Adjustable Funnel Locking for Hazardous Material Safety
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Solution Overview
Problem
The existing devices for collecting hazardous substances face issues with uncontrolled escape and damage to the outlet nozzle or funnel during container exchange, particularly when the outlet nozzle is rigid and positioned below the liquid level, leading to risks of spillage and container tipping.
Innovation Solution
A device where the funnel and its connected outlet nozzle can be adjusted between working and maintenance positions, locking or unlocking the safety cabinet depending on its position, using sensors or mechanical mechanisms to control access and prevent uncontrolled escape or damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the outlet nozzle is rigid and positioned below the liquid level for stable filling, then the filling reliability is improved, but the risk of nozzle damage and uncontrolled spillage during container exchange increases
Solution Approach 1:
The outlet nozzle is made adjustable between a working position (below liquid level for stable filling) and a maintenance position (above container for safe exchange). This dynamic repositioning allows the system to optimize for filling stability during operation while eliminating spillage risks during container exchange by raising the nozzle above the container opening.
Solution Approach 2:
A locking unit is introduced as an intermediary mechanism that mediates between the funnel position and cabinet access. The locking unit senses the nozzle position and automatically locks the cabinet door when the nozzle is in the working position, preventing accidental displacement and spillage, while allowing access when the nozzle is retracted to the maintenance position.
2Reliability
If the safety cabinet remains locked during container exchange to prevent unauthorized access, then security is improved, but the ease of operation for container replacement deteriorates
Solution Approach 1:
The locking unit incorporates a feedback mechanism that automatically detects the nozzle position and controls the cabinet lock accordingly. When the nozzle is in the maintenance position (above container), the locking unit receives feedback and unlocks the cabinet door, enabling convenient container exchange. When the nozzle returns to the working position, the feedback triggers automatic re-locking, maintaining security without manual intervention.
3Ease of operation
If the funnel is made adjustable between working and maintenance positions to facilitate container exchange, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The funnel adjustment mechanism is designed to be manually operable without requiring additional actuators or complex control systems. The operator can easily move the funnel between working and maintenance positions by hand, and the locking unit automatically responds to this position change. This self-service approach provides the needed functionality while minimizing added complexity.
Data Source
Figure 1A
Figure 1B
Figure 2A
AI summary
The invention relates to a device for receiving hazardous substances. This device is equipped with at least one container (1) enclosed in a safety cell (2) and with a funnel (5) with an outlet nozzle (6) provided outside the safety cell (2) for conveying the hazardous substances filled into the funnel (5) into the container (1). According to the invention, the funnel (5), which is adjustable between a working position and a maintenance position, and/or its outlet nozzle (6) locks or releases the safety cell (2) depending on its position.