Patent attributes
A liquid container includes a container body including an inner space formed to accommodate a liquid therein and an opening formed at a top thereof to allow the liquid to flow into the inner space, an outer cap including a liquid port fastened to the opening and connected to the inner space, an inner cap inserted into the liquid port and fastened to the outer cap to open and close the liquid port to selectively connect the inner space to an outside, and a stopper fastened to the inner cap, protruding in an outward-radial direction to be held by a bottom end of the outer cap to limit a movement distance of the inner cap, and formed of an elastic material to allow the inner cap to be separable from the outer cap by a certain external force applied to the inner cap.