CN203531822U - Auxiliary seal packing box of pumping well polished rod - Google Patents
Auxiliary seal packing box of pumping well polished rod Download PDFInfo
- Publication number
- CN203531822U CN203531822U CN201320702974.5U CN201320702974U CN203531822U CN 203531822 U CN203531822 U CN 203531822U CN 201320702974 U CN201320702974 U CN 201320702974U CN 203531822 U CN203531822 U CN 203531822U
- Authority
- CN
- China
- Prior art keywords
- packing box
- auxiliary seal
- seal packing
- ring
- pumping well
- 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
An auxiliary seal packing box of a pumping well polished rod comprises a press cap (1), an upper ring (2), a press cover (3) and a lower ring (4) and is characterized in that the auxiliary seal packing box of the pumping well polished rod is of a cylindrical structure, a through hole of the polished rod (5) is formed in the top of the press cap (1), the ring (2), the press cover (3) and the lower ring (4) are installed inside the auxiliary seal packing box, and inner threads are arranged at the lower portion of the press cap (1). The auxiliary seal packing box is novel in structure, convenient to install and good in sealing performance, the service life of a packing is prolonged, and crude oil loss caused by packing oil leakage is avoided. In addition, a well opening and a well field are prevented from being polluted, and the oil well management level is improved.
Description
Technical field
the utility model relates to oil field pumping well Polish rod packing sealing device, specifically a kind of pumping well polish rod auxiliary seal packing box.
Background technology
in oil field pumping well is produced, pumping well polish rod is because doing for a long time upper and lower motion, packing_seal is particularly important, and common packing_seal is under the effect of pressure, and packing produces radial elastic deformation sealing polished rod, when the elastic deformation of packing reaches capacity, seal and lost efficacy, packing oil leakage, not only causes crude oil loss, and pollute well head and well site, restricting the raising of Oil wells management level.
Summary of the invention
the purpose of this utility model is exactly in view of the foregoing defects the prior art has, designs a kind of pumping well polish rod auxiliary seal packing box.
the utility model is realized by following technical proposals:
the utility model comprises: pressure cap, pressed on ring, gland, lower ring.Its pumping well polish rod auxiliary seal packing box is columnar structured, and pressure cap top is provided with the through hole of polished rod, and pressed on ring, gland, lower ring are equipped with in inside, and pressure cap bottom is provided with internal thread.
upper ring and lower ring center in above-mentioned pumping well polish rod auxiliary seal packing box is equipped with tapered hole.
gland in above-mentioned pumping well polish rod auxiliary seal packing box is bicone structure, and center is provided with the cavity volume of packing, and upper and lower intersection is provided with 3～4 upper sheds and under shed, and opening is all two ends coupled situation in mistake middle part.
operating principle: press function is in upper ring and lower ring, and the tapered hole of upper ring and lower ring acts on the conical surface of gland, gland produces radial load, makes packing produce radial contraction, makes packing play auxiliary seal effect to polished rod.
the beneficial effects of the utility model are: novel structure, easy for installation, good seal, extends packing application life, not only avoids packing oil leakage to cause crude oil loss, and prevents from polluting well head and well site, improves Oil wells management level.
Accompanying drawing explanation
fig. 1-the utility model master looks complete section structural representation.
the plan structure schematic diagram of Fig. 2-the utility model bicone gland 3.
in figure, 1. pressure cap, 2. pressed on ring, 3. gland, 4. time ring, 5. polished rod, 6. packing, 7. former packing box; A. under shed, B. upper shed.
The specific embodiment
below in conjunction with accompanying drawing, enforcement of the present utility model is further elaborated:
pumping well polish rod auxiliary seal packing box is comprised of pressure cap 1, pressed on ring 2, gland 3, lower ring 4.Its pumping well polish rod auxiliary seal packing box is columnar structured, and pressure cap 1 top is provided with the through hole of polished rod 5, and pressed on ring 2, gland 3, lower ring 4 are equipped with in inside, and pressure cap 1 bottom is provided with internal thread.During installation, first, lay down gland and the pressure cap of former packing box 7; Secondly, pressure cap 1 lower internal thread is threaded with former polished rod sealer; The 3rd, in gland 3, fill it up with packing 6, tighten pressure cap 1.
Claims (3)
1. a pumping well polish rod auxiliary seal packing box, comprising: pressure cap (1), pressed on ring (2), gland (3), lower ring (4); It is characterized in that: described pumping well polish rod auxiliary seal packing box is columnar structured, pressure cap (1) top is provided with the through hole of polished rod (5), and pressed on ring (2), gland (3), lower ring (4) are equipped with in inside, and pressure cap (1) bottom is provided with internal thread.
2. pumping well polish rod auxiliary seal packing box according to claim 1, is characterized in that: described pressed on ring (2), lower ring (4) center are equipped with tapered hole.
3. pumping well polish rod auxiliary seal packing box according to claim 1, it is characterized in that: described gland (3) is bicone structure, center is provided with the cavity volume of packing (6), upper and lower intersection is provided with 3～4 upper sheds (B) and under shed (A), and opening is all two ends coupled situation in mistake middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320702974.5U CN203531822U (en) | 2013-11-10 | 2013-11-10 | Auxiliary seal packing box of pumping well polished rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320702974.5U CN203531822U (en) | 2013-11-10 | 2013-11-10 | Auxiliary seal packing box of pumping well polished rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203531822U true CN203531822U (en) | 2014-04-09 |
Family
ID=50418044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320702974.5U Expired - Fee Related CN203531822U (en) | 2013-11-10 | 2013-11-10 | Auxiliary seal packing box of pumping well polished rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203531822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675359A (en) * | 2015-01-21 | 2015-06-03 | 铜仁中能天然气有限公司 | Safe shale gas well plugging device |
-
2013
- 2013-11-10 CN CN201320702974.5U patent/CN203531822U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675359A (en) * | 2015-01-21 | 2015-06-03 | 铜仁中能天然气有限公司 | Safe shale gas well plugging 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: 20140409 Termination date: 20141110 |
|
| EXPY | Termination of patent right or utility model |