CN2310152Y - Centring polished rod sealer - Google Patents
Centring polished rod sealer Download PDFInfo
- Publication number
- CN2310152Y CN2310152Y CN 97246498 CN97246498U CN2310152Y CN 2310152 Y CN2310152 Y CN 2310152Y CN 97246498 CN97246498 CN 97246498 CN 97246498 U CN97246498 U CN 97246498U CN 2310152 Y CN2310152 Y CN 2310152Y
- Authority
- CN
- China
- Prior art keywords
- packing
- polished rod
- last
- spring
- utility
- 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 Devices (AREA)
Abstract
The utility model relates to a deflection positioning centering polished rod sealing device for an oil pumping well in an oilfield. The utility model is composed of a packing press cover (1), a packing press sleeve (2), a packing (3), an upper sealing body (4), a packing bottom sleeve (5), a press cover (6), a shim (7), a rubber ring (8), a small spring (9), a cone sealing block (10), a positioning screw (11), a spring sleeve (12), a big spring (13), a lower sealing body (14), a large press cap (15), an upwards centering body (16), a downwards centering body (17) and a seat body (18). Since the utility model adopts a matching structure of a sphere and the centering bodies, and accordingly, the polished rod sealing device plays the functions of centering and deflection positioning; the utility model has the advantages of good sealing performance, long polished rod service life, reasonable structure, low cost, production cost reduction and labor efficiency increasing.
Description
The utility model relate to a kind of be used for oil field pumping well with offset heart polished rod sealer.
At present, the polished rod sealer that pumpingh well adopts usually has single packing box, two packing box or single packing box to add polytypes such as rubber gate, automatic aligning packing, because oil pumper is located in the field for many years, the time difference, the temperature difference are big, in addition because of alignment error, and the oil pumper that long-term dynamic load load causes departs from well head, to making sucker rod partial wear sealer cushion rubber, sealer seepage.
It is a kind of with offset heart polished rod sealer that the purpose of this utility model is to provide, but this kind sealer is adjustable tiltedly tuningout again, can reduce wearing and tearing within the specific limits with the polished rod skew, reduces seepage, and need not to shut down be replaceable packing.
The utility model is to realize like this, it is by packing gland (1), packing gland (2), packing (3), last seal (4), cover (5) at the bottom of the packing, gland (6), pad (7), cushion rubber (8), little spring (9), cone sealing block (10), set screw (11), spring housing (12), big spring (13), lower seal body (14), big pressure cap (15), last aligning body (16), following aligning body (17), pedestal (18) is formed, its assembling is as follows with architectural feature: packing gland (1) lower end is connected with last seal (4) with screw thread, packing gland (2) from top to bottom is housed in it successively, packing (3), cover (5) at the bottom of the packing, gland (6), pad (7), cone sealing block (10), lower seal body (14), little spring (9) is arranged in the cone sealing block (10), under it spring housing is arranged, big spring (13), last seal (4) is threaded with lower seal body (14), set screw (11) passes fixedly lower seal body (14) of seal (4), lower seal body (14) bottom is circular arc, seat is at last aligning body (16) respectively, on the following aligning body (17), and by cushion rubber (8) sealing, below the following aligning body (17) pedestal (18), and with last aligning body (16) above big pressure cap (15) be threaded, last aligning body (16) and big pressure cap (15), following aligning body (17) seals by cushion rubber (8) respectively with pedestal (18), big spring (13) plays and replaces with the sealing ring reset response, " O " type cushion rubber (8) plays sealing function, lower seal body (14) bottom is a spheroid, the outside is with raises heart body (16) and following aligning body (17), play aligning and with the bias placement effect, in order to prevent leakage of oil, sealing " O " type circle (8) is housed, big Glan pressure cap (15) compresses spheroid, and the pedestal bottom directly connects on the oil pipe.This same pedestal of big Glan pressure cap (15) (18) plays and compresses spheroid, aligning body and the effect of connection oil pipe.
