CN201068769Y - Oil extraction wellhead reversing-proof packing kit - Google Patents
Oil extraction wellhead reversing-proof packing kit Download PDFInfo
- Publication number
- CN201068769Y CN201068769Y CNU2007200203919U CN200720020391U CN201068769Y CN 201068769 Y CN201068769 Y CN 201068769Y CN U2007200203919 U CNU2007200203919 U CN U2007200203919U CN 200720020391 U CN200720020391 U CN 200720020391U CN 201068769 Y CN201068769 Y CN 201068769Y
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- CN
- China
- Prior art keywords
- packing
- packing box
- cap
- box
- pressure cap
- 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 relates to a tilting prevention packing box of a wellhead for production. The utility model has the technical proposal that the tilting prevention packing box is composed of a packing cap (2), a packing box (3), a packing (15), a packing gland (13), a conduit (6) and a sealing ring (18). The packing box is internally provided with the packing (15), the packing box (3) is a movable packing box, the lower end of which is connected with a locking spare cap (5) and the conduit (6) in order, packing cap internal teeth are arranged on the inner cavity wall of the packing cap (2), and the packing cap internal teeth and a locking-tongue (10) are matched to be opened or closed under the action of a spring (12). The utility model has the advantages that the phenomenon that the oil is stolen due to the malicious inversion of the packing cap can be effectively avoided; when the packing is replaced, the packing box can be moved downwards by the rotation of a thread because the fixed type of the original packing box is changed into the mobile type, so as to enable the packing to be exposed and easily removed, thereby greatly improving the work efficiency of the packing replacement.
Description
One, technical field:
The utility model relates to a kind of polish rod seal device of oil exploitation industry production wellhead, particularly relates to a kind of inversion-proof packing box for oil extraction well port.
Two, background technology:
As everyone knows, in the oil exploitation industry, the dispersion of restriction that oil well distributes and is subjected to the geographical position, management difficulty is bigger, often be subjected to lawless person's invasion, especially heavy oil wells, under the comparatively perfect condition of other anti-theft measures, lawless person's comparatively simple tools commonly used is turned on well head packing pressure cap stolen, the stolen cost is low, speed is fast, be difficult to take precautions against, not only cause damage, and cause oil well accident and pollution in wide area easily to national wealth, very harmful, because the oil pumper stream time is longer, the replacing of packing becomes the groundwork of oil well management, but the continuous wearing and tearing of packing and compress aging and the packing cavity space narrow and small, make the replacing of packing difficult unusually.
Three, summary of the invention:
The purpose of this utility model is exactly the above-mentioned defective that exists at prior art, provides a kind of and not only can be convenient for changing packing but also effectively prevent the inversion-proof packing box for oil extraction well port that the packing pressure cap reverses.
Its technical scheme is: be made up of packing pressure cap (2), packing box (3), packing (15), packing gland (13), conduit (6) and sealing ring (18), be provided with packing (15) in the packing box, described packing box (3) is movable packing box, the lower end connects locking successively and is equipped with cap (5) and conduit (6), on the internal chamber wall of described packing pressure cap (2), be provided with teeth in the packing pressure cap (8), it can only be rotated downwards in the direction of the clock along packing box external screw thread (14) with dead bolt (10); Dog screw (7) is in order to the shift position that limits dead bolt (10) and prevent its rotation and lost efficacy; Between the inside and outside wall of movable packing box (3), be drilled with a unlock hole (16) with the vertical perforation of dead bolt (10), push by the trip lever (17) that inserts and to separate locked groove (11) compression spring (12) and dead bolt (10) is moved inward leave teeth (8) in the packing pressure cap, packing pressure cap this moment (2) can be rotated counterclockwise release.
Described locking is equipped with the fastening movable packing box of cap (5) (3) and shutoff or unlimited unlock hole (16).
The beneficial effects of the utility model are: this device is welded the former packing box that replaces on the well head rubber valve, design has teeth in the circle on the internal chamber wall of packing pressure cap, it cooperates with the spring bolt mechanism that the packing box top is provided with, can only rotate downwards in the direction of the clock under normal conditions and tighten, unload pine and can not rotate counterclockwise, thereby reach and when packing weares and teares poor sealing, to adjust the packing pressure cap downwards and rebulid sealing state, have to prevent effectively that the packing pressure cap from being reversed by malice and by stolen; When changing packing,, packing is exposed and very easily removal, greatly improved the operating efficiency that packing is changed because the fixed movable type that changes into of former packing box, the rotation by screw thread when changing packing can move down packing box.
