Grinding wheel assembly for a grinder

Abstract

The utility model relates to a bean grinder with grinding wheel assembly convenient to disassemble, including main body, grinding bin assembly, upper grinding wheel assembly, lower grinding wheel assembly and adjusting ring, its characterized in be that grinding bin assembly includes transmission motor and grinding bin fixed on main body respectively, and upper grinding wheel assembly and lower grinding wheel assembly are detachably connected with grinding bin, the upper side of grinding bin is equipped with the opening for the upper grinding wheel assembly and lower grinding wheel assembly to enter or leave the inside of grinding bin, the upper side of the inner wall of grinding bin is equipped with screw thread structure, adjusting ring forms the adjusting mechanism for making adjusting ring drive upper grinding wheel assembly to move up and down along the vertical direction and adjusts the fineness of grinding powder through the connection cooperation with screw thread structure, makes upper grinding wheel assembly and lower grinding wheel assembly easier to clean, improves the grinding effect, reduces the opportunity of the sanitary problem because of the powder accumulation.

Description

Technical Field

[0001] This utility model relates to the technical field of coffee grinding equipment, and specifically to a coffee grinder with an easily detachable grinding wheel assembly. Background Technology

[0002] A coffee grinder is a machine specifically designed to grind coffee beans and other beans into powder. It grinds the beans by rotating a set of upper and lower grinding discs. After each use, the grinder needs to be cleaned. However, the grinding discs on existing grinders are not removable, making it difficult for users to clean them. This causes coffee powder to easily accumulate on the grinding discs, affecting the grinding effect and potentially leading to hygiene problems.

[0003] Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a coffee grinder with an easily detachable grinding wheel assembly. By disassembling the adjusting ring, users can easily remove the upper and lower grinding wheel assemblies from the upper opening of the grinding chamber, making the upper and lower grinding wheel assemblies easier to clean, improving the grinding effect, and reducing the chance of hygiene problems caused by powder accumulation.

[0005] The purpose of this utility model is achieved as follows: A coffee grinder with an easily detachable grinding wheel assembly includes a main body, a grinding chamber assembly, an upper grinding wheel assembly, a lower grinding wheel assembly, and an adjusting ring. The grinding chamber assembly comprises a drive motor and a grinding chamber respectively fixed to the main body. The upper and lower grinding wheel assemblies are detachably connected to the grinding chamber. The upper side of the grinding chamber has an opening for the upper and lower grinding wheel assemblies to enter or exit the inner side of the grinding chamber. The upper side of the inner wall of the grinding chamber has a threaded structure. The adjusting ring, through connection and cooperation with the threaded structure, forms an adjusting mechanism for moving the upper grinding wheel assembly vertically up and down to adjust the fineness of the ground coffee.

[0006] As a specific embodiment, the adjusting ring includes a rotating block and a connecting ring, with the connecting ring sleeved on the outside of the rotating block and the two connected and fixed to each other.

[0007] As a specific embodiment, a hand contact is provided on the rotating block above the connecting ring. The hand contact extends radially outward, and its vertical projection covers the upper side of the grinding chamber.

[0008] As a specific embodiment, the lower grinding wheel assembly is placed at the bottom inner side of the grinding chamber. The grinding chamber is provided with a spring groove, and an adjusting spring is provided in the spring groove. The upper end of the adjusting spring is connected and engaged with the upper grinding wheel assembly. Under the action of the downward pressure of the adjusting ring and the upward thrust of the adjusting spring, the upper grinding wheel assembly is in clearance engagement with the lower grinding wheel assembly.

[0009] As a specific embodiment, the surface of the adjusting ring is provided with a scale for displaying its rotation range relative to the grinding chamber.

[0010] As a specific embodiment, the upper grinding wheel assembly is provided with a connecting protrusion that protrudes radially outward, and the upper end of the adjusting spring abuts against the lower side of the connecting protrusion.

[0011] As a specific embodiment, a positioning groove is provided on the grinding chamber above the spring groove. The upper side of the positioning groove is open, and the connecting protrusion can enter or leave the positioning groove through the upper opening of the positioning groove. The connecting protrusion and the positioning groove are connected and cooperated to fix the upper grinding wheel assembly and the grinding chamber in a circumferential position.

[0012] As a specific solution, a limiting step is provided between the positioning groove and the spring groove, and the lower side of the connecting protrusion abuts against the limiting step or the spring is adjusted to form a gap between the connecting protrusion and the limiting step.

