A quick-release coffee grinder based on a flexible and rigid coupling structure

Abstract

This utility model discloses a quick-release coffee grinder based on a flexible and rigid coupling structure, including a main base, a grinding assembly, a silicone component, and a locking ring. The main base houses a control board and a drive motor electrically connected to the control board. The main base has a mounting slot to expose the output shaft of the drive motor, which has a first coupling. The grinding assembly is detachably installed in the mounting slot. The grinding assembly has a second coupling connected to its internal grinding disc. The silicone component connects the first and second couplings. The locking ring is sleeved on the grinding assembly and detachably connected to the main base. The user can switch between locked and unlocked states using the locking ring structure. In the unlocked state, the grinding assembly can be disassembled for efficient cleaning. The first coupling, second coupling, and silicone component work together to achieve coupling transmission, compensating for axial, radial, and angular deviations within a certain range, reducing the precision requirements for user assembly.

Description

Technical Field

[0001] This utility model relates to the field of coffee grinders, and in particular to a quick-release coffee grinder based on a flexible and rigid 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 ground according to the type and roast level of the coffee beans to maximize their quality. Furthermore, different brewing methods require different grind sizes. For example, for the same dark roast coffee beans, pour-over... Coffee grinders require larger particle sizes, while espresso machines require finer ones. Furthermore, when different varieties of coffee beans are ground using a single grinder, coffee powder from previous grinder cycles remains on the inner wall of the grinding chamber. Because the grinding disc is physically connected to the output shaft of the drive motor, it's often difficult to maintain the same concentricity as the manufacturer's settings during installation, reducing the user's ease of use. Ultimately, the grinding disc assembly cannot be quickly disassembled for maintenance, making it difficult to clean the inner wall of the grinding disc. This results in flavor mixing from different coffee beans, affecting 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 these 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 based on a flexible and rigid 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 has a rigid first coupling. A coffee grinding assembly is detachably installed on the mounting slot; one end of the coffee grinding assembly is provided with a second coupling that is coaxially connected to its internal grinding disc; Silicone components, wherein the silicone components are connected to the opposite ends of the first coupling and the second coupling; A locking ring, which is 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 coupling and the second coupling each have a first protrusion and a second protrusion spaced apart at their opposite ends. The silicone part consists of a main body and a plurality of protrusions located on the cylindrical surface of the main body. The first protrusion and the second protrusion form a space to accommodate the main body, and the protrusions are correspondingly placed between the first protrusion and the second protrusion.

[0006] As an improvement of this application, notches are formed on the first opposite sides of the end faces of the first coupling and the second coupling, and abutting portions are formed on the second opposite sides; the opposite ends of the silicone part are respectively provided with a first groove and a second groove; when connected, the abutting portions of the first coupling and the second coupling are correspondingly embedded into the first groove and the second groove.

[0007] As an improvement of this application, the first trench and the second trench are arranged in different directions.

[0008] 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 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, in the locked state, is located in the locking space and is pressed by the bottom end of the locking ring.

[0009] As an improvement of this application, the silicone part is further provided with frustum portions at both ends, the frustum portions being at the same height as the abutment portion and located at the center of the end face of the silicone part; the opposite sidewalls of the first groove and the second groove are further provided with arc recesses corresponding to the cylindrical surfaces of the frustum portions.

[0010] 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.

[0011] 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.

[0012] As an improvement of this application, the annular step is provided with a second notch for the second flange to be inserted.

[0013] As an improvement to this application, the first notch corresponds to the position of the second notch to expose the second notch.

[0014] As an improvement of this application, the grinding assembly has a moving grinding disc and a fixed grinding disc inside to form a grinding space, the moving grinding disc being fixedly connected to the second magnetic coupling; the outer wall of the grinding disc assembly has a powder outlet channel communicating with the grinding space.

[0015] 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.

