Bean grinder

Abstract

The utility model relates to the technical field of household appliances, and discloses a bean grinder which comprises a grinder body, an outer cutter head, an inner cutter head and a first shielding part, the outer cutter head is mounted on the machine body and provided with a feeding port, a grinding cavity and a discharging port, and the feeding port, the grinding cavity and the discharging port are sequentially arranged from top to bottom and communicate with one another; the first shielding part is connected to the lower end of the outer cutter head, and the first shielding part is arranged around the discharge port; in the direction of the central axis of the machine body, the outer cutter head can move relative to the machine body to drive the first shielding part to move relative to the inner cutter head; the inner cutterhead is rotationally connected to the machine body, the central axis of the inner cutterhead is parallel to the motion trajectory of the outer cutterhead, and the inner cutterhead is located in the grinding cavity; in the direction from top to bottom, the sectional area of the inner cutter head is gradually increased, and the sectional area of the grinding cavity is also gradually increased. The technical problem that bean flour discharged from a grinding cavity may splash is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a coffee bean grinder. Background Art

[0002] Currently, bean grinders can be used to grind beans, such as coffee beans, so that users can make their own coffee for drinking in daily life.

[0003] In the related art, the bean grinder includes a body, an inner blade disc and an outer blade disc. The inner blade disc is rotatably connected to the body and can be manually driven by the user through a joystick or by a motor. The outer blade disc is provided with a grinding chamber, and the inner blade disc is placed in the grinding chamber. Blades are provided on the outer side of the inner blade disc and the inner wall of the grinding chamber. When the inner blade disc rotates relative to the body, the blades on the inner blade disc and the blades in the grinding chamber can grind the beans in the grinding chamber, and the ground bean powder is discharged from the lower end of the grinding chamber.

[0004] However, when the rotation speed of the inner cutter disc relative to the machine body is too fast, the bean powder attached to the side surface of the inner cutter disc has a large linear velocity when it leaves the inner cutter disc, causing the bean powder discharged from the grinding chamber to splash. Utility Model Content

[0005] The embodiment of the utility model aims to provide a bean grinder to solve the technical problem in the prior art that bean powder discharged from the grinding chamber may splash.

[0006] The present invention solves the technical problem by adopting the following technical solutions:

[0007] A coffee bean grinder is provided, comprising:

[0008] body;

[0009] An external cutter disc, the external cutter disc being mounted on the machine body, and the external cutter disc being provided with a feed port, a grinding chamber, and a discharge port, the feed port, the grinding chamber, and the discharge port being arranged in sequence from top to bottom and being interconnected;

[0010] A first shielding member connected to the lower end of the outer cutter disc, the first shielding member being arranged around the discharge port;

[0011] an inner cutter disc, the inner cutter disc being rotatably connected to the body, the central axis of the inner cutter disc being parallel to the motion trajectory of the outer cutter disc, the inner cutter disc being located within the grinding chamber; the cross-sectional area of ​​the inner cutter disc gradually increasing from top to bottom, and the cross-sectional area of ​​the grinding chamber also gradually increasing;

[0012] In the direction of the central axis of the fuselage, the outer cutter disc can move relative to the fuselage, driving the first shielding component to move relative to the inner cutter disc.

[0013] In some embodiments, the coffee grinder further comprises a second shielding member, which is mounted on the lower end of the body, and is disposed around the periphery of the first shielding member, wherein the bottom of the second shielding member is further away from the lower end of the body than the bottom of the first shielding member.

[0014] In some embodiments, the second shielding component includes an inner inclined wall structure, which faces the rotation axis of the inner cutter disc; from top to bottom, the distance between the inner inclined wall structure and the rotation axis of the inner cutter disc gradually increases.

[0015] In some embodiments, the first shielding component includes an outer inclined wall structure, which faces away from the rotation axis of the inner cutter disc; from top to bottom, the distance between the outer inclined wall structure and the rotation axis of the inner cutter disc gradually decreases.

