CN2521378Y - Wellhead sealing box cover clamping device - Google Patents
Wellhead sealing box cover clamping device Download PDFInfo
- Publication number
- CN2521378Y CN2521378Y CN 01278474 CN01278474U CN2521378Y CN 2521378 Y CN2521378 Y CN 2521378Y CN 01278474 CN01278474 CN 01278474 CN 01278474 U CN01278474 U CN 01278474U CN 2521378 Y CN2521378 Y CN 2521378Y
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- clamping device
- box cover
- rubber pad
- sealing 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 27
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003129 oil well Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 2
- 230000013011 mating Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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- Closures For Containers (AREA)
Abstract
A clamping device for a wellhead sealing box cover relates to a mechanical oil extraction wellhead mating tool. The support is formed by connecting two support components together through a pin shaft, the other ends of the support components are connected together through bolts, a rubber pad is arranged on each support component, and a circular arc-shaped longitudinal groove is formed in each rubber pad. The oil well sealing ring has the advantages that when the sealing ring needs to be replaced at the mouth of the oil well, the sealing box cover can be conveniently and reliably supported on the polish rod by using the oil well sealing ring, the phenomenon of slipping is avoided, the safety production can be ensured, the accidents are avoided, and the number of workers is reduced. The clamping device is used in the oil extraction work of the beam pumping unit.
Description
Technical field
The utility model relates to a kind of mechanical oil recovery well head kit.
Technical background
In the mechanical oil recovery on the oil field, using maximum is beam pumping unit, and the oil well pump that drives the down-hole by sucker rod recovers the oil.The top of sucker rod connects polished rod, and polished rod is equipped with sealing ring by the seal box of well head in the seal box, by sealing lid and pressure ring sealing ring is compressed, in order to avoid crude oil leaks outside in oil recovery process.After using a period of time, sealing ring will wear and tear, and needs to change.All be manually to change sealing ring at present, will seal lid and open, take out the sealing ring that is worn, add new sealing ring again, and then cover the sealing lid.Because sealing lid and pressure ring are enclosed within on the polished rod, they can not be taken off, do not have special tool again, when changing sealing ring, they must be held up, heavier because of sealing lid, add pressure ring, hold up that they are very inconvenient, generally can only be hung in sealing lid and pressure ring on the polished rod eye with rope or iron wire, dangerous so again, seal cover tends to split away off, and injures workman's arm by a crashing object.For preventing accident, come together to change sealing ring with regard to needing two people, a people holds up seal cover, and another person changes, and so just needs to increase the staff, requires great effort very much again.
The utility model content
The purpose of this utility model is a kind of well head of a design sealing lid supporting and wedging device, utilize it can be safely and reliably with well head seal cover rest on polished rod so that change the well head sealing ring safely, reduce a staff, increase work efficiency.
Technical solution of the present utility model is to realize like this, a kind of well head sealing lid supporting and wedging device, its special character is that the end by two cradling elements is bound up by bearing pin and constitutes, the other end of cradling element by bolted on connection together, rubber pad is housed on the cradling element, has the longitudinal fluting of circular arc on the rubber pad.
The utility model has the advantages that, when well mouth of oil well need be changed sealing ring, use this supporting and wedging device can be easily and reliably with the seal cover rest on polished rod, the phenomenon of slippage can not take place, can ensure safety in production, avoid having an accident, reduce a staff.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
One end of cradling element 4 has screw thread, the other end has " U " opening, one end of cradling element 9 has screw thread, the other end has through hole, the rubber pad 3 that will have circular groove is contained on the cradling element 4,9, by steel disc 5 and bearing pin 7 they are bound up, nut 6 ( cradling element 4,9 and steel disc also can be manufactured in aggregates, uneasy loading nut 6) is installed respectively.Screw rod 1 is connect with cradling element 9 mutually by bearing pin 8, have nut 2 on the screw rod 1.During use, well head is sealed lid and pressure ring picking-up, the groove of rubber pad 3 is placed appropriate location on the polished rod of well mouth of oil well, cradling element 4,9 is fastened on the below that seals lid and pressure ring on the polished rod by screw rod 1 and nut 2, sealing lid and pressure ring promptly can not slided on polished rod by rest again, and can change sealing ring this moment easily. Cradling element 4,9 also can be made into the shell of circular arc or straight shape with steel plate, and rubber pad 3 also is made into corresponding circular arc or straight shape, is installed in the shell, and an end of two shells is bound up by bearing pin, and the other end connects with nut 2 mutually by screw 1.
Claims (1)
1. a well head sealing lid supporting and wedging device is characterized in that,
1. by two cradling elements (4,9) by bearing pin (7) formation that is bound up, the other end of cradling element (4,9) is bound up by bolt (1);
2. on the cradling element (4,9) rubber pad (3) is housed, the longitudinal fluting that has circular arc on the rubber pad (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01278474 CN2521378Y (en) | 2001-12-17 | 2001-12-17 | Wellhead sealing box cover clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01278474 CN2521378Y (en) | 2001-12-17 | 2001-12-17 | Wellhead sealing box cover clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2521378Y true CN2521378Y (en) | 2002-11-20 |
Family
ID=33681954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01278474 Expired - Lifetime CN2521378Y (en) | 2001-12-17 | 2001-12-17 | Wellhead sealing box cover clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2521378Y (en) |
-
2001
- 2001-12-17 CN CN 01278474 patent/CN2521378Y/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111217 Granted publication date: 20021120 |