Cable pay-off device for fire engineering construction

The cable pay-off device for fire engineering construction comprises an installation frame, a clamping groove is formed in the rear side of the installation frame, a rotating shaft is rotationally installed in the clamping groove, a first gear is fixedly installed at one end of the rotating shaft, and a reciprocating threaded rod is rotationally installed on the inner wall of one side of the installation frame; the free end of the reciprocating threaded rod penetrates through the inner wall of the other side of the mounting frame and extends out of the mounting frame to be fixedly provided with a second gear, and the surfaces of the second gear and the first gear are provided with a chain in an engaged mode. According to the cable pay-off device for fire engineering construction, a cable coil and a rotating shaft are driven to rotate by pulling a cable, a first gear is driven to rotate through the rotating shaft, the first gear drives a second gear to rotate through a chain, then rotation of a reciprocating t