Juice Extractor Elastic Control Cap for Residue Discharge Sealing
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Solution Overview
Problem
Conventional juice extractors face issues with juice being easily discharged through small spaces between the feed screw and control parts, leading to suboptimal juice extraction ratios due to the hard cylindrical control part being pushed open, allowing juice to escape alongside residue.
Innovation Solution
A juice extractor design featuring a soft elastic body between the feed screw and control cap, with a ring shape and integrated control cap, controls residue discharge force by compressing the elastic body, preventing juice discharge through non-residue pathways and maximizing extraction ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a hard cylindrical control part is used to compress residue for discharge, then residue can be effectively discharged through the space between the feed screw and control part, but the hard control part is pushed open by residue flow, creating peripheral spaces that allow juice to leak
Solution Approach 1:
The patent replaces the hard cylindrical control part with a soft elastic body that has flexible compression capabilities. The soft elastic body can deform to accommodate residue flow while maintaining sealing contact with the feed screw, preventing juice leakage through peripheral spaces. The elasticity allows the body to be pushed by residue for discharge while recovering its shape to close any gaps.
Solution Approach 2:
The patent changes the physical parameter of the control part from hard and rigid to soft and elastic. This parameter change allows the control part to dynamically adapt its shape and compression force based on residue flow conditions, maintaining both effective residue discharge and juice sealing without the push-open problem of hard materials.
2Object-generated harmful factors
If the space between the feed screw and control part is reduced to prevent juice leakage, then juice extraction ratio improves, but residue discharge becomes difficult
Solution Approach 1:
The patent introduces dynamic adaptability through the soft elastic body that can change its compression state based on operating conditions. During residue discharge, the elastic body is temporarily pushed forward to create discharge paths. During normal operation, it maintains sealing contact. This dynamic behavior resolves the contradiction between maintaining small spaces for juice prevention and creating discharge paths when needed.
Solution Approach 2:
The soft elastic body automatically adjusts its position and compression force in response to residue flow pressure without external control. When residue pressure builds up, the elastic body is naturally pushed forward to open discharge paths. When pressure decreases, it returns to sealing position. This self-regulating mechanism eliminates juice leakage while ensuring residue discharge capability.
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 soft elastic body effectively directs residue through small spaces while preventing juice leakage, achieving maximum juice extraction for various input materials by controlling the residue discharging force and closing the ring-shaped space between the control part and feed screw.
Implementation Method 1
a soft elastic body installed between an end of the feed screw and a cylindrical control part of the control cap through which residue is discharged
Data Source
AI summary
A juice extractor, which can prevent juice from being easily discharged via a very small part of a space defined between a feed screw and a hard cylindrical control part of a control cap even when residue is being discharged therethrough, thereby realizing the maximum juice extraction ratio for each different kind of input material.


