Bean grinding mechanism and bean grinder

Abstract

Embodiments of the present application disclose a bean grinding mechanism and a bean grinder. The bean grinding mechanism comprises a grinding cup, a connecting assembly, a first grinding blade, and a first anti-rotation structure, the bottom of the grinding cup being provided with a positioning hole; the first grinding blade is sleeved in the positioning hole, and the first grinding blade is connected to the grinding cup by means of the connecting assembly; and the first anti-rotation structure is provided between the first grinding blade and the inner wall of the positioning hole, and the first anti-rotation structure is used for limiting the movement of the first grinding blade during operation. According to the bean grinding mechanism of the present application, since the first grinding blade is connected to the grinding cup by means of the connecting assembly, the first anti-rotation structure can be configured between the first grinding blade and the inner wall of the positioning hole without affecting the assembly of the first grinding blade and the grinding cup. The first anti-rotation structure can limit the movement of the first grinding blade during operation, thus effectively preventing the first grinding blade from jumping, twisting, etc. during the grinding process, greatly improving the stability of the first grinding blade during operation, achieving higher grinding precision and producing more uniform ground powder.

Description

Coffee grinding mechanism and coffee grinder Technical Field

[0001] This application relates to the field of coffee grinding equipment technology, and in particular to a coffee grinding mechanism and a coffee grinder. Background Technology

[0002] Existing coffee grinders typically use a first and a second grinding blade together for grinding. However, since the first grinding blade in existing grinders is directly mounted to the grinding cup using a rotating fixation method (such as snap-fit ​​or threaded fixation), there is no way to set an anti-rotation device in the positioning hole of the grinding cup to restrict the rotation of the first grinding blade. As a result, the first grinding blade is prone to jumping or twisting in the positioning hole during operation, leading to uneven particle size of the ground coffee. Utility Model Content

[0003] Therefore, it is necessary to provide a grinding mechanism and grinder that can ensure the uniform particle size of the ground powder.

[0004] A coffee grinding mechanism, comprising:

[0005] A grinding cup, wherein a positioning hole is provided at the bottom of the grinding cup;

[0006] Connection components;

[0007] A first grinding tool, which is fitted into the positioning hole and connected to the grinding cup via the connecting assembly; and

[0008] A first anti-rotation structure is disposed between the first grinding tool and the inner wall of the positioning hole. The first anti-rotation structure is used to restrict the movement of the first grinding tool during the working process.

[0009] The grinding cup includes a cup body and a cup base. The cup base is disposed at the bottom of the cup body and is provided with the positioning hole. The first grinding blade is disposed at the bottom of the cup body through the connecting component.

[0010] The connecting assembly includes a first connecting frame, a second connecting frame, and a third connecting frame. The cup body is connected to the first connecting frame, the first grinding blade is connected to the second connecting frame, and the third connecting frame is rotatably connected to the cup seat. The third connecting frame is threadedly engaged with the second connecting frame so that the position of the first grinding blade connected to the second connecting frame in the axial direction of the first grinding blade can be adjusted by rotating the third connecting frame. The first connecting frame can hold the third connecting frame to restrict the movement of the third connecting frame in its own axial direction.

[0011] In one embodiment, the first anti-rotation structure is positioned close to the center of the first grinding tool.

[0012] In one embodiment, a second anti-rotation structure is further included. The second anti-rotation structure is located outside the positioning hole and disposed between the first grinding tool and the connecting assembly. The second anti-rotation structure is used to limit the movement of the first grinding tool during operation.

[0013] In one embodiment, the first anti-rotation structure includes an anti-rotation plane and / or an anti-rotation curved surface. In one embodiment, the number of the first anti-rotation structures is at least two.

[0014] In one embodiment, at least two of the first anti-rotation structures are distributed circumferentially along the first grinding tool.

[0015] In one embodiment, the first anti-rotation structure includes an anti-rotation rib and an anti-rotation groove. The anti-rotation rib is provided on one of the first grinding blade and the inner wall of the positioning hole, and the anti-rotation groove is provided on the other of the first grinding blade and the inner wall of the positioning hole. The anti-rotation rib and the anti-rotation groove abut against each other.

