Splicing type tray of mechanical structure

The utility model relates to the technical field of trays, and discloses a mechanical structure splicing type tray which comprises a powerful suction cup, a U-shaped inner plate is fixedly connected to the top of the powerful suction cup, a U-shaped outer plate is movably connected to the inner surface of the U-shaped inner plate in a clamped mode, a middle box is fixedly connected to the top of the U-shaped outer plate, and a clamping groove is formed in the top of the middle box. A support is fixedly clamped to the inner surface of the clamping groove, and a disc body is welded to the top of the support. According to the mechanical structure splicing type tray, a rotary column rotates on the surface of a cross-shaped hollow plate by rotating an adjusting knob, then a rotary disc is linked to rotate, and at the moment, in the process that an arc-shaped hole formed in the surface of the rotary disc rotates along with the rotary disc, a cylinder slidably connected with the arc-shaped hole moves along the arc-s