Column Joining Structure With Inclined Face and Crimp Lock
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Solution Overview
Problem
The existing flow path member joining structures in high-speed liquid chromatography apparatuses are complicated and costly due to the need for multiple components, making the attachment and detachment of columns cumbersome.
Innovation Solution
A simplified flow path member joining structure using a column attaching/detaching unit with a crimping mechanism, featuring inclined surfaces and tapered enlarged diameter portions, allows for easy alignment and secure attachment of columns without requiring a large number of complex components, utilizing a crimping mechanism with a cam and lever system to apply controlled pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a screw type joint is used to attach the column, then the attachment is secure, but the attaching/detaching work becomes complicated and requires a dedicated tool
Solution Approach 1:
The column is divided into a connector and a chromatographic tube, with the connector being detachably coupled to the column attaching/detaching unit. This segmentation allows the column to be easily attached and detached while maintaining secure connection during operation.
Solution Approach 2:
The pressing mechanism portion is extracted as a separate functional component that can be integrated into the column attaching/detaching unit. This extraction allows the securing function to be achieved without requiring a dedicated screwing tool, simplifying the attaching/detaching process.
2Strength
If a pressing mechanism with lever mechanism is used to improve withstanding pressure, then the withstanding pressure of the coupling portion is improved, but the device complexity increases
Solution Approach 1:
The pressing mechanism portion is merged with the column attaching/detaching unit, integrating the pressure application function into the existing structure. This merging eliminates the need for separate complex mechanisms while maintaining the withstanding pressure capability.
Solution Approach 2:
The column attaching/detaching unit is designed to perform multiple functions: attaching the column, applying pressing force to ensure withstanding pressure, and detaching the column. This multi-functionality reduces device complexity by eliminating dedicated tools and mechanisms.
3Reliability
If multiple components are used to ensure secure attachment, then the attachment reliability is improved, but the cost and structure complexity increase
Solution Approach 1:
The column attaching/detaching unit is designed as a universal component that performs multiple functions: mechanical attachment, sealing, and pressure application. This reduces the total number of components needed while maintaining attachment reliability.
Solution Approach 2:
The connector and column attaching/detaching unit are designed to work together in a self-service manner, where the pressing mechanism portion automatically applies the necessary force when the column is attached, ensuring reliable connection without requiring additional components or complex assembly procedures.
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
This solution enables easy and secure attachment/detachment of columns with reduced complexity and cost, ensuring smooth liquid flow and preventing pressure drops, thereby improving the reliability and efficiency of liquid chromatography measurements.
Implementation Method 1
the second end face is formed as an inclined surface inclined from an opening of the second flow path toward a periphery
Implementation Method 2
a crimping mechanism with a cam and lever system to apply controlled pressure
Implementation Method 3
a crimping mechanism with a cam and lever system to apply controlled pressure
Data Source
AI summary
In a flow path member joining structure for enabling a liquid to flow by attaching, to a first member having a first flow path, a second member having a second flow path and aligning the first flow path and the second flow path with each other, the first flow path is opened to a first end face of the first member, the second flow path is opened to a second end face of the second member, and the second end face is formed as an inclined surface inclined from an opening of the second flow path toward a periphery.