[0016] In one embodiment, the height A of the first anti-rotation structure in the axial direction of the first grinding tool is ≥2mm.

[0017] In one embodiment, the distance B between the first anti-rotation structure and the bottom end face of the first grinding tool in the axial direction of the first grinding tool is ≦3mm.

[0018] In one embodiment, the first grinding tool is snap-fitted to or integrally formed with the second connecting frame;

[0019] And / or, the cup body and the first connecting bracket are fixedly connected by threaded fasteners or integrally formed.

[0020] In one embodiment, a rotating housing is also included, which is fitted over the outside of the cup holder and connected to the third connecting bracket.

[0021] A coffee grinder includes the aforementioned grinding mechanism.

[0022] In one embodiment, the coffee grinder is a coffee machine with a coffee grinding function.

[0023] In the aforementioned grinding mechanism, since the first grinding blade is connected to the grinding cup via a connecting component, a first anti-rotation structure can be configured between the first grinding blade and the inner wall of the positioning hole without affecting the assembly of the first grinding blade and the grinding cup. This first anti-rotation structure can restrict the movement of the first grinding blade during operation, thereby ensuring that the first grinding blade will not rotate during operation and that the center of the first grinding blade will not shift. This effectively prevents the first grinding blade from jumping or twisting during the grinding process, greatly improving the stability of the first grinding blade during operation, resulting in higher grinding precision and more uniform powder output. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 is a cross-sectional view of a coffee grinder in one embodiment;

[0026] Figure 2 is a cross-sectional view of the grinding mechanism of a coffee grinder in one embodiment;

[0027] Figure 3 is a cross-sectional view of the grinding mechanism of a coffee grinder in one embodiment from another perspective;

[0028] Figure 4 is a schematic diagram of the grinding mechanism of a coffee grinder in one embodiment. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] As shown in Figure 1, this application provides a coffee grinder 10, which is used to grind beans into powder. The beans can be coffee beans, soybeans, black beans, etc. In an optional embodiment, the coffee grinder 10 can be a coffee machine with a bean grinding function, in which case the beans are specifically coffee beans.

[0033] As shown in Figures 2 and 3, the coffee grinder 10 specifically includes a grinding mechanism 100, which includes a grinding cup 110, a connecting assembly 120, a first grinding blade 130, and a first anti-rotation structure 140. The bottom of the grinding cup 110 is provided with a positioning hole 111. The first grinding blade 130 is fitted into the positioning hole 111 and is connected to the grinding cup 110 through the connecting assembly 120. The first anti-rotation structure 140 is disposed between the first grinding blade 130 and the inner wall of the positioning hole 111, and is used to restrict the movement of the first grinding blade 130 during operation.

[0034] In the aforementioned grinding mechanism 100, since the first grinding blade 130 is connected to the grinding cup 110 via the connecting component 120, a first anti-rotation structure 140 can be configured between the first grinding blade 130 and the inner wall of the positioning hole 111 without affecting the assembly of the first grinding blade 130 and the grinding cup 110. This first anti-rotation structure 140 can restrict the movement of the first grinding blade 130 during the working process, thereby ensuring that the first grinding blade 130 will not rotate during the working process and that the center of the first grinding blade 130 will not shift. This effectively prevents the first grinding blade 130 from jumping or twisting during the grinding process, greatly improving the stability of the first grinding blade 130 during the working process, resulting in higher grinding precision and more uniform powder output.

[0035] Preferably, the first anti-rotation structure 140 is positioned close to the center of the first grinding blade 130. This arrangement makes the positioning of the first grinding blade 130 more stable, thereby effectively preventing the first grinding blade 130 from jumping or twisting during the grinding process. This further improves the stability of the first grinding blade 130 during operation, resulting in higher grinding precision and more uniform powder output.

[0036] As shown in Figure 2, in an optional embodiment, the inner diameter of the first grinding blade 130 decreases and then increases from top to bottom. The center position of the first grinding blade 130 is the position with the smallest inner diameter, that is, the position with the finest grinding degree. It should be noted that the final grinding uniformity of the powder is also controlled by the position with the finest grinding degree of the first grinding blade 130.

