A quick-release coffee grinder with a radial magnetic coupling structure

Abstract

This utility model discloses a quick-release coffee grinder with a radial magnetic coupling structure, including a main base, a grinding assembly, and a locking ring. The main base houses a control board and a drive motor electrically connected to the control board. The top of the main base has a mounting groove to expose the output shaft of the drive motor. The output shaft has a first magnetic coupling. The grinding assembly is detachably mounted on the mounting groove. One end of the grinding assembly has a second magnetic coupling coaxially connected to its internal grinding disc, and the second magnetic coupling is spaced and fitted onto the first magnetic coupling. The locking ring is fixedly fitted onto the grinding assembly and detachably connected to the main base. The locking ring structure allows for switching between locked and unlocked states. In the unlocked state, the grinding assembly can be disassembled for efficient cleaning by the user. Furthermore, the first and second magnetic couplings serve as a transmission structure, further improving the convenience of disassembly and assembly and the user experience.

Description

Technical Field

[0001] This utility model relates to the field of coffee grinders, and more particularly to a quick-release coffee grinder with a radial magnetic coupling structure. Background Technology

[0002] With the ever-accelerating pace of life, people's demands for material goods are also increasing. Many consumers, seeking fresh, high-quality coffee, are placing higher demands on coffee grinders. A high-quality grinder requires a high-quality and efficient grinding blade assembly; therefore, a suitable grinding blade assembly is particularly essential for a coffee grinder. Specifically, different brewing methods exist for coffee, such as pour-over, French press, espresso machine, and moka pot. The grinder must be selected according to the type and roast level of the coffee beans to maximize their quality. Furthermore, different brewing methods require different grind sizes. The differences are significant. For example, for the same dark roast coffee beans, pour-over coffee requires a larger grind size, while espresso machines require a finer grind size. Furthermore, when different varieties of coffee beans are ground using the same grinder, coffee powder from the previous operation remains on the inner wall of the grinding chamber. Because the moving grinder disc is physically connected to the output shaft of the drive motor, firstly, the grinder disc assembly cannot be quickly disassembled for maintenance, nor can the grinder disc be separated to clean its inner wall. Ultimately, this results in flavor mixing from various coffee beans, causing them to influence each other and hindering subsequent coffee blending. Therefore, there is an urgent need for a coffee grinder that allows for quick disassembly and cleaning to solve the aforementioned technical problems. Utility Model Content

[0003] In view of the technical problems of existing coffee grinders, such as difficulty in disassembly and cleaning, and the strict installation of coupling structures, this utility model provides a solution.

[0004] To achieve the above objectives, this utility model provides a quick-release coffee grinder with a radial magnetic coupling structure, comprising: The main seat contains a control board and a drive motor electrically connected to the control board; the top of the main seat has a mounting slot to expose the output shaft of the drive motor; the output shaft is provided with a first magnetic coupling. A coffee grinding assembly is detachably installed on the mounting slot; one end of the coffee grinding assembly is provided with a second magnetic coupling coaxially connected to its internal grinding disc, and the second magnetic coupling is spaced and fitted onto the first magnetic coupling; A locking ring is fixedly sleeved on the grinding assembly and detachably connected to the main seat; When the locking ring is connected to the main seat, it prevents the grinding assembly from detaching from the main seat.

[0005] As an improvement of this application, the first magnetic coupling is further fitted with a water-proof sleeve, and the outer wall of the water-proof sleeve and the inner wall of the second magnetic coupling form a preset gap.

[0006] As an improvement in this application, the open end of the water-proof sleeve is fitted against the inner wall of the main seat to isolate the first magnetic coupling. As an improvement of this application, the inner wall of the mounting groove is further provided with an annular step; it also includes a retaining ring, which is installed at the opening of the mounting groove; the retaining ring and the annular step form a locking space; the inner ring of the retaining ring is provided with a first notch, and the outer side of the retaining ring is provided with a first flange that can enter the locking space through the first notch.

[0007] As an improvement of this application, the outer wall of the locking ring is further provided with an abutment ring, which, together with the first flange, clamps the retaining ring when rotated to a preset position.

[0008] As an improvement of this application, the retaining ring and the abutment ring facing each other are respectively provided with positioning protrusions and positioning recesses.

[0009] As an improvement of this application, the shell of the grinding assembly is further provided with a second flange, and the annular step is provided with a second notch for the second flange to be inserted.

[0010] As an improvement to this application, the first notch corresponds to the position of the second notch to expose the second notch.

[0011] As an improvement of this application, the interior of the grinding assembly is provided with a moving grinding disc and a fixed grinding disc forming a grinding space, and the moving grinding disc is fixedly connected to the second magnetic coupling; the outer wall of the grinding assembly is provided with a powder outlet channel communicating with the grinding space.

