Tamperproof double cap capable of adding additive

Abstract

A tamperproof double cap, capable of being used to add an additive, comprises: a lower cap, which is coupled to close the mouth of a beverage container, is provided with an additive storage cavity in the middle thereof, and has a hinge split notch in the bottom of the storage cavity; and a press cap, which is fitted into the storage cavity, and separates the hinge split notch when pressed. The lower cap is provided with first and second lips formed on the upper end of the storage cavity holding a tubular part of the press cap, and has vertical ribs protruding from the inner wall of a cavity tube defining the storage cavity at regular intervals. The press cap includes grooves formed in the tubular part so as to vertically move along ribs of the lower cap, and an external press thread in the upper outer circumference thereof so as to apply a vertical movement force. An upper cap encloses the press cap and the first and second lips, and includes an external thread, which is screwed with the external press thread and vertically moves the press cap when rotated.

1 . A tamperproof double cap capable of being used to add an additive, comprising:
 a lower cap, which is coupled to close a mouth of a beverage container, includes first and second lips formed in an upper end of a cavity holding a tubular part of a press cap, in a middle of which an additive storage hole is formed;   the press cap, which includes grooves formed in the tubular part so as to vertically move along ribs of the lower cap, and an external press thread in an upper outer circumference thereof so as to apply a vertical movement force; and   an upper cap, which encloses the press cap and the first and second lips, and includes an external thread, which is screwed with the external press thread and vertically moves the press cap when rotated,   wherein the first lip is provided with a press threaded hook for screw coupling at an intermediate part of an outer surface thereof, the upper cap is provided with a threaded hook, corresponding to the press threaded hook, so as to be partly screwed with the press threaded hook, and the first lip has a rotation space, which is not screwed, above the intermediate part of the outer surface thereof, so that sealability is secured by fastening force when the lower cap is coupled with the upper cap, and so that the additive falls down into the container when the lower cap is released from the upper cap.   
   
   
       2 . The tamperproof double cap according to  claim 1 , wherein:
 the lower cap includes a cavity tube, which makes it possible to contain the additive, and a bottom of which is formed as a circular bottom plate, which is separated by a split hole, except for a part connected with a hinge bar;   the circular bottom plate includes a hook, which prevents movement thereof into the cavity tube, on an outer circumference thereof; and   the cavity tube is provided with a stopper, which corresponds to the hook, so as to maintain an initially coupled state at a lower end thereof.   
   
   
       3 . The tamperproof double cap according to  claim 2 , wherein the circular bottom plate includes an injection hole for injecting the additive at a center thereof, and is coupled with a sealing film for sealing on a lower surface thereof. 
   
   
       4 . A tamperproof double cap capable of being used to add an additive, comprising:
 a lower cap, which is coupled to close a mouth of a beverage container, includes a cavity tube having first and second lips formed on an upper end of a cavity holding a tubular part of a press cap, in a middle of which an additive storage hole is formed, and is provided with a crush part, on a bottom of the cavity tube, having ribs tearing off a thin bottom plate when the press cap is lowered and through-holes through which an additive drops;   the press cap, which includes grooves formed in the tubular part so as to enable vertical movement of the press cap, and an external press thread on an upper outer circumference thereof so as to apply a vertical movement force, and the bottom plate, which is torn off when coming into contact with the crush part, on a bottom of the tubular part; and   an upper cap, which encloses the press cap and the first and second lips, and includes an external thread, which is screwed with the external press thread and vertically moves the press cap when rotated,   wherein the first lip is provided with a press threaded hook for screw coupling in an intermediate part of an outer surface thereof, the upper cap is provided with a threaded hook, corresponding to the press threaded hook, so as to be partly screwed with the press threaded hook, and the first lip has a rotation space, which is not screwed, above the intermediate part of the outer surface thereof, so that sealability is secured by fastening force when the lower cap is coupled with the upper cap, and so that the additive falls down into the container when the lower cap is released from the upper cap.   
   
   
       5 . The tamperproof double cap according to  claim 1 , wherein:
 the lower cap includes an auxiliary shoulder at an interface between the first and second lips thereof,   the auxiliary shoulder includes a sealing groove; and   the sealing groove is sealably coupled with an end of an inner threaded tube, which is screwed with the press cap at the upper cap.   
   
   
       6 . The tamperproof double cap according to  claim 4 , wherein:
 the lower cap includes an auxiliary shoulder at an interface between the first and second lips thereof,   the auxiliary shoulder includes a sealing groove; and   the sealing groove is sealably coupled with an end of an inner threaded tube, which is screwed with the press cap at the upper cap.