Importance

Loading Importance Indicators...

Abstract

The present invention relates to the field of hand trolleys, and specifically, to a bottom support structure of a hand trolley and the hand trolley. The bottom support structure includes a bottom frame and ground wheels. The bottom frame includes one central joint, at least three groups of connection assemblies, and at least three corner joints, one end of each connection assembly is hingedly connected to the central joint, the other end of the connection assembly is hingedly connected to one corner joint, and the corner joint is connected to the ground wheel, so that a foldable structure that is selectively unfolded or folded of the bottom frame is formed. One of the connection assemblies includes a first connection piece and a second connection piece, and when the bottom frame is unfolded, the first connection piece is located on the second connection piece, so that a double-layer structure of the bottom frame is formed. The hand trolley includes the bottom support structure of the hand trolley and a side support disposed on the bottom frame, the side support includes a side rod, and the side rod is a fixed rod with a fixed height.

Loading the Abstract Image...

First Claim