Rotary Child Seat Base with Torsion Spring Locking Mechanism
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Solution Overview
Problem
Current automobile child safety seats are inconvenient for younger infants as they do not allow for easy adjustment to face the rear or a specific direction within the vehicle, and the locking and unlocking mechanisms of rotary bases are cumbersome.
Innovation Solution
A rotary automobile child safety seat base with a rotation locking mechanism using a locking pin and torsion spring, and a rotation unlocking mechanism involving an unlocking button and eccentric rotating member, allowing for easy adjustment and secure locking of the seat orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rotary mechanism is added to allow the seat to rotate and face different directions, then the adaptability and ease of operation are improved, but the device complexity increases
Solution Approach 1:
The rotation locking mechanism automatically engages when the rotating platform reaches a predetermined angle position. The locking pin is elastically pressed by a torsion spring to automatically insert into the corresponding groove on the base,实现自动锁定功能，无需额外操作
Solution Approach 2:
The patent replaces complex multi-component locking mechanisms with a simplified elastic pin-groove system. The torsion spring provides the elastic force needed for the locking pin to engage with the groove, substituting for more complex mechanical locking systems
2Stability of the object's composition
If a locking mechanism is added to secure the rotating platform at fixed positions, then the stability is improved, but the ease of operation deteriorates due to cumbersome locking and unlocking
Solution Approach 1:
The unlocking function is extracted and concentrated into a single unlocking button that controls the linear moving member. This simple button operation releases the down-pressing force on the locking pin, allowing easy unlocking without complex procedures
Solution Approach 2:
The locking pin is designed with elastic properties and is pressed by a torsion spring, allowing it to dynamically engage and disengage from the groove. This dynamic design enables automatic locking while allowing simple button-operated unlocking
3Device complexity
If a simple locking pin mechanism is used, then the device complexity is reduced, but the reliability of the locking function may be compromised
Solution Approach 1:
The torsion spring is pre-loaded to provide continuous elastic pressing force on the locking pin, ensuring it remains firmly engaged with the groove. This pre-loaded elastic force acts as a cushioning force that maintains reliable locking under various operating conditions
Solution Approach 2:
The unlocking mechanism uses an eccentric rotating member with an eccentric hole that converts rotational motion into linear motion of the linear moving member. This curved path mechanism provides smooth, reliable actuation of the locking pin release
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 convenient and simple operation for rotating the seat to desired angles, securely fixing the position, and preventing excessive rotation, thus enhancing user experience and safety.
Implementation Method 1
a rotation locking assembly that keeps pressing the locking pin toward the base
Implementation Method 2
an eccentric rotating member respectively hinged to the rotation connecting rod and the rotating platform
Data Source
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AI summary
A rotary automobile child safety seat base including a base, a rotating platform arranged on the base and rotating relative to the base, a rotation locking mechanism arranged on the rotating platform and used for restricting rotation of the rotating platform, and a rotation unlocking mechanism for releasing the restriction of the rotation locking mechanism on the rotating platform is provided. The invention further provides an automobile child safety seat. The invention provides the rotary automobile child safety seat base, in which the rotating platform is used to achieve a seat rotating effect, meanwhile, after the seat is rotated to a desired angle through the rotation unlocking mechanism, the rotation locking mechanism is used to achieve the effect of fixing a rotation angle and restrict an orientation of the seat, which achieves convenient adjustment and simple operation.