[0037] Furthermore, a grinding rib 132 is provided on the inner side wall of the first grinding cutter 130. There are multiple grinding ribs 132, which are evenly distributed along the circumference of the first grinding cutter 130.

[0038] Optionally, the first anti-rotation structure 140 includes an anti-rotation plane and / or an anti-rotation curved surface. Specifically, as shown in FIG4, the first anti-rotation structure 140 includes a first anti-rotation plane 141 and a second anti-rotation plane 142. Both the first anti-rotation plane 141 and the second anti-rotation plane 142 are arranged parallel to the axial direction of the first grinding tool 130. The first grinding tool 130 has the first anti-rotation plane 141 on the side facing the positioning hole 111, and the inner wall of the positioning hole 111 has the second anti-rotation plane 142. The first anti-rotation plane 141 and the second anti-rotation plane 142 abut against each other to restrict the movement of the first grinding tool 130 during the working process.

[0039] Specifically, the first anti-rotation structure 140 may further include a first anti-rotation curved surface and a second anti-rotation curved surface. The first anti-rotation curved surface is provided on the side of the first grinding tool 130 facing the positioning hole 111, and the second anti-rotation curved surface is provided on the inner wall of the positioning hole 111. The first anti-rotation curved surface and the second anti-rotation curved surface abut against each other to restrict the movement of the first grinding tool 130 during the working process.

[0040] As shown in Figure 4, optionally, the number of the first anti-rotation structure 140 is at least two to ensure the stability of the first grinding tool 130 during operation. In this embodiment, the number of the first anti-rotation structure 140 is four. It is understood that in other embodiments, the number of the first anti-rotation structure 140 can be one, two, three, or more than four. The specific setting method can be reasonably selected according to the actual situation.

[0041] At least two first anti-rotation structures 140 are distributed circumferentially along the first grinding tool 130. In this embodiment, the four first anti-rotation structures 140 are arranged opposite each other in pairs.

[0042] Optionally, the first anti-rotation structure 140 includes an anti-rotation rib and an anti-rotation groove. One of the inner walls of the first grinding tool 130 and the positioning hole 111 is provided with an anti-rotation rib, and the other of the inner walls of the first grinding tool 130 and the positioning hole 111 is provided with an anti-rotation groove. The anti-rotation rib and the anti-rotation groove abut against each other to restrict the movement of the first grinding tool 130 during operation. It should be noted that the specific structure of the first anti-rotation structure 140 in this invention is not limited to this; any mechanical structure capable of restricting the movement of the first grinding tool 130 during operation is acceptable.

[0043] As shown in Figure 1, the coffee grinder 10 further includes a main unit 200 and a second grinding blade 300. The grinding cup 110 is detachably mounted on the main unit 200, and the second grinding blade 300 is rotatably mounted on the main unit 200. Specifically, the first grinding blade 130 is sleeved on the outside of the second grinding blade 300. The second grinding blade 300 is used to cooperate with the first grinding blade 130 to perform coffee grinding. The first grinding blade 130 can move relative to the second grinding blade 300 along the axial direction of the first grinding blade 130 to change the coffee grinding gap 101 between the first grinding blade 130 and the second grinding blade 300, thereby enabling the coffee grinder 10 to grind powder of different particle sizes.

[0044] Optionally, the height A of the first anti-rotation structure 140 in the axial direction of the first grinding blade 130 is ≥2mm. Specifically, the axial adjustment height of the first grinding blade 130 in the industry is 2.0~3.5mm. Therefore, by setting the height A of the first anti-rotation structure 140 in the axial direction of the first grinding blade 130 to ≥2mm, it is ensured that the grinding gap 101 between the first grinding blade 130 and the second grinding blade 300 can cover all particle sizes of powders in the industry.

