Measuring Wheel Gear Linkage for No-Squat Reading
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Solution Overview
Problem
Conventional measuring wheels require users to squat down to read the measuring module, which is inconvenient and affects usability.
Innovation Solution
A measuring wheel design featuring an upper and lower transmission group, a linking group, and an elastic element to transmit rotation energy from the distance wheel to the measuring module on the handle, allowing for easy reading without squatting, with enhanced accuracy and reduced measurement errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the measuring module is disposed adjacent to the distance wheel, then the transmission is stable and measurement errors are low, but the user needs to squat down to read the measuring module, which is inconvenient
Solution Approach 1:
The patent relocates the measuring module from a horizontal position adjacent to the distance wheel to a vertical position on the handle, utilizing the vertical dimension to bring the display within the user's natural line of sight, thereby eliminating the need to squat while preserving transmission stability through the linking group mechanism
2Ease of operation
If the measuring module is relocated to the handle, then the user can read it easily without squatting, but the transmission structure becomes more complex
Solution Approach 1:
The patent introduces a linking group as an intermediary mechanism between the distance wheel and the measuring module, using a linking shaft with connecting elements that engage with engaging gears to transmit rotation energy, thereby achieving the relocated position while maintaining transmission stability
Solution Approach 2:
The patent extracts the measuring module from the traditional adjacent position and relocates it to the handle, separating the measurement function from the distance wheel assembly, which simplifies the overall structure and improves usability
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
Enables convenient and accurate measurement reading without bending over, maintaining low measurement errors through stable gear engagement facilitated by an elastic element.
Implementation Method 1
The elastic element pushes the two connecting elements respectively toward and abutted against the two engaging gears
Data Source
AI summary
A measuring wheel has a body, a distance wheel, a measuring module, an upper transmission group, a lower transmission group, and a linking group. The body has a handle, a wheel fork, and an operating shaft. The distance wheel is disposed on the wheel fork. The measuring module is disposed in the handle. The upper transmission group is disposed in the handle, is connected to the measuring module, and has an upper engaging gear. The lower transmission group is disposed in the wheel fork, is connected to the distance wheel, and has a lower engaging gear. The linking group is disposed in the operating shaft and has a linking shaft, an upper connecting element, a lower connecting element, and an elastic element. The two connecting elements are connected to and synchronously rotated with the linking shaft, and respectively engage with the two engaging gears.