Rotatable Ring Pressing Assembly for Garbage Bag Sealing
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Solution Overview
Problem
Existing garbage cans are inconvenient to use due to the difficulty in sealing and handling garbage bags, leading to potential spills and hand contamination during cleanup.
Innovation Solution
A sealing device with a connecting assembly, ring pressing assembly, and limiting piece that allows for easy rotation and sealing of pull-rope-type garbage bags, reducing the risk of bag breakage and hand contamination, and improving user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nested inner and outer can bodies are used to fasten a garbage bag, then the garbage bag can be secured, but the inner can body and outer can body must be separated to remove the garbage bag, which complicates the cleaning process and may cause garbage to scatter
Solution Approach 1:
The sealing device is divided into independent functional components: a connecting assembly with a limiting piece, and a rotatable ring pressing assembly with first and second ring pressing pieces. This segmentation allows the sealing function to be isolated from the can body structure, enabling easy removal without separating inner and outer can bodies.
Solution Approach 2:
The ring pressing assembly is designed to be rotatable and self-operating. The user simply rotates the assembly to seal the garbage bag, and the limiting piece automatically prevents over-rotation. During removal, the pull rope automatically unwinds and detaches the bag, eliminating the need for manual separation of can bodies.
2Ease of operation
If the ring pressing assembly is rotatably connected, then the garbage bag can be sealed conveniently, but the bag may break during sealing
Solution Approach 1:
The round corners are pre-designed on the ring pressing pieces before use. This preliminary structural preparation ensures that when the bag is pulled during sealing, the stress is distributed along the curved path rather than concentrated at sharp edges, preventing the bag from breaking while maintaining sealing convenience.
Solution Approach 2:
The ring pressing pieces incorporate round corners (curved surfaces) instead of sharp edges. This curvature allows the garbage bag to bend smoothly during the sealing process, reducing stress concentration and preventing bag breakage while maintaining the rotatable sealing mechanism's convenience.
3Productivity
If the first ring pressing piece and second ring pressing piece rotate from first position to second position, then the garbage bag is sealed, but the structure becomes complex
Solution Approach 1:
The first and second ring pressing pieces are combined into a single rotatable ring pressing assembly that operates together. This merging reduces the number of independent components and simplifies the overall structure while maintaining the sealing function. The limiting piece on the connecting assembly further simplifies control by preventing over-rotation.
Solution Approach 2:
The ring pressing assembly is designed to be rotatable rather than fixed, allowing dynamic adjustment during sealing. The limiting piece provides a simple mechanical stop that defines the rotation range, enabling fast sealing operation without complex control mechanisms or multiple components.
Data Source
AI summary
A sealing device and a garbage can with the sealing device are disclosed. The sealing device includes: a connecting assembly, provided with a limiting piece; a ring pressing assembly, including a first ring pressing piece and a second ring pressing piece, and configured for arranging a pull-rope-type garbage bag; the ring pressing assembly being rotatably connected with the connecting assembly; the first ring pressing piece and the second ring pressing piece being configured to rotate from a first position to a second position under an action of a pull rope of the pull-rope-type garbage bag, and the first ring pressing piece and the second ring pressing piece being both provided with a round corner at a side opposite to a rope pulling direction; and the limiting piece, arranged on the connecting assembly, and configured for limiting a rotatable angle of the ring pressing assembly.