Child Seat Side Impact Block With First-Use Self-Locking
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Solution Overview
Problem
Existing child safety seats with side impact protection mechanisms can accidentally fold back into the backrest during a side impact, compromising their protective function after initial use.
Innovation Solution
A self-locking structure is integrated into the side impact protection mechanism, which prevents the side impact protection block from folding back into the backrest once it has been unfolded for the first time, ensuring it remains in the unfolding position to provide continuous protection by blocking the release operation of the self-locking mechanism with the backrest and side impact protection block.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a releasable lock block is used to lock the side impact protection block in the unfolding position, then the release operation can flexibly unfold the side impact protection block, but the side impact protection block may not provide side impact protection during side impact due to accidental operation of the lock block
Solution Approach 1:
The self-locking structure performs a preliminary locking action automatically when the side impact protection block is unfolded for the first time. The lock block is preliminarily positioned to block the folding movement path, and this preliminary action ensures that subsequent accidental operations cannot fold the protection block during side impact, thus resolving the contradiction between operational flexibility and protection reliability.
2Device complexity
If the side impact protection block is designed to be foldable relative to the backrest, then the structure can be compact when not in use, but the block cannot remain stably in the unfolding position after first use
Solution Approach 1:
The locking mechanism is segmented into distinct functional components: the lock block with locking surface, the blocking member with blocking surface, and the elastic component. This segmentation allows the system to achieve both compact storage (folding position) and stable locked state (unfolding position with self-locking), as each component has a specific function that contributes to either compactness or stability.
Solution Approach 2:
The self-locking structure implements self-service functionality where the system automatically locks itself after the first unfolding operation without requiring external intervention. The elastic component automatically engages the lock block with the blocking member, creating a self-sustaining locked state that maintains stability in the unfolding position after first use.
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 self-locking structure effectively prevents accidental folding of the side impact protection block during a side impact, maintaining its protective function and ensuring the child's safety by locking it in the unfolding position after initial use.
Implementation Method 1
a self-locking reset member providing a reset force for a telescopically slidable movement of the self-locking member, the self-locking reset member has a constant tendency to drive the self-locking member to slide in a extending direction
Data Source
AI summary
The present disclosure discloses a child safety seat and a side impact protection mechanism thereof, the side impact protection mechanism is provided at a backrest of the child safety seat and includes a side impact protection block and a self-locking structure. The side impact protection block is movably fitted to the backrest and has a folding position in which the side impact protection block is inwardly folded in the backrest and an unfolding position in which the side impact protection block is outwardly unfolded from the backrest. The self-locking structure automatically moves to a position that blocks the side impact protection block in the unfolding position from switching to the folding position when the side impact protection block is switched from the folding position to the unfolding position, the self-locking structure is fitted to the side impact protection block or the backrest, and the backrest and the side impact protection block shields the self-locking structure to block a release operation of the self-locking structure by an operator, so that the side impact protection block cannot be inwardly folded into the backrest after the first use, thereby effectively preventing the side impact protection block from being accidentally folded during the side impact to provide a side impact protection effect.