Bean grinding component and bean grinding coffee machine

Abstract

The utility model provides a bean grinding part and a bean grinding coffee machine, and relates to the technical field of household appliances, the bean grinding part comprises a shell assembly, a grinding assembly and an adjusting assembly, the grinding assembly and the adjusting assembly are arranged on the shell assembly, the shell assembly is provided with a grinding cavity, and the grinding assembly comprises an inner grinding unit and an outer grinding unit; the inner grinding unit comprises an inner grinding wheel arranged in the grinding cavity and a transmission part in transmission connection with the inner grinding wheel, and the transmission part is arranged at the bottom of the shell assembly. According to the coffee bean grinder, the grinding assembly and the adjusting assembly are arranged on the shell assembly, so that the whole bean grinding part can be detached from the coffee bean grinder, when the coffee bean grinder is blocked or cleaned, the whole bean grinding part can be detached from the coffee bean grinder, and the whole outer grinding unit can be detached again, so that a blocked powder channel is dredged or cleaned; the problem that a bean grinding chamber and a powder outlet channel are difficult to clean when a bean grinding component is fixed on a machine is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and more specifically, to a grinding component and a coffee grinder with a grinding function. Background Art

[0002] Coffee is a widely popular beverage. Besides the type and quality of coffee beans affecting the coffee quality, the quality of coffee powder also cannot be ignored. And the quality of coffee powder depends to a large extent on the choice of coffee grinding device.

[0003] Conventionally, for devices that grind coffee beans, although the fineness of coffee powder can be adjusted by changing gears, due to processing errors and assembly errors of components, when the same or different batches of grinding devices grind coffee beans at the same fineness level, the powder output and fineness of the ground coffee beans are different, and it is difficult to meet the consistency requirements.

[0004] Chinese invention patent with publication number CN107981728 B discloses a grinding device, including a grinding component and an adjustment component. The grinding component includes a grinding chamber, an outer grinding wheel, and an inner grinding wheel. The outer grinding wheel and the inner grinding wheel are located inside the grinding chamber. The adjustment component includes at least two-stage adjustment mechanisms, which include a first adjustment mechanism and a second adjustment mechanism. The first adjustment mechanism is connected to the grinding chamber through a track, and the second adjustment mechanism is connected to the outer grinding wheel through a track. And the first adjustment mechanism and the second adjustment mechanism are relatively fixed in the axial direction. The first adjustment mechanism and the second adjustment mechanism are used to adjust the height of the outer grinding wheel.

[0005] During daily use, the grinding device may need to grind different varieties of coffee beans. The fine particles of coffee powder are likely to clog the powder outlet channel, and the outlet channel is prone to residual expired powder. It is necessary to clean it before grinding to avoid mixing with the coffee bean powder remaining in the grinding chamber and affecting the taste of coffee. However, the inner grinding wheel of the above grinding device is fixedly installed inside the grinding chamber, and only the outer grinding wheel can be disassembled, and the inner grinding wheel and related components cannot be disassembled, making it difficult to clean the grinding chamber and the powder outlet channel thoroughly. Summary of the Utility Model

[0006] Based on this, in order to solve the problem that the inner grinding wheel of the above grinding device is fixedly installed inside the grinding chamber, only the outer grinding wheel can be disassembled, and it is difficult to clean the grinding chamber and the powder outlet channel thoroughly, the utility model provides a grinding component and a coffee grinder with a grinding function, and its specific technical solutions are as follows:

[0007] On the one hand, a coffee bean grinding component includes a housing assembly, a grinding assembly, and an adjusting assembly provided on the housing assembly. The housing assembly is provided with a grinding chamber. The grinding assembly includes an inner grinding unit and an outer grinding unit. The inner grinding unit includes an inner grinding wheel disposed in the grinding chamber and a transmission member drivingly connected to the inner grinding wheel. The transmission member is disposed at the bottom of the housing assembly. The outer grinding unit includes an outer grinding wheel disposed in the grinding chamber. The adjusting assembly includes a first threaded cylinder and a second threaded cylinder that are adapted to each other. The outer grinding unit is mounted on the second threaded cylinder. The first threaded cylinder can rotate relative to the housing assembly. The top of the first threaded cylinder protrudes from the housing assembly and is provided with an adjusting portion. A coffee bean grinding gap is formed between the outer grinding wheel and the inner grinding wheel.