[0016] In some embodiments, the grinder further comprises an adjustment knob rotatably connected to an outer circumferential side surface of the body, wherein the rotation axis of the adjustment knob is colinear with the rotation axis of the inner blade disc; the adjustment knob is sleeved on the outer blade disc, and the inner surface of the adjustment knob is threadedly connected to the outer surface of the outer blade disc; the body comprises a guide member, the outer blade disc defines a guide groove, and the guide member is inserted into the corresponding guide groove;

[0017] During the rotation of the adjusting knob, the adjusting knob drives the outer cutter disc to move relative to the machine body along the direction of the rotation axis of the adjusting knob, and the guide member moves in the guide groove.

[0018] In some embodiments, the outer cutter disc includes at least two side protrusion blocks, and the side protrusion blocks protrude from the outer surface of the outer cutter disc; the inner surface of the adjusting knob is threadedly connected to the side of the side protrusion block that is away from the central axis of the outer cutter disc; all the side protrusion blocks are circumferentially distributed on the outer cutter disc, and the guide groove is formed between two adjacent side protrusion blocks.

[0019] In some embodiments, the outer cutter disc further includes a main body and a connecting portion, the main body is provided with the feed port, the grinding chamber and the discharge port, the side protrusion block protrudes from the outer surface of the connecting portion, and the connecting portion is detachably connected to the outer surface of the main body.

[0020] In some embodiments, the coffee bean grinder further comprises a drive assembly, the body comprising a mounting frame and a rotating shaft, the body defining a mounting cavity, the mounting cavity being in communication with the grinding chamber via the feed port, the mounting frame being mounted within the mounting cavity, and the rotating shaft being rotatably connected to the mounting frame; from top to bottom, the drive assembly, the mounting frame, and the inner cutter disc are sequentially arranged; the upper end of the rotating shaft is connected to the drive assembly, and the lower end of the rotating shaft is fixed to the inner cutter disc, and the drive assembly is capable of driving the inner cutter disc to rotate relative to the body via the rotating shaft.

[0021] In some embodiments, the coffee bean grinder further includes a support frame, which includes a frame body and a support platform, the support platform is connected to the upper end of the frame body, the drive assembly is fixed to the upper end of the support platform, the body is fixed to the lower end of the support platform, and the frame body is located on one side of the body.

[0022] In some embodiments, the support platform is provided with a feed bin, which is connected to the grinding chamber through the installation cavity and the feed port in sequence, and the opening of the feed bin is located on one side of the driving assembly.

[0023] Compared with the prior art, when the outer blade disc moves relative to the machine body, the distance between the cavity wall of the grinding chamber and the outer surface of the inner blade disc will change, and thus the size of the bean particles formed by the bean grinder will be different.

[0024] When the outer blade disc moves upward, the outer blade disc moves away from the inner blade disc, and the distance between the cavity wall of the grinding chamber and the outer surface of the inner blade disc becomes larger, so that the bean particles formed by the grinder are larger. At the same time, the outer blade disc drives the first shielding component to move upward, and the lower end of the first shielding component is closer to the inner blade disc; when the distance between the cavity wall of the grinding chamber and the outer surface of the inner blade disc is larger, and the bean particles are also larger, the amplitude of the side splashing of the bean particles is smaller, and the first shielding component can effectively prevent the bean particles from splashing.

[0025] When the outer blade disc moves downward, the distance between the cavity wall of the grinding chamber and the outer surface of the inner blade disc becomes smaller, so that the bean particles formed by the grinder are smaller. At the same time, the outer blade disc drives the first shielding component to move downward, and the lower end of the first shielding component is farther away from the inner blade disc; when the distance between the cavity wall of the grinding chamber and the outer surface of the inner blade disc is smaller, and the bean particles are also smaller, the amplitude of the side splashing of the bean particles is greater, and the effective height of the first shielding component is also increased, so that the first shielding component can effectively prevent the bean particles from splashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] One or several embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0027] Figure 1 This is a perspective view of a coffee bean grinder according to one embodiment of the present invention;

[0028] Figure 2 This is a perspective view of another embodiment of the coffee bean grinder of the present invention with the bottom plate disassembled;

[0029] Figure 3 yes Figure 1 A magnified view of the lower end of the medium grinder;

[0030] Figure 4 yes Figure 2 A three-dimensional view of the base plate of the medium grinder;

[0031] Figure 5 yes Figure 1 Cross-sectional view of the outer blade disc of the middle grinder;

[0032] Figure 6 yes Figure 1 A three-dimensional view of the middle grinder with its outer blade and guide removed;

[0033] Figure 7 It is a cross-sectional view of a coffee bean grinder in another embodiment of the present invention.

