Flood discharge gate for water conservancy

The flood discharge gate for water conservancy comprises a gate frame, a gate body, pressure reduction plates, a trapezoidal protection barrel and smashing blades, the gate body is arranged on the gate frame in a sliding mode through a driving base, the two pressure reduction plates are both installed on the gate body in a sliding mode through adjusting bases, and pressure reduction openings matched with the pressure reduction plates are formed in the gate body. And the trapezoidal protection barrel is slidably arranged on one side of the door body through the lifting assembly, the multiple smashing blades are rotatably installed in the trapezoidal protection barrel through the rotating seat, and the outer side wall of the trapezoidal protection barrel is provided with a downward sliding face, so that residues of sludge and impurities on the trapezoidal protection barrel are reduced conveniently. According to the flood discharge gate for water conservancy, pressure reduction can be conveniently conducted on t