SLEEVE FOR A BUILDING, WITH A HEIGHT REGULATION ABILITY, CAPABLE OF FACILITATING THE HEIGHT CONTROL AND AN ASSEMBLY OF A CYLINDRICAL PIPE HAVING A DIFFERENT CALIBER

摘要

PURPOSE: A sleeve for building with a height adjustment function is provided to easily adjust the height of a sleeve by fitting a rim into the selected recessed groove and by being assembled with a cylindrical pipe.;CONSTITUTION: A sleeve for building with a height adjustment function comprises cylindrical pipes(1,2) having large and small diameters. A recessed groove(10) is formed on the circumference of a small cylindrical pipe in multi stages. A rim(11) has an inverse L-shaped section to protrude outwards. The rim is fitted into the selected recessed groove of the small cylindrical pipe. The small cylindrical pipe is fitted into the large cylindrical pipe, and the protruded spot of the rim is located in the upper periphery of the large cylindrical pipe.;COPYRIGHT KIPO 2010