Assembly type prefabricated concrete floor hoisting device

The invention discloses an assembly type precast concrete floor hoisting device which comprises a hoisting frame, a visual ultrasonic distance sensing device and a micro-control lowering device, the hoisting frame comprises edge strips, edge reinforcing parts, hoisting steel wire ropes and a hoisting main ring, and the two edge strips and the two edge reinforcing parts are connected to form a rectangular frame; the visual ultrasonic distance sensing device comprises four electric eye radar probes installed at the end points of the four corners of the lifting frame, the two micro-control lowering devices are installed below the lifting frame, two parallel lifting plate steel wire rope assemblies are connected between the two micro-control lowering devices, and lifting plate steel wire ropes are used for hanging a prefabricated concrete floor. The prefabricated concrete floor slab hoisting device can meet the hoisting requirements of prefabricated concrete floor slabs of different sizes, during operation, commu