Double-layer Sun Umbrella with Detachable Inner Surface
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Solution Overview
Problem
Existing double-layer sun umbrellas lack simple disassembly, versatility, and easy maintenance of the inner frame, as the inner umbrella surface is fixed and not detachable.
Innovation Solution
A double-layer cloth structure with a detachable inner umbrella surface, featuring a connecting member at the edge of the inner surface connected to the long umbrella rib, a fixing ring to the lower umbrella disc, and various fastening methods such as hooks, screws, and elastic clips, allowing for easy disassembly and assembly of the inner surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the inner umbrella surface is fixed to the entire sun umbrella, then the structure is stable and simple, but disassembly is difficult and maintenance is complicated
Solution Approach 1:
The inner umbrella surface is divided into multiple panels that can be independently removed and reinstalled. Each panel is connected to the umbrella frame through detachable connecting members, allowing selective access to different sections of the inner frame for maintenance while keeping other sections in place.
Solution Approach 2:
The connecting members between the inner umbrella surface panels and the umbrella frame are designed to be detachable rather than permanent. This dynamic connection allows the inner surface to be easily assembled and disassembled for maintenance purposes, transforming the fixed structure into a maintainable one.
2Adaptability or versatility
If the inner umbrella surface is fixed, then the structure is simple, but style update and versatility are limited
Solution Approach 1:
The inner umbrella surface is segmented into multiple removable panels that can be independently replaced. This allows users to update the style by replacing individual panels without replacing the entire inner surface, enhancing versatility while keeping the detachable mechanism relatively simple.
Solution Approach 2:
The detachable panels can be removed, replaced, or updated independently. Old panels can be discarded or stored, and new panels with different styles or functions can be installed, allowing flexible style updates and multiple uses of the umbrella structure.
3Ease of operation
If the inner umbrella surface is detachable, then maintenance and style update are easy, but the structure becomes more complex
Solution Approach 1:
The detachable system is segmented into standardized connecting members and panel units. Each panel has standardized connection points that interface with corresponding features on the umbrella frame, simplifying the disassembly and assembly process through modular design.
Solution Approach 2:
The connecting members are designed with universal features that can accommodate different panel configurations and attachment methods (such as hooks, loops, or snap-fits). This universal design simplifies the overall mechanism by using a single type of connecting member for multiple purposes.
Data Source
AI summary
A double-layer cloth structure of a sun umbrella comprising a long umbrella rib, a short umbrella rib, an upper umbrella disc, a lower umbrella disc, an outer umbrella surface and an inner umbrella surface; the outer umbrella surface is fixed to the outer side of the long umbrella rib, an edge of the inner umbrella surface is provided with a connecting member, the connecting member is detachably connected to an end portion of the long umbrella rib, a fixing ring is detachably connected to the lower umbrella disc, a mounting hole is formed in the center of the inner umbrella surface, and the middle portion of the inner umbrella surface where the mounting hole is located is fixed to the lower umbrella disc through the fixing ring.