Auxiliary Weight Supporting Device with Walking-Stick Linkage
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Solution Overview
Problem
Current back racks concentrate weight on the user's shoulders and knee joints when carrying heavy objects, leading to potential injuries such as hunchback, scoliosis, and degenerative arthritis, as they fail to distribute the weight effectively, reducing practicability and safety.
Innovation Solution
An auxiliary weight supporting device combining a back rack with a walking-stick and connecting rod, where the walking-stick is propped against the ground to drive a connecting rod that lifts the back rack using elastic components, dispersing the weight to the ground and reducing user burden through alternating left and right movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a traditional back rack is used to carry heavy objects, then the carrying function is achieved, but the weight concentrates on the user's shoulders and knee joints, causing potential injuries
Solution Approach 1:
The invention divides the weight-bearing function into multiple segments: the back rack carries objects, the connecting rod transmits force, and the walking-stick transfers weight to the ground. This segmentation distributes the physical burden across different body parts and external supports, preventing concentration of weight on shoulders and knee joints.
Solution Approach 2:
The connecting rod acts as an intermediary mechanism between the back rack and the walking-stick. It transmits the force generated by the walking-stick's backward swing to lift and support the back rack, thereby mediating the weight distribution and reducing the direct burden on the user's body.
2Object-affected harmful factors
If the walking-stick swings backward to lift the back rack, then the weight is distributed to the ground, but the mechanism requires complex components like connecting rods and elastic components
Solution Approach 1:
The invention utilizes dynamic movement of the walking-stick during walking (backward swing) to activate the weight-supporting function. The elastic component dynamically stores and releases energy during the walking cycle, allowing the system to adapt to the natural rhythm of walking without requiring complex control mechanisms.
Solution Approach 2:
The elastic component automatically stores energy when the walking-stick swings backward and releases it to lift the back rack, creating a self-service mechanism that requires no external power source or complex control system. The system uses the user's own walking motion to power the weight-supporting function.
3Power
If elastic components are used to lift the back rack, then the lifting function is achieved, but friction and mechanical resistance reduce the efficiency
Solution Approach 1:
The guide tube structure provides a constrained path for the connecting rod, ensuring that the force is transmitted efficiently along the optimal trajectory. This reduces unnecessary lateral movements and friction, allowing the elastic component's energy to be more effectively converted into lifting power.
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
Effectively reduces the physical burden on the user by distributing the weight of carried objects to the ground, enhancing comfort, safety, and practicability by minimizing vertical force concentration and reducing friction through the use of a crank component and rotary limit component.
Implementation Method 1
the elastic component is stretched by the sliding block and generates the elastic recovery force to pull and lift the fixing component
Data Source
AI summary
An auxiliary weight supporting device includes a back rack, a walking-stick and a connecting rod. The back rack is configured for the user to wear and for carrying an object. The walking-stick includes a main body and a gripping part and a contacting end configured at two ends of the main body respectively. The gripping part is configured for the user to hold, and the contacting end is configured to touch the ground when the user is walking. The connecting rod has a first end connected to the main body and a second end coupled to the back rack. The walking-stick is controlled by the user to support the ground and swings back and forth in accordance with the user's steps. The connecting rod drives the back rack to rise when the walking-stick swings backwards.