Prefabricated modular water blocking flange

The utility model provides a prefabricated modular water blocking flange which comprises a flange plate and a sleeve, and one end of the sleeve is connected with the middle of the flange plate. A spiral groove is formed in one side, close to the flange plate, of the sleeve; a partition plate is further arranged in the sleeve, and the flange plate, the sleeve and the partition plate are integrallyformed. An anti-seepage baffle is arranged in the middle of the sleeve; the outer diameter of the water seepage prevention baffle is larger than that of the sleeve. The flange plate, the water seepageprevention baffle and the partition plate are integrally parallel. The waterproof structure has the advantages of being good in waterproof effect, convenient to construct and high in construction efficiency. 本实用新型提供了预制模块化阻水法兰，包含法兰盘与套管，所述套管的一端与法兰盘的中部相连；套管靠法兰盘的一侧还设有螺旋槽；所述套管内还设有隔板，所述法兰盘、套管与隔板为一体成型；在套管的中部设有防渗水挡板；所述防渗水挡板的外径大于套管的外径；法兰盘、防渗水挡板与隔板整体相互平行。本实用新型的有益效果在于：防水效果好，且更方便于施工，施工效率高。