A DROP STRUCTURE WITH REPLACEABLE FILTER

摘要

PURPOSE: A natural type footbridge-shaped river rapids ball for internally mounting a replaceable filter is provided to enhance a frictional force by installing a rapids body made of natural stone in between footbridge main bodies in order to cause the aeration of water. CONSTITUTION: A natural type footbridge-shaped river rapids ball(100) comprises a base part(110), a supporting part(120), a footbridge main body(130), a rapids body(140), and a steel wire(150). The footbridge main body is installed in zigzag into two or more lines, is internally mounted with a replaceable filter material, and is attached with a cover that can be opened in the top surface of a wire mesh. The rapids body is installed in between footbridge main bodies in order to cause the aeration of water. The steel wire penetrates the footbridge main body and is fixed to the supporting part by both ends.