Dual-control water tank variable-frequency constant-pressure water supply system

The invention discloses a double-control water tank variable-frequency constant-pressure water supply system, which belongs to the technical field of water tanks, and comprises a water storage tank body, a water storage chamber is arranged in the water storage tank body, a water inlet height control mechanism is arranged in the water storage chamber of the water storage tank body, and the water inlet height control mechanism comprises a lifting support plate, a water inlet hose, a lifting support arm and an electric push rod. The lifting supporting plate is arranged in a water storage chamber of the water storage tank, the lifting supporting arm is fixed to the center of the upper end face of the lifting supporting plate, the electric push rod is fixed to the rear surface of the water storage tank, the water inlet hose is arranged in the water storage chamber of the water storage tank, and the filtering mechanism is arranged between the water inlet hose and the lower end face of the lifting supporting plate.