High-rise building automatic water saving system without energy consumption

摘要: The invention relates to a high-rise building automatic water saving system without energy consumption. According the technical scheme, rainwater is drained into house on highest floor through collection port top of and drainage pipe; nonbearing wall bathroom in replaced by hollow storage made engineering plastics or metal other materials for storing rainwater; used flushing toilet cleaning mops outlet pipe valve arranged at lower end wall; an overflowing orifice upper are connected overflow when filled with rainwater, will automatically flow process repeated different floors. A bottom-layer lowest directly blowdown pipe. walls can be formed bricked mode molding casting PVC, materials. consumption has advantages being free power consumption, simple pipeline arrangement, capable preventing overflowing, obvious effect, beneficial industrial production convenient construct, device does not occupy space building.