The utility model relates to the field of hollow floor systems, and particularly discloses a hollow floor
system structure which comprises a hollow floor
system, a bottom woven steel mesh is arranged at the bottom of the hollow floor
system, longitudinal ribs are installed above the bottom woven steel mesh in an array mode, transverse stirrups are installed on the inner sides of the upper ends of the longitudinal ribs, and the transverse stirrups are arranged on the inner sides of the lower ends of the longitudinal ribs. A positioning mechanism is arranged on the outer side of the transverse
stirrup, the positioning mechanism comprises an L-shaped positioning
insertion rod and an installation clamping sleeve, a swing stop lever is installed on the outer side of the end, close to the installation clamping sleeve, of the L-shaped positioning
insertion rod, and limiting stop levers are arranged at the positions, located at the two side ends of the installation clamping sleeve, of the side surface of the transverse
stirrup. The L-shaped positioning
insertion rod is rotated towards the interior of the cavity, so that the
elbow part faces downwards, and the positioning round hole corresponds to the position of the L-shaped positioning insertion rod by controlling the fine adjustment position of the whole mold core block in the cavity, so that the limited adjustment of the internal mounting position of the mold core block is ensured.