| 摘要 |
A suction device designed to suck air and liquid from a planar surface, and more particularly the scraper blade active portion (1) intended to be moved on said surface (S). The active portion (1) is in the form of a single blade, made from a flexible or semi-rigid material, intended to be moved in one direction against the planar surface, and comprising an internal cavity connected to a means for sucking air and liquid, and defined, at the distal portion of the blade (1), behind the ridge (21) intended to be moved on the surface (S), by two walls (24, 30) that together form an angle and that meet at the ridge (21), the wall (24) intended to be presented first towards the surface to be scraped during a scraping operation having, alongside and close to the ridge (21), a plurality of holes (23) that open into the cavity. |
