Connecting assembly for connecting boards

1. A connecting assembly for connecting boards, comprising a rod member and a buckle member; the rod member including a head portion, a rod body and a tip portion which are integrally formed and connected in sequence, the head portion having an outer diameter greater than that of the rod body, the rod body being formed with an annular engaging groove, the annular engaging groove being disposed close to the tip portion; the buckle member being formed with an engaging hole penetrating through a circumferential side of the buckle member, the buckle being configured such that a diameter of the engaging hole is resiliently enlarged by insertion of the tip portion to allow the tip portion to pass through the engaging hole and thereafter to resiliently return to a diameter that is less than that of the tip portion so as to become engaged with the annular engaging groove of the rod member; wherein the tip portion of the rod body has a cross-shaped structure.

2. The connecting assembly as claimed in claim 1 , wherein two ends of the annular engaging groove are formed with curved surfaces respectively, two ends of the engaging hole are formed with curved stepped surfaces respectively, and the curved stepped surfaces are mated with the corresponding curved surfaces.

3. The connecting assembly as claimed in claim 1 , wherein an outer end surface of the buckle member has a cross-shaped groove which is provided with an indicating arrow.