Patent ID: 7832744

Claim:
A stroller comprising: a main frame formed with two supporting frames disposed at two sides of the stroller respectively, the two supporting frames being symmetrical with each other; a seat frame; a backrest disposed between the two supporting frames comprising: a supporting rod structure, one end of which is pivotally connected to the seat frame; and a positioning part disposed on the supporting rod structure, the positioning part being a T-shaped rivet; a backrest adjustor, one end of which is pivotally connected to one of the two supporting frames, having a guide rail being formed in the backrest adjustor for engaging with the positioning part; and a linkage device disposed on the backrest comprising: a handle; a pushing structure sheathing the supporting rod structure in a sliding manner and having a protruding portion, the protruding portion abutting against the backrest adjustor, and a bottom edge abutting against the positioning part when the positioning part engages into a positioning groove of the guide rail; and a connecting component disposed between the handle and the pushing structure for driving the pushing structure to move upward along the supporting rod structure when the handle of the linkage device is moved upward, so that the protruding portion of the pushing structure drives the backrest adjustor to rotate relative to the supporting frame of the main frame so as to release the positioning part from the positioning groove of the guide rail.