Outline of the work: When brewing tea in the covered bowl involved in the ET360 White Portable Tea Maker, the tea leaves are first placed in the bowl, and then a cover is placed on the bowl opening of the bowl, so that the second convex edge on the lower part of the cover is in contact with the inner wall of the bowl. On the one hand, the first convex edge and the second convex edge play the role of limit matching, aligning the bowl body and the cover body, and on the other hand, through the cooperation of the first convex edge and the second convex edge , play a supporting role, so that the edge of the cover body and the edge of the bowl body have a circular gap for the tea soup to pass through, and a tea hole is set between the first convex edge and the second convex edge, and the user only needs to tilt The tea bowl can make the tea soup flow out from the gap between the cover body and the bowl mouth, and the user does not need to adjust the position of the cover body to filter out the tea soup. Design purpose: Redesign of traditional products to solve the problem that the product is hot to the touch and the opening and closing of filter tea is not easy to control. Design background: Gaiwan is a commonly used tea set for making tea. At present, the most common way to hold the gaiwan is to hold the gaiwan with three fingers, which is called the three-finger method. Hold the side edge of the bowl with the middle finger, leaving a gap between the cover and the bowl, and the tea soup is poured out from the gap, so as to prevent the tea leaves from being poured out with the tea soup. It looks more elegant and soft, but when using a cover bowl to make tea, it is difficult in actual operation because the gap between the cover body and the bowl body needs to be adjusted with the index finger to prevent the tea leaves from being poured out.