Waste Container Insert With Gravity Flaps for Odor Sealing
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Solution Overview
Problem
Existing waste containers with pedal-operated swing lids are not airtight enough to prevent odor escape, especially when used for odorous waste like diapers or cat litter, and existing solutions with complex mechanisms are costly and prone to mechanical failure.
Innovation Solution
A waste container insert with a mounting frame, retaining frame, and locking device featuring seesaw-like flaps with counterweight sections and permanent magnets, which use gravity and magnetic attraction to maintain a sealed closure without coil springs, ensuring easy handling and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pedal-operated swing lid is used to seal the container, then ease of operation is improved, but odor containment deteriorates because the lid is not airtight enough
Solution Approach 1:
The closure system is divided into two independent parts: the pedal-operated swing lid for easy access and the locking device with flaps for airtight sealing. This segmentation allows each component to fulfill its specific function without compromising the other.
Solution Approach 2:
The locking device with flaps acts as an intermediary between the swing lid and the container interior, creating an additional sealing barrier that prevents odor escape while allowing the swing lid to remain simple and easy to operate.
2Object-generated harmful factors
If a complex lever mechanism is added to connect the pedal to the locking device, then odor containment is improved, but device complexity increases
Solution Approach 1:
The locking device is designed as a separate, removable insert that can be independently attached to the container. This extraction allows the locking mechanism to be simplified and optimized separately from the pedal mechanism, reducing overall system complexity.
Solution Approach 2:
Instead of using a complex lever mechanism to open the flaps, the design uses the natural weight of the flaps themselves to automatically close and seal them. This inversion of the opening/closing mechanism simplifies the overall system by eliminating the need for complex actuation linkages.
3Reliability
If coil springs are used in the locking device to ensure sealing, then reliability of sealing is improved, but ease of manufacture deteriorates due to additional assembly steps
Solution Approach 1:
The flaps are designed to automatically seal the opening through their own weight and the natural movement of the swing lid, without requiring external spring mechanisms. This self-service approach eliminates complex assembly steps while maintaining reliable sealing.
Solution Approach 2:
The locking device is designed as a simple, removable insert that can be easily manufactured and replaced if needed. By avoiding permanent complex mechanisms like coil springs, the design prioritizes ease of manufacture and replacement over long-term durability of individual components.
4Reliability
If the locking device is permanently integrated into the container, then reliability is improved, but adaptability deteriorates
Solution Approach 1:
The locking device is designed as a universal insert that can be attached to and removed from the container as needed. This allows the system to adapt to different usage scenarios: the locking device can be installed when odor containment is needed and removed when the container should remain simple and easy to clean.
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
The solution provides a cost-effective, durable, and efficient odor-proof mechanism that simplifies handling by minimizing moving parts and mechanical complexity, allowing one-handed operation and effective odor containment.
Implementation Method 1
The position of the hinge axis and the weights of the flap section and the counterweight section, respectively, are designed and arranged such that the flap is in the closed state or returns to this state when no forces other than gravity act on the flap.
Implementation Method 2
the flaps are each provided with at least one permanent magnet in the area of their front edge surfaces in order to hold the flaps in the closed state by means of magnetic attraction
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to an insert for a waste container, comprising a mounting frame 1 with a loading opening 2 for being placed on or into a container body 24 of the waste container, a retaining frame 3 removable from the loading opening 2 for holding a garbage bag 33 or a tubular film, and a locking device 4, which is attached to an underside of the mounting frame 1 below the retaining frame 3 and selectively closes or opens the loading opening 2. The locking device 4 essentially consists of two flaps 5, 5', each pivotably attached to the mounting frame 1 about a hinge axis 15. The flaps 5, 5' are each designed in the manner of a rocker, with a flap section 19 extending from the hinge axis 15 to the front edge surface 7 and a counterweight section 20 extending away from the hinge axis 15 and away from the flap section 19.They are in the closed state or return to this state when no forces other than gravity act on the flap 5, 5'. The invention also relates to a waste container with such an insert.