CN203297790U - Expansion ring type pipe end connecting piece - Google Patents
Expansion ring type pipe end connecting piece Download PDFInfo
- Publication number
- CN203297790U CN203297790U CN2013203149536U CN201320314953U CN203297790U CN 203297790 U CN203297790 U CN 203297790U CN 2013203149536 U CN2013203149536 U CN 2013203149536U CN 201320314953 U CN201320314953 U CN 201320314953U CN 203297790 U CN203297790 U CN 203297790U
- Authority
- CN
- China
- Prior art keywords
- pipe end
- transition conical
- expansion
- type pipe
- ring type
- 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
Links
- 230000007704 transition Effects 0.000 claims abstract description 20
- 239000003208 petroleum Substances 0.000 abstract description 12
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
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Abstract
The utility model discloses an expansion ring type pipe end connecting piece which comprises a body, wherein the body is tubular, an annular protrusion is arranged in the middle of the body, oblique transition conical surfaces are arranged at the two ends of the protrusion, external threads are arranged on the outer surface, outside the transition conical surfaces, of the body, a girdling groove is formed in each transition conical surface, an expansion ring is installed in each girdling groove, the transition conical surfaces are friction surfaces, and the center of the protrusion of the body is of an integrally formed hex nut structure. The expansion ring type pipe end connecting piece is connected and matched with connectors of petroleum pipelines through the external threads, sealed with the pipe walls of the petroleum pipelines in a pressing mode through the expansion rings, and sealed with the connecting ends of the petroleum pipelines in a friction mode through the transition conical surfaces which are the friction surfaces, and the oxidation rate of the expansion rings can be reduced.
Description
Technical field
The utility model relates to a kind of expansion ring type pipe end link, belongs to the petroleum pipeline technical field.
Background technique
Sealing problem after the petroleum pipeline docking is a very important problem, and prior art often uses the seal approach such as seal ring, seal ring, expansion structure to seal, and its structure is comparatively complicated, and sealing descends along with the passing of service time.So need the expansion ring type pipe end link of a kind of simple in structure, good airproof performance of design.
The model utility content
For the technical problem of the pipe end constructions seal structure complex that solves petroleum pipeline, solve simultaneously the poor problem of endurance of seal approach, the utility model provides a kind of expansion ring type pipe end link.
The purpose of this utility model is carried out specific implementation by the following technical programs:
A kind of expansion ring type pipe end link, comprise body, body is tubular structure, the middle part of body has the projection of ring-type, the two ends of projection have the transition conical surface of inclination, be provided with outside thread on this external surface in the transition conical surface outside, be provided with the ring cutting groove on each described transition conical surface, in each ring cutting groove, expansion loop is installed, the described transition conical surface is friction surface, the center of the projection of described body has integrated hexagon nut structure, described hexagon nut structure and this body by integral forming.
The cross section of described ring cutting groove is rectangular.
The cross section of described expansion loop is semicircle.
A kind of expansion ring type pipe end link described in the utility model, be connected cooperation by outside thread with the interface of petroleum pipeline, tube wall by expansion loop and petroleum pipeline carries out press seal, and the described transition conical surface is friction surface, connecting end by this friction surface and petroleum pipeline carries out friction sealed, the oxidation rate that can slow down expansion loop simultaneously.
Description of drawings
Below according to drawings and embodiments the utility model is described in further detail.
Fig. 1 is a kind of structural drawing of the ring type pipe end link that expands.
Fig. 2 is use view of the present utility model.
In figure: 1, body; 2, projection; 3, the transition conical surface; 4, expansion loop; 5, hexagon nut structure.
Embodiment
As shown in Figure 1-2, the described a kind of expansion ring type pipe end link of the utility model embodiment, comprise body, body is tubular structure, the middle part of body has the projection of ring-type, the two ends of projection have the transition conical surface of inclination, be provided with outside thread on this external surface in the transition conical surface outside, be provided with the ring cutting groove on each described transition conical surface, in each ring cutting groove, expansion loop is installed, the described transition conical surface is friction surface, and the center of the projection of described body has integrated hexagon nut structure.
The cross section of described ring cutting groove is rectangular.
The cross section of described expansion loop is semicircle.
Described hexagon nut structure and this body by integral forming.
A kind of expansion ring type pipe end link described in the utility model, be connected cooperation by outside thread with the interface of petroleum pipeline, tube wall by expansion loop and petroleum pipeline carries out press seal, and the described transition conical surface is friction surface, connecting end by this friction surface and petroleum pipeline carries out friction sealed, the oxidation rate that can slow down expansion loop simultaneously.
Claims (3)
1. expansion ring type pipe end link, comprise body, it is characterized in that, body is tubular structure, the middle part of body has the projection of ring-type, the two ends of projection have the transition conical surface of inclination, be provided with outside thread on this external surface in the transition conical surface outside, be provided with the ring cutting groove on each described transition conical surface, in each ring cutting groove, expansion loop is installed, the described transition conical surface is friction surface, and the center of the projection of described body has integrated hexagon nut structure, described hexagon nut structure and this body by integral forming.
2. a kind of expansion ring type pipe end link as claimed in claim 1, is characterized in that, the cross section of described ring cutting groove is rectangular.
3. a kind of expansion ring type pipe end link as claimed in claim 1, is characterized in that, the cross section of described expansion loop is semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203149536U CN203297790U (en) | 2013-06-04 | 2013-06-04 | Expansion ring type pipe end connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203149536U CN203297790U (en) | 2013-06-04 | 2013-06-04 | Expansion ring type pipe end connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297790U true CN203297790U (en) | 2013-11-20 |
Family
ID=49573797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203149536U Expired - Fee Related CN203297790U (en) | 2013-06-04 | 2013-06-04 | Expansion ring type pipe end connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297790U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292078A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Expansion ring type pipe end connecting member |
| CN106489047A (en) * | 2014-05-07 | 2017-03-08 | 贝克休斯公司 | Pipe fitting connection arrangement and the hermetically method of connecting pipe |
| CN107339532A (en) * | 2017-08-11 | 2017-11-10 | 苏州市合叶精密机械有限公司 | A kind of flexible pipe overlapping joint |
| CN107575375A (en) * | 2017-09-06 | 2018-01-12 | 芜湖精达机械制造有限公司 | A kind of sea water pump pipeline joint device |
| CN109630774A (en) * | 2019-01-30 | 2019-04-16 | 重庆科创职业学院 | A kind of high intensity nipple |
-
2013
- 2013-06-04 CN CN2013203149536U patent/CN203297790U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292078A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Expansion ring type pipe end connecting member |
| CN106489047A (en) * | 2014-05-07 | 2017-03-08 | 贝克休斯公司 | Pipe fitting connection arrangement and the hermetically method of connecting pipe |
| CN106489047B (en) * | 2014-05-07 | 2020-02-18 | 贝克休斯公司 | Pipe connection arrangement and method for sealingly connecting pipes |
| CN107339532A (en) * | 2017-08-11 | 2017-11-10 | 苏州市合叶精密机械有限公司 | A kind of flexible pipe overlapping joint |
| CN107575375A (en) * | 2017-09-06 | 2018-01-12 | 芜湖精达机械制造有限公司 | A kind of sea water pump pipeline joint device |
| CN109630774A (en) * | 2019-01-30 | 2019-04-16 | 重庆科创职业学院 | A kind of high intensity nipple |
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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: 20131120 Termination date: 20140604 |