The invention is applicable to the field of constructional engineering, and provides a liftable support for constructional engineering construction.The liftable support comprises a bottom plate and a construction frame, the construction frame is fixedly connected to the bottom plate, two mounting plates are fixedly connected to the construction frame, the two mounting plates both penetrate through the construction frame, and the two mounting plates are fixedly connected through a connecting column; the feeding device comprises two mounting plates, annular sliding grooves are formed in the opposite side faces of the two mounting plates, a plurality of material boxes are connected between the two annular sliding grooves in a sliding mode, sliding columns matched with the annular sliding grooves are fixedly connected to the side faces of the material boxes, and the feeding device further comprises a driving mechanism connected to the two mounting plates. In the process that the motor drives the material box to be lifted through the conveying belt, the two gears are in meshing transmission with the outer gear ring and the inner gear ring correspondingly, so that the two ends of the material box are stressed, the outer gear ring provides upward supporting force for the material box, the material box is prevented from inclining towards one side, the stability of the material box is kept, and the device is convenient to use.

本发明适用于建筑工程领域，提供了一种建筑工程施工用可提升支架，包括底板和施工架，所述施工架固定连接在底板上，所述施工架上固定连接有两个安装板，两个安装板均贯穿施工架，两个所述安装板之间通过连接柱固定连接，且两个安装板相对的侧面均开设有环形滑槽，两个环形滑槽之间滑动连接有若干个料盒，料盒的侧面固定连接有与环形滑槽相适配的滑柱，还包括：驱动机构，所述驱动机构连接在两个安装板上。电动机通过传送带带动料盒提升的过程中，两个齿轮分别与外齿环和内齿环啮合传动，从而使料盒的两端均受力，则外齿环给予料盒一个向上的支撑力，避免料盒朝一边倾斜，保持了料盒的稳定性，使该装置便于使用。