Closure device, system, particle collecting assembly and suction device
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Solution Overview
Problem
Existing closure devices for particle collection volumes, such as disposal bags or containers, often fail to prevent accidental opening, leading to environmental contamination as particles can escape when the device is not properly secured.
Innovation Solution
A closure device with a locking mechanism that requires a separate unlocking element to open, ensuring the closure slide can only be moved between release and closure positions securely, thereby preventing accidental opening and reducing contamination risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a simple closure slide is used without a locking mechanism, then the device is easy to operate and manufacture, but the risk of accidental opening increases leading to environmental contamination
Solution Approach 1:
The closure mechanism is divided into separate functional components: a closure slide for opening/closing operations and a locking mechanism with locking element and locking cavity for securing the closed position. This segmentation allows the closure slide to remain simple for easy operation while the locking mechanism provides reliable accidental opening prevention, resolving the contradiction between reliability and device complexity.
Solution Approach 2:
The locking element is designed to automatically engage with the locking cavity when the closure slide is in the closed position, performing the locking action preliminarily and automatically without requiring additional user intervention. This preliminary action ensures the closed position is secured before any accidental forces can occur, maintaining reliability while keeping the operation simple.
2Reliability
If a locking mechanism with separate unlocking element is implemented, then the security against accidental opening is improved, but the ease of operation is reduced due to additional steps required to open
Solution Approach 1:
The unlocking function is extracted as a separate, distinct action from the closing action. The locking element and locking cavity are designed so that opening requires a specific unlocking movement that is separate from the simple closing movement. This extraction provides security against accidental opening while maintaining clear, intentional operation - the closure slide closes easily, but opening requires the deliberate unlocking step, preventing inadvertent activation.
3Ease of operation
If the closure device is designed to be always accessible without locking, then the ease of access is improved, but the risk of particle escape and environmental contamination increases
Solution Approach 1:
The locking mechanism provides preliminary anti-action by automatically securing the closure slide in the closed position through the locking element engaging the locking cavity. This preliminary securing action prevents any subsequent accidental opening that would lead to particle escape and environmental contamination, while still allowing intentional access when needed by applying the unlocking element.
Solution Approach 2:
The locking element acts as an intermediary between the closure slide and the external environment. It mediates the state of the closure device by maintaining the closed position and preventing direct access to the particle collection volume unless the unlocking element is applied. This intermediary mechanism protects against environmental contamination while preserving controlled accessibility.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a closure device (10), (20) for closing a particle collecting volume (4), in particular of a bag or a container, comprising: an access element (1), (11) with an access element opening (5) for providing access to the particle collecting volume (4), and a closure slide (2), (12), which can be moved relative to the access element (1), (11) in a selective manner into a release position or a closure position. The closure slide (2), (12) releases the access element opening (5) in the release position and closes the access element opening (5) in the closure position. The closure device also comprises a locking mechanism (6) for locking the closure slide (2), (12) relative to the access element (1) in the closure position, wherein the locking mechanism (6) requires a specified unlocking element (3), (13) which is separate from the locking mechanism (6) for unlocking purposes.