[0012] As an improvement of this application, the end of the grinding assembly away from the main seat is also provided with a bean storage bin, which is connected to the grinding space through a bean drop channel.

[0013] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model provides a quick-release coffee grinder with a radial magnetic coupling structure, including a main seat, a grinding assembly, and a locking ring. The main seat contains a control board and a drive motor electrically connected to the control board. The top of the main seat has a mounting groove to expose the output shaft of the drive motor. The output shaft has a first magnetic coupling. The grinding assembly is detachably mounted on the mounting groove. One end of the grinding assembly has a second magnetic coupling coaxially connected to its internal grinding disc. The second magnetic coupling is spaced and fitted onto the first magnetic coupling. A magnetic coupling is used; a locking ring is fixedly sleeved on the grinding assembly and detachably connected to the main seat; when the locking ring is connected to the main seat, it prevents the grinding assembly from detaching from the main seat; by modularly designing the coffee grinder into a detachable main seat and grinding assembly, the user can switch between locked and unlocked states through the locking ring structure. In the unlocked state, the grinding assembly can be disassembled for efficient cleaning by the user; and further, by using the first and second magnetic couplings as transmission structures, the convenience of disassembly and assembly and the user experience are further improved. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the drive motor and the first magnetic coupling of this utility model; Figure 4 This is a schematic diagram of the grinding assembly and the second magnetic coupling of this utility model; Figure 5 This is a cross-sectional view of the present invention; Figure 6 This is a schematic diagram of the locking ring and retaining ring structure of this utility model; Figure 7 This is a perspective view of the locking ring of this utility model; Figure 8 This is a perspective view of the base of this utility model; Figure 9 This is another perspective view of the base of this utility model.

[0015] The symbols for the main components are explained below: 1 Main seat; 11 Drive motor; 12 Mounting slot; 13 Annular step; 131 Second notch; 14 Clamping ring; 141 First notch; 142 Positioning protrusion; 2. First magnetic coupling; 3. Grinding assembly; 31. Second flange; 32. Bean storage bin; 33. Moving grinding disc; 34. Fixed grinding disc 4. Second magnetic coupling; 5. Locking ring; 51. First flange; 52. Abutment ring; 53. Positioning recess; 6. Waterproof sleeve. Detailed Implementation

[0016] To more clearly illustrate this utility model, the following description, in conjunction with the accompanying drawings, will provide a further picture.

[0017] In the following description, specific examples are given to provide a more in-depth understanding of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them. It should be understood that the specific embodiments described are only used to explain the present invention and are not intended to limit the present invention.

[0018] It should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the said feature, integral, step, operation, element, or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, or combinations thereof.

[0019] To address the aforementioned technical problems, this application provides a quick-release coffee grinder with a radial magnetic coupling structure. Please refer to the appendix. Figure 1 To be continued Figure 9 The system includes a main seat 1, a grinding assembly 3, and a locking ring 5. The main seat 1 houses a control board and a drive motor 11 electrically connected to the control board. The top of the main seat 1 has a mounting groove 12, exposing the output shaft of the drive motor 11. The output shaft has a first magnetic coupling 2. The grinding assembly 3 is detachably mounted on the mounting groove 12. One end of the grinding assembly 3 has a second magnetic coupling 4 coaxially connected to its internal grinding disc, and the second magnetic coupling 4 is spaced and fitted onto the first magnetic coupling 2. The locking ring 5 is fixedly fitted onto the grinding assembly 3 and detachably connected to the main seat 1. When the locking ring 5 is connected to the main seat 1, it prevents the grinding assembly 3 from detaching from the main seat 1. The following describes the specific usage of this application to further illustrate the solution: First, the drive motor 11 drives the grinding assembly 3 to grind coffee beans into coffee powder of the desired particle size. The user collects the coffee powder and prepares a coffee beverage using a brewing method suitable for the type of coffee beans. It should be noted that the grinding assembly 3 and the base are based on a modular design and are detachable. When cleaning is required, the grinding assembly 3 can be disassembled to expose the corresponding grinding disc assembly, which can then be rinsed using a tool. In use, the grinding assembly 3 and the base are locked together by a locking ring 5, which can be threaded. The structure, using a snap-fit ​​design, secures the bean-grinding component and the base together. Disassembly is achieved simply by adjusting the threaded or snap-fit ​​structure. The modular design of the coffee grinder, consisting of a detachable main base 1 and a grinding component 3, allows users to switch between locked and unlocked states via a locking ring 5. In the unlocked state, the grinding component 3 can be disassembled for efficient cleaning. Furthermore, the use of a first magnetic coupling 2 and a second magnetic coupling 4 as the transmission structure eliminates the need for coaxiality considerations as with conventional rigid contacts, further enhancing the convenience of disassembly and assembly and improving the user experience.

