Mechanical Filling Detection for Waste Containers
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Solution Overview
Problem
Current urban waste collection devices require a power supply for electronic sensors to detect maximum filling levels, limiting their practicality in stand-alone or urban power supply scenarios, and necessitate complex logistical management to avoid unnecessary emptying or waste deposition.
Innovation Solution
A mechanically operated detection system using a swinging arm and link mechanism to signal maximum filling without electronic sensors, allowing for entirely mechanical operation and easy access for maintenance, with a movable body signaling the filling status through the containment structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electronic sensors are used to detect maximum filling level, then detection accuracy is improved, but device complexity and power supply requirements increase
Solution Approach 1:
The patent replaces electronic sensors with a purely mechanical detection system consisting of a swinging arm and counterweight mechanism. The mechanical system detects filling level through physical interaction with waste material, eliminating the need for electronic components, power supply, and complex signal processing while maintaining reliable detection capability
Solution Approach 2:
The mechanical detection system is self-activating through the natural movement of waste into the container. As waste enters, it automatically triggers the swinging arm mechanism without requiring external power or control systems. The system uses the waste's own weight and movement to activate the detection and signaling functions
2Reliability
If electronic sensors are installed in each container, then filling level monitoring is improved, but power supply requirements and installation complexity increase
Solution Approach 1:
The patent eliminates electronic sensors and replaces them with a passive mechanical system that uses gravity and inertial forces. The swinging arm with counterweight detects filling levels through mechanical equilibrium changes, requiring no electrical power while maintaining continuous monitoring capability
Solution Approach 2:
The detection system operates periodically through the natural filling cycles rather than requiring continuous powered operation. The mechanical arm swings into position during waste conferral and automatically returns to its initial position, creating a rhythmic, self-sustaining detection cycle without energy consumption
3Ease of operation
If mechanical detection systems are used, then power supply requirements are reduced, but detection speed and responsiveness may be reduced
Solution Approach 1:
The patent employs a dynamic swinging arm mechanism that actively swings into the container during waste conferral rather than remaining static. This dynamic movement allows the detection element to quickly reach the waste and trigger the signaling mechanism, maintaining fast response times while using simple mechanical components
Solution Approach 2:
The swinging arm is pre-positioned and ready to swing into action before waste conferral begins. The mechanism is designed to automatically activate as waste enters, eliminating detection delays. The preliminary setup of the mechanical system ensures immediate responsiveness without requiring complex electronic processing time
Data Source
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AI summary
A containment structure (2) defines a containment chamber (4) and comprises a top wall (5) having a conferring mouth (8) provided with a shutter (9) movable towards an opening condition, to enable the introduction of waste into the containment chamber (4). At least one swinging arm (17) engaged in the containment chamber (4) is movable between a raised position and a lowered position in which it is respectively brought closer to and moved away from the top wall (5). A link mechanism (20) moves the swinging arm (17) between the raised position and the lowered position following a movement of at least one control lever (11a, 11b) between a rest position and a working position. A signalling device (28) indicates occurrence of a maximum filling degree when the translation of the swinging arm (17) towards the lowered position is prevented by the presence of the waste accumulated in the containment chamber (4).