CN203939448U - A kind of large footpath NUP turns the inside and outside variable buckle joint of path EUB oil pipe - Google Patents
A kind of large footpath NUP turns the inside and outside variable buckle joint of path EUB oil pipe Download PDFInfo
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- CN203939448U CN203939448U CN201420282716.0U CN201420282716U CN203939448U CN 203939448 U CN203939448 U CN 203939448U CN 201420282716 U CN201420282716 U CN 201420282716U CN 203939448 U CN203939448 U CN 203939448U
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- outside
- screw thread
- thread
- oil pipe
- external screw
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Abstract
The utility model relates to a kind of large footpath NUP and turns the inside and outside variable buckle joint of path EUB oil pipe, adapter body is cylindrical tube, it is characterized in that: the axial side inside of described body is coaxially shaped with 2-7/8 " EU thickening box internal thread; this 2-7/8 " EU thickening box internal thread per inch 8 buttons, the axial opposite side outer, coaxial of body is shaped with 3-1/2, and " NU does not thicken pin thread external screw thread, this 3-1/2 " NU does not thicken pin thread external screw thread per inch 10 buttons; Outside, body stage casing between external screw thread and internal thread is shaped with the outside transition conical surface, and the body stage casing inwall between external screw thread and internal thread is shaped with the inner transition conical surface.The utility model has carried out deformation design on the basis of the isometrical box cupling product of API5CT standard normal, has directly realized the inside and outside reducing transition of screw thread, has further been suitable for oil pipe and has connected the requirement that reducing is used.
Description
Technical field
The utility model belongs to oil pipe connector, and especially a kind of large footpath NUP turns the inside and outside variable buckle joint of path EUB oil pipe.
Background technology
At present, conventional oil pipe is all generally the oil pipe that adopts " API " technical standard to produce both at home and abroad, in reality exploitation is produced, actual production technique becomes increasingly complex for the requirement of vitta structure, and the oil pipe of different-diameter need to be installed at different job positions, therefore different model oil pipe need to be connected, sometimes often need a plurality of adapters just can reach connection technological requirement, to reach the requirement of production technology, connect comparatively complexity, and connection precision is difficult to ensure card.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, provides a kind of large footpath NUP simple in structure, that precision is high, bonding strength is high, safe and reliable to turn the inside and outside variable buckle joint of path EUB oil pipe.
The utility model solves its technical problem and takes following technical scheme to realize:
A kind of large footpath NUP turns the inside and outside variable buckle joint of path EUB oil pipe, adapter body is cylindrical tube, it is characterized in that: the axial side inside of described body is coaxially shaped with 2-7/8 " EU thickening box internal thread; this 2-7/8 " EU thickening box internal thread per inch 8 buttons, the axial opposite side outer, coaxial of body is shaped with 3-1/2, and " NU does not thicken pin thread external screw thread, this 3-1/2 " NU does not thicken pin thread external screw thread per inch 10 buttons; Outside, body stage casing between external screw thread and internal thread is shaped with the outside transition conical surface, and the body stage casing inwall between external screw thread and internal thread is shaped with the inner transition conical surface.
And the taper angle of the described outside transition conical surface is 30 °.
Advantage of the present utility model and good effect are:
1, two of this joint kinds of helicitic texture combined outside positions adopt conical surface transition, have avoided because of the impact of reduced outer diameter on product bonding strength.
2, two of this joint kinds of threaded interior binding sites adopt conical surface transition, have guaranteed each specification reach, have avoided again the flow damping phenomena causing because of internal diameter reduction.
3, the utility model has carried out deformation design on the basis of the isometrical box cupling product of API5CT standard normal, has directly realized the inside and outside reducing transition of screw thread, has further been suitable for oil pipe and has connected the requirement that reducing is used.
Accompanying drawing explanation
Fig. 1 is structural front view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of large footpath NUP turns the inside and outside variable buckle joint of path EUB oil pipe, adapter body is cylindrical tube 1, the axial side inside of this body is coaxially shaped with 2-7/8 " EU thickening box internal thread 5; this 2-7/8 ", and EU thickening box internal thread per inch 8 is detained, the axial opposite side outer, coaxial of body is shaped with 3-1/2, and " NU does not thicken pin thread external screw thread 4; this 3-1/2 " NU does not thicken pin thread external screw thread per inch 8 buttons, and thickening external screw thread can promote its bonding strength;
Making female body outer end diameter is greater than and is shaped with externally threaded body outer end diameter, outside, body stage casing between external screw thread and internal thread is shaped with the outside transition conical surface 3, the taper angle a of this outside transition conical surface is 30 °, and this outside transition conical surface has been avoided because of the impact of reduced outer diameter on product bonding strength;
In body between internal thread and the internal diameter of tube body of opposite side, be coaxially shaped with an annular lead-over groove 2, further improve the assembling fitness of joint and oil pipe, and leave withdrawing size for processing.
The present embodiment is not thickeied pin thread external screw thread by internal thread specification by 2-7/8 " the direct reducing of EU thickening box internal thread is to 3-1/2 " NU, effectively reduces by the cost of oil pipe reducing.Thread parameter described in the present embodiment is carried out API5B standard, keeps versatility and the interchangeability of product.
EU represents the oil pipe button-type of external upset (EU), and NU represents not have the oil pipe button-type of external upset (EU), and P represents pin thread, and B represents female mouthful; 3-1/2 " and 2-7/8 " all belongs to the thread parameter of API5B standard.
Although disclose for the purpose of illustration embodiment of the present utility model and accompanying drawing, but it will be appreciated by those skilled in the art that: within not departing from the spirit and scope of the utility model and claims, various replacements, variation and modification are all possible, therefore, scope of the present utility model is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (2)
1. a large footpath NUP turns the inside and outside variable buckle joint of path EUB oil pipe, adapter body is cylindrical tube, it is characterized in that: the axial side inside of described body is coaxially shaped with 2-7/8 " EU thickening box internal thread; this 2-7/8 " EU thickening box internal thread per inch 8 buttons, the axial opposite side outer, coaxial of body is shaped with 3-1/2, and " NU does not thicken pin thread external screw thread, this 3-1/2 " NU does not thicken pin thread external screw thread per inch 10 buttons; Outside, body stage casing between external screw thread and internal thread is shaped with the outside transition conical surface.
2. large footpath NUP according to claim 1 turns the inside and outside variable buckle joint of path EUB oil pipe, it is characterized in that: the taper angle of the described outside transition conical surface is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282716.0U CN203939448U (en) | 2014-05-28 | 2014-05-28 | A kind of large footpath NUP turns the inside and outside variable buckle joint of path EUB oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282716.0U CN203939448U (en) | 2014-05-28 | 2014-05-28 | A kind of large footpath NUP turns the inside and outside variable buckle joint of path EUB oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939448U true CN203939448U (en) | 2014-11-12 |
Family
ID=51858771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420282716.0U Expired - Fee Related CN203939448U (en) | 2014-05-28 | 2014-05-28 | A kind of large footpath NUP turns the inside and outside variable buckle joint of path EUB oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110236622A (en) * | 2018-03-09 | 2019-09-17 | 北京大学人民医院 | Artificial nerve catheter and preparation method thereof for the suture of different size bridge grafting nerves |
-
2014
- 2014-05-28 CN CN201420282716.0U patent/CN203939448U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110236622A (en) * | 2018-03-09 | 2019-09-17 | 北京大学人民医院 | Artificial nerve catheter and preparation method thereof for the suture of different size bridge grafting nerves |
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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: 20141112 Termination date: 20150528 |
|
| EXPY | Termination of patent right or utility model |