Modular Blender Blade Gearbox for Safe Disassembly and Cleaning
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Solution Overview
Problem
Existing blenders with bi-directionally rotatable blades are difficult to disassemble, leading to user safety concerns and increased weight during washing, as the blade assembly remains coupled to the gearbox, making it cumbersome and potentially hazardous.
Innovation Solution
A blender design featuring a blade assembly with coaxial main and reverse-rotation shafts, a gearbox assembly with gear transmission, and a case structure that allows easy separation of components, including a gearbox housing within the case to minimize noise and facilitate repair, and oil seals to enhance durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the blade assembly is permanently coupled to the gearbox assembly, then the structural integrity is improved, but the ease of disassembly deteriorates
Solution Approach 1:
The blender is divided into separable modules: the blade assembly can be detached from the container, and the gearbox assembly can be separated from the case. This segmentation allows easy disassembly for cleaning and maintenance while maintaining structural integrity during operation through secure coupling mechanisms.
Solution Approach 2:
The coupling between the blade assembly and container is made dynamic rather than fixed. The blade assembly can be inserted and removed from the container, allowing the system to transition between assembled and disassembled states based on operational needs.
2Stability of the object's composition
If the blade assembly remains coupled to the container during washing, then the structural stability is improved, but the weight of the container increases
Solution Approach 1:
The blade assembly is separated from the container as distinct components that can be independently handled. Users can remove the blade assembly before washing, reducing the container's weight to just water and food, making it easier to carry and wash.
3Ease of operation
If the blade assembly is easily separable from the container, then the ease of operation is improved, but the reliability deteriorates
Solution Approach 1:
The coupling mechanism provides dynamic connectivity - secure during operation to ensure reliability, but easily separable when needed. The blade assembly fits tightly into the container during blending to prevent accidental detachment, yet can be deliberately removed by users.
4Stability of the object's composition
If the gearbox assembly is integrated into the case, then the structural integrity is improved, but the ease of repair deteriorates
Solution Approach 1:
The gearbox assembly is separated from the case as an independent module. This allows the gearbox to be easily removed and replaced for repair or maintenance without damaging or disassembling the case, while maintaining structural integrity when assembled.
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
Enables safe and efficient disassembly of the blade assembly from the container, reduces the weight of the container during washing, minimizes operational noise, and improves component durability and repairability.
Implementation Method 1
a plurality of gears configured to convert the forward rotation of the main gear shaft to reverse rotation
Implementation Method 2
an oil seal configured to prevent leakage of a lubricating oil and ingress of external contaminants
Data Source
AI summary
A blender includes a blade assembly including a main blade shaft that is coupled to a first blade and a first main coupler so as to rotate in a forward direction and a reverse-rotation blade shaft that is coupled to a second blade and a first reverse-rotation coupler so as to rotate in a reverse direction, a gearbox assembly including a main gear shaft coupled to a second main coupler, which is engaged with the first main coupler, so as to rotate in the forward direction, a plurality of gears configured to convert the forward rotation of the main gear shaft to reverse rotation, and a second reverse-rotation coupler configured to transmit the reverse rotation transmitted through the plurality of gears to the first reverse-rotation coupler, and a case that has the gearbox assembly provided therein.