House building expansion joint structure with good waterproofness

The utility model relates to building construction, in particular to a housing construction expansion joint structure with good waterproofness. Comprising waterproof plates, the waterproof plates are arranged at the upper ends of wall bodies on the two sides of the expansion joint, movable grooves are formed in the adjacent ends of the top faces of the wall bodies on the two sides, connecting plates are arranged in the movable grooves in the two sides of the expansion joint, the connecting plates are in threaded connection with the waterproof plates, and fixing strips are arranged on the bottom faces of the connecting plates; movable plates are attached to the inner side faces of the walls on the two sides of the expansion joint respectively, the upper ends of the movable plates are slidably connected with the connecting plate, elastic arc-shaped plates are arranged on the bottom faces of the two movable plates, a plurality of limiting rods are fixedly connected to the bottom face of the fixing strip, the low