Protective device for household power supply

The utility model discloses a household power supply protection device comprising a socket, the upper and lower sides of the socket are respectively provided with a double jack and a three jack, the upper and lower sides in the socket are respectively provided with a first chute and a second chute, the upper side in the first chute is provided with a first guide groove, and the first chute is internally provided with a first baffle plate in a sliding manner. First guide grooves are formed in the upper side of the first baffle, first guide blocks located in the first guide grooves are arranged at the two ends of the upper side of the first baffle, double matching holes identical to the double insertion holes in shape are formed in the first baffle, second guide grooves are formed in the upper side of the second sliding groove, a second baffle is arranged in the second sliding groove, and second guide blocks located in the second guide grooves are arranged at the two ends of the upper side of the second baffle.