CN205918389U - Double -layer packing case - Google Patents
Double -layer packing case Download PDFInfo
- Publication number
- CN205918389U CN205918389U CN201620753723.3U CN201620753723U CN205918389U CN 205918389 U CN205918389 U CN 205918389U CN 201620753723 U CN201620753723 U CN 201620753723U CN 205918389 U CN205918389 U CN 205918389U
- Authority
- CN
- China
- Prior art keywords
- packing
- packing box
- pressing cap
- polished rod
- box
- 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
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- Sealing Devices (AREA)
Abstract
The utility model discloses a double -layer packing case, including two -layer packing box structure, the polished rod from by to down from press the cap, go up the gland, go up the packing, go up the packing box, push down the cap, down the gland, down the packing, down the center of packing box pass, reduce the polished rod at the butter intracavity filling butter device of last packing box and corrode, the increase is sealed up the reduction packing and is worn and torn, the reduction frequently with the packing, improves present staff's intensity of labour.
Description
Technical field
This utility model belongs to oil exploration equipment technical field, specially Double-layer packing case.
Background technology
In oil exploitation, on ground, the upper and lower of oil pumper reciprocates through polished rod, sucker rod drive downhole pump work
Make, downhole crude can be extracted into ground, in oil pumping process, polished rod ceaselessly in the upper and lower reciprocating motion of well head, in order to keep light
Bar and the sealing of well head, generally in the packing box that well head setting is static, arrange packing, the polished rod of activity is from hollow in packing box
Packing box and packing in pass through, realize the isolation of down-hole and ground environment by the tight fit of polished rod and packing, this will
Ask and will have preferable sealing and lubricity between polished rod and packing, but current polished rod because of corrosion plucked, from polished rod
Flow out crude oil and pressure cap between, cause Wellhead crue oil leakage serious, pollute environment, increase workload, how to improve problem above,
Need a kind of more preferable packing box of sealing property.
Content of the invention
The purpose of this utility model is aiming at above-mentioned defect and provides Double-layer packing case, including two-layer packing box
Structure, polished rod is from from top to bottom from upper pressing cap, upper press cover, upper packing, upper packing box, lower pressing cap, lower cover, lower packing, lower wall
The center of root box passes through, and reduces bare rod corrosion in the butter intracavity butter filling-up device of upper packing box, increases sealing and reduces packing
Abrasion, reduces and frequently adds packing, improve the labor intensity of current employee.
Double-layer packing case technical scheme of the present utility model is, including two-layer packing box structure, polished rod from from top to bottom from
Upper pressing cap, upper press cover, upper packing, upper packing box, lower pressing cap, lower cover, lower packing, the center of lower packing box pass through；Upper packing
There is cavity, upper packing is located in the cavity between upper packing box and polished rod, is provided with above upper packing box between box and polished rod
Pressure cap, is additionally provided with the upper press cover sealing between upper pressing cap and upper packing box；
Upper packing box lower end is fixedly connected with lower pressing cap upper surface；Upper packing is shorter in length than between upper packing box and polished rod
Cavity height, forms a butter chamber in the upper packing box of upper packing bottom；
It is provided with lower packing box below lower pressing cap, between lower pressing cap and lower packing box, be additionally provided with pushing of sealing
Lid, lower packing is located between lower packing box and polished rod.
It is provided with rubber gate on lower packing box, when changing packing, shut polished rod using rubber gate, oil-proof.
It is threaded connection between upper pressing cap inwall and upper packing outer box wall.
It is threaded connection between lower pressing cap inwall and lower packing outer box wall.
Upper packing box surface is provided with grease nipple and connects butter chamber.
Described upper pressing cap and lower pressing cap are upper end closed, the tubular structure of open at its lower end, tubular structure upper end closed
Portion's surrounding is provided with prominent outer, and wherein, upper end closed end has the hole that polished rod passes through.
The beneficial effects of the utility model are: adopt one layer of packing box structure, easily from polished rod and pressure in prior art more
Oil leak between cap, sealing effectiveness is bad, and this utility model adopts two-layer packing box structure, and the butter intracavity in upper packing box
After filling butter, plus butter, there are lubrication, antisepsises, polished rod long service life to polished rod, this utility model packing quantity increases
Plus, sealing effectiveness is good, minimizing packing abrasion, extends duty cycle, reduces and frequently add packing, makees without frequent polished rod of changing
Industry, reduces workload, improves the efficiency that drives a well, and improves the labor intensity of current employee.
Brief description:
Fig. 1 show basic structure schematic diagram of the present utility model.
In figure, 1. polished rod, 2. upper pressing cap, 3. upper press cover, 4. upper packing, 5. upper packing box, 6. grease nipple, 7. lower pressing cap,
8. lower cover, 9. rubber gate, 10. lower packing box, 11. lower packings, 12. butter chambeies.
