A bean grinder

Abstract

The utility model discloses a bean grinder, including support, bean grinder subassembly, powder pressing subassembly and hopper, and support is equipped with the support of can support hopper, and powder pressing subassembly is equipped with the powder pressing head of can move up and down to hopper, and bean grinder subassembly is equipped with the powder outlet channel, the support still is equipped with the sleeve of can hold powder pressing head, and the lower extreme of sleeve is connected with the hopper of support on the support, and one side of sleeve is equipped with the powder feeding channel of intercommunication with the powder outlet channel of bean grinder subassembly, and the powder feeding channel is equipped with the powder guide piece of elastic deformation in, and one end of powder guide piece is connected with powder feeding channel, and the other end is close to the center position of hopper and is located the top of hopper. Compared with prior art, the utility model discloses a bean grinder, and coffee powder is guided to the center position of hopper by powder guide piece and diffuses to the four around of hopper, and coffee powder also diffuses to the four around of hopper when powder pressing head presses powder, and the utility model has the advantages of greatly improving coffee powder diffusion uniformity and the extraction rate of each part area is close, improving the overall flavor of coffee and user experience good.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a coffee grinder. Background Technology

[0002] Chinese invention patent CN116115072B discloses an automatic coffee maker grinding and tamping mechanism. This mechanism includes a grinding assembly, a tamping assembly, and a coffee funnel assembly. The powder outlet on one side of the grinding assembly's cup holder is connected to the powder inlet on one side of the funnel seat of the coffee funnel assembly. The bottom of the funnel seat is connected to the extraction funnel, which contains an extraction screen. A first operating handle is located on one side of the extraction funnel, and an extraction spout is located at the bottom of the extraction funnel. However, in this automatic coffee maker grinding and tamping mechanism, the powder outlet on the cup holder side of the grinding assembly cannot extend outwards; otherwise, the tamping hammer would damage the powder outlet. Because the outlet cannot extend outwards and can only be located on one side of the funnel seat, the coffee powder is concentrated on one side of the extraction screen inside the funnel seat. When the tamping hammer tamps the powder, it is difficult for the coffee powder in the extraction screen to spread evenly, resulting in over-extraction in some areas and under-extraction in others, affecting the overall flavor of the coffee and providing a poor user experience. Utility Model Content

[0003] The purpose of this invention is to provide a coffee grinder that effectively improves the uniformity of coffee powder diffusion and provides a better user experience, thereby solving the aforementioned technical problems.

[0004] This utility model discloses a coffee grinder, comprising a support, a grinding assembly, a tamping assembly, and a funnel. The support has a base for supporting the funnel, the tamping assembly has a tamping head that can move up and down relative to the funnel, and the grinding assembly has a powder outlet channel. The support also has a sleeve for accommodating the tamping head. The lower end of the sleeve is connected to the funnel supported on the base. One side of the sleeve has a powder feeding channel that communicates with the powder outlet channel of the grinding assembly. The powder feeding channel has an elastically deformable powder guide, one end of which is connected to the powder feeding channel, and the other end is close to the center of the funnel and located above the funnel.

[0005] Preferably, the powder guiding element is made of silicone material.

[0006] Preferably, the powder guide is provided with a plurality of inverted buckles, and the powder feeding channel is provided with corresponding buckle holes that can be engaged with the inverted buckles.

[0007] Preferably, the powder pressing head is provided with a baffle that extends upward and can contact the other end of the powder guiding member.

[0008] Preferably, the powder feeding channel is provided with a groove below it to accommodate the powder guiding component.

[0009] Preferably, the support and sleeve of the bracket are integrally injection molded.

[0010] Preferably, the sleeve is transparent or semi-transparent.

[0011] Preferably, the grinding assembly further includes a first base, a first motor mounted on the first base, a moving grinding wheel and a fixed grinding wheel, the shaft of the first motor being drivenly connected to the moving grinding wheel, and the powder outlet channel being located on one side of the first base and connected to the powder outlet of the first base.

[0012] Preferably, the powder pressing assembly further includes a second base, a second motor mounted on the second base, a lifting frame with a rack and pinion, and a drive gear pivotally connected to the second base. The shaft of the second motor is connected to the drive gear, the drive gear meshes with the rack of the lifting frame, and the powder pressing head is connected to the lower end of the lifting frame.

[0013] Preferably, the powder pressing assembly further includes a driven gear pivotally connected to the second base, the lifting frame has two racks, the driving gear meshes with one of the racks, one side of the driven gear meshes with the driving gear, and the other side meshes with the other rack.

