Connecting device

A connecting device for interconnecting a vertical tube and a plurality of display cabinets for carrying display modules, the vertical tube including a plurality of vertical outer surface portions, said connecting device comprising:

• a first connecting frame adapted for mounting the display cabinets thereon, adapted to be disposed in front of the vertical tube, and adapted to abut against a front one of the outer surface portions of the vertical tube that faces the display cabinets;
• a second connecting frame spaced apart from said first connecting frame along a front-rear direction, adapted to be disposed behind the vertical tube, and adapted to abut against a rear one of the outer surface portions of the vertical tube that faces away from said first connecting frame;
• and
• a fastening unit including two first fastening sets and a plurality of second fastening sets, said first fastening sets being spaced apart from each other along a left-right direction transverse to the front-rear direction and fastening said first connecting frame securely to said second connecting frame so as to clamp the vertical tube between said first connecting frame and said second connecting frame, said second fastening sets being adapted to fasten the display cabinets securely to said first connecting frame.