CN202452003U

CN202452003U - Petroleum pipeline sealing connection device

Info

Publication number: CN202452003U
Application number: CN2012200705742U
Authority: CN
Inventors: ***
Original assignee: BEIJING HUAYOU XINGYE ENERGY TECHNOLOGY Co Ltd; XINJIANG STEHR PETROLEUM PIPE MANUFACTURING CO LTD
Current assignee: BEIJING HUAYOU XINGYE ENERGY TECHNOLOGY Co Ltd; XINJIANG STEHR PETROLEUM PIPE MANUFACTURING CO LTD
Priority date: 2012-02-29
Filing date: 2012-02-29
Publication date: 2012-09-26
Anticipated expiration: 2022-02-28

Abstract

The utility model discloses a petroleum pipeline sealing connection device. The device comprises a section of couplings, a circular retaining shoulder is arranged in the middle portion of couplings, an inner sealing ring is respectively sleeved in a fit mode inside couplings on two sides of the circular retaining shoulder, the cross section of the inner sealing ring is in a C shape, the inner sealing ring and the coupling are located in the same axis, the inner peripheral walls of the couplings arranged on the two sides of the retaining shoulders are conical surfaces, connecting screw threads are respectively arranged on the inner periphery walls of the couplings arranged on the outer side of the conical surfaces to form screw thread connection ends, a conical loop sealing ring and a locking plug are respectively sleeved in a fit mode from inside to outside on two pipelines of an inner side end, which abut against two inner sealing rings, the locking plug is connected with the screw thread connection ends, and two outer sealing rings are arranged at intervals on the outer periphery of the conical sealing ring. The petroleum pipeline sealing connection device is simple in structure, reliable in sealing and convenient and fast to connect.

Description

The petroleum pipeline seal connection

Technical field

The utility model relates to a kind of petroleum pipeline connection set, particularly petroleum pipeline seal connection.

Background technique

Connection between traditional pipeline road need be threaded, and need screw thread be set at the transport pipe two ends, connects, seals through joint; Not only manufacture cost is high, in case and pipeline occurs damaging or leakage problem appears in the joint, often be not easy to maintenance and leak detection; Pipeline is changed difficulty; Sealing effect is poor, and the workman is big to the maintenance workload of transport pipe, uses inconvenient.

Summary of the invention

The purpose of the utility model is to provide a kind of petroleum pipeline seal connection, and it is simple in structure, and sealing is reliable, convenient and fast connection.

The purpose of the utility model is to realize like this; A kind of petroleum pipeline seal connection comprises one section box cupling, has a ring-type shoulder block in the middle part of box cupling; Cooperate suit an inner seal ring in the box cupling of ring-type shoulder block both sides respectively, inner seal ring and box cupling coaxial line; The box cupling inner circle wall of shoulder block both sides is coned face, on the box cupling inner circle wall in the coned face outside connecting thread is being set respectively and is constituting threaded ends; Cooperate suit conical ring seal ring and locking plug from inside to outside respectively on medial extremity and two pipelines that two inner seal rings offset; The locking plug links to each other with said threaded ends; The twice exterior seal ring is being set on the outer circumferential face of conical ring seal ring at interval; Said inner seal ring is the annular solid of hollow, and an annular gap is being set on the inner circle wall of inner seal ring, and the cross section of inner seal ring is the C font.

The utility model need not at the transport pipe two ends connecting thread to be set, and can carry out the connection operation of pipeline quickly and easily, in case leakage problem appears in pipe joint; The maintenance of can in time hunting leak is easily changed and is damaged parts, can connect pipeline road quickly and easily; And adopt the seal ring of hollow to seal, can play the liquid sealing effect, good sealing effect; Improve working efficiency greatly, reduced working strength of workers, easy to use.

Description of drawings

To combine accompanying drawing that the utility model is done further detailed explanation below.

Fig. 1 looks cross-sectional view for the master of the utility model.

Embodiment

A kind of petroleum pipeline seal connection, as shown in Figure 1, comprise one section box cupling 6, have a ring-type shoulder block in the middle part of box cupling 6, cooperate suit an inner seal ring 5 in the box cupling of ring-type shoulder block both sides respectively, inner seal ring 5 and box cupling 6 coaxial lines; The box cupling inner circle wall of shoulder block both sides is coned face, on the box cupling inner circle wall in the coned face outside connecting thread is being set respectively and is constituting threaded ends; Cooperate suit conical ring seal ring 3 and locking plug 2 from inside to outside respectively on medial extremity and two pipelines 1 that two inner seal rings 5 offset; Locking plug 2 links to each other with said threaded ends, and twice exterior seal ring 4 is being set on the outer circumferential face of conical ring seal ring 3 at interval.Said inner seal ring 5 is the annular solid of hollow, and an annular gap is being set on the inner circle wall of inner seal ring 5, and the cross section of inner seal ring 5 is the C font.When the utility model used, the pipeline 1 that two needs are connected inserted respectively in the box cupling 6 and with inner seal ring 5 and offsets, and the rotational lock plug 2 then; Said conical ring seal ring 3 is inwardly pushed; Outer wall space to pipeline 1 seals, and it is simple in structure, can connect pipeline road quickly and easily; Good sealing effect, easy to use.

Claims

1. a petroleum pipeline seal connection comprises one section box cupling, it is characterized in that: have a ring-type shoulder block in the middle part of box cupling, cooperate suit an inner seal ring in the box cupling of ring-type shoulder block both sides respectively, inner seal ring and box cupling coaxial line; The box cupling inner circle wall of shoulder block both sides is coned face, on the box cupling inner circle wall in the coned face outside connecting thread is being set respectively and is constituting threaded ends; Cooperate suit conical ring seal ring and locking plug from inside to outside respectively on medial extremity and two pipelines that two inner seal rings offset; The locking plug links to each other with said threaded ends; The twice exterior seal ring is being set on the outer circumferential face of conical ring seal ring at interval; Said inner seal ring is the annular solid of hollow, and an annular gap is being set on the inner circle wall of inner seal ring, and the cross section of inner seal ring is the C font.