A WATER TANK

摘要

PURPOSE: A prefabricated water tank is provided to obtain secure installation of a cover panel and prevent the deviation of the cover panel due to a wing-type vertical wall stretched out from a vertical block. CONSTITUTION: A prefabricated water tank comprises a floor installation part, an outer wall(20), a plurality of vertical blocks, and a cover panel. The vertical blocks comprises one or more types of vertical blocks including Y-shaped vertical blocks(30Y) with three wing-type vertical walls protruding outward with an angle interval of 120 degrees, V-shaped vertical blocks(30V) with two wing-type vertical walls protruding outward with an angle interval of 120 degrees, and L-shaped vertical blocks(30L) with two wing-type vertical walls protruding outward with an angle interval of 90 degrees. The cover panel is placed at the top of the vertical blocks in contact with the outer wall. [Reference numerals] (AA) Hexagonal lid panel; (BB) Pentagonal lid panel; (CC) Diamond-shaped lid panel