Height-adjustable windproof bridge deflection measuring device

The utility model relates to the field of bridge deflection measurement, and discloses a height-adjustable and windproof bridge deflection measuring device, which comprises a fixed supporting disc, a fixed chassis, a foot stool supporting rod, a windproof device, an L-shaped bracket, a drop hammer assembly, a dial indicator assembly and a level bubble, and is characterized in that the foot stool supporting rod comprises an upper supporting rod, a sleeve and a lower supporting rod; the upper supporting rod is connected with the lower supporting rod through a sleeve and fixed to the ground or a riverbed, the windproof device comprises light square pipes and rotating bolts, the light square pipes are connected through the rotating bolts, and the drop hammer assembly comprises a steel wire rope, a drop hammer body and a beam bottom fixing structure. According to the bridge deflection measuring device, the height is adjusted by rotating the sleeve to meet the requirements of grounds with different heights, so that