Excrement plug mechanism for hog house

The utility model relates to the technical field of environmental protection equipment, in particular to an excrement plug mechanism for a hog house, which comprises an excrement plug arranged above an excrement opening and a door-shaped support used for being fixed on a terrace, and the door-shaped support is connected with the excrement plug through a telescopic mechanism. The telescopic mechanism enables the excrement plug to move downwards to seal the excrement opening or move upwards to open the excrement opening through the telescopic action of the telescopic mechanism. The telescopic mechanism is an electric push rod, the fixed end of the electric push rod is fixedly connected with the door-shaped support, and the telescopic end of the electric push rod is fixedly connected with the excrement plug. According to the structure, due to the arrangement of the door-shaped support, the problem that due to the fact that the terrace is uneven, the distance between the terrace and the dung leakage plate is diff