[0034] Reference numerals:

[0035] 100, coffee bean grinder; 10, machine body; 12, guide member; 14, mounting frame; 16, rotating shaft; 18, bottom plate; 102, mounting cavity; 20, outer blade disc; 22, main body; 2202, feed port; 2204, grinding chamber; 2206, discharge port; 24, connecting portion; 242, side protrusion; 2402, guide groove; 30, inner blade disc; 40, first shielding member; 42, outer inclined wall structure; 50, second shielding member; 52, inner inclined wall structure; 502, clearance groove; 60, adjustment knob; 70, drive assembly; 80, support frame; 82, frame; 84, support platform; 8402, feed bin; 86, bin door. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0038] The following describes in detail a coffee bean grinder 100 provided in an embodiment of the present application through a specific embodiment in conjunction with all the drawings in the specification.

[0039] Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In one embodiment of the present invention, a coffee bean grinder 100 is disclosed, comprising a body 10, an outer blade disc 20, an inner blade disc 30, and a first shielding member 40; the outer blade disc 20 is mounted on the body 10, and is provided with a feed port 2202, a grinding chamber 2204, and a discharge port 2206. The feed port 2202, the grinding chamber 2204, and the discharge port 2206 are arranged in sequence from top to bottom and are interconnected.

[0040] The first shielding component 40 is connected to the lower end of the outer cutter disc 20, and the first shielding component 40 is arranged around the discharge port 2206; in the direction of the central axis O of the fuselage 10, the outer cutter disc 20 can move relative to the fuselage 10, driving the first shielding component 40 to move relative to the inner cutter disc 30.

[0041] The inner cutter disc 30 is rotatably connected to the fuselage 10, and the central axis of the inner cutter disc 30 is parallel to the motion trajectory of the outer cutter disc 20. The inner cutter disc 30 is located in the grinding chamber 2204. From top to bottom, the cross-sectional area of ​​the inner cutter disc 30 gradually increases, and the cross-sectional area of ​​the grinding chamber 2204 also gradually increases.

[0042] With the above structure, when the outer blade disc 20 moves relative to the body 10, the distance between the cavity wall of the grinding chamber 2204 and the outer surface of the inner blade disc 30 will change, thereby different sizes of bean particles ground by the bean grinder 100.

[0043] When the outer blade disc 20 moves upward, the outer blade disc 20 moves away from the inner blade disc 30, and the distance between the cavity wall of the grinding chamber 2204 and the outer surface of the inner blade disc 30 becomes larger, so that the bean particles formed by the grinder 100 are larger. At the same time, the outer blade disc 20 drives the first shielding component 40 to move upward, and the lower end of the first shielding component 40 is closer to the inner blade disc 30; when the distance between the cavity wall of the grinding chamber 2204 and the outer surface of the inner blade disc 30 is larger, and the bean particles are also larger, the amplitude of the side splashing of the bean particles is smaller, and the first shielding component 40 can effectively prevent the bean particles from splashing.

[0044] When the outer blade disc 20 moves downward, the distance between the cavity wall of the grinding chamber 2204 and the outer surface of the inner blade disc 30 becomes smaller, so that the bean particles formed by the grinder 100 are smaller. At the same time, the outer blade disc 20 drives the first shielding component 40 to move downward, and the lower end of the first shielding component 40 is farther away from the inner blade disc 30; the distance between the cavity wall of the grinding chamber 2204 and the outer surface of the inner blade disc 30 is smaller, and when the bean particles are smaller, the amplitude of the side splashing of the bean particles is larger, and the effective height of the first shielding component 40 is also increased, so that the first shielding component 40 can effectively prevent the bean particles from splashing.

[0045] Specifically, in this embodiment, the body 10 has a cylindrical structure, and the grinder 100 further includes a knob structure that is threadedly connected to the outer blade disc 20. The user rotates the knob structure to move the outer blade disc 20 relative to the body 10. The grinding chamber 2204 has a frustum-shaped structure, with an inclined blade structure provided on its inner surface. The inner blade disc 30 has a frustum-shaped structure adapted to fit within the grinding chamber 2204, and an inclined blade structure is also provided on its outer surface.

