Connecting structure for full-prefabricated assembled support-free rigid framework

The utility model discloses a connecting structure for fully prefabricating and assembling a support-free rigid framework, which comprises a lower prefabricated section and an upper prefabricated section, a toothed plate is arranged in the lower prefabricated section and extends out of the upper end of the lower prefabricated section, a toothed groove is arranged in the upper prefabricated section, the extending part of the toothed plate is inserted into the toothed groove, and the toothed plate extends out of the upper end of the lower prefabricated section. And an anti-falling locking piece for locking and fixing the toothed plate and the toothed groove is also arranged in the upper prefabricated section. Structural installation can be completed only by hoisting and leveling equipment on a construction site, construction is simple, convenient and rapid, installation precision is high, secondary cast-in-place of concrete is basically avoided in the construction process, and the problems that grouting is not