Four, description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
The 1-polished rod; 2-packing pressure cap; The movable packing box of 3-; 4-packing box six sides; 5-locking is equipped with cap; 6 conduits; The 7-dog screw; Teeth in the 8-packing pressure cap; The 9-stopper slot; The 10-dead bolt; 11-separates locked groove; The 12-spring; The 13-packing gland; 14-packing box external screw thread; The 15-packing; The 16-unlock hole; The 17-trip lever; 18-" O " RunddichtringO; 19-packing box internal thread;
Five, the specific embodiment:
In conjunction with the accompanying drawings, the utility model will be further described:
By polished rod 1, packing pressure cap 2, movable packing box 3, packing box six sides 4, locking be equipped with teeth 8, stopper slot 9, dead bolt 10 in cap 5, conduit 6, dog screw 7, the packing pressure cap, separate locked groove 11, spring 12, packing gland 13, packing box external screw thread 14, packing 15, unlock hole 16, trip lever 17, " O " RunddichtringO 18, packing box internal thread 19 form; Be welded on the little four-way of virgin rubber plastic valve to replace former packing box by conduit 6, movable packing box 3 is on the top of passing through under packing box six sides' 4 the external force effect on the packing box internal thread 19 at conduit 6, form annular seal space with polished rod 1, and by " O " RunddichtringO 18 and extraneous sealing; Its internal construction is identical with former packing box with size, to adapt to the versatility of packing 15 and packing gland 13; Locking is equipped with cap 5 and is used to be equipped with tight movable packing box 3 and shutoff unlock hole 16; Being processed with teeth 8 and dead bolt 10 in the circle packing pressure cap on the internal chamber wall of packing pressure cap 2 is engaged in and makes it can only be in the direction of the clock along 14 rotations of packing box external screw thread downwards under the effect of spring 12; Dog screw 7 is in order to the shift position that limits dead bolt 10 and prevent its rotation and lost efficacy; Between the inside and outside wall of movable packing box 3, be drilled with a unlock hole 16 with dead bolt 10 vertical perforations, push by the trip lever 17 that inserts and to separate locked groove 11 compression springs 12 and dead bolt 10 is moved inward leave teeth 8 in the packing pressure cap, this moment, the packing pressure cap 2 can be rotated counterclockwise the purpose that reaches release;
During use, normality when work polished rod 1 is done work done campaign up and down reciprocatingly, the annular space of packing 15 formation between the co-extruded effect lower seal polished rod 1 of packing gland 13 and packing pressure cap 2 and conduit 6; When packing 15 wearing and tearing seal failures, rotate packing pressure cap 2, because dead bolt 10 is mutually suitable with the position relation of the interior teeth 8 of pressure cap, teeth 8 are stirred dead bolt 10 turn clockwise in the packing pressure cap, adjust sealing state downwards; And during reverse rotation, because the position of teeth 8 concern contrary in dead bolt 10 and the packing pressure cap, this moment, dead bolt 10 prevention packing pressure caps 2 backward rotation reached anti-down purpose;
When packing 15 inefficacies need to change, unload locking earlier and be equipped with cap 5, insert in the unlock hole 16 with special-purpose trip lever 17, push and separate locked groove 11, compression spring 12 makes dead bolt 10 withdrawals, and packing pressure cap 2 can be rotated counterclockwise and lay down at this moment, rotating counterclockwise 4 movable packing boxs 3 of packing box six sides moves down along conduit 6, packing 15 exposes, and finishes the operation of taking out packing 15, and then step is opposite when installing packing additional.
Claims (2)
1. inversion-proof packing box for oil extraction well port, form by packing pressure cap (2), packing box (3), packing (15), packing gland (13), conduit (6) and sealing ring (18), be provided with packing (15) in the packing box, it is characterized in that: described packing box (3) is movable packing box, the lower end connects locking successively and is equipped with cap (5) and conduit (6), on the internal chamber wall of described packing pressure cap (2), be provided with teeth in the packing pressure cap (8), it can only be rotated downwards in the direction of the clock along packing box external screw thread (14) with dead bolt (10); Dog screw (7) is in order to the shift position that limits dead bolt (10) and prevent its rotation and lost efficacy; Between the inside and outside wall of movable packing box (3), be drilled with a unlock hole (16) with the vertical perforation of dead bolt (10), push by the trip lever (17) that inserts and to separate locked groove (11) compression spring (12) and dead bolt (10) is moved inward leave teeth (8) in the packing pressure cap, packing pressure cap this moment (2) can be rotated counterclockwise release.
2. inversion-proof packing box for oil extraction well port according to claim 1 is characterized in that: described locking is equipped with the fastening movable packing box of cap (5) (3) and shutoff or unlimited unlock hole (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200203919U CN201068769Y (en) | 2007-04-10 | 2007-04-10 | Oil extraction wellhead reversing-proof packing kit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200203919U CN201068769Y (en) | 2007-04-10 | 2007-04-10 | Oil extraction wellhead reversing-proof packing kit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201068769Y true CN201068769Y (en) | 2008-06-04 |
Family
ID=39490149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200203919U Expired - Fee Related CN201068769Y (en) | 2007-04-10 | 2007-04-10 | Oil extraction wellhead reversing-proof packing kit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201068769Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054892B (en) * | 2007-05-30 | 2011-06-22 | 周宏强 | Inversion-proof packing box for oil extraction well port |
-
2007
- 2007-04-10 CN CNU2007200203919U patent/CN201068769Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054892B (en) * | 2007-05-30 | 2011-06-22 | 周宏强 | Inversion-proof packing box for oil extraction well port |
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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: 20080604 |