Quantitative-feeding washing liquid distributor

The invention provides a detergent distributor capable of achieving quantitative feeding. The detergent distributor comprises a detergent feeding box, a detergent storage cavity and a transmission mechanism, wherein the detergent storage cavity and the detergent feeding box are installed in a matched mode. One-way flow valves are arranged on the transmission mechanism and the washing liquid storage cavity; a liquid injection opening and a liquid outlet are formed in the washing liquid feeding box, and the liquid injection opening is in one-way communication with the washing liquid storage cavity; the washing liquid storage cavity, the transmission mechanism and the liquid outlet are sequentially communicated in a one-way mode through the one-way circulation valve, the transmission mechanism and the one-way circulation valve are matched with each other to enable washing liquid to be quantitatively output outwards from the liquid outlet, and the one-way circulation valve, the transmission mechanism, the washing