Patent ID: 11958520
Assignee: ZHEJIANG PRIDE LEISURE PRODUCTS CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 4:
5. The foldable cart according to claim 1, wherein the middle fixing seat or the sliding sleeve of the side walls comprises a body and connecting slots extending along front and back sides of the body, and the side cross tubes are riveted in the connecting slots;
or, upper grooves communicating an upper surface with side faces are formed in left and right sides of an upper end of the middle connecting piece of the front wall or the back wall, lower grooves communicating the side faces with a lower surface are formed in left and right sides of a lower end of the middle connecting piece, and the upper horizontal tubes and the sliding connecting tubes are inlaid in the upper grooves and the lower grooves respectively and are riveted.