[0008] For the above coffee bean grinding component, by installing the grinding assembly and the adjusting assembly on the housing assembly, the whole coffee bean grinding component can be disassembled from the coffee grinder. When the coffee grinder is blocked with powder or needs to be cleaned, the whole coffee bean grinding component can be removed from the machine, and the outer grinding unit can be completely removed again, so as to dredge or clean the blocked powder channel, solving the problem that it is difficult to clean the coffee bean grinding component fixed on the machine. At the same time, by rotating the first threaded cylinder, the position of the second threaded cylinder in the vertical direction is adjusted, and the outer grinding wheel is driven to adjust the size of the coffee bean grinding gap.

[0009] Further, the housing assembly includes a mounting base and a grinding housing disposed above the mounting base. The grinding chamber is disposed on the mounting base. A powder outlet channel communicating with the grinding chamber is provided at the bottom of the mounting base. A limiting convex block is provided on the outer side of the first threaded cylinder. A limiting chamber for accommodating the limiting convex block is formed between the grinding housing and the mounting base.

[0010] Further, the adjusting assembly includes a limiting unit for guiding the vertical movement of the second threaded cylinder. The limiting unit includes a guiding groove provided on the wall of the grinding chamber and a guiding flange provided on the second threaded cylinder.

[0011] Further, the inner grinding unit includes a powder scraping seat drivingly connected to the inner grinding wheel. The inner grinding wheel and the powder scraping seat are rotatably connected in the grinding chamber. By driving the powder scraping seat to rotate, the coffee powder on the bottom wall of the grinding chamber is shoveled into the powder outlet channel.

[0012] Further, the inner grinding unit includes a transmission shaft. The transmission shaft is provided with a threaded portion threadedly connected to the transmission member, a rotating portion rotatably connected to the mounting base, a flat portion hub-connected to the powder scraping seat, and a connecting head for limiting the inner grinding wheel to be close to the mounting base. The powder scraping seat is provided with a connecting convex block. A limiting groove adapted to the connecting convex block is provided at the bottom of the inner grinding wheel.

[0013] Furthermore, the outer grinding unit is mounted on the second threaded cylinder through a detachable structure, and the detachable structure includes a connection clamping position arranged on the inner cylindrical surface of the second threaded cylinder and a connection clamping groove arranged on the outer side of the inner grinding unit; the connection clamping groove is adapted to the connection clamping position.

[0014] Furthermore, the connection clamping position is an inverted L-shaped flange, and a positioning convex arc is provided on the inverted L-shaped flange; the connection clamping groove is a one-word clamping groove formed by an L-shaped convex block, and a positioning concave edge adapted to the positioning convex arc is provided on the L-shaped convex block.

[0015] Furthermore, a lifting handle is provided at the top of the outer grinding unit.

[0016] On the other hand, a coffee bean grinding machine includes a transmission component and a coffee bean grinding component, and the transmission component is arranged below the coffee bean grinding component and is in transmission connection with the transmission part of the inner grinding unit.

[0017] Furthermore, the adjusting assembly further includes an adjusting unit arranged above the grinding assembly, and the adjusting unit includes an adjusting knob and a clamping bar strip in transmission connection with the adjusting knob; the adjusting part arranged at the top of the first threaded cylinder is a clamping bar groove adapted to the clamping bar strip. Description of the Drawings

[0018] The present utility model can be further understood from the following description in conjunction with the drawings. The components in the drawings are not necessarily drawn to scale, but the emphasis is placed on showing the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0019] Figure 1 is a structural cross-section of the coffee bean grinding component according to an embodiment of the present utility model Figure 1 ;

[0020] Figure 2 is a structural cross-section of the coffee bean grinding component according to an embodiment of the present utility model Figure 2 ;

[0021] Figure 3 is a structural schematic diagram of the coffee bean grinding component according to an embodiment of the present utility model;

[0022] Figure 4 is an exploded view of the coffee bean grinding component according to an embodiment of the present utility model Figure 1 ;

[0023] Figure 5 is an exploded view of the coffee bean grinding component according to an embodiment of the present utility model Figure 2 ;

[0024] Figure 6 is a structural cross-sectional view of the coffee bean grinding machine according to an embodiment of the present utility model.

