Rotary Replaceable Umbrella Nest Assembly Concealing Screw Holes
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Solution Overview
Problem
Existing outdoor umbrella nest assemblies are aesthetically unpleasing due to exposed screw mounting holes and lack the ability to easily replace ornaments without disassembling the entire structure.
Innovation Solution
A rotary replaceable umbrella nest assembly featuring a lower nest cover with recesses for rods, a metal nest support, and a detachable plastic lower nest base ornament connected via internal threads, allowing for quick and easy replacement of ornaments while concealing screws for a more aesthetic appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screws are used to connect upper and lower plastic components, then the connection is strong and reliable, but the screw mounting holes are exposed and aesthetically unpleasing
Solution Approach 1:
The patent extracts the screw mounting holes from the visible exterior surface and relocates them to the interior or hidden areas. The connecting structure is designed so that screws are concealed within the nest assembly, leaving the outer surface smooth and aesthetically pleasing while maintaining strong connection strength through proper internal anchoring.
Solution Approach 2:
The patent introduces an intermediary connecting structure (such as a connecting ring or integrated joint) that mediates between the upper and lower nest components. This intermediary element provides hidden screw mounting points internally while presenting a clean, uninterrupted exterior surface, thus resolving the conflict between connection strength and aesthetic appearance.
2Strength
If the nest structure is made as a single integrated piece, then the structure is strong and stable, but ornaments cannot be replaced easily
Solution Approach 1:
The patent segments the nest structure into distinct modular components (upper nest, lower nest, connecting structure) that are assembled together. The ornament is designed as a separate replaceable element that attaches to one of these modules, allowing the ornament to be changed without compromising the structural integrity of the overall nest assembly.
Solution Approach 2:
The patent creates a dynamic, adjustable connection system that allows the ornament to be easily attached and detached. The connecting structure includes features such as threaded holes, bayonet mounts, or snap-fit mechanisms that enable quick ornament replacement while maintaining structural stability when the ornament is installed.
3Stability of the object's composition
If multiple ornaments are fixed in the same nest structure, then the structure is stable, but replacing one ornament requires disassembling the entire structure
Solution Approach 1:
The patent divides the nest into independent modular sections, each capable of holding ornaments. This segmentation allows users to access and replace ornaments in one module without disturbing or disassembling other modules, significantly reducing the time and effort required for ornament replacement while maintaining overall structural stability.
Solution Approach 2:
The patent designs the connecting structure with more attachment points and mounting options than strictly necessary for basic stability. This excessive design provides multiple access paths and attachment locations, allowing users to replace ornaments quickly by accessing any convenient mounting point without requiring complete disassembly of the structure.
Data Source
AI summary
A rotary replaceable umbrella nest assembly for an umbrella has a lower nest cover with a plurality of recesses for receiving the end of each rod; a circular hole is at the center of the lower nest cover for receiving a middle column; a connecting sleeve extends down from the circular hole; the connecting sleeve has a plurality of external threads; a nest support has a ring-shape matching a bottom of the lower nest cover having a center hole for a connecting sleeve to pass through; a lower nest base ornament is disposed below the nest support and is threaded with and is detachably connected to the lower nest cover.