Preservation Container Lid Assembly with Rotating Knob Mechanism
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Solution Overview
Problem
Existing preservation containers are complex in construction, difficult to disassemble, and have unreliable opening or closing mechanisms, making them hard to clean and seal effectively.
Innovation Solution
A preservation container design featuring a lid assembly with a knob that allows easy sealing and disassembly, utilizing a vertical moving unit, spring mechanism, and packing for secure closure and easy release, enabling parts to be disassembled for cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hermetic sealing cover or lid is used to seal the container, then the quality and freshness of food is maintained, but the construction becomes complicated and it is difficult to completely disassemble the container
Solution Approach 1:
The lid assembly is divided into multiple detachable components: upper lid, intermediate lid, and lower lid. This segmentation allows each part to be separately cleaned and maintained while collectively providing hermetic sealing when assembled. The packing member is also separable from the container body, enabling complete disassembly for thorough cleaning.
Solution Approach 2:
A packing member (sealing element) is introduced as an intermediary component between the lid assembly and container body to achieve hermetic sealing. This separate sealing component can be independently replaced or cleaned without disassembling the entire container structure, simplifying maintenance while maintaining sealing reliability.
2Ease of operation
If a button-pushing mechanism is used to open or close the container, then the container can be sealed, but it is complicated in construction and difficult to completely disassemble
Solution Approach 1:
The complex button-pushing mechanism is replaced by a simpler rotating knob mechanism. The knob rotates to move the vertical moving unit, which directly actuates the packing member to engage or disengage from the container body. This extraction of unnecessary mechanical complexity simplifies the overall construction while maintaining ease of operation.
3Ease of operation
If a knob-turning mechanism is used to seal or release the container, then the sealing can be achieved, but the opening or closing operation is not reliable
Solution Approach 1:
A spring member is incorporated into the vertical moving unit to provide elastic force that ensures reliable engagement of the packing member with the container body. The spring cushions the movement and maintains constant sealing pressure, preventing unreliable sealing that could occur with a purely mechanical rigid connection. This elastic element compensates for manufacturing tolerances and wear over time.
4Reliability
If the container is designed with multiple coupled parts for sealing, then sealing is achieved, but it is difficult to clean the interior of the container
Solution Approach 1:
The lid assembly is segmented into upper lid, intermediate lid, and lower lid components that can be completely disassembled from each other. The packing member is also separable from the container body. This complete segmentation allows every surface that contacts food to be accessed and cleaned, eliminating hard-to-reach areas created by integrated designs.
Solution Approach 2:
The packing member serves as a separate intermediary sealing component that can be independently removed and cleaned. This separation allows the packing member to be thoroughly cleaned or replaced without disassembling the entire container, making maintenance simple while still providing effective sealing when installed.
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 container can be easily sealed and unsealed by turning the knob, allowing for complete disassembly and easy cleaning, enhancing usability and maintenance.
Implementation Method 1
a spring fitted over the vertical moving unit in such a way as to be in contact with the bottom of the upper cover
Implementation Method 2
when the knob is turned counterclockwise, the pin moves down along the inclined surface, so that an elastic force of the spring is restored
Data Source
AI summary
Disclosed herein is a preservation container having a container body and a lid assembly. The lid assembly includes an upper cover, a knob provided on a top of the upper cover and rotated by a user, a vertical moving unit coupled to the upper cover and moved up and down by a rotation of the knob, an intermediate cover detachably coupled to a bottom of the upper cover and having in a central portion thereof a hole through which the vertical moving unit is exposed to an outside, a lower cover coupled to the vertical moving unit, and a packing fitted into a groove which is formed in a top of the lower cover and sliding along a bottom of the intermediate cover to be in close contact with an inner surface of the container body, when the vertical moving unit moves up.