[0014] Compared with the prior art, the coffee grinder of this utility model has a flexible guide component in the powder feeding channel. One end of the coffee powder enters the guide component and is connected to the powder feeding channel, while the other end is close to the center of the funnel and located above the funnel. The coffee powder entering the powder feeding channel is guided by the guide component to the center of the funnel and then spreads to the surrounding area of ​​the funnel. When the tamping head moves downward towards the funnel to tamp the powder, it further spreads the coffee powder to the surrounding area of ​​the funnel. This has the advantages of greatly improving the uniformity of coffee powder diffusion and the similar extraction rate in different areas, thus enhancing the overall flavor of the coffee and providing a better user experience. Attached Figure Description

[0015] Figure 1 This is a perspective view of the coffee grinder of this utility model;

[0016] Figure 2 for Figure 1 A sectional view;

[0017] Figure 3 This is a three-dimensional view of the assembly of the bracket and the powder guiding component of this utility model;

[0018] Figure 4 for Figure 3 Exploded view;

[0019] Figure 5 This is a perspective view of the powder pressing assembly of this utility model after removing a portion of the second base.

[0020] The implementation and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0025] like Figures 1 to 4As shown, this utility model discloses a coffee grinder, including a support 1, a grinding assembly 2, a tamping assembly 3, and a funnel 4. The support 1 is provided with a support 11 for supporting the funnel 4. The tamping assembly 3 is provided with a tamping head 31 that can move up and down relative to the funnel 4. The grinding assembly 2 is provided with a powder outlet channel 21. The support 1 is also provided with a sleeve 12 for accommodating the tamping head 31. The lower end of the sleeve 12 is connected to the funnel 4 supported on the support 11. One side of the sleeve 12 is provided with a powder feeding channel 13 that communicates with the powder outlet channel 21 of the grinding assembly 2. The powder feeding channel 13 is provided with an elastically deformable powder guide 5. One end of the powder guide 5 is connected to the powder feeding channel 21, and the other end is close to the center of the funnel 4 and located above the funnel 4. The powder guide 5 is made of silicone material. Compared with the prior art, the coffee grinder of this utility model has an elastically deformable guide 5 in the powder feeding channel 13. One end of the coffee powder enters the guide 5 and is connected to the powder feeding channel 13, while the other end is close to the center of the funnel 4 and located above the funnel 4. The coffee powder entering the powder feeding channel 13 is guided by the guide 5 to the center of the funnel 4 and then spreads to the surrounding area of ​​the funnel 4 (the direction of the coffee powder is as follows). Figure 2 As the tamping head 31 moves downwards towards the funnel 4 to tamp the coffee powder, it further spreads the coffee powder around the funnel 4, which greatly improves the uniformity of coffee powder diffusion and makes the extraction rate of each part of the area more similar, thus enhancing the overall flavor of the coffee and providing a better user experience.

[0026] Furthermore, the powder guide component 5 is provided with two inverted buckles 51, and the powder feeding channel 13 is provided with corresponding buckle holes 14 that can be engaged with the inverted buckles. The inverted buckles 51 cooperate with the buckle holes 14 to facilitate the removal of the powder guide component 5 for cleaning or replacement.

[0027] Specifically, the powder pressing head 31 is provided with a baffle 311 that extends upward and can contact the other end of the powder guiding member 5, and a groove 15 is provided below the powder feeding channel 13 to accommodate the powder guiding member 5. When the powder pressing head 31 moves towards the funnel 4 to press powder, it enters the sleeve 12 and contacts the powder guiding member 5, squeezing and deforming the powder guiding member 5, causing the powder guiding member 5 to retract into the groove 15 to allow the powder pressing head 31 to pass through. When the powder pressing head 31 moves towards the funnel 4 and presses powder to the lowest position, the baffle 311 will contact the powder guiding member 5 to prevent the powder guiding member 5 from resetting and blocking the powder pressing head 31 from rising and returning to its original position after pressing powder.

[0028] Optionally, the support 11 and sleeve 12 of the bracket 1 are integrally injection molded, which has the advantages of simple production and high efficiency. The sleeve 12 is transparent or semi-transparent, making it easy for users to observe the coffee powder entering the funnel 4.

[0029] The grinding assembly 2 includes a first base 22, a first motor 23 mounted on the first base 22, a movable grinding wheel 24, and a fixed grinding wheel 25. The shaft of the first motor 23 is connected to the movable grinding wheel 24 for transmission. A powder outlet channel 21 is located on one side of the first base 22 and connected to the powder outlet of the first base 22. A worm gear 231 is provided on the shaft of the first motor 23, and a first gear 241 is provided at the lower end of the movable grinding wheel 24. A second gear 26 and a third gear 27 are also provided between the worm gear 231 and the first gear 241. The second gear 26 and the third gear 27 are fixed together as a whole. The worm gear 231 meshes with the second gear 26, and the third gear 27 meshes with the first gear 241. The number of teeth of the first gear 241 is greater than the number of teeth of the second gear 26, and the number of teeth of the second gear 26 is greater than the number of teeth of the third gear 27. When the first motor 23 is working, its shaft drives the worm gear 231 to rotate. The rotation of the worm gear 231 drives the second gear 26 to rotate, and the rotation of the second gear 26 also causes the third gear 27 to rotate. The third gear 27 then drives the first gear 241 to rotate, thereby causing the moving grinding wheel 24 to rotate relative to the fixed grinding wheel 25. The rotation of the moving grinding wheel 24 relative to the fixed grinding wheel 25 grinds coffee beans.

