Threaded Wall Plug with Rotary Grooving for Drywall Anchor Strength
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Solution Overview
Problem
Existing wall anchors often lack sufficient strength, easily strip drywall holes, and become loose over time, requiring time-consuming repairs and additional materials for patching, which can weaken the repaired area and lead to subsequent failures.
Innovation Solution
A plug system for repairing drywall holes using a rotary tool, featuring a cylindrical plug body with a grooving implement and threads for cutting and abrading the wall, creating a larger hole with increased surface contact and strength, allowing for quick and strong anchoring of objects like towel bars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional wall anchors are used, then installation is simple, but holding strength is insufficient and they become loose over time
Solution Approach 1:
The patent combines multiple functions into a single integrated plug system: the plug body includes both anchoring features (threads for screw attachment) and wall repair features (grooving implement for cutting and abrading). This merging eliminates the need for separate patching materials and tools, providing strong anchoring while reducing installation time by consolidating multiple steps into one operation.
Solution Approach 2:
The plug system performs preliminary wall preparation actions (cutting and abrading) directly on-site before final anchor installation. The grooving implement prepares the wall surface and creates proper receptacles for the plug, ensuring optimal anchoring conditions are established before the anchor is fully installed, which prevents future loosening.
2Reliability
If drywall patching is performed to repair holes, then hole damage is addressed, but the process is time-consuming and requires multiple materials
Solution Approach 1:
The plug serves multiple functions simultaneously: it acts as a wall repair patch, an anchor mounting surface, and a structural reinforcement element. The single plug component replaces traditional patching materials (compounds, tapes, textures) while also providing the mounting surface for anchors, thereby reducing material complexity while ensuring reliable wall repair.
Solution Approach 2:
The patent merges wall repair and anchoring functions into one integrated system. The plug body itself becomes both the repair patch and the anchor base, eliminating the need for separate patching materials and simplifying the overall repair process while maintaining structural integrity.
3Strength
If multiple holes are repaired with traditional methods, then each hole is patched, but the repaired areas are weaker than original wall
Solution Approach 1:
The grooving implement performs preliminary preparation by cutting precise receptacles and abrading the wall surface before the plug is installed. This preliminary action ensures proper adhesion and mechanical interlocking, creating stronger repaired areas that exceed the strength of the original wall structure.
Solution Approach 2:
The plug system changes the physical parameters of the repair by creating a larger surface area contact with the wall through the grooving action. The abraded surface and mechanically interlocked plug structure increase the bonding strength and contact area, resulting in repaired areas that are stronger than the original drywall.
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 plug system provides a strong, quick, and cost-effective solution for repairing drywall holes, ensuring increased holding strength and minimizing installation time, while maintaining the integrity of the wall repair.
Implementation Method 1
The distal end has a grooving implement that is adapted to cut or abrade the wall
Data Source
AI summary
A plug system for repairing a hole in a wall includes a cylindrical plug body that has a grooving implement adapted to cut or abrade the wall at one end and a thread projecting outwardly from the plug body at an opposing end. A plug is adapted for fitting within a rear cavity and has at least one screw aperture. In use, with the plug body fixed with the rotary tool, the rotary tool is activated to rotate the plug body to cut or abrade the wall around the hole. The thread of the plug body engages the wall until the proximal end of the plug body is substantially flush with the wall to repair the wall, and to provide screw apertures at the desired location on the wall to hold an object with screws if needed.