US Patent 10154714 Waterproof container having a lock unit

A waterproof container includes a bag unit, a seat unit, a cover unit and a lock unit. The seat unit is disposed on the bag unit and defines an opening. The cover unit includes a cover, and two zippers dividing the cover into a fixed portion and a flip portion. The lock unit includes a first lock seat disposed on the fixed portion, a second lock seat disposed on the flip portion, and a locking mechanism operable between a locking state, where the locking mechanism engages the first and second lock seats so as to prevent the flip portion from being flipped open, and a releasing state, where the locking mechanism does not engage the first and second lock seats so as to allow the flip portion to be flipped open when the zippers are unzipped.