[0046] The inner cutter disc 30 is rotatably connected to the fuselage 10 via a rotating shaft. The inner cutter disc 30 is located at the lower end of the fuselage 10, and the rotating shaft is arranged inside the fuselage 10. The lower end of the rotating shaft is connected to the inner cutter disc 30, and the upper end of the rotating shaft is connected to the drive motor. The drive motor can drive the inner cutter disc 30 to rotate via the rotating shaft.

[0047] The first shielding component 40 is annular in structure, the central axis of the first shielding component 40 is collinear with the rotation axis of the inner cutter disc 30, the inner side wall of the first shielding component 40 is perpendicular to the horizontal plane, and the outer side wall of the first shielding component 40 is inclined relative to the horizontal plane.

[0048] In other embodiments, the body 10 may also have other structures, such as a rectangular parallelepiped; the rotating shaft of the inner cutter disc 30 may also be driven by other components, such as a manual rocker; the first shielding component 40 may also be other shapes, such as a rectangular frame structure arranged around the discharge port 2206; the outer cutter disc 20 may also be moved relative to the body 10 in other ways, such as by a motor.

[0049] In some embodiments, the coffee bean grinder 100 further includes a second shielding member 50 , which is mounted on the lower end of the body 10 . The second shielding member 50 is disposed around the periphery of the first shielding member 40 , and the bottom of the second shielding member 50 is further away from the lower end of the body 10 than the bottom of the first shielding member 40 .

[0050] Through the above structure, the bottom of the second shielding component 50 is farther away from the lower end of the body 10 than the bottom of the first shielding component 40; when the bean grinder 100 is in use, the height of the bottom of the second shielding component 50 is lower than the height of the bottom of the first shielding component 40, so that the second shielding component 50 can have a secondary shielding effect on the bean particles splashed out from the side of the discharge port 2206, further reducing the possibility of bean particles splashing out of the grinder 100 in the side direction.

[0051] Specifically, in this embodiment, the fuselage 10 includes a base plate 18, which is fixed to the lower end of the fuselage 10 by screws. The second shielding component 50 is connected to the lower surface of the base plate 18. The second shielding component 50 is overall in a shape similar to a circular ring. The central axis of the second shielding component 50 is collinear with the central axis of the first shielding component 40. A clearance groove 502 is provided on the second shielding component 50, and the clearance groove 502 is used for screw installation.

[0052] In other embodiments, the second shielding component 50 may also have other structures, such as a continuous ring shape, and the screws for fixing the bottom plate 18 are located on the outside of the second shielding component 50 .

[0053] In some embodiments, the second shielding component 50 includes an inner inclined wall structure 52, which faces the rotation axis of the inner cutter disc 30; from top to bottom, the distance between the inner inclined wall structure 52 and the rotation axis of the inner cutter disc 30 gradually increases.

[0054] Through the above structure, when the bean particles splashed out from the discharge port 2206 contact the inner inclined wall structure 52 of the second shielding component 50, the bean particles will rebound; from top to bottom, the inner inclined wall structure 52 is inclined in the direction away from the central axis of the second shielding component 50, so that the rebound direction of the bean particles is downward, thereby preventing the bean particles from being blocked by the second shielding component 50 and rebounding toward the discharge port 2206.

[0055] Specifically, the inner inclined wall structure 52 forms a truncated cone-shaped side surface, and a rounded corner or a chamfered corner may be provided between the inner inclined wall structure 52 and the bottom end of the second shielding component 50 .

[0056] In some embodiments, the first shielding component 40 includes an outer inclined wall structure 42, which faces away from the rotation axis of the inner cutter disc 30; from top to bottom, the distance between the outer inclined wall structure 42 and the rotation axis of the inner cutter disc 30 gradually decreases.

[0057] With the above structure, during the assembly process of the outer cutter disc 20 or the movement of the outer cutter disc 20 relative to the body 10, the outer inclined wall structure 42 makes it difficult for the first shielding component 40 to contact or collide with other parts of the coffee grinder 100.

