Fluid Reservoir Docking Station for Coaxial Pump-Driveshaft Alignment
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Solution Overview
Problem
The challenge lies in accurately and efficiently aligning and connecting the fluid outlet nozzle of disposable fluid reservoirs, such as bag-in-a-box containers, with a driveshaft for fluid dispensing systems, as the flexible nature of the containers can cause misalignment and shifting, leading to potential leaks or damage during replacement.
Innovation Solution
A docking station is designed with a receiving surface, a mating surface, and an outlet surface that aligns the fluid outlet nozzle with the driveshaft, allowing for secure and coaxial alignment, facilitating the connection of the fluid pump to the drive motor, and includes a locking mechanism to prevent disconnection during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a flexible bag-in-a-box container is used to store fluid, then the container can be easily replaced and disposed of, but the flexible nature causes misalignment and shifting during replacement, leading to potential leaks or damage
Solution Approach 1:
The docking station serves as an intermediary device between the flexible fluid container and the rigid dispensing system. It provides a stable mounting structure with receiving surfaces that guide and position the container outlet, ensuring accurate alignment with the driveshaft while allowing the flexible container to be easily replaced.
Solution Approach 2:
The system is divided into separate functional components: the disposable flexible container, the permanent docking station, and the driveshaft assembly. This segmentation allows the flexible container to be easily replaced while the docking station maintains consistent alignment characteristics.
2Productivity
If manual alignment of the fluid outlet nozzle with the driveshaft is performed, then connection can be made, but it requires careful alignment and time, reducing efficiency
Solution Approach 1:
The docking station is pre-configured with receiving surfaces, guide channels, and positioning features that automatically align the container outlet with the driveshaft opening before connection is made. This preliminary alignment action eliminates the need for careful manual alignment during replacement.
Solution Approach 2:
The docking station's structural features (guide channels, positioning surfaces, cavity geometry) enable self-alignment of the container outlet with the driveshaft. The system guides itself into proper alignment through its geometric constraints rather than requiring external alignment efforts.
3Reliability
If the fluid outlet is securely connected to prevent leaks, then reliability is improved, but the connection mechanism becomes more complex
Solution Approach 1:
The docking station combines multiple functions into a single integrated structure: alignment guidance, positioning, securing, and leak prevention. The receiving surface, positioning features, and securing mechanism are merged into one component rather than separate elements.
Solution Approach 2:
The docking station serves multiple functions simultaneously: it guides alignment, positions the outlet, secures the connection, and prevents leaks. This multi-functionality is achieved through a single integrated structure rather than multiple separate components.
Data Source
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AI summary
A fluid dispensing system may include a fluid outlet connected to a flexible fluid reservoir and a docking station configured to receive the fluid outlet and align the fluid outlet. In some examples, a fluid pump that defines a driveshaft aperture that is connected to the fluid outlet. In some additional examples, a drive motor is attached to the docking station that includes a driveshaft for driving the fluid pump. The docking station may align the fluid outlet so that the driveshaft aperture defined by the fluid pump is co-axially aligned with the driveshaft. This may allow an operator to efficiently take an empty reservoir out of service and replace it with a new reservoir full of fluid.