CN201176860Y - Packer sealing sleeve - Google Patents
Packer sealing sleeve Download PDFInfo
- Publication number
- CN201176860Y CN201176860Y CNU2008200768459U CN200820076845U CN201176860Y CN 201176860 Y CN201176860 Y CN 201176860Y CN U2008200768459 U CNU2008200768459 U CN U2008200768459U CN 200820076845 U CN200820076845 U CN 200820076845U CN 201176860 Y CN201176860 Y CN 201176860Y
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- CN
- China
- Prior art keywords
- sleeve
- packing
- sleeve gasket
- gasket
- lower sleeve
- 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 belongs to the sealing element technical field and discloses a packing gland cover. The main technical characteristics of the packing gland cover are as follows: the packing gland cover comprises an upper sleeve the inside of which is provided with an upper gland cover and an upper lug boss, wherein the top of the upper sleeve is provided with an upper clamp sleeve and an end cover; the upper gland cover is formed by insertion of at least two parts; the outside of the upper gland cover is provided with an elastic ring which is arranged inside a groove; the lower end of the upper sleeve is provided with a lower sleeve which is movably connected with the upper sleeve and provided with a lower clamp sleeve; a lower lug boss, a conical lower gland cover, a conical cylinder and a spring are arranged inside the lower sleeve; and an adjusting sleeve which is in threaded connection with the lower sleeve is arranged on the lower sleeve. The packing gland cover provided by the utility model has the capacity of self-adjustment, can not generate the phenomenon of crude oil leakage, has small resistance to a polished rod, saves energy, has long service life, and is convenient in maintenance and replacement.
Description
Technical field
The utility model belongs to the seal technical field, relates in particular to a kind of packing_seal cover.
Background technology
In the oil field operation,, sealing device need be set in the bottom that lifts with polished rod for preventing to occur in the manufacturing process leakage of crude oil.Presently used sealing device comprises that inside is provided with the sleeve of rubber sealing boot, and sleeve inner is provided with boss to place rubber sealing boot, and the top of sleeve is provided with clamping sleeve that rubber sealing boot is compressed and the end cap that is connected with bush whorl.This sealing device is enclosed within sleeve, rubber sealing boot, clamping sleeve and end cap on the polished rod during use, then end cap and sleeve is screwed, and end cap is exerted pressure to rubber sealing boot by clamping sleeve.Rubber sealing boot one end is pushed by clamping sleeve, and the other end is stopped by boss and expands, and plays sealing function thereby hold polished rod tightly.After using a period of time, rubber sealing boot is worn, and end cap is continued to screw, and makes rubber sealing boot continue to seal.Though the sealer sealing effectiveness of this structure is pretty good, but because its inner rubber sealing boot mostly is the cartridge type of sheet type, cartridge type, flight formation etc., the resistance that also polished rod is produced when tightly holding tightly is bigger, both wasted energy, lacked in quick abrasion, application life again.And rubber sealing boot lacks capacity of self-regulation, absent-mindedness occurs in case the workman works, and is prone to former oil seepage phenomenon, and maintain and replace is also pretty troublesome.
The utility model content
Problem to be solved in the utility model just provides that a kind of resistance that polished rod is produced is little, long service life, can self regulate, maintain and replace is easy to the packing_seal cover.
For addressing the above problem, the technical solution adopted in the utility model is: comprise that inside is provided with the upper bush of upper sleeve gasket and convex platform, the top of upper bush is provided with clamping sleeve and end cap, and described upper sleeve gasket is made of two parts at least, and the upper sleeve gasket outside is provided with elastic ring.
Its additional technical feature is: the outer wall of described upper sleeve gasket is provided with groove, and elastic ring is located in the groove; Described upper sleeve gasket is pegged graft by two parts, and two-part relevant position is respectively arranged with the convex contiguous block or the spill link slot of mutual coupling; The lower end of described upper bush is provided with the lower sleeve of clamping sleeve under the having that flexibly connects with it, is provided with lower convex platform and frustum lower sleeve gasket in the lower sleeve, and tapering is connected with lower sleeve gasket with the awl tube that the tapering of lower sleeve gasket is complementary; Described awl tube is connected with spring; Described lower sleeve gasket is a strip-spiral; Described lower sleeve is provided with regulating sleeve, and regulating sleeve is threaded with lower sleeve.
