Positioning mechanism for anti-falling steel cable

The utility model discloses an anti-falling steel cable positioning mechanism which comprises a steel cable positioning cylinder, a steel cable penetrating hole, a micro control box, a driving motor, a positioning clamping piece, a speed detection element and an auxiliary platform, the steel cable penetrating hole is formed in the steel cable positioning cylinder in a penetrating mode, and the micro control box is arranged in the steel cable penetrating hole. A driving motor is arranged in an internal structure of the micro control box, a threaded lead screw fixedly connected with the output end of the micro control box can be driven to rotate through operation of the driving motor arranged in the micro control box, and two adjusting blocks connected with the external threads of the threaded lead screw can move relatively by means of opposite threads arranged outside the threaded lead screw; according to the anti-falling device, the positioning clamping pieces at one end of the steel cable can move relatively