US Patent 11006809 Water-spraying mop

A water-spraying mop comprising a mop rod, a mop head and a universal joint that rotationally connects the mop head and the mop rod; the mop rod comprises a water-squeezing frame that is disposed on the mop rod, and is capable of moving relative to the mop rod in an axial direction; the water-squeezing frame comprises a channel for allowing the mop head to pass through, a water-squeezing portion that is disposed in the channel, and faces the mop cloth while the mop head passes through the channel, and a liquid-spraying system consisted of a water tank, a water pump and a dynamic mechanism used for propelling the water pump to spray liquid; the water tank is disposed at the mop head, and the water pump is disposed in the mop rod.