Out-of-rudder guiding device for stern operation platform

The utility model discloses an out-of-rudder guiding device for a stern operation platform, which comprises a moving seat driven by a guiding oil cylinder to lift, moving seats which respectively move along two guiding shafts and are provided with guiding copper bushes are arranged on two sides of the rear end of the moving seat, and two ends of the two guiding shafts are fixed through guiding supports. Two guide chain wheel seats and a pipe wheel seat are arranged at the front end of the movable seat, the pipe wheel seat is arranged between the two guide chain wheel seats, a pipe wheel and a chain wheel are arranged on the pipe wheel seat and the guide chain wheel seats respectively, a guide chain is arranged on the chain wheel, and the two ends of the guide chain are fixed to the fixed support and the movable support respectively. The rudder blade positioning device is simple in structure, reasonable in design and capable of accurately positioning the rudder blade and improving the installation efficiency.