[0016] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model provides a quick-release coffee grinder based on a flexible and rigid coupling structure, including a main base, a grinding assembly, a silicone part, 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 rigid first coupling. The grinding assembly is detachably mounted on the mounting groove. One end of the grinding assembly has a second coupling coaxially connected to its internal grinding disc. The silicone part connects the opposing ends of the first and second couplings. The locking ring... It is fitted onto the grinding assembly and is detachably connected to the main unit; when the locking ring is connected to the main unit, it prevents the grinding assembly from detaching from the main unit; by modularly designing the coffee grinder into a detachable main unit 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; and the coupling transmission is achieved through the coordinated cooperation of the first coupling, the second coupling, and the silicone part, which can compensate for axial, radial, and angular deviations within a certain range, making assembly easier and reducing the precision requirements for user assembly. Attached Figure Description

[0017] 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 moving grinding disc structure of this utility model; Figure 4 This is a schematic diagram showing the fit between the first coupling, the second coupling, and the silicone part of this utility model; Figure 5 This is a schematic diagram showing the mating of the first coupling, the second coupling, and the silicone part according to another embodiment of the present invention; Figure 6 This is a schematic diagram showing the fit between the main seat, retaining ring, and locking ring of this utility model; Figure 7This is a schematic diagram of the locking ring assembly of this utility model; Figure 8 This is a schematic diagram of the main seat structure of this utility model.

[0018] 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 coupling; 21. First protruding claw; 3. Grinding assembly; 31. Second flange; 32. Bean storage bin; 33. Moving grinding disc; 4. Second coupling; 41. Second claw; 5. Locking ring; 51. First flange; 52. Abutment ring; 53. Positioning recess; 6. Silicone part; 61. Main body; 62. Raised strip; 63. First groove; 64. Second groove; a. notch; b. abutment; c. frustum; d. concave arc. Detailed Implementation

[0019] To more clearly illustrate this utility model, the following description, in conjunction with the accompanying drawings, will provide a further picture.

[0020] 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.

[0021] 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.

[0022] To address the aforementioned technical problems, this application provides a quick-release coffee grinder based on a flexible and rigid coupling structure. Please refer to the appendix. Figure 1 To be continued Figure 8The system includes a main seat 1, a grinding assembly 3, a silicone component 6, 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 rigid first coupling 2. The grinding assembly 3 is detachably mounted on the mounting groove 12. One end of the grinding assembly 3 has a second coupling 4 coaxially connected to its internal grinding disc. The silicone component 6 connects the opposing ends of the first coupling 2 and the second coupling 4. The locking ring 5 is fitted onto the grinding assembly 3 and detachably connected to the main seat 1. When connected to the main seat 1, the locking ring 5 prevents the grinding assembly 3 from detaching from the main seat 1. The following describes the specific usage to further illustrate the solution of this application: 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 tools. In use, the grinding assembly 3 and the base are locked together by a locking ring 5. The locking ring 5 can adopt a threaded structure or a snap-fit ​​structure to secure the grinding assembly 3 and the base together. During disassembly, the threaded or snap-fit ​​structure can be adjusted to unlock it. Therefore, it is evident that... By modularly designing the coffee grinder into a detachable main unit 1 and a grinding assembly 3, the user can switch between locked and unlocked states using a locking ring 5. In the unlocked state, the grinding assembly 3 can be disassembled for efficient cleaning. Furthermore, the first coupling 2, the second coupling 4, and the silicone component 6 work together to achieve shaft transmission and compensate for axial, radial, and angular deviations within a certain range, greatly reducing the stringency of installation and making it easier for users to assemble themselves, thus lowering the precision requirements. In terms of usability, the silicone component 6, due to its different material hardness compared to the first coupling 2 and the second coupling 4, also provides excellent cushioning and shock absorption, significantly reducing noise during the grinding process.

[0023] As a specific coupling structure, in this embodiment, the first coupling 2 and the second coupling 4 each have a first protruding claw 21 and a second protruding claw 41 spaced apart at their opposite ends. The silicone part 6 consists of a main body 61 and a plurality of protruding strips 62 located on the cylindrical surface of the main body 61. The first protruding claw 21 and the second protruding claw 41 form a space to accommodate the main body 61, and the protruding strips 62 are correspondingly placed between the first protruding claw 21 and the second protruding claw 41. It is easy to understand that during the operation of the coffee grinder, the force transmission relies on the sides of the first protruding claw 21 and the second protruding claw 41, and the first protruding claw 21 and the second protruding claw 41 are transmitted through the protruding strips. With spacing of 62, this contact mode effectively reduces noise caused by resonance of rigid structures. During disassembly and assembly, the first coupling 2 and silicone part 6 remain in the mounting slot 12, while the second coupling 4 is pulled out along with the barrel grinder assembly 3. Naturally, the silicone part 6 can also be easily separated from the first coupling 2. After cleaning, the silicone part 6 is pre-assembled into the first coupling 2, which then attaches the second coupling 4 to the other part of the silicone part 6, thus assembling the first coupling 2, the second coupling 4, and the silicone part 6. At this point, the coffee grinder can be used normally.

