Open and shut structure of bilge well in cargo hold

摘要

The present invention relates to a structure for mounting a cover on a bilge well for storage of wastewater at the bottom of a double bottom structure of a hull by means of a load of an endless track vehicle which is operated when a cargo is unloaded in a cargo hold And it is an object of the present invention to prevent damage to the bolts of the bilge well cover.The present invention provides a coaming apparatus including a coaming unit for forming an entrance of a bilge well located at a lower portion of a bottom of a cargo hold, And a cover 12 which is seated on the upper end of the supporting end 20 and detachably coupled to the bilge well 10 to open and close the inlet of the bilge well 10, And the cover 12 is formed with a plurality of first through holes 12a for screwing with the supporting end 20 over the entire circumference, A nut 24 for screwing the cover 12 with the cover 12 via the cover 12 is fastened and the bolt 26 screwed with the nut 24 is fixed to the cover 12 when the head is completely fastened. As shown in Fig.;