A grinding mechanism and a bean grinder

Abstract

The application belongs to the technical field of bean grinders, and particularly relates to a grinding mechanism and a bean grinder. The grinding mechanism comprises a grinding assembly and an adjusting assembly. The outer cutter disc is arranged in the chamber, and the seat body is provided with a first threaded structure above the outer cutter disc. The adjusting assembly is provided with a second threaded structure matched with the first threaded structure. The inner cutter disc is rotatably installed on the adjusting assembly and extends into the outer cutter disc. A grinding gap is formed between the inner cutter disc and the outer cutter disc, and the distance between the blades in the radial direction of the inner cutter disc decreases from bottom to top. The adjusting assembly and the seat body are threadedly connected, so that when the adjusting assembly is rotated, the adjusting assembly can move up and down along the seat body, thereby driving the inner cutter disc to move up and down, so as to adjust the size of the grinding gap and realize stepless adjustment.

Description

Technical Field

[0001] This application belongs to the field of coffee grinder technology, specifically relating to a grinding mechanism and a coffee grinder. Background Technology

[0002] Traditional coffee bean grinders, while allowing users to adjust the grind size by changing the settings, often fall short of meeting the specific grind size needs of many consumers. They present a variety of high standards in order to pursue a more refined experience on various coffee bean brewing equipment.

[0003] Existing coffee grinders produce grinds of varying coarseness at different settings, making it difficult to precisely meet the needs of different consumers and significantly reducing the user experience. Utility Model Content

[0004] The purpose of this application is to at least solve one of the technical problems existing in the prior art, and to provide a grinding mechanism and a coffee grinder, which are connected by an adjusting component and a seat body by a thread, so that the adjusting component can move up and down along the seat body, thereby driving the inner blade disc to move up and down to adjust the size of the grinding gap and achieve stepless adjustment.

[0005] The technical solution adopted by this application to solve its technical problem is: In a first aspect, a grinding mechanism includes: A grinding assembly includes a base, an inner cutter disc, and an outer cutter disc. The base has a cavity, the outer cutter disc is disposed in the cavity, and the base has a first threaded structure above the outer cutter disc. The adjustment assembly is provided with a second thread structure that mates with the first thread structure. The inner cutter disc is rotatably mounted on the adjustment assembly and extends into the outer cutter disc. A grinding gap is formed between the inner cutter disc and the outer cutter disc. The blade distance in the radial direction of the inner cutter disc decreases sequentially from bottom to top. When the adjustment component is rotated, it drives the inner blade disc to move up and down to adjust the size of the grinding gap.

[0006] In conjunction with the first aspect, in some implementations of the first aspect, the adjusting assembly includes a first outer tube and a first inner tube disposed within the first outer tube, the seat includes a second outer tube and a second inner tube disposed within the second outer tube, the first outer tube is mounted on the top of the second outer tube, the first inner tube is provided with a second threaded structure, the second inner tube is provided with a first threaded structure, the first inner tube and the second inner tube are coaxially arranged and threadedly connected by the first threaded structure and the second threaded structure, and the inner cutter disc is rotatably mounted on the first inner tube.

[0007] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the inner cutter head is connected to a rotating shaft extending in the vertical direction, a first bearing is provided in the first inner tube, the end of the rotating shaft away from the inner cutter head passes through the second inner tube and is installed on the first bearing, and a snap-fit ​​member is provided above the first bearing in the first inner tube, the snap-fit ​​member being used to restrict the rotating shaft from moving axially relative to the first bearing.

[0008] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the second inner tube body is provided with a plurality of second bearings below the first inner tube body, and the rotating shaft passes through the second bearings and the first bearings in sequence from bottom to top.

[0009] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, an elastic telescopic component is sleeved on the outside of the rotating shaft, and the elastic telescopic component is located between the inner cutter disc and the second bearing adjacent to the inner cutter disc.

[0010] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the first outer tube and the second outer tube are embedded and connected, and a sealing ring is provided between the first outer tube and the second outer tube.

[0011] In conjunction with the first aspect and the above-described implementations, in some implementations of the first aspect, the sealing ring includes a first sealing ring and a second sealing ring. The bottom of the first outer tube is provided with an inner connector, and the top of the second outer tube is provided with an outer connector. The first outer tube extends into the outer connector through the inner connector to abut against the inner circumference of the second outer tube. The outer circumference of the inner connector is provided with a first annular groove, and the first sealing ring is installed in the first annular groove. The second sealing ring is sleeved on the top of the inner connector, and the inner side of the top of the outer connector is provided with a second annular groove that matches the second sealing ring.

