Abstract: Provided is a cup holding assembly and a dental cup dispenser using same, the cup holding assembly including a plurality of holding modules, each has a seat portion and can hold a cup by contacting the cup from a plurality of directions in a mounting space and a rotary plate which has an inner opening overlapping with the mounting space and includes at least one spiral rail coupled to each of the plurality of seat portions in a non-fixed manner, thereby providing a spiral guide path to each of the plurality of seat portions. Each of the plurality of seat portions moves along the spiral guide path according to the rotation of the rotary plate. The plurality of holding modules move in a direction toward or away from the mounting space or the center of the first inner opening according to the movements of the plurality of seat portions.

Abstract: Disclosed is an externally-assembled waterproof side key assembly and a mobile terminal including the same. The mobile terminal includes a terminal main body having a key assembly hole formed at at least a side thereof, and an externally-assembled waterproof side key assembly assembled from an outside of the terminal main body toward an area of the key assembly hole of the terminal main body. The externally-assembled waterproof side key assembly includes a side key having a protruding assembly terminal that is assembled by being inserted into the key assembly hole from the outside of the terminal main body, and a waterproof ring into which the protruding assembly terminal of the side key is inserted, the waterproof ring being disposed in the key assembly hole by being inserted into the key assembly hole from the outside of the terminal main body, and shielding a gap between the protruding assembly terminal and the key assembly hole for waterproof.