Collet device that scaffold rest base portion is adjustable

The utility model provides a collet device that scaffold rest base portion is adjustable, with scaffold frame union coupling includes backup pad, screw rod and nut, the backup pad is the rectangular plate, and the screw rod is shaft -like round steel cover rasp bar, and screw rod one end vertical fixation is equipped with the internal thread at the center of backup pad, nut, cup joints on the screw rod, during scaffold frame pipe is inserted to the screw rod upper end, and scaffold frame pipe and nut upper surface butt. A collet device that scaffold rest base portion is adjustable, adopt the rectangular plate as the backup pad, the screw rod vertical fixation, device stability is strong, the nut can be followed the screw rod and reciprocated, drives the scaffold frame pipe of connecting on the screw rod and reciprocates, upper and lower regulation that the scaffold frame of being convenient for was managed, the process is simple, the highly optional height -adjusting that can set up according to the floor hei