Magnetic cap assembly and a container using the same

1. A magnetic cap assembly comprising:

an external cap ( 11 ) comprising a ceiling ( 12 ) formed with relatively thin portions ( 122 ), thereby providing cavities;

a holder ( 20 ) comprising:

a tray ( 22 ) inserted in the external cap ( 11 ); and

sockets ( 24 ) formed on the tray ( 22 );

magnets ( 21 ) inserted in the sockets ( 24 ) of the holder ( 20 ) at an end and inserted in the cavities of the relatively thin portions ( 122 ) of the ceiling ( 12 ) of the external cap ( 11 ) at another end, wherein each of the magnets ( 21 ) is sandwiched by the ceiling ( 12 ) and the tray ( 22 ); and

an internal cap ( 30 ) fitted in the external cap ( 11 ), thereby keeping the magnets ( 21 ) in the external cap ( 11 ).

2. The magnetic cap assembly according to claim 1 , wherein the external cap ( 11 ) further comprises at least one wall ( 13 ) extending from the ceiling ( 12 ) so that the external cap ( 11 ) comprises:

an upper space ( 133 ) in the vicinity of the ceiling ( 12 );

a lower space ( 131 ); and

a conical space ( 132 ) comprising a small open end ( 135 ) in communication with the upper space ( 133 ) and a large open end ( 134 ) in communication with the lower space ( 131 ).

3. The magnetic cap assembly according to claim 2 , wherein the internal cap ( 30 ) comprises:

at least one wall ( 31 ′) comprising a space; and

a partition ( 33 ′) formed in the at least one wall ( 31 ′), thereby dividing the space of the at least one wall ( 31 ′) into:

a mass-reducing space ( 34 ) with an upper open end ( 36 ); and

an engaging space ( 35 ′) with a lower open end ( 37 ), wherein the internal cap ( 30 ) keeps the magnets ( 21 ) in the upper space ( 133 ′) of the external cap ( 11 ′) and lower open end ( 37 ) of the internal cap ( 30 ′) becomes a lower open end of the entire magnetic cap assembly ( 10 ) when the internal cap ( 30 ′) is fitted in the lower space ( 131 ) of the conical space ( 132 ).