CN106437554A - Bidirectional threaded petroleum pipeline connecting hoop - Google Patents
Bidirectional threaded petroleum pipeline connecting hoop Download PDFInfo
- Publication number
- CN106437554A CN106437554A CN201611064597.1A CN201611064597A CN106437554A CN 106437554 A CN106437554 A CN 106437554A CN 201611064597 A CN201611064597 A CN 201611064597A CN 106437554 A CN106437554 A CN 106437554A
- Authority
- CN
- China
- Prior art keywords
- thread
- petroleum pipeline
- connecting hoop
- internal thread
- box cupling
- 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.)
- Pending
Links
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 16
- 239000003208 petroleum Substances 0.000 title claims abstract description 14
- 208000031481 Pathologic Constriction Diseases 0.000 claims description 2
- 210000001215 vagina Anatomy 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract 2
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
- E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention discloses a bidirectional threaded petroleum pipeline connecting hoop which comprises a connecting hoop body, wherein an internal thread is formed in an inner wall of the connecting hoop body, and penetrates through the whole connecting hoop body in the length direction; the internal thread has different screwing directions; the screwing direction from one end of the internal thread to the intermediate section of the internal thread is right-handed; the screwing direction from the other end of the internal thread to the intermediate section of the internal thread is left-handed. The bidirectional threaded petroleum pipeline connecting hoop provided by the invention adopts the bidirectional thread, has strong screw thread recognition property, cannot damage the screw thread when being laid down, has the thread sealing and extrusion forces in the same direction, changes bidirectional extrusion force of round threads, is free from false threading and thread gluing, prolongs the service life, can be lifted directly through a lifting groove, and reduces the labor intensity of workers when lifting oil pipes to operate.
Description
Technical field
The present invention relates to petroleum pipeline technical field, more particularly, to a kind of bidirectional helical petroleum pipeline box cupling.
Background technology
Tubing coupling is in oil development, the mechanical part that petroleum oil connects, and is mainly used in the connection of oil pipe.Oil pipe connects
Hoop plays connected pipes, bears tension, lifts oil pipe, the effect such as sealing oil pipe thread.Tubing coupling is oil in oil development
The mechanical part that oil pipe connects, is mainly used in the connection of oil pipe.Connected pipes are played in tubing coupling, bear tension, lift oil pipe,
The effects such as sealing oil pipe thread.
Content of the invention
In order to overcome the problem of existing technical deficiency, the present invention provides a kind of bidirectional helical petroleum pipeline box cupling.
The technical scheme is that and be achieved in that：A kind of bidirectional helical petroleum pipeline box cupling, including box cupling body, institute
State box cupling inner body wall setting female thread, the length of described female thread runs through the length of whole box cupling body, described female thread
Screw direction difference, the direction that screws of described female thread one end to interlude is dextrorotation, and the described female thread other end is to interlude
Screw direction be left-handed.
Preferably, described screw thread specification is designed as per inch 8 tooth, pitch 3 .175 mm.
Preferably, the high 2-3mm of the teeth of the thread of described female thread.
Present invention has the advantages that：The present invention adopts bidirectional helical, and screw thread recognizes button property by force, and decentralization will not damage screw thread, spiral shell
Stricture of vagina sealed extruded stress be a direction, change round thread Bidirectional-squeezing stress, will not thread making, will not thread gluing, extend and make
With the life-span, upgrading slot makes tubing coupling can directly be lifted, the labor intensity of workman when alleviating lifting oil pipe operation.
Brief description
Fig. 1 is bidirectional helical petroleum pipeline box cupling structural representation of the present invention；
In figure, 1 box cupling body, 2 female threads.
Specific embodiment
The present invention is described further in conjunction with the accompanying drawings and embodiments.
As shown in figure 1, a kind of bidirectional helical petroleum pipeline box cupling, including box cupling body 1, described box cupling body 1 inwall sets
Put female thread 2, the length of described female thread 2 runs through the length of whole box cupling body 1, described female thread 2 to screw direction different,
Described female thread 2 one end is dextrorotation to the direction that screws of interlude, and described female thread 2 other end to the direction that screws of interlude is
Left-handed.
Heretofore described screw thread specification is designed as per inch 8 tooth, pitch 3 .175 mm, the thread of described female thread
The high 2-3mm of teeth.
The present invention adopts bidirectional helical, and screw thread recognizes button property by force, and decentralization will not damage screw thread, and thread seal extruding stress is one
Individual direction, changes round thread Bidirectional-squeezing stress, will not thread making, will not thread gluing, extend service life, upgrading slot makes oil pipe
Box cupling can directly be lifted, the labor intensity of workman when alleviating lifting oil pipe operation.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that still can make
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, description is considered as illustrative rather than limit
Property processed.
Claims (3)
1., it is characterised in that including box cupling body, described box cupling inner body wall setting is interior for a kind of bidirectional helical petroleum pipeline box cupling
Screw thread, the length of described female thread runs through the length of whole box cupling body, different, the described interior spiral shell that screws direction of described female thread
Stricture of vagina one end is dextrorotation to the direction that screws of interlude, and the direction that screws of the described female thread other end to interlude is left-handed.
2. bidirectional helical petroleum pipeline box cupling according to claim 1 is it is characterised in that described screw thread specification is designed as often
Inch 8 teeth, pitch 3 .175 mm.
3. bidirectional helical petroleum pipeline box cupling according to claim 1 is it is characterised in that the tooth of the thread of described female thread
The high 2-3mm of tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611064597.1A CN106437554A (en) | 2016-11-28 | 2016-11-28 | Bidirectional threaded petroleum pipeline connecting hoop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611064597.1A CN106437554A (en) | 2016-11-28 | 2016-11-28 | Bidirectional threaded petroleum pipeline connecting hoop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106437554A true CN106437554A (en) | 2017-02-22 |
Family
ID=58218960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611064597.1A Pending CN106437554A (en) | 2016-11-28 | 2016-11-28 | Bidirectional threaded petroleum pipeline connecting hoop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106437554A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653123A (en) * | 2015-02-05 | 2015-05-27 | 江苏常宝钢管股份有限公司 | Coupling-free direct connecting spinning joint oil pipe |
| CN204457464U (en) * | 2015-01-22 | 2015-07-08 | 李萌 | Combined type oil drilling well drilling bar |
| CN205297370U (en) * | 2016-01-19 | 2016-06-08 | 景自强 | Novel tubing coupling |
| CN206205819U (en) * | 2016-11-28 | 2017-05-31 | 无锡金顶石油管材配件制造有限公司 | A kind of bidirectional helical petroleum pipeline box cupling |
-
2016
- 2016-11-28 CN CN201611064597.1A patent/CN106437554A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204457464U (en) * | 2015-01-22 | 2015-07-08 | 李萌 | Combined type oil drilling well drilling bar |
| CN104653123A (en) * | 2015-02-05 | 2015-05-27 | 江苏常宝钢管股份有限公司 | Coupling-free direct connecting spinning joint oil pipe |
| CN205297370U (en) * | 2016-01-19 | 2016-06-08 | 景自强 | Novel tubing coupling |
| CN206205819U (en) * | 2016-11-28 | 2017-05-31 | 无锡金顶石油管材配件制造有限公司 | A kind of bidirectional helical petroleum pipeline box cupling |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |