Double-Decker Folding Wagon for Compact Storage and Easy Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing collapsible wagons have small capacity, large folded volume, and are inconvenient for users to pick up items stacked together.
Innovation Solution
A double-decker wagon design with four spaced rectangular standing posts, side folding mechanisms, upper and lower bottom support mechanisms, and a sliding sleeve to maintain horizontal height during folding, allowing for classified item placement and reduced folded volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a single-decker wagon is used, then the structure is simple, but the capacity is small and folded volume is large
Solution Approach 1:
The patent transitions from a single-decker to a double-decker structure, adding a vertical dimension to increase capacity. The upper deck is supported by standing posts and folding mechanisms, creating two levels of storage space while maintaining compact folded dimensions through the collapsible design of the support structures.
Solution Approach 2:
The wagon structure is divided into separate functional segments: four standing posts, four side folding mechanisms, an upper bottom support mechanism, and a lower bottom support mechanism. Each segment can fold independently, allowing the overall structure to collapse to a compact form while maintaining large open capacity when deployed.
2Ease of operation
If a single-decker wagon is used, then the structure is simple, but it is inconvenient for users to pick up items stacked together
Solution Approach 1:
By adding a second deck vertically above the first deck, the patent creates separate access levels for different types of items. Users can place frequently accessed items on the lower deck and less frequently accessed items on the upper deck, improving organization and ease of retrieval without requiring complex reconfiguration mechanisms.
3Volume of stationary object
If collapsible mechanisms are added to reduce folded volume, then the folded volume is reduced, but the device complexity increases
Solution Approach 1:
The patent combines multiple folding functions into integrated mechanisms. The side folding mechanisms simultaneously fold the side walls and adjust the standing post positions, while the upper and lower bottom support mechanisms coordinate to collapse both decks. This merging reduces the number of separate components and simplifies the overall folding operation despite the complex multi-level structure.
Data Source
AI summary
A double-decker wagon is provided. The double-decker wagon includes four spaced rectangular standing posts, four side folding mechanisms each sequentially hinged between two adjacent standing posts, an upper bottom support mechanism, and a lower bottom support mechanism, where the standing posts each are provided with a first fixing member, a second fixing member, and a third fixing member in sequence from top to bottom; a sliding sleeve is provided in a sliding manner between the fixing member and the second fixing member; the side folding mechanism is hinged to the sliding sleeve and the first fixing member on the standing post; the upper bottom support mechanism is hinged to the second fixing members on the four standing posts; and the lower bottom support mechanism is hinged to the third fixing members on the four standing posts.