Gravity flow rain bucket

Gravity flow rainwater hopper in indoor building drainage system. The traditional gravity flow rainwater bucket is made of cast iron, and the joint between cast iron and PVC drainage riser is not well sealed, so rainwater is easy to leak downward. It is an open structure, which can not filter impurities, and it is easy to block the entrance of the pipeline, which will cause the PVC riser to shrink. The utility model comprises a funnel-shaped body made of plastic, which is characterized in that the upper part of the body is covered with a plastic net cover, and a plurality of slots are opened on the net cover. The utility model has good sealing performance in connection with PVC drainage riser, which prevents rainwater from leaking from the connection, and the pipeline entrance is not blocked, thus preventing the drainage riser from shrinking.