Gate shaft for sewage interception pipeline of river water conservancy project

The utility model discloses a sewage interception pipeline gate shaft of a river channel water conservancy project. The problem that an existing gate is not closed tightly is solved. The well lid, the electromechanical equipment chamber and the sewage well chamber are sequentially arranged from top to bottom, a partition plate is arranged between the electromechanical equipment chamber and the sewage well chamber, a sewage inlet and a sewage outlet are formed in the two side walls of the sewage well chamber respectively, the gate assembly comprises a gate, a cantilever and an embedded part, and the gate is matched with the sewage inlet through a conical surface; in an opening state, the conical surfaces between the gate and the sewage inlet are separated; the cantilever is fixed to the inner wall of the sewage well chamber through an embedded part and movably connected with the gate in a threaded fit mode. And electromechanical equipment in the electromechanical equipment room drives the gate to do telescopic