Child stroller frame

A child stroller frame comprising:

• a first frame portion including a handle frame segment, a front leg segment, and a coupling part that pivotally connects the handle frame segment with the front leg segment;
• a second frame portion pivotally connected with the front leg segment;
• a pivoting part having one end fixedly connected with a wheel support member and another end pivotally connected with the second frame portion;
• and
• a linkage having a first and a second end, and an intermediate portion between the first end and the second end, wherein the first end of the linkage is pivotally connected with the front leg segment, the second end of the linkage is pivotally connected with the pivoting part, and the intermediate portion of the linkage is pivotally connected with the second frame portion, whereby the first frame portion and the wheel support member are movably linked for folding in a concurrent manner toward the second frame portion;
• wherein the second frame portion has two opposite ends, the front leg segment is pivotally connected with the second frame portion at one of the two opposite ends thereof, and the pivoting part is pivotally connected with the second frame portion at the other one of the two opposite ends thereof.