Detachable swivel tin chair

A detachable swivel tin chair, comprising a seat (1), chair legs and a tray (3) for connecting the seat (1) and the chair legs, wherein the tray (3) comprises an upper connecting tray (31), a lower connecting tray (32) and a rotating device (33), the rotating device (33) sequentially comprises a first connecting piece (331), a ball bearings and a second connecting piece (332) from top to bottom, and the first connecting piece (331) and the second connecting piece (332) are configured to rotate relative to each other through the ball bearings, the lower connecting tray (32) is fixedly connected below the second connecting piece (332), the upper connecting tray (31) is fixedly connected above the first connecting piece (331), and the seat (1) is fixedly connected to an upper end face of the upper connecting tray (31);

• the chair legs comprise four support legs (2) evenly and fixedly connected to a lower end surface of the lower connecting tray (32), an upper end of the support leg (2) is provided with an arc-shaped folded edge (21), and the arc-shaped folded edge (21) is provided with three first screw holes (211), the three first screw holes (211) are arranged in a triangular shape, and second screw holes (34) corresponding to the first screw holes (211) on the support legs (2) are formed around the lower end surface of the lower connection tray (32), and by arranging bolts in the first screw holes (211) and the second screw holes (34), the support legs (2) are fixedly connected to the lower end surface of the lower connection tray (32);
• a long ring annular reinforcing rib (22) is welded at an inner and/or outer middle and lower sections of each support leg (2), and a connecting plate (5) for fixing a ring-shaped footrest (4) is welded on the middle and lower sections of an inner side of each of the support legs (2), and the connecting plate (5) is provided with a plurality of third screw holes (51), and the ring-shaped footrest (4) is provided with fourth screw holes (41) corresponding to the third screw holes (51), and by arranging bolts in the third screw holes (51) and the fourth screw holes (41), the ring-shaped footrest (4) is fixedly connected to the connecting plate (5).