Fixing pull rod for filling box of prestressed hollow floor slab

The utility model discloses a prestressed hollow floor filling box fixing pull rod which comprises a pull rod body used for enabling a filling box and a formwork to be mutually fixed, a plurality of inserting holes used for allowing the pull rod body to vertically penetrate through are formed in the filling box, and a sharp part used for being inserted into the formwork is arranged at the bottom end of the pull rod body. Threads are arranged on the outer side of the sharp part, and a limiting assembly used for abutting against the upper surface of a filling box is arranged at the top end of the pull rod body. The problem that during concrete pouring, due to the fact that the concrete cushion blocks for fixing the filling box are different in upper stress and lower stress, the concrete cushion blocks are prone to loosening, and construction of the hollow floor slab is affected is solved, and the effect that the situation that the filling box floats upwards during concrete pouring is effectively reduced is achi