The invention discloses a water tank constant-pressure
water supply device, and particularly relates to the technical field of
water supply devices. The water tank constant-pressure
water supply device comprises a
water storage tank, wherein the bottom end of the
water storage tank is fixedly connected with a supporting seat; and a water outlet of the
water storage tank communicates with a water supply mechanism through a flow guiding main tube. When the water tank constant-pressure water supply device needs to be cleaned, a hollow rotating shaft descends, a
propeller blade is driven to rotate under the effect of
water flow, a cleaning scraper and a bottom
brush are driven to rotate to automatically
clean water scale, when the hollow rotating shaft descends, a side cross rod is driven to descend synchronously, a pressing plate drives a primary filter plate to enter the flow guiding main tube, meanwhile, by a movable rod and a damping spring, the
propeller blade is accommodated in a storage box conveniently, in the mode, power is provided by
water flow to drive a cleaning structure to automatically clean the water scale, in a cleaning process, continuous filtering of the
water flow is ensured, the circumstance that the water scale is accumulated in the equipment to affect the equipment is prevented, the cleaning structure has an integral accommodating function, and stability is provided for constant-pressure water supply of the equipment.