[0025] Description of the reference numerals:

[0026] 1. Housing assembly; 2. Grinding assembly; 3. Adjusting assembly; 4. Detachable structure; 5. Transmission component; 6. Coffee bean grinding component;

[0027] 101. Grinding chamber; 102. Powder outlet channel;

[0028] 11. Mounting base; 12. Grinding housing;

[0029] 21. Inner grinding unit; 22. Outer grinding unit;

[0030] 211. Inner grinding wheel; 212. Transmission part; 213. Powder scraping seat; 214. Transmission shaft; 215. Connecting lug;

[0031] 221. Outer grinding wheel; 222. Handling part;

[0032] 31. First threaded cylinder; 32. Second threaded cylinder; 33. Limiting unit; 34. Adjusting unit;

[0033] 301. Adjusting part; 311. Limiting convex block;

[0034] 331. Guide groove; 332. Guide flange;

[0035] 341. Adjusting knob; 342. Clamping bar;

[0036] 41. Connecting clamping position; 42. Connecting clamping groove;

[0037] 411. Positioning convex arc; 421. Positioning concave edge. Detailed implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation manners described herein are only used to explain the present utility model and do not limit the protection scope of the present utility model.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are for the purpose of describing specific embodiments only and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0041] In this utility model, the so-called "first" and "second" do not represent specific quantities and sequences, but are only used for name distinction.

[0042] On the one hand, as Figure 1 and Figure 2 、 Figure 3 shown, a grinding bean component in an embodiment of this utility model includes a housing assembly 1, a grinding assembly 2 and an adjusting assembly 3 arranged on the housing assembly 1. The housing assembly 1 is provided with a grinding cavity 101. The grinding assembly 2 includes an inner grinding unit 21 and an outer grinding unit 22. The inner grinding unit 21 includes an inner grinding wheel 211 arranged in the grinding cavity 101 and a transmission member 212 drivingly connected to the inner grinding wheel 211. The transmission member 212 is arranged at the bottom of the housing assembly 1. The outer grinding unit 22 includes an outer grinding wheel 221 arranged in the grinding cavity 101. The adjusting assembly 3 includes a first threaded cylinder 31 and a second threaded cylinder 32 which are mutually adapted. The outer grinding unit 22 is arranged on the second threaded cylinder 32. The first threaded cylinder 31 can rotate relative to the housing assembly 1. The top of the first threaded cylinder 31 protrudes from the housing assembly 1 and is provided with an adjusting portion 301. A grinding bean gap is formed between the outer grinding wheel 221 and the inner grinding wheel 211.

[0043] For the above-mentioned grinding bean component, by arranging the grinding assembly 2 and the adjusting assembly 3 on the housing assembly 1, the whole grinding bean component can be detachably installed on the coffee grinder. When the coffee grinder is blocked with powder or needs to be cleaned, the whole grinding bean component can be removed from the machine, and the outer grinding unit 22 can be completely removed again, so as to dredge or clean the blocked powder channel, solving the problem that it is difficult to clean the grinding bean component fixed on the machine. At the same time, by rotating the first threaded cylinder 31, the position of the second threaded cylinder 32 in the vertical direction is adjusted, and the outer grinding wheel 221 is driven to adjust the size of the grinding bean gap.

[0044] In one embodiment, the housing assembly 1 includes a mounting seat 11 and a grinding housing 12 disposed above the mounting seat 11, the grinding chamber 101 is disposed on the mounting seat 11, and the bottom of the mounting seat 11 is provided with a powder outlet channel 102 communicating with the grinding chamber 101; a limiting protrusion 311 is disposed on the outer side of the first threaded barrel 31, and a limiting chamber for accommodating the limiting protrusion 311 is formed between the grinding housing 12 and the mounting seat 11. In this way, the limiting protrusion 311 is limited in the limiting chamber, and the first threaded barrel 31 is driven to rotate, thereby adjusting the position of the second threaded barrel 32 in the vertical direction, driving the outer grinding wheel 221 to adjust the size of the grinding bean gap.

[0045] like Figure 2 and Figure 4 As shown, in one embodiment, the adjustment assembly 3 includes a limiting unit 33 for guiding the second threaded barrel 32 to move in the vertical direction; the limiting unit 33 includes a guide groove 331 provided on the wall of the grinding chamber 101, and a guide flange 332 provided on the second threaded barrel 32. In this way, the guide flange 332 moves along the groove direction on the guide groove 331, so that the outer grinding wheel 221 of the outer grinding unit 22 can only move up and down relative to the inner grinding wheel 211.

[0046] like Figure 5 As shown, in one embodiment, the inner grinding unit 21 includes a powder scraper seat 213 that is transmission-connected to the inner grinding wheel 211, and the inner grinding wheel 211 and the powder scraper seat 213 are rotationally connected in the grinding chamber 101. Specifically, the powder outlet channel 102 is vertically arranged on the circumference of the rotation center of the inner grinding wheel 211, and the powder scraper seat 213 is provided with a plurality of powder scraper strips that are in contact with and connected to the bottom wall of the grinding chamber 101. In this way, by driving the transmission member 212, the powder scraper seat 213 is driven to rotate, so that the coffee powder on the bottom wall of the grinding chamber 101 is scraped and dropped into the powder outlet channel 102.

