The present invention relates to a connecting mechanism, which is a connecting mechanism for setting an electric balancing vehicle set on a wheelchair to drive a wheelchair by the power of the electric balancing vehicle; the connecting mechanism of the present invention includes at least two chassis strut and a horizontal cross. a rod, an outer sleeve, and a set of rings; whereby the connecting mechanism of the present invention is connected to the electric body of the electric balance vehicle by a connecting mechanism at the front or the rear of the wheelchair, so as to allow the wheelchair to be used as a supporter or a wheelchair. The occupants can use the electric drive mode of the electric balance car to drive the wheelchair forward or backward, and indeed achieve the main advantages of automatically providing the power of the wheelchair to travel and saving manpower output.本創作有關於一種連接機構,是一種將電動平衡車組設於輪椅上以藉由電動平衡車之動力帶動輪椅行進之連接機構;本創作之連接機構係至少包括有二底盤支桿、一橫桿、一外套管,以及一套環;藉此,本創作之連接機構係藉由在輪椅的前方或後方以連接機構連接電動平衡車之硬體設計,以讓推輪椅之輔助者或乘坐輪椅之乘坐者可利用電動平衡車之電力驅動方式帶動輪椅前進或後退,確實達到自動提供輪椅行進之動力,以及節省人力輸出等主要優勢。