[0020] In this embodiment, the first magnetic coupling 2 is also fitted with a water-proof sleeve 6, and the outer wall of the water-proof sleeve 6 forms a preset gap with the inner wall of the second magnetic coupling 4. It is easy to understand that since the electrical components in this application are basically placed inside the main seat 1, the water-proof sleeve 6 can further protect the first magnetic coupling 2 and further protect the electrical components from the influence of water droplets during cleaning. In a further embodiment, the open end of the water-proof sleeve 6 is fitted with the inner wall of the main seat 1 to isolate the first magnetic coupling, so as to further improve the protection performance. For the specific cooperation between the first magnetic coupling 2 and the second magnetic coupling 4, you can refer to the technical details of the magnetic coupling in the prior art, which will not be repeated here. In terms of use, the first magnetic coupling and the second magnetic coupling also have the following positive effects: First, in terms of thermal management, the output shaft of the traditional physically connected drive motor will heat up, and the heat will be directly conducted to the coffee beans through the metal shaft. The coffee beans will accelerate the volatilization and oxidation of flavor substances when heated, leading to The aroma of ground coffee is lost, resulting in a bland and unclear flavor, which is especially noticeable in commercial settings with continuous brewing. In this application, although the drive motor 11 and the grinding assembly 3 still generate heat, the main heat conduction path is cut off, greatly reducing the temperature rise of the coffee beans, ensuring the quality of the coffee powder, perfectly preserving the original aroma and flavor, and achieving ultimate consistency and high quality in flavor. Secondly, regarding operating noise, in traditional physical connection schemes, the vibration and noise of the drive motor 21 are transmitted to the entire grinder body through rigid connection, generating considerable noise. In this application, the first and second magnetic couplings effectively isolate the vibration of the drive motor during operation through magnetic coupling, making the coffee grinder run more smoothly and quietly. At this time, the main source of noise will only be the sound of coffee beans being crushed and ground, improving the user experience and making it more suitable for use in scenarios such as homes and high-end coffee shops.

[0021] In this embodiment, the inner wall of the mounting groove 12 is also provided with an annular step 13; it also includes a retaining ring 14, which is installed at the opening of the mounting groove 12; a retaining ring 14 and an annular step 13 form a retaining space; the inner ring of the retaining ring 14 is provided with a first notch 141, and the outer side of the locking ring 5 is provided with a first flange 51 that can enter the retaining space through the first notch 141; the shell of the grinding assembly 3 is also provided with a second flange 31. In the locked state, the second flange 31 is located in the retaining space and is pressed by the bottom end of the locking ring 5; it is easy to understand that after the first flange 51 enters the retaining space through the first notch 141, the user can rotate the locking ring 5 to make the locking ring 5 and the retaining ring 14 rotate relative to each other. At this time, the first flange 51 moves away from the first notch 141, and the first flange 51 and the retaining ring 14 are locked together. The ring 14 abuts against the bottom of the locking ring 5, pressing the second flange 31. This creates structural interference between the locking ring 14 and the first flange 51 in the direction of the coffee grinder assembly 3's release, resulting in a locked state. To change from the locked state to the unlocked state, simply rotate the locking ring 5 in the opposite direction, allowing the first flange 51 to disengage from the first notch 141. The second flange 31 is then released, thus unlocking the machine. This structural solution is simple and provides a better user experience. In a further embodiment, the outer wall of the locking ring 5 is also provided with an abutment ring 52. When the abutment ring 52 and the first flange 51 rotate to a preset position, they jointly clamp the locking ring 14. The addition of the abutment ring 52 significantly improves the locking stability and prevents the locking ring 14 from loosening during the coffee machine's rotation.

[0022] In this embodiment, the retaining ring 14 and the abutment ring 52 are respectively provided with positioning protrusions 142 and positioning recesses 53 on their opposing sides. It is easy to understand that in the locked state, the positioning protrusions 142 are embedded in the positioning recesses 53 to play a limiting role. More importantly, after switching from the unlocked state to the locked state, the positioning protrusions 142 and positioning recesses 53 engage with each other and emit sound feedback to inform the user that the expected locking position has been reached.

[0023] In this embodiment, the annular step 13 is provided with a second notch 131 for the second flange 31 to be inserted. It is easy to understand that, in order to further prevent the grinding assembly 3 from rotating along with the drive motor 11, thus affecting the grinding quality, the second flange 31 and the second notch 131 cooperate with each other. In the rotation direction of the drive motor 11, the second flange 31 and the second notch 131 form a mutually engaging structure, further enhancing the integration of the grinding assembly 3 and the main seat 1. In a further embodiment, the first notch 141 corresponds to the position of the second notch 131, exposing the second notch 131. After cleaning, the grinding assembly 3 is inserted into the mounting slot 12. The user can visually observe the positions of the second flange 31 and the second notch 131 through the first notch 141, enabling quick assembly.

