Tube Compression Transfer Pump for Fixed-Volume Fluid Discharge
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Solution Overview
Problem
Conventional fluid transfer pumps using air cylinders inaccurately compress tubes due to shape and assembly errors, leading to variable fluid discharge, and are not suitable for explosion-proof environments.
Innovation Solution
A transfer pump design utilizing a tube guide block, tube compression block, air cylinder, and elastic member to accurately compress tubes using compressed air, ensuring stable fluid discharge and safety in explosion-proof areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an air cylinder is used to compress the tube, then the pump can be used in explosion-proof environments, but the tube compression accuracy deteriorates due to shape errors and assembly deviations
Solution Approach 1:
A guide rail is introduced as an intermediary component between the air cylinder and the tube compression mechanism. The guide rail provides a precise linear path that constrains the compression block's movement, eliminating deviations caused by direct air cylinder actuation. This mediator component ensures accurate tube compression while maintaining the explosion-proof benefit of using compressed air.
2Device complexity
If the tube compression block directly follows the air cylinder rod, then the structure is simple, but compression accuracy deteriorates due to rod deviation during reciprocating motion
Solution Approach 1:
The compression mechanism is segmented into distinct functional components: the air cylinder provides power, the guide rail provides precise linear guidance, and the compression block performs the actual compression. This segmentation allows each component to specialize in its function, with the guide rail specifically addressing the rod deviation problem while maintaining overall structural simplicity.
3Device complexity
If the tube is compressed without a guide mechanism, then the device complexity is low, but the amount of fluid transferred varies due to inaccurate compression
Solution Approach 1:
The guide rail creates a controlled linear path that ensures the compression block moves along a consistent trajectory. This equipotential guidance system ensures that regardless of minor variations in tube shape or assembly, the compression force is applied consistently at the same position, guaranteeing uniform fluid transfer volume.
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 design enables accurate and safe discharge of a fixed amount of fluid by stabilizing tube compression despite shape and diameter variations, suitable for explosion-proof environments.
Implementation Method 1
an elastic member which applies elastic force to the air cylinder and causes the tube compression block to compress the tube
Implementation Method 2
an air cylinder which has a rod connected to the tube compression block and reciprocates the tube compression block by reciprocating the rod in a linear direction using compressed air
Data Source
AI summary
Provided is a transfer pump for a fixed amount of fluid, the transfer pump including: a tube guide block that is inserted to partially expose a fluid transfer tube; a tube compression block that is reciprocally disposed on the tube guide block and compresses the exposed portion of the tube inserted into the tube guide block to transfer the fluid; an air cylinder that has a rod connected to the tube compression block and reciprocates the tube compression block by reciprocating the rod in a linear direction by using compressed air; and an elastic member that allows the tube compression block to compress the tube by applying an elastic force to the air cylinder, such that the tube can be accurately compressed and a fixed amount of fluid can be discharged.