How is the steel shopping cart bottom frame designed to enhance load-bearing capacity?

The design of the steel shopping cart bottom frame plays an important role in enhancing its load-bearing capacity. Here are a few key aspects of bottom frame design:

Material Selection and Thickness: Bottom frames are typically manufactured using high-strength steels that have excellent resistance to compression and bending. Depending on the expected load-bearing needs, different thicknesses of steel can be selected to ensure adequate strength. Thicker steel provides greater support.

Crossbeam and Stringer Design: Crossbeams (lateral supports) and stringers (longitudinal supports) are the primary structural elements of the bottom frame. Cross beams are responsible for dispersing horizontal loads, while longitudinal beams provide longitudinal stability. By rationally arranging crossbeams and longitudinal beams, the load can be effectively distributed across the entire frame, reducing single-point stress and thus improving load-bearing capacity.

Connection and welding: The connection between the cross beam and the longitudinal beam adopts high-strength welding technology to ensure a strong and reliable connection and avoid breakage or loosening during use. Control of welding quality is critical to the strength of the entire bottom frame. Welding should be uniform, defect-free and comply with relevant standards.

Reinforcements and supporting structures: At key stress points, such as the intersections of cross beams and longitudinal beams, reinforcements, such as steel plates or ribs, can be added to enhance the overall strength of the structure. The bottom frame can also be equipped with additional support structures, such as support feet or auxiliary support rods, to improve overall stability and load-bearing capacity.

Optimized design: Through engineering simulation technologies such as finite element analysis (FEA), the design of the bottom frame can be optimized to find the best layout of cross beams and longitudinal beams, material thickness, and connection methods. Optimized design can ensure that the load-bearing capacity is met while reducing material usage and costs.

Together, these design measures ensure that the steel shopping cart has sufficient strength and stability when carrying heavy loads.