Sewage treatment water level control weir gate

The utility model discloses a water level control weir gate for sewage treatment. The device comprises a water outlet tank poured in a sewage pool, a movable groove is formed in the water outlet groove; a transverse strip is fixed in the movable groove through a screw; a pipe part with an internal thread is welded at the middle position of the transverse strip; a gangplank for people to pass through is built above the sewage pool; a bearing corresponding to the pipe part is mounted at the springboard; a rod piece is assembled through the bearing, an external thread part is machined on the rodpiece, the external thread part is matched with the pipe part, a limiting nut is installed on the external thread part, a water outlet pipe is welded to the outer wall of the water outlet groove, anda ball valve is installed on the water outlet pipe; the product can be upgraded for a sewage pool, the overflow height can be flexibly adjusted according to the sludge sedimentation depth, and enoughsedimentation space is ensu