CN205918389U - Double -layer packing case - Google Patents

Double -layer packing case Download PDF

Info

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
Application number
CN201620753723.3U
Other languages
Chinese (zh)
Inventor
王辉
马倩
孙洪亮
西文磊
王纪娟
马建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201620753723.3U priority Critical patent/CN205918389U/en
Application granted granted Critical
Publication of CN205918389U publication Critical patent/CN205918389U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • 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

Double-layer packing case
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.
CN201620753723.3U 2016-07-18 2016-07-18 Double -layer packing case Expired - Fee Related CN205918389U (en)

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)

Similar Documents

Publication Publication Date Title
CN203655585U (en) Long plunger type injection-production pump
CN205918389U (en) Double -layer packing case
CN205779596U (en) A kind of oil well pump and flow string
CN2811599Y (en) Hydraulic self-sealing plunger oil-well pump
CN206144766U (en) Super -long -stroke oil pump
CN201184171Y (en) Bias-wearing-proof pumping unit
CN204984366U (en) Increase lifting devices in pit reciprocates
CN204738779U (en) Clean environment -friendly device of pumpingh well well head
CN208702366U (en) Unidirectional tuningout energy conservation well-sealing device
CN205172529U (en) Can lubricate abrasionproof oil jack
CN208281149U (en) A kind of self compensation elastic-sealed oil pump and elastic sealing device
CN206545494U (en) Polished rod lubrication and seal device
CN205036540U (en) Latent oily linear electric motor oil production device of two effects
CN205172464U (en) Oil pipe post is taken out to self -lubricating sucker rod abrasionproof
CN205100951U (en) Interior lubricated eccentric wear prevention oil production device
CN208294489U (en) A kind of novel oil-filling type bilayer waterproof packing box
CN204877823U (en) Fluid infusion pump
CN204716209U (en) Vacuum type fluid power pumping positive displacement pump
CN209781177U (en) Gas injection oil-well pump convenient to draining and well-flushing
CN209483276U (en) Pumping well polish rod double-layer sealing structure
CN105625973A (en) Wellhead sealing device for extracting oil
CN204677149U (en) Rod-pumped well NEW TYPE OF COMPOSITE medium charge type polished rod sealer
CN204754851U (en) Wear -resisting packing box of tuningout
CN203230363U (en) Anti-overflow telescopic nipple
CN208885252U (en) A kind of water layer gas well sucker rod pump water pumping gas production equipment

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