Sliding Guide for Peristaltic Pump Hose Support
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Solution Overview
Problem
Conventional peristaltic pumps face challenges in effectively supporting hoses, particularly in maintaining a circular profile and preventing leakage, especially when the hose is not in contact with the rotor, which can lead to slacking or knotting, and existing solutions with multiple rollers complicate the pump configuration.
Innovation Solution
A peristaltic pump design incorporating a sliding guide, coupled with a gear unit and counterpart, adjusts the gap between the rotor and the pump cavity, supported by a sleigh and crankshaft, providing comprehensive hose support without the complexity of numerous rollers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple rollers are used to support the hose, then the hose support reliability is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple separate roller support functions into a single integrated sliding guide structure. The sliding guide combines the support function (preventing slacking and knotting) with the positioning function (maintaining circular profile) into one unified component, thereby improving reliability without increasing device complexity
Solution Approach 2:
The sliding guide serves multiple functions simultaneously: it supports the hose along its entire length, maintains the circular profile, prevents slacking and knotting, and works in conjunction with the compression assembly. This multi-functionality replaces what would traditionally require multiple separate rollers, resolving the contradiction between reliability and complexity
2Productivity
If the hose is not in contact with the rotor, then the pumping efficiency is improved, but the hose stability deteriorates
Solution Approach 1:
The sliding guide acts as an intermediary between the hose and the pump cavity. It provides continuous support to the hose along its entire length, maintaining stability and circular profile without interfering with the rotor's compression action. This allows the hose to remain stable even when not in contact with the rotor, resolving the contradiction between pumping efficiency and hose stability
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
The sliding guide effectively maintains the hose's circular profile and prevents leakage by adjusting compression force, offering a simpler and more reliable support mechanism than traditional rollers, ensuring efficient fluid pumping without slacking or knotting.
Implementation Method 1
The adjustment mechanism comprises at least of a gear unit and a counterpart for said gear unit, wherein the gear unit in cooperation with the counterpart are configured to adjust a gap between the rotor outer surface and the pump cavity inner perimeter
Implementation Method 2
The sliding guide is configured to support the hose/tube
Implementation Method 3
a peristaltic pump that comprises at least an assembly comprising at least a rotor configured to compress a hose/tube being positioned on a pump cavity inner perimeter
Implementation Method 4
the hose resumes its circular profile immediately after the compression thereby creating a vacuum in its lumen thus including the entry of the next volume of the fluid medium into the hose
Data Source
AI summary
A peristaltic pump that includes an assembly including a rotor configured to compress a hose/tube being positioned on a pump cavity inner perimeter and an adjustment mechanism configured to adjust the compression force imposed on the hose/tube. The adjustment mechanism includes a gear unit and a counterpart for the gear unit. The counterpart is operatively coupled to the rotor, wherein the gear unit in cooperation with the counterpart is configured to adjust a gap between the rotor outer surface and the pump cavity inner perimeter. The assembly is fixed to a sliding guide that is configured to support the hose/tube.