Safety waterproof knife switch

The invention relates to the technical field of knife switches, and especially relates to a safety waterproof knife switch. Mounting plates are disposed on two sides of a housing body; the two sides of the housing body of the lower parts of the mounting plates are provided with inlet wire mechanisms; upper parts of the two mounting plates are respectively provided with a frame body and a mountingblock; a moving block is disposed inside the frame body; a first spring is disposed between one side of the moving block and the frame body; the other end of a cover plate is provided with a positioning block corresponding to a positioning hole; fixed grooves are disposed above the housing body; sealing rings are installed inside the fixed grooves; and the bottom of the interior of the housing body is connected to a knife switch main body through fixation mechanisms. The knife switch is reasonable in design and convenient to operate; the sealing rings are disposed to prevent water from contacting a lead wire part of t