Pulley mounting structure, slide door and shower room

A pulley mounting structure, comprising a pulley assembly and a slide rail, wherein the slide rail has a top part, a bottom part, and an opening between the top part and the bottom part;

• the pulley assembly comprises a support body and a pulley, the pulley is rotationally mounted on the support body, the pulley is inserted into the slide rail through the opening and in sliding fit with the bottom part of the slide rail;
• the support body is provided with a limit part, the support body is configured to be rotatable from an initial mounting position to a working position relative to the slide rail around a central axis of the pulley, so that the limit part is able to at least partially enter the slide rail in the initial mounting position and be rotated to face the top part of the slide rail in the working position, the limit part is configured to be able to abut against the top part of the slide rail in the working position to restrict the pulley from disengaging from the opening of the slide rail.