[0030] In some embodiments, the first motor 23 can be directly arranged longitudinally, with a pinion gear mounted on its shaft. The moving grinding wheel 24 has a large gear that meshes with the pinion gear, the large gear having a greater number of teeth than the pinion gear. When the first motor 23 is working, its shaft drives the pinion gear to rotate, and the rotation of the pinion gear drives the large gear to rotate, thereby causing the moving grinding wheel 24 to rotate relative to the fixed grinding wheel 25. The rotation of the moving grinding wheel 24 relative to the fixed grinding wheel 25 grinds coffee beans.

[0031] Furthermore, the tamping assembly 3 includes a second base 32, a second motor 33 mounted on the second base 32, a lifting frame 34 with a rack 341, and a drive gear 35 pivotally connected to the second base 32. The lifting frame 34 can move up and down within the second base 32. The shaft of the second motor 33 is connected to the drive gear 35 (the drive gear 35 is directly fixed to the shaft of the second motor 33). The drive gear 35 meshes with the rack 341 of the lifting frame 34, and the tamping head 31 is connected to the lower end of the lifting frame 34. When the second motor 33 is working, its shaft drives the drive gear 35 to rotate. The rotation of the drive gear 35 drives the rack 341 to move the lifting frame 34 up and down within the second base 32. When the lifting frame 34 moves downward, it drives the tamping head 31 to tamp the coffee powder in the funnel 4.

[0032] like Figure 5As shown, in some embodiments, the powder pressing assembly 3 may further include a driven gear 36 pivotally connected to the second base 32. A rack 341 is provided on each side of the lifting frame 34. The driving gear 35 meshes with one of the racks 341, and the driven gear 36 meshes with the driving gear 35 on one side and with the other rack 341 on the other side. The rack 341 on each side of the lifting frame 34, cooperating with the driving gear 35 and the driven gear 36, has the advantage of making the lifting frame 34 rise and fall smoothly and stably.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coffee grinder, comprising a support frame, a grinding assembly, a tamping assembly, and a funnel, wherein the support frame is provided with a support for supporting the funnel, the tamping assembly is provided with a tamping head that can move up and down relative to the funnel, and the grinding assembly is provided with a coffee outlet channel, characterized in that: The support is also provided with a sleeve that can accommodate the mortar head. The lower end of the sleeve is connected to the funnel supported on the support. One side of the sleeve is provided with a powder feeding channel that is connected to the powder outlet channel of the grinding assembly. The powder feeding channel is provided with an elastically deformable powder guide. One end of the powder guide is connected to the powder feeding channel, and the other end is close to the center of the funnel and located above the funnel.

2. A coffee grinder according to claim 1, characterized in that: The powder guide is made of silicone material.

3. A coffee grinder according to claim 1, characterized in that: The powder guide component has several inverted buckles, and the powder feeding channel has corresponding buckle holes that can be engaged with the inverted buckles.

4. A coffee grinder according to claim 1, characterized in that: The powder pressing head is provided with a baffle that extends upward and can contact the other end of the powder guiding component.

5. A coffee grinder according to claim 1, characterized in that: The powder feeding channel is provided with a groove below it to accommodate the powder guiding component.

6. A coffee grinder according to claim 1, characterized in that: The support and sleeve of the bracket are integrally injection molded.

7. A coffee grinder according to claim 1, characterized in that: The sleeve is transparent or semi-transparent.

8. A coffee grinder according to claim 1, characterized in that: The grinding assembly also includes a first base, a first motor mounted on the first base, a moving grinding wheel and a fixed grinding wheel, the shaft of the first motor being connected to the moving grinding wheel, and a powder outlet channel being located on one side of the first base and connected to the powder outlet of the first base.

9. A coffee grinder according to claim 1, characterized in that: The powder pressing assembly also includes a second base, a second motor mounted on the second base, a lifting frame with a rack and pinion, and a drive gear pivotally connected to the second base. The shaft of the second motor is connected to the drive gear, the drive gear meshes with the rack of the lifting frame, and the powder pressing head is connected to the lower end of the lifting frame.

10. A coffee grinder according to claim 9, characterized in that: The powder pressing assembly also includes a driven gear pivotally connected to the second base. The lifting frame has two racks, with the driving gear meshing with one of the racks, and the driven gear meshing with the driving gear on one side and with the other rack on the other side.

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