Bean grinder device

Abstract

The utility model discloses a bean grinder device which comprises a bean grinder body which comprises an upper body, a lower body and a grinding cutter set, the upper body is arranged at the upper end of the lower body, and a plurality of upper powerful magnets are arranged on the periphery of the lower end of the lower body. The grinding cutter group is arranged in the center of the upper body and the lower body; an upper embedding head is arranged at the upper end of the grinding cutter group; the magnetic powder collecting cup is arranged at the lower end of the lower body, a concave part is arranged in the center of the magnetic powder collecting cup, and a plurality of lower powerful magnets corresponding to the upper powerful magnets of the lower body are arranged at the upper end of the magnetic powder collecting cup; and the bean cabin cover is arranged at the upper end of the upper body, the center of the lower end of the bean cabin cover is provided with an embedded concave upper embedded head which is arranged on the grinding cutter group, one side of the bean cabin cover extends to form a handle rocker arm, and the outer end of the bean cabin cover is provided with a handheld rotating convex block.

Description

Technical Field

[0001] The utility model relates to an electrical device, in particular to a bean grinder device which can be assembled with a grinder body having a grinding knife set and is provided with a magnetic powder collecting cup at the lower end through upper and lower strong magnets. Background Art

[0002] The common coffee bean grinders on the market can only be used manually. Although it takes effort to grind coffee beans, it can relieve stress and bring fun to grinding beans. However, it cannot be immediately converted to electric according to user needs. Therefore, when a large amount of coffee bean powder is needed to brew multiple cups of coffee at the same time, it cannot be achieved. The conventional electric coffee bean grinder is complex and bulky in structure, and the price cost is high. It needs to pull a wire to plug into the mains, and it cannot be immediately converted to manual. In addition, whether it is a manual or electric coffee bean grinder, the powder barrel structure located below the grinding tool is nothing more than a direct fit or a threaded fit. The fit structure separates the two, which is unstable in use and may cause coffee bean powder to splash or overflow. The threaded structure needs to be locked and loosened one by one, which is time-consuming and labor-intensive to use, which greatly reduces its practicality. This is what the industry and consumers are eager to break through. Utility Model Content

[0003] In order to solve the above-mentioned deficiencies of the prior art, the main purpose of the utility model is to provide a coffee bean grinder device, including a coffee bean grinder body with an upper body and a lower body, a grinding knife set, a bean chamber cover with a handle rocker arm and a hand-held rotating protrusion, and a magnetic powder collecting cup; the bean chamber cover is a replaceable electric grinding kit, so as to overcome the difficulties in the prior art.

[0004] The secondary purpose of the utility model is to provide a coffee bean grinder device, which utilizes a handle rocker arm connected to a bean compartment cover and a hand-held rotating protrusion disposed on an upper body to drive a grinding knife group to provide manual grinding of coffee beans, utilizes an electric grinding kit disposed on the upper body to drive the grinding knife group to provide electric grinding of coffee beans, and a magnetic powder collecting cup is disposed at the lower end of the lower body and is fixed to each other by strong magnets at the lower end, the upper end, and the lower end.

[0005] Another object of the present invention is to provide a coffee bean grinder device that is convenient and stable to use, saves time and effort in disassembly and assembly, and can be switched between manual and electric operation according to needs.

[0006] The problem to be solved by the present invention is that the common coffee bean grinders on the market can only be used as manual grinders, but cannot be immediately converted into electric grinders. When a large amount of coffee bean powder is needed to brew multiple cups of coffee at the same time, it cannot be achieved. Conventional electric coffee bean grinders are complex in structure, bulky, and expensive. They need to be plugged into the mains and cannot be converted into manual grinders. Conventional manual or electric coffee bean grinders have a powder barrel structure located below the grinding tool, which is either directly fitted or screwed together with threads. The former will separate the two and make them unstable, and the latter threaded structure takes time and effort to lock and loosen one circle at a time, which greatly reduces its practicality.