[0058] Specifically, the outer inclined wall structure 42 forms a truncated cone-shaped side surface, and a rounded corner or chamfer may be provided between the outer inclined wall structure 42 and the bottom end of the first shielding component 40, and a rounded corner or chamfer may also be provided between the top end of the outer inclined wall structure 42 and the bottom surface of the outer cutter disc 20.

[0059] Please refer to Figure 5 and Figure 6 In some embodiments, the coffee bean grinder 100 further includes an adjusting knob 60, which is rotatably connected to the outer circumferential side of the body 10, and the rotation axis of the adjusting knob 60 is collinear with the rotation axis of the inner blade disc 30; the adjusting knob 60 is sleeved on the outer blade disc 20, and the inner surface of the adjusting knob 60 is threadedly connected to the outer surface of the outer blade disc 20; the body 10 includes a guide member 12, and the outer blade disc 20 is provided with a guide groove 2402, and the guide member 12 is embedded in the corresponding guide groove 2402.

[0060] During the rotation of the adjusting knob 60 , the adjusting knob 60 drives the outer cutter head 20 to move relative to the body 10 along the direction of the rotation axis of the adjusting knob 60 , and the guide member 12 moves in the guide groove 2402 .

[0061] Through the above structure, the user turns the adjustment knob 60, and the adjustment knob 60 rotates relative to the outer blade disc 20. At the same time, the guide member 12 abuts against the groove wall of the guide groove 2402 and guides and limits the outer blade disc 20. The outer blade disc 20 moves upward or downward relative to the body 10 to adjust the distance between the inner blade disc 30 and the outer blade disc 20, and then adjust the size of the particles formed after the beans are ground.

[0062] Specifically, the adjusting knob 60 can be rotatably connected to the body 10 through a bearing. The outer surface of the adjusting knob 60 is protruded from the outside of the body 10, and the adjusting knob 60 is engraved with a scale. The scale on the adjusting knob 60 is used for customers to observe and understand the size of the ground bean particles.

[0063] In some embodiments, the outer cutter disc 20 includes at least two side protrusion blocks 242, and the side protrusion blocks 242 protrude from the outer surface of the outer cutter disc 20; the inner surface of the adjusting knob 60 is threadedly connected to the side of the side protrusion block 242 that is away from the central axis of the outer cutter disc 20; all the side protrusion blocks 242 are distributed circumferentially on the outer cutter disc 20, and the guide groove 2402 is formed between two adjacent side protrusion blocks 242.

[0064] Through the above structure, the guide member 12 can simultaneously abut against the side protrusion block 242 and the outer surface of the outer blade disc 20, and the number of the side protrusion blocks 242 is equal to the number of the guide grooves 2402, so that there are at least two guide members 12; so that when the outer blade disc 20 moves in the vertical direction relative to the body 10, the outer blade disc 20 can be more stable, thereby improving the grinding accuracy of the beans.

[0065] Specifically, in this embodiment, the guide member 12 can be an arc-shaped block structure, and the side protrusion block 242 is also an arc-shaped block structure. The height of the side protrusion block 242 is less than the height of the guide member 12. The number of the side protrusion blocks 242 is three, and the spacing between two adjacent side protrusion blocks 242 is equal.

[0066] In other embodiments, the number of the side protrusion blocks 242 may be other numbers, such as two or four.

[0067] In some embodiments, the outer cutter disc 20 also includes a main body 22 and a connecting portion 24. The main body 22 is provided with a feed port 2202, a grinding chamber 2204 and a discharge port 2206. The side protrusion block 242 protrudes from the outer surface of the connecting portion 24, and the connecting portion 24 is detachably connected to the outer surface of the main body 22.

[0068] Through the above structure, the connecting portion 24 can be detachably connected to the outer surface of the body 22, and the outer cutter disc 20 can be replaced with a body 22 of different models, so that the size of the blade connected to the cavity wall of the grinding cavity 2204 can be changed according to demand.

[0069] Specifically, in this embodiment, the connecting portion 24 and the body 22 both have an annular structure. The connecting portion 24 is sleeved on the outer surface of the body 22 and can be detachably connected to the body 22 by a snap-fit ​​connection. The connecting portion 24 also includes a frame structure, which is located above the body 22. The rotation axis of the inner cutter head 30 is installed through the frame structure.

