Self -heating or self -cooling metallic tank

The utility model relates to a self -heating or self -cooling metallic tank, include the metallic tank body and set up at metallic tank body bottom and opening base up, base inside forms container cavity, transversely is provided with the support frame of fretwork in the container cavity, epicoele and cavity of resorption are separated into with container cavity to the support frame, going up theintracavity and being provided with the reaction cup that is used for holding the reaction liquid, reaction cup rim of a cup passes through the film plastic envelope and sets up down on the support frame, and it has the interval in order to form cyclic annular air conduction channel to keep between reaction cup rim of a cup outward flange and container cavity inside wall. 本实用新型涉及种自加热或自冷却金属罐，包括金属罐本体以及设置在金属罐本体底部且开口朝上的底座，所述底座内部形成容器腔，容器腔内横向设置有镂空的支撑架，所述支撑架将容器腔分隔成上腔和下腔；所述上腔内设置有用于容纳反应液体的反应杯，反应杯杯口通过薄膜塑封并朝下设置在支撑架上，反应杯杯口外边缘与容器腔内侧壁间保留有间距以形成环状导气通道。