Peristaltic Pump Roller Module Prevents Tube Deformation
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Solution Overview
Problem
Conventional peristaltic pump devices cause permanent deformation of flexible tubes due to continuous compression by rollers, reducing product life and operational reliability.
Innovation Solution
A peristaltic pump device design featuring a casing, flexible tube, and a roller module with a holder structure, roller mechanism, and actuating rod, where the actuating rod's downward movement interferes with the holder structure to compress the flexible tube via lateral, rotational, or tilted movement, allowing the roller mechanism to compress the tube only when in use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the roller continuously compresses the flexible tube to transfer fluid, then the fluid transfer function is achieved, but the flexible tube suffers permanent deformation reducing product life and reliability
Solution Approach 1:
The holder structure is designed to be movable relative to the curved tube portion, allowing the roller mechanism to dynamically adjust its position and compression timing. This dynamic configuration enables fluid transfer only when needed while preventing continuous compression that would cause permanent deformation
Solution Approach 2:
The roller mechanism compresses the flexible tube periodically rather than continuously, synchronized with the actuating rod's periodic downward movement. This periodic compression achieves fluid transfer functionality while allowing the tube to recover between compression cycles, preventing permanent deformation and extending product life
2Productivity
If the roller mechanism is always in contact with the flexible tube, then fluid can be continuously pumped, but the tube deforms permanently reducing operational reliability
Solution Approach 1:
The system transitions from static continuous contact to dynamic intermittent contact. The holder structure's mobility allows the roller to engage the tube only during the pumping phase and disengage during recovery phases, maintaining productivity while improving operational reliability through reduced cumulative deformation
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 design prevents continuous compression of the flexible tube when not in use, reducing the risk of permanent deformation and enhancing the product life and operational reliability of the peristaltic pump device.
Implementation Method 1
The roller compresses the flexible tube, the pressure inside the tube increases, pushing the fluid forward
Implementation Method 2
As the roller compresses the flexible tube, the pressure inside the tube increases, pushing the fluid forward
Implementation Method 3
When the actuating rod moves downward, the protruding structure interferes with another of the holder structure and the actuating rod for moving the holder structure
Data Source
AI summary
A peristaltic pump device includes a casing, a flexible tube, and a roller module. The flexible tube is disposed within an accommodating space of the casing and has a curved tube portion. The roller module is rotatably disposed within the accommodating space and surrounded by the flexible tube and includes a holder structure movable relative to the curved tube portion, a roller mechanism rotatably mounted on the holder structure, and an actuating rod. The actuating rod is movable upward and downward relative to the curved tube portion. A protruding structure protrudes laterally from at least one of the holder structure and the actuating rod. When the actuating rod moves downward, the protruding structure interferes with another of the holder structure and the actuating rod for moving the holder structure to make the roller mechanism compress the curved tube portion by a lateral, rotational, or tilted movement of the holder structure.