AUTOMATIC VARIABLE FLOW WATER-SAVING WATER TANK

The utility model relates to an automatic variable flow water-saving water tank which is composed of a box body, a water intake control mechanism, a water discharge volume control mechanism, and an operating mechanism. The utility model is characterized in that a stop valve arranged at the water inlet is controlled by a hollow regulating nut and transmission steel wire which belong to water intake control mechanism; water discharge volume control cover is controlled by a cross-bar which carries out linkage with the water intake control mechanism; the action of a handle of the operating mechanism is realized by a sectorial crank arm drives a water sealing lifting lever to control a water sealing valve of a water outlet. A pressure control mechanism is arranged in the box body. The purpose of water saving is realized by the automatic variable control of the quantity of water flushing. The utility model is suitable for the improvement of a flushing water tank of a urinal.