And lofting mechanism is used for positioning and binding steel bars on cast-in-place floor slab bottom template

The invention discloses a lofting mechanism for positioning and binding reinforcing steel bars on a cast-in-place floor slab bottom template. The lofting mechanism solves the problems that lofting operation is time-consuming and labor-consuming, and lofting grids are not uniform in an existing lofting mechanism and lofting method. A simple lofting hand-push roller is made of discarded thin iron sheets and thick iron wires on a construction site, the diameter of the hand-push roller can be adjusted, the circumferential circumference of the hand-push roller is changed by adjusting the diameter of the hand-push roller, the circumference is equal to the distance between binding steel bars of a cast floor plate, and a guiding rule is arranged on a push handle of the hand-push roller. The straightness of the paying-off mark points is controlled through the abutting connection of the guiding rule and the side wall body side template on the side of the bottom template, so that the equidistantsteel bar positioning mar