| 摘要 |
Provided is a dust collecting filter for dry core which collects dust to prevent scattering of dust generated when perforating a wall body with a dry core, and can improve operation efficiency by accurately indicating and inducing a part to be perforated. The dust collecting filter(1) for dry core comprises: a wall surface protecting sticker(2) which has a target(10) and a perforation line(11) formed on the front thereof to adjust the center and position of a core bit, and has an adhesion surface formed on the backside thereof such that the wall surface protecting sticker can be adhered onto a wall body; and a dust collecting housing(3) which is adhered onto the wall surface protecting sticker and formed in a sealed box shape, in which a space part for collecting scattering dust is formed, and which has an inlet(5) and an outlet respectively penetrated into the front(4) and the back thereof, wherein a rubber film(17) is formed on the inlet such that the rubber film is closely adhered to the core bit, and an adhesion surface to which a protection sheet is adhered is formed on the backside of the dust collecting housing to clamp the dust collecting filter to the core bit of the dry core by adhering the dust collecting housing onto the wall body such that the outlet and the perforation line correspond with each other.
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