Runoff water collection device and runoff water collecting method using the same

Abstract

The present invention relates to a device for collecting runoff water, comprises body section having an open inlet at its upper part and an interior space for accommodating runoff water, and a buoyant member installed inside the body section, which floats due to buoyancy generated by the runoff water introduced into the body section. When the buoyant member, floated by the runoff water introduced into the body section, seals the open upper surface of the body section, the inlet includes a cap member with a vertically penetrating opening. The device according to the present invention, due to its structure, is a convenient and efficient tool for collecting runoff water. In particular, it can collect only a predetermined amount of runoff water during rainfall while blocking additional inflow, making it highly effective for applications requiring the collection of initial runoff water.

Dependencies are inferred from the claim text.