CN203285379U - Packing box-adjustable eccentric-grinding-resisting device - Google Patents
Packing box-adjustable eccentric-grinding-resisting device Download PDFInfo
- Publication number
- CN203285379U CN203285379U CN2013203315767U CN201320331576U CN203285379U CN 203285379 U CN203285379 U CN 203285379U CN 2013203315767 U CN2013203315767 U CN 2013203315767U CN 201320331576 U CN201320331576 U CN 201320331576U CN 203285379 U CN203285379 U CN 203285379U
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- shaped
- packing box
- aperture
- cap
- small
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Abstract
The utility model relates to auxiliary devices in the field of petroleum exploitation, in particular to a packing box-adjustable eccentric-grinding-resisting device used in an oil well head. According to the technical scheme, two T-shaped discs with different apertures are arranged, the external diameter of the T-shaped disc with a small aperture is smaller than or equal to the outer diameter of the T-shaped disc with a large aperture, the top faces of the two T-shaped discs abut against each other, the T-shaped disc with the small aperture is sleeved with a U-shaped cap, the inner aperture of the U-shaped cap is smaller than the outer aperture of the T-shaped disc with the small aperture, and the U-shaped cap is in threaded connection with the periphery of the T-shaped disc with the large aperture. The Packing box-adjustable eccentric-grinding-resisting device has the advantages of being simple in structure, fast to install, convenient to use, easy to disassemble and convenient to maintain, and particularly enables wellhead packing to play a role in sealing effectively.
Description
Technical field
The utility model relates to the servicing unit in field of petroleum exploitation, specifically relates to the adjustable anti-eccentric wearing device of a kind of packing box that uses on well mouth of oil well.
Background technology
At present, some oil well of Shengli Oil Field can't long term seal use because the well head eccentric wear causes packing, having brought for the normal production of oil well has a strong impact on, for the well head packing sealing phase is extended, often use single belt to replace sealed packing, but can't guarantee the wellhead sealing effect, also accelerated the wearing and tearing of polished rod, increase simultaneously worker's labour intensity, caused well head leakage pollution and serious crude oil loss.
Summary of the invention
The purpose of this utility model is exactly the defect that exists for prior art, develop the adjustable anti-eccentric wearing device of a kind of packing box, be used for guaranteeing well centering of oil-extractor polish-rod and wellhead packing box, make well head packing can effectively play sealing function, this utility model is easy for installation, time saving and energy saving, be easy to dismounting.
Its technical scheme is: by two T-shaped dishes that aperture is different, the external diameter of the T-shaped dish in small-bore less than or the outside dimension of the T-shaped dish in equal large aperture, the end face docking of two T-shaped dishes, from sheathed U-shaped cap on the T-shaped dish in small-bore, the internal orifice dimension of U-shaped cap is less than the outside dimension of the T-shaped dish in small-bore, and U-shaped cap is connected with the peripheral thread of the T-shaped dish in large aperture.
The end face interface of two T-shaped dishes arranges zero sealing ring.
On U-shaped cap, bolt is set, the front end of bolt is compressed on the T-shaped dish in small-bore.
Described U-shaped cap peripheral radial is symmetrical arranged handlebar.
Beneficial effect: this utility model has simple in structure, and is quick for installation, easy to use, is easy to dismounting, and advantage easy to maintenance, especially make well head packing can effectively play sealing function.
Description of drawings
Accompanying drawing 1 is the structural representation of the present embodiment.
The specific embodiment
be further described below in conjunction with accompanying drawing 1: by two T-shaped dishes that aperture is different, the external diameter of the T-shaped dish 2 in small-bore less than or the outside dimension of the T-shaped dish 6 in equal large aperture, the end face docking of two T-shaped dishes, from sheathed U-shaped cap 4 on the T-shaped dish 2 in small-bore, the internal orifice dimension of U-shaped cap 4 is less than the outside dimension of the T-shaped dish 2 in small-bore, U-shaped cap 4 is connected with the peripheral thread of the T-shaped dish 6 in large aperture, the end face interface of two T-shaped dishes arranges zero sealing ring 5, on U-shaped cap 4, bolt 3 is set, the front end of bolt 3 is compressed on the T-shaped dish 2 in small-bore, described U-shaped cap 4 peripheral radials are symmetrical arranged handlebar 7.
Wellhead packing box is arranged on the top polished rod of this device, has guaranteed well centering of oil-extractor polish-rod and wellhead packing box, makes well head packing can effectively play sealing function.
Claims (4)
1. adjustable anti-eccentric wearing device of packing box, it is characterized in that: by two T-shaped dishes that aperture is different, the external diameter of the T-shaped dish in small-bore less than or the outside dimension of the T-shaped dish in equal large aperture, the end face docking of two T-shaped dishes, from sheathed U-shaped cap on the T-shaped dish in small-bore, the internal orifice dimension of U-shaped cap is less than the outside dimension of the T-shaped dish in small-bore, and U-shaped cap is connected with the peripheral thread of the T-shaped dish in large aperture.
2. the adjustable anti-eccentric wearing device of packing box according to claim 1, it is characterized in that: the end face interface of two T-shaped dishes arranges zero sealing ring.
3. the adjustable anti-eccentric wearing device of packing box according to claim 1 and 2, it is characterized in that: on U-shaped cap, bolt is set, the front end of bolt is compressed on the T-shaped dish in small-bore.
4. the adjustable anti-eccentric wearing device of root packing box according to claim 3, it is characterized in that: described U-shaped cap peripheral radial is symmetrical arranged handlebar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203315767U CN203285379U (en) | 2013-06-06 | 2013-06-06 | Packing box-adjustable eccentric-grinding-resisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203315767U CN203285379U (en) | 2013-06-06 | 2013-06-06 | Packing box-adjustable eccentric-grinding-resisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285379U true CN203285379U (en) | 2013-11-13 |
Family
ID=49541749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203315767U Expired - Fee Related CN203285379U (en) | 2013-06-06 | 2013-06-06 | Packing box-adjustable eccentric-grinding-resisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285379U (en) |
-
2013
- 2013-06-06 CN CN2013203315767U patent/CN203285379U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20140606 |