Rainwater drainage device installed in parking lot, has closure caps that are provided at upper surfaces of perforated hollow sections which are connected with each other through connection structure

摘要

The rainwater drainage device has two perforated hollow sections (1) that are connected with each other through a connection structure (5). Two plate portions (6) are provided in the connection structure. The plate portions are connected by a connection tape. Each perforated hollow section is provided with a terminal portion. A closure cap (4) is arranged at an upper surface of the perforated hollow section.