[0013] As a specific embodiment, the drive shaft of the drive motor extends upward into the inner side of the grinding chamber and is detachably connected to the lower grinding wheel assembly via a locking device.

[0014] As a specific embodiment, the grinding chamber is provided with a powder outlet for discharging soybean powder, and the main body is provided with a powder outlet connection part corresponding to the powder outlet, and the powder outlet connection part is connected to a powder outlet pipe that can be detached from it.

[0015] The beneficial effects of this utility model are: The adjustment ring enables quick assembly and disassembly of the grinding chamber from the upper and lower grinding wheel assemblies. This allows the upper and lower grinding wheel assemblies to be easily removed from the upper opening of the grinding chamber, making them easier to clean, improving grinding efficiency, and reducing the chance of hygiene problems caused by powder accumulation. Attached Figure Description

[0016] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the present utility model.

[0017] Figure 2 This is an exploded view of an embodiment of the present utility model. Figure 1 .

[0018] Figure 3 This is an exploded view of an embodiment of the present utility model. Figure 2 .

[0019] Figure 4 This is an exploded view of an embodiment of the present utility model. Figure 3 .

[0020] Figure 5 This is a schematic diagram of the disassembly and washing process according to an embodiment of the present invention. Figure 1 .

[0021] Figure 6 This is a schematic diagram of the disassembly and washing process according to an embodiment of the present invention. Figure 2 .

[0022] Figure 7 This is a schematic diagram of the disassembly and washing process according to an embodiment of the present invention. Figure 3 .

[0023] Figure 8 This is a schematic diagram of the disassembly and washing process according to an embodiment of the present invention. Figure 4 .

[0024] Figure 9 This is a schematic diagram of the grinding chamber in an embodiment of the present invention.

[0025] Figure 10 This is an enlarged view of embodiment A of the present invention. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] See Figures 1-10 This coffee grinder with an easily detachable grinding wheel assembly includes a main body 7, a grinding chamber assembly, an upper grinding wheel assembly 2, a lower grinding wheel assembly 3, and an adjusting ring 4. The grinding chamber assembly comprises a drive motor 6 and a grinding chamber 1 respectively fixed to the main body 7. The upper grinding wheel assembly 2 and the lower grinding wheel assembly 3 are detachably connected to the grinding chamber 1. The upper side of the grinding chamber 1 has an opening for the upper grinding wheel assembly 2 and the lower grinding wheel assembly 3 to enter or exit the inner side of the grinding chamber 1. The upper side of the inner wall of the grinding chamber 1 has a threaded structure. The adjusting ring 4... The adjustment ring 4, in conjunction with the threaded structure, forms an adjustment mechanism for moving the upper grinding wheel assembly 2 vertically up and down and adjusting the fineness of the grinding powder. The adjustment ring 4 has a simple structure and can achieve quick assembly and disassembly of the grinding chamber 1 with the upper grinding wheel assembly 2 and the lower grinding wheel assembly 3. This allows the upper grinding wheel assembly 2 and the lower grinding wheel assembly 3 to be easily removed from the upper opening of the grinding chamber 1, making them easier to clean, improving the grinding effect, and reducing the chance of hygiene problems caused by powder accumulation.

[0028] Furthermore, the adjusting ring 4 includes a rotating block 41 and a connecting ring 42. The connecting ring 42 is sleeved on the outside of the rotating block 41 and the two are connected and fixed to each other. Specifically, the connecting ring 42 and the rotating block 41 can be connected by tight fit, fixed by welding, or the two can be integrally formed.

[0029] When the rotating block 41 and the connecting ring 42 are two different parts that are machined separately, the machining process of both can be simplified. When the two are integrally formed, the overall installation process can be simplified.

[0030] Furthermore, a hand touch 411 is provided on the rotating block 41 above the connecting ring 42. The hand touch 411 extends radially outward, and its vertical projection covers the upper side of the grinding chamber 1. The hand touch 411 allows the user to easily rotate the adjusting ring 4, and it can also cover the upper side of the grinding chamber 1, making the product more aesthetically pleasing.

[0031] Furthermore, the lower grinding wheel assembly 3 is placed at the inner bottom of the grinding chamber 1. The grinding chamber 1 is provided with a spring groove 11, and an adjusting spring 5 is provided in the spring groove 11. The spring groove 11 can limit the adjusting spring 5, making the adjusting spring 5 easier to install and less likely to be accidentally displaced during use.