[0047] In one embodiment, the internal grinding unit 21 includes a transmission shaft 214, which is provided with a threaded portion threadedly connected to the transmission member 212, a rotating portion rotatably connected to the mounting seat 11, a planar portion connected to the hub of the scraper seat 213, and a connecting head that limits the inner grinding wheel 211 to be close to the mounting seat 11; the scraper seat 213 is provided with a connecting protrusion 215, and the bottom of the inner grinding wheel 211 is provided with a limiting groove adapted to the connecting protrusion 215.

[0048] In one embodiment, the outer grinding unit 22 is mounted on the second threaded cylinder 32 through a detachable structure 4. The detachable structure 4 includes a connection clamping position 41 provided on the inner cylindrical surface of the second threaded cylinder 32 and a connection clamping groove 42 provided on the outside of the inner grinding unit 21. The connection clamping groove 42 is adapted to the connection clamping position 41. In this way, by placing the outer grinding unit 22 into the second threaded cylinder 32 and then rotating the outer grinding unit 22 to make the connection clamping position 41 snap into the connection clamping groove 42, the relative fixation between the outer grinding unit 22 and the second threaded cylinder 32 is achieved.

[0049] In one embodiment, the connection clamping position 41 is an inverted L-shaped flange, and a positioning convex arc 411 is provided on the inverted L-shaped flange. The connection clamping groove 42 is a one-word clamping groove formed by an L-shaped convex block, and a positioning concave edge 421 adapted to the positioning convex arc 411 is provided on the L-shaped convex block. In this way, by snapping the positioning convex arc 411 into the positioning concave edge 421, the relative fixation between the connection clamping position 41 and the connection clamping groove 42 is achieved, and the connection clamping position 41 is prevented from moving within the connection clamping groove 42.

[0050] In a specific embodiment, the rotation direction of the inner grinding wheel 211 during the coffee bean grinding process is the same as the direction in which the inverted L-shaped flange is screwed into the one-word clamping groove. In this way, when the inner grinding wheel 211 grinds coffee beans, the outer grinding unit 22 is prevented from falling off the second threaded cylinder 32 due to the force.

[0051] In a specific embodiment, a sealing sleeve is provided between the first threaded cylinder 31 and the second threaded cylinder 32 to prevent coffee powder from falling into the adjustment threads of the first threaded cylinder 31 and the second threaded cylinder 32.

[0052] In a specific embodiment, the outer grinding unit 22 further includes an outer grinding frame, and the outer grinding wheel 221 is provided on the outer grinding frame. In this way, by disassembling and installing the outer grinding wheel 221, it is convenient to process the outer grinding wheel 221.

[0053] In one embodiment, a lifting member 222 is provided at the top of the outer grinding unit 22. In this way, using the lifting member 222 as a gripping point, the outer grinding unit 22 can be quickly lifted out of the grinding chamber 101.

[0054] On the one hand, as Figure 1 and Figure 6 shown, a coffee bean grinding machine in an embodiment of the present invention includes a transmission member 5 and a coffee bean grinding member 6. The transmission member 5 is provided below the coffee bean grinding member 6 and is in transmission connection with a transmission member 212 of the inner grinding unit 21. Specifically, the transmission member 212 is a linkage fork, and the output end of the transmission member 5 is adapted to the linkage fork.

[0055] In one of the embodiments, the adjusting assembly 3 further includes an adjusting unit 34 disposed above the grinding assembly 2. The adjusting unit 34 includes an adjusting knob 341 and a clamping bar 342 drivingly connected to the adjusting knob 341. The adjusting portion 301 disposed at the top of the first threaded cylinder 31 is a clamping bar groove adapted to the clamping bar 342. In this way, the clamping bar 342 is clamped into the clamping bar groove, and the clamping bar 342 is driven to rotate by rotating the adjusting knob 341, thereby rotating the first threaded cylinder 31, so as to adjust the position of the second threaded cylinder 32 in the vertical direction and drive the outer grinding wheel 221 to adjust the size of the grinding gap.

[0056] As Figure 3 shown, in one of the embodiments, an installation limiting edge is provided on the outer side of the housing assembly 1. By limiting the installation limiting edge on the installation housing of the coffee bean grinder, the position of the coffee bean grinding member 6 is fixed. Specifically, the installation limiting edge is a convex block spaced on the outer circumferential side of the housing assembly 1, similar to a positioning flat key structure.

