Triangular Telescopic Rod Structure for Stable Adjustable Box Covers
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Solution Overview
Problem
Current telescopic rods used in box covers have concentrated stress points, leading to damage and a shortened service life, and lack stability due to limited fixing points.
Innovation Solution
A telescopic rod structure featuring a triangular configuration with a fixing piece and a movable piece, allowing the rod to extend or shorten while forming an unfolded or folded state, distributing stress and providing surface contact for improved stability and longevity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the telescopic rod is fixedly mounted at the two ends with single-point fixing, then the structure is simple and easy to install, but the stress points are concentrated causing damage and shortened service life
Solution Approach 1:
The fixing piece is divided into multiple fixing points (first fixing point and second fixing point) instead of single-point fixing. The first end of the fixing piece is fixed to the immovable body at one location while the second end is fixed at a different location, distributing the stress across multiple points and reducing concentration of force at any single point.
Solution Approach 2:
Different parts of the fixing piece have different functions: the first end connects to the immovable body, the second end connects to the movable body, and the intermediate portion provides surface contact. This local differentiation of quality allows each section to optimize its function while collectively improving reliability.
2Device complexity
If the telescopic rod is directly arranged on the cover body with limited fixing points, then the structure is simple, but the overall structure is not stable enough
Solution Approach 1:
The fixing piece extends in multiple spatial dimensions rather than being confined to a single line. It has a first end, a second end, and an intermediate portion that contacts the cover body surface, creating a two-dimensional or three-dimensional fixing structure that provides both simplicity and stability.
Solution Approach 2:
The intermediate portion of the fixing piece acts as an intermediary element that contacts the cover body surface. This intermediary portion distributes forces and provides additional stability while maintaining the simplicity of the overall structure.
3Device complexity
If the telescopic rod uses point contact at the ends, then the structure is simple, but tensile deformation occurs reducing service life
Solution Approach 1:
The contact interface is segmented into discrete fixing points (first fixing point and second fixing point) separated by the intermediate portion. This segmentation allows the structure to handle tensile forces more effectively by distributing them across multiple contact points rather than concentrating them at single points.
Solution Approach 2:
The intermediate portion serves as a mediator between the first end and second end of the fixing piece. It provides surface contact that prevents direct transmission of tensile forces between the connection points, thereby reducing tensile deformation and improving the strength and service life of the structure.
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 triangular structure enhances stability during extension and accommodation, reduces tensile deformation, and prolongs the service life of the telescopic rod and associated components by distributing stress and allowing for efficient space use.
Implementation Method 1
a piston rod slidably connected to the sleeve, driving the piston rod to slide in the sleeve
Implementation Method 2
the first end of the fixing piece is hinged with an end of the piston rod. The movable piece is hinged with an end of the sleeve by a connecting portion
Data Source
AI summary
A telescopic rod structure is provided. The telescopic rod structure includes a telescopic rod, a fixing piece and a movable piece, and the telescopic rod includes a sleeve and a piston rod sliding on the sleeve, driving the piston rod to slide in the sleeve so that the telescopic rod can be extended or shortened. The fixing piece and the movable piece are respectively hinged at the two ends of the telescopic rod, and the movable piece is hinged with the fixing piece, the three form a triangular structure, and the triangular structure can be switched between an unfolded first state and a folded second state. An adjustable box using the telescopic rod structure is also provided.