The ecological floating ball
natural ventilation device comprises an air supply cylinder and a fixing plate, mounting grooves are symmetrically formed in the upper end of the inner side face of the air supply cylinder, one-way valves are fixedly connected into the mounting grooves, and the bottom of the inner side of the air supply cylinder is symmetrically connected with one ends of air guide pipes; and meanwhile, the upper end of the outer side face of the air supply cylinder is fixedly connected with a fixing plate, confluence grooves are correspondingly formed in the positions, opposite to the one-way valves, of the inner side face of the fixing plate, penetrating grooves are symmetrically formed in the surface of the fixing plate, and meanwhile the two ends of the penetrating grooves communicate with the corresponding confluence grooves through flow guide grooves. According to the
natural ventilation device,
airflow can stably flow through the one-way valve through cooperation of the fixing plate, the penetrating groove, the flow guide groove and the confluence groove,
external liquid is prevented from synchronously flowing into the air supply cylinder along with the
airflow, the one-way valve can be prevented from being blocked by external sundries, and the stability of the
natural ventilation device in use is improved.