Patent ID: 8328032

Claim:
A self-mixing container with a releasable internal vessel, comprising a container body ( 1 ), an external cap ( 2 ) and an internal vessel ( 3 ), wherein different kinds of materials are contained in the container body ( 1 ) and the internal vessel ( 3 ) separately, and said external cap ( 2 ) comprises a cap inner wall ( 12 ) and a cap outer wall ( 11 ), characterized in that, wherein a ratchet ( 5 ) is provided on a suitable position on the outer wall of the internal vessel ( 3 ), and a plurality of pawls ( 4 ) are provided on a position corresponding to the ratchet ( 5 ) on an inner wall of a mouth-neck portion of the container body ( 1 ), wherein an inwardly oblique surface ( 13 ), which faces inwardly with respect to a center portion of the cap, is formed on a lower end face of the cap inner wall ( 12 ), an outwardly oblique surface ( 14 ), which faces outwardly with respect to the center portion of the cap, is formed in a corresponding position above the ratchet ( 5 ) and below a lip of the internal vessel ( 3 ) on the internal vessel ( 3 ), wherein the internal vessel ( 3 ) is abutted tightly against and connected with the external cap ( 2 ) by screwing on a first screw-thread (MI) between an upper portion of an outer wall of the internal vessel ( 3 ) and the cap inner wall ( 12 ), so as to form an assembly by the internal vessel ( 3 ) and the external cap ( 2 ), and when the internal vessel ( 3 ) is abutted tightly against and connected with the external cap ( 2 ) by screwing on the first screw-thread (MI), the inwardly oblique surface ( 13 ) is abutted tightly against the outwardly oblique surface ( 14 ) to enhance sealing performance, and wherein a second screw-thread (MII) having a same screwing direction as the first screw-thread is provided on the cap outer wall ( 11 ) for abutting against and connecting to a mouth of the container body ( 1 ), and wherein said positions of the ratchet and the pawls are configured such that the internal vessel ( 3 ) is prevented from rotating with the external cap due to engagement of the ratchet ( 5 ) with the pawls ( 4 ) when the external cap ( 2 ) is unscrewed from the mouth of the container body ( 1 ) through the second screw-thread (MII), after the assembly is inserted in to the mouth of the container body ( 1 ) and the external cap ( 2 ) is screwed on, thereby unscrewing the internal vessel ( 3 ) from the external cap ( 2 ) through the first screw-thread (MI) and thus separating outwardly oblique surface ( 14 ) on the internal vessel ( 3 ) from the inwardly oblique surface ( 13 ) on the low end face of the external cap ( 2 ) with the internal vessel ( 3 ) dropped into the container body ( 1 ) via gravity.