Sample Tube Foldable Opening Self-Locking Closure
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Solution Overview
Problem
Existing sample tube systems require separate cap members or plug members for closure, increasing manufacturing costs and complicating handling, as they often necessitate the use of secondary caps and may not provide a secure, self-locking mechanism.
Innovation Solution
A sample tube with a foldable structure that can transition from an open state to a self-locked closed state without the need for additional cap members, utilizing a combination of radial and axial inward forces to fold the opening portion into a secure, self-biased closed position, thereby eliminating the requirement for separate caps and enhancing handling and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate cap members or plug members are used for closing the sample tube, then the sample tube can be securely closed, but the manufacturing cost increases and handling becomes more complicated
Solution Approach 1:
The invention merges the closing function into the sample tube itself by providing a foldable structure integrated into the tube wall at the opening portion. This eliminates the need for separate cap members or plug members, reducing the number of parts while maintaining secure closure capability through the self-contained foldable design.
Solution Approach 2:
The foldable structure is designed to be self-operating, requiring no additional tools or separate components to achieve closure. The structure can be manually folded by the user to transition between open and closed states, providing self-service functionality that eliminates dependence on external cap members.
2Ease of manufacture
If separate cap members are used for closing the sample tube, then closure is achieved, but handling is simplified less and manufacturing costs increase
Solution Approach 1:
The closing function is merged into the sample tube body through the foldable structure, which is formed as an integral part of the tube wall. This consolidation reduces the total number of components that need to be manufactured, assembled, and inventoried, thereby lowering manufacturing costs while simultaneously reducing device complexity.
Solution Approach 2:
The sample tube body is designed to perform multiple functions: it serves as both the container and the closing mechanism through its foldable structure. This multi-functionality eliminates the need for dedicated cap members, reducing both manufacturing complexity and the number of parts required.
3Ease of operation
If a foldable structure is integrated into the sample tube, then the number of parts is reduced and handling is simplified, but the closure mechanism becomes more complex
Solution Approach 1:
The foldable structure is segmented into multiple fold lines or creases that guide the folding motion. This segmentation simplifies the user's interaction by providing natural folding paths, making the closure mechanism easier to operate despite being integrated into the tube wall.
Solution Approach 2:
The foldable structure transitions from a static tube wall to a dynamic, movable component that can change configuration between open and closed states. This dynamic capability allows the structure to adapt to different operational states while maintaining structural integrity, improving ease of operation.
4Reliability
If the foldable structure is designed to be self-locked, then security is improved and accidental opening is prevented, but the force required to open intentionally increases
Solution Approach 1:
The foldable structure incorporates a self-locking mechanism that creates preliminary resistance to opening forces. This preliminary anti-action prevents accidental opening by requiring a deliberate, sufficient force to overcome the locking position, while still allowing intentional opening when the user applies adequate force.
Solution Approach 2:
The foldable structure may utilize curved or angled fold lines that create mechanical advantage in the locked position. The geometry of the folds is designed to naturally resist opening forces while maintaining the ability to be opened intentionally with sufficient applied force.
Data Source
AI summary
The present invention relates to a sample tube (10), a sample tube closing device for closing a sample tube (10) and a method of closing a sample tube (10), the sample tube (10) comprising:a bottom portion (30),a tubular portion (20), and an opening portion (40),wherein the opening portion (40) comprises a foldable structure (41) configured to be foldable in a predetermined manner from an open state into a closed state.