A punching and dust collecting device for decoration

Abstract

The present application relates to the field of building decoration auxiliary equipment, and discloses a punching dust collection device for decoration, which comprises a cover body, a dust collection groove, an elastic telescopic assembly and a negative pressure generating unit. The cover body has an expanded end and a contracted end, the expanded end is provided with an elastic sealing gasket for wall sticking operation, the side wall is provided with an inclined air inlet hole to form a wall sticking guide airflow, and the bottom is connected with a dust guide groove and a filter screen. The dust collection groove is detachably connected to the bottom of the cover body. The elastic telescopic assembly is arranged at the contracted end and comprises a bearing to isolate the rotary motion of the drill rod. The negative pressure generating unit is in communication with the cover body to generate a negative pressure airflow. The present application combines the static sealing of the cover body with the dynamic following sealing of the elastic telescopic assembly to realize the full-range surrounding of the drilling point. The wall sticking guide airflow formed by the inclined air inlet hole and the negative pressure enhancement effect at the dust guide groove construct an efficient dust directional conveying path.

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