An assembled chassis for electric walk-substituting vehicle comprises a front chassis unit, a rear chassis unit detachably combined with the front chassis unit, a positioning unit for positioning the front and rear chassis units, a hook-joining unit for hook-joining with the front and rear chassis units, and a cushion unit between the front and rear chassis unit. The cushion unit includes a first cushion mechanism supported between the front and rear chassis units and near the hook-joining unit. A support rod supported on the front chassis unit and the first cushion mechanism on the retain seat of the rear chassis unit may be used to eliminate the clearance between the front and rear chassis units combined with each other, so that the member combination between the positioning unit and the hook-joining unit can be more robust and further improve the connection of the front and rear chassis units and reduce the abrasion to increase the overall service life.一種電動代步車的組合車架包含一前車架單元、一可拆卸地結合於該前車架單元上的後車架單元、一用以定位該前、後車架單元的定位單元、一用以勾付結合該前、後車架單元的勾付單元,及一位於該前、後車架單元之間的緩衝單元。該緩衝單元包括一頂撐於該前、後車架單元之間且鄰近該勾付單元的第一緩衝機構。利用頂撐於該前車架單元之支撐桿,與該後車架單元之固定座上的第一緩衝機構,以消除相互結合之前、後車架單元間的間隙,使該定位單元與勾付單元之構件間的結合更加穩固,進而改善前、後車架單元的結合性,並降低磨耗以提高整體使用壽命。2...組合車架3...前車架單元31...前底座32...支撐桿4...後車架單元41...後底座42...固定座421...立管422...樞軸423...連接管424...補強件425...第一結合柱426...第二結合柱5...定位單元51...橫桿52...限位件6...勾付單元61...勾付座62...勾付搖臂機構621...勾付臂622...連接板623...導引板64...軸向鎖合件7...輔助結合單元71...夾制座72...定位螺絲73...定位孔8...緩衝單元81...第一緩衝機構811...第一安裝架812...第一橡膠塊82...第二緩衝機構821...第二安裝架822...第二橡膠塊
