Hand-Held Grinder Adjusting Ring for Top-Mounted Fineness Control
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Solution Overview
Problem
Existing hand-held grinders face inconvenience and cumbersome adjustment due to limited bottom space, making it difficult to adjust grind fineness conveniently.
Innovation Solution
A hand-held grinder design featuring an adjusting ring that adjusts the height difference between outer and inner grinding heads by rotating, allowing for convenient fineness adjustment through a connecting rod system with bearings and locating rings for stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the grinder is adjusted by placing it upside down to access the gear at the bottom, then the gear can be adjusted, but the operation is inconvenient and the adjustment is cumbersome due to limited bottom space
Solution Approach 1:
The patent inverts the traditional adjustment mechanism location from the bottom of the grinder to the top. The adjusting ring is positioned on the top surface of the grinding chamber, allowing users to adjust grind fineness by rotating the ring while the grinder is in its normal upright position, eliminating the need to flip the device upside down for adjustment.
Solution Approach 2:
The patent introduces an adjusting ring as an intermediary component that mediates between the user's rotational input and the grinding mechanism. The adjusting ring threadedly connects to the cartridge and controls the axial position of the inner grinding head, providing a user-friendly interface for fineness adjustment without requiring direct manipulation of the gear mechanism.
2Adaptability or versatility
If the adjusting ring is threadedly connected to the cartridge, then the height difference between grinding heads can be adjusted, but the structure becomes more complex
Solution Approach 1:
The patent utilizes threaded connection geometry to convert rotational motion into axial displacement. By rotating the adjusting ring, the axial position of the inner grinding head changes, thereby adjusting the gap between the inner and outer grinding heads. This provides continuous variability in grind fineness through a simple rotational operation.
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 smooth and convenient adjustment of grind fineness with improved operational ease and stability, ensuring consistent grinding performance without the need for re-adjustment after cleaning.
Implementation Method 1
the adjusting ring is threadedly connected to the cartridge; the adjusting ring is configured to drive the connecting rod to move up, thereby adjusting a height difference between the outer grinding head and the inner grinding head
Data Source
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AI summary
The present utility model provides a hand-held grinder, including a cartridge with an inner cavity, where an adjusting ring is provided on the cartridge; the adjusting ring is sleeved on the cartridge; the adjusting ring is threadedly connected to the cartridge; a mounting sleeve and a grinding assembly are provided in the cartridge; the grinding assembly includes an outer grinding head and an inner grinding head; the outer grinding head is fixedly connected to the cartridge; the inner grinding head is connected to a top cover through a connecting rod; the connecting rod extends through the mounting sleeve; at least one first connecting plate is provided between the mounting sleeve and the cartridge; two ends of the first connecting plate are respectively connected to an outer wall of the mounting sleeve and an inner wall of the cartridge; the connecting rod is connected to the inner grinding head; and the adjusting ring is configured to drive the connecting rod to move up, thereby adjusting a height difference between the outer grinding head and the inner grinding head. The hand-held grinder provided by the present utility model has the following advantages: With the design of the adjusting ring, the present utility model can adjust the height difference between the outer grinding head and the inner grinding head by rotating the adjusting ring, thereby adjusting the grind fineness, and achieving convenient and smooth operation.