A reduced pressure device includes a housing, an air pressure storage module, a compression module and a pressure indicating module. The air pressure storage module is installed in the housing and the compression module is mounted on the air pressure storage module. The air pressure storage module further includes a piston cover, a piston assembly and a pressure storage main body. The piston cover is mounted on the pressure storage main body and the piston assembly is installed in the pressure storage main body. One end of the pressure indicating module is coupled to the pressure storage main body, and another end thereof is connected to the piston assembly.一種減壓裝置,包含有一外殼、一氣壓儲存模組、一壓桿模組以及一壓力指示模組。氣壓儲存模組安裝於外殼之中,而壓桿模組安裝於氣壓儲存模組之上。氣壓儲存模組更包含有一活塞蓋、一活塞組以及一儲壓容器本體,活塞蓋安裝於儲壓容器本體之上,而活塞組安裝於儲壓容器本體之中。壓力指示模組一端連接儲壓容器本體,另一端連接活塞組。120‧‧‧壓力指示模組230‧‧‧活塞蓋236‧‧‧透明視窗240‧‧‧壓力指示器241‧‧‧固定穿孔242‧‧‧固定開口244‧‧‧指示部246‧‧‧彈性件250‧‧‧活塞組254‧‧‧固定部260‧‧‧儲壓容器本體262‧‧‧儲壓槽264‧‧‧開口268‧‧‧指示器扣合部330‧‧‧眼睛340‧‧‧箭頭
