| 摘要 |
<p>Universal vacuum cleaner, which without disassembly or exchange of parts, free of choice can be used for dry vacuum cleaning, wet vacuum cleaning, carpet cleaning, floor wash and to suck up water from kitchen sinks and the like. The universal vacuum cleaner works by injecting water, to which may be added a detergent, in the sucked in air stream through a system of nozzles (21 and 22), after which foreign matters are wetted by water and detergents. The coarse foreign matters are picked up in a detachable pick up tray (7) including a coarse filter (8), from which the liquid is drained to the below placed detachable liquid container (4). The smaller foreign matters and the water are separated from the air in a cyclone (15), accumulated in a liquid pump (16), which pumps the water and foreign matters return to the liquid container (4), whereas the dry and dust free air escapes through the opening (24) in the top of the cyclone (15). The detergent recirculates constant by the liquid pump (17). The liquid container (4), containing the dirty water, is taken out and emptied in a sink, when the vacuum cleaning is finished, washed out and refilled with clean water at next vacuum cleaning.</p> |
