FIELD: nozzle devices.
SUBSTANCE: group of inventions relates to a nozzle device capable of approaching to the surface (102) to be cleaned, and to a cleaning apparatus containing such a device. In this case, the nozzle device (7) contains the first suction body (11) and the second suction body (12) located at a distance from each other. The nozzle device (7) additionally contains a level setting mechanism (40), which is configured to place the first suction body (11) and the second suction body (12) at different general levels relative to the surface (102) in the normal working orientation of the nozzle device (7) on the surface (102). Thus, the cleaning performance using the nozzle device (7) can be improved. Additionally or alternatively, a suction enhancement mechanism (50) may be provided for at least partial convergence of at least one of the first suction body (11) and the second suction body (12) with one of the following: surface (102) and internal air duct (24, 25) of the nozzle device (7).
EFFECT: improved cleaning performance.
15 cl, 11 dwg
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