| 摘要 |
The present invention relates to a branch pipe connection device for a steel pipe and, more specifically, to a branch device capable of: enabling branching by partial cutting without cross cutting of a general steel pipe or a corrugated steel pipe; and improving the work efficiency by simplifying the connection process. According to the present invention, the branch pipe connection device for a steel pipe includes: a first flange unit which is formed at one side of a branch pipe, is inserted into a steel pipe through a branch hole formed on the outer circumferential surface of the steel pipe, and expands or reduces the length or width of one side; a packing unit which is placed between the flange unit and the inner circumferential surface of the steel pipe and prevents a fluid from leaking between the flange unit and the steel pipe; a second flange unit which is closely placed to the outer circumferential surface of the steel pipe around the branch hole; and a combination unit which combines the first flange unit, steel pipe, and second flange unit. According to the present invention, the branch pipe connection device for a steel pipe can connect or separate a branch pipe to or from a steel pipe, prevent water leak from connection fundamentally, enable arbitrary selection of a position to install the branch pipe, and shorten the processing period for the installation of the branch pipe, thereby improving the productivity. |
