| 摘要 |
<p>A vacuum cleaner comprises a housing (28, fig 1) comprising a suction nozzle (30, fig 1), a suction source fluidly connected to the suction nozzle (30, fig 1) creating a working airstream through the housing (28, fig 1), a separation module (26, fig 1) separating contaminants from the working airstream, the separation module (26, fig 1) includes at least one separation chamber (38, fig 3) having an air inlet 46 in fluid communication with the suction nozzle (30, fig 1), an air outlet 58 and at least one collection chamber 48 which receives contaminants separated by the at least one separation chamber (38, fig 3) and an exhaust grill assembly (60, fig 3) including an exhaust grill having openings (62, fig 3) through which the working airstream may pass and mounted within the at least one separation chamber (38, fig 3) fluidly upstream from the air outlet 58 such that the working airstream passes through the openings (62, fig 3) of the exhaust grill before reaching the air outlet 58 and a plurality of debris catching tines 70 extending below the exhaust grill within the at least one collection chamber 48 which prevent elongated debris from wrapping around and blocking the openings (62, fig 3) of the exhaust grill. The tines 70 can extend either horizontally or vertically.</p> |
