Construction frame with high protective property

The construction frame comprises a bottom box, rectangular protection strips are arranged on the upper side of the bottom box, net boxes with openings in the upper ends are fixedly connected to the positions, corresponding to the protection strips, of the upper end of the bottom box, vertically-arranged net plates are slidably connected to the inner side walls of the net boxes, and the upper ends of the net plates are fixedly connected to the lower ends of the protection strips. The upper end of the bottom box is rotationally connected with two vertically-arranged threaded rods, the threaded rods are sleeved with threaded barrels, the threaded barrels are fixedly connected to the lower ends of protective strips, and the inner side walls of the two opposite sides of each protective strip are fixedly connected with a plurality of fixing boxes with openings in one ends. According to the scheme, the threaded cylinder is arranged, so that the protection performance during working can be guaranteed while working of