[0045] Optionally, the distance B between the bottom end face of the first anti-rotation structure 140 and the first grinding blade 130 in the axial direction of the first grinding blade 130 is ≤3mm. Specifically, the axial adjustment height of the first grinding blade 130 is 2.0~3.5mm in the industry. Theoretically, the closer the first anti-rotation structure 140 is to the bottom end face of the first grinding blade 130, the more stable the first grinding blade 130 will be during the operation of the grinding mechanism 100, the higher the grinding accuracy, and the more uniform the ground powder.

[0046] To further improve the stability of the first grinding blade 130 during operation, the grinding mechanism 100 also includes a second anti-rotation structure 150. The second anti-rotation structure 150 is located outside the positioning hole 111 and is disposed between the first grinding blade 130 and the connecting assembly 120. The second anti-rotation structure 150 is used to limit the movement of the first grinding blade 130 during operation. Specifically, the specific structure of the second anti-rotation structure 150 can be referred to the specific structure of the first anti-rotation structure 140, and will not be described in detail here.

[0047] As shown in Figures 2 and 3, in one embodiment, the grinding cup 110 includes a cup body 112 and a cup base 113. The cup base 113 is disposed at the bottom of the cup body 112 and is detachably disposed on the host 200. The cup base 113 is provided with a positioning hole 111. The first grinding blade 130 is disposed at the bottom of the cup body 112 through a connecting component 120.

[0048] As shown in Figures 2 and 3, the connecting assembly 120 further includes a first connecting frame 121, a second connecting frame 122, and a third connecting frame 123. The cup body 112 is connected to the first connecting frame 121, the first grinding blade 130 is connected to the second connecting frame 122, and the third connecting frame 123 is rotatably connected to the cup seat 113. The third connecting frame 123 is threadedly engaged with the second connecting frame 122 so that the position of the first grinding blade 130 connected to the second connecting frame 122 in the axial direction can be adjusted by rotating the third connecting frame 123. The first connecting frame 121 can hold the third connecting frame 123 to restrict the movement of the third connecting frame 123 in its own axial direction.

[0049] Specifically, by rotating the third connecting frame 123, the first grinding blade 130 connected to the second connecting frame 122 can be driven to move up and down along its own axial direction, thereby changing the position of the first grinding blade 130 in its own axial direction, and thus changing the grinding gap 101 formed between the first grinding blade 130 and the second grinding blade 300, so that the coffee grinder 10 can grind powder of different particle sizes. In addition, by the first connecting frame 121 pressing the third connecting frame 123 axially, the third connecting frame 123 can only rotate around its own axial direction and cannot move along its own axial direction, thereby ensuring that the third connecting frame 123, the second connecting frame 122 and the first grinding blade 130 cannot move upward during the operation of the coffee grinder 100, thereby ensuring that the grinding gap 101 between the first grinding blade 130 and the second grinding blade 300 remains unchanged, and thus ensuring that the particle size of the ground powder is uniform.

[0050] In this embodiment, the first connecting frame 121, the second connecting frame 122, and the third connecting frame 123 are all disposed inside the cup holder 113. The first connecting frame 121, the second connecting frame 122, and the third connecting frame 123 are coaxially arranged. The third connecting frame 123 is screwed onto the outside of the second connecting frame 122, and the second connecting frame 122 is sleeved onto the outside of the first grinding tool 130. The second anti-rotation structure 150 is disposed between the first grinding tool 130 and the second connecting frame 122.

[0051] In one embodiment, the first grinding blade 130 is snap-fitted to the second connecting bracket 122 or integrally formed. Further, the cup body 112 is fixedly connected to the first connecting bracket 121 by threaded fasteners or integrally formed.

[0052] As shown in Figure 3, the grinding mechanism 100 further includes a rotating housing 160, which is fitted onto the outside of the cup holder 113 and connected to the third connecting frame 123. By driving the rotating housing 160 and the third connecting frame 123 connected to the rotating housing 160 to rotate, the first grinding blade 130 connected to the second connecting frame 122 is driven to move up and down along its own axis. Specifically, the cup body 112 is fitted onto the outside of the rotating housing 160, and the cup body 112 is supported on the rotating housing 160. That is, the rotating housing 160 can play a certain role in providing auxiliary support for the cup body 112, improving the installation stability of the cup body 112.

