Rotating Seal-Type Liquid Testing Apparatus With Integrated Volume Control
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Solution Overview
Problem
Traditional liquid testing apparatuses are complex, with many structural units and operation steps, and lack precise liquid volume control and automatic preservation of uncontaminated liquid for secondary testing.
Innovation Solution
A rotating seal-type liquid testing apparatus with a lower cup component, upper cup component, top cover, and testing element, featuring a water-absorbing sealing plug, guide grooves, and tearing cracks in test strips to enable airtight liquid handling and reusable test strips for consistent results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a traditional liquid testing apparatus is used, then rapid and accurate detection can be achieved, but the device complexity increases with many structural units and operation steps
Solution Approach 1:
The patent integrates multiple functional components (reaction cup, cut-off cup, liquid outlet, sealing plug) into a unified integrated testing device. The reaction cup and cut-off cup are combined in a nested arrangement, allowing liquid flow control and separation functions to be performed by a single integrated structure, thereby reducing overall device complexity while maintaining detection accuracy
Solution Approach 2:
The integrated testing device performs multiple functions simultaneously: the reaction cup conducts the chemical reaction, the liquid outlet controls liquid flow, the sealing plug prevents contamination, and the guide groove directs liquid flow. This multi-functionality reduces the need for separate structural units and operation steps
2Manufacturing precision
If a traditional liquid testing apparatus is used, then detection can be performed, but precise control of liquid volume for testing cannot be achieved
Solution Approach 1:
The patent incorporates a liquid outlet with specific structural characteristics at the bottom of the reaction cup, positioned to control liquid flow at a critical location. The outlet's design (including connection to the cut-off cup) provides precise liquid volume control without requiring complex production processes for the entire device
3Adaptability or versatility
If a traditional liquid testing apparatus is used, then testing can be completed, but automatic reservation of uncontaminated liquid for secondary testing cannot be achieved
Solution Approach 1:
The patent divides the testing device into two distinct but integrated cups: the reaction cup for primary testing and the cut-off cup for retaining uncontaminated liquid. This segmentation allows the liquid flow to be automatically directed to separate compartments, enabling secondary testing without requiring additional structural units or complex mechanisms
Solution Approach 2:
The liquid outlet acts as an intermediary structure that automatically directs liquid flow between the reaction cup and cut-off cup. This intermediary mechanism enables automatic reservation of uncontaminated liquid for secondary testing without requiring manual intervention or additional complex structural units
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
Simplifies production processes, ensures accurate and consistent testing results by controlling liquid volume and allowing secondary testing without contamination, while maintaining the reliability of temperature-based assessments.
Implementation Method 1
a water-absorbing sealing plug embedded in the vent hole
Implementation Method 2
The testing element is positioned in the reaction region and detects whether a sample contains a specific substance
Data Source
AI summary
A rotating seal-type liquid testing apparatus includes a lower cup component, an upper cup body, a top cover and a testing element. The lower cup component includes a lower cup body, a high liquid baffle, a low liquid baffle and a water-absorbing sealing plug. The low liquid baffle and the high liquid baffle divide a bottom of an inner cavity of the lower cup body into a reaction region and a cut-off region. An edge of a bottom surface of the inner cavity of the lower cup body is provided with a vent hole, and the vent hole is positioned in the cut-off region. The upper cup body is disposed in the lower cup body, a bottom surface of an inner cavity of the upper cup body is provided with a liquid outlet, and the liquid outlet is connected to the reaction region in the lower cup body.