Drainage device based on TOD upper cover house

The utility model discloses a drainage device based on TOD upper cover residences, which comprises a rainwater collecting well and a rainwater hopper, the rainwater collecting well comprises a shaft and a well cover, and the rainwater hopper is arranged in the shaft; the device further comprises a grid frame and a filtering assembly. A grid frame is further arranged in the shaft, and the outer edge of the grid frame is connected with the inner side wall of the middle of the shaft in the circumferential direction. A filtering assembly is laid on the grid frame; the filtering assembly sequentially comprises a flexible filtering net bag, a geotechnical cloth bag and filtering filler from outside to inside. According to the drainage device, accumulated water on the upper portion can be effectively drained, and meanwhile the rainwater hopper is prevented from being blocked. 本实用新型公开了一种基于TOD上盖住宅类的排水装置，包括雨水收集井和雨水斗，所述雨水收集井包括井筒和井盖，所述雨水斗设置在井筒内；还包括网格架和过滤组件；所述井筒内还设有网格架，所述网格架的外缘周向与井筒中部内侧壁连接；网格架上铺设过滤组件；所述过滤组件由外向内依次包括柔性滤网袋、土