CN2191274Y - Accumulation type automatic well-head releasing packing of pumping unit - Google Patents
Accumulation type automatic well-head releasing packing of pumping unit Download PDFInfo
- Publication number
- CN2191274Y CN2191274Y CN 93222657 CN93222657U CN2191274Y CN 2191274 Y CN2191274 Y CN 2191274Y CN 93222657 CN93222657 CN 93222657 CN 93222657 U CN93222657 U CN 93222657U CN 2191274 Y CN2191274 Y CN 2191274Y
- Authority
- CN
- China
- Prior art keywords
- packing
- cap
- support box
- spring
- polished rod
- 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 an accumulation type automatic well-head releasing packing for oil field. The packing is longitudinally applied with pre-pressure which can cause the packing to horizontally expand at any time, the packing and a polished rod are provided with over-tight matching at any time after wearing, and the sealing period is long. The packing supporting box 3 in a well mouth packing box and a packing 6 which is sheathed on a polished rod 8 are provided with spring posts 1, a packing cap 4 is sheathed out of the packing supporting box 3, and stressing screws 10 are symmetrically arranged between a packing cap 4 and a well mouth four-way 9. With applying force on a lead screw, the packing caps can downwards compress the spring and the packings, the spring can store energy, so the packing can be applied with prestress which is profitable for sealing.
Description
The utility model relates to oilfield exploitation rod-pumped well mouth sealing device, belongs to energy-storage type oil pumper well head and discharges packing automatically.
Existing oil-field oil pumper well head packing box places sealing place to packing box earlier, by the precession packing cap the crush seal of many group packings.After long-term work, the packing that has worn and torn the distortion of can not regenerating in the horizontal causes the leakage of packing place, needs the diligent packing of changing, and influence is produced, and increases workload.
It is not enough in the above-mentioned background technology that the purpose of this utility model is to avoid, and provide a kind of energy-storage type oil pumper well head to discharge packing automatically, and the packing wearing and tearing are after extruding sealing at any time.
The purpose of this utility model can reach by the following technical programs: in packing support box, be enclosed within on the packing spring stack is arranged on the polished rod, packing cap is enclosed within outside the packing support box, on packing cap and the well head between the four-way symmetry be equipped with and add the wrench of a force system.
The bottom of above-mentioned packing support box is cone-shaped, but between packing and spring stack pocketed springs support box.
The utility model is compared the above-mentioned background technology can have following effect: because energy-storaging spring is housed in packing box, packing is under the certain process stage, can obtains extruding at any time to horizontal expansion after packing is worn, guarantee sealing at any time; After energy-storaging spring discharges, can make spring continue accumulation of energy, prolong the packing_seal operating period through the excess pressure screw mandrel.
Fig. 1 is that the utility model partly cuts open configuration diagram.
Will be below in conjunction with accompanying drawing to being described further with novel at the beginning of the basis:
Shown in accompanying drawing 1, on oil field shaft mouth four-way 9, pass the polished rod 8 that is connected with sucker rod, between the two (9,8) (on) packing support box 3, packing packing ring 7 and packing 6 be housed be connected packing cap 4 again, the utility model is to be enclosed within spring stack 1 is arranged on the polished rod 8 on 3 li in packing support box, packing 6, packing cap 4 is enclosed within outside the packing support box 3, and at the packing cap 4 external ring flat-plates 11 that are welded with, symmetry is fixed two and is added the wrench of a force system 10, two screw mandrels and pass ring flat-plate 11 and refill top nut 5 on well head four-way 9.
Above-mentioned in order to help the sealing of packing, the bottom of packing support box 3 is the basin cone-shaped; But pocketed springs support box 2 between packing 6 and spring stack 1, after the application of force on the screw mandrel, make on the packing face stressed, help the sealing.
Claims (3)
1, a kind of oil field energy-storage type oil pumper well head that is used for discharges packing automatically, it is to pass polished rod (8) on well head four-way (9), packing support box (3), packing packing ring (7) and packing (6) are housed between the two (9,8) and are connected packing cap (4) again, it is characterized in that: being enclosed within on packing support box (3) lining, packing (6) has spring stack (1) on the polished rod (8), packing cap (4) is enclosed within outside the packing support box (3), and symmetry is equipped with and adds the wrench of a force system (10) between packing cap (4) and four-way (9).
2, packing according to claim 1 is characterized in that: packing support box (3) bottom is cone-shaped.
3, packing as claimed in claim 1 is characterized in that: at packing (6) and spring stack (1) but between pocketed springs support box (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93222657 CN2191274Y (en) | 1993-08-21 | 1993-08-21 | Accumulation type automatic well-head releasing packing of pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93222657 CN2191274Y (en) | 1993-08-21 | 1993-08-21 | Accumulation type automatic well-head releasing packing of pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2191274Y true CN2191274Y (en) | 1995-03-08 |
Family
ID=33801189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93222657 Expired - Fee Related CN2191274Y (en) | 1993-08-21 | 1993-08-21 | Accumulation type automatic well-head releasing packing of pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2191274Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527126A (en) * | 2012-07-04 | 2014-01-22 | 中国石油天然气股份有限公司 | Oil pumping polish rod clamping and hanging device |
| CN110685630A (en) * | 2019-10-30 | 2020-01-14 | 宋晶鑫 | Multifunctional Christmas tree packing box device |
-
1993
- 1993-08-21 CN CN 93222657 patent/CN2191274Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527126A (en) * | 2012-07-04 | 2014-01-22 | 中国石油天然气股份有限公司 | Oil pumping polish rod clamping and hanging device |
| CN103527126B (en) * | 2012-07-04 | 2016-03-09 | 中国石油天然气股份有限公司 | Oil pumping polish rod card hanging device |
| CN110685630A (en) * | 2019-10-30 | 2020-01-14 | 宋晶鑫 | Multifunctional Christmas tree packing box device |
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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 |