[0007] Technical means for solving the problem, in order to achieve the above-mentioned purpose, the utility model provides a coffee bean grinder device, comprising:

[0008] A grinder body, comprising an upper body, a lower body and a grinding knife assembly that are mutually embedded, the upper body is arranged on the upper end of the lower body, a plurality of upper strong magnets are arranged around the lower end of the lower body, the grinding knife assembly is arranged in the center of the upper body and the lower body and has an upper embedding head at the upper end;

[0009] A magnetic powder collecting cup is arranged at the lower end of the lower body of the grinder body, a concave portion for holding ground coffee powder is arranged in the center of the magnetic powder collecting cup, and a plurality of lower strong magnets are arranged at the upper end of the magnetic powder collecting cup corresponding to the upper strong magnet at the lower end of the lower body;

[0010] A bean compartment cover is arranged on the upper end of the upper body of the grinder body, and an embedding recess is arranged in the center of the lower end of the bean compartment cover, and the embedding recess is arranged in the upper embedding head of the grinding knife assembly. A handle rocker arm as a force arm is extended from one side of the bean compartment cover, and a hand-held rotating protrusion is further arranged at the outer end of the handle rocker arm.

[0011] A further optimized technical solution is that the grinding knife group of the utility model includes an inner knife group and an outer knife group, the inner knife group is arranged inside the outer knife group, a power shaft is provided at the upper end of the inner knife group and has the upper insert head at the upper end, the upper and lower sections of the power shaft are respectively provided with a bearing, a compression spring is provided between the bearing located at the lower section and the upper end of the inner knife group, an indicator cover is provided at the lower end of the inner knife group and an adjustment button is provided for adjusting the lifting and lowering of the inner knife group on the outer knife group.

[0012] A further optimized technical solution is that the upper body is provided with an inner through hole for inserting coffee beans and has a fixed tube in the center of the middle section for the power shaft of the grinding knife set to pass through and the upper insert head to protrude, at least two ribs are provided between the fixed tube and the inner side of the inner through hole, the inner through hole of the upper body is located at the lower end of the fixed tube and the rib and has a lower concave portion and a plurality of convex insert blocks around the inner side thereof, and a bearing recess for embedding the bearing of the grinding knife set is respectively provided at the upper and lower ends of the fixed tube.

[0013] A further optimized technical solution is that, in the utility model, a accommodating hole is provided in the center of the lower body and an inverted embedded edge of the outer knife group for stopping the grinding knife group is provided on the upper section thereof, an upper flange corresponding to the lower inner recess of the upper body is convexly provided on the upper end of the lower body, a plurality of concave embedded portions corresponding to the convex embedded block of the lower inner recess are provided on the outer side of the upper flange, a lower embedded flange is further provided at the lower end of the lower body at the outer edge of the accommodating hole, and the lower embedded flange is embedded in the recess of the magnetic powder collecting cup.

[0014] A further optimized technical solution is that the outer diameter of the upper body of the coffee grinder body of the utility model is larger than the outer diameter of the lower body, and the outer diameter of the magnetic powder collecting cup is larger than the outer diameter of the lower body and equal to the outer diameter of the upper body.

[0015] A further optimized technical solution is that the upper body, the lower body and the magnetic powder collecting cup of the coffee grinder body of the utility model are in a triangular shape.

[0016] A further optimized technical solution is that the outer diameters of the upper body, the lower body and the magnetic powder collecting cup of the coffee grinder body of the utility model are equal.

[0017] A further optimized technical solution is that the bean compartment cover of the utility model can be replaced by an electric grinding kit, the lower edge of the electric grinding kit is provided with an outer cover edge that is sleeved on the upper end of the upper body and has a plurality of recesses on the inner side, the upper end of the electric grinding kit is provided with a button for starting and turning the power on and off and a charging interface and is electrically connected to a circuit board, the center of the electric grinding kit is provided with a motor electrically connected to the circuit board and the lower end is provided with an embedding hole corresponding to the upper embedding head at the upper end of the grinding knife group, the electric grinding kit is provided with at least one battery electrically connected to the circuit board and an induction charging device that provides wireless charging.