[0012] In combination with the first aspect and the above-described implementation methods, in some implementation methods of the first aspect, a third sealing ring is provided between the first inner tube body and the second inner tube body.

[0013] Secondly, a coffee grinder includes: The grinding mechanism described in any implementation of the first aspect; A crank or drive component is connected to the top of the rotating shaft to drive the rotating shaft to rotate.

[0014] In conjunction with the second aspect, some implementations of the second aspect also include a powder receiving cup, which is detachably installed below the base body, and the inner cavity of the powder receiving cup is connected to the grinding gap.

[0015] One of the above technical solutions has at least one of the following advantages or beneficial effects: The grinding mechanism of this application, by setting an adjusting component and a seat body with a threaded connection, allows the adjusting component to move up and down along the seat body, thereby driving the inner blade disc to move up and down to adjust the size of the grinding gap and achieve stepless adjustment. When the adjusting component drives the inner blade disc to move upward, the grinding gap between the inner and outer blade discs gradually decreases; when the adjusting component drives the inner blade disc to move downward, the grinding gap between the inner and outer blade discs gradually increases. This grinding mechanism can achieve stepless adjustment of the grinding degree through threaded adjustment, thereby meeting the fine needs of different consumers for the coarseness of coffee bean grinding and improving the user experience. Attached Figure Description

[0016] The following description, in conjunction with the accompanying drawings, further illustrates this application: Figure 1 This is an external schematic diagram of a coffee grinder according to one embodiment of this application; Figure 2 yes Figure 1 The diagram shows a cross-sectional view of an embodiment with the crank assembly hidden. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0018] In this application, when directions (up, down, left, right, front, and back) are described, it is only for the purpose of describing the technical solution of this application, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on this application.

[0019] In this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this application, the terms "first" and "second" are used only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0020] In this application, unless otherwise explicitly defined, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to direct connection or indirect connection through an intermediate medium; they can refer to fixed connection, detachable connection, or integral molding; they can refer to mechanical connection, electrical connection, or connection capable of mutual communication; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this application based on the specific content of the technical solution.

[0021] See Figure 1 and Figure 2 This application provides a grinding mechanism, including a grinding assembly and an adjustment assembly. The grinding assembly includes a base 1, an inner cutter disc 2, and an outer cutter disc 3. The base 1 has a chamber 11, and the outer cutter disc 3 is disposed within the chamber 11. Multiple outer grinding blades are spaced apart on the inner circumference of the outer cutter disc 3. A first threaded structure is provided above the outer cutter disc 3 on the base 1.

[0022] The adjustment assembly is provided with a second thread structure that mates with the first thread structure. The adjustment assembly and the base 1 are threadedly connected through the second thread structure and the first thread structure, so that the adjustment assembly can move up and down along the base 1.

[0023] The inner blade 2 is rotatably mounted on the adjusting assembly and extends into the outer blade 3, forming a grinding gap 4 between the inner blade 2 and the outer blade 3. After coffee beans or other beans enter the chamber 11, the inner blade 2 and the outer blade 3 grind the coffee beans. The size of the grinding gap 4 determines the coarseness of the ground coffee beans. The smaller the grinding gap 4, the finer the coffee bean powder; the larger the grinding gap 4, the stronger the particle texture of the coffee bean powder.

[0024] The distance between the cutting edges in the radial direction of the inner cutter disc 2 decreases from bottom to top. Specifically, the inner cutter disc 2 has a conical structure that is smaller at the top and larger at the bottom. Multiple internal grinding cutters are spaced apart on the outer periphery of the inner cutter disc 2. From bottom to top, the distance between the cutting edges of the internal grinding cutters in the same radial direction of the inner cutter disc 2 gradually decreases.

[0025] When the adjusting component is rotated, it moves the inner blade disc 2 up and down to adjust the size of the grinding gap 4. When the adjusting component moves the inner blade disc 2 upwards, the bottom of the inner blade disc 2 gradually rises, and the gap between it and the outer blade disc 3 gradually decreases, meaning the grinding gap 4 becomes smaller. When the bottom of the inner blade disc 2 rises to be flush with the bottom of the outer blade disc 3, the grinding gap 4 reaches its minimum, i.e., it is closed, preventing coffee powder from passing through. When the adjusting component moves the inner blade disc 2 downwards, the bottom of the inner blade disc 2 gradually falls, and the gap between it and the outer blade disc 3 gradually increases, meaning the grinding gap 4 increases.

