CN204175227U - The rotary polished rod sealer of packing - Google Patents
The rotary polished rod sealer of packing Download PDFInfo
- Publication number
- CN204175227U CN204175227U CN201420624191.4U CN201420624191U CN204175227U CN 204175227 U CN204175227 U CN 204175227U CN 201420624191 U CN201420624191 U CN 201420624191U CN 204175227 U CN204175227 U CN 204175227U
- Authority
- CN
- China
- Prior art keywords
- spring
- packing
- polished rod
- spring pad
- bulge loop
- 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
Links
Abstract
The rotary polished rod sealer of a kind of packing, comprise pressure cap, spring, body, spring pad and bulge loop, it is characterized in that body is set to cylindrical, top is provided with the male thread be threaded with packing pressure cap, bottom is provided with the male thread or hoop that are connected with wellhead tee joint, a bulge loop is provided with in the lower end inner circumferential of body, the first spring and the first spring pad is provided with between pressure cap and body, the second spring is provided with in the bottom inner circumferential of body, be provided with second and the 3rd spring pad in the upper and lower of the second spring, the 3rd spring pad is pressed on bulge loop.Advantage is: packing, under the effect of two springs, can play its elastic packing effect well, can produce rotation when polished rod moves back and forth, and makes packing not eccentric wear, improves the application life of packing; Spring pad adopts polytetrafluoroethylene (PTFE) or nylon material to make, and do not wear and tear polished rod, also has certain centralizing function.
Description
Technical field
The utility model relates to the rotary polished rod sealer of a kind of packing, solves packing eccentric wear leakage of oil and get packing difficulty to obtain problem.
Background technology
Oil field major part oil well is rod-pumped well, is all that packing is all rubber, and rubber packing high resilience has the advantage that wear-resistant seal is effective by the packing_seal in packing box between well head and polished rod.Because present packing box forces packing distortion, packing is pressed inflexibly, is not played the advantage of rubber packing, cause and occur packing eccentric wear, not wear-resisting, application life the short problem with well head leakage of oil.
Summary of the invention
The purpose of this utility model is to provide the rotary polished rod sealer of a kind of packing, overcomes the defect that above-mentioned prior art exists.
The technical solution of the utility model is achieved in the following ways:
The utility model comprises pressure cap, spring, body, spring pad and bulge loop, it is characterized in that body is set to cylindrical, top is provided with the male thread be threaded with packing pressure cap, bottom is provided with the male thread or hoop that are connected with wellhead tee joint, a bulge loop is provided with in the lower end inner circumferential of body, the first spring and the first spring pad is provided with between pressure cap and body, the second spring is provided with in the bottom inner circumferential of body, be provided with second and the 3rd spring pad in the upper and lower of the second spring, the 3rd spring pad is pressed on bulge loop.
First, second, and third spring pad is set to cylindrical, and center is provided with polished rod hole, adopts polytetrafluoroethylene (PTFE) or nylon material to make.
First and second springs are symmetrical, and material is identical.
The utility model has the following advantages:
1, packing is under the effect of two springs, can play its elastic packing effect well, can produce rotation when polished rod moves back and forth, and makes packing not eccentric wear, improves the application life of packing.
2, spring pad adopts polytetrafluoroethylene (PTFE) or nylon material to make, and do not wear and tear polished rod, also has certain centralizing function.
Accompanying drawing explanation
Accompanying drawing-structural representation of the present utility model
1-pressure cap 2-first spring 3-body 4-second spring pad 5-second spring 6-bulge loop in figure
Detailed description of the invention
For disclosing the technical solution of the utility model further, pass through embodiment below in conjunction with Figure of description
Describe in detail bright:
The utility model comprise pressure cap 1, spring 2,5, body 3, spring pad 4 and bulge loop 6, it is characterized in that body is set to cylindrical, top is provided with the male thread be threaded with packing pressure cap 1, bottom is provided with the male thread or hoop that are connected with wellhead tee joint, a bulge loop 6 is provided with in the lower end inner circumferential of body 3, the first spring and the first spring pad is provided with between pressure cap and body, the second spring is provided with in the bottom inner circumferential of body, be provided with second and the 3rd spring pad in the upper and lower of the second spring, the 3rd spring pad is pressed on bulge loop.
The utility model operationally, first spinning cap, by the active force between the first spring and the second spring and reaction force packing is pressed onto oil-proof till, stop turn pressure cap, packing box starts normal work, and packing produces micro-rotation under the effect of polished rod, spring and spring pressure pad in body, pine time tight time under the effect of polished rod upper and lower load, can give full play to its elastic packing effect, under the effect of spring pressure pad righting, packing not eccentric wear, improves the application life of packing.Decrease the probability of well head leakage of oil.
Claims (3)
1. the rotary polished rod sealer of packing, comprise pressure cap, spring, body, spring pad and bulge loop, it is characterized in that body is set to cylindrical, top is provided with the male thread be threaded with packing pressure cap, bottom is provided with the male thread or hoop that are connected with wellhead tee joint, a bulge loop is provided with in the lower end inner circumferential of body, the first spring and the first spring pad is provided with between pressure cap and body, the second spring is provided with in the bottom inner circumferential of body, be provided with second and the 3rd spring pad in the upper and lower of the second spring, the 3rd spring pad is pressed on bulge loop.
2. the rotary polished rod sealer of packing according to claim 1, it is characterized in that first, second, and third spring pad is set to circular polytetrafluoroethylene (PTFE) or nylon spring pad, center is provided with polished rod hole.
3. the rotary polished rod sealer of packing according to claim 1, it is characterized in that the first and second springs are symmetrical, material is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420624191.4U CN204175227U (en) | 2014-10-17 | 2014-10-17 | The rotary polished rod sealer of packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420624191.4U CN204175227U (en) | 2014-10-17 | 2014-10-17 | The rotary polished rod sealer of packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175227U true CN204175227U (en) | 2015-02-25 |
Family
ID=52564044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420624191.4U Expired - Fee Related CN204175227U (en) | 2014-10-17 | 2014-10-17 | The rotary polished rod sealer of packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017117837A1 (en) * | 2016-01-08 | 2017-07-13 | 于立成 | Wellhead sealing device of sucker-rod pumping machine |
| CN110005360A (en) * | 2019-03-19 | 2019-07-12 | 大庆丹诺石油科技开发有限公司 | Oil-field oil pumper well mouth sealing device |
-
2014
- 2014-10-17 CN CN201420624191.4U patent/CN204175227U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017117837A1 (en) * | 2016-01-08 | 2017-07-13 | 于立成 | Wellhead sealing device of sucker-rod pumping machine |
| CN106958430A (en) * | 2016-01-08 | 2017-07-18 | 于立成 | Rod beam-pumping unit well head sealing apparatus |
| CN106958430B (en) * | 2016-01-08 | 2019-10-18 | 于立成 | Rod beam-pumping unit well head sealing apparatus |
| US10760367B2 (en) | 2016-01-08 | 2020-09-01 | Licheng Yu | Wellhead sealing device of sucker-rod pumping machine |
| US11261687B2 (en) | 2016-01-08 | 2022-03-01 | Licheng Yu | Wellhead sealing device of sucker-rod pumping machine |
| CN110005360A (en) * | 2019-03-19 | 2019-07-12 | 大庆丹诺石油科技开发有限公司 | Oil-field oil pumper well mouth sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20151017 |
|
| EXPY | Termination of patent right or utility model |