Child Safety Seat Backrest Locking with Retractable Pin Engagement
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Solution Overview
Problem
Conventional child safety seat locking mechanisms are structurally complex and user-unfriendly, making the attachment and detachment of the backrest and base cumbersome.
Innovation Solution
A backrest locking mechanism featuring a locking pin, locking component, and operating component, allowing for easy engagement and disengagement through a retractable and extendable design, facilitated by a resilient recovering component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional locking mechanism is used to secure the backrest to the base, then the attachment is secure and reliable, but the structure becomes complicated and operation becomes cumbersome
Solution Approach 1:
The locking mechanism is divided into separate functional components: a locking pin on one component (backrest or base) and a locking component with a locking hole structure on the other, allowing independent movement and engagement of each part. This segmentation enables simple individual components to work together for reliable locking without requiring a complex integrated mechanism.
Solution Approach 2:
The locking pin or locking component is designed to be movable rather than fixed, allowing dynamic engagement and disengagement. The operating component enables the locking pin to move between locked and unlocked positions, providing reliable attachment when engaged while maintaining operational simplicity through motion-based control.
2Reliability
If a conventional locking mechanism is used to secure the backrest to the base, then the attachment is secure, but the operation becomes user-unfriendly and cumbersome
Solution Approach 1:
An operating component serves as an intermediary between the user and the locking mechanism. This intermediate element translates simple user actions (pressing, sliding, or rotating) into the complex movements required for locking and unlocking, making the operation user-friendly while maintaining secure attachment through the underlying locking pin and locking hole structure.
Solution Approach 2:
The locking mechanism incorporates a recovering component that automatically returns the operating component to its initial position after engagement. This self-service feature reduces the operational steps required from the user, as the system automatically completes the locking sequence without requiring manual manipulation of multiple components, thereby improving ease of operation while ensuring reliable attachment.
3Ease of operation
If the locking pin and locking component are designed to be movable for easy engagement, then the ease of operation improves, but the structural complexity increases
Solution Approach 1:
The operating component and recovering component are combined into a single integrated assembly that works together to provide both ease of operation and automatic recovery. This merging reduces the total number of separate parts compared to having independent mechanisms for each function, thereby improving engagement convenience while limiting the increase in structural complexity.
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
Enables simple, reliable, and convenient attachment and detachment of the backrest to the base, enhancing user experience and safety seat functionality.
Implementation Method 1
a recovering component connected to the operating component, wherein the resiliently deformed recovering component driving the operating component to recover
Data Source
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AI summary
A backrest locking mechanism is adapted for a backrest and a base of a child safety seat. The backrest is detachably connected to the base. The backrest locking mechanism comprises a locking pin, a locking component, and an operating component. The locking pin is disposed on the backrest. The locking component is disposed on the base. A locking hole structure is formed on the locking component. The locking pin is configured to detachably engage with the locking hole structure. The operating component is movably disposed on the backrest or the base. The operating component drives the locking pin and the locking hole structure to engage with or disengage from each other when the operating component is operated.