Building prevents blockking up drainage device

The utility model discloses a building prevents blockking up drainage device, including shell, a long -pending sediment section of thick bamboo and scraper blade, the bottom surface is the inclined plane in the shell, is provided with the filter screen on this inclined plane, filter screen one side is provided with the mud hole, just the mud hole is close to top of slope one side of shell bottom surface, the shell is inside to be provided with the scraper blade, can with filter residue on the filter screen strikes off, be provided with the spout on the scraper blade, the scraper blade passes through the spout is connected with the pull handle. Beneficial effect lies in: through the filter screen solid waste in to sewage filter to avoid the waste residue to block up the drain pipe, draw through carrying the pull handle makes the scraper blade will solid waste on the filter screen scrape into in the mud hole, avoid the waste residue to pile up too much, stop up the filter screen, througha long -pending sediment