Rotating assembly and jigsaw puzzle table

A jigsaw puzzle table, comprising:

• a board portion configured to be selectively placed in either a flat position or a tilted position, the board portion comprising a bottom surface;
• at least two puzzle drawers located below the bottom surface;
• a first pivoting arm connected to the bottom surface of the board portion;
• a main frame located below the board portion and separated from the first pivoting arm;
• and
• an adjusting structure connecting the main frame and the first pivoting arm for adjusting a tilt angle of the board portion;
• wherein when the board portion is in the flat position, the adjusting structure is connected to both the main frame and the first pivoting arm;
• wherein when the board portion is in the tilted position, the adjusting structure remains connected to the main frame and the first pivoting arm;
• and
• wherein a distance between the first pivoting arm and the main frame increases when the board portion is tilted compared to when the board portion is flat.

A rotating assembly comprising:

• a first moving member comprising a first moving frame, a first rolling portion extending from the periphery of the first moving frame, and a first coupling unit extending from the first rolling portion away from the first moving frame;
• a second moving member comprising a second moving frame, a second rolling portion extending from the periphery of the second moving frame, and a second coupling unit extending from the second rolling portion away from the second moving frame;
• and
• a plurality of rotors rotatably mounted between the first rolling portion of the first moving member and the second rolling portion of the second moving member;
• wherein the first rolling portion is symmetrically positioned with respect to the second rolling portion, and each of the plurality of rotors is free to roll on both the first rolling portion of the first moving member and the second rolling portion of the second moving member;
• and
• wherein the first moving frame comprises a first inner portion, a first inclination portion extending at an angle from the periphery of the first inner portion, and a first extending portion extending from the periphery of the first inclination portion away from the first inner portion, the first inner portion being substantially parallel to the first extending portion.