Cart capable of being folded without elevating cart frame and provided with connecting poles

A cart capable of being folded without elevating a cart frame and provided with connecting poles, comprising:

• a cart frame and casters mounted at a bottom of the cart frame, wherein the cart frame comprises four vertical poles, vertical folding frames located at front and rear ends of the cart frame and hinged to the vertical poles, and a plurality of pairs of bottom folding frames and horizontal folding frames hinged to the vertical poles;
• wherein the cart frame is folded by folding the vertical folding frames, the bottom folding frames and the horizontal folding frames;
• and
• wherein the cart frame further comprises a plurality of connecting poles located on two sides of the cart frame, and adjacent said horizontal folding frames and bottom folding frames are hinged to the connecting poles;
• a plurality of fixing blocks are mounted at top ends of the vertical poles and top ends of the connecting poles;
• a plurality of movable sliders are arranged on the vertical poles and the connecting poles, lower ends of outer sides of the horizontal folding frames and the vertical folding frames are hinged to the sliders;
• wherein upper ends of the outer sides of the horizontal folding frames and the vertical folding frames are hinged to the fixing blocks;
• and
• wherein the sliders slide vertically to drive the horizontal folding frames and the vertical folding frames to be folded or unfolded.