Abstract: A toilet inlet valve and control method thereof, the inlet valve comprises a valve body, an inlet pipe, a water stop device with a water stop rubber gasket, a float bowl device, a raising rod device and an outlet pipe, wherein, the water stop device also comprises a water stop seat, a tray, a needle valve and a back pressure cavity; the water stop seat is located at the front end of the outlet pipe, and of which the opening is coupling with the end face of the water stop rubber gasket; the tray is connected to the water stop rubber gasket, and is located at the side of the water stop seat that is opposite to the water stop rubber gasket; the needle valve is fixed to the tray, and is located at the side of the water stop rubber gasket that is opposite to the tray.

Abstract: The present invention discloses an inlet structure of water-storing keg float, comprises an inlet, an outlet pipe and a water-storing keg float with a storage tank, and the inlet is provided with a channel passing through the outlet pipe, and the channel is provided with a water-storing cavity and a guide hole, and the guide hole is communicated with the water-storing cavity and the outside wall of the outlet pipe. Because water-storing cavity is present, part of water from the inlet can be stored in the water-storing cavity because of gravity, and this part of water fully enters the storage tank of the keg float through the guide hole, and the keg float can be balanced effectively under different water pressure conditions, and the stability of the keg float is enhanced.