Two-Tier Cart With Folding Mechanisms For Classified Storage
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Solution Overview
Problem
Existing foldable carts are inconvenient for classified placement of articles and cannot accommodate articles with large or irregular sizes.
Innovation Solution
A two-tier cart design featuring a first and second bottom support mechanism, folding mechanisms, and a rear frame mechanism, allowing for classified placement and accommodating larger or irregularly sized articles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single-tier cart structure is used, then the cart structure is simple, but articles cannot be classified placed and large/irregular items cannot be accommodated
Solution Approach 1:
The cart body is divided into two distinct tiers: a first tier for large/irregular items and a second tier for small items. This segmentation allows different types of articles to be classified placed according to their size and shape requirements, resolving the contradiction between versatility and structural simplicity.
Solution Approach 2:
The cart transitions from a single horizontal plane to a two-level vertical structure. By adding the vertical dimension through the second tier positioned above the first tier, the cart can accommodate both large/irregular items on the lower level and small items on the upper level, enhancing versatility without excessive complexity.
2Volume of moving object
If the cart is designed as foldable, then storage space is reduced, but the folding mechanism becomes more complex
Solution Approach 1:
The folding mechanisms of the first and second tiers are integrated into a unified folding system. When the cart is folded, both tiers collapse together in a coordinated manner, allowing the entire cart to be compacted into a small volume while using a relatively simple combined folding mechanism rather than separate complex mechanisms for each tier.
3Ease of operation
If a two-tier structure is added for classified placement, then article organization improves, but the cart height increases
Solution Approach 1:
The cart height is made dynamic through the foldable design. When the cart is in use, it maintains a functional two-tier height for organized article placement. When folded for storage, the height is reduced to a compact dimension. This dynamic adjustment allows the cart to accommodate the height requirement for classified placement during operation while minimizing height during storage.
Data Source
AI summary
A two-tier cart includes a first column, a second column, a third column, a fourth column, a first bottom support mechanism, a second bottom support mechanism, and a plurality of folding mechanisms. The first column, the second column, the third column and the fourth column are rectangularly arranged at intervals, and lower ends thereof are all connected to the first bottom support mechanism, one folding mechanism is connected between two adjacent columns, and the folding mechanisms are capable of being folded and contracted. The first column, the second column, the third column and the fourth column are all connected to the second bottom support mechanism, the second bottom support mechanism is located above the first bottom support mechanism, and the first bottom support mechanism and the second bottom support mechanism are both capable of being folded and contracted upward.