CN204920880U - Displacement formula packing box - Google Patents
Displacement formula packing box Download PDFInfo
- Publication number
- CN204920880U CN204920880U CN201520610070.9U CN201520610070U CN204920880U CN 204920880 U CN204920880 U CN 204920880U CN 201520610070 U CN201520610070 U CN 201520610070U CN 204920880 U CN204920880 U CN 204920880U
- Authority
- CN
- China
- Prior art keywords
- displacement
- glan
- packing box
- cover
- displacement formula
- 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 discloses a displacement formula packing box, including the displacement formula chamber cover that is connected and the axis is unanimous, fixed cover, displacement formula chamber cover can be at the fixed axial displacement that sheathes in. Fixed cover top processing has fixed glan, displacement formula chamber cover top export inboard sets up the removal glan, is provided with sealed packing between displacement formula chamber cover inside and fixed glan and removal glan. It presses the cap to set up the packing box above displacement formula chamber cover top exports the outside and removes the glan. The welding of fixed cover lower extreme is on the rubber gate. The screw thread is seted up to fixed cover outer wall, and the internal thread is seted up to displacement formula chamber cover inner wall, and both carry out axial relative movement through the screw thread rotation. The utility model discloses technological structure is simple, and field usage safety is convenient, because the device is a displacement formula cavity, can effectively prolong the life of packing.
Description
Technical field
The utility model relates to packing box; Specifically displacement-type packing box.
Background technology
At present, known producing well majority is rod-pumped well, and wellhead packing box is that a kind of sealed packing by splendid attire in box ensures polished rod well head not oil spout, oil tight sealing device when moving wherein.Usually when all changing packing in time after sealed packing wearing and tearing in packing box, need during spot replace packing to take out one by one with flat mouth screwdriver, because existing packing box chamber is fixing, the packing of cavity bottom when getting packing is caused not easily to take out, add the work difficulty of oil recovery work, rate when reducing the oil recovery of oil well, causes fastening Distance Shortened because the height of current packing box top Glan is limit simultaneously, reduces the application life of packing.
Through retrieval, learn that the utility model is for solve the problems of the technologies described above and the technical scheme that provides was not disclosed.
Utility model content
The purpose of this utility model is to provide displacement-type packing box, and process structure is simple, and onsite application safe and convenient, because this device is displacement-type chamber, effectively can extend the application life of packing.
In order to reach above-mentioned purpose, the utility model have employed following technical scheme, displacement-type packing box, and comprise and being connected and consistent displacement-type chamber cover, the fixed cover of axis, described displacement-type chamber cover can move axially on fixed cover.
Described fixed cover top is processed with fixing Glan, and outlet inner side, cover top, described displacement-type chamber arranges mobile Glan, overlaps inner and be provided with sealed packing between fixing Glan and mobile Glan in displacement-type chamber.
Cover top, described displacement-type chamber exports outside and arranges packing box pressing cap above mobile Glan.
Described fixed cover lower end is welded on rubber gate.
Described fixed cover outer wall offers screw thread, and displacement-type chamber cover inwall offers internal thread, and both carry out axial relative movement by screw thread rotation.
Compared to prior art, the utility model has following beneficial effect:
Design of part in original technology is the top of rubber gate is fixing packing box, is packing box is fixed on the top of rubber gate remove, is designed to present displacement-type packing box in the patented technology of displacement-type packing box.
Old packing ejects by the displacement of packing box chamber by fast, do not need to use screwdriver to take out one by one, due to exposing of chamber, also achieve and add new packing fast, simultaneously because the displacement of packing box chamber extends the application life of packing, because original packing is fastening is that the mobile Glan compressing packing top by screwing packing box pressing cap realizes, when the Glan in packing box is fastened to concordant with packing box chamber port, packing just loses sealing.And displacement-type packing box fastening is the movement by chamber, chamber can be fastened to that to fix Glan with bottom concordant, and achieving packing utilizes to greatest extent, thus extends the application life of packing.
Accompanying drawing explanation
Fig. 1 is the structural representation of displacement-type packing box of the present utility model.
In figure: 1, packing box pressing cap; 2, mobile Glan; 3, displacement-type chamber cover; 4, fixing Glan; 5, fixed cover; 6, sealed packing; 7, rubber gate.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the utility model.
According to Fig. 1, displacement-type packing box, forms primarily of packing box pressing cap 1, mobile Glan 2, displacement-type chamber cover 3, fixing Glan 4, fixed cover 5.Its structure is removed by the fixing packing box chamber on rubber gate 7 top, rubber gate welds a length of tape and has externally threaded fixed cover 5, the top of fixed cover 5 is processed with fixing Glan 4, displacement-type chamber cover 3 is threaded connection with fixed cover 5, when displacement-type chamber cover 3 is moved downward by fixed cover 5 screw thread, can the sealed packing 6 in chamber is whole make, achieve the process of fast fetching packing, when needs add packing, displacement-type chamber cover 3 is moved up by fixed cover 5 screw thread, because chamber increases gradually, achieve the process adding packing fast.
Displacement-type chamber cover and fixed cover produce the mode moved to axial, and no matter can also be similar shock absorber structure, be fluid pressure type, or return spring structure, all in the utility model protection domain.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (5)
1. displacement-type packing box, is characterized in that, comprise and being connected and consistent displacement-type chamber cover, the fixed cover of axis, described displacement-type chamber cover can move axially on fixed cover.
2. displacement-type packing box according to claim 1, it is characterized in that, described fixed cover top is processed with fixing Glan, and outlet inner side, cover top, described displacement-type chamber arranges mobile Glan, overlaps inner and be provided with sealed packing between fixing Glan and mobile Glan in displacement-type chamber.
3. displacement-type packing box according to claim 2, is characterized in that, cover top, described displacement-type chamber exports outside and arranges packing box pressing cap above mobile Glan.
4. displacement-type packing box according to claim 1, is characterized in that, described fixed cover lower end is welded on rubber gate.
5. displacement-type packing box according to claim 1, is characterized in that, described fixed cover outer wall offers screw thread, and displacement-type chamber cover inwall offers internal thread, and both carry out axial relative movement by screw thread rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610070.9U CN204920880U (en) | 2015-08-13 | 2015-08-13 | Displacement formula packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610070.9U CN204920880U (en) | 2015-08-13 | 2015-08-13 | Displacement formula packing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204920880U true CN204920880U (en) | 2015-12-30 |
Family
ID=54970017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520610070.9U Expired - Fee Related CN204920880U (en) | 2015-08-13 | 2015-08-13 | Displacement formula packing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204920880U (en) |
-
2015
- 2015-08-13 CN CN201520610070.9U patent/CN204920880U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |