Foldable Electric Wagon With Motorized Rear-Wheel Control
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Solution Overview
Problem
Existing wagons are inconvenient to use due to limited functions, requiring manual pushing, occupying large space, and lacking foldability for storage.
Innovation Solution
An electric wagon with intelligent control, foldable design, and multiple functions, featuring a control unit with a motor-driven rear wheel, electromagnetic safety lock, and foldable frame for compact storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual pushing is used, then the wagon structure is simple, but the ease of operation deteriorates
Solution Approach 1:
The patent replaces the manual mechanical pushing system with an electric motor-driven system. The motor (14) is installed in the rear wheel, and through the controller (18) and control end (18), users can remotely control the wagon's movement, eliminating the need for manual pushing and significantly improving ease of operation.
Solution Approach 2:
The wagon is equipped with an electromagnetic safety lock (18-4) that automatically locks when not in use, and the control system enables the wagon to move autonomously when powered, reducing the need for continuous manual intervention and enhancing operational convenience.
2Volume of moving object
If the wagon is made foldable, then the volume for storage is reduced, but the device complexity increases
Solution Approach 1:
The wagon frame is divided into fixed units and movable units that can be independently folded. The movable units (16-1, 16-2) with lifting rods (16-1, 16-2) and connecting rods (17-1, 17-2) can be segmented and folded alongside the fixed unit, enabling compact storage while maintaining structural integrity during use.
Solution Approach 2:
The frame incorporates movable connections with lifting rods and connecting rods that allow the structure to dynamically transition between an extended operational state and a folded storage state. The telescopic rod (3) also provides adjustable height, adding dynamic adaptability to the structure.
3Adaptability or versatility
If multiple functions are added, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The control end (18) integrates multiple functions including electromagnetic safety lock (18-4), speed control key (18-1), direction key (18-3), battery indicator light (18-2), and power button (18-1). The USB interface (15) provides charging functionality, and the LED light (15) offers illumination, allowing a single control unit to manage diverse operations and enhance adaptability.
Solution Approach 2:
Multiple functional components are merged into the control end (18) and controller (18) system. The electromagnetic safety lock, speed control, direction control, and power management are combined in one integrated control unit, reducing the need for separate controls and simplifying the overall system while maintaining versatility.
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 electric wagon provides safe, efficient, and versatile operation with space-saving storage, meeting user demands through intelligent control and easy folding.
Implementation Method 1
the electromagnetic region is in adsorptive connection with an electromagnetic key
Data Source
AI summary
An electric wagon comprising a frame fixed to a push rod, front wheels and rear wheels below the frame, a body detachably connected with the frame, and a control unit fixed onto the frame; wherein the control unit comprises a controller, a control terminal wirelessly connected with the input terminal of the controller, and a motor electrically connected with the output end of the controller; and the motor is arranged within the rear wheel and connected with the rear wheel. A control unit is provided on the basis of the existing wagon so as to implement intelligent control of moving forward, moving backward, accelerating, braking and other functions, and is easy to operate and multifunctional.