Height-adjustable standing post
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Solution Overview
Problem
Existing height-adjustable standing posts are prone to instability due to shaking between the inner and outer tubes, resulting in a narrow height adjustment range and increased manufacturing complexity and cost.
Innovation Solution
A simplified structure featuring a driving tube supported on the ground with an outer tube that can rise and fall, utilizing first and second fasteners to reduce friction and stabilize the standing post, along with an auxiliary locking mechanism to prevent sliding, and a self-locking device for motor-driven height adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the inner tube length is short and the interval distance between fastening points is short, then the structure is simple and cost is low, but the inner tube and outer tube are prone to shake making the standing post unstable
Solution Approach 1:
The patent extends the interval distance between fastening points along the longitudinal dimension of the telescopic rod, transforming a single-point fastening into a distributed multi-point fastening system. This dimensional extension increases the structural stiffness and reduces shaking without significantly increasing overall device complexity.
2Ease of manufacture
If the inner tube length is short and the interval distance between fastening points is short, then manufacturing cost is low, but the height adjustment range is narrow
Solution Approach 1:
The telescopic rod is segmented into multiple sections with distributed fastening points, allowing independent adjustment of each segment. This segmentation enables a larger total height adjustment range while keeping individual component lengths and manufacturing costs manageable.
3Reliability
If traditional multi-layer tube structure is used, then anti-rotation function is achieved, but the structure is complicated and manufacturing cost is high
Solution Approach 1:
The patent merges the anti-rotation function into the fastening points themselves, rather than requiring separate anti-rotation mechanisms in multiple tube layers. The fastening points are designed to simultaneously provide both fastening and anti-rotation capabilities, simplifying the overall structure while maintaining reliability.
4Reliability
If traditional multi-layer tube structure is used, then anti-rotation function is achieved, but manufacturing cost is high
Solution Approach 1:
The patent extracts the anti-rotation function from the complex multi-layer tube structure and implements it through simplified fastening points with limiting holes. This extraction maintains the essential anti-rotation reliability while dramatically reducing manufacturing complexity and cost.
Data Source
AI summary
A height-adjustable standing post belongs to the technical field of height-adjustable devices. The height-adjustable standing post includes: a driving tube, an outer tube, a first fastener and a second fastener. The driving tube is supported on the ground. The outer tube is sleeved outside the driving tube, and the outer tube is allowed to rise and fall. The first fastener is provided between the driving tube and the outer tube, and the first fastener is fixed relative to a position of the driving tube. The second fastener is provided between the driving tube and the outer tube, and the second fastener is fixed relative to a position of the outer tube. The second fastener is provided with an auxiliary locking member, and the auxiliary locking member is used to manually lock the outer tube. The height-adjustable standing post has a wide height adjustment range, and is stable.