A double containment formula waterproof construction for bathroom floor drain

The utility model aims at providing a double containment formula waterproof construction for bathroom floor drain. The utility model provides a knead dough the layer by floor drain, downcomer, waterproof ring, waterproof layer, floor, screed -coat and forms, be equipped with first sealing layer, second sealing layer and hoop outside the floor drain, waterproof ring's the waterproof microlith concrete of adoption to carry out the tamping and pile up and form, it is firm reliable, prevent hookup location department not rigorous of floor drain and downcomer from to avoid the water to ooze, the waterproof layer adopts polyurethane or polyphenyl board as the infiltration protective layer to hug closely waterproof ring, played good waterproof, heat preservation effect, this structure adopts theobstruction component of double containment layer as the infiltration of bathroom floor drain to joint portion on the double containment layer consolidates, thereby guarantees the waterproof qualification rate of once checkin