Traction type household elevator with underlying drive main engine

A traction type household elevator with an underneath-arranged drive main machine comprises a top rack and a bottom rack which are arranged up and down, backpack frame guide rails and counterweight iron guide rails are arranged between the top rack and the bottom rack, a backpack frame capable of sliding up and down is arranged between the backpack frame guide rails, and counterweight iron capable of sliding up and down is arranged between the counterweight iron guide rails; a motor is arranged on the bottom rack, and a counterweight iron guide wheel and a backpack frame guide wheel are arranged on the top rack; a steel belt is wound on the motor traction wheel, and one end of the steel belt extends upwards to the counterweight iron guide wheel and then reversely extends to the upper portion of the counterweight iron through the counterweight iron guide wheel to be connected with the counterweight iron. And the other end of the steel belt extends upwards to the backpack frame guide wheel, and reversely extend