One-way constant-force electric cable take-up mechanism

The utility model discloses a one-way constant-force electric cable collecting mechanism which comprises a motor, a cable collecting disc and a locking mechanism, the cable collecting disc is arrangedon an output shaft of the motor in a sleeving mode, the locking mechanism is arranged on one side of the cable collecting disc, a steel cable is wound on the cable collecting disc, the end of the steel cable is connected with a ground anchor, and a torque limiter is connected between the output shaft of the motor and the cable collecting disc. The motor drives the cable collecting disc to rotate,so that the steel cable is collected and released, the distance between the air-drop platform and the ground anchor is changed, the locking mechanism is used for locking the cable collecting disc andpreventing the cable collecting disc from rotating, the steel cable can be automatically tightened in one direction, the steel cable is stopped after the specified torque is reached, the defect thatthe motor is burnt out is ov