[0018] A further optimized technical solution is that the outer cover edge of the electric grinding kit of the utility model is sleeved with a sleeve frame, and a plurality of protrusions are arranged on the outer side of the sleeve frame and correspond to the recesses of the outer cover edge.

[0019] Compared with the effects of the prior art, the utility model includes the grinder body including the upper body and the lower body, the grinding knife set, the bean compartment cover having the handle rocker arm and the hand-held rotating protrusion, and the magnetic powder collecting cup; the bean compartment cover can replace the electric grinding kit; thereby, the handle rocker arm and the hand-held rotating protrusion connected to the bean compartment cover are arranged on the upper body and drive the grinding knife set to provide manual grinding of coffee beans, and the electric grinding kit is arranged on the upper body to drive the grinding knife set to provide electric grinding of coffee beans, and the magnetic powder collecting cup is arranged at the lower end of the lower body and is fixed to each other by the upper and lower strong magnets at the lower and upper ends thereof; the convenience and stability of use are effectively improved, the disassembly and assembly are time-saving and labor-saving, and the manual or electric operation can be changed according to the needs, which meets the needs of progress, practicality and users, and its benefits are evident. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional exploded view of the manual operation of the utility model;

[0021] Figure 2 It is a manual three-dimensional combination diagram of the utility model;

[0022] Figure 3 It is a manual combined cross-sectional view of the utility model;

[0023] Figure 4 This utility model Figure 1 Exploded view of the bean pod cover replaced with an electric grinding kit;

[0024] Figure 5 This utility model Figure 4 A three-dimensional composite diagram;

[0025] Figure 6 It is a three-dimensional combination diagram of the upper body, the lower body and the magnetic powder collecting cup of the bean grinder body of the utility model, which have equal outer diameters and are provided with a bean compartment cover;

[0026] Figure 7 This utility model Figure 6 A three-dimensional composite image of the bean pod cover being replaced with an electric grinding kit and set with a frame;

[0027] Figure 8 This is an embodiment diagram of the utility model in which coffee beans are placed on the upper body and ground by the grinding knife set and fall into the magnetic powder collecting cup.

