A BLIND BOARD APPARATUS FOR BAD SMELL DECREASIGN OF SEWAGE BOX

摘要

The present invention relates to a malodor-reducing screen fence device for a sewage conduit where screen fence boards are assembled and combined in a mosaic shape to be able to open and close at various heights depending on the level of fluid. More specifically, stiffness can be enhanced and leakage of smells can be prevented by forming foldable surfaces on the four surfaces of each of the screen fence boards and arranging a first foldable surface to overlap on the upper surface of a second foldable surface.