Child Drift Car Universal Joint Steering Decoupling
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Solution Overview
Problem
Existing child drift cars suffer from speed reduction and impaired drifting performance due to direct connection between the steering wheel and driving wheel, affecting the drift effect.
Innovation Solution
A child drift car design featuring a wheel assembly with driving and rear wheels, a steering mechanism with universal joints, and a differential mechanism to maintain driving wheel speed and enhance turning flexibility, utilizing a motor-driven transmission system with a foot switch for control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the drive device is directly connected to the axle of the driving wheel, then the structure is simple, but the speed of the driving wheel is affected when steering, reducing drifting performance
Solution Approach 1:
The patent introduces a universal joint as an intermediary component between the drive device and the driving wheel axle. This universal joint allows the transmission of rotational motion while accommodating angular misalignment, enabling the driving wheel to maintain its rotation speed independently during steering maneuvers. The universal joint acts as a mediator that decouples the steering motion from the drive transmission, resolving the contradiction between structural simplicity and speed stability.
2Ease of operation
If the steering wheel directly controls the driving wheel, then the direction control is responsive, but the speed of the driving wheel is affected, impairing the drift effect
Solution Approach 1:
The patent segments the connection between the steering mechanism and the driving wheel into independent functional components. The universal joint separates the steering control function from the drive transmission function, allowing each to operate independently. This segmentation enables responsive steering control while maintaining stable driving wheel speed for reliable drift performance.
Solution Approach 2:
The universal joint serves as a mediator that allows the steering wheel to control the direction of the driving wheel without affecting its rotation speed. By introducing this intermediary component, the patent achieves both responsive direction control and reliable drift effect performance simultaneously.
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 allows for higher drifting speed and improved turning radius, ensuring the child drift car maintains speed and performance during steering and drifting maneuvers.
Implementation Method 1
the main shaft is connected to the axle via a universal joint
Data Source
AI summary
A child drift car comprises a car frame, a wheel assembly, a seat, a driving mechanism and a direction control mechanism; the wheel assembly comprises a driving wheel assembly, and the driving wheel assembly comprises driving wheels, and an axle fixedly connected to the driving wheels; the driving mechanism comprises a driver and a transmission device; the direction control mechanism comprises a steering column, a steering wheel fixedly connected to the steering column, and a steering device separately connected to the steering column and the driving wheel assembly; the driving mechanism further comprises a main shaft rotatably disposed on the car frame along its own axis and driven by the transmission device to rotate, and the main shaft is connected to the axle through a universal joint. When the driving wheels turn, the speed of the driving wheels is not affected, and a higher drifting speed can be achieved.