[0028] in,

[0029] 1…Grinding machine

[0030] 11…upper body

[0031] 110…Inner perforation

[0032] 1101…Fixed pipe

[0033] 1102…ribs

[0034] 1103…Bearing recess

[0035] 111…Lower inner concave part

[0036] 112…convex block

[0037] 12…Lower body

[0038] 120…Accommodation hole

[0039] 1201…Inverted edge

[0040] 121…Upper flange

[0041] 122…recessed part

[0042] 123…Strong magnet

[0043] 124…Lower flange

[0044] 13…Grinding knife set

[0045] 131…Internal knife set

[0046] 1311…Power shaft

[0047] 1312…Pelling

[0048] 1313…Upper insert

[0049] 132…External knife set

[0050] 133…Compression spring

[0051] 134…Adjustment knob

[0052] 1341…Indicator cover

[0053] 14…Bean compartment cover

[0054] 140…recessed

[0055] 141…Handle rocker

[0056] 142…Hand-held rotating cam

[0057] 15…Magnetic powder collection cup

[0058] 150…concave

[0059] 151... Strong magnet

[0060] 16…Electric grinding kit

[0061] 160…Charging interface

[0062] 1600...Circuit Board

[0063] 1601…Button

[0064] 161…Outer cover edge

[0065] 1611…embossed

[0066] 162…Motor

[0067] 163…Embedded hole

[0068] 164…Battery

[0069] 165…Inductive charging device

[0070] 17…a frame

[0071] 171…bump. DETAILED DESCRIPTION

[0072] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0073] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 5 and Figure 6 , Figure 7 and Figure 8 The figure is a three-dimensional exploded view of the manual of the utility model, a three-dimensional combined view of the manual of the utility model, a combined cross-sectional view of the manual of the utility model and the utility model Figure 1 The bean pod cover is replaced with an electric grinding kit. Figure 4 The three-dimensional combination diagram of the upper body, the lower body and the magnetic powder collecting cup of the bean grinder of the utility model are equal in outer diameter and are provided with a bean compartment cover, the three-dimensional combination diagram of the utility model Figure 6 The bean container cover is replaced with an electric grinding kit and is equipped with a three-dimensional combination diagram of a casing and an embodiment diagram of the present invention in which coffee beans are placed on the upper body and ground by the grinding knife set and fall into the magnetic powder collecting cup; the bean grinder device of the present invention in a preferred embodiment includes a bean grinder body 1, a magnetic powder collecting cup 15, and a bean container cover 14.

[0074] The aforementioned grinder body 1 comprises an upper body 11, a lower body 12 and a grinding knife assembly 13 which are interlocked with each other. The upper body 11 is arranged at the upper end of the lower body 12. The grinding knife assembly 13 is arranged at the center of the upper body 11 and the lower body 12 and has an upper insert 1313 at the upper end. The grinding knife assembly 13 comprises an inner knife assembly 131 and an outer knife assembly 132. The inner knife assembly 131 is arranged inside the outer knife assembly 132. The upper end of the inner knife assembly 131 is provided with a power shaft 1311 and has the upper insert 1313 at the upper end. The upper and lower sections of the power shaft 1311 are respectively provided with a bearing 1312. The bearing 1312 at the lower section and the inner knife assembly 132 are connected to each other. A compression spring 133 is arranged at the upper end of the knife group 131, and an indicator cover 1341 and an adjustment button 134 for adjusting the lifting and lowering of the inner knife group 131 to adjust the coarseness of the coffee bean grinding of the outer knife group 132 are arranged at the lower end of the inner knife group 131; the upper body 11 is provided with an inner through hole 110 for inserting coffee beans, and a fixing tube 1101 is provided in the middle of the middle section for the power shaft 1311 of the grinding knife group 13 to pass through and the upper insert head 1313 protrudes, and at least two ribs 1102 are arranged between the fixing tube 1101 and the inner side of the inner through hole 110 to provide for strengthening its structural strength, and the inner through hole 110 of the upper body 11 is located between the fixing tube 1101 and the ribs The lower end of the strip 1102 is provided with a lower concave portion 111 and a plurality of convex blocks 112 around the inner side thereof; the upper and lower ends of the interior of the fixing tube 1101 are respectively provided with a bearing concave 1103 for embedding the bearing 1312 of the grinding knife set 13. In this embodiment, the convex blocks 112 of the lower concave portion 111 are radially or symmetrically shaped, but this does not limit the present invention; the center of the lower body 12 is provided with a receiving hole 120 and the upper section thereof has an inverted embedded edge 1201 for stopping the outer knife set 132 of the grinding knife set 13; the upper end of the lower body 12 is convexly provided with an upper flange 121 corresponding to the lower concave portion 111 of the upper body 11, and the upper convex The outer side of the edge 121 is provided with a plurality of recessed portions 122 corresponding to the convex embedded block 112 of the lower inner recess 111, and the lower end of the lower body 12 is located at the outer edge of the accommodating hole 120 and is further provided with a lower embedded flange 124; a plurality of upper strong magnets 123 are provided around the lower end of the lower body 12; in this embodiment, the upper strong magnets 123 of the lower body 12 are radial or symmetrical, but this does not limit the utility model. In this embodiment, the recessed portions 122 of the upper flange 121 of the lower body 12 are radial or symmetrical, but this does not limit the utility model; the outer diameter of the upper body 11 of the grinder body 1 is larger than the outer diameter of the lower body 12 (such as Figure 1 , Figure 2 , Figure 3 shown).

