Patent ID: 8641078
Filing Date: 2014-02-04
Classification: A61G

Abstract:
1. A foldable wheelchair comprising: a body having a seat portion; a first support rod being disposed at a back side of the seat portion; a second support rod being disposed at the back side of the seat portion and located opposite the first support rod; a backrest rack being provided with a first support tube swingably disposed on the first support rod, a second support tube swingably disposed on the second support rod, and two backrests connected to the first and second support tubes, respectively, a free end of the first support tube being defined with an elongated through hole; a connecting unit being provided with an inner pipe mounted on an inner peripheral surface of the free end of the first support tube and an inner peripheral surface of a free end of the second support tube, an outer pipe mounted on an outer peripheral surface of the free end of the first support tube and an outer peripheral surface of the free end of the second support tube, and a pulling member, the inner pipe being defined with a threaded hole, the outer pipe being defined with a penetrating hole, the pulling member being provided with a pivoting portion, a pulling portion disposed reverse to the pivoting portion and a screw pivoted to the pivoting portion, the screw being firstly passed through the penetrating hole of the outer pipe and the elongated through hole of the first support tube, and then being threaded in the threaded hole of the inner pipe, such that the first and second support tubes are clamped between the inner pipe and the outer pipe; and a stop device which includes: