Falling frame device

The utility model belongs to the technical field of constructional engineering, and particularly relates to a falling frame device which comprises a pressed movable conical core in the middle and movable bases on the two sides, a conical groove matched with the pressed movable conical core is formed between the movable bases on the two sides, and the pressed movable conical core is pressed downwards to drive the movable bases on the two sides to move outwards. The movable base is provided with a fixing assembly so as to limit the movable base to move towards the outer side and fasten the movable base towards the inner side, the falling frame device is simple in structure, low in cost, convenient to construct, use and operate, good in stability, high in strength, convenient to turn over and convenient to dismantle a platform bottom die in the later period, the construction efficiency can be improved, and the construction cost is reduced. The labor cost is reduced. 本实用新型属于建筑工程技术领域，特别涉及一种落架装置，包括中间的受压活动锥芯以及两侧的活动基