Foldable Fan Rotary Locking Structure With Axial Assembly
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Solution Overview
Problem
Existing foldable fans face issues with poor structural design and inconvenient installation processes due to the radial installation of components like springs and limiting tables in their rotational locking mechanisms.
Innovation Solution
A rotary locking structure featuring an elastic lining ring and fixed lining ring with supporting bridges, allowing for axial assembly and enabling both position adjustment and locking through elastic deformation, combined with a non-circular cross-section and fixed teeth for secure fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spring and limiting table are installed radially in the rotational locking mechanism, then the locking function is achieved, but the installation process becomes inconvenient and complex
Solution Approach 1:
The patent inverts the traditional radial installation approach by implementing axial installation for the rotating rod and supporting bridges. The rotating rod is inserted axially into the first socket cylinder, and the supporting bridges are arranged axially on the elastic lining ring, allowing components to be assembled along the axial direction rather than radially, thereby simplifying the installation process while maintaining the locking function
Solution Approach 2:
The patent segments the locking mechanism into modular components: the rotating rod with rod body and rod seat, the elastic lining ring with supporting bridges, the fixed lining ring, and the socket cylinders. This segmentation allows each component to be independently manufactured and assembled axially, making the overall installation process more convenient and straightforward
2Reliability
If traditional radial components are used, then the locking mechanism functions, but the structural design becomes poor and assembly is complicated
Solution Approach 1:
The patent merges the rotating rod and supporting bridges into a coordinated axial assembly system. The rotating rod and supporting bridges work together through axial movement to achieve both rotation control and locking functions, simplifying the overall structural design compared to separate radial components
Solution Approach 2:
The patent inverts the traditional radial arrangement by using axial orientation for all main components. The rotating rod inserts axially, the supporting bridges arrange axially, and the locking holes align axially, creating a unified axial assembly approach that reduces structural complexity
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
Facilitates straightforward installation and secure locking while allowing adjustable positioning, enhancing the usability and assembly efficiency of foldable fans.
Implementation Method 1
the supporting bridges are arranged to generate elastic deformation in an axis direction of the elastic lining ring
Data Source
AI summary
Provided are a rotary locking structure and a foldable fan. The rotary locking structure, comprising a rotating seat, a fixed seat, a fixed lining ring, an elastic lining ring and a rotating rod, wherein one end of the rotating seat is provided with a first socket cylinder, the fixed seat is provided with a sleeve, and one end of the sleeve is fixedly connected to a second socket cylinder; the rotating rod comprises a rod body and a rod seat; a plurality of supporting bridges are formed on the elastic lining ring, and the supporting bridges are arranged to generate elastic deformation in an axis direction of the elastic lining ring; and locking clamping seats protruding towards the fixed lining ring are formed on two centrally symmetric supporting bridges, an outer contour of one of the locking clamping seats is arc-shaped.