Flexible pipe connected with flexible pipe connecting structure and method of connecting flexible pipe connecting structure with flexible pipe

摘要

The flexible pipe connected with the flexible pipe connecting structure according to an embodiment of the present invention, wherein the connecting structure includes a body part, and a connecting part configured to have a smaller thickness than a thickness of the body part, wherein the first end portion is inserted into and welded to the connecting part, wherein the ledge is a step part provided between the body part and the connecting part. Also, a method of connecting a flexible pipe connecting structure with a flexible pipe according to an embodiment of the present invention, comprises a filler metal applying step of applying a filler metal on at least one of a first end portion of the flexible pipe having ridges and valleys and a connecting part of the flexible pipe connecting structure into which the first end portion is inserted, a flexible pipe inserting step of inserting the first end portion of the flexible pipe into the connecting part of the flexible pipe connecting structure so that the first end portion is held by a ledge formed on the flexible pipe connecting structure, and a flexible pipe welding step of heating at least a part of the flexible pipe inserted into the flexible pipe connecting structure so that the first end portion of the flexible pipe is welded to the flexible pipe connecting structure by the filler metal.

主权项

1. A flexible pipe connected with a flexible pipe connecting structure, wherein
the flexible pipe connecting structure includes a ledge on an outer surface or an inner surface, and wherein the flexible pipe includes a first end portion having ridges and valleys, wherein the flexible pipe is inserted into at least a part of the connecting structure so that the first end portion is held by the ledge, wherein the first end portion is welded to the connecting structure by a filler metal, wherein the connecting structure includes:
a body part configured to extend the flexible pipe or connect with another pipe or device; anda connecting part configured to have a smaller thickness than a thickness of the body part, wherein the first end portion is inserted into and welded to the connecting part, wherein the ledge is a step part provided between the body part and the connecting part, wherein the flexible pipe includes spiral ridges and valleys, wherein the connecting part includes spiral ridges and valleys that correspond to the ridges and valleys of the flexible pipe so that the flexible pipe is rotatingly connected to the connecting part, andwherein at least some of the ridges and valleys of the first end portion of the flexible pipe is welded to the valleys and the ridges of the connecting part by the filler metal.