Rotary Top Rod Assembly for Stable Foldable Safety Seats
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Solution Overview
Problem
Existing child car seats with separate cradle and base structures lack stability due to the base only contacting the car seat from the bottom, and they are too large for easy transportation.
Innovation Solution
A rotary top rod is integrated into the safety seat, allowing it to rotate and lock into place for stability, while also being foldable for space-saving and easy transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a support rod is disposed at the front side of the seat to improve stability, then the stability of the safety seat is improved, but the size of the safety seat increases making it difficult to transport
Solution Approach 1:
The support rod is designed to be rotatable relative to the base, allowing it to transition between an extended stable position during use and a folded position for compact storage and transport. This dynamic structure resolves the contradiction by making the stability-enhancing feature adjustable rather than fixed.
Solution Approach 2:
The support rod is divided into multiple segments that can rotate relative to each other, allowing the structure to be compacted into a smaller volume when not in use while maintaining full extension capability when stability is needed.
2Stability of the object's composition
If the base is extended to the front side of the seat to improve stability, then the stability of the safety seat is improved, but the device complexity increases
Solution Approach 1:
The support rod uses a rotatable connection mechanism that allows simple angular movement rather than complex multi-axis joints. This dynamic but simple mechanism provides stability adjustment without significantly increasing device complexity.
Data Source
AI summary
The present disclosure provides a rotary top rod for being mounted on a safety seat. The rotary top rod includes a top rod body rotatably mounted on the safety seat, a locking assembly and an operating component, wherein the locking assembly includes a locking component and a fastening component, one of the locking component and the fastening component is mounted on the top rod body, the other one of the locking component and the fastening component is mounted on the safety seat, the locking component is engaged with the fastening component to fasten the top rod body to a predetermined position, the operating component is connected to the locking component, and the operating component is operated for driving the locking component so as to control engagement of the locking component and the fastening component.