Supplementary movable sickbed

The utility model relates to a supplementary movable sickbed, which comprises a bracket, the both sides at support top articulate through bearing retainer respectively has driven cylinder and drivingroll, it is ordered about pivoted transmission caterpillar track by driving roll to be provided with on driven cylinder and the driving roll, be provided with the extension board that is the font of falling U between driven cylinder and the driving roll, the extension board bottom is provided with positive reverse motor, the output of motor is provided with the worm wheel, driving roll's middle part is provided with the worm that the external diameter is less than the driving roll external diameter, this worm and worm wheel meshed. The driving mechanism has the advantages of simple structure and convenient use. 本实用新型涉及种辅助移动病床，包括支架，所述支架顶部的两侧分别通过轴承支架铰接有从动滚筒和驱动滚筒，所述从动滚筒和驱动滚筒上设置有被驱动滚筒驱使转动的传送履带，所述从动滚筒和驱动滚筒之间设置有呈倒凵字形的支板，所述支板底部设置有正反转电机，所述电机的输出端设置有蜗轮，所述驱动滚筒的中部设置有外径小于驱动滚筒外径的蜗杆，该蜗杆与蜗轮相啮合。本装置结构简单，使用方便。