Container cap and container combined with same

Abstract

A container cap which is combined with a container containing a beverage or the like, and a container combined with the container cap. The container cap is combined with a container inlet of a container body. A plurality of close contact portions in contact with the container inlet are formed, and the close contact portions form a closed curve enclosing the container inlet so as to block inflow of external air from the outside into the container body.

1 . A container assembly
 wherein a container cap is combined with a container inlet of a container body and on which a plurality of close contact portions in contact with the container inlet are formed,   wherein the close contact portions form a closed curve enclosing the container inlet so as to block inflow of external air from the outside into the container body.   
     
     
         2 . The container assembly of  claim 1 , wherein plurality of the close contact portions closely contact the container inlet by relative close contact with the container inlet. 
     
     
         3 . The container assembly of  claim 1 , wherein a tight sealing contact portion supported by at least one contact support surface formed on the container inlet is formed on the container cap. 
     
     
         4 . The container assembly of  claim 3 , wherein a skirt part combined with a skirt combining projection formed on the container inlet extends from the lower end of the tight sealing contact portion,
 the contact support surface is formed with the skirt combining projection.   
     
     
         5 . The container assembly of  claim 4 , wherein the skirt part is inserted into a plurality of through-holes formed in the skirt combining projection, or installed beyond an outside of the skirt combining projection. 
     
     
         6 . The container assembly of  claim 3 , wherein at least one deformed groove adjacent to a contact portion contacting the contact support surfaces is formed in the tight sealing contact portion. 
     
     
         7 . The container assembly of  claim 1 , wherein at least one flexibility applying groove is formed in the container inlet, and a pressing contact part is formed in the container cap at a position corresponding to the flexibility applying groove. 
     
     
         8 . The container assembly of  claim 1 , wherein the flexibility applying groove comprises at least one of
 first flexibility applying groove formed in at least one of the inner circumferential surface and the outer circumferential surface of the upper end of the container inlet, and   second flexibility applying groove formed at a position lower than the upper end of the container inlet.   
     
     
         9 . The container assembly of  claim 1 , wherein the container cap comprises
 a body part in close contact with an upper end of the container inlet;   a sidewall part which extends downward from the body part and in which a female screw part that is screw-coupled with a male screw part formed on an outer circumferential surface of the container inlet is formed; and   an inner ring protruding from a bottom surface of the body part and inserted to an inner circumferential surface of the container inlet.   
     
     
         10 . The container assembly of  claim 9 , wherein an auxiliary inner ring is formed between the inner ring and the upper end of the container inlet, and
 the auxiliary inner ring contacts the container inlet when the container cap is combined with the container inlet.   
     
     
         11 . The container assembly of  claim 10 , wherein the container inlet is formed with at least one inner circumferential protruding part on the inner surface of the container inlet which contacts the outer circumferential surface of the inner ring when the container cap is combined with the container inlet. 
     
     
         12 . The container assembly of  claim 11 , wherein at least one inner ring protruding part that protrudes toward an inner circumferential surface of the container cap to contact the inner circumferential surface of the container cap when the container cap is combined with the container inlet is formed on the container cap. 
     
     
         13 . The container assembly of  claim 1 , wherein a middle ring inserted to a recessed groove having a circular shape formed on the upper end of the container inlet and formed on the bottom surface of the body part to form at least one close contact portion when the container cap is combined with the container inlet is formed on the container cap. 
     
     
         14 . The container assembly of  claim 13 , wherein an inner upper end is lower than an outer upper end based on the recessed groove in the upper end of the container inlet. 
     
     
         15 . The container assembly of  claim 1 , wherein at least one of an inner upper end and an outer upper end of the container inlet has a curved outer circumferential surface, and
 an inclined surface in contact with the curved outer circumferential surface when the container cap is combined with the container inlet is formed on the container cap.