The utility model is owing to adopted the fit structure of spheroid and aligning body, make polished rod sealer play aligning and with the bias placement effect, good seal performance, keep the polished rod sealer long service life, rational in infrastructure, cheap, improved efficiency, reduced cost of production, promote the use of at the scene of being well suited for.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is illustrated.
The utility model by packing gland 1, packing gland 2, packing 3, go up cover 5, gland 6, pad 7, cushion rubber 8, little spring 9, cone sealing block 10, set screw 11, spring housing 12, big spring 13, lower seal body 14, big pressure cap 15 at the bottom of seal 4, the packing, go up aligning body 16, aligning body 17, pedestal 18 are formed down, polished rod sealer, packing gland 1 is sleeved on the secondary seal body 4, oil resistant packing 3 is housed, packing gland (2) in the seal 4.At the bottom of being arranged under the oil resistant rubber, the carrying sealed packing overlaps (5), connect with lower seal body (14) with screw thread in last seal (4) the latter half, cone sealing block (10) is made by rubber, its underpart big spring (13) plays and replaces with the sealing ring reset response, " O " type cushion rubber (8) plays sealing function, lower seal body (14) bottom is a spheroid, the outside is with raises heart body (16) and following aligning body (17), play aligning and with the bias placement effect, in order to prevent leakage of oil, sealing " O " type circle (8) is housed, and big Glan pressure cap (15) compresses spheroid, and pedestal 18 bottoms directly connect on the oil pipe.This same pedestal of big Glan pressure cap (15) (18) plays and compresses spheroid, aligning body and the effect of connection oil pipe.
Claims (2)
- The utility model relate to a kind of be used for oil field pumping well with offset heart polished rod sealer, it is by packing gland (1), packing gland (2), packing (3), last seal (4), cover (5) at the bottom of the packing, gland (6), pad (7), cushion rubber (8), little spring (9), cone sealing block (10), set screw (11), spring housing (12), big spring (13), lower seal body (14), big pressure cap (15), last aligning body (16), following aligning body (17), pedestal (18) is formed, it is characterized in that: packing gland (1) lower end is connected with last seal (4) with screw thread, packing gland (2) from top to bottom is housed in it successively, packing (3), cover (5) at the bottom of the packing, gland (6), pad (7), cone sealing block (10), lower seal body (14), little spring (9) is arranged in the cone sealing block (10), spring housing (12) big spring (13) is arranged under it, last seal (4) is threaded with lower seal body (14), set screw (11) passes fixedly lower seal body (14) of seal (4), lower seal body (14) bottom is circular arc, seat is at last aligning body (16) respectively, on the following aligning body (17), and by cushion rubber (8) sealing, below the following aligning body (17) pedestal (18), and be threaded last aligning body (16) and big pressure cap (15) with big pressure cap (15) above the last aligning body (16), following aligning body (17) seals by cushion rubber (8) respectively with pedestal (18).
- 2. according to claim 1 with offset heart polished rod sealer, it is characterized in that: cone sealing block (10) adopts rubber to make, and the bottom of lower seal body (14) is segment shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97246498 CN2310152Y (en) | 1997-12-11 | 1997-12-11 | Centring polished rod sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97246498 CN2310152Y (en) | 1997-12-11 | 1997-12-11 | Centring polished rod sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2310152Y true CN2310152Y (en) | 1999-03-10 |
Family
ID=33954681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97246498 Expired - Fee Related CN2310152Y (en) | 1997-12-11 | 1997-12-11 | Centring polished rod sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2310152Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388467A (en) * | 2013-08-06 | 2013-11-13 | 江苏省金峰石油机械制造有限公司 | Bidirectional displacement deflection correction type sucker rod sealer |
-
1997
- 1997-12-11 CN CN 97246498 patent/CN2310152Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388467A (en) * | 2013-08-06 | 2013-11-13 | 江苏省金峰石油机械制造有限公司 | Bidirectional displacement deflection correction type sucker rod sealer |
| CN103388467B (en) * | 2013-08-06 | 2015-12-23 | 江苏省金峰石油机械制造有限公司 | Bidirectional displacement deflection correction type sucker rod sealer |
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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 |