[0032] The upper end of the adjusting spring 5 is connected to the upper grinding wheel assembly 2. Under the action of the downward pressure of the adjusting ring 4 and the upward thrust of the adjusting spring 5, the upper grinding wheel assembly 2 is in clearance fit with the lower grinding wheel assembly 3. The adjusting spring 5 and the adjusting ring 4 work together on the upper grinding wheel assembly 2, so that the vertical force of the upper grinding wheel assembly 2 forms a dynamic balance, maintaining the vertical position between it and the lower grinding wheel assembly 3 relatively fixed, while also creating a suitable gap between the two for grinding beans.

[0033] Furthermore, the adjusting ring 4 is fixed to the grinding chamber 1 by a threaded connection, which further simplifies the installation connection structure between the adjusting ring 4 and the grinding chamber 1, enabling them to be quickly disassembled and assembled, and making it easier to adjust the pressure of the adjusting ring 4 on the upper grinding wheel assembly 2.

[0034] Furthermore, the surface of the adjusting ring 4 is provided with a scale 43 for displaying its rotation amplitude relative to the grinding chamber 1. Specifically, when installing the adjusting ring 4, the user rotates the adjusting ring 4 until it is just in close contact with the grinding wheel assembly 2, observes the scale information on the scale 43 (for example, the relative position of a certain scale with the mark on the grinding chamber 1 or the main body 7), and then makes a slight adjustment by rotating the adjusting ring 4 to rotate the adjusting ring 4 to the preset position so that the pressure of the adjusting ring 4 on the grinding wheel assembly 2 is moderate.

[0035] Furthermore, the upper grinding wheel assembly 2 is provided with a connecting protrusion 21 that protrudes radially outward. The upper end of the adjusting spring 5 abuts against the lower side of the connecting protrusion 21. The connecting protrusion 21 allows the adjusting spring 5 to be relatively far away from the center position of the upper grinding wheel assembly 2 and the lower grinding wheel assembly 3, making installation easier.

[0036] Furthermore, a positioning groove 12 is provided on the grinding chamber 1 above the spring groove 11. The upper side of the positioning groove 12 is open, and the connecting protrusion 21 can enter or leave the positioning groove 12 through the upper opening of the positioning groove 12. The connecting protrusion 21 and the positioning groove 12 are connected and cooperated to fix the upper grinding wheel assembly 2 and the grinding chamber 1 in a circumferential position. The positioning groove 12 can improve the installation accuracy of the upper grinding wheel assembly 2 and the grinding chamber 1, and further simplify the installation process of the two.

[0037] Furthermore, a limiting step 13 is provided between the positioning groove 12 and the spring groove 11. The lower side of the connecting protrusion 21 abuts against the limiting step 13, or the spring 5 is adjusted to form a gap between the connecting protrusion 21 and the limiting step 13. The limiting step 13 can prevent the upper grinding wheel assembly 2 from being too low and colliding with the lower grinding wheel assembly 3, thus protecting the upper grinding wheel assembly 2 and the lower grinding wheel assembly 3.

[0038] Furthermore, the drive shaft of the drive motor 6 extends upward into the inner side of the grinding chamber 1 and is detachably connected to the lower grinding wheel assembly 3 via a locking device. Under the action of the drive motor 6, the lower grinding wheel assembly 3 and the upper grinding wheel assembly 2 can rotate relative to each other, thereby realizing the grinding function. When it is necessary to clean the upper grinding wheel assembly 2 and the lower grinding wheel assembly 3, the adjusting ring 4 can be removed from the grinding chamber 1, and then the upper grinding wheel assembly 2 can be removed from the upper opening of the grinding chamber 1. Finally, the lower grinding wheel assembly 3 can be separated from the drive shaft by loosening the locking device and then removed from the upper opening of the grinding chamber 1.

[0039] Furthermore, the grinding chamber 1 is provided with a powder outlet 14 for discharging soybean powder, and the main body 7 is provided with a powder outlet connection part 71 corresponding to the powder outlet 14. The powder outlet connection part 71 is connected to a powder outlet pipe 8 that can be detached from it. The powder outlet pipe 8 can better guide the powder to flow outward, and the user can clean it by separating the powder outlet pipe 8 separately.

[0040] In this embodiment, the disassembly and cleaning process of the coffee grinder is as follows: like Figure 5 , Figure 6 As shown, first remove the adjusting ring 4 from the upper opening of the grinding chamber 1 by rotating the adjusting ring 4. Figure 7 As shown, after removing the grinding adjustment ring 4, remove the upper grinding wheel assembly 2. Figure 8 As shown, the lower grinding wheel assembly 3 can be removed from the opening of the grinding chamber 1 by loosening the locking piece on the drive shaft of the drive motor 6.

