Anti-floating device for inverted arch template

The utility model provides an inverted arch formwork anti-floating device which comprises two sets of supporting rods, the two sets of supporting rods are arranged along the axes of the supporting rods in a relative sliding mode and connected through an adjusting mechanism, the adjusting mechanism drives the two sets of supporting rods to slide relative to each other, connecting assemblies are arranged on the supporting rods, and the adjacent supporting rods are connected through the connecting assemblies. A wall connecting assembly is arranged at the end of the supporting rod. According to the device, the inverted arch formwork can be effectively prevented from floating upwards, meanwhile, the supporting height of the inverted arch formwork can be adjusted according to the height between different points of the inverted arch formwork and the ground, anti-floating construction can be rapidly conducted without selecting supporting pieces with different lengths, and the construction cost is effectively reduced.