Packing_seal cover provided by the utility model compared with prior art, have the following advantages: one, upper sleeve gasket is a plug-in type split shape, at the arranged outside elastic ring of upper sleeve gasket, during use, elastic ring makes upper sleeve gasket encase polished rod, then end cap and upper bush are screwed, end cap is exerted pressure to upper sleeve gasket by last clamping sleeve, and upper sleeve gasket is expanded, and plays sealing function thereby hold polished rod tightly.After using a period of time, upper sleeve gasket is worn, even temporarily end cap is not screwed, elastic ring still can continue to make upper sleeve gasket continue to hold tightly polished rod, thereby seals.Make upper sleeve gasket have capacity of self-regulation, absent-mindedness occurs, in time end cap is not continued to screw, former oil seepage phenomenon also can not occur even the workman works.And upper sleeve gasket is little to the resistance that polished rod produces, thereby energy conservation prolongs seal life; Its two, the lower end of upper bush is provided with down the lower sleeve of clamping sleeve, and lower convex platform and frustum lower sleeve gasket are set in the lower sleeve, lower sleeve gasket is connected with awl tube, spring.During use, upper bush and lower sleeve are screwed, lower sleeve is exerted pressure to lower sleeve gasket by following clamping sleeve, is squeezed the awl tube is exerted pressure and be located at spring on the lower convex platform, and lower sleeve gasket and awl tube be tight to be contacted and expand, and plays sealing function thereby hold polished rod tightly.After using a period of time, lower sleeve gasket is worn, even temporarily upper bush is not continued to screw, spring still can continue the awl tube is exerted pressure, and makes lower sleeve gasket and awl tube continue closely to contact and expand, and continues to make lower sleeve gasket to seal.Thereby make lower sleeve gasket have capacity of self-regulation, absent-mindedness occurs, in time upper bush is not continued to screw, former oil seepage phenomenon also can not occur even the workman works.And the lower sleeve gasket of this structure is little to the resistance that polished rod produces, thereby energy conservation prolongs seal life.For ease of installing, changing, lower sleeve gasket can be strip-spiral or split shape etc.; Its three, the regulating sleeve be threaded with it is set on the lower sleeve, during daily use, upper bush and regulating sleeve are adjusted to certain position, make lower sleeve gasket inoperative.Simultaneously, end cap and upper bush are screwed, make the upper sleeve gasket effect.When upper sleeve gasket damages, upper bush and regulating sleeve are tightened, make the lower sleeve gasket sealing, then end cap is outwarded winding, replace with sealing shroud.Thereby make packing_seal be enclosed within the situation without other ancillary facility, reach the maintain and replace purpose, very easy to use.
Description of drawings
Fig. 1 is the structural representation of the utility model packing_seal cover;
Fig. 2 is the structural representation of upper sleeve gasket.
The specific embodiment
Be described in further details below in conjunction with the structure and the use principle of accompanying drawing the utility model packing_seal cover.
As shown in Figure 1, the utility model packing_seal cover comprises upper bush 1, upper bush 1 inside is provided with convex platform 2 and upper sleeve gasket 3, upper sleeve gasket 3 outer walls are provided with groove 4, be provided with elastic ring 5 in the groove 4, the top of upper bush 1 is provided with clamping sleeve 6 and end cap 7, the lower end of upper bush 1 is provided with the lower sleeve 9 of clamping sleeve 8 under the having that flexibly connects with it, be provided with lower convex platform 10 in the lower sleeve 9, set gradually spring 11 above the lower convex platform 10, awl tube 12 and frustum lower sleeve gasket 13, the tapering of awl tube 12 and the tapering of lower sleeve gasket 13 are complementary, lower sleeve gasket 13 can be as the strip-spiral of figure or other shape, and lower sleeve 9 is provided with the regulating sleeve 14 that is threaded with it.As shown in Figure 2, upper sleeve gasket 3 is pegged graft by two parts, and two-part relevant position is respectively arranged with convex contiguous block 15 or spill link slot 16.
