Atomization device and atomization equipment

The embodiment of the utility model provides an atomization device and atomization equipment. The atomization device comprises a shell, the shell comprises a liquid storage bin used for containing an atomization matrix, the liquid storage bin is provided with a liquid injection hole, and the atomization matrix is added into the liquid storage bin through the liquid injection hole; the convex rib part protrudes from the hole wall of the liquid injection hole on the first side in the radial direction in the circumferential direction; the air leakage grooves are respectively arranged to axially penetrate through the convex rib parts; the supporting piece is arranged to seal the liquid injection hole and comprises an annular protruding part which is arranged to be matched with the second side, in the radial direction, of the hole wall of the liquid injection hole so as to at least seal the liquid injection hole; and the at least one exhaust groove extends from the free end of the supporting piece to the annular p