Nested Tube Support Leg Locking for Stable Height Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The complex structure of photography support stand locking members, involving multiple components, leads to high failure rates, instability, and reduced service life due to wear and loosening.
Innovation Solution
A simplified support leg assembly with a first locking assembly comprising a fixing base, connection sleeve, and locking member, actuated by an actuating rod, allowing for rapid height adjustment and secure locking through frictional engagement between nested tubes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple components (fixing base, rotating shaft, abutting component, elastic component, movable component) are used in the locking member, then the locking function can be achieved, but the structure becomes complex and requires high precision for component cooperation, leading to wear and loosening during use
Solution Approach 1:
The patent combines multiple locking components (fixing base, rotating shaft, abutting component, elastic component, movable component) into a single integrated locking member with a U-shaped body. This merging reduces the number of parts from five separate components to one unified structure, eliminating the need for precise cooperation between multiple parts while maintaining the locking function through the integrated design of the locking arms and elastic deformation capability.
2Reliability
If multiple components are used in the locking member, then the locking function can be achieved, but wear and loosening occur during use, resulting in higher failure rate
Solution Approach 1:
The patent integrates the elastic component and movable component into the U-shaped locking member body itself, eliminating separate parts that could wear against each other. The locking member uses its own elastic deformation to achieve locking and unlocking, removing the need for separate elastic components and movable parts that would subject to wear and loosening over time.
3Reliability
If a complex locking member structure is used, then locking function is achieved, but high precision for component cooperation is required, leading to increased manufacturing difficulty
Solution Approach 1:
The patent consolidates five separate components into one U-shaped locking member that can be manufactured as a single piece. This eliminates the need for precise assembly and cooperation between multiple parts, reducing manufacturing complexity while maintaining the locking function through the integrated structure's elastic deformation and locking arm mechanisms.
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 simplified design ensures stable and efficient height adjustment with reduced mechanical complexity, enhancing operational efficiency and longevity of the support stand.
Implementation Method 1
the locking member is closely attached to the first nested tube, and the inner wall of the locking member is capable of being closely attached to the outer wall of the fixing base
Data Source
AI summary
A support leg assembly and a photography support stand are provided. The support leg assembly includes a support component, a first locking assembly, and an actuating rod. The support component includes at least a first nested tube and a second nested tube. Th second nested tube is capable of moving along an inner wall of the first nested tube when an external force is applied. The first locking assembly includes a fixing base installed at an end of the second nested tube, a connection sleeve rotatably connected with the fixing base, and a locking member connected with the connection sleeve. A gap is defined between an outer wall of the fixing base and an inner wall of the first nested tube. The locking member is partially inserted into the gap. The actuating rod is inserted into the connection sleeve to drive the connection sleeve to rotate.