Handwheel Gate Opener, also known as a manual screw gate opener, is a device used for manually operating flat gate opening and closing. It features an automatic locking function, allowing the gate to remain at any position. It is equipped with a theft-proof mouth and wrench, providing water theft prevention. The screw gate opener offers quick direction and speed variation with manual cranking. It is easy to maneuver, with smooth opening and closing capabilities. Its structure consists of the housing, cover, bracket, nut, screw, large and small bevel gears, pressure bearings, and hand crank.