Specific embodiment:
In order to more fully understand this utility model, describe technical side of the present utility model below in detail with instantiation
Case, but this utility model is not limited thereto.
Embodiment 1
Double-layer packing case of the present utility model, including two-layer packing box structure, polished rod 1 from from top to bottom from upper pressing cap 2,
Gland 3, upper packing 4, upper packing box 5, lower pressing cap 7, lower cover 8, lower packing 11, the center of lower packing box 10 pass through；Upper packing
There is cavity, upper packing 4 is located in the cavity between upper packing box 5 and polished rod 1, sets above upper packing box 5 between box 5 and polished rod 1
It is equipped with upper pressing cap 2, between upper pressing cap 2 and upper packing box 5, be additionally provided with the upper press cover 3 sealing；
Upper packing box 5 lower end is fixedly connected with lower pressing cap 7 upper surface；Upper packing 4 is shorter in length than upper packing box 5 and polished rod 1
Between cavity height, form a butter chamber 12 in the upper packing box 5 of upper packing 4 bottom；
It is provided with lower packing box 10 below lower pressing cap 7, be additionally provided between lower pressing cap 7 and lower packing box 10 and seal
Lower cover 8, lower packing 11 be located between lower packing box 10 and polished rod 1.
Rubber gate 9 is provided with lower packing box 10, when changing packing, shuts polished rod 1 using rubber gate 10, do not leak
Oil.
It is threaded connection between upper pressing cap 2 inwall and upper packing box 5 outer wall.
It is threaded connection between lower pressing cap 8 inwall and lower packing box 10 outer wall.
Upper packing box 5 surface is provided with grease nipple 6 and connects butter chamber 12.
Described upper pressing cap 2 and lower pressing cap 7 are upper end closed, the tubular structure of open at its lower end, end seal on tubular structure
Closing part surrounding is provided with prominent outer, and wherein, upper end closed end has the hole that polished rod 1 passes through.
Adopt one layer of packing box structure, easily oil leak between polished rod 1 and pressure cap in prior art, sealing effectiveness is not more
Good, this utility model adopts two-layer packing box structure, and after filling butter, plus butter in the butter chamber 10 of upper packing box 5,
There are lubrication, antisepsises, polished rod 1 long service life to polished rod 1, this utility model packing quantity increases, sealing effectiveness is good, subtracts
Few packing abrasion, extends duty cycle, reduces frequent plus packing, changes polished rod 1 operation without frequent, reduces workload, raising
Drive a well efficiency, improves the labor intensity of current employee.
Claims (6)
1. a kind of Double-layer packing case it is characterised in that include two-layer packing box structure, polished rod from from top to bottom from upper pressing cap,
Gland, upper packing, upper packing box, lower pressing cap, lower cover, lower packing, the center of lower packing box pass through；Upper packing box and polished rod it
Between have cavity, upper packing is located in cavity between upper packing box and polished rod, is provided with upper pressing cap, upper pressing cap above upper packing box
It is additionally provided with upper press cover and upper packing box between；
Upper packing box lower end is fixedly connected with lower pressing cap upper surface；Upper packing is shorter in length than the cavity between upper packing box and polished rod
Highly, form a butter chamber in the upper packing box of upper packing bottom；
It is provided with lower packing box below lower pressing cap, between lower pressing cap and lower packing box, is additionally provided with lower cover, lower packing is located at down
Between packing box and polished rod.
2. Double-layer packing case according to claim 1 is it is characterised in that be provided with rubber gate on lower packing box.
3. Double-layer packing case according to claim 1 is it is characterised in that lead between upper pressing cap inwall and upper packing outer box wall
Cross threaded.
4. Double-layer packing case according to claim 1 is it is characterised in that lead between lower pressing cap inwall and lower packing outer box wall
Cross threaded.
5. Double-layer packing case according to claim 1 connects Huang it is characterised in that upper packing box surface is provided with grease nipple
Oil pocket.
6. Double-layer packing case according to claim 1 is it is characterised in that described upper pressing cap and lower pressing cap are end seal
Close, the tubular structure of open at its lower end, tubular structure upper end closed portion surrounding is provided with prominent outer, and wherein, upper end closed end is opened
There is the hole that polished rod passes through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620753723.3U CN205918389U (en) | 2016-07-18 | 2016-07-18 | Double -layer packing case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620753723.3U CN205918389U (en) | 2016-07-18 | 2016-07-18 | Double -layer packing case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205918389U true CN205918389U (en) | 2017-02-01 |
Family
ID=57874005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620753723.3U Expired - Fee Related CN205918389U (en) | 2016-07-18 | 2016-07-18 | Double -layer packing case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205918389U (en) |
-
2016
- 2016-07-18 CN CN201620753723.3U patent/CN205918389U/en not_active Expired - Fee Related
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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: 20170201 Termination date: 20170718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |