Abstract: A device for grinding coffee beans includes a housing assembly, a shaft assembly, a fixing member, and a brush assembly. The housing assembly has a housing, a supporting member, and an outer grinding member that are arranged in the housing. The shaft assembly has a shaft and an inner grinding member. The inner grinding member, including a ferromagnetic material, is arranged on the shaft. The shaft penetrates through the supporting member. The fixing member fixes the supporting member and the shaft. The brush assembly has a brush base and at least one brush member thereon. The brush base is provided with at least one magnet. When the brush base is fixed to the bottom of the inner grinding member through the magnet, the rotation of the shaft assembly rotates the brush base to brush away coffee powder remaining between the inner grinding member and the outer grinding member.

Abstract: A rocker arm structure of a hand-operated bean grinder includes a crank rocker arm and a folding mechanism. The crank rocker arm has first and second sections of rod body, and the folding mechanism is assembled between the first and second sections of rod body. The folding mechanism includes a first and second bodies assembled with each other. A spring is assembled between the first and second rod bodies, and a guide rail seat and a guide pin are respectively arranged on the first and second bodies. The guide rail seat is arranged on the second assembly port, and is arranged with a guide rail, a positioning groove, and at least one assembly notch. The guide rail has a position for guiding the first section of rod body to rotate 180 degrees from the position to be ground.

Abstract: A rocker arm structure of a hand-operated bean grinder includes a crank rocker arm and a folding mechanism. The crank rocker arm has first and second sections of rod body, and the folding mechanism is assembled between the first and second sections of rod body. The folding mechanism includes a first and second bodies assembled with each other. A spring is assembled between the first and second rod bodies, and a guide rail seat and a guide pin are respectively arranged on the first and second bodies. The guide rail seat is arranged on the second assembly port, and is arranged with a guide rail, a positioning groove, and at least one assembly notch. The guide rail has a position for guiding the first section of rod body to rotate 180 degrees from the position to be ground.

Abstract: A coffee bean grinder is provided, comprising a housing assembly, a shaft component, and a securing member. The shaft component is assembled in the housing assembly. When a coffee bean grinding complex is formed by an inner grinding member of the shaft component and an outer grinding member of the housing assembly, the shaft component and the housing assembly can be easily assembled and secured through the structural configuration of the securing member, and also through which, the shaft component and the housing assembly can also be disassembled for cleaning and maintenance after grinding operation.

Abstract: A coffee bean grinder is provided, comprising a housing assembly, a shaft component, and a securing member. The shaft component is assembled in the housing assembly. When a coffee bean grinding complex is formed by an inner grinding member of the shaft component and an outer grinding member of the housing assembly, the shaft component and the housing assembly can be easily assembled and secured through the structural configuration of the securing member, and also through which, the shaft component and the housing assembly can also be disassembled for cleaning and maintenance after grinding operation.

Abstract: A coffee grinder including a base and a grinding component is provided. The base includes a body part, a first assembly part, and a second assembly part. The first assembly part and the second assembly part are connected to the body part and protrude from one side of the body part. The first assembly part is disposed above the second assembly part and includes a drive shaft. One end of the drive shaft faces the second assembly part. The grinding component includes an outer burr module and an inner burr shaft assembled in the outer burr module. A side surface of the outer burr module is assembled to the second assembly part. The drive shaft of the first assembly part is assembled with one end of the inner burr shaft. One end of the drive shaft drives the inner burr shaft to rotate relative to the outer burr module.