CN100347400C - Open eccentric packing box - Google Patents
Open eccentric packing box Download PDFInfo
- Publication number
- CN100347400C CN100347400C CNB2003101210954A CN200310121095A CN100347400C CN 100347400 C CN100347400 C CN 100347400C CN B2003101210954 A CNB2003101210954 A CN B2003101210954A CN 200310121095 A CN200310121095 A CN 200310121095A CN 100347400 C CN100347400 C CN 100347400C
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- packing
- packing box
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- packing cavity
- coupled
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Abstract
The present invention relates to a packing box of a Christmas tree of a rod-pumped well. A packing cavity of the packing box can be open. When a packing is changed, the packing cavity is opened, and then the old packing (15) is exposed. Consequently, adding or changing the packing is especially convenient and quick. The present invention solves the problem of difficult adding or changing the packing of the common packing box.
Description
Technical field
The present invention relates to a kind of rod-pumped well production tree packing box.
Background technology
At present no matter be common packing box, or eccentric packing box, they all be the O type packing that has cut on one side a slit one by one be enclosed within on the polished rod another one be pressed in the packing chamber, in the time of changing packing, also in the packing chamber, draw out old packing singly.The common defects that adds packing like this is: time-consuming, effort, it is pretty troublesome to work.
Summary of the invention
The objective of the invention is to provide a kind of result simple, cost is low, add packing save time, laborsaving, the packing box easily of working.
The object of the present invention is achieved like this: packing box is divided into upper, middle and lower three parts.The bottom is the basis of packing box: below the part in a tubular form, tube-like piece screw thread is arranged, can go up on production tree.Above the tube-like piece, the structure with the packing cavity coupling at middle part is arranged.The packing cavity at middle part: be to break from the centre to be two tiles, these two tiles have a cover hinged joint to connect, be butterfly-shaped when unlimited, when closing in a tubular form, there is snap close in the packing chamber of closing: pressurized can oneself not open wide in the packing chamber, locked back, packing just is installed at the inside, has above the packing cavity and the spinning spare on the top structure of coupling mutually.Spinning spare: be interior housing type, the overcoat bottom surface can with the packing cavity coupling structure of coupling mutually, mesopore have the spiral shell button with in the external screw that puts cooperate the hole that interior cover center has polished rod to pass.Three parts described above interconnect and cooperatively interact, constituted a whole packing box that the packing cavity can open wide, because the packing cavity that opens wide makes outside packing is exposed to fully, thus add change packing make things convenient for especially, save time, laborsaving, so just realized the purpose that this case proposed.
The present invention is because just improve the packing cavity of common packing box, mainly is conceived to solve add the problem of changing the packing difficulty, and be consistent as for the packing_seal effect with common packing box, so the purpose of this case proposition is not difficult to realize.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structure chart of the eccentric packing box of open type of the present invention.
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
This packing box is divided into (2) bottom, middle part, top (1) (3) three parts.Bottom (3) is the basis of packing box: following have a screw thread (4), can go up on production tree, has above and middle part (2) the even part (5) of coupling mutually, the hole that the center has polished rod (14) to pass.Middle part (2) is the packing cavity: be that a joint tubular body breaks from the centre and is two tiles, this two tile has a cover hinged joint (6) to connect, be butterfly-shaped when unlimited, inside packing just is installed in a tubular form when closing, there is a lock house (8) snap close (9) to be arranged on another on one on this two tile, snap close (9) can entangle lock house (8) the packing cavity of the sealed formation tubulose of two tiles, have below the packing cavity and even part (5) component of coupling (7) mutually, the component (10) with top (1) coupling is arranged above the packing cavity.Top (1) is a spinning spare: be interior overcoat (12) (11), overcoat (11) mesopore has spiral shell to buckle with external screw on the interior cover (12) to cooperate, in the hole that has polished rod (14) to pass, cover (12) center, overcoat (11) bottom surface has and the packing cavity even part (13) of coupling mutually.
When adding when changing packing: snap close (9) and lock house (8) separated take off mouth, two tiles of packing cavity are being separated, the packing cavity is unlimited gesture, each coupling part breaks away from mutually, outside old packing (15) is exposed to, can takes away old packing easily and put new packing, again two tiles of packing cavity are closed up, each coupling part is engaged, and snap close (9) is enclosed within two tiles that lock house (8) is gone up locked packing cavity, has just finished once to add the process of changing packing.
Claims (2)
1. rod-pumped well production tree packing box, this packing box is contained on the production tree, it is characterized in that: packing box is divided into (2) bottom, middle part, top (1) (3) three parts, bottom (3) is the basis of packing box: following have a screw thread (4), can go up on production tree, the even part (5) that is coupled with middle part (2) is arranged above, the hole that the center has polished rod (14) to pass, middle part (2) is the packing cavity: be that a joint tubular body breaks from the centre and is two tiles, this two tile has a cover hinged joint (6) to connect, be butterfly-shaped when unlimited, when closing in a tubular form: packing just be installed at the inside, the component (7) that is coupled with even part (5) is arranged below the packing cavity, the component (10) that is coupled with top (1) is arranged above the packing cavity, top (1) is a spinning spare: be interior overcoat (12) (11), overcoat (11) mesopore has spiral shell to buckle with external screw on the interior cover (12) to cooperate, the hole that interior cover (12) center has polished rod (14) to pass, there is the even part (13) that is coupled with the packing cavity overcoat (11) bottom surface
2. rod-pumped well production tree packing box according to claim 1, it is characterized in that: have a lock house (8) snap close (9) to be arranged on another on one on packing cavity two tiles, snap close (9) can entangle lock house (8) the packing cavity of two sealed formation tubuloses of tile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101210954A CN100347400C (en) | 2003-12-31 | 2003-12-31 | Open eccentric packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101210954A CN100347400C (en) | 2003-12-31 | 2003-12-31 | Open eccentric packing box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1635261A CN1635261A (en) | 2005-07-06 |
| CN100347400C true CN100347400C (en) | 2007-11-07 |
Family
ID=34844050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101210954A Expired - Fee Related CN100347400C (en) | 2003-12-31 | 2003-12-31 | Open eccentric packing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100347400C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056443U (en) * | 1989-09-04 | 1990-04-25 | 胡晶 | Double steering automatic positioning flexible graphite stuffing box |
| CN2228972Y (en) * | 1995-03-01 | 1996-06-12 | 周伟汉 | Stuffing box for oil field well head |
| CN1191264A (en) * | 1998-04-06 | 1998-08-26 | 甄立新 | Stuffing box with air bag |
| CN2299936Y (en) * | 1997-08-26 | 1998-12-09 | 张景库 | Opened sucker polish rod packing box |
-
2003
- 2003-12-31 CN CNB2003101210954A patent/CN100347400C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056443U (en) * | 1989-09-04 | 1990-04-25 | 胡晶 | Double steering automatic positioning flexible graphite stuffing box |
| CN2228972Y (en) * | 1995-03-01 | 1996-06-12 | 周伟汉 | Stuffing box for oil field well head |
| CN2299936Y (en) * | 1997-08-26 | 1998-12-09 | 张景库 | Opened sucker polish rod packing box |
| CN1191264A (en) * | 1998-04-06 | 1998-08-26 | 甄立新 | Stuffing box with air bag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1635261A (en) | 2005-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20071107 Termination date: 20100201 |