CN2858927Y - Sliding sucker rod safety joint - Google Patents
Sliding sucker rod safety joint Download PDFInfo
- Publication number
- CN2858927Y CN2858927Y CN 200520093016 CN200520093016U CN2858927Y CN 2858927 Y CN2858927 Y CN 2858927Y CN 200520093016 CN200520093016 CN 200520093016 CN 200520093016 U CN200520093016 U CN 200520093016U CN 2858927 Y CN2858927 Y CN 2858927Y
- Authority
- CN
- China
- Prior art keywords
- sucker rod
- joint
- lower contact
- diameter
- sucker
- 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 relates to a sliding sucker rod safety joint pertaining to underground sucker rod coupling device consists of an upper joint and a lower joint. The upper joint is a solid-core cylinder with different diameters and the central part of which is provided with a box. Two semicircle slide way grooves are disposed on the small-end excircle of the upper drilling hole. One end of the lower joint is provided with a semicircle sliding key and the small-end of the lower joint is provided with a drilling hole, which is a screw thread with a box under the sucker rod. If stuck pump occurs, the two parts of the safety joint can be separated by rotation of the sucker rod, thereby achieves the separation of upper and lower sucker rods, pump and rod, and among rods. The utility model is capable of protecting the sucker rods when lifting the pump, enhancing operation efficiency and reducing labor intensity and can be widely used in connection among sucker rods and a plurality of metal rods.
Description
Technical field:
The utility model relates to the safety joint of a kind of slideway type sucker rod, belongs to down-hole sucker rod hookup class.
Background technology:
Oil-field oil pumper work the time to rely on sucker rod above the oil well pump in well on; following ceaselessly working in reciprocating mode; could be with the down-hole Crude Oil Transportation to ground; but aborning because sand production; the reason of tubing wax; cause piston sand card in the oil-well pump of oil well through regular meeting; make and when the inspection pump, can not in time sucker rod and piston be tripped out the ground maintenance by operation; at present; use the back-off method that sucker rod one section one section ground in down-hole is proposed in well; drawback is outstanding; fracture accident in the sucker rod way takes place through regular meeting; but also can in the process of removing, increase labour intensity, prolong the cycle of operation well workover.
The utility model content:
The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of slideway type sucker rod safety joint that provides, this joint can rotate docking mode by butt joint and realize pump and bar, bar separates with bar, can be quick, laborsaving, easily sucker rod is tripped out in oil well, then, can pump be tripped out ground by normal inspection pump operation.
Implementation of the present utility model is such.
For achieving the above object, the utility model is made up of top connection, lower contact.Described top connection is the real core cylinder of a different-diameter, its center has one to have upward holing of box, on the periphery of cylinder end diameter one end, be furnished with twice " L " shape semicircle slide groove, described top connection right-hand member has the last screw thread of a band pin thread, the semicircle feather key of symmetry is each other arranged on the inner hole surface of described lower contact outside diameter one end, this feather key can be positioned at above-mentioned slide groove after upper and lower joint butt joint, at lower contact end diameter one end one boring is arranged, this boring left end is one to have screw thread under the sucker rod of box.
Described slideway flute length is 35～40 millimeters; 5～6 millimeters of groove widths, the feather key diameter is slightly less than the diameter of slide groove, and a pin is arranged between top connection and lower contact.
The utility model working method:
During use, the sucker rod that will have pin thread inserts the top connection left end, the sucker rod that has box inserts the lower contact right-hand member, to go up lower contact then is docking together, right rotation joint then, this moment, feather key slided along slide groove, and end on the top that is positioned at " L " shape slide groove up to feather key, on this moment, lower contact is fixed, to go up lower contact with pin then fixes dead, can prevent that like this sucker rod from causing safety joint to unclamp in down-hole rotation, in well, propose sucker rod more at last, when extracting, only be permitted the dextrorotation rotary sucker rod on ground, like this in the safety joint, following part can be separated, thereby realize being pump and bar, bar and bar separate targets, convenient especially.
The utility model compared with prior art has distinguishing feature.
