Detachable Electric Auxiliary Wheel Mount for Bicycle Rear-Wheel Wear
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Solution Overview
Problem
Existing electric bicycle rear wheel motors face issues with weight distribution, wear, and safety due to their placement, and are difficult to remove or replace without specialized tools, leading to increased maintenance and safety risks.
Innovation Solution
An electric auxiliary wheel assembly structure that can be mounted on the rear wheel, featuring a detachable positioning plate, telescopic tubes, suspension relief plates, and a shock-absorbing spring, distributing vibrations and providing stability while allowing easy installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the drive motor is placed in the rear of the main frame structure, then optimal driving force with no power loss is achieved, but all structural weight is concentrated on the rear wheel causing high wear and safety issues
Solution Approach 1:
The invention divides the drive system into two independent parts: the original bicycle rear wheel and the detachable electric auxiliary wheel. This segmentation allows the motor weight to be distributed separately rather than concentrated on the original rear wheel, reducing wear while maintaining driving force benefits.
Solution Approach 2:
The electric auxiliary wheel acts as an intermediary carrier for the drive motor. Instead of mounting the motor directly to the bicycle frame or original wheel, it uses the auxiliary wheel as a mediator to transfer power while distributing weight independently through its own wheel structure.
2Ease of operation
If the drive motor is installed in the front wheel, then easy assembly and disassembly is achieved, but weight concentration on handlebars poses safety risks during turning
Solution Approach 1:
The electric auxiliary wheel serves as an intermediary platform that carries the motor independently. This eliminates the need to mount heavy motors directly to the bicycle frame or handlebars, distributing weight through the auxiliary wheel structure instead and avoiding handling safety risks.
3Stability of the object's composition
If the drive motor is placed in the center of the frame, then mechanical forces are distributed logically, but high precision frame tolerances are required and chain wear increases
Solution Approach 1:
The invention segments the drive system so the motor is mounted on the electric auxiliary wheel rather than the central frame structure. This eliminates the need for precise frame tolerances and direct chain connections to the frame, reducing chain wear while maintaining logical force distribution through the wheel assembly.
4Adaptability or versatility
If the drive motor is installed on the bicycle, then electric bicycle functionality is achieved, but the entire rear wheel must be discarded or replaced if the motor malfunctions
Solution Approach 1:
The drive motor is segmented into a separate electric auxiliary wheel that can be independently removed. If the motor malfunctions, only the auxiliary wheel needs to be detached and replaced, not the entire original rear wheel, significantly improving ease of repair.
Solution Approach 2:
The electric auxiliary wheel is designed with detachable connections to the bicycle frame, allowing dynamic assembly and disassembly. This enables easy removal and replacement of the motor-containing auxiliary wheel without permanent installation, facilitating straightforward repairs.
5Adaptability or versatility
If the drive motor is installed on the bicycle, then electric bicycle functionality is achieved, but the weight makes it difficult to use as a standard bicycle
Solution Approach 1:
The electric auxiliary wheel is designed with detachable connections to the bicycle frame, allowing the system to dynamically switch between two modes: attached for electric bicycle operation and detached for standard bicycle use. This enables the heavy motor-containing auxiliary wheel to be removed when standard bicycle handling is needed.
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 assembly structure evenly distributes weight and vibrations, enhances stability, and facilitates easy installation and removal, reducing wear and safety risks, and maintaining optimal driving force.
Implementation Method 1
distributing vibrations and providing stability
Implementation Method 2
shock-absorbing spring
Data Source
AI summary
An electric auxiliary wheel is mounted on the rear wheel of a bicycle. The electric auxiliary wheel comprises an assembly structure and an electric auxiliary wheel frame. The electric auxiliary wheel frame is connected to the bicycle rear wheel through the assembly structure. The assembly structure comprises a positioning plate that can be detachably mounted on the axle of the bicycle rear wheel, allowing users to mount the electric auxiliary wheel on any bicycle. In addition, the assembly structure features two telescopic components that are mounted on the positioning plate and connected to a T-shaped suspension mounting seat. The T-shaped suspension mounting seat is connected to the electric auxiliary wheel frame by two suspension relief plates, thereby assembling the frame with the assembly structure. The present disclosure evenly distributes the vibrations generated by an auxiliary wheel and an electric hub, thereby enhancing the stability of the structure.