Household ball screw type elevator

The utility model discloses a household ball screw type elevator which comprises a motor, a motor base, a ball screw (2), a ball nut (7), a screw box (4) and an elevating platform (11), wherein the ball screw (2) is located inside the screw box (4), a wire guide rail (9) arranged inside the screw box (4) is provided with a sliding block (8), and a connection part II (6) is arranged between the sliding block (8) and the ball nut (7) and connected with the sliding block (8) and the ball nut (7). A connection part I (5) is fixed on the elevating platform (11) and is fixed on the connection part II (6). The household ball screw type elevator will not to up and down when rotating power does not exist, and damage caused by falling off of the household ball screw type elevator is prevented. In addition, the screw, the nut, the guide rail, the sliding block and other parts are all arranged inside the screw box, so that the household ball screw type elevator is not only tidy and beautiful in appearance, but also small