| 摘要 |
<p>A dust suctioning pick-up head for a sweeping vehicle comprises a shroud defining a fore-aft longitudinal axis, and has a substantially hollow interior, a bottom edge defining a bottom opening, and a forwardly facing debris outlet for permitting the directed egress of debris from the shroud as a forwardly propelled stream of debris. At least one cylindrical main sweeping broom is disposed within the substantially hollow interior of the shroud for engaging a surface to be cleaned through the bottom opening to thereby sweep dust and debris from the surface to be cleaned and propel the dust and debris forwardly through the forwardly facing debris outlet. A dust suctioning nozzle apparatus has a dust receiving mouth in fluid communication with a dust transfer outlet connectable in fluid communication with a source of air suctioning. The dust receiving mouth is in fluid communication with the substantially hollow interior of the shroud so as to suction air therefrom, and is disposed vertically adjacent the bottom edge of the shroud so as to be in dust suctioning relation to the surface being cleaned, and rearwardly of the at least one cylindrical main sweeping broom to thereby permit the suctioning of dust from the surface to be cleaned subsequent to the surface being swept by the at least one cylindrical main sweeping broom.</p> |
