Opening and closing device of rotating cage type jukebox disc tray

An opening and closing device of rotating cage type jukebox disc tray, comprising a disc tray, a mounting shaft and a jukebox manipulator, wherein one end of the disc tray is mounted on the mounting shaft, a mating surface between the disc tray and the mounting shaft is provided with a positioning structure, and the other end of the disc tray carries a disc;

• the mounting shaft is mounted on an outer circumference of a jukebox rotating cage and is parallel to a rotating shaft of the jukebox rotating cage, the jukebox manipulator is mounted on a manipulator driving unit of which a moving direction is parallel to a geometric axis of the rotating shaft;
• a side of the manipulator driving unit is provided with an optical drive, the jukebox manipulator is provided with a driving plate structure and the disc tray is provided with a driving lever;
• when the jukebox rotating cage rotates in a given direction, the driving plate structure on the jukebox manipulator can stop the driving lever on a targeted disc tray, enabling the disc tray to revolve around the rotating shaft of jukebox rotating cage and meanwhile enabling the disc tray to rotate around the mounting shaft;
• a side of the jukebox rotating cage is provided with an in-place bumping post and a return bumping post;
• and with the assistance of in-place bumping post, the positioning structure provided at the mating surface between the disc tray and the mounting shaft can locate a rotation of disc tray at a fixed static angle.