Insulating cover device of pipe-insulating structure, and manufacturing method therefor

A method of manufacturing an insulating cover device of a pipe-insulating structure, the method comprising:

• preparing a finishing cover configured to cover an outer surface of an insulator surrounding a pipe, and a protective sheet arranged to cover a portion, which is not covered by the finishing cover, of the outer surface of the insulator, with the protective sheet having, at an end thereof, a ring part into which a steel wire is inserted, and preparing a connecting socket integrally comprising a horizontal plate part, an inner vertical plate part extending perpendicularly from the horizontal plate part, and an outer vertical plate part extending perpendicularly from the horizontal plate part, with an insertion groove being formed between the inner vertical plate part and the outer vertical plate part, so as to connect the finishing cover and the protective sheet to each other;
• coupling the finishing cover and the connecting socket to each other by forming a plurality of ring-shaped pressing parts in the inner vertical plate part while an end part of the finishing cover is inserted into the insertion groove after inserting the end part of the finishing cover into the insertion groove;
• and
• coupling the protective sheet and the connecting socket to each other by clamping the ring part in a form of surrounding the ring part, into which the steel wire is inserted, by using clamping hooks cut from the inner vertical plate part and then bent or rolled up while the ring part of the protective sheet is placed in a corner between the horizontal plate part and the inner vertical plate part of the connecting socket.