CN202117607U - Oil pumping polish rod sealing box - Google Patents

Oil pumping polish rod sealing box Download PDF

Info

Publication number
CN202117607U
CN202117607U CN2011202323752U CN201120232375U CN202117607U CN 202117607 U CN202117607 U CN 202117607U CN 2011202323752 U CN2011202323752 U CN 2011202323752U CN 201120232375 U CN201120232375 U CN 201120232375U CN 202117607 U CN202117607 U CN 202117607U
Authority
CN
China
Prior art keywords
box
packing box
polish rod
sealing ring
oil pumping
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
CN2011202323752U
Other languages
Chinese (zh)
Inventor
朱平
孙健
郑文
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.)
China Petroleum and Chemical Corp
Sinopec Jiangsu Oilfield Co
Original Assignee
China Petroleum and Chemical Corp
Sinopec Jiangsu Oilfield Co
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 China Petroleum and Chemical Corp, Sinopec Jiangsu Oilfield Co filed Critical China Petroleum and Chemical Corp
Priority to CN2011202323752U priority Critical patent/CN202117607U/en
Application granted granted Critical
Publication of CN202117607U publication Critical patent/CN202117607U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

An oil pumping polish rod sealing box relates to the technical field of oil well production. The upper thread of a middle box is connected with a packing box cap, the lower thread is connected with a lower packing box, an upper guiding flange is arranged in the packing box cap through an upper retaining ring, a lower guiding flange is arranged in the middle box through a lower retaining ring, an upper pressing plate is arranged in the middle box above the lower guiding flange through a boss, and a sealing ring is arranged in the middle box between the upper guiding flange and the upper pressing plate. A lubricating oil storing cavity, an air outlet and an oil squeezing hole are arranged in the middle box between the upper pressing plate and the lower guiding flange. A rubber gate box is respectively arranged in a left passage and a right passage of the lower packing box, a lower pressing plate is arranged in an upper passage through a boss, a sealing ring is arranged in an upper passage above the lower pressing plate, and a gasket is arranged between the lower guiding flange and the sealing ring. The oil pumping polish rod sealing box is simple and reasonable in structure, convenient to maintain, and convenient in daily operation of workers.

Description

The oil pumping polish rod seal box
Technical field
The utility model relates to the oil well production technical field.
Background technology
Seal box model in the oil well production is more at present, single packing box is arranged, two packing boxs are arranged, the flange form packing box is arranged, laid abnormity packing box etc. is arranged.Structure is similar, all is in order better to seal oil pumping polish rod, to prolong maintenance period.Make from the scene and to be used for seeing the problem of failing to solve following five aspects: polished rod is prone to be worn; Maintenance period is short; Maintenance cost is high; Operation inconvenience; The well head leakage of oil.Give the oil well fine-grained management, green production is brought certain trouble, has increased unnecessary workload.
Summary of the invention
The utility model purpose is to propose a kind of novel oil pumping polish rod seal box that is difficult for being worn, guaranteeing polished rod fineness that can be better be used with electrical heating oil well double plate root box sealing device.
The utility model comprises packing box under packing box pressure cap, middle box and the cross, said in the middle of the upper end screw thread terminal pad root box pressing cap of box, the lower end packing box that is threaded down; In the packing box pressure cap through on back-up ring guiding is set at a distance from blue; In middle box,, through boss top board is set in the middle box above the separated orchid of leading down, and in the middle box between orchid and the top board, sealing ring is set in last guiding through leading under back-up ring is provided with down at a distance from blue; Top board and down guiding in middle the box between the orchid, be provided with and store up the lubrication oil cavity, at the sidewall of middle box venthole and the crowded oilhole that is communicated with said storage lubrication oil cavity respectively is set; Under said cross packing box about rubber gate box is set in two passages respectively, in upper channel, lower platen is set through boss, in the upper channel above lower platen sealing ring is set, between orchid and sealing ring, pad is set in said guiding down.
The utility model can be used in combination with electrical heating oil well double plate root box sealing device, injects in oil storage space and can well protect polished rod not by hard grind, do not dry grinded under the lubricated oil condition, guarantees the fineness of polished rod, delays the corrosion of polished rod.The utility model is simple and reasonable for structure, maintains easily, and workman's regular job is convenient, goes for the pumpingh well of any oil, better is the field produces service.
The utility model also fixedly installs handle at packing box pressure cap outer wall.Fixedly install handle at middle box outer wall.Rotary handle just can be dismantled during regular maintenance, need not be with pipe wrench.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
The specific embodiment
As shown in Figure 1, the utility model is provided with packing box 3 under packing box pressure cap 1, middle box 2 and the cross, the upper end screw thread terminal pad root box pressing cap 1 of middle box 2, the lower end packing box 3 that is threaded down.
In packing box pressure cap 1 through on back-up ring 4 guiding is set at a distance from blue 5.Fixedly install handle 11 at packing box pressure cap 1 outer wall.
In middle box 2,, through boss 8 top board 9 is set in the middle box 2 above the separated orchid 7 of leading down, and in the middle box 2 between orchid 5 and the top board 9, sealing ring 10 is set last the guiding through the separated orchid 7 of leading under back-up ring 6 is provided with down.
Top board 9 and down guiding storage lubrication oil cavity 20 is set in middle the box 2 between blue 7, at the sidewall of middle box 2 venthole 13 and the crowded oilhole 14 that is communicated with storage lubrication oil cavity 20 respectively is set, fixedly install handle 12 at middle box 2 outer walls.
Under cross packing box 3 about rubber gate box 15,16 is set in two passages respectively; In upper channel, lower platen 17 is set through boss; Sealing ring 18 is set in the upper channel above lower platen 17, between guiding separated blue 7 and the sealing ring 18 pad 19 is being set down.

