A water inlet control mechanism for cleaning brushes has a brush embodiment, a telescopic tube, a valve assembly, and a rotary connector wherein the brush embodiment having a through groove for a scraper strip to be adapted thereto is attached to one end of the telescopic tube. The valve assembly sleeve joined to an outer tube of the telescopic tube is mainly made up of a valve body, a valve sleeve and a switch sleeve. The valve sleeve adapted to a transverse retaining hole of the valve body has a sealing ring abutting against a projecting flange of the valve body to seal up the discharge of water, and two arc ends located onto an eccentric arc facet of the switch sleeve via a guide slope for regulating the water discharge. The switch sleeve is rotated to one side to dislocate the sealing ring thereof from the projecting flange thereof via the eccentric arc facet pushing both arc ends thereof to reveal a gap there-between for the discharge of water. When the gap thereof becomes wider, the amount of water discharged will increase accordingly. Thus, via the mechanism thereof, the switch sleeve can directly regulate the discharge of water without any counter force produced therewith as well as accurately control the amount of water discharged, greatly saving the strength thereof.
展开▼
