CN201190553Y - Drip - Google Patents
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- Publication number
- CN201190553Y CN201190553Y CNU2008200895581U CN200820089558U CN201190553Y CN 201190553 Y CN201190553 Y CN 201190553Y CN U2008200895581 U CNU2008200895581 U CN U2008200895581U CN 200820089558 U CN200820089558 U CN 200820089558U CN 201190553 Y CN201190553 Y CN 201190553Y
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- draining
- wall
- pull bar
- oil
- 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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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses an oil drain device which relates to the oil machinery, particularly relates to a tool used for pump oil drainage for an oil pump. The oil drain device comprises a jacket (1), an upper joint (2), a lower joint (3), a sliding sleeve (4) and an oil drainage pull rod (5). The side wall of the lower part of the jacket (1) is provided with an oil drainage hole (6), the sliding sleeve (4) is a pipy body, the upper part and the lower part of the outer wall of the sliding sleeve (4) are both provided with sealing rings (7), the inner wall of the sliding sleeve (4) is provided with inside threads (8), the sliding sleeve (4) is arranged at the oil drainage hole (6) part in a pipe cavity of the jacket (1), both ends of the oil drainage pull rod (5) are respectively provided with inside connecting threads and outside connecting threads, the outer wall of the oil drainage pull rod (5) is provided with outside threads (9) which are matched with the inside threads (8) on the inner wall of the sliding sleeve (4), and the oil drainage pull rod (5) is arranged in the inner cavity of the sliding sleeve (4). The utility model has the advantages of simple structure, convenient operation, reliable work and repeated use.
Description
Technical field
The utility model relates to petroleum machinery, is specifically related to a kind of instrument that is used for draining on the oil well pump pump.
Background technology
At present the bleeder that uses in each oilfield operation process mostly is the spring-loaded pawl formula, and this product long-term and the friction of beam hanger box cupling when using make the spring-loaded pawl serious wear, and is subject to wax deposition and influences and have the insecure shortcoming of work.Be the caber formula in addition, influence falling speed after having the oil pipe inner wax, can't guarantee the shortcoming that bleeder is opened.Especially in the higher newly developed area of gassiness, be badly in need of a kind of novel bleeder of research and development, address the above problem from environmental protection and safe requirement.
The utility model content
The purpose of this utility model is: a kind of simple in structure, easy to operate, reliable operation, and reusable bleeder are provided.
Technical solution of the present utility model is: it comprises overcoat, top connection, lower contact, sliding sleeve and draining pull bar, the sidewall of described overcoat bottom is provided with the draining hole, sliding sleeve is a tubular body, the upper and lower of sliding sleeve outer wall is equipped with sealing ring, the sliding sleeve inwall is provided with internal thread, sliding sleeve places place, the intraluminal draining of overcoat hole, connecting thread and outer connecting thread in draining pull bar two ends are respectively equipped with, the outer wall of draining pull bar is provided with the external screw thread that matches with the internal thread of sliding sleeve inwall, and the draining pull bar places the inner chamber of sliding sleeve.
Technique effect of the present utility model is: it has simple in structure, easy to operate, reliable operation, and reusable advantage.
Description of drawings
Accompanying drawing is the utility model sectional structure schematic diagram.
The specific embodiment
As shown in drawings, it comprises overcoat 1, top connection 2, lower contact 3, sliding sleeve 4 and draining pull bar 5, top connection 2 and lower contact 3 are screwed onto the top and bottom of overcoat 1 respectively and seal by sealing ring, the sidewall of described overcoat 1 bottom is provided with draining hole 6, sliding sleeve 4 is a tubular body, the upper and lower of sliding sleeve 4 outer walls is equipped with sealing ring 7, sliding sleeve 4 inwalls are provided with internal thread 8, sliding sleeve 4 places 6 places, overcoat 1 intraluminal draining hole, connecting thread and outer connecting thread in draining pull bar 5 two ends are respectively equipped with, the outer wall of draining pull bar 5 is provided with the external screw thread 9 that matches with the internal thread 8 of sliding sleeve 4 inwalls, and draining pull bar 5 places the inner chamber of sliding sleeve 4.