[0024] In this embodiment, the interior of the coffee grinding assembly 3 is provided with a moving grinding disc 33 and a fixed grinding disc 34 forming a grinding space. The moving grinding disc 33 is fixedly connected to the second magnetic coupling 4. The outer wall of the coffee grinding assembly is provided with a powder outlet channel that communicates with the grinding space. The powder outlet channel is used to guide the ground coffee powder to the powder collection cup.

[0025] In this embodiment, the end of the grinding assembly 3 away from the main seat 1 is also provided with a bean storage compartment 32. The bean storage compartment 32 is connected to the grinding space through the bean drop channel. The bean storage compartment 32 can temporarily store coffee beans without requiring the user to put them in one by one, thus improving the user experience of the coffee grinder.

[0026] The advantages of this utility model are: 1. By modularly designing the coffee grinder into a detachable main unit and grinding component, users can switch between locked and unlocked states using a locking ring structure. In the unlocked state, the grinding component can be disassembled for efficient cleaning. 2. By using the first magnetic coupling and the second magnetic coupling as the transmission structure, the convenience of disassembly and assembly and the user experience are further improved; 3. The combination of the first and second magnetic couplings ensures power transmission while cutting off the main heat conduction path, greatly reducing the temperature rise of coffee beans, ensuring the quality of coffee powder, perfectly preserving the original aroma and flavor of coffee powder, and achieving ultimate consistency and high quality in flavor. The above-disclosed embodiments are only a few specific examples of this utility model. However, this utility model is not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A quick-release coffee grinder having a radial magnetic coupling structure, characterized in that, include: The main seat contains a control board and a drive motor electrically connected to the control board; the top of the main seat has a mounting slot to expose the output shaft of the drive motor; the output shaft is provided with a first magnetic coupling. A coffee grinding assembly is detachably installed on the mounting slot; one end of the coffee grinding assembly is provided with a second magnetic coupling coaxially connected to its internal grinding disc, and the second magnetic coupling is spaced and fitted onto the first magnetic coupling; A locking ring is fixedly sleeved on the grinding assembly and detachably connected to the main seat; When the locking ring is connected to the main seat, it prevents the grinding assembly from detaching from the main seat.

2. A quick-release coffee grinder with a radial magnetic coupling structure according to claim 1, characterized in that, The first magnetic coupling is also fitted with a water-proof sleeve, and the outer wall of the water-proof sleeve and the inner wall of the second magnetic coupling have a preset gap.

3. A quick-release coffee grinder with a radial magnetic coupling structure according to claim 2, characterized in that, The open end of the water-proof sleeve is fitted against the inner bottom wall of the main seat to isolate the first magnetic coupling.

4. A quick-release coffee grinder with a radial magnetic coupling structure according to claim 1, characterized in that, The inner wall of the mounting groove is also provided with an annular step; it also includes a retaining ring, which is installed at the opening of the mounting groove; the retaining ring and the annular step form a locking space; the inner ring of the retaining ring is provided with a first notch, and the outer side of the locking ring is provided with a first flange that can enter the locking space through the first notch; the shell of the grinding assembly is also provided with a second flange, which is located in the locking space and is pressed by the bottom end of the locking ring in the locked state.

5. A quick-release coffee grinder with a radial magnetic coupling structure according to claim 4, characterized in that, The outer wall of the locking ring is also provided with an abutment ring, which, together with the first flange, clamps the retaining ring when rotated to a preset position.

6. A quick-release coffee grinder with a radial magnetic coupling structure according to claim 5, characterized in that, The retaining ring and the abutment ring have positioning protrusions and positioning recesses on their opposite sides.

7. A quick-release coffee grinder with a radial magnetic coupling structure according to claim 4, characterized in that, The annular step is provided with a second notch for the second flange to be inserted.

8. A quick-release coffee grinder with a radial magnetic coupling structure according to claim 7, characterized in that, The first notch corresponds to the position of the second notch, so as to expose the second notch.

9. A quick-release coffee grinder with a radial magnetic coupling structure according to any one of claims 1-8, characterized in that, The grinding assembly has a moving grinding disc and a fixed grinding disc inside, forming a grinding space. The moving grinding disc is fixedly connected to the second magnetic coupling. The outer wall of the grinding assembly has a powder outlet channel that communicates with the grinding space.

10. A quick-release coffee grinder with a radial magnetic coupling structure according to claim 9, characterized in that, The grinding assembly is also provided with a bean storage bin at the end away from the main seat, and the bean storage bin is connected to the grinding space through a bean drop channel.

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