Compact Progressive Cavity Pump with Rigid Shaft Locking
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Solution Overview
Problem
Progressive cavity pumps are prone to failure due to their large size and reliance on flexible shafts or universal joints.
Innovation Solution
A compact progressive cavity pump design that eliminates the need for flexible shafts or universal joints by using a rigid shaft and a locking assembly that allows the pump to be securely attached to bottles of varying sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible shaft or universal joint is used in the progressive cavity pump, then the pump can accommodate varying bottle sizes and orientations, but the pump becomes prone to failure and less reliable
Solution Approach 1:
The pump is divided into modular components including a pump housing, nozzle assembly, and locking mechanism that can independently adjust to different bottle configurations. This segmentation allows each component to optimize its function without requiring flexible shafts or universal joints, thereby maintaining reliability while achieving adaptability.
Solution Approach 2:
The pump incorporates a dynamic locking assembly with movable lock bolts and adjustable nozzle positioning that adapts to different bottle sizes and orientations. This dynamic adjustment mechanism eliminates the need for flexible transmission elements, providing both adaptability and reliability through rigid, failure-resistant connections.
2Reliability
If the pump is designed to be compact, then the reliability is improved by eliminating flexible shafts, but the adaptability to different bottle sizes may be reduced
Solution Approach 1:
The pump housing incorporates a universal locking assembly with adjustable lock bolts that can secure the pump to bottles of various sizes and orientations. This multi-functional locking mechanism maintains a compact, rigid design without flexible shafts while providing universal adaptability across different bottle configurations.
Solution Approach 2:
The nozzle assembly includes multi-position positioning capability that allows adjustment in multiple dimensions (angular and radial positions). This dimensional flexibility enables a compact pump design to adapt to various bottle sizes and dispensing requirements without requiring flexible transmission elements, maintaining both reliability and versatility.
3Ease of operation
If the nozzle is made easily operable with one hand, then the ease of operation is improved, but the precision of liquid dosing may be compromised
Solution Approach 1:
The nozzle assembly incorporates self-latching positioning mechanisms that automatically maintain precise dosing positions once selected. This allows easy one-handed operation for position selection while the self-latching feature ensures precise, repeatable dosing without requiring continuous manual adjustment, thereby maintaining both ease of operation and dosing precision.
Data Source
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AI summary
This disclosure relates to pumps and, more particularly, to progressive cavity pumps.