CN2303928Y - Easy-to-fit and change packing-type polish-rod sealing device - Google Patents
Easy-to-fit and change packing-type polish-rod sealing device Download PDFInfo
- Publication number
- CN2303928Y CN2303928Y CN 97220052 CN97220052U CN2303928Y CN 2303928 Y CN2303928 Y CN 2303928Y CN 97220052 CN97220052 CN 97220052 CN 97220052 U CN97220052 U CN 97220052U CN 2303928 Y CN2303928 Y CN 2303928Y
- Authority
- CN
- China
- Prior art keywords
- packing
- circular arc
- main body
- rings
- packing 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
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- Sealing Devices (AREA)
Abstract
The utility model relates to an easy-to-fit and change packing-type polish-rod sealing device which is a polish-rod sealing device for well heads of oil pumping units for oil fields. The upper end of the core of a main body is provided with a step with a circular arc groove and two tapered circular arc chuck rings, the chuck ring against a packing box is hung on the upper end of the core of the main body, and all of the packings are arranged in the circular arc chuck rings. The screw connection of a press cap against the packing box and the main body tightly presses on the two circular arc rings, and the inner side of the press cap of the packing box is the same as the two circular arc chuck rings and is provided with a certain taper. With the tight screw of the screw, the packing is pressed by the circular arc chuck rings more tightly, the change of the packing is more convenient, and the utility model has the advantages of reasonable structure, simple operation, easy-to-fit and change of the packing, and reliable seal, and is more suitable for application in the field.
Description
The utility model relates to a kind of polish rod seal device of oil-field oil pumper well head, easy-to-fit and change packing-type polished rod sealer.
Because the friction effect between polished rod and the packing, packing is worn after using a period of time, and is oil-proof in order to guarantee well head, packing_seal is reliable, must in time change packing, and the packing box packing that uses at present is contained in the main body fuse, dress changes the more time-consuming difficulty of packing, complicated operation.
The purpose of this utility model is to provide a kind of easy-to-fit and change packing-type polished rod sealer, the structure uniqueness, and it is convenient that packing is installed, and increases work efficiency.
The purpose of this utility model is to realize like this, it is by flat clamp (1), housing screw (2), semicircle pressing plate (3), main body (4), stripper rubber (5), main body fuse (6), housing (7), big gland (8), leading screw (9), packing pressure cap (10), packing pressure pad (11), packing (12), spigot nut (13), guider screw (14), packing box pressure cap (15), circular arc pressure ring (16), rubber packing (17), packing gland (18) constitutes, its design feature is: packing is not to be contained in the main body fuse, but with the step that is designed on the main body fuse with the arc groove, the circular arc pressure ring of two band taperings of design, hang over main body fuse upper end by the packing box pressure ring, all packings just are contained in the circular arc pressure ring, by the screwed connection between packing box pressure cap and the main body two circular arc rings are compressed, the packing box pressure cap is inboard the same with two circular arc pressure rings, have certain tapering, along with tightening of screw thread, packing is crowded more tight more by the circular arc pressure ring, has guaranteed the sealing between polished rod and the packing.
The utility model is owing to adopted the circular arc pressure ring of two band taperings, and packing just is contained in the circular arc pressure ring, makes the replacing packing more convenient, rational in infrastructure, simple to operate, and the polished rod sealer sealing of easy-to-fit and change packing is reliable, is more suitable for The field.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is illustrated.
It is as follows to adorn the polished rod sealer use of changing packing:
Packing is installed:
A. two circular arc pressure rings (16) are hung over main body (4) upper end, 9 rubber packings (17) are contained in the circular arc pressure ring (16), are with packing gland (18).
B. with the screwed connection between packing box pressure cap (15) and the main body (4), tighten, install with pipe wrench.
Change packing:
A. turn on standby packing pressure cap (15) with pipe wrench, take out packing box gland (18).
B. two circular arc pressure rings (16) are unloaded, take out all rubber packings (17).(3) two circular arc pressure rings (16) are hung on the main body (4), nine packings (17) are contained in the circular arc pressure ring, are with packing box gland (18).
C. with packing box pressure cap (15) and main body (4) screwed connection, tighten with pipe wrench, replacing finishes.
Claims (2)
1. the utility model relates to a kind of polish rod seal device of oil-field oil pumper well head, easy-to-fit and change packing-type polished rod sealer, it is by flat clamp (1), housing screw (2), semicircle pressing plate (3), main body (4), stripper rubber (5), main body fuse (6), housing (7), big gland (8), leading screw (9), packing pressure cap (10), packing pressure pad (11), packing (12), spigot nut (13), guider screw (14), packing box pressure cap (15), circular arc pressure ring (16), rubber packing (17), packing gland (18) constitutes, it is characterized in that: rubber packing (17) is not to be contained in the main body fuse, but with the step that is designed on the main body fuse (6) with the arc groove, the circular arc pressure ring (16) of two band taperings of design, hang over main body fuse (6) upper end by packing box pressure cap (15), all rubber packings (17) just are contained in the circular arc pressure ring (16), by the screwed connection between packing box pressure cap (15) and the main body (4) two circular arc pressure rings (16) are compressed, packing box pressure cap (15) is inboard the same with two circular arc pressure rings (16), have certain tapering, along with tightening of screw thread, rubber packing (17) is crowded more tight more by circular arc pressure ring (16), has guaranteed the sealing between polished rod and the packing.
2. easy-to-fit and change packing-type polished rod sealer according to claim 1 is characterized in that: two circular arc pressure rings (16) hang on the main body (4), and nine rubber packings (17) are contained in the circular arc pressure ring (16), are with packing box pressure cap (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97220052 CN2303928Y (en) | 1997-07-11 | 1997-07-11 | Easy-to-fit and change packing-type polish-rod sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97220052 CN2303928Y (en) | 1997-07-11 | 1997-07-11 | Easy-to-fit and change packing-type polish-rod sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2303928Y true CN2303928Y (en) | 1999-01-13 |
Family
ID=33935841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97220052 Expired - Fee Related CN2303928Y (en) | 1997-07-11 | 1997-07-11 | Easy-to-fit and change packing-type polish-rod sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2303928Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049599A (en) * | 2020-09-30 | 2020-12-08 | 大庆大田石油机械制造有限公司 | Injection type polish rod sealer without dismantling |
-
1997
- 1997-07-11 CN CN 97220052 patent/CN2303928Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049599A (en) * | 2020-09-30 | 2020-12-08 | 大庆大田石油机械制造有限公司 | Injection type polish rod sealer without dismantling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |