| 摘要 |
PURPOSE: A pressure sensitive suction filter is provided to widen the upper side of a dust collecting filter by supporting protrusions to form dust space, and thereby improving the efficiency of dust collection. CONSTITUTION: A pressure sensitive suction filter comprises: a case (100); a soundproof filter (200) inserted inside the case; and a dust collection filter (300) inserted inside of the case. The dust collecting filter is installed on the upper part of the soundproof filter, and the upper side of the dust collecting filter is slit-processed. The pressure sensitive suction filter additionally comprises: a penetration hole (210) penetrating the soundproof filter; an extension member (110) and a supporting protrusion (111) protruded on the upper side of the extension member, and thereby penetrating the penetration hole. The extension member is extended from one lower side of the case to the other side. The supporting protrusion pressurizes the lower side of the dust collecting filter to the opening direction of the upper side of the case such that the transverse section of the dust collecting filter has a curve. |
