Folding Pet Cart Frame With Expandable Space and Compact Collapse
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Solution Overview
Problem
Existing pet carts have limited space due to short frame bodies, making them unsuitable for pets with high bodies, and they occupy excessive space when folded.
Innovation Solution
A folding cart frame design with rotatable frame members and canopy frame structures that allow for increased pet placement height and space, along with a collapsible configuration that reduces overall size for easy carrying and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the frame body is made short to reduce occupied space when folded, then the cart becomes more portable and easier to store, but the placement space height for the pet is reduced, making it unsuitable for pets with high bodies
Solution Approach 1:
The patent applies dynamics by making the frame body telescopic and adjustable in length. The frame body can be extended to provide sufficient placement space height for pets with high bodies when in use, and retracted to reduce occupied space when folded for portability and storage. This dynamic adjustment capability resolves the contradiction between frame length and placement space volume.
2Volume of moving object
If the frame body is extended to increase placement space height for pets, then pets with high bodies can be accommodated, but the occupied space when folded increases, reducing portability
Solution Approach 1:
The telescopic frame body structure allows dynamic adjustment between extended and retracted states. When extended, it provides sufficient placement space volume for pets with high bodies. When retracted, it minimizes the frame body length for compact folding and enhanced portability. This dynamic mechanism resolves the contradiction between placement space volume and frame body length.
3Ease of operation
If the cart is designed to fold compactly for easy carrying and storage, then portability is improved, but the structural complexity increases due to multiple rotatable connections and folding mechanisms
Solution Approach 1:
The patent applies segmentation by dividing the cart into modular components including the telescopic frame body, canopy assembly, and wheel assembly, each with specific folding capabilities. The frame body is segmented into telescopic sections with rotatable connections, allowing compact folding while maintaining manageable structural complexity through modular design.
Solution Approach 2:
The dynamic telescopic and folding mechanisms enable the cart to transform between extended operational state and compact storage state. The rotatable connections and telescopic sections provide controlled movement that achieves compact folding for portability while the systematic design keeps structural complexity manageable.
4Adaptability or versatility
If multiple rotatable connections and folding mechanisms are added to enable compact folding, then portability and storage efficiency are improved, but the manufacturing complexity and cost increase
Solution Approach 1:
The cart is divided into standardized modular segments including telescopic frame sections, canopy assemblies, and wheel units. Each module incorporates rotatable connections and folding mechanisms that can be manufactured independently using standardized components, reducing overall manufacturing complexity despite the advanced folding capabilities.
Solution Approach 2:
The dynamic folding and telescopic mechanisms are implemented using standardized mechanical components that can be mass-produced. The rotatable connections and telescopic sections use conventional engineering solutions that balance folding versatility with manufacturing feasibility, controlling production complexity while achieving superior adaptability.
Data Source
AI summary
The present invention discloses a folding cart frame and a pet cart provided with the folding cart frame, including a cart frame body, a wheel body assembly, a bottom frame structure, a first side frame structure, a second side frame structure, a third side frame structure, and a fourth side frame structure, where the third side frame structure includes a third side frame member connected to the first side frame structure and the second side frame structure and a first canopy frame member, and the fourth side frame structure includes a fourth side frame member connected to the first side frame structure and the second side frame structure and a second canopy frame member.