Dual-Conduit Container Connection for Pressure-Independent Valve Closure
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Solution Overview
Problem
Conventional container connection systems rely on pressure to open and close check valves, leading to fluid retention in containers and the risk of sparks during filtration due to metal parts used.
Innovation Solution
A container connection system featuring a fluid container with inner and outer conduits and a connecting valve that moves between positions to close or open the conduits based on the action of removing the container, without relying on fluid pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressure-dependent check valve is used to close the conduit, then the valve can automatically control fluid flow based on pressure, but the valve closes when upstream pressure is lowered regardless of user operation, causing fluid to remain inside the fluid container
Solution Approach 1:
The connecting valve is pre-configured with a guide portion that automatically moves the valve to the closed position when the fluid container is removed from the container holder, before any fluid pressure changes occur. This preliminary mechanical action ensures the valve closes in response to removal operation rather than pressure changes.
Solution Approach 2:
A guide portion acts as an intermediary mechanical element between the container holder and the connecting valve. This guide portion transmits the removal motion directly to the connecting valve, mediating the connection between user operation and valve closure without relying on fluid pressure.
2Strength
If metal parts such as springs or diaphragms are used in the check valve, then the valve can function as a pressure-resistant member, but sparks easily occur due to friction between the fluid to be filtered and particles during filtration
Solution Approach 1:
The connecting valve is designed as a disposable component made of non-metallic material that is discarded with the fluid container after use. This eliminates the need for durable metal pressure-resistant components, preventing spark generation while maintaining adequate pressure resistance for the intended service life.
Solution Approach 2:
The material composition of the connecting valve is changed from metal to non-metallic material, fundamentally altering the physical and chemical properties. This parameter change eliminates the spark-generating property while maintaining the necessary mechanical function for pressure resistance during the container's service life.
3Device complexity
If a conventional check valve design is used, then the valve structure is simple, but the valve cannot be detacher from the fluid container, requiring replacement of the entire fluid container to replace the valve
Solution Approach 1:
The valve system is segmented into two independent parts: the connecting valve integrated with the disposable fluid container, and the reusable container holder with the guide portion. This segmentation allows the valve to be easily replaced by simply removing and replacing the fluid container, without affecting the container holder or requiring complex valve replacement procedures.
Data Source
AI summary
A container capable of connecting a container and a container holder to open and close a valve in a simple structure is required. A container connection system comprises a fluid container wherein a fluid flows in an inner portion of the fluid container, the fluid container including a container connection having an inner conduit through which the fluid flows and in communication with the inner portion of the fluid container; and an outer conduit through which the fluid flows and in communication with the inner portion of the fluid container, the outer conduit formed outside the inner conduit and defined by an outer surface of the inner conduit and an inner surface of the outer conduit; and a container holder for receiving the container connection to connect with the fluid container, the container holder having a conduit capable of connecting with the inner conduit of the fluid container and another conduit capable of connecting with the outer conduit of the fluid container when the container holder receives the container connection.