Walking Aid Synchronous Braking and Height Adjustment
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Solution Overview
Problem
Existing walking aids are not easily adjustable in height and lack effective synchronous braking mechanisms, making them inconvenient for users and unstable during use.
Innovation Solution
The walking aid features two support frames with a first adjusting assembly for braking and a telescopic adjusting seat between them. The second adjusting assembly includes an adjusting rod for height adjustment, with a clamped plate and limiting hook mechanism to prevent prolonged brake handle pressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a brake is pressed continuously to keep the walking aid stopped, then the walking aid remains stationary, but the user experience deteriorates and height adjustment becomes impossible
Solution Approach 1:
The brake system transitions from a static continuous-pressing requirement to a dynamic one-time activation. The brake handle, when pressed once, triggers a mechanical linkage that maintains braking force automatically, eliminating the need for continuous user input while preserving both stopping reliability and operational ease.
Solution Approach 2:
The braking mechanism becomes self-sustaining through a mechanical feedback system. Once the brake handle is activated, the system automatically maintains the braking state through the linkage mechanism, freeing the user from continuous intervention and enabling simultaneous height adjustment operations.
2Ease of manufacture
If the walking aid structure is simplified, then manufacturing cost decreases, but synchronous braking capability is compromised
Solution Approach 1:
The patent combines multiple braking functions into a single integrated mechanism. The brake handle connects to both wheels through a shared linkage system, allowing one simple component to control synchronous braking of multiple wheels. This merging approach maintains structural simplicity while ensuring reliable synchronous braking performance.
Solution Approach 2:
The brake handle and linkage mechanism serve multiple functions: they activate braking for both wheels, maintain synchronous operation, and provide a simple user interface. This multi-functional design eliminates the need for separate braking mechanisms for each wheel, keeping the overall structure simple while achieving reliable synchronous braking.
3Device complexity
If the walking aid height is fixed, then the structure is simpler, but adaptability to different users is reduced
Solution Approach 1:
The walking aid height transitions from a fixed static dimension to a dynamically adjustable parameter. The telescopic seat mechanism allows the height to be modified during use, providing adaptability to different users while maintaining a relatively simple overall structure through the use of a single adjustment mechanism.
4Force
If the brake handle requires continuous pressing, then braking force is maintained, but user convenience deteriorates
Solution Approach 1:
The braking system automatically maintains braking force without continuous user input. The mechanical linkage transmits the initial brake handle activation to both wheels and sustains the braking force through the system's mechanical feedback, eliminating the need for continuous pressing while maintaining adequate braking force.
Solution Approach 2:
The brake handle activation performs a preliminary action that triggers the entire braking sequence. By pressing the handle once, the user initiates a mechanical chain reaction that automatically applies and maintains braking force on both wheels, eliminating the need for continuous subsequent input.
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 ensures synchronous braking and adjustable height, enhancing user convenience and stability, while also allowing for easier storage and transport of the walking aid.
Implementation Method 1
first adjusting springs are disposed on peripheries of the first telescopic rod and the second telescopic rod; second adjusting springs are disposed on peripheries of the third telescopic rod and the fourth telescopic rod
Implementation Method 2
the first brake pad and the second brake pad are provided with brake lines, and one end of the brake line extends from the outside of the support frame to the inside of the support frame
Implementation Method 3
the first moving wheel is disposed on one side of the support frame through a rotating shaft
Implementation Method 4
one end of the support frame is provided with an adjusting seat through a first bearing
Data Source
AI summary
The present invention discloses an easily adjustable walking aid, including two support frames, where the support frame is provided with a first adjusting assembly, a telescopic adjusting seat is disposed between the two support frames, a second adjusting assembly is disposed on the support frame, and a part of the second adjusting assembly is connected to the first adjusting assembly. The first adjusting assembly cooperates with the second adjusting assembly, so that when the walking aid is braked, a brake handle can be prevented from being pressed for a long time, and four wheels of the walking aid can also be braked synchronously. In addition, the height of the walking aid can be adjusted based on the height of a user. What's more, the telescopic adjusting seat is disposed for better storing the walking aid, so that the walking aid can be better used and carried.