Container cap and container having same coupled thereto

A container cap comprising:

• a body part coupled to a container inlet of a container containing contents and having an opening at an upper side thereof;
• a cover part coupled to the body part to open and close an upper opening of the body part;
• and
• a separation part integrally connected to the cover part by a first connection part and integrally and separably connected to the body part by a second connection part,
• wherein the second connection part is separated by a user's manipulation so that the cover part is separable from the body part,
• wherein the separation part connects the body part to the cover part in a vertical direction,
• wherein a first member is provided with a fixing part for fixing the separation part after the separation part is separated from a second member,
• wherein the container cap is made of plastic material, and the first connection part is formed as a thin film, and the second connection part is formed as a cut groove or a plurality of bridges,
• wherein the separation part is fitted into the fixing part so as to be fixed to the fixing part,
• wherein the fixing part comprises one or more second fitting parts formed on an outer circumferential surface of the first member and fitted with one or more first fitting parts provided in the separation part,
• wherein the first connection part is vertically folded and the separation part is coupled to the fixing part,
• wherein in the body part, a concave groove having a shape corresponding to a front shape of the separation part is formed to be recessed, and
• wherein the cover part includes an inner ring which protrudes from a bottom surface and is inserted into an inner circumferential surface of the container inlet in order to increase a sealing force of the container.