Rotary hinge module capable of being quickly spliced and inserted

The utility model discloses a rotary hinge module capable of being spliced and inserted quickly. The rotary hinge module comprises two splicing and inserting building blocks, a hinge building block and an angle limiting building block. Each hinged building block is composed of a front side square plate and a rear side square plate. Each angle limiting building block comprises a limiting strip-shaped plate and a rotary limiting octagonal prism; two front side inserting right-angle plates are arranged on the front side surface of the front side square plate, and two rear side inserting right-angle plates are arranged on the rear side surface of the rear side square plate; the limiting strip-shaped plate is installed between the opposite inner side faces of the two front side inserting right-angle plates. The rotary limiting octagonal prism penetrates through the front side square plate and then is inserted into an inner octagonal hole in the center of the rear side square plate. The rotary hinge module can avoi