18-10-2018 дата публикации
Номер: KR1020180114445A
Принадлежит:
The present invention relates to an invert manhole provided with a manhole box (10) provided with an inlet (10a) and an outlet (10d) for rainwater or wastewater. The present invention is provided with a whirl reduction block provided with first to second inflow grooves (20a, 20b) and an outflow groove (20d) inserted into the manhole box (10) and formed so as to correspond to inflow and outflow pipes (30a, 30d) of the manhole box (10) and including flow velocity vector conversion columns (24; 24A, 24B) for converting the flow velocity sum vectors of a first inflow path (22a) and a second inflow path (22b) corresponding to the first inflow groove (20a) and the second inflow groove (20b) into a discharge path (22d). In the whirl resistance-improved invert manhole, the flow velocity vector conversion column (24) is composed of a first flow velocity vector conversion column (24A) for the first inflow path (22a) adjacent to the second inflow path (22b) to merge with the second inflow path (22b ...
Подробнее