Portable Folding Wagon With Damping for Uneven Terrain
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Solution Overview
Problem
Carrying camping gear and supplies over uneven terrain is cumbersome and potentially damaging to items due to lack of adequate support and shock absorption in conventional carts.
Innovation Solution
A portable folding wagon with damping elements, a foldable load-bearing frame, and telescopic handle, featuring X-shaped metal support rods and universal wheels for improved stability and shock absorption, allowing easy transportation of goods over rugged terrain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional carts are used to transport camping gear, then transportation capability is provided, but shock absorption is insufficient causing items to be damaged on uneven terrain
Solution Approach 1:
The patent applies beforehand cushioning by incorporating damping elements (springs and shock absorbers) between the wheel components and the load-bearing bottom frame. These damping elements are pre-installed to cushion shocks and vibrations before they can damage the transported items, directly resolving the technical contradiction between reliability and harmful factors from uneven terrain
2Ease of operation
If non-foldable carts are used, then structural stability is maintained, but portability and storage convenience are reduced
Solution Approach 1:
The patent applies segmentation by dividing the cart frame into foldable components, specifically the load-bearing bottom frame and main frame, which can be disassembled into smaller segments. This allows the cart to be folded for portable storage while maintaining structural stability when assembled, resolving the contradiction between ease of operation and structural stability
Solution Approach 2:
The patent applies dynamics by designing the frame with movable joints and foldable connections that allow the structure to transition between extended (stable for use) and folded (compact for storage) states. This dynamic design enables the cart to adapt between requiring structural stability during use and requiring compactness for portability
3Stability of the object's composition
If simple wheel arrangements are used, then device complexity is reduced, but stability on uneven terrain is insufficient
Solution Approach 1:
The patent applies local quality by differentiating the wheel components - using universal wheels at the front that can rotate 360 degrees for maneuverability, and fixed wheels at the rear for stability. Each wheel type is specifically designed for its location's requirements, improving overall stability on uneven terrain while keeping the complexity manageable through functional differentiation
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 wagon provides effective shock absorption and support, protecting items from damage while being compact for storage and easy to transport, suitable for camping environments with uneven surfaces.
Implementation Method 1
four damping elements; the damping elements comprise one or more of damping springs, cylinder dampers or variable damping force shock absorbers
Data Source
AI summary
A portable folding wagon includes wheel components, four damping elements, a foldable load-bearing bottom frame, a foldable main frame, a telescopic handle assembly and a cloth basket. The wheel components include two fixed wheels arranged at a rear part of the portable folding wagon and two universal wheels arranged at a front part of the portable folding wagon. The foldable load-bearing bottom frame includes two lower rear connectors, two lower front connectors and an X-shaped folding load-bearing frame. The fixed wheels are arranged below the lower rear connectors through the damping elements, and the universal wheels are arranged below the lower front connectors through the damping elements. The damping elements include one or more of damping springs, cylinder dampers or variable damping force shock absorbers.