Safety rope self-locking device for railway bridge safety inspection

The utility model discloses a safety rope self-locking device for railway bridge safety inspection, and relates to the technical field of safety rope self-locking devices, the safety rope self-locking device comprises a self-locking device main body and a safety rope, a self-locking assembly is arranged in the self-locking device main body, the self-locking assembly comprises a linkage frame, a clamping block is connected in the linkage frame, a torsion spring is connected to the clamping block, and the torsion spring is connected to the self-locking device main body. The linkage frame is connected with a driving block and a strong magnetic block. Through the arrangement of the self-locking assembly, when a worker stops locking the safety rope and moves and just falls off, if the worker loosens the hand, the driving block drives the linkage plate to reset, so that the clamping block makes contact with the safety rope to generate friction force for locking, and if the worker still holds the self-locking device