During use, upper bush 1 and regulating sleeve 14 are adjusted to certain position, make lower sleeve gasket 13 inoperative.At this moment, elastic ring 5 makes upper sleeve gasket 3 encase polished rod 17, then end cap 7 and upper bush 1 is screwed, and end cap 7 is exerted pressure by 6 pairs of upper sleeve gaskets 3 of last clamping sleeve, and upper sleeve gasket 3 is expanded, and plays sealing function thereby hold polished rod 17 tightly.After using a period of time, upper sleeve gasket 3 is worn, even temporarily end cap 7 is not screwed, elastic ring 5 still can continue to make upper sleeve gasket 3 continue to hold tightly polished rod 17, thereby seals.
When upper sleeve gasket 3 damages, regulate upper bush 1 and regulating sleeve 14, upper bush 1 and lower sleeve 9 are screwed, upper bush 1 is exerted pressure by following 8 pairs of lower sleeve gaskets 13 of clamping sleeve, be squeezed awl tube 12 is exerted pressure and be located at spring 11 on the lower convex platform 10, lower sleeve gasket 13 closely contacts with awl tube 12 and expands, and plays sealing function thereby hold polished rod 17 tightly.Then end cap 7 is outwarded winding, replaced with sealing shroud 3 and get final product, very convenient.
The utility model is not limited only to the said structure form, and two kinds of hermetically-sealed constructions can use separately, also can all adopt up and down with a kind of hermetically-sealed construction, can be convenient for changing equally.Also can adopt the structure that sets gradually frustum sealing shroud 13, awl tube 12 and spring 11 above the lower convex platform 10, upper sleeve gasket 3, lower sleeve gasket 13 can strip-spirals, split shape or other form of structure.
Claims (7)
1, packing_seal cover comprises that inside is provided with the upper bush of upper sleeve gasket and convex platform, and the top of upper bush is provided with clamping sleeve and end cap, it is characterized in that: described upper sleeve gasket is made of two parts at least, and the upper sleeve gasket outside is provided with elastic ring.
2, packing_seal cover according to claim 1, it is characterized in that: the outer wall of described upper sleeve gasket is provided with groove, and elastic ring is located in the groove.
3, packing_seal cover according to claim 1, it is characterized in that: described upper sleeve gasket is pegged graft by two parts, and two-part relevant position is respectively arranged with the convex contiguous block or the spill link slot of mutual coupling.
4, according to claim 1 or 2 or 3 described packing_seal covers, it is characterized in that: the lower end of described upper bush is provided with the lower sleeve of clamping sleeve under the having that flexibly connects with it, be provided with lower convex platform and frustum lower sleeve gasket in the lower sleeve, tapering is connected with lower sleeve gasket with the awl tube that the tapering of lower sleeve gasket is complementary.
5, packing_seal cover according to claim 4 is characterized in that: described awl tube is connected with spring.
6, packing_seal cover according to claim 4 is characterized in that: described lower sleeve gasket is a strip-spiral.
7, packing_seal cover according to claim 4, it is characterized in that: described lower sleeve is provided with regulating sleeve, and regulating sleeve is threaded with lower sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200768459U CN201176860Y (en) | 2008-04-16 | 2008-04-16 | Packer sealing sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200768459U CN201176860Y (en) | 2008-04-16 | 2008-04-16 | Packer sealing sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201176860Y true CN201176860Y (en) | 2009-01-07 |
Family
ID=40216879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200768459U Expired - Fee Related CN201176860Y (en) | 2008-04-16 | 2008-04-16 | Packer sealing sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201176860Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016004796A1 (en) * | 2014-07-10 | 2016-01-14 | 刘玉玺 | Self-lubricating oil-pumping polished rod following sealer |
| CN110485965A (en) * | 2019-07-26 | 2019-11-22 | 大连理工大学 | Crude oil blowout swathes inflation squash type plugging device |
-
2008
- 2008-04-16 CN CNU2008200768459U patent/CN201176860Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016004796A1 (en) * | 2014-07-10 | 2016-01-14 | 刘玉玺 | Self-lubricating oil-pumping polished rod following sealer |
| CN110485965A (en) * | 2019-07-26 | 2019-11-22 | 大连理工大学 | Crude oil blowout swathes inflation squash type plugging device |
| CN110485965B (en) * | 2019-07-26 | 2021-08-06 | 大连理工大学 | Winding inflatable extrusion type plugging device for crude oil blowout |
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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: 20090107 Termination date: 20140416 |