Claims (3)

1. the oil pumping polish rod seal box comprises packing box under packing box pressure cap, middle box and the cross, said in the middle of the upper end screw thread terminal pad root box pressing cap of box, the lower end packing box that is threaded down; It is characterized in that: in the packing box pressure cap through on back-up ring guiding is set at a distance from blue; In middle box,, through boss top board is set in the middle box above the separated orchid of leading down, and in the middle box between orchid and the top board, sealing ring is set in last guiding through leading under back-up ring is provided with down at a distance from blue; Top board and down guiding in middle the box between the orchid, be provided with and store up the lubrication oil cavity, at the sidewall of middle box venthole and the crowded oilhole that is communicated with said storage lubrication oil cavity respectively is set; Under said cross packing box about rubber gate box is set in two passages respectively, in upper channel, lower platen is set through boss, in the upper channel above lower platen sealing ring is set, between orchid and sealing ring, pad is set in said guiding down.
2. according to the said oil pumping polish rod seal box of claim 1, it is characterized in that fixedly installing handle at packing box pressure cap outer wall.
3. according to the said oil pumping polish rod seal box of claim 1, it is characterized in that fixedly installing handle at middle box outer wall.
CN2011202323752U 2011-07-04 2011-07-04 Oil pumping polish rod sealing box Expired - Fee Related CN202117607U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202323752U CN202117607U (en) 2011-07-04 2011-07-04 Oil pumping polish rod sealing box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202323752U CN202117607U (en) 2011-07-04 2011-07-04 Oil pumping polish rod sealing box

Publications (1)

Publication Number Publication Date
CN202117607U true CN202117607U (en) 2012-01-18

Family

ID=45458680

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202323752U Expired - Fee Related CN202117607U (en) 2011-07-04 2011-07-04 Oil pumping polish rod sealing box

Country Status (1)

Country Link
CN (1) CN202117607U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103790540A (en) * 2012-10-29 2014-05-14 中国石油化工股份有限公司 Pumping well mouth lubricating dual-sealing device
WO2016004797A1 (en) * 2014-07-10 2016-01-14 刘玉玺 Oil-pumping polished rod motion-following sealer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103790540A (en) * 2012-10-29 2014-05-14 中国石油化工股份有限公司 Pumping well mouth lubricating dual-sealing device
WO2016004797A1 (en) * 2014-07-10 2016-01-14 刘玉玺 Oil-pumping polished rod motion-following sealer

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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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120118

Termination date: 20190704