Heat dissipation device for control cabinet

The utility model discloses a heat dissipation device for a control cabinet, which comprises a box body and is characterized in that the inner side of an opening in the upper side of the box body is fixedly connected with the upper side of a water tank, one side of the box body is fixedly connected with a U-shaped supporting plate, a transverse plate on the upper side of the U-shaped supporting plate is fixedly connected with a motor, an output shaft of the motor penetrates through the transverse plate on the upper side of the U-shaped supporting plate, and the output shaft of the motor is fixedly connected with the U-shaped supporting plate. An output shaft of the motor is fixedly connected with the center of a first bevel gear, the first bevel gear is meshed with a second bevel gear, a center shaft of the second bevel gear is movably connected with the middle of a vertical plate of the U-shaped supporting plate, and the end of the center shaft of the second bevel gear is fixedly connected with the middle of