Hinged Access Door for Reusable Evacuation Station Filter Bags
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Solution Overview
Problem
Existing filtering devices for evacuation stations are difficult to empty, leading to inefficient debris removal and potential dust clouds, which hinders the reuse of the filtering devices.
Innovation Solution
A filtering device with an interface assembly that includes a base attached to a filter bag and an access door with hinges, allowing for easy rotation from a closed to an open position, providing access to the filter bag for debris removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the filtering device uses a sealed inlet for debris evacuation, then debris collection efficiency is improved, but debris removal difficulty increases
Solution Approach 1:
The filtering device is segmented into a sealed collection chamber and a separate access door mechanism. The inlet remains sealed during evacuation to maintain collection efficiency, while the access door provides a separate pathway for easy debris removal without compromising the sealed environment.
Solution Approach 2:
The access door acts as an intermediary mechanism between the sealed collection chamber and the external environment. It allows users to remove debris without opening the main inlet, thus maintaining the sealed structure's integrity while enabling easy debris disposal.
2Volume of moving object
If the filtering device inlet is made small for compact design, then device size is reduced, but debris removal speed decreases
Solution Approach 1:
The device separates the inlet function from the debris removal function. The small inlet maintains compact design for evacuation, while the access door provides a larger opening specifically optimized for fast debris removal by users.
Solution Approach 2:
The access door introduces a new dimension for debris removal that is independent of the inlet size. Instead of making the inlet larger, the access door provides an additional pathway with sufficient opening area for rapid debris disposal.
3Duration of action of stationary object
If the filtering device bag is made reusable with easy access, then device longevity is improved, but device complexity increases
Solution Approach 1:
The access door is designed as a simple hinged or snap-fit mechanism that transforms the static sealed bag into a dynamically accessible container. This simple mechanical addition enables reuse without requiring complex opening or emptying systems.
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
Enables faster and easier removal of debris from the filtering device, encouraging reuse and reducing the need for frequent replacements, while minimizing dust dispersion.
Implementation Method 1
an air mover configured to produce a flow of air through the airflow pathway such that debris is evacuated from the debris bin of the cleaning robot, travels through the airflow pathway, and is collected in the filter bag
Implementation Method 2
The door is held in the closed position by a magnetic flap
Data Source
AI summary
A filtering device for an evacuation station includes a filter bag configured to collect debris evacuated from a cleaning robot by an evacuation station. The filtering device includes an interface assembly configured to interface with the evacuation station. The interface assembly includes (i) a base attached to the filter bag along an opening of the filter bag, (ii) an access door configured to provide or limit access to a space within the filter bag depending on whether the access door is in an open position or a closed position, and (iii) one or more hinges connecting the base to the access door. The access door is rotatable around the one or more hinges from the closed position to the open position.