Abstract: An information interaction method and apparatus, an electronic device and a storage medium are provided, the method comprising: displaying a preset first special effect element in a virtual reality space; determining whether a spatial relationship between a target control part controlled by a user and displayed in the virtual reality space and the first special effect element meets a preset condition; and in response to determining that the preset condition is met, displaying a second special effect associated with the first special effect element.

Abstract: A paper winding machine is provided. The paper winding machine includes a frame body, wherein a winding roller is installed on the frame body in a horizontal direction, two winding roller adjusting mechanisms are respectively installed at two ends of and inside the winding roller, one end of the winding roller is connected with one end of a first rotating shaft, the other end of the winding roller is connected with one end of a second rotating shaft, the other end of the first rotating shaft and the other end of the second rotating shaft are installed on the frame body via bearing seats respectively, a crank handle is provided at the other end of the first rotating shaft, and a through groove is formed in an outer wall of the winding roller and formed in a length direction of the winding roller.