A control switch, comprising:
- a top cover having a central hole, said central hole having an inner wall defining two opposite edges, said two opposite edges having respective positioning grooves;
- a bottom cover mating with said top cover, said bottom cover having an inside surface, and said inside surface having edges, two central elongated grooves extending longitudinally at the center of said bottom cover, two side elongated grooves extending longitudinally at respective sides said central elongated grooves, a lateral groove extending laterally at the center of said bottom cover, a screw hole at one end of each of said central and side elongated grooves, a plurality of spring positioning holes along said edges of said inside surface, and a spring positioning hole at each end of said lateral groove;
- a control button in said central hole of said top cover having a top button surface, a V-shaped bottom surface having opposite sides, opposite button sides each having a retaining pin, a plurality of first conducting plates securely mounted on said opposite sides of said V-shaped bottom surface, and a plurality of spring positioning holes in said V-shaped bottom surface corresponding to said plurality of spring positioning holes along said edges of said inside surface of said bottom cover;
- a spring disposed in each of said spring positioning holes along said edges of said inside surface of said bottom cover and the corresponding said spring positioning holes of said V-shaped bottom surface;
- two second conducting plates for connection to a DC voltage source, a first one of said second conducting plates having a lateral bend therein and one end provided with a lock hole, and a second one of said second conducting plates having a lateral bend therein, a downward bend therein and one end provided with a lock hole, wherein said second conducting plates are disposed in said two central elongated grooves so as to cross and are secured therein by screws engaging said lock holes thereof with said screw holes of said central elongated grooves;
- two third conducting plates for connection to a motor, wherein each of said third conducting plates is substantially flat, has one end provided with a lock hole, is disposed in a respective one of said side elongated grooves parallel with the other of said third conducting plates and secured by a screw engaging said lock hole thereof with one of said screw holes of said side elongated grooves;
- a contacting plate located in between said two second conducting plates and disposed in said lateral groove in said bottom cover, said contacting plate having a top having a supporting post at each end of said contacting plate and a bottom having two retaining posts, each said retaining post further protruding upwardly from said top, and each said retaining post having a spring thereon positioned in a said spring positioning hole of said lateral groove;
- wherein said retaining pins on said button sides butt against said supporting posts on said contacting plate, and said control button is movable between an off position wherein said retaining posts of said contacting plate engage said third conducting plates and two on positions wherein said retaining posts are disengaged from said third conducting plates and said first conducting plates contact and connect each of said second conducting plates with a respective one of said third conducting plates.