CN202012298U - Novel union - Google Patents
Novel union Download PDFInfo
- Publication number
- CN202012298U CN202012298U CN 201120116252 CN201120116252U CN202012298U CN 202012298 U CN202012298 U CN 202012298U CN 201120116252 CN201120116252 CN 201120116252 CN 201120116252 U CN201120116252 U CN 201120116252U CN 202012298 U CN202012298 U CN 202012298U
- Authority
- CN
- China
- Prior art keywords
- joint
- sealing
- convex joint
- shaped nut
- trapezoid shaped
- 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 - Lifetime
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Abstract
The utility model relates to a high-pressure pipe joints system for drilling and production in petroleum industry, which can be widely used for pipeline connection which has high pressure, and a large drift diameter, and requires frequent dismounting. The novel union includes a convex joint, a concave joint, and a trapezoid shaped nut. The convex joint and the concave joint are cooperated with each other in a trapezoid shaped nut, and an O-shaped sealing ring is provided at the cooperation position of the convex joint and the concave joint. The utility model is advantageous in that the requirement for installation and alignment is low, and fast installation and sealing without alignment is achieved. The sealing is reliable, and no leakage is generated. The trapezoid shaped nut is rotated forward to enclasp a center pipe, and fast connection and sealing is realized. The trapezoid shaped nut is rotated backward to relax the center pipe, and fast dismounting is realized. The adaptability is strong, and maintenance is simple.
Description
Technical field
The utility model relates to petroleum industry drilling high pressure pipe joint system, can be widely used in high pressure, big latus rectum, need the pipeline of often dismounting to connect.
Background technology
In petroleum industry drilling high pressure pipe joint system, the connected mode that the high pressure pipe joint system adopts extensively adopts welded fitting, and this kind welded fitting is in dismounting and re-assembly in the process very inconvenient.
Summary of the invention
The purpose of this utility model provides a kind of novel union of easy to operate, good connecting effect, and this device is installed centering and required lowly, and sealing is reliable, does not reveal.
For achieving the above object, the utility model is achieved through the following technical solutions:
Novel union comprises convex joint, female fitting, trapezoidal nut, and described convex joint matches in the inside of trapezoidal nut with female fitting, and convex joint and female fitting cooperation place are provided with O-ring seals.
The utility model has the advantages that: installation centering requires low, realizes misaligning Fast Installation and sealing.Sealing is reliable, does not reveal.Be rotated in the forward trapezoidal nut and promptly hold central tube tightly, realize connecting fast and sealing.The counter-rotating trapezoidal nut promptly loosens central tube, realizes fast quick-detach.Compliance is strong, easy maintenance.
Description of drawings
Fig. 1 is the structural representation of novel union female fitting;
Fig. 2 is the structural representation of novel union trapezoidal nut;
Fig. 3 is the structural representation of novel union convex joint;
Fig. 4 is the overall assembling drawing of novel union.
Among the figure: 1-female fitting 2-O shape sealing ring 3-trapezoidal nut 4-convex joint
The specific embodiment
See Fig. 1-Fig. 4, novel union comprises convex joint 4, female fitting 1, trapezoidal nut 3, and described convex joint 4 matches in the inside of trapezoidal nut 3 with female fitting 1, and convex joint 4 is provided with O-ring seals 2 with female fitting 1 cooperation place.Mounting method is: at first convex joint 4 and the trapezoidal nut 3 with novel union installs, the seamless steel pipe welding of convex joint 4 with corresponding size, again with the seamless steel pipe welding of female fitting 1 with corresponding size.Guarantee that female fitting 1 aligns with convex joint 4 center lines, screw trapezoidal nut 3, can trapezoidal nut be struck tightly, promptly finish the connection of high pressure pipe joint with hand hammer.
Claims (1)
1. novel union is characterized in that, comprises convex joint, female fitting, trapezoidal nut, and described convex joint matches in the inside of trapezoidal nut with female fitting, and convex joint and female fitting cooperation place are provided with O-ring seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120116252 CN202012298U (en) | 2011-04-19 | 2011-04-19 | Novel union |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120116252 CN202012298U (en) | 2011-04-19 | 2011-04-19 | Novel union |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202012298U true CN202012298U (en) | 2011-10-19 |
Family
ID=44782910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120116252 Expired - Lifetime CN202012298U (en) | 2011-04-19 | 2011-04-19 | Novel union |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202012298U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453731A (en) * | 2013-09-13 | 2015-03-25 | 中国石油天然气集团公司 | Quick connector and application method |
| CN109000067A (en) * | 2018-09-30 | 2018-12-14 | 四川宏华电气有限责任公司 | A kind of cantilever shortization union component and the building method of component sealing optimization |
| CN110952968A (en) * | 2019-12-30 | 2020-04-03 | 西南石油大学 | High fatigue life type superhigh pressure fracturing union connects |
| CN112412352A (en) * | 2021-01-16 | 2021-02-26 | 兰州众盛石油机械设备有限公司 | High-pressure union connection structure |
-
2011
- 2011-04-19 CN CN 201120116252 patent/CN202012298U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453731A (en) * | 2013-09-13 | 2015-03-25 | 中国石油天然气集团公司 | Quick connector and application method |
| CN109000067A (en) * | 2018-09-30 | 2018-12-14 | 四川宏华电气有限责任公司 | A kind of cantilever shortization union component and the building method of component sealing optimization |
| CN110952968A (en) * | 2019-12-30 | 2020-04-03 | 西南石油大学 | High fatigue life type superhigh pressure fracturing union connects |
| CN110952968B (en) * | 2019-12-30 | 2022-01-28 | 西南石油大学 | High fatigue life type superhigh pressure fracturing union connects |
| CN112412352A (en) * | 2021-01-16 | 2021-02-26 | 兰州众盛石油机械设备有限公司 | High-pressure union connection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |