Safety lock buffer

The utility model discloses a safety lock buffer, and belongs to the technical field of manned lifting operation platforms. The safety lock buffer comprises two pull plates and a lock fixing frame, the lock fixing frame is fixedly connected with the pull plates, the pull plates are L-shaped plates, a buffer block, a moving plate, a tension bolt and a locking nut are arranged between the two pull plates, a bracket is arranged below the pull plates and comprises a connecting plate and a lug plate, and the connecting plate is fixedly connected with the lug plate. The tension bolt sequentially penetrates through the connecting plate, the lower bottom plate of the pulling plate, the buffer block and the movable plate from bottom to top, and a locking nut is fixed to the upper end of the tension bolt. The safety protection device has an effective buffering effect on impact force generated by breaking of a working steel wire rope of the manned lifting operation platform, can effectively protect the lifting platform