CN203297790U - Expansion ring type pipe end connecting piece - Google Patents

Expansion ring type pipe end connecting piece Download PDF

Info

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
Application number
CN2013203149536U
Other languages
Chinese (zh)
Inventor
沈金章
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Jinding Oil Pipe Fittings Co Ltd
Original Assignee
Wuxi Jinding Oil Pipe Fittings Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuxi Jinding Oil Pipe Fittings Co Ltd filed Critical Wuxi Jinding Oil Pipe Fittings Co Ltd
Priority to CN2013203149536U priority Critical patent/CN203297790U/en
Application granted granted Critical
Publication of CN203297790U publication Critical patent/CN203297790U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

A kind of expansion ring type pipe end link
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.
CN2013203149536U 2013-06-04 2013-06-04 Expansion ring type pipe end connecting piece Expired - Fee Related CN203297790U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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