[0026] The grinding mechanism of this application features an adjusting component threadedly connected to a base 1. This allows the adjusting component to move up and down along the base 1, thereby moving the inner blade disc 2 up and down to adjust the grinding gap 4, achieving stepless adjustment. When the adjusting component moves the inner blade disc 2 upwards, the grinding gap 4 between the inner blade disc 2 and the outer blade disc 3 gradually decreases; when the adjusting component moves the inner blade disc 2 downwards, the grinding gap 4 between the inner blade disc 2 and the outer blade disc 3 gradually increases. This grinding mechanism can achieve stepless adjustment of the grinding degree through threaded adjustment, thus meeting the finer grinding needs of different consumers and improving the user experience.

[0027] Further, see Figure 2 The adjusting assembly includes a first outer tube 51 and a first inner tube 52 disposed within the first outer tube 51. The base 1 includes a second outer tube 12 and a second inner tube 13 disposed within the second outer tube 12. The first outer tube 51 is mounted on the top of the second outer tube 12. The first inner tube 52 has a second threaded structure, and the second inner tube 13 has a first threaded structure. The first inner tube 52 and the second inner tube 13 are coaxially arranged and threadedly connected by the first threaded structure and the second threaded structure. The inner cutter disc 2 is rotatably mounted on the first inner tube 52. This structure provides both the base 1 and the adjusting assembly with two different inner and outer tube structures, which are connected correspondingly to each other, making the connection between the base 1 and the adjusting assembly more stable.

[0028] See Figure 2 In some embodiments, the first outer tube 51 and the second outer tube 12 are embedded and connected, and a sealing ring is provided between the first outer tube 51 and the second outer tube 12 to enhance the stability of the connection between the seat 1 and the adjustment component and to prevent loosening between the two when the adjustment component is rotated.

[0029] Further, see Figure 2 The sealing rings include a first sealing ring 61 and a second sealing ring 62. The bottom of the first outer tube 51 is provided with an inner connector 511, and the top of the second outer tube 12 is provided with an outer connector 121. The first outer tube 51 extends into the outer connector 121 through the inner connector 511 to abut against the inner circumference of the second outer tube 12. The outer circumference of the inner connector 511 is provided with a first annular groove, and the first sealing ring 61 is installed in the first annular groove to enhance the tightness of the connection between the first outer tube 51 and the second outer tube 12, ensuring the stability of the adjustment process and preventing loosening.

[0030] The second sealing ring 62 is fitted onto the top of the inner connector 511, and the top inner side of the outer connector 121 is provided with a second annular groove 122 that is adapted to the second sealing ring 62. When the adjusting assembly is rotated and moved downward, the second sealing ring 62 enters the second annular groove 122, thereby enhancing the stability of the adjustment process.

[0031] It is understood that the number of first sealing rings 61 can be set to one or more depending on the actual situation. The first sealing ring 61 includes a silicone ring, and the second sealing ring 62 includes a silicone ring or a gasket, etc., without limitation.

[0032] Further, see Figure 2 A third sealing ring 63 is provided between the first inner tube 52 and the second inner tube 13 to enhance the tightness of the connection between the first inner tube 52 and the second inner tube 13, ensure the stability of the adjustment process, and prevent loosening.

[0033] See Figure 2 In some embodiments, the inner cutter head 2 is connected to a rotating shaft 7 extending vertically. A first bearing 81 is provided inside the first inner tube 52. The end of the rotating shaft 7 away from the inner cutter head 2 passes through the second inner tube 13 and is mounted on the first bearing 81. A retaining member 82 is provided above the first bearing 81 in the first inner tube 52. The retaining member 82 is used to restrict the axial movement of the rotating shaft 7 relative to the first bearing 81, thereby achieving axial positioning between the rotating shaft 7 and the second inner tube 13 and ensuring that the rotating shaft 7 can move up and down with the adjusting assembly. It is understood that the retaining member 82 includes a retaining spring, etc., which abuts against the top of the first bearing 81 to achieve axial positioning between the two.

[0034] Further, see Figure 2 The second inner tube 13 is provided with several second bearings 83 below the first inner tube 52. The rotating shaft 7 is sequentially inserted into the second bearings 83 and the first bearing 81 from bottom to top to ensure the concentricity and smoothness of rotation of the rotating shaft 7, making the installation of the rotating shaft 7 more reliable.

