Folding cart

A folding cart, comprising a front frame mechanism, a rear frame mechanism, a bottom frame mechanism, a first folding mechanism, and a second folding mechanism, wherein

• the front frame mechanism and the rear frame mechanism are vertically and oppositely arranged, a first horizontal tube and a second horizontal tube are respectively hinged to two ends of the first folding mechanism, the first horizontal tube is hinged to a first side of the front frame mechanism, and the second horizontal tube is hinged to a first side of the rear frame mechanism;
• a third horizontal tube and a fourth horizontal tube are respectively hinged to two ends of the second folding mechanism, the third horizontal tube is hinged to a second side of the front frame mechanism, and the fourth horizontal tube is hinged to a second side of the rear frame mechanism;
• and
• the bottom frame mechanism comprises a first bottom frame assembly and a second bottom frame assembly hinged to each other, the first bottom frame assembly is hinged to the front frame mechanism, and the second bottom frame assembly is hinged to the rear frame mechanism;
• wherein the folding cart further comprises a U-shaped boom, wherein a first end of the U-shaped boom is hinged to the first folding mechanism, a second end of the U-shaped boom is hinged to the second folding mechanism, and the first bottom frame assembly is allowed to abut against the U-shaped boom.