Three-sided rollover billboard

The utility model discloses a three-sided rollover billboard, which comprises a drive shaft, blades and connecting shafts which are used for connecting with the blades. At least one group of blades is arranged and each group of blades consists of at least one blade. A dual-triangle drive block is arranged at the lower end each blade. Grooved wheels which correspond to the dual-triangle drive blocks one by one are arranged on the drive shaft. The number of each group of blades is at least two. An axial deflection angle theta is formed between the grooved wheels corresponding to each blade and an adjacent blade at the right end in the same group. The three-sided rollover billboard has the advantages that a drive mechanism is simple and stable and the turnover patterns of the billboard are various.