[0035] Further, see Figure 2 An elastic telescopic component 84 is sleeved on the outside of the rotating shaft 7. The elastic telescopic component 84 is located between the inner cutter disc 2 and the first bearing 81 adjacent to the inner cutter disc 2. During the up and down movement of the rotating shaft 7, the elastic telescopic component 84 can provide elastic support for the inner cutter disc 2, meeting the requirement that the distance between the first bearing 81 and the inner cutter disc 2 changes continuously.

[0036] See Figure 1 In some embodiments, this application also provides a coffee grinder, including a grinding mechanism, a crank assembly 91, or a drive assembly connected to the top of a rotating shaft 7 to drive the rotating shaft 7 to rotate. The crank assembly 91 is used to manually rotate the crank assembly 91, thereby driving the rotating shaft 7 to rotate and achieve the grinding action. The drive assembly includes a motor, which drives the rotating shaft 7 to rotate electrically, achieving rapid grinding.

[0037] Further, see Figure 1 and Figure 2The coffee grinder also includes a coffee hopper 92, which is detachably installed below the base 1. The inner cavity of the coffee hopper 92 is connected to the grinding gap 4 to receive the ground coffee bean powder falling from the grinding gap 4.

[0038] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this application, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A grinding mechanism, characterized in that, include: A grinding assembly includes a base, an inner cutter disc, and an outer cutter disc. The base has a cavity, the outer cutter disc is disposed in the cavity, and the base has a first threaded structure above the outer cutter disc. The adjustment assembly is provided with a second thread structure that mates with the first thread structure. The inner cutter disc is rotatably mounted on the adjustment assembly and extends into the outer cutter disc. A grinding gap is formed between the inner cutter disc and the outer cutter disc. The blade distance in the radial direction of the inner cutter disc decreases sequentially from bottom to top. When the adjustment component is rotated, it drives the inner blade disc to move up and down to adjust the size of the grinding gap.

2. The grinding mechanism according to claim 1, characterized in that, The adjustment assembly includes a first outer tube and a first inner tube disposed within the first outer tube. The seat includes a second outer tube and a second inner tube disposed within the second outer tube. The first outer tube is mounted on the top of the second outer tube. The first inner tube is provided with a second threaded structure, and the second inner tube is provided with a first threaded structure. The first inner tube and the second inner tube are coaxially arranged and threadedly connected by the first threaded structure and the second threaded structure. The inner cutter disc is rotatably mounted on the first inner tube.

3. The grinding mechanism according to claim 2, characterized in that, The inner cutter head is connected to a rotating shaft extending in the vertical direction. A first bearing is provided in the first inner tube. The end of the rotating shaft away from the inner cutter head passes through the second inner tube and is installed on the first bearing. A snap-fit ​​member is provided above the first bearing in the first inner tube. The snap-fit ​​member is used to restrict the rotating shaft from moving axially relative to the first bearing.

4. The grinding mechanism according to claim 3, characterized in that, The second inner tube body is provided with a plurality of second bearings below the first inner tube body, and the rotating shaft passes through the second bearings and the first bearings in sequence from bottom to top.

5. The grinding mechanism according to claim 4, characterized in that, An elastic telescopic component is fitted around the outside of the rotating shaft. The elastic telescopic component is located between the inner cutter disc and the second bearing adjacent to the inner cutter disc.

6. The grinding mechanism according to any one of claims 2 to 5, characterized in that, The first outer tube and the second outer tube are embedded and connected, and a sealing ring is provided between the first outer tube and the second outer tube.

7. The grinding mechanism according to claim 6, characterized in that, The sealing ring includes a first sealing ring and a second sealing ring. The bottom of the first outer tube is provided with an inner connector, and the top of the second outer tube is provided with an outer connector. The first outer tube extends into the outer connector through the inner connector to abut against the inner circumference of the second outer tube. The outer circumference of the inner connector is provided with a first annular groove, and the first sealing ring is installed in the first annular groove. The second sealing ring is sleeved on the top of the inner connector, and the inner side of the top of the outer connector is provided with a second annular groove that matches the second sealing ring.

8. The grinding mechanism according to claim 6, characterized in that, A third sealing ring is provided between the first inner tube and the second inner tube.

9. A coffee grinder, characterized in that, include: The grinding mechanism according to any one of claims 1 to 8; A crank or drive component is connected to the top of the rotating shaft to drive the rotating shaft to rotate.

10. The coffee grinder according to claim 9, characterized in that, It also includes a powder receiving cup, which is detachably installed below the base body, and the inner cavity of the powder receiving cup is connected to the grinding gap.

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