摘要 |
PURPOSE: A ventilation louver of a garbage input machine for an automatic garbage collection system is provided to reduce noise when ventilation holes are closed by making opening and closing units with one of ductile rubber, silicon, and urethane. CONSTITUTION: A ventilation louver(100) of a garbage input machine for an automatic garbage collection system comprises multiple ventilation holes(110) and opening and closing units(130). The multiple ventilation holes are formed in a garbage input machine so that the external air can flow into the garbage input machine through the multiple ventilation holes. The opening and closing units are arranged around the ventilation holes and selectively open or close the multiple ventilation holes by pressure differences between the pressure of the external air and the inner pressure of the garbage input machine. The opening and closing units are composed of a ductile material with heat resistance. |