Grinding device and coffee maker

Abstract

The application provides a grinding device and a coffee machine. The grinding device comprises a housing, a driving assembly, a cutter assembly and a discharging assembly. The housing is formed with a first chamber and a second chamber in communication. The driving assembly comprises a driving member and a transmission shaft. The driving member is located in the first chamber, and the transmission shaft is arranged on the driving member and extends into the second chamber from the first chamber. The cutter assembly comprises an inner cutter disc and an outer cutter disc. The outer cutter disc is arranged at a discharging end of the first chamber, and the inner cutter disc is arranged on the transmission shaft and located in the outer cutter disc. The discharging assembly comprises a first discharging cup and a stirring member. The first discharging cup is arranged at a discharging end of the second chamber, and the first discharging cup is formed with a third chamber. The first discharging cup is provided with a discharging channel in communication with the third chamber. The stirring member is arranged on the transmission shaft and located in the third chamber. The transmission shaft is used for rotating the inner cutter disc and the stirring member under the action of the driving member. The application reduces the flying powder during discharging of the grinding device.

Description

Technical Field

[0001] This application relates to the field of grinding equipment technology, specifically to a grinding device and a coffee machine. Background Technology

[0002] A coffee grinder is a small appliance specifically designed for grinding coffee beans. It uses blades or conical grinding discs to pulverize coffee beans into particles of varying coarseness to suit different brewing methods such as pour-over and espresso. Coffee machines with a built-in grinder integrate the grinding and brewing systems, allowing you to complete the entire process from bean to cup with just one touch, making them ideal for coffee lovers who value convenience.

[0003] Current coffee grinding equipment uses high-speed rotary cutting to pulverize dry coffee beans into coffee powder. However, during the grinding stage, the dry coffee beans generate static electricity during the cracking and friction process. Because the powder particles are charged with the same charge, they repel each other, causing the powder to fly outside the coffee powder container, which is not easy to clean and results in a poor user experience. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this application provides a grinding device and a coffee machine.

[0005] The specific technical solution is as follows:

[0006] A grinding apparatus, comprising:

[0007] A housing having a first chamber and a second chamber that are in communication with each other;

[0008] A drive assembly, comprising a drive member and a transmission shaft, wherein the drive member is located in the first chamber, and the transmission shaft is disposed on the drive member and extends from the first chamber into the second chamber;

[0009] A cutting tool assembly, comprising an inner cutting disc and an outer cutting disc located in a second chamber, wherein the outer cutting disc is disposed at the discharge end of the first chamber, and the inner cutting disc is disposed on the drive shaft and located inside the outer cutting disc;

[0010] The discharge assembly includes a first discharge cup and a feeding device. The first discharge cup is disposed at the discharge end of the second chamber and forms a third chamber. The first discharge cup is provided with a discharge channel communicating with the third chamber. The feeding device is disposed on the drive shaft and located in the third chamber.

[0011] The drive shaft is used to drive the inner cutter head and the feeder to rotate under the action of the drive component.

[0012] In one embodiment, a first connecting structure is provided between the housing and the first discharge cup, and the housing and the first discharge cup are detachably connected through the first connecting structure.

[0013] Alternatively, the shell and the first discharge cup may be integrally formed.

[0014] In one embodiment, a detection element is provided on the housing, the detection element is disposed adjacent to the first connecting structure, and is used to detect the state of the first connecting structure and output a state signal; the driving element is used to drive the transmission shaft to rotate the inner cutter head and the feeding element based on the state signal.

[0015] In one embodiment, the first connection structure includes a magnetic connection structure, which includes a first magnetic attractor and a second magnetic attractor. The first magnetic attractor is disposed on the bottom wall of the second chamber, and the second magnetic attractor is disposed at the feed end of the first discharge cup. The first magnetic attractor and the second magnetic attractor are magnetically connected.

[0016] In one embodiment, the drive shaft has a main body section and a drive section, the inner cutter disc is sleeved on the main body section, a connecting member is sleeved on the drive section, the inner cutter disc is connected to the connecting member, and the drive section drives the inner cutter disc to rotate through the connecting member;

[0017] The cross-section of the transmission section is non-circular.

[0018] In one embodiment, the connector protrudes outward to form multiple protrusions, which are arranged sequentially around the outer periphery of the transmission section. The inner cutter disc has multiple grooves, and the protrusions are inserted into the grooves.

[0019] In one embodiment, the feeder includes a core portion and one or more feed tongues, the feed tongues being disposed on the outer periphery of the core portion, the core portion being provided with fasteners, and the core portion being fixed to the end of the transmission section by the fasteners;

[0020] Alternatively, the transmission section is provided with a mounting hole, and the end of the transmission section is provided with a mounting groove; the feeding component includes multiple actuating sections, which are arranged sequentially to form a frame-shaped or frame-like feeding component, wherein two of the multiple actuating sections pass through the mounting hole and the mounting groove respectively.

