized packing body 17 and oil pumping polish rod 14 concentric in packing lining 2 internal cavities; can certainly adopt other modes to make moving radially of sealer housing 1; realize the concentric of packing body 17 and oil pumping polish rod 14, such conversion all drops within the protection domain of the present utility model.
Claims (9)
1. an energy-saving sealer for mouth of pumped oil well comprises: sealer housing, bulb, ball cup, bulb pressure cap, pressure cap, dividing plate, one way valve, tank filler sleeve plugging device, packing lining, packing body, sealing mat; There is bulb the below of described sealer housing, be fixed in by last sealing ring and lower seal in the cavity of ball cup and by the bulb pressure cap and lock; Described pressure cap is arranged on the top of sealer housing, between the two by being threaded; It is the oil chamber that described pressure cap is divided into its upper section cavity by dividing plate; Be provided with the packing lining that is evenly distributed with penetrating oil hole in the internal cavities of described sealer housing; It is characterized in that: described packing lining (2) can move radially in the internal cavities of sealer housing (1), and its amount of movement is 0.5 to 16 millimeter.
2. an energy-saving sealer for mouth of pumped oil well comprises: sealer housing, bulb, ball cup, bulb pressure cap, pressure cap, dividing plate, one way valve, tank filler sleeve plugging device, packing lining, packing body, sealing mat; There is bulb the below of described sealer housing, be fixed in by last sealing ring and lower seal in the cavity of ball cup and by the bulb pressure cap and lock; Described pressure cap is arranged on the top of sealer housing, between the two by being threaded; It is the oil chamber that described pressure cap is divided into its upper section cavity by dividing plate; Be provided with the packing lining that is evenly distributed with penetrating oil hole in the internal cavities of described sealer housing; It is characterized in that: being shaped as of described sealer housing (1) internal cavities is provided with eccentric packing lining (2) in camcylinder shape, this cavity.
3. an energy-saving sealer for mouth of pumped oil well comprises: sealer housing, bulb, ball cup, bulb pressure cap, pressure cap, dividing plate, one way valve, tank filler sleeve plugging device, packing lining, packing body, sealing mat; There is bulb the below of described sealer housing, be fixed in by last sealing ring and lower seal in the cavity of ball cup and by the bulb pressure cap and lock; Described pressure cap is arranged on the top of sealer housing, between the two by being threaded; It is the oil chamber that described pressure cap is divided into its upper section cavity by dividing plate; Be provided with the packing lining that is evenly distributed with penetrating oil hole in the internal cavities of described sealer housing; It is characterized in that: being shaped as of described sealer housing (1) internal cavities is provided with packing lining (2) in camcylinder shape, this cavity.
4. an energy-saving sealer for mouth of pumped oil well comprises: sealer housing, bulb, ball cup, bulb pressure cap, pressure cap, dividing plate, one way valve, tank filler sleeve plugging device, packing lining, packing body, sealing mat; There is bulb the below of described sealer housing, be fixed in by last sealing ring and lower seal in the cavity of ball cup and by the bulb pressure cap and lock; Described pressure cap is arranged on the top of sealer housing, between the two by being threaded; It is the oil chamber that described pressure cap is divided into its upper section cavity by dividing plate; Be provided with the packing lining that is evenly distributed with penetrating oil hole in the internal cavities of described sealer housing; It is characterized in that: being shaped as of described sealer housing (1) internal cavities is provided with eccentric packing lining (2) in concentric drums shape, this cavity.
5. an energy-saving sealer for mouth of pumped oil well comprises: sealer housing, bulb, ball cup, bulb pressure cap, splicing sleeve, pressure cap, dividing plate, one way valve, tank filler sleeve plugging device, packing lining, packing body, sealing mat; There is bulb the below of described sealer housing, be fixed in by last sealing ring and lower seal in the cavity of ball cup and by the bulb pressure cap and lock; Described pressure cap is arranged on the top of sealer housing, between the two by being threaded; It is the oil chamber that described pressure cap is divided into its upper section cavity by dividing plate; Be provided with the packing lining that is evenly distributed with penetrating oil hole in the internal cavities of described sealer housing; It is characterized in that: described ball cup (7) is installed in the cavity of splicing sleeve (23) and can radially moves in this cavity, and its amount of movement is 0.5 to 16 millimeter; The side of described splicing sleeve (23) is provided with positioner (20).
6. according to each described energy-saving sealer for mouth of pumped oil well in the claim 1 to 5, it is characterized in that: the internal cavities of described packing lining (2) be shaped as taper shape.
7. according to each described energy-saving sealer for mouth of pumped oil well in the claim 1 to 5, it is characterized in that: described dividing plate (11) is provided with one way valve (26), controls its opening and closing by tank filler sleeve plugging device (16).
8. according to each described energy-saving sealer for mouth of pumped oil well in the claim 1 to 5, it is characterized in that: the emptying plugging device (20) that the below of described sealer housing (1) is provided with emptying oil duct (21) and is arranged on the side of ball cup (7) is formed the emptying system in the lubrication oil oil network.
9. according to each described energy-saving sealer for mouth of pumped oil well in the claim 1 to 5, it is characterized in that: the side of described packing pressure cap (10) is evenly distributed with penetrating oilhole (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201681591U CN201802337U (en) | 2010-03-26 | 2010-03-26 | Energy-saving pumping well head sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201681591U CN201802337U (en) | 2010-03-26 | 2010-03-26 | Energy-saving pumping well head sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802337U true CN201802337U (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201681591U Expired - Fee Related CN201802337U (en) | 2010-03-26 | 2010-03-26 | Energy-saving pumping well head sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201802337U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015188688A1 (en) * | 2014-06-10 | 2015-12-17 | 刘玉玺 | Self-lubricating oil-pumping polished rod sealer |
| WO2016004797A1 (en) * | 2014-07-10 | 2016-01-14 | 刘玉玺 | Oil-pumping polished rod motion-following sealer |
| CN108222878A (en) * | 2016-12-21 | 2018-06-29 | 中国石油天然气股份有限公司 | Anti-puncture pollution device and packing box device |
| CN111927368A (en) * | 2020-07-17 | 2020-11-13 | 华运隆腾机械制造有限公司 | Well head and sealing protection device |
-
2010
- 2010-03-26 CN CN2010201681591U patent/CN201802337U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015188688A1 (en) * | 2014-06-10 | 2015-12-17 | 刘玉玺 | Self-lubricating oil-pumping polished rod sealer |
| WO2016004797A1 (en) * | 2014-07-10 | 2016-01-14 | 刘玉玺 | Oil-pumping polished rod motion-following sealer |
| CN108222878A (en) * | 2016-12-21 | 2018-06-29 | 中国石油天然气股份有限公司 | Anti-puncture pollution device and packing box device |
| CN111927368A (en) * | 2020-07-17 | 2020-11-13 | 华运隆腾机械制造有限公司 | Well head and sealing protection device |
| CN111927368B (en) * | 2020-07-17 | 2021-06-22 | 华运隆腾机械制造有限公司 | Well head and sealing protection device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20170326 |