[0075] The aforementioned magnetic powder collecting cup 15 is arranged at the lower end of the lower body 12 of the grinder body 1. The center of the magnetic powder collecting cup 15 is provided with a concave portion 150 corresponding to the accommodating hole 120 of the lower body 12 for holding ground coffee powder. The concave portion 150 is embedded in the lower embedded flange 124 at the lower end of the lower body 12. The upper end of the magnetic powder collecting cup 15 is provided with a plurality of lower strong magnets 151 and corresponding to the upper strong magnets 123 at the lower end of the lower body 12 (such as Figure 1 , Figure 2 , Figure 3 (shown)

[0076] The bean compartment cover 14 is disposed at the upper end of the upper body 11 of the grinder body 1. A recess 140 is disposed at the center of the lower end of the bean compartment cover 14. The recess 140 is disposed at the upper recess 1313 of the upper end of the power shaft 1311 of the grinding knife assembly 13. A handle rocker arm 141 extending from one side of the bean compartment cover 14 as a lever arm is disposed at the outer end of the handle rocker arm 141. A hand-held rotating protrusion 142 is further disposed at the outer end of the handle rocker arm 141. In this embodiment, the handle rocker arm 141 is shaped The shape is inclined and one end is straightly connected to one side of the bean compartment cover 14, and the other end is straightly connected to the handle rocker arm 141. The hand-held rotating protrusion 142 is provided for hand holding to provide a force-saving torque by using the handle rocker arm 141 connected to the bean compartment cover 14 as a force arm. In this embodiment, the upper body 11, the lower body 12 and the magnetic powder collecting cup 15 of the grinder body 1 are triangular in shape, but this does not limit the present invention (such as Figure 1 , Figure 2 , Figure 3 shown).

[0077] The outer diameter of the magnetic powder collecting cup 15 of the utility model is larger than the outer diameter of the lower body 12 of the grinder body 1 and is equal to the outer diameter of the upper body 11 (such as Figure 1 , Figure 2 , Figure 3 The outer diameters of the upper body 11, the lower body 12 and the magnetic powder collecting cup 15 of the grinder body 1 of the utility model are equal (as shown in FIG. Figure 4 , Figure 5 shown).

[0078] Please refer to Figure 4 , Figure 5 and Figure 7As shown, the bean compartment cover 14 of the utility model can replace an electric grinding kit 16. The lower edge of the electric grinding kit 16 is provided with an outer cover edge 161 provided to be sleeved on the upper end of the upper body 11. The upper end of the electric grinding kit 16 is provided with a button 1601 for starting and turning on and off the power and a charging interface 160. The charging interface 160 is a USB in this embodiment, but it does not limit the utility model. It is electrically connected to a circuit board 1600. The electric grinding kit 16 is provided with a motor 162 electrically connected to the circuit board 1600 in the center and provided at the lower end. An embedding hole 163 corresponds to the upper embedding head 1313 at the upper end of the grinding blade assembly 13. The electric grinding kit 16 is provided with at least one battery 164 electrically connected to the circuit board 1600 and an inductive charging device 165 for wireless charging. The battery 164 can be a rechargeable battery, but this does not limit the utility model. The inner side of the outer cover edge 161 is provided with a plurality of embedding recesses 1611, and the outer cover edge 161 of the electric grinding kit 16 can be sleeved with a sleeve frame 17. The outer side of the sleeve frame 17 is provided with a plurality of protrusions 171 corresponding to the embedding recesses 1611 of the outer cover edge 161. To provide an outer diameter of the upper body 11 that fits the grinder body 1.

