| 摘要 |
The present invention relates to a manual rotation driving unit comprising: a first rod, a second rod, a helix axle provided in the first rod and extending along an axis of the first rod, a sleeve which cooperates with a helix groove of the helix axle via a roll ball accommodated in the roll ball accommodating device, and a one-way clutch system configured such that the first rod, the helix axle, the sleeve and the second rod are successively coupled for transmission so as to allow the second rod to be driven by the first rod to rotate in the positive direction when the first rod moves along the first direction with respect to the second rod, and the transmission of the first rod, the helix axle, the sleeve and the second rod is decoupled by the one-way clutch system when the first rod moves along a second direction in opposite to the first direction with respect to the second rod. The manual rotation driving unit can dehydrate a cleaning head of a domestic cleaning tool with a high speed and have a long service life. |
