Bean grinder
By mounting the lower and upper ends of the drive shaft onto the bearings of the grinding housing and the bean hopper block respectively in the coffee grinder, a three-point concentric positioning is achieved, solving the problem of radial offset of the drive shaft and improving the uniformity of coffee powder and noise.
CN224387297UActive Publication Date: 2026-06-23GUANGDONG SHUNDE FUKEWANG DESIGN CO LTD
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Patent Information
- Application Number
- CN202520960893.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-23
- Estimated Expiration
- 2035-05-15
AI Technical Summary
Technical Problem
The drive shaft is subjected to radial pressure, which causes radial displacement, affecting the uniformity of coffee powder coarseness and generating noise.
Method used
In a coffee grinder, the lower end of the drive shaft is mounted inside the grinding housing via a set of bearings, and the upper end is mounted inside the bean hopper block via another bearing. This ensures that the drive shaft is on the same central axis, forming a three-point concentric positioning and reducing vibration and offset.
Benefits of technology
It effectively reduces drive shaft vibration and offset, improves the uniformity of coffee powder coarseness, and reduces noise.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model provides a bean grinder which is composed of a bean bin, a grinding shell, a main shell and a powder bin, the main shell and the powder bin are arranged on a base, the bean bin, the grinding shell and the main shell are sequentially arranged, a motor and a main control circuit board are arranged in the main shell, the output end of the motor is connected with the lower end of a driving shaft, and the driving shaft drives a grinding cutter set in the grinding shell to work; the lower side of the driving shaft is installed in the grinding shell through a set of bearings, and the upper end of the driving shaft is installed on a bean bin seat block in the bean bin through another bearing. The lower end of the driving shaft is connected to the motor and then installed on the grinding shell through a set of bearings, the upper end of the driving shaft extends to the bean bin and is installed in the bean bin seat block through another bearing, the bean bin, the bean bin seat block and the grinding shell are located on the same central axis, and the three bearings are also located on the same central axis. Therefore, three-point concentric positioning is formed on the axis of the driving shaft, and shaking offset is reduced to the maximum extent.
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