Adjustable Smooth-Jaw Flush Valve Wrench for Chrome Nuts
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Solution Overview
Problem
Existing flush valve installation tools often damage the chrome finish of nuts due to teeth on the pliers or inadequate gripping, and require multiple tools for different sizes, slowing the installation process.
Innovation Solution
A flush valve installation tool with smooth, 120-degree angled jaw faces that form a hexagonal shape to engage multiple sides of the nut, allowing for adjustable sizing to accommodate various nut sizes without scratching, and featuring a locking mechanism for secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If typical pipe wrench or adjustable pliers are used, then the installer can tighten the nuts, but the chrome nuts may get scratched or damaged
Solution Approach 1:
The jaw faces of the tool are specifically designed with smooth surfaces at precise locations to contact only the flat sides of hexagonal nuts, avoiding any teeth or rough surfaces that could scratch the chrome finish, while still providing adequate gripping force
Solution Approach 2:
The smooth jaw faces act as an intermediary between the tool and the chrome nut, transferring mechanical force without direct contact between rough tool surfaces and the delicate chrome finish, thereby preventing scratches
2Adaptability or versatility
If multiple sized wrenches are used, then various sized nuts can be accommodated, but the installer must carry multiple tools and constantly swap tools
Solution Approach 1:
The tool is designed with adjustable jaw spacing that can be configured to accommodate multiple nut sizes, allowing a single tool to perform the function of multiple fixed-size wrenches, thereby reducing the number of tools the installer must carry and swap
Solution Approach 2:
The tool incorporates movable and adjustable components that allow the jaw spacing to be dynamically changed between uses, enabling the same tool to adapt to different nut sizes rather than requiring separate fixed-size tools for each size
3Force
If typical pliers are used, then the installer can apply force to tighten nuts, but the pliers do not adequately grab the nuts due to inadequate gripping
Solution Approach 1:
The jaw faces are designed with specific geometric features including angled surfaces that match the geometry of hexagonal nuts, creating optimal contact points that maximize gripping force and prevent slippage during tightening operations
Data Source
AI summary
A flush valve installation tool and associated method is used to install and uninstall chrome flush valves. The installation tool is capable of installing and uninstalling nuts of a variety of sizes without causing damage to the surfaces of the nuts. The flush valve installation tool has opposing first and second members coupled together by a pin or bolt. The first and second members each have two or more smooth jaw faces configured to engage 4 or 5 surfaces of a nut to be installed or uninstalled. The flush valve installation tool can be adjusted to select the distance between opposing jaw faces to accommodate different sized nuts.