Foldable Cart Segmented Frame for Compact Storage and Strength
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing foldable carts are inconvenient to operate, lack structural strength, and have large packaging sizes, making them cumbersome to carry and store.
Innovation Solution
A foldable cart design featuring a pulling rod assembly, a foldable cart frame with inverted U-shaped frames, and adjustable wheels, allowing for easy folding and unfolding, and minimizing packaging size through retractable components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the cart is designed to be foldable for compact storage, then the packaging size is reduced, but the structural strength is compromised
Solution Approach 1:
The cart frame is divided into multiple segments including front frame, rear frame, and bottom supporting assembly that can fold relative to each other. The fence assemblies are also segmented and can be folded independently. This segmentation allows the cart to collapse into a compact form while maintaining structural integrity through the connection mechanisms between segments.
Solution Approach 2:
The foldable design allows the rear frame to be nested within or adjacent to the front frame when folded, and the bottom supporting assembly folds to nest components together. This nesting arrangement minimizes the overall packaging volume while preserving the strength of individual structural components.
2Quantity of substance
If the cart frame is made large to provide sufficient storage space, then the carrying capacity is improved, but the portability and ease of storage deteriorates
Solution Approach 1:
The cart employs dynamic folding mechanisms that allow the frame to transition between an expanded configuration for maximum storage capacity and a collapsed configuration for easy portability. The bottom supporting assembly and fence assemblies can be folded dynamically to reduce size while maintaining structural integrity.
3Reliability
If the cart is designed with fixed casters for stability, then the reliability is improved, but the adaptability to different terrains and usage scenarios deteriorates
Solution Approach 1:
The cart is designed with universal casters that can rotate 360 degrees and accommodate different terrains. The folding mechanism itself provides multi-functionality, allowing the cart to serve both as a stable shopping cart when unfolded and as a compact storage solution when folded. The design universally addresses both stability and adaptability requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The cart is convenient to operate, flexible in use, compact in size after folding, and maintains high structural strength, offering ease of storage and transportation with a large capacity.
Implementation Method 1
the bottom supporting assembly comprises a front supporting frame and a rear supporting frame which are pivoted together
Implementation Method 2
a folding mechanism for folding the cart frame is arranged at two ends of the middle rod
Implementation Method 3
a plurality of wheels connected to the cart frame
Implementation Method 4
Each cart comprises a cart frame, a plurality of casters and a pair of bearings
Data Source
AI summary
The foldable cart has a pulling rod assembly, a foldable cart frame, a plurality of wheels and a storage bag. The foldable cart frame has a front frame, a rear frame, two foldable fence assemblies and a foldable bottom supporting assembly. A front connecting bar is connected to a bottom of the front frame, and a bottom end of the pulling rod assembly is rotatably connected to a middle portion of the front connecting bar. The number of the wheels is four, two wheels are a pair of front universal wheels and two wheels are a pair of rear directional wheels, the two front universal wheels detachably connect to the front connecting bar; the rear frame has a pair of mounting blocks disposed on a bottom of the rear frame, and each rear directional wheel detachably connects to a corresponding mounting block.