[0070] In other embodiments, the connecting portion 24 and the body 22 may be detachably connected in other ways, such as by screws.

[0071] Please refer to Figure 7In some embodiments, the coffee bean grinder 100 further includes a drive assembly 70, the body 10 includes a mounting frame 14 and a rotating shaft 16, the body 10 defines a mounting cavity 102, the mounting cavity 102 being connected to the grinding chamber 2204 via a feed port 2202, the mounting frame 14 being mounted within the mounting cavity 102, and the rotating shaft 16 being rotatably connected to the mounting frame 14; from top to bottom, the drive assembly 70, the mounting frame 14, and the inner cutter disc 30 are arranged in sequence; the upper end of the rotating shaft 16 is connected to the drive assembly 70, and the lower end of the rotating shaft 16 is fixed to the inner cutter disc 30, and the drive assembly 70 can drive the inner cutter disc 30 to rotate relative to the body 10 via the rotating shaft 16.

[0072] Through the above structure, the driving assembly 70 drives the rotating shaft 16 to rotate through the upper end of the rotating shaft 16, and the rotating shaft 16 can drive the inner cutter disc 30 to rotate; the mounting frame 14 is located between the inner cutter disc 30 and the driving assembly 70, and the mounting frame 14 can support the rotating shaft 16 to make the rotating shaft 16 more stable during rotation.

[0073] Specifically, in this embodiment, the drive component 70 can be a motor, and the drive component 70 can be installed at the top of the fuselage 10. The upper end of the rotating shaft 16 can be provided with a hexagonal prism. The rotating shaft of the drive component 70 is provided with a blind hole corresponding to the shape of the rotating shaft 16 at one end facing the rotating shaft 16. The blind hole on the rotating shaft of the drive component 70 is sleeved on the hexagonal prism at the upper end of the rotating shaft 16, so that the drive component 70 is fixed relative to the rotating shaft 16, so that the drive component 70 can drive the rotating shaft 16 to rotate.

[0074] In other embodiments, the driving assembly 70 may also be other structures, such as a rocker, and the user may drive the rotating shaft 16 to rotate by shaking the rocker.

[0075] In some embodiments, the coffee bean grinder 100 further includes a support frame 80, which includes a frame body 82 and a support platform 84. The support platform 84 is connected to the upper end of the frame body 82, the drive assembly 70 is fixed to the upper end of the support platform 84, and the body 10 is fixed to the lower end of the support platform 84. The frame body 82 is located on one side of the body 10.

[0076] Through the above structure, the support frame 80 is used to support the drive assembly 70 and the body 10; the frame 82 is located on one side of the body 10, so that the shape of the entire coffee grinder 100 is more compact, and the coffee grinder 100 is more convenient to carry or transport.

[0077] Specifically, the support platform 84 is a hollow block structure, and the fuselage 10 can be snapped onto the support platform 84 or threadedly connected to the support platform 84; the support frame 80 is a structure similar to an "L" shape, and the fuselage 10 is located between the bottom of the support frame 80 and the support platform 84.

[0078] In some embodiments, the support platform 84 is provided with a feed bin 8402 , which is connected to the grinding chamber 2204 via the installation cavity 102 and the feed port 2202 in sequence. The opening of the feed bin 8402 is located on one side of the drive assembly 70 .

[0079] Through the above structure, the user only needs to open the opening of the feed bin 8402 to fill the beans into the feed port 2202. The beans can fall into the grinding chamber 2204 through the installation cavity 102 and the feed port 2202, and the inner blade disc 30 and the outer blade disc 20 can grind the beans in the grinding chamber 2204.

[0080] In addition, both the feed bin 8402 and the mounting cavity 102 can accommodate beans, so that more beans can be placed in the bean grinder 100.

