Splashing-proof water drainage switch

The utility model relates to a splash-proof type water drainage switch, which is used on a platform type washing machine. The utility model is characterized in that an outer casing is composed of an upper and a lower casing devices which can tightly clamped together; a main shaft respectively passes through concentric holes of the upper casing and the lower casing; the fitting part of the main shaft and the upper casing hole is provided with a seal structure; the bottom of the main shaft is provided with a plane; a cam which is positioned on the main shaft forms a plane circular disk type structure; a group of electrical switch assemblies are arranged in a casing body, and comprise a straight piece-shaped static electrical contact piece and a dynamic electrical contact piece; a cam pushing block which is made of flame-retardant materials is arranged on the dynamic electrical contact piece; the position of the cam pushing block corresponds to the position of the cam on the main shaft; a leading wire of each electrical contact piece downwards passes through the lower casing, and is led out of the lower casing. The utility model has the advantages of strong splash-proof capability and strong water leakage-proof capability, and has the advantages that the quality and the safety performance of products can be increased.