[0021] In one embodiment, the discharge assembly further includes a second discharge cup, and a third connecting structure is provided between the second discharge cup and the first discharge cup, wherein the second discharge cup and the first discharge cup are detachably connected through the third connecting structure; wherein the inner diameter of the inlet end of the second discharge cup is larger than the inner diameter of the outlet end of the second discharge cup;

[0022] And / or, the discharge channel includes a first discharge channel and a plurality of second discharge channels, the first discharge channel being located at the axis of the first discharge cup, and the plurality of second discharge channels being evenly spaced and arranged in a ring array along the outer periphery of the first discharge channel.

[0023] In one embodiment, the detection element includes a Hall element or a micro switch.

[0024] A coffee machine includes a base, a brewing device disposed on the base, and the grinding device described above.

[0025] This application has at least the following beneficial effects:

[0026] This application provides a grinding apparatus, comprising: a housing having a first chamber and a second chamber communicating with each other; a drive assembly including a drive member and a transmission shaft, the drive member being located in the first chamber and the transmission shaft being disposed on the drive member and extending from the first chamber into the second chamber; a cutter assembly including an inner cutter disc and an outer cutter disc located in the second chamber, wherein the outer cutter disc is disposed at the discharge end of the first chamber and the inner cutter disc is disposed on the transmission shaft; and a discharge assembly including a first discharge cup and a feeding member, the first discharge cup being disposed at the discharge end of the second chamber and forming a third chamber, the first discharge cup having a discharge channel communicating with the third chamber, and the feeding member being disposed on the transmission shaft and located within the third chamber; wherein the transmission shaft is used to drive the inner cutter disc and the feeding member to rotate under the action of the drive member.

[0027] This application uses a first discharge cup as a temporary collection chamber for the ground material. The closed structure of the first discharge cup temporarily retains the powder, preventing it from splashing everywhere during the grinding process. It also avoids direct discharge of powder causing airflow disturbances and resulting in flying powder. Furthermore, after the powder accumulates in the first discharge cup, rotating the feed mechanism neutralizes the charge in the powder before discharging it through the discharge channel, reducing flying powder caused by static electricity. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 The structural explosion of the grinding apparatus provided in this embodiment Figure 1 ;

[0030] Figure 2The structural explosion of the grinding apparatus provided in this embodiment Figure 2 ;

[0031] Figure 3 This is a cross-sectional schematic diagram of the grinding apparatus provided in this embodiment;

[0032] Figure 4 for Figure 3 A magnified view of a portion of region A in the middle;

[0033] Figure 5 This is a schematic diagram of the drive shaft provided in this embodiment. Figure 1 ;

[0034] Figure 6 This is a schematic diagram of the internal cutter head provided in this embodiment;

[0035] Figure 7 This is a schematic diagram of the connector provided in this embodiment;

[0036] Figure 8 This is a cross-sectional schematic diagram of the stop provided in this embodiment;

[0037] Figure 9 This is a schematic diagram of the material feeding component provided in this embodiment;

[0038] Figure 10 This is a schematic diagram of the structure of the first discharge cup provided in this embodiment;

[0039] Figure 11 This is a schematic diagram of the grinding apparatus provided in this embodiment. Figure 1 ;

[0040] Figure 12 for Figure 11 A magnified view of a portion of region B in the middle;

[0041] Figure 13 This is a schematic diagram of the drive shaft provided in this embodiment. Figure 2 ;

[0042] Figure 14 This is a schematic diagram of the coffee machine provided in this embodiment;

[0043] Figure label:

[0044] 1-Housing; 2-Drive assembly; 3-Cutter assembly; 4-Discharge assembly; 11-First chamber; 12-Second chamber; 13-First magnetic suction element; 14-Detection element; 21-Drive element; 22-Transmission shaft; 23-Connector; 24-Stop element; 31-Inner cutter head; 32-Outer cutter head; 41-First discharge cup; 42-Pushing element; 43-Second discharge cup; 221-Main body section; 222-Transmission section; 2 31-Protrusion; 232-Through hole; 241-Mounting channel; 311-Groove; 411-Discharge channel; 412-Second magnetic suction component; 413-Support arm; 414-Slot; 421-Shaft; 422-Tongue; 423-Fastener; 424-Actuating section; 431-Claw; 2221-Mounting hole; 2222-Mounting groove; 4111-First discharge channel; 4112-Second discharge channel;

[0045] 10 - Base; 20 - Brewing device. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0047] In the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0048] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0049] like Figures 1-14 As shown, this embodiment provides a grinding apparatus, including:

[0050] The housing 1 has a first chamber 11 and a second chamber 12 that are connected to each other.

[0051] Drive assembly 2 includes a drive element 21 and a transmission shaft 22. The drive element 21 is located in the first chamber 11, and the transmission shaft 22 is disposed on the drive element 21 and extends from the first chamber 11 into the second chamber 12.