[0079] Please refer to Figure 8 As shown, when the present invention is used, if manual grinding of coffee beans is desired, the embedding recess 140 of the lower end of the bean compartment cover 14 having the handle rocker arm 141 and the hand-held rotating protrusion 142 only needs to be embedded in the upper embedding head 1313 of the upper end of the grinding knife assembly 13 provided in the center of the grinder body 1, so that the inner knife assembly 131 of the grinding knife assembly 13 can be rotated by holding the hand-held rotating protrusion 142 and rotating it, so that the outer knife assembly 132 can be used to grind the coffee beans into powder, which falls into the magnetic powder collecting cup 15 (such as Figure 8 To remove the magnetic powder collecting cup 15, one only needs to apply a force to separate the lower strong magnet 151 disposed at the upper end from the upper strong magnet 123 at the lower end of the lower body 12 (as shown in FIG. Figure 1 , Figure 2 , Figure 3 and Figure 6 If the electric machine is to be used, the bean compartment cover 14 is replaced with the electric grinding kit 16, and the embedding hole 163 at the lower end of the motor 162 is embedded in the upper embedding head 1313 at the upper end of the grinding knife set 13 provided in the center of the grinder body 1. By pressing the button 1601, the inner knife set 131 of the grinding knife set 13 can be started or stopped to rotate and work with the outer knife set 132 to grind the coffee beans into powder and fall into the magnetic powder collection cup 15 below (as shown in FIG. Figure 4 , Figure 5 and Figure 7As shown in the figure, to take out the magnetic powder collecting cup 15, one only needs to apply a force to separate the lower strong magnet 151 disposed at the upper end from the upper strong magnet 123 disposed at the lower end of the lower body 12; and the outer cover edge 161 at the lower end of the electric grinding kit 16 can be installed with the sleeve frame 17 that can match the outer diameter of the upper body 11 as it becomes smaller.

[0080] The utility model includes a bean grinder body 1 having an upper body 11 and a lower body 12, a grinding knife set 13, a bean compartment cover 14 having a handle rocker arm 141 and a hand-held rotating protrusion 142, and a magnetic powder collecting cup 15; the bean compartment cover 14 can replace the electric grinding kit 16; thereby, the handle rocker arm 141 and the hand-held rotating protrusion 142 connected to the bean compartment cover 14 are arranged on the upper body 11 and drive the grinding knife set 13 to provide manual grinding of coffee beans, and the electric grinding kit 16 is arranged on the upper body 11 to drive the grinding knife set 13 to provide electric grinding of coffee beans, and the lower end of the lower body 12 is provided with the magnetic powder collecting cup 15 and is fixed to each other by the upper and lower strong magnets 123 and 151 at the lower and upper ends thereof; the utility model effectively improves the convenience and stability of use, and the disassembly and assembly saves time and effort, and the manual or electric operation can be changed according to the needs, which meets the needs of progress, practicality and users, and its benefits are evident.

[0081] From the above, it can be seen that the utility model has indeed achieved the desired improved effect by breaking through the previous technical structure, and it is not easy for people familiar with the technology to think of. Moreover, the utility model has not been disclosed before the application. Its progressiveness and practicality obviously meet the application requirements of the creation patent.

[0082] The embodiments described above are only for illustrating the technical ideas and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the patent scope of the utility model. That is, all equivalent changes or modifications made according to the spirit disclosed by the utility model should still be included in the patent scope of the utility model.

Claims

1. A coffee bean grinder device, characterized in that: include: A grinder body, comprising an upper body, a lower body and a grinding knife assembly that are mutually embedded, the upper body is arranged on the upper end of the lower body, a plurality of upper strong magnets are arranged around the lower end of the lower body, the grinding knife assembly is arranged in the center of the upper body and the lower body and has an upper embedding head at the upper end; A magnetic powder collecting cup is arranged at the lower end of the lower body of the grinder body, a concave portion for holding ground coffee powder is arranged in the center of the magnetic powder collecting cup, and a plurality of lower strong magnets are arranged at the upper end of the magnetic powder collecting cup corresponding to the upper strong magnet at the lower end of the lower body; A bean compartment cover is arranged on the upper end of the upper body of the grinder body, and an embedding recess is arranged in the center of the lower end of the bean compartment cover, and the embedding recess is arranged in the upper embedding head of the grinding knife assembly. A handle rocker arm as a force arm is extended from one side of the bean compartment cover, and a hand-held rotating protrusion is further arranged at the outer end of the handle rocker arm.