[0057] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0058] The above embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A bean grinding component, characterized in that: It comprises a housing component (1), a grinding component (2) and an adjustment component (3) arranged on the housing component (1), the housing component (1) being provided with a grinding chamber (101), and the grinding component (2) comprising an inner grinding unit (21) and an outer grinding unit (22); The internal grinding unit (21) comprises an internal grinding wheel (211) arranged in the grinding chamber (101), and a transmission member (212) transmission-connected to the internal grinding wheel (211), wherein the transmission member (212) is arranged at the bottom of the housing assembly (1); The external grinding unit (22) comprises an external grinding wheel (221) arranged in the grinding chamber (101); The adjusting assembly (3) comprises a first threaded barrel (31) and a second threaded barrel (32) adapted to each other, the external grinding unit (22) is mounted on the second threaded barrel (32), the first threaded barrel (31) can rotate relative to the housing assembly (1), the top of the first threaded barrel (31) protrudes from the housing assembly (1) and is provided with an adjusting portion (301); A bean grinding gap is formed between the outer grinding wheel (221) and the inner grinding wheel (211).

2. A bean grinding component according to claim 1, characterized in that: The housing assembly (1) comprises a mounting seat (11) and a grinding housing (12) arranged above the mounting seat (11); the grinding chamber (101) is arranged on the mounting seat (11); and a powder outlet channel (102) communicating with the grinding chamber (101) is provided at the bottom of the mounting seat (11); A limiting protrusion (311) is provided on the outer side of the first threaded cylinder (31), and a limiting cavity for accommodating the limiting protrusion (311) is formed between the grinding shell (12) and the mounting seat (11).

3. A bean grinding component according to claim 2, characterized in that: The adjusting assembly (3) comprises a limiting unit (33) for guiding the second threaded cylinder (32) to move in a vertical direction; The limiting unit (33) comprises a guide groove (331) arranged on the wall of the grinding chamber (101), and a guide flange (332) arranged on the second threaded cylinder (32).

4. The bean grinding component according to claim 2, characterized in that: The inner grinding unit (21) comprises a powder scraping seat (213) drivingly connected to the inner grinding wheel (211), and the inner grinding wheel (211) and the powder scraping seat (213) are rotatably connected in the grinding chamber (101); By driving the powder scraper seat (213) to rotate, the coffee powder on the bottom wall of the grinding chamber (101) is scraped off and dropped into the powder outlet channel (102).

5. The bean grinding component according to claim 4, characterized in that: The internal grinding unit (21) comprises a transmission shaft (214), wherein the transmission shaft (214) is provided with a threaded portion threadedly connected to the transmission member (212), a rotating portion rotatably connected to the mounting seat (11), a flat portion connected to the hub of the powder scraping seat (213), and a connecting head that limits the inner grinding wheel (211) to be close to the mounting seat (11); The powder scraper seat (213) is provided with a connecting protrusion (215), and the bottom of the inner grinding wheel (211) is provided with a limiting groove adapted to the connecting protrusion (215).

6. The bean grinding component according to claim 1, characterized in that: The outer grinding unit (22) is mounted on the second threaded barrel (32) via a detachable structure (4), wherein the detachable structure (4) comprises a connection clamping position (41) arranged on the inner barrel surface of the second threaded barrel (32), and a connection clamping groove (42) arranged on the outer side of the inner grinding unit (21); The connection slot (42) is adapted to fit the connection position (41).

7. The bean grinding component according to claim 6, characterized in that: The connection clamping position (41) is an inverted L-shaped flange, and a positioning convex arc (411) is provided on the inverted L-shaped flange; The connecting slot (42) is a straight slot formed by an L-shaped protrusion, and the L-shaped protrusion is provided with a positioning concave edge (421) adapted to the positioning convex arc (411).

8. The bean grinding component according to claim 1, characterized in that: A lifting piece (222) is provided on the top of the outer grinding unit (22).

9. A coffee bean grinding machine, characterized in that: It comprises a transmission component (5) and a bean grinding component (6) according to any one of claims 1 to 8, wherein the transmission component (5) is arranged below the bean grinding component (6) and is transmission-connected to a transmission member (212) of the inner grinding unit (21).

10. The coffee bean grinding machine according to claim 9, characterized in that: The adjustment assembly (3) further comprises an adjustment unit (34) arranged above the grinding assembly (2), and the adjustment unit (34) comprises an adjustment knob (341) and a clamping rod (342) drivingly connected to the adjustment knob (341); The adjusting portion (301) arranged at the top of the first threaded barrel (31) is a clamping strip groove adapted to the clamping rod strip (342).

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