The utility model is owing to adopted top connection and the structure of lower contact composition, together connected to each other by the slideway key above the slide groove between last lower contact, when therefore using, only need two sucker rods are connected a G.I.H with safety joint, when down-hole holddown accident takes place, when having needed the pump situation, only need clockwise rotate sucker rod on ground, can make, following safety joint two parts from, and then make pump and bar, bar separates with bar, does not hinder sucker rod when making things convenient for again rapid and construction, also the bar accident that falls in the well can not occur, also can improve the inspection pump speed, help oil well production increasing.
Description of drawings:
Accompanying drawing is the utility model structural representation.
Among the figure by 1, top connection, 2, screw thread on the sucker rod, 3, lower contact, 4, slide groove, 5, feather key, 6, screw thread under the sucker rod, 7, boring down, 8, go up boring, 9, jackscrew forms.
The specific embodiment:
The utility model is provided by following examples.
Below in conjunction with accompanying drawing the utility model is described further.
Top connection 1 adopts 35 chrome-molybdenum steel to make among the figure, and profile is the convex shape cylindrical solid, and the center is drilled with boring 8, and screw thread 2 on the sucker rod of being with box is arranged in the hole, is used for fixing sucker rod.On the cylindrical of cylinder end diameter one end, be furnished with twice " L " shape semicircle slide groove 4, this groove is a semicircle shape, the circular groove light requirement is sliding smooth during manufacturing, should guarantee that feather key can move freely along interior circular groove is upper and lower.
The semicircle feather key that two symmetries are arranged on the inner hole surface of outside diameter one end of lower contact 3, this key will can be positioned at slide groove during assembling after last lower contact butt joint.Feather key 5 is that a semicircle shape and lower contact 3 are one, its diameter should be less than the diameter of slide groove 4, jackscrew 9 is through in the aperture of top connection 1 and lower contact 3, and the effect of this jackscrew 9 is to be used for fixing lower contact, prevents that lower contact is loosening to be separated because of the sucker rod rotation causes.
The utility model is not limited to above-mentioned embodiment; no matter on its shape or structure, do any variation; the key of lower contact and groove docking mode and employing rotating manner in every utilization; make safety joint two parts connect the object separated structures and all think a kind of modification of the present utility model, all should think within the utility model protection domain.
Claims (2)
1, the safety joint of a kind of slideway type sucker rod, comprise by top connection (1), lower contact (3) is formed, it is characterized in that: described top connection (1) is the real core cylinder of a different-diameter, there are go up hole (8) that have box its center, on the periphery of cylinder end diameter one end, be furnished with twice " L " shape semicircle slide grooves (4), on the inner hole surface of outside diameter one end of described lower contact (3) two semicircle feather keys (5) are arranged, this feather key is positioned at slide groove after last lower contact butt joint, at lower contact (3) end diameter one end boring (7) is arranged, this boring left end is a screw thread (6) under the sucker rod that has a box.
2, a kind of slideway type sucker rod according to claim 1 safety joint, it is characterized in that: the long 35-40 millimeter of slide groove (4), groove width is the 5-6 millimeter, and the diameter of described feather key (5) has a pin (9) less than slide groove (4) diameter between top connection (1) and lower contact (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520093016 CN2858927Y (en) | 2005-10-24 | 2005-10-24 | Sliding sucker rod safety joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520093016 CN2858927Y (en) | 2005-10-24 | 2005-10-24 | Sliding sucker rod safety joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2858927Y true CN2858927Y (en) | 2007-01-17 |
Family
ID=37611787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520093016 Expired - Fee Related CN2858927Y (en) | 2005-10-24 | 2005-10-24 | Sliding sucker rod safety joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2858927Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929534A (en) * | 2015-06-19 | 2015-09-23 | 安东石油技术（集团）有限公司 | Safety connector for oil field working |
| CN105370221A (en) * | 2015-11-26 | 2016-03-02 | 中国地质大学（武汉） | Drill pipe quick-connecting mechanism |
-
2005
- 2005-10-24 CN CN 200520093016 patent/CN2858927Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929534A (en) * | 2015-06-19 | 2015-09-23 | 安东石油技术（集团）有限公司 | Safety connector for oil field working |
| CN104929534B (en) * | 2015-06-19 | 2017-01-18 | 安东石油技术（集团）有限公司 | Safety connector for oil field working |
| CN105370221A (en) * | 2015-11-26 | 2016-03-02 | 中国地质大学（武汉） | Drill pipe quick-connecting mechanism |
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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: 20070117 Termination date: 20091124 |