Telescopic Pole Mechanism for Compact Wheeled Distance Measuring Device
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Solution Overview
Problem
Conventional distance measuring devices with foldable poles occupy significant space and fail to accommodate users of different heights due to limited folding configurations.
Innovation Solution
A wheeled distance measuring device with a retractable pole unit composed of multiple sections, where positioning units and an action rod allow for easy adjustment and collapse of the pole into a shorter section, accommodating various user heights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the pole is folded to two parallel sections at the mediate portion, then the pole can be collapsed to some extent, but the folded status still occupies a lot of space
Solution Approach 1:
The pole is divided into multiple telescopic sections that can be nested within each other. The first section can be inserted into the second section, which can be inserted into the third section, allowing the pole to be collapsed to a very short length for compact storage, solving the space occupation problem effectively
Solution Approach 2:
The pole is segmented into multiple independent sections with positioning units at each section. Each section can be independently positioned and locked, making the folding and extending operations simple and intuitive while achieving compact storage
2Adaptability or versatility
If the pole is folded to two parallel sections, then some space reduction is achieved, but the device cannot meet different requirements for users of different heights
Solution Approach 1:
The pole length is made dynamically adjustable through telescopic sections that can be extended or retracted as needed. Users can adjust the pole to different lengths according to their height requirements, and when not in use, the pole can be collapsed to a short section for compact storage, simultaneously achieving both adaptability and space efficiency
3Adaptability or versatility
If multiple positioning units are added to control relative positions of sections, then the pole can be adjusted to different lengths, but the device complexity increases
Solution Approach 1:
The positioning unit is segmented into standardized components (positioning members, positioning holes, action rods) that are repeated at each section interface. This modular approach allows the pole to be adjusted to different lengths while keeping each individual positioning mechanism simple and easy to understand
Solution Approach 2:
The positioning members automatically engage with the positioning holes when the sections are aligned, providing self-locking functionality. The action rod simply needs to be pushed to release the positioning members, and the spring automatically resets them to the engaged position, reducing the complexity of operation
Data Source
AI summary
A wheeled distance measuring device includes a wheel with a measuring unit connected to a side of the wheel and a pole unit is connected to the wheel, the pole unit includes a first section, a second section and a third section. The first section has two first holes and two second holes defined in two ends thereof. The first section is movably inserted into the second section which has two third holes and movably inserted into the third section which has two fourth holes. Two positioning units are respectively located between the first and second section, and between the second and third sections. The positioning units control the retractable movement of the sections so as to adjust the length of the pole unit. A handle is connected to the pole unit and controls the positioning units by an action rod.