Child Safety Seat Rotating Mechanism With Worm-Drive Locking
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Solution Overview
Problem
Traditional child safety seats with electric rotating mechanisms are bulky, heavy, and inconvenient to adjust, often requiring a large mounting space and being prone to damage due to the weight of the driving mechanism, which complicates rotational adjustment and increases the risk of injury during manual rotation.
Innovation Solution
A child safety seat with a compact rotating mechanism featuring a screw rod and toothed ring worm wheel structure, driven by a motor with a speed reduction mechanism, allowing 360-degree rotation and quick locking, while minimizing the size and weight of the driving mechanism, and incorporating sensors for safety features like automatic locking and vehicle door sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional electric rotating mechanism is used, then the child safety seat can be rotated, but the mechanism occupies large space and is heavy
Solution Approach 1:
The patent replaces the traditional electric rotating mechanism with a manual rotating mechanism that uses a handle and gear structure. This substitution eliminates the need for heavy motors and electrical components, significantly reducing the weight and space occupation while still achieving the rotational adjustment function. The manual operation through the handle provides sufficient control for rotating the seat body to different positions.
2Ease of operation
If the driving mechanism is mounted on the base, then rotation is enabled, but the mechanism is heavy and prone to damage from bearing seat weight
Solution Approach 1:
The patent divides the rotating mechanism into two separate parts: the driving mechanism (gears and handle) is mounted on the seat body, while the support structure remains on the base. This segmentation allows the lightweight driving mechanism to be positioned where it is needed without requiring the base to bear its full weight, reducing the risk of damage while maintaining rotation capability.
3Weight of stationary object
If a compact rotating mechanism is used, then size is reduced, but locking mechanism is needed for stability
Solution Approach 1:
The patent incorporates a self-locking feature where the gear structure automatically engages with positioning holes at specific rotational positions. This self-service locking mechanism eliminates the need for additional complex locking components, maintaining the compact size while ensuring stability when the seat reaches desired positions. The automatic engagement provides reliable positioning without adding significant weight or 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
The solution provides a child safety seat with convenient electric rotation, reduced size, improved stability, and enhanced safety through automatic locking and vehicle door sensing, facilitating easy adjustment and use while minimizing the risk of injury and maintenance costs.
Implementation Method 1
the screw rod forms a worm wheel and worm structure together with the turntable
Data Source
AI summary
According to a child safety seat with the rotating mechanism provided by the present invention, the seat body is driven to rotate 360 degrees through the toothed ring and the screw rod. The screw rod is more labor-saving and has a simpler structure. The turntable is fixed relative to the seat body. The locking member is arranged at a bottom of the seat body, and the positioning slot is arranged on the toothed ring, to fix the turntable and the toothed ring. By the arrangement of the plurality of positioning slots on the toothed ring and the arrangement of an unlocking switch configured to unlock the locking member and the positioning slots, the seat body can be manually rotated through the turntable, which is faster. By the arrangement of the sensor to sense whether the seat body is locked, the safety of use is improved.