[0053] As shown in Figure 4, in one embodiment, a handle 162 is provided on the outer wall of the rotating housing 160 for driving the rotating housing 160 to rotate, so as to apply a force to drive the rotating housing 160 to rotate, thereby facilitating the adjustment of the grinding gap 101. The shape of the handle 162 is not limited, as long as it is designed to facilitate the application of force and twisting.

[0054] As shown in Figure 3, furthermore, a discharge port 114 is provided at the bottom of the cup body 112, and the discharge port 114 is correspondingly provided with the first grinding blade 130; specifically, there are multiple discharge ports 114, which are spaced apart at the bottom of the cup body 112. By providing multiple discharge ports 114, the bean dispensing efficiency is improved. Further, multiple baffles 115 are spaced apart at the bottom of the cup body 112, and a discharge port 114 is formed between two adjacent baffles 115. The sidewalls of the baffles 115 facing the discharge port 114 constitute the boundary of the discharge port 114. Further, a connecting post 116 is also provided on the inner side of the bottom of the cup body 112. The connecting post 116 is located on the central axis of the cup body 112, and multiple baffles 115 are spaced apart on the outer periphery of the connecting post 116.

[0055] Optionally, the grinder 10 also includes a movable door, which is rotatably mounted on the cup body 112 and corresponding to the outlet 114. The movable door can rotate relative to the cup body 112 to open or close the outlet 114.

[0056] Optionally, the coffee grinder 10 also includes a rotary reset device, which may be, but is not limited to, a torsion spring. The rotary reset device is disposed between the cup body 112 and the movable door, and is used to keep the outlet 114 of the movable door closed when no external force is applied. By setting a rotary reset device between the cup body 112 and the movable door, the rotary reset device can keep the outlet 114 of the movable door closed when no external force is applied. This not only has a simple and reliable structure, but also ensures that when the coffee grinding mechanism 100 is applied to the coffee grinder 10, the movable door will automatically close the outlet 114 after the cup holder 113 is removed from the main unit 200 of the coffee grinder 10, preventing coffee leakage. At the same time, it also ensures that the movable door cannot be easily opened by hand after the cup holder 113 is removed from the main unit 200 of the coffee grinder 10.

[0057] As shown in Figure 3, further, an inner cover 117 is provided inside the cup body 112, and the inner cover 117 is disposed on the connecting post 116. The inner cover 117 is used to limit the jumping of the beans during the grinding process. Further, there is a bean outlet gap 118 between the inner cover 117 and the inner wall of the cup body 112; the cross-sectional area of ​​the inner cover 117 is smaller than the cross-sectional area of ​​the cup body 112, so as to ensure that the beans can enter the discharge port 114 through the bean outlet gap 118 for feeding.

[0058] As shown in Figure 1, the coffee grinder 10 further includes a power mechanism 400, which is connected to the second grinding blade 300. The power mechanism 400 drives the second grinding blade 300 to rotate, so that the second grinding blade 300 cooperates with the first grinding blade 130 to perform the coffee grinding operation. Furthermore, the main unit 200 is provided with a grinding chamber 210, in which both the second grinding blade 300 and the first grinding blade 130 are disposed. Specifically, the side of the cup holder 113 away from the cup body 112 is detachably disposed within the grinding chamber 210.

[0059] Optionally, the power mechanism 400 includes a power motor 410 and a drive shaft 420. The power motor 410 is connected to the drive shaft 420. Part of the drive shaft 420 extends into the grinding chamber 210. The second grinding blade 300 is fixedly sleeved on the drive shaft 420. The power motor 410 is used to drive the second grinding blade 300 to rotate around the axis of the drive shaft 420 through the drive shaft 420, so that the first grinding blade 130 cooperates with the second grinding blade 300 to grind the beans in the grinding gap 101 into powder.

