Child Stroller Frame

A child stroller frame comprising:

• a push rod assembly comprising a lower end;
• a front support rod comprising an upper end and a lower end;
• a rear support rod comprising an upper end and a lower end;
• wheels connected to the front rod and the rear support rod respectively;
• a connecting seat fixed at the upper end of the rear support rod;
• a first connecting portion fixed at the upper end of the front support rod;
• a second connecting portion fixed at the lower end of the push rod assembly;
• a seat assembly comprising a seat part;
• a connector, which is capable of being detachably connected to the seat assembly, is provided on an inner side of the connecting seat;
• and
• a linkage rod provided between the first connecting portion and the second connecting portion, wherein the linkage rod is pivotally connected to the first connecting portion and the second connecting portion and is capable of driving the front support rod to rotate toward the rear support rod when the push rod assembly is rotated and folded with respect to the rear support rod, wherein the first connecting portion and the connecting seat are pivotally connected around a first axis, the second connecting portion and the connecting seat are pivotally connected around a second axis, wherein a first end of the linkage rod is connected to the first connecting portion around a third axis, and a second end of the linkage rod is connected to the second connecting portion around a fourth axis, wherein the first connecting portion and the second connecting portion are both provided with locking positions, and the connecting seat is provided with a locking member that is arranged to slide with respect to the connecting seat and lock or disengage with each locking position at the same time, wherein the locking member is provided with a first unlocking part exposed on the connecting seat and is capable of being pushed by the seat part of the seat assembly when the seat assembly is rotated and folded forward toward the front support rod, so that the locking member is disengaged from the locking positions, wherein a first reset spring, which is arranged to push the locking member to reset, is provided between the locking member and the connecting seat.