Airtight device
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Solution Overview
Problem
Existing storage devices such as freezers and refrigerators often suffer from air leaks due to poorly sealed doors, which compromises the preservation of food and medicine, leading to premature decay and waste.
Innovation Solution
An airtight device design featuring a container with an airtight cover, fixing bracket, doors, and pressuring handles, where the fixing bracket includes through holes and guiding slots, and the pressuring handles are pivoted to rotate and apply pressure to the doors, ensuring a tight seal and easy switching between airtight and open states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the doors of storage devices are made simple and easy to open, then the ease of operation is improved, but the sealing performance deteriorates leading to air leaks
Solution Approach 1:
The door structure transitions from a static simple design to a dynamic multi-state system. The door can be in an open state, a closed state with first sealing layer, and a pressed state with second sealing layer. This dynamic transformation allows the door to adapt its sealing performance based on operational requirements while maintaining ease of operation through simple handle actuation.
Solution Approach 2:
The sealing system is divided into two independent sealing layers: a first sealing layer for basic closure and a second sealing layer for enhanced sealing. This segmentation allows each layer to perform its specific function - the first layer provides initial sealing when the door is closed, while the second layer provides additional sealing when the pressing mechanism is activated, thus improving overall sealing performance without compromising operational simplicity.
2Reliability
If a tight sealing structure is implemented to prevent air leaks, then the preservation ability is improved, but the device complexity increases
Solution Approach 1:
The pressing mechanism serves multiple functions: it acts as a structural component of the door assembly, provides the forcing mechanism to activate the second sealing layer, and functions as a indicator system to show when the door is properly sealed. By integrating these functions into a single mechanism, the design improves preservation ability without proportionally increasing device complexity.
Solution Approach 2:
The door assembly is designed to automatically engage the sealing layers and positioning structures without requiring additional manual operations. When the door is closed, the positioning structure automatically guides the door into the correct position to engage the first sealing layer. The pressing mechanism, when activated, automatically engages the second sealing layer, eliminating the need for separate sealing actions and reducing operational complexity.
3Reliability
If multiple sealing layers are added to improve sealing performance, then the air leak prevention is improved, but the ease of operation deteriorates
Solution Approach 1:
The operation of closing the door and activating both sealing layers is merged into a single continuous motion. The door closing action simultaneously engages the first sealing layer through the positioning structure and activates the second sealing layer through the pressing mechanism. This merging eliminates the need for separate operations for each sealing layer, maintaining ease of operation while achieving enhanced air leak prevention through multiple sealing layers.
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 airtight device effectively prevents air and liquid from entering or leaving the container, maintaining the freshness of stored items by ensuring a secure seal, thereby extending the shelf life of food and medicine.
Implementation Method 1
The second section is configured to receive a force for driving the first section to move from below the second top surface to below the first top surface such that the rotation pivot pressures the door
Data Source
AI summary
An airtight device includes a container and an airtight cover on the container, and the airtight cover includes a fixing bracket, a door, and a pressuring handle. The fixing bracket has a through hole and a guiding slot, and the through hole communicates with internal space of the container. The guiding slot has adjacent first and second top surfaces, and the second top surface is higher than the first top surface. The door selectively covers the through hole. The pressuring handle pivoted on the door has a first section, a second section, and a rotating axis between the first and second sections, and the first section rotates relative to the second section. The second section receives a force to drive the first section to move from below the second top surface to below the first top surface such that the rotating axis pressures the door.