Portable party building propaganda and display device

The utility model discloses a portable party building propaganda display device in the technical field of display devices, which comprises a box body, a cavity with an upward opening is arranged at the top of the box body, a shear fork is arranged in the cavity, a connecting rod is hinged on a rod body of the shear fork, a support plate is welded at the top end of the shear fork, and special-shaped grooves are uniformly arranged at the upper end and the lower end of the bottom of the support plate. Clamping cavities are formed in the left end and the right end of the supporting plate, fixing blocks are installed in the clamping cavities, circular grooves are formed in the bottoms of the fixing blocks, damping rotating shafts are fixedly installed on the inner side cavity walls of the left end and the right end of the bottom of the cavity and connected with telescopic rods, and the special-shaped grooves are evenly formed in the upper end and the lower end of the top of the box body. According to the utility m