Sealed Reagent Box Piston Cap Fixing Grooves
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Solution Overview
Problem
Existing reagent boxes suffer from poor sealing and reagent leakage due to the puncture of aluminum films during sampling, leading to gas escape and environmental pollution.
Innovation Solution
An integrated sampling sealed reagent box is designed with a piston cap and sealing structure, including a load-bearing chamber, fixing grooves, auxiliary ribs, and a silicone gasket, which securely holds the reagent vial and ensures a tight seal between the testing box and the reagent vial, preventing leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sampling probe penetrates the aluminum film sealed on the reagent vial, then sampling can be performed, but the aluminum film becomes punctured causing poor sealing and reagent leakage
Solution Approach 1:
The sealing system is segmented into multiple components: the piston cap with its own sealing surface, the aluminum film as a separate layer, and the reagent vial opening. The puncture occurs only in the aluminum film layer, while the piston cap maintains sealing against the reagent vial body, isolating the puncture effect to a specific segment and preserving overall sealing integrity
Solution Approach 2:
The aluminum film is nested within the sealing system between the piston cap and reagent vial opening. When the probe punctures the aluminum film, it does not compromise the outer sealing interface between the piston cap and reagent vial body, allowing the punctured film to remain contained within the sealed chamber
2Reliability
If the aluminum film is sealed on the mouth of the reagent vial, then the reagent is protected, but the puncture causes the aluminum film to be sandwiched between contact surfaces leading to poor sealing
Solution Approach 1:
The aluminum film is extracted from its traditional position at the very mouth of the reagent vial and repositioned lower down on the vial body. This extraction from the critical sealing interface allows the punctured film to be isolated from the contact surfaces between the piston cap and reagent vial, preventing it from interfering with the main sealing function
3Ease of operation
If the reagent vial is held loosely, then insertion is easy, but shaking to mix reagent causes leakage
Solution Approach 1:
The piston cap is pre-designed with an integrated fixing structure including positioning protrusions and clamping grooves that automatically engage with the reagent vial upon insertion. This preliminary preparation of the fixing mechanism ensures that when the reagent vial is inserted, it is immediately secured in the correct position with adequate clamping force, preventing leakage during subsequent shaking operations
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 solution effectively prevents reagent leakage and gas escape, protecting personnel and the environment by maintaining a secure seal during reagent sampling and mixing processes.
Implementation Method 1
a silicone gasket arranged between the testing box and the piston cap
Implementation Method 2
The fixing structure comprises multiple grooves arranged inside the bearing chamber, and the outer wall of the reagent vial body is uniformly fixed in a circular shape with fixing blocks
Data Source
AI summary
An integrated sampling sealed reagent box is disclosed. The reagent box includes a testing box, sampling probe, piston cap, and reagent vial. There is a test strip set inside the testing box. The sampling probe is set at the first end of the reagent box. The piston cap has a load-bearing chamber, and a sealing structure is provided at the opening of the load-bearing chamber. The piston cap is sealed and connected to the first end of the testing box through the sealing structure. The reagent vial is located in the bearing chamber and is used to hold testing reagents. The mouth of the reagent vial is lower than the opening of the piston cap. The integrated sampling sealed reagent box fixes the reagent vial in the bearing chamber, the mouth of the reagent vial is lower than the opening of the piston cap, and a sealing structure is set.