Patent ID: 9499313
Filing Date: 2016-11-22
CPC Classification: B65D

Claim Text:
1. A cap with a safety device; the cap is rotatably mounted at tubular opening of a packaging container; outer periphery of the tubular opening is provided with ratchet teeth engaging with the cap; wherein the cap comprises a cap body, a safety outer ring and safety pawls; the safety outer ring is fixed at a bottom end of the cap body; the safety pawls are multiple in terms of quantity; the safety pawls are circularly distributed at an inner side of the safety outer ring; each of the safety pawls comprises a fixation end and an engagement end; when the cap is rotated to open, each engagement end engages with a corresponding ratchet tooth of the ratchet teeth and then perform irreversible rotation around its corresponding fixation end; gaps corresponding to the safety pawls are provided on the safety outer ring; the gaps are used for observing the safety awls two sides of each gap on the safety outer ring are raised platforms.