[0060] As shown in Figure 1, a powder outlet channel 212 is provided at the bottom of the grinding chamber 210, which is used to discharge the powder inside the grinding chamber 210 to the outside. The coffee grinder 10 also includes a powder collection box 500, which is used to collect the powder discharged from the powder outlet channel 212. Further, a receiving groove 220 is provided on the side wall of the main unit 200. The receiving groove 220 is formed by an inward indentation from the side wall of the main unit 200. The powder collection box 500 is detachably installed in the receiving groove 220 to facilitate the removal and use of the powder collection box 500, and at the same time, it can reduce the space occupied by the powder collection box 500, making the structure of the coffee grinder 10 more compact. A powder inlet 510 is provided on the top of the powder collection box 500. The powder inlet 510 is correspondingly provided with the powder outlet channel 212, and the powder discharged from the powder outlet channel 212 can fall into the powder collection box 500 through the powder inlet 510.

[0061] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A coffee grinding mechanism, characterized in that, include: A grinding cup, wherein a positioning hole is provided at the bottom of the grinding cup; Connection components; The first grinding tool is fitted into the positioning hole and is connected to the grinding cup via the connecting component. as well as A first anti-rotation structure is disposed between the first grinding tool and the inner wall of the positioning hole. The first anti-rotation structure is used to restrict the movement of the first grinding tool during the working process. The grinding cup includes a cup body and a cup base. The cup base is disposed at the bottom of the cup body and is provided with the positioning hole. The first grinding blade is disposed at the bottom of the cup body through the connecting component. The connecting assembly includes a first connecting frame, a second connecting frame, and a third connecting frame. The cup body is connected to the first connecting frame, the first grinding blade is connected to the second connecting frame, and the third connecting frame is rotatably connected to the cup seat. The third connecting frame is threadedly engaged with the second connecting frame so that the position of the first grinding blade connected to the second connecting frame in the axial direction of the first grinding blade can be adjusted by rotating the third connecting frame. The first connecting frame can hold the third connecting frame to restrict the movement of the third connecting frame in its own axial direction.

2. The grinding mechanism according to claim 1, characterized in that, The first anti-rotation structure is positioned close to the center of the first grinding tool.

3. The grinding mechanism according to claim 1, characterized in that, It also includes a second anti-rotation structure, which is located outside the positioning hole and disposed between the first grinding tool and the connecting assembly. The second anti-rotation structure is used to limit the movement of the first grinding tool during operation.

4. The grinding mechanism according to claim 1, characterized in that, The first anti-rotation structure includes an anti-rotation plane and / or an anti-rotation curved surface.

5. The grinding mechanism according to claim 1, characterized in that, The number of the first anti-rotation structure is at least two.

6. The grinding mechanism according to claim 5, characterized in that, At least two of the first anti-rotation structures are distributed along the circumference of the first grinding tool.

7. The grinding mechanism according to claim 1, characterized in that, The first anti-rotation structure package The device includes an anti-rotation rib and an anti-rotation groove. The anti-rotation rib is provided on one of the inner walls of the first grinding tool and the positioning hole, and the anti-rotation groove is provided on the other of the inner walls of the first grinding tool and the positioning hole. The anti-rotation rib and the anti-rotation groove abut against each other.

8. The grinding mechanism according to claim 1, characterized in that, The height A of the first anti-rotation structure in the axial direction of the first grinding tool is ≥2mm.

9. The grinding mechanism according to claim 1, characterized in that, The distance B between the first anti-rotation structure and the bottom end face of the first grinding tool along the axial direction of the first grinding tool is ≦3mm.

10. The grinding mechanism according to claim 1, characterized in that, The first grinding tool is either snap-fitted to the second connecting frame or integrally formed; And / or, the cup body and the first connecting bracket are fixedly connected by threaded fasteners or integrally formed.

11. The grinding mechanism according to claim 1, characterized in that, It also includes a rotating housing, which is fitted onto the outside of the cup holder and connected to the third connecting bracket.

12. A coffee grinder, characterized in that, Includes the grinding mechanism as described in any one of claims 1 to 11.

13. The coffee grinder according to claim 12, characterized in that, The coffee grinder is a coffee machine with a coffee grinding function.

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