House construction expansion joint structure

The utility model discloses a housing construction expansion joint structure. The device comprises a connecting unit, an expansion joint is connected to the inner side of the connecting unit, a centerplate is connected to the top of the expansion joint, rubber strips are connected to the two sides of the center plate, the expansion joint comprises a sound insulation plate, a fireproof layer, a filling layer, an antirust layer, a waterproof layer and a heat insulation part, and a plurality of protruding strips are connected to the sound insulation plate and are hollow; the thermal insulation effect of the expansion joint can be enhanced through the thermal insulation part, the perlite layer, the rock wool layer, the glass wool layer and the thermal insulation film, indoor and outdoor heatcannot be transmitted rapidly, and therefore the indoor temperature can be kept comfortable. The sound insulation function of the expansion joint can be increased through the sound insulation plate, the through holes and the p