Segmented Multi-Joint Nut for Variable Inlet Port Diameters
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Solution Overview
Problem
Conventional multi-joint nuts for portable fuel containers are difficult to manufacture and costly due to the need for multiple sizes to fit various inlet port diameters, leading to fuel loss and environmental pollution during refueling, especially when connecting pumps or nozzles to the containers.
Innovation Solution
A multi-joint nut design featuring a first nut part with a center fastening part and a second nut part that can be selectively coupled, with vertical and horizontal groove-protrusion configurations to facilitate easy assembly and secure coupling, allowing for adaptation to different diameters and reducing manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple multi-joint nuts of different sizes are provided to fit various inlet port diameters, then adaptability to different coupling parts is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent applies universality by designing a single multi-joint nut structure that can accommodate multiple inlet port diameters through selective coupling of the second nut part. The first nut part provides a standard thread interface, while the second nut part can be selectively attached to match different coupling part diameters, making one nut design universally applicable to various container sizes.
Solution Approach 2:
The patent segments the multi-joint nut into two separate manufacturable parts: a first nut part with a standard thread interface and a second nut part with a coupling interface. These parts are manufactured separately and then coupled together, allowing for easier manufacturing of each component while maintaining the ability to adapt to different diameters through selective assembly.
2Volume of moving object
If the inlet port coupling part is designed with a narrow gap, then compactness is improved, but manufacturing difficulty increases due to difficult thread processing
Solution Approach 1:
The patent divides the coupling structure into two separately manufacturable nut parts. The first nut part can be manufactured with standard thread processing techniques, while the second nut part is manufactured separately and then coupled to the first. This segmentation allows each part to be manufactured with appropriate tolerances and thread processing methods, avoiding the manufacturing difficulties that would arise from attempting to create a single integrated narrow-gap coupling structure.
Data Source
AI summary
A multi-joint nut configured such that a first nut part having a center portion provided with a first fastening part and a second nut part having a center portion provided with a second fastening part are coupled to each other, the multi-joint nut being easily manufactured and being configured such that the first nut part or the second nut part that matches a diameter of a coupling part of a fastening object is capable of being selectively coupled. Furthermore, the multi-joint nut may include the first nut part which is provided with the first fastening part and which has a mounting part that forms a space part, and may include a second nut part which is formed in a ring shape and provided with the second fastening part.