Electric control valve for drainage pipe

The utility model discloses an electric control valve for a drain pipe, which belongs to the technical field of control valve equipment and comprises a cooling fan, a power component is tightly attached to the lower side of the cooling fan and comprises a motor, a protection component is arranged on one side of the motor, and a battery pack is arranged on the other side of the motor. A supporting assembly is arranged at the lower end of the power assembly and comprises a supporting frame, and a limiting block is arranged on the inner surface of the supporting frame; a pull rod is arranged at the center point of the power assembly and the supporting assembly and penetrates through the power assembly and the supporting assembly, a manual rotating disc is arranged at the end, close to the power assembly, of the pull rod, and the other end of the pull rod is connected with a valve element. According to the utility model, the heat dissipation function can be realized, and the electric control valve can be closed u