The utility model comprises a container bodyA first closure cap and a second closure cap,The container body has a holding spaceA first opening and a second opening,And the first sealing capThe second closure covers are respectively provided with closing the first opening, andThe first sealing plate and the second sealing plate of the second opening,The first sealing plateThe second sealing plate is respectively provided with the first opening andThe first sealing flange and the second sealing flange of the second opening,The first sealing cover is provided with a card making part,The second sealing plate is provided with a concave part for inserting the clamping part,The concave part has a bottom surface and an inner ring surface,And the inner ring surface is provided with at least one horizontally distributed clamping flange,The shortest distance between the at least one clamping flange and the bottom surface is greater than the height of the clamping part；On this basis,Because the card making part still has a gap after being inserted into the concave part,And the clamping part is clamped in the concave part by the at least one clamping flange,Therefore, it can avoid the sticking problem caused by the size variation after hot expansion and cold contraction.本新型包括一容器本體、一第一封口蓋與一第二封口蓋，其中該容器本體具有一容置空間、一第一開口與一第二開口，而該第一封口蓋、該第二封口蓋分別具有封閉該第一開口、該第二開口的一第一封口板與一第二封口板，該第一封口板、該第二封口板分別具有伸入該第一開口、該第二開口的一第一封口凸緣與一第二封口凸緣，又該第一封口蓋具有一卡制部，該第二封口板具有一供該卡制部插入的凹部，該凹部具有一底面與一內環面，且該內環面具有至少一水平分布的卡制凸緣，並該至少一卡制凸緣至該底面的一最短距離為大於該卡制部的一高度；據此，由於該卡制部插入該凹部後仍具有一縫隙，並該卡制部藉由該至少一卡制凸緣而被卡制於該凹部內，故可避免熱漲冷縮後的尺寸變異所造成的卡固問題。
