Advertising device with adjustable width

The utility model discloses a width-adjustable advertising device, which belongs to the field of advertising devices and comprises a first advertising frame, a second advertising frame is arranged on the right side of the first advertising frame, and transparent plates are clamped in the first advertising frame and the second advertising frame. According to the utility model, the threaded rod is rotated, the threaded rod drives the sliding block to move through a threaded structure formed by the threaded rod and the sliding block, and the lines of the two sections of threads at the outer end of the threaded rod are oppositely arranged; the sliding blocks can drive the first advertising frame and the second advertising frame to move close to or far away from each other at the same time, the first advertising frame moves in the telescopic groove, the overall width of the advertising frames can be adjusted, time and labor are saved, disassembly and assembly are not needed, meanwhile, the advertising frames can b