2. The coffee bean grinder device according to claim 1, characterized in that: The grinding knife group includes an inner knife group and an outer knife group. The inner knife group is arranged inside the outer knife group. A power shaft is provided at the upper end of the inner knife group and has the upper insert head at the upper end. The upper and lower sections of the power shaft are respectively provided with a bearing. A compression spring is provided between the bearing located at the lower section and the upper end of the inner knife group. An indicator cover and an adjustment button for adjusting the lifting of the inner knife group on the outer knife group are provided at the lower end of the inner knife group.

3. The coffee bean grinder device according to claim 2, characterized in that: The upper body is provided with an inner through hole for inserting coffee beans, and in the middle of the middle section there is a fixing tube for the power shaft of the grinding knife set to pass through and the upper insert head protrudes, at least two ribs are provided between the fixing tube and the inner side of the inner through hole, the inner through hole of the upper body is located at the lower end of the fixing tube and the rib and a lower concave portion is provided and a plurality of convex insert blocks are provided around the inner side thereof, and a bearing recess for embedding the bearing of the grinding knife set is respectively provided at the upper and lower ends of the fixing tube.

4. The coffee bean grinder device according to claim 3, characterized in that: The lower body is provided with a receiving hole in the center and has an inverted embedded edge of the outer knife group for stopping the grinding knife group at its upper section. An upper flange corresponding to the lower inner recess of the upper body is convexly provided on the upper end of the lower body. A plurality of concave embedded parts corresponding to the convex embedded block of the lower inner recess are provided on the outer side of the upper flange. The lower end of the lower body is located at the outer edge of the receiving hole and is further provided with a lower embedded flange, which is embedded in the recess of the magnetic powder collecting cup.

5. The coffee bean grinder device according to claim 1, characterized in that: The outer diameter of the upper body of the grinder body is greater than the outer diameter of the lower body, and the outer diameter of the magnetic powder collecting cup is greater than the outer diameter of the lower body and equal to the outer diameter of the upper body.

6. The coffee bean grinder device according to claim 5, characterized in that: The upper body, the lower body and the magnetic powder collecting cup of the coffee grinder body are in a triangular shape.

7. The coffee bean grinder device according to claim 1, characterized in that: The outer diameters of the upper body, the lower body and the magnetic powder collecting cup of the grinder body are equal.

8. The coffee bean grinder device according to claim 7, characterized in that: The upper body, the lower body and the magnetic powder collecting cup of the coffee grinder body are in a triangular shape.

9. The coffee bean grinder device according to any one of claims 1 to 8, characterized in that: The bean compartment cover can be replaced by an electric grinding kit. The lower edge of the electric grinding kit is provided with an outer cover edge that is sleeved on the upper end of the upper body and has a plurality of recesses on the inner side. The upper end of the electric grinding kit is provided with a button for starting and turning the power on and off and a charging interface that is electrically connected to a circuit board. The center of the electric grinding kit is provided with a motor that is electrically connected to the circuit board and the lower end is provided with an embedding hole that corresponds to the upper embedding head at the upper end of the grinding knife set. The electric grinding kit is provided with at least one battery that is electrically connected to the circuit board and an induction charging device that provides wireless charging.

10. The coffee bean grinder device according to claim 9, characterized in that: The outer cover edge of the electric grinding kit is sleeved with a sleeve frame, and the outer side of the sleeve frame is provided with a plurality of protrusions corresponding to the recesses of the outer cover edge.

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