| 摘要 |
FIELD: personal use articles. ^ SUBSTANCE: spray nozzle and dust head is used for liquid appliance onto the cleaning surface and its collection by suction. Spray nozzle and dust head has suction passage, suction hole, spray attached to nozzle and adapter for surface treatment having various structure. Adapter is joined with a rotary axis to spray nozzle and dust head and is manufactured with a possibility of rotating from workless condition remote from drawing-in hole, into operative condition, in front of drawing-in hole of spray nozzle and dust head. Adapter in its workless condition is used as support surface for spray nozzle and dust head and provides optimal position for drawing-in hole relatively to processed surface. ^ EFFECT: troubleshoot in installing of adapter head, prevention of adapter loss; both sponges of drawing-in holes of heads are set with similar gap against floor for no secondary air intake. ^ 14 cl, 4 dwg |