[0041] The above embodiments are merely preferred embodiments of this utility model, and other implementations are also possible. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model, and all such equivalent modifications or substitutions are included within the scope set forth in the claims of this application.

Claims

1. A coffee grinder with an easily detachable grinding wheel assembly, comprising a main body (7), a grinding chamber assembly, an upper grinding wheel assembly (2), a lower grinding wheel assembly (3), and an adjusting ring (4), characterized in that, The grinding chamber assembly includes a drive motor (6) and a grinding chamber (1) respectively fixed on the main body (7). The upper grinding wheel assembly (2) and the lower grinding wheel assembly (3) are detachably connected to the grinding chamber (1). The upper side of the grinding chamber (1) is provided with an opening for the upper grinding wheel assembly (2) and the lower grinding wheel assembly (3) to enter or leave the inner side of the grinding chamber (1). The upper side of the inner wall of the grinding chamber (1) is provided with a threaded structure. The adjusting ring (4) is connected and cooperated with the threaded structure to form an adjusting mechanism for driving the upper grinding wheel assembly (2) to move up and down in the vertical direction and adjusting the fineness of the grinding powder.

2. The coffee grinder with easily detachable grinding wheel assembly according to claim 1, characterized in that: The adjusting ring (4) includes a rotating block (41) and a connecting ring (42), the connecting ring (42) being sleeved on the outside of the rotating block (41) and the two being connected and fixed to each other.

3. The coffee grinder with easily detachable grinding wheel assembly according to claim 2, characterized in that: The rotating block (41) is provided with a hand touch (411) above the connecting ring (42). The hand touch (411) extends radially outward, and the vertical projection of the hand touch (411) covers the upper side of the grinding chamber (1).

4. The coffee grinder with easily detachable grinding wheel assembly according to claim 1, characterized in that: The lower grinding wheel assembly (3) is placed at the bottom of the inner side of the grinding chamber (1). The grinding chamber (1) is provided with a spring groove (11). An adjusting spring (5) is provided in the spring groove (11). The upper end of the adjusting spring (5) is connected and cooperates with the upper grinding wheel assembly (2). The upper grinding wheel assembly (2) is in clearance cooperation with the lower grinding wheel assembly (3) under the action of the downward pressure of the adjusting ring (4) and the upward thrust of the adjusting spring (5).

5. The coffee grinder with easily detachable grinding wheel assembly according to claim 4, characterized in that: The surface of the adjusting ring (4) is provided with a scale (43) for displaying its rotation range relative to the grinding chamber (1).

6. The coffee grinder with easily detachable grinding wheel assembly according to claim 4, characterized in that: The upper grinding wheel assembly (2) is provided with a connecting protrusion (21) that protrudes outward in the radial direction, and the upper end of the adjusting spring (5) abuts against the lower side of the connecting protrusion (21).

7. The coffee grinder with easily detachable grinding wheel assembly according to claim 6, characterized in that: The grinding chamber (1) is provided with a positioning groove (12) above the spring groove (11). The upper side of the positioning groove (12) is open. The connecting protrusion (21) can enter or leave the positioning groove (12) through the upper opening of the positioning groove (12). The connecting protrusion (21) and the positioning groove (12) are connected and cooperated to fix the upper grinding wheel assembly (2) and the grinding chamber (1) in a circumferential position.

8. The coffee grinder with easily detachable grinding wheel assembly according to claim 7, characterized in that: A limiting step (13) is provided between the positioning groove (12) and the spring groove (11). The lower side of the connecting protrusion (21) abuts against the limiting step (13) or the spring (5) is adjusted to form a gap between the connecting protrusion (21) and the limiting step (13).

9. The coffee grinder with easily detachable grinding wheel assembly according to claim 1, characterized in that: The drive shaft of the drive motor (6) extends upward into the inner side of the grinding chamber (1) and is detachably connected to the lower grinding wheel assembly (3) via a locking member.

10. A coffee grinder with an easily detachable grinding wheel assembly according to any one of claims 1-9, characterized in that: The grinding chamber (1) is provided with a powder outlet (14) for discharging soybean powder. The main body (7) is provided with a powder outlet connection part (71) corresponding to the powder outlet (14). The powder outlet connection part (71) is connected to a powder outlet pipe (8) that can be detached from it.

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