Bottle cap for storing raw material

Abstract

The invention discloses a material-containing type bottle cap which comprises a lower cap arranged on the bottle opening and an upper cap arranged on the upper part of the lower cap. The bottle cap is characterized in that a material-containing cylinder and the upper cap of a switching cap used for sealing an opening lower end of the material-containing cylinder are provided; the lower cap communicating with a guiding cylinder of the material-containing cylinder is provided; the switching cap forming an annular embedding slot between an outer wall and the inner side of the outer wall is provided; the lower end of the material-containing cylinder is embedded into the embedding slot so as to lead the switching cap to seal the material-containing cylinder; when the upper cap is opened the material-containing cylinder moves upwards and then the lower end of the guiding cylinder presses the upper end of the outer wall of the switching cap so as to lead the switching cap to break away from the lower end of the material-containing cylinder, and then the material in the material-containing cylinder falls into the liquid inside the bottle; the bottom of the embedding slot of the switching cap is covered by a bottom pad; when the upper cap is opened, the upper end of the outer wall of the switching cap is covered by the pad with adequate thickness in the clearance between the lower end of the guiding cylinder and the upper end of the outer wall of the switching cap.

Description

technical field [0001] The present invention relates to a bottle cap, more specifically relates to opening the upper cap so that the powdery or liquid raw materials contained in the upper cap fall into the liquid in the bottle through the lower cap used to seal the bottle to produce a raw material mixed liquid, improving Storage material type bottle cap. Background technique [0002] As a special bottle cap, it is called a raw material storage type bottle cap. Opening the bottle cap allows the powdered or liquid raw materials contained in the cap to fall into the liquid in the bottle to produce a raw material mixed liquid. As such a bottle, there is a bottle cap described in Patent Document 1, for example. [0003] The storage material type bottle cap described in Patent Document 1 (Japanese Unexamined Publication No. 2005-88997), such as Figure 5 As shown in the longitudinal sectional view of , there is an upper cover 60 and a lower cover 70 . [0004] The lower cap 70 ...

AI Technical Summary

Problems solved by technology

[0008] However, for the bottle cap, the airtightness of the switch cover 90 is only maintained by the integrally formed gasket 100 at the bottom of the fitting groove, so the seal between the switch cover 90 and the storage tube 603 and the guide tube 702 is insufficient.

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