Waterproof rotary switch

A waterproof rotary switch comprising:

• a holder base, said holder base comprising a plurality of hooks extending from at least two opposite peripheral sides thereof;
• an intermediate switch housing mounted on said holder base, said intermediate switch housing comprising a partition wall disposed on a middle part thereof and dividing said intermediate switch housing into an upper part and a lower part, a center axle hole cut through the center of said intermediate partition wall, two locating structures respectively disposed at top and bottom sides of said partition wall, and a plurality of mounting wings respectively attached to the hooks of said holder base;
• two switching component sets respectively mounted in the locating structures of said intermediate housing at two opposite sides of said partition wall, said switching component sets each comprising a fixed metal terminal, a movable metal terminal, and two conductors respectively connected to said fixed metal terminal and said movable metal terminal, said fixed metal terminal having a contact, said movable metal terminal having a contact movable relative to the contact of said fixed metal terminal and adapted for contacting the contact of said fixed metal terminal;
• an actuator mounted in said holder base and inserted through the center axle hole of said partition wall, said actuator having a center shaft, a flange extending around said center shaft, an annular groove extending around said center shaft and surrounded by said flange, a connection wall suspending in said annular groove and connected between said center shaft and said flange, at least one drain hole cut through said connection wall, and an actuating portion rotatable with said actuator to move the contacts of the movable metal terminals of said two switching component sets between a first position where the contacts of the movable metal terminals of said two switching component sets respectively contact the contacts of the fixed metal terminals of said two switching component sets and a second position where the contacts of the movable metal terminals of said switching component sets are respectively disconnected from the contacts of the fixed metal terminals of said switching component sets;
• and
• a top cover covering said intermediate housing and said holder base to hold said intermediate housing and said switching component sets and said actuator on said holder base, said top cover comprising a plurality of hook holes that receive the hooks of said holder base and the mounting wings of said intermediate housing, a plurality of wire slots for the passing of the conductors of said switching component sets, and a top wall sloping radially and downwardly outwards in four directions from the center of said top cover to four periphery sides of said top cover, and a center axle hole cut through said top wall for the passing of the center shaft of said actuator, wherein said top cover is coated with a water repellent.