US Patent 11246443 Secure containing device

A secure containing device with an adjustable volume for receiving and safeguarding items includes a bag, a rear cover, a mounting element connected to opposite sides of the bag, a lock assembly on the rear cover and protruding toward the mounting element, and an active element overlapping with the mounting element. When the mounting element moves to a closed position, the bag is compressed. When the mounting element moves to an unfolded position away from the rear cover, the bag presents a containing space. When the mounting element is in the unfolded position, the active element is movable and rotatable relative to the mounting element to cover a top of the bag and engage with the lock assembly.