[0081] Specifically, a sheet-shaped door 86 can be provided at the opening of the feed bin 8402. The door 86 can be slidably connected to the opening of the feed bin 8402. When beans need to be filled in, the user can slide the door 86 to open the opening of the feed bin 8402; when the bean grinder 100 starts working or is idle, the user can close the door 86.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail. Although the present invention is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coffee bean grinder, characterized in that: include: body; An external cutter disc, the external cutter disc being mounted on the machine body, and the external cutter disc being provided with a feed port, a grinding chamber, and a discharge port, the feed port, the grinding chamber, and the discharge port being arranged in sequence from top to bottom and being interconnected; A first shielding member, the first shielding member is connected to the lower end of the outer cutter disc, and the first shielding member is arranged around the discharge port; an inner cutter disc, the inner cutter disc being rotatably connected to the body, the central axis of the inner cutter disc being parallel to the motion trajectory of the outer cutter disc, the inner cutter disc being located within the grinding chamber; the cross-sectional area of ​​the inner cutter disc gradually increasing from top to bottom, and the cross-sectional area of ​​the grinding chamber also gradually increasing; In the direction of the central axis of the fuselage, the outer cutter disc can move relative to the fuselage, driving the first shielding component to move relative to the inner cutter disc.

2. The coffee bean grinder according to claim 1, characterized in that: It also includes a second shielding component, which is installed at the lower end of the fuselage and is arranged around the periphery of the first shielding component. The bottom of the second shielding component is farther away from the lower end of the fuselage than the bottom of the first shielding component.

3. The coffee bean grinder according to claim 2, characterized in that: The second shielding component includes an inner inclined wall structure, which faces the rotation axis of the inner cutter disc. From top to bottom, the distance between the inner inclined wall structure and the rotation axis of the inner cutter disc gradually increases.

4. The coffee bean grinder according to claim 1, wherein: The first shielding component includes an outer inclined wall structure, which is away from the rotation axis of the inner cutter disc; from top to bottom, the distance between the outer inclined wall structure and the rotation axis of the inner cutter disc gradually decreases.

5. The coffee bean grinder according to claim 1, characterized in that: The machine body further includes an adjusting knob, the adjusting knob being rotatably connected to the outer circumferential side surface of the machine body, the rotation axis of the adjusting knob being colinear with the rotation axis of the inner cutter disc; the adjusting knob being sleeved on the outer cutter disc, the inner surface of the adjusting knob being threadedly connected to the outer surface of the outer cutter disc; the machine body includes a guide member, the outer cutter disc is provided with a guide groove, and the guide member is embedded in the corresponding guide groove; During the rotation of the adjusting knob, the adjusting knob drives the outer cutter disc to move relative to the machine body along the direction of the rotation axis of the adjusting knob, and the guide member moves in the guide groove.

6. The coffee bean grinder according to claim 5, characterized in that: The outer cutter disc includes at least two side protrusion blocks, which protrude from the outer surface of the outer cutter disc; the inner surface of the adjusting knob is threadedly connected to the side of the side protrusion block that is away from the central axis of the outer cutter disc; all the side protrusion blocks are circumferentially distributed on the outer cutter disc, and the guide groove is formed between two adjacent side protrusion blocks.

7. The coffee bean grinder according to claim 6, characterized in that: The outer cutter disc also includes a body and a connecting portion. The body is provided with the feed port, the grinding chamber and the discharge port. The side protrusion blocks protrude from the outer surface of the connecting portion. The connecting portion is detachably connected to the outer surface of the body.

8. The coffee bean grinder according to claim 1, wherein: It also includes a driving assembly, the body includes a mounting frame and a rotating shaft, the body is provided with a mounting cavity, the mounting cavity is connected to the grinding cavity through the feed port, the mounting frame is installed in the mounting cavity, and the rotating shaft is rotatably connected to the mounting frame; from top to bottom, the driving assembly, the mounting frame and the inner cutter disc are arranged in sequence; the upper end of the rotating shaft is connected to the driving assembly, and the lower end of the rotating shaft is fixed to the inner cutter disc, and the driving assembly can drive the inner cutter disc to rotate relative to the body via the rotating shaft.

9. The coffee bean grinder according to claim 8, characterized in that: It also includes a support frame, which includes a frame body and a support platform. The support platform is connected to the upper end of the frame body, the drive assembly is fixed to the upper end of the support platform, the fuselage is fixed to the lower end of the support platform, and the frame body is located on one side of the fuselage.

10. The coffee bean grinder according to claim 9, characterized in that: The support platform is provided with a feed bin, which is connected to the grinding chamber through the installation cavity and the feed port in sequence. The opening of the feed bin is located on one side of the driving component.

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