Freeze drying mechanism

The utility model relates to the technical field of preservation, and discloses a freeze drying mechanism which is characterized in that a main body box is provided with a mounting plate, the mounting plate is provided with a placing hole, the mounting plate is provided with a telescopic device, the telescopic device is provided with a movable plate, the telescopic device is provided with a telescopic spring, the movable plate is provided with a long bolt, and the main body box is provided with a motor. According to the freeze-drying mechanism, through cooperation of the movable plate, the telescopic device, the telescopic spring and the long bolt, the problem that in the carrying process of existing test tube medicaments, the test tube medicaments need to be fixed, and the test tube medicaments are inconvenient to carry is solved. Otherwise, the test tube medicament shakes and even is damaged in the transportation process. 本实用新型涉及保存技术领域，且公开了一种冷冻干燥机构，所述的主体箱装配有安装板，安装板设置有放置孔，安装板装配有伸缩装置，伸缩装置装配有活动板，伸缩装置装配有伸缩弹簧，活动