| 摘要 |
<p>A rotary cleaning head assembly 1 features a rotating disc 2 carrying fluid distribution lines 11, and fluid and debris vacuuming members 4. The rotary head 1 is able to provide a significantly continuous vacuum via a vacuum opening in a cover disc, a vacuum distribution hub 9, and vacuum channel. Also disclosed is a rotary cleaning head assembly 1 featuring means 67 of routing at least a portion of the distributed cleaning fluid into vacuum opening portions 66 of the rotating head, such as to reduce out-flinging of cleaning fluid by the rotating action of the head.</p> |
