Handheld household grinder
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Solution Overview
Problem
Existing household grinders are complex in structure, costly, and difficult to clean due to their intricate design, which complicates operation and increases the risk of seasoning residue accumulation.
Innovation Solution
A handheld grinder with a simplified structure featuring a grinding rod and through hole with a tapered face for automatic seasoning collection, a stress block for easy operation, and a reset spring for one-handed use, along with a closed working cavity to prevent dust and oil stains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electric motors or rocker-arm mechanisms are used to drive crushing blades or rollers, then grinding function is achieved, but device complexity and cost increase
Solution Approach 1:
The patent extracts and eliminates all motorized components, transmission mechanisms, and complex drive systems from traditional grinders. Instead, it uses a simple handheld oscillating motion to drive the grinding rod back and forth, achieving the grinding function through direct mechanical action without any intermediate transmission components.
Solution Approach 2:
Instead of using a motor to rotate blades that cut and crush materials, this patent inverts the approach by using a rod that oscillates back and forth to press and grind materials against a stationary surface. The motion direction and mechanism type are completely reversed from conventional designs.
2Reliability
If complex drive components are included, then grinding capability is improved, but operation simplicity deteriorates
Solution Approach 1:
All complex drive components such as gears, belts, and motors are extracted from the system. The grinding capability is maintained through a simple oscillating motion that directly moves the grinding rod, making the device as easy to operate as holding and moving a stick.
3Reliability
If intricate structural design is used, then grinding precision is improved, but cleaning convenience deteriorates
Solution Approach 1:
The housing is segmented into separable parts including a removable bottom cover and an detachable grinding rod. This segmentation allows each component to be easily accessed and cleaned separately, eliminating the cleaning difficulties associated with intricate integrated designs while maintaining grinding precision through the fitted interfaces between segments.
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 simplified design reduces component complexity, lowers costs, and allows for easy operation with one hand while preventing contamination and facilitating cleaning.
Implementation Method 1
A reset spring is arranged between the stress block and the housing, with its two ends respectively abutting against the housing and the stress block
Implementation Method 2
The lower end face where the through hole is located in the accommodating cavity sinks downwards in the vertical direction to form a tapered face, with its small opening end mating with the through hole. By virtue of the tapered face, large-grained seasonings in the accommodating cavity automatically gather into the through hole.
Implementation Method 3
when the grinding rod drives the coarse surface on the external lateral wall of the grinding rod to move into the through hole, the clearance between the coarse surface and the internal lateral wall of the through hole forms a grinding space for the materials to be ground
Data Source
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AI summary
The present disclosure provides a handheld household grinder, which comprises a housing having an accommodating cavity and a grinding rod is arranged in the accommodating cavity of the housing; the upper portion of the grinding rod penetrates through the housing until the grinding rod is partially exposed out of the accommodating cavity; a through hole is formed in the corresponding location of the housing underneath the grinding rod along the length direction; the lower portion of the grinding rod penetrates out of the accommodating cavity via the through hole or resets into the accommodating cavity via the through hole; the external lateral wall, proximal to the lower portion of the grinding rod is provided with a coarse surface; when the grinding rod drives the coarse surface on the external lateral wall of the grinding rod to move into the through hole, the clearance between the coarse surface and the internal lateral wall of the through hole forms a grinding space where materials are ground. The grinding of materials is completed by relative movement of the coarse surface on the grinding rod and the internal lateral wall of the through hole to achieve a simple operation. With a simple structure, a reduced cost and simple and reliable operation are achieved.