CN2500794Y - Top and bottom adjustable packer box - Google Patents
Top and bottom adjustable packer box Download PDFInfo
- Publication number
- CN2500794Y CN2500794Y CN 01250720 CN01250720U CN2500794Y CN 2500794 Y CN2500794 Y CN 2500794Y CN 01250720 CN01250720 CN 01250720 CN 01250720 U CN01250720 U CN 01250720U CN 2500794 Y CN2500794 Y CN 2500794Y
- Authority
- CN
- China
- Prior art keywords
- packing box
- packing
- cover
- screw thread
- paying
- 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 is an up-low adjustable packing box, relating to a sealing device used to seal the mouth of the pumping oil wells in oil field, an internal screw thread in the lower part of the pressure cap (2) of the packing box is connected with an external screw in the upper part of the assistant sleeve (6) to form a thread connection, the internal screw thread in the lower part of the assistant sleeve (6) is connected with the external screw thread in the upper part of the top core (8), the packing box gaskets (4) are arranged between the up end of the top core (8) and the inner wall of the assistant sleeve (6), a flange is arranged between the upper end of the gaskets and the inner wall of the assistant sleeve. The device can make the best use of the packing sets, solving the problem that the packing set is fragile when under the cold in winter, the packing set can be fetched out and need worker to dig out with hands, the problem of packing set of one well need long time to solve, the utility model can adjust the depth of the packing box and the tightness of the packing sets, adding packing set one time for less than 1 minute, so the efficiency is enhanced and the labor intensity is reduced.
Description
Technical field: the utility model relates to a kind of sealing device of oilfield pumping well well head.
Background technology: the packing box of oilfield pumping well well head use at present is because structure is reasonable inadequately, even packing box is tightened to extreme position, can not use packing to greatest extent, can't regulate the weight of packing box and the elasticity of packing by the oil well actual conditions, and to scratch effort very when getting old packing with hand.
Summary of the invention: the utility model is at existing packing box unreasonable structure, and cause that packing box can't be regulated weight, the packing utilization rate is low and get the shortcoming of old packing effort, study a kind of adjustable packing box up and down, make its good sealing effect, it is convenient to pick and place packing, the weight of packing box can be regulated with working condition, and makes the utilization rate of packing be maximum.The utility model includes pays cover 6, locking plate 7, plunger tip 8, packing box pressure cap 2, packing box pad 4, Golan 3; The internal thread of packing box pressure cap 2 bottoms forms with the external screw thread of paying cover 6 tops and is threaded, paying the internal thread of cover 6 bottoms is threaded with external screw thread formation on the plunger tip 8, in the upper surface of plunger tip 8 and pay between cover 6 inwalls and be provided with packing box pad 4, be provided with Golan 3 with paying to overlap between 6 the inwall in the upper surface of packing box pad 4.This apparatus structure is simple, good sealing effect, can utilize packing to greatest extent, solved that winter, packing was endured cold frangible in the past, following packing is got to be come out, and needs the workman bare-handed stingy, cannot not add intactly the packing problem of a bite well sometimes half a day yet, and can regulate the weight of packing box and the elasticity of packing according to the rod-pumped well actual conditions, the time that adds a packing with the utility model is no more than one minute, thereby has improved operating efficiency, has also alleviated working strength of workers.
Description of drawings: Fig. 1 is the structural representation of the utility model specific embodiment.
The specific embodiment: present embodiment is made up of packing box handle 1, packing box pressure cap 2, Golan 3, packing box pad 4, pair cover handle 5, pair cover 6, locking plate 7, plunger tip 8, packing 9, well head 10.The internal thread of packing box pressure cap 2 bottoms forms with the external screw thread of paying cover 6 tops and is threaded, paying the internal thread of cover 6 bottoms is threaded with external screw thread formation on the plunger tip 8, in the upper surface of plunger tip 8 and pay between cover 6 inwalls and be provided with packing box pad 4, be provided with Golan 3 with paying to overlap between 6 the inwall in the upper surface of packing box pad 4.Packing 9 is arranged between Golan 3 and the packing box pad 4, fixedly connected with well head 10 in the lower end of plunger tip 8, locking plate 7 is fixed on the lower end of paying cover 6 and forms and be threaded with external screw thread on the plunger tip 8, packing box handle 1 is fixed on the excircle of packing box pressure cap 2 upper ends, pays cover handle 5 and is fixed on the excircle of paying cover 6 upper ends.Its principle is to wait accessory by the cover of setting up of paying, can adjust plunger tip and move up and down with paying an inner room, the weight of adjustable disc root and the elasticity of packing, thus prolong packing application life to greatest extent, when changing packing, earlier packing box pressure cap 2 is opened, rotated then and pay cover handle 5, a pair cover 6 is moved down, 8 of plunger tips move on relatively, packing all can be withdrawed from, and then select the suitable packing box degree of depth, just can add the operation of new packing according to the actual conditions of rod-pumped well.
Claims (4)
1, adjustable up and down packing box is characterized in that it includes pair cover (6), a locking plate (7), plunger tip (8), packing box pressure cap (2), packing box pad (4), Golan (3); The internal thread of packing box pressure cap (2) bottom forms with the external screw thread of paying cover (6) top and is threaded, paying the internal thread of cover (6) bottom is threaded with external screw thread formation on the plunger tip (8), in the upper surface of plunger tip (8) and pay between cover (6) inwall and be provided with packing box pad (4), be provided with Golan (3) with paying between the inwall that overlaps (6) in the upper surface of packing box pad (4).
2, adjustable packing box up and down according to claim 1 is characterized in that packing box handle (1) is fixed on the excircle of packing box pressure cap (2) upper end.
3, adjustable packing box up and down according to claim 1 is characterized in that paying cover handle (5) and is fixed on the excircle of paying cover (6) upper end.
4, up and down adjustable packing box according to claim 1 is characterized in that locking plate (7) is fixed on to pay cover (6) lower end and form and be threaded with external screw thread on the plunger tip (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250720 CN2500794Y (en) | 2001-09-14 | 2001-09-14 | Top and bottom adjustable packer box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250720 CN2500794Y (en) | 2001-09-14 | 2001-09-14 | Top and bottom adjustable packer box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2500794Y true CN2500794Y (en) | 2002-07-17 |
Family
ID=33660808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01250720 Expired - Fee Related CN2500794Y (en) | 2001-09-14 | 2001-09-14 | Top and bottom adjustable packer box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2500794Y (en) |
-
2001
- 2001-09-14 CN CN 01250720 patent/CN2500794Y/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: 20020717 Termination date: 20100914 |