Multi-Size Valve Core Removal Tool for Corroded Core Extraction
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Solution Overview
Problem
Existing removal tools for valve cores are labor-intensive and require frequent size changes, making it difficult to remove corroded valve cores from valve bodies efficiently.
Innovation Solution
A special-purpose valve core removal tool with a tool body featuring multiple square and hexagon openings, an internal hexagon through hole, and a clamping portion, combined with a hexagon wrench, allowing for seamless transitions between different sizes without needing to replace tool heads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple manual removal tools with different sizes are used, then various sizes of valve cores can be removed, but the operation becomes labor-intensive and requires frequent tool head replacements
Solution Approach 1:
The removal tool is designed with a universal structure that can handle multiple sizes of valve cores through a single tool body. The tool body includes an internal hexagon through hole and clamping portion that can adapt to different valve core sizes, eliminating the need for multiple specialized tools or frequent tool head replacements.
Solution Approach 2:
The hexagon wrench with tapered extractor is designed to be inserted into the internal hexagon through hole of the tool body, creating a nested structure. This allows the extractor to be stored within the tool body when not in use, and enables quick deployment by simply inserting the wrench into the tool body without separate tool head changes.
2Reliability
If manual removal tools are used, then valve cores can be removed, but the process is labor-wasting and strenuous especially for corroded valve cores
Solution Approach 1:
The tapered extractor design allows the removal tool to quickly penetrate and engage with the valve core, rushing through the difficult engagement phase. The tapered shape enables the tool to skip the time-consuming process of gradually working into corroded valve cores, allowing for faster and more efficient removal with less labor.
Solution Approach 2:
The tapered extractor utilizes a curved, conical geometry that allows it to smoothly engage and grip the valve core. This curved design enables the tool to effectively bite into and extract corroded valve cores by applying force along the tapered surface, reducing the labor required compared to straight-edged manual tools.
3Adaptability or versatility
If the tool body includes multiple square opening portions and hexagon portions of different specifications, then various sizes of valve cores can be accommodated, but the device complexity increases
Solution Approach 1:
Instead of providing separate tools for each valve core size, the tool body is designed with universal features including multiple square opening portions and hexagon portions that can accommodate different specifications. The internal hexagon through hole and clamping portion work together to provide a universal gripping mechanism that adapts to various valve core sizes without requiring completely separate tool designs.
Data Source
AI summary
Disclosed is a special-purpose valve core removal tool, including a tool body and a hexagon wrench with a tapered extractor. The tool body is detachably connected to the hexagon wrench and includes square opening portions, hexagon portions, and a clamping portion. Multiple square opening portions and hexagon portions of different specifications are arranged axially along the tool body. An internal hexagon through hole is formed in the middle section of the tool body. The internal hexagon through hole radially penetrates through the tool body. The clamping portion is radially arranged in the tool body and transversely moves along the internal hexagon through hole. The hexagon wrench is extendable to the internal hexagon through hole to be clamped with the clamping portion. Through the above structure, the problem that in a disassembling and assembling process, it is needed to replace tool heads with different sizes many times is solved.