| 摘要 |
PURPOSE: A ventilation opening for air-conditioning indoor air is provided to adjust the amount of supplying air according to the size of a room by installing an adjustor to an air supply hole in order to adjust the size of a ventilation hole. CONSTITUTION: A ventilation opening(1) for air-conditioning indoor air comprises a cover plate(800) which includes a ventilation hole(801) formed on an air supply hole(1b), an adjusting plate(802) which controls the size of the ventilation hole with being laminated on the cover plate and is assembled by using an anchoring bolt(803), a variable adjustor which is fixed with varying the size of the ventilation hole, and a disc type adjustor which is inserted into the air supply hole and wherein a ventilating hole is formed at the central part of the disc type adjustor into a standard size. A selected adjustor among the variable adjustor and the disc type adjustor is selectively installed and controls the size of the ventilation hole according to the size of a room.
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