[0024] As another structural solution, notches a are formed on the first opposite sides of the end faces of the first coupling 2 and the second coupling 4, and abutment portions b are formed on the second opposite sides; the opposite ends of the silicone part 6 are respectively provided with a first groove 63 and a second groove 64; when connected, the abutment portions b of the first coupling 2 and the second coupling 4 are correspondingly embedded into the first groove 63 and the second groove 64. At this time, the first coupling 2 and the second coupling 4 are also combined into a complete column under the use of the silicone part 6. The abutment portions b and the grooves play a role in force transmission when rotating; the specific assembly is similar to that in the previous embodiment, so it will not be described in detail. In a further embodiment, the first groove 63 and the second groove 64 are arranged in opposite directions, preferably at 90°. This design ensures stable force transmission during rotation. In yet another embodiment, the silicone part 6 is provided with frustums c at both ends. The frustums c are at the same height as the abutment part b and are located at the center of the end face of the silicone part 6. The opposite side walls of the first groove 63 and the second groove 64 are provided with arc recesses d corresponding to the cylindrical surface of the frustums c. The frustums c and the arc recesses d match each other to form a splice, ensuring the accuracy of installation when the silicone part 6 is pre-assembled on the first coupling 2 or the second coupling 4.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] In this embodiment, the interior of the grinding assembly 3 is provided with a moving grinding disc 33 and a fixed grinding disc forming a grinding space. The moving grinding disc 33 is fixedly connected to the second magnetic coupling. The outer wall of the grinding disc assembly is provided with a powder outlet channel communicating with the grinding space. The powder outlet channel is used to guide the ground coffee powder to the powder collection cup.

[0029] 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.

[0030] 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. The coupling transmission is achieved through the coordinated cooperation of the first coupling, the second coupling, and the silicone parts, and it can compensate for axial, radial, and angular deviations within a certain range. This makes assembly easier and reduces the precision requirements for user assembly.

[0031] 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 based on a flexible and rigid 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 has a rigid first coupling. A coffee grinding assembly is detachably installed on the mounting slot; one end of the coffee grinding assembly is provided with a second coupling that is coaxially connected to its internal grinding disc; Silicone components, wherein the silicone components are connected to the opposite ends of the first coupling and the second coupling; A locking ring, which is 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 based on a flexible and rigid coupling structure according to claim 1, characterized in that, The first coupling and the second coupling each have a first protrusion and a second protrusion spaced apart at their opposite ends. The silicone part consists of a main body and a plurality of protrusions located on the cylindrical surface of the main body. The first protrusion and the second protrusion form a space to accommodate the main body, and the protrusions are correspondingly placed between the first protrusion and the second protrusion.

3. A quick-release coffee grinder based on a flexible and rigid coupling structure according to claim 1, characterized in that, The first and second couplings have notches on their first opposite sides and abutments on their second opposite sides; the silicone part has a first groove and a second groove at its opposite ends; when connected, the abutments of the first and second couplings are respectively embedded into the first groove and the second groove.

4. A quick-release coffee grinder based on a flexible and rigid coupling structure according to claim 3, characterized in that, The first trench and the second trench are arranged in different directions.

5. A quick-release coffee grinder based on a flexible and rigid coupling structure according to claim 4, characterized in that, The silicone part is also provided with frustum portions at both ends, the frustum portions are at the same height as the abutment portion and are located at the center of the end face of the silicone part; the opposite side walls of the first groove and the second groove are also provided with arc recesses corresponding to the cylindrical surfaces of the frustum portions.

6. A quick-release coffee grinder based on a flexible and rigid 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.

7. A quick-release coffee grinder based on a flexible and rigid coupling structure according to claim 6, 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.

8. A quick-release coffee grinder based on a flexible and rigid coupling structure according to claim 7, characterized in that, The retaining ring and the abutment ring have positioning protrusions and positioning recesses on their opposite sides.

9. A quick-release coffee grinder based on a flexible and rigid coupling structure according to claim 6, characterized in that, The annular step is provided with a second notch for the second flange to be inserted.

10. A quick-release coffee grinder based on a flexible and rigid coupling structure according to claim 9, characterized in that, The first notch corresponds to the position of the second notch, so as to expose the second notch.

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