Lifting type water conservancy gate mechanism capable of operating smoothly

The invention discloses a lifting type water conservancy gate mechanism capable of operating smoothly. The lifting type water conservancy gate mechanism capable of operating smoothly comprises a gate lifting plate (5) which is used for opening and closing a water gate in a wall body (1) and a fixed machine frame (2) which is fixedly mounted on the wall body (1), wherein the upper side of the gate lifting plate (5) is fixedly connected with the lower end of a lifting driving threaded sleeve (44); external screw threads are formed on the outer circumference of the lifting driving threaded sleeve (44) and are used for matching the internal screw threads in a lower driving threaded piece (41) which is mounted in the fixed machine frame (2) and is driven by a lower driving worm (43); a sliding groove (40) which extends axially is formed in the inner circumference of the lifting driving threaded sleeve (44) and is used for matching a radial extending part (35) which is fixedly connected at the lower end of a thread