Abstract: A container cover device having an automatic vacuum function includes a container cover. The container cover is provided with an air extraction mechanism, a vacuum indication assembly, a first switch and a second switch. For the second switch, a control assembly is provided. The first switch and the second switch control the air extraction mechanism to open or close so as to extract the air in the container thorough. The vacuum indication member is to indicate whether the container is in a vacuum state or not for the user to check air leakage. The control assembly automatically controls connection or disconnection of the second switch, so that the air extraction mechanism is automatically started to extract the air in the container when there is air leakage. In this way, the inside of the container can be kept vacuum all the time, providing fresh-keeping and moisture-proof functions.

Abstract: This is a unique design for a steam generator. The heating zone is not only equipped with two sections, vaporizing and steaming, to upgrade the efficiency, but also can be used as a bumper to minimize the back pressure from compressing chamber. The compressing zone is used to compress the vaporizing steam with the pressure for designated service in a restricted room. The inlet is placed at the bottom whereas the outlet at the top. This keeps the water feeding continuous and no water overflowing when the steam generator is not in use. The temperature controller set beside the inlet is used for temperature control as well as the safety protection. The fuse set behind the temperature controller is used to provide the user a more reliable consideration.