Universal Wheel Brake Lever Structure for Simpler Assembly
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Solution Overview
Problem
Existing universal wheels with spring clip braking structures are complex, costly, and cumbersome to assemble, leading to potential brake failures and unfavorable maintenance.
Innovation Solution
A universal wheel design featuring a mounting base, roller, and brake lever with an annular channel and limiting grooves, utilizing an elastic limiting through hole and brake rod for simple locking and unlocking, facilitated by a brake lever that switches between locking and unlocking positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spring clip braking structures are used, then braking function is achieved, but device complexity increases and manufacturing cost rises
Solution Approach 1:
The patent combines the braking function with the roller's inherent structure by using the roller's outer surface as the braking surface and integrating the brake rod directly into the mounting base. This eliminates the need for separate spring clips and complex braking mechanisms, achieving braking functionality while reducing structural complexity.
Solution Approach 2:
The patent extracts the essential braking function from the complex spring clip system and implements it through a simplified brake rod that directly contacts the roller's outer surface. This extraction removes unnecessary components while preserving the core braking capability.
2Reliability
If spring clip braking structures are used, then braking function is achieved, but manufacturing cost increases
Solution Approach 1:
The patent merges the braking function into the existing roller and mounting base structures, eliminating the need for additional spring clips and complex assemblies. This reduction in component count directly lowers manufacturing costs while maintaining effective braking functionality.
Solution Approach 2:
The patent employs simple, easily manufactured components such as the brake rod and roller with outer surface braking, replacing expensive and complex spring clip mechanisms. These simpler components are more cost-effective to manufacture and replace.
3Reliability
If spring clip braking structures are used, then braking function is achieved, but assembly process becomes cumbersome
Solution Approach 1:
The patent integrates the braking mechanism into the roller and mounting base structures, so that the braking components are already positioned and configured during initial assembly. This eliminates the need for separate adjustment and coordination of multiple spring clips, significantly simplifying the assembly process.
Solution Approach 2:
The brake rod is pre-positioned in the mounting base with its limiting groove aligned to receive the roller. This preliminary configuration ensures that when the roller is installed, the braking function is automatically engaged without requiring additional assembly steps for coordinating multiple spring clips.
4Reliability
If spring clip braking structures are used, then braking function is achieved, but maintenance and replacement become unfavorable
Solution Approach 1:
The patent extracts the braking function from the complex spring clip system and implements it through a simple brake rod that can be independently accessed and replaced. This extraction makes maintenance and replacement much more favorable compared to disassembling and coordinating multiple spring clips.
Solution Approach 2:
The braking system is segmented into independent components (brake rod, roller, mounting base) that can be maintained or replaced separately. The brake rod can be replaced without affecting the roller or mounting base, facilitating easier maintenance and replacement compared to integrated spring clip systems.
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 design simplifies assembly, reduces manufacturing costs, and ensures effective braking with easy operation and maintenance, enhancing stability and reliability.
Implementation Method 1
an elastic support plate (11), wherein an arc-shaped elastic limiting through hole (110) is formed in the elastic support plate (11) along an axial direction of the arc-shaped cover (10)
Data Source
AI summary
The present invention discloses a universal wheel. A roller is rotationally connected to a mounting base. One side of the roller is provided with an annular channel and limiting grooves. The mounting base is provided with an arc-shaped elastic limiting through hole, a locking position, an unlocking position, and a positioning part. A middle position of a brake lever is pivotally connected to the mounting base, with one end for driving and the other end for a brake rod to pass through and slide and push the positioning part, enabling the brake rod to switch between the locking position and unlocking position. The present invention simplifies an assembly process while implementing effective braking.