The external screw thread 9 of the internal thread 8 of sliding sleeve 4 inwalls and draining pull bar 5 outer walls is trapezoidal thread.
The external screw thread 9 of draining pull bar 5 outer walls is located at draining pull bar 5 bottoms.
Sliding sleeve 4 external diameters are greater than the internal diameter of top connection 2 and lower contact 3.
Sliding sleeve 4 outer wall tops also are provided with unidirectional jump ring 10, and the inwall of described overcoat 1 is provided with the draw-in groove 11 that matches with unidirectional jump ring 10, and draw-in groove 11 is located on the draining hole 6.
The utility model is connected in series with oil pipe in use, draining pull bar 5 is connected in series with the sucker rod of oil pumper, the below that draining pull bar 5 is screwed into sliding sleeve 4 operation of can pumping normally, on when repairing, on carry sucker rod, drive on the sliding sleeves 4 by draining pull bar 5 and move, open draining hole 6, can realize draining, draining pull bar 5 is screwed out sliding sleeves 4, can extract sucker rod out and repair operation on carrying out.
Claims (5)
1, bleeder, it comprises overcoat (1), top connection (2), lower contact (3), it is characterized in that, it also comprises sliding sleeve (4) and draining pull bar (5), the sidewall of described overcoat (1) bottom is provided with draining hole (6), sliding sleeve (4) is a tubular body, the upper and lower of sliding sleeve (4) outer wall is equipped with sealing ring (7), sliding sleeve (4) inwall is provided with internal thread (8), sliding sleeve (4) places overcoat (1) intraluminal draining hole (6) to locate, connecting thread and outer connecting thread in draining pull bar (5) two ends are respectively equipped with, the outer wall of draining pull bar (5) is provided with the external screw thread (9) that matches with the internal thread (8) of sliding sleeve (4) inwall, and draining pull bar (5) places the inner chamber of sliding sleeve (4).
2, bleeder as claimed in claim 1 is characterized in that, the external screw thread (9) of the internal thread (8) of described sliding sleeve (4) inwall and draining pull bar (5) outer wall is trapezoidal thread.
3, bleeder as claimed in claim 1 or 2 is characterized in that, the external screw thread (9) of described draining pull bar (5) outer wall is located at draining pull bar (5) bottom.
4, bleeder as claimed in claim 1 is characterized in that, described sliding sleeve (4) external diameter is greater than the internal diameter of top connection (2) and lower contact (3).
5, bleeder as claimed in claim 1, it is characterized in that, described sliding sleeve (4) outer wall top also is provided with unidirectional jump ring (10), and the inwall of described overcoat (1) is provided with the draw-in groove (11) that matches with unidirectional jump ring (10), and draw-in groove (11) is located on the draining hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200895581U CN201190553Y (en) | 2008-03-20 | 2008-03-20 | Drip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200895581U CN201190553Y (en) | 2008-03-20 | 2008-03-20 | Drip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201190553Y true CN201190553Y (en) | 2009-02-04 |
Family
ID=40334713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200895581U Expired - Fee Related CN201190553Y (en) | 2008-03-20 | 2008-03-20 | Drip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201190553Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296939A (en) * | 2011-07-26 | 2011-12-28 | 中国石油天然气股份有限公司 | Automatic pressure balancing expansion and fishing integrated expansion pipe tool and use method thereof |
| CN104790908A (en) * | 2015-04-29 | 2015-07-22 | 王俊德 | Oil drain device |
-
2008
- 2008-03-20 CN CNU2008200895581U patent/CN201190553Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296939A (en) * | 2011-07-26 | 2011-12-28 | 中国石油天然气股份有限公司 | Automatic pressure balancing expansion and fishing integrated expansion pipe tool and use method thereof |
| CN102296939B (en) * | 2011-07-26 | 2014-02-19 | 中国石油天然气股份有限公司 | Automatic pressure balancing expansion and fishing integrated expansion pipe tool and use method thereof |
| CN104790908A (en) * | 2015-04-29 | 2015-07-22 | 王俊德 | Oil drain device |
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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: 20090204 Termination date: 20100320 |