Hanging wheel frame, hanging wheel mechanism, hanging wheel device and hanging rail door

The utility model discloses a hanging wheel frame, a hanging wheel mechanism, a hanging wheel device and a hanging rail door. The hanging wheel frame comprises a fixed seat and a hanging wheel seat, the fixed seat comprises a base, an upper mounting frame and a lower mounting frame; a via hole is formed in the upper mounting frame, and a threaded through hole is formed in the hanging wheel seat; the hanging wheel base is installed in the via hole through an adjusting bolt penetrating through the threaded through hole, and the bolt head of the adjusting bolt is located below the upper installation frame. According to the hanging wheel frame, the hanging wheel mechanism, the hanging wheel device and the hanging rail door, after the door body is installed, if the height of the door body needs to be adjusted, the adjusting bolt is screwed to enable the fixing base and the hanging wheel base to move relatively, then the height of the door body is adjusted, the hanging wheel frame does not need to be detached from