Cap assembly for bottles

Abstract

A cap assembly includes a base member having a tube and a rod. A cap member has an outer engaging tube and an inner engaging tube. A top plate is connected on two respective top ends of the outer engaging tube and the inner engaging tube. The inner engaging tube is inserted into an annular gap between the rod and an inner periphery of the tube and, the rod movably seals an outlet defined in the cap member. A first flange extends from an inner periphery of the outer engaging tube and is stopped by a top flange extending radially outward from a top end of the tube to prevent the cap member from being disengaged from the tube. A cover is mounted on the base member and is connected with the cap member so that users can simply open the cover to pull the cap member upward.

1 . A cap assembly comprising: 
 a base member having a tube extending from a top thereof and a rod located at a center of the tube, a top flange extending radially outward from a top end of the tube, a plurality of connection ribs connected between the rod and a bottom of the tube, an annular gap defined between the rod and an inner periphery of the tube, a plurality of apertures defined between the connection ribs; and    a cap member having an outer engaging tube and an inner engaging tube which shares a common axis with the outer engaging tube, a top plate connected on two respective top ends of the outer engaging tube and the inner engaging tube, an outlet defined through the top plate and located corresponding to the rod, the inner engaging tube inserted into the annular gap of the base member and a lower end of the inner engaging tube located corresponding to the apertures, a first flange extending from an inner periphery of the outer engaging tube and being stopped by the top flange to prevent the cap member from being disengaged from the tube.    
   
   
       2 . The assembly as claimed in  claim 1 , wherein a periphery of the top plate on the cap member forms an annular lip.  
   
   
       3 . The assembly as claimed in  claim 2 , further comprising a cover which has an engaging portion located at an inside of the cover and a stop extends from an inner periphery of the engaging portion, the engaging portion of the cover is mounted on the cap member and the stop is engaged with the annular lip.  
   
   
       4 . The assembly as claimed in  claim 3 , wherein the cover includes an engaging flange extending from an inner periphery thereof and the base member has a groove defined in an outer periphery thereof so that the engaging flange is engaged with the groove.  
   
   
       5 . The assembly as claimed in  claim 3 , wherein a connection strip extends from the cover and is connected with a collar which is adapted to be mounted on a bottle.  
   
   
       6 . The assembly as claimed in  claim 1 , wherein the rod is a solid rod.  
   
   
       7 . The assembly as claimed in  claim 3 , wherein the cover includes a thumb flange extending outward therefrom.  
   
   
       8 . The assembly as claimed in  claim 1 , wherein the top flange has a triangular cross section.