[0052] The tool assembly 3 includes an inner cutter disc 31 and an outer cutter disc 32 located in the second chamber 12. The outer cutter disc 32 is disposed at the discharge end of the first chamber 11, and the inner cutter disc 31 is disposed on the drive shaft 22 and located inside the outer cutter disc 32.

[0053] The discharge assembly 4 includes a first discharge cup 41 and a feeding component 42. The first discharge cup 41 is disposed at the discharge end of the second chamber 12. The first discharge cup 41 forms a third chamber. The first discharge cup 41 is provided with a discharge channel 411 communicating with the third chamber. The feeding component 42 is disposed on the drive shaft 22 and located in the third chamber.

[0054] The drive shaft 22 is used to drive the inner cutter disc 31 to rotate relative to the outer cutter disc 32 under the action of the drive member 21, and to drive the feeding member 42 to rotate relative to the first discharge cup 41.

[0055] In this embodiment, a first discharge cup 41 is set up as a temporary collection chamber for the ground material. The closed structure of the first discharge cup 41 temporarily retains the powder, preventing the material from splashing everywhere during the grinding process. At the same time, it can avoid the powder flying caused by airflow disturbance due to direct discharge of powder. At the same time, after the powder accumulates in the first discharge cup 41, the rotating feeder 42 neutralizes the charge in the powder and then discharges the powder through the discharge channel 411, reducing the flying powder caused by static electricity.

[0056] In one embodiment, the housing 1 and the first discharge cup 41 are integrally formed. Specifically, the bottom end of the housing 1 extends outward to form the first discharge cup 41. This embodiment reduces the assembly steps of the grinding device.

[0057] like Figures 1-4 As shown, in one embodiment, a first connecting structure is provided between the housing 1 and the first discharge cup 41, and the housing 1 and the first discharge cup 41 are detachably connected through the first connecting structure. This embodiment separates the housing 1 and the first discharge cup 41 and makes them detachably connected, which reduces the manufacturing difficulty of the housing 1 and the first discharge cup 41 and facilitates production.

[0058] like Figures 1-4As shown, in one embodiment, the first connecting structure includes a magnetic connecting structure, which includes a first magnetic suction member 13 and a second magnetic suction member 412. The first magnetic suction member 13 is disposed on the bottom wall of the second chamber 12. The feeding end of the first discharge cup 41 extends away from the axis to form two support arms 413, and the two support arms 413 are symmetrically arranged. The second magnetic suction member 412 is disposed on the support arms 413. The first magnetic suction member 13 and the second magnetic suction member 412 are magnetically connected so that the first discharge cup 41 is detachably disposed on the housing 1 and adjacent to the second chamber 12. This embodiment simplifies the installation steps between the first discharge cup 41 and the housing 1 and reduces the assembly difficulty.

[0059] Specifically, both the first magnetic attractor 13 and the second magnetic attractor 412 are magnetic; or, one of the first magnetic attractor 13 and the second magnetic attractor 412 is a magnetic and the other is a magnetically conductive.

[0060] In one embodiment, the first connecting structure includes a magnetic connecting structure, comprising a first magnetic suction member 13 and a second magnetic suction member 412. The first magnetic suction member 13 is disposed on the bottom wall of the second chamber 12. The feeding end of the first discharge cup 41 extends away from the axis to form two support arms 413, which are symmetrically arranged. The second magnetic suction member 412 is disposed on the support arms 413. The first magnetic suction member 13 and the second magnetic suction member 412 are magnetically connected so that the first discharge cup 41 is detachably mounted on the housing 1 and adjacent to the second chamber 12. This embodiment simplifies the installation steps between the first discharge cup 41 and the housing 1, reducing assembly difficulty.

[0061] like Figures 1-2 As shown, in one embodiment, a detection element 14 is provided on the housing 1. The detection element 14 is disposed adjacent to the first connecting structure and is used to detect the state of the first connecting structure and output a state signal; the driving element 21 is used to drive the transmission shaft 22 to drive the inner cutter head 31 and the feeding element 42 to rotate based on the state signal.

[0062] Specifically, the proximity of the detection component 14 to the first connecting structure means that the distance between the detection component 14 and the first connecting structure is between 0 and 5 cm.

[0063] Specifically, when the first magnetic attractor 13 and the second magnetic attractor 412 are magnetically connected, the trigger detection element 14 outputs a status signal to the controller of the grinding device, and the controller of the grinding device outputs a drive signal to the drive element 21 after receiving the status signal.

[0064] In this embodiment, the connection status between the first discharge cup 41 and the housing 1 is detected by the detection component 14. This ensures that the inner cutter disc 31 and the feeding component 42 rotate when the first discharge cup 41 is installed in place, thus preventing the feeding component 42 from rotating when the first discharge cup 41 is not installed and improving the safety of the grinding device.

[0065] In one embodiment, the detection element 14 includes a Hall element or a micro switch.

[0066] like Figures 3-5 , Figure 7 As shown, in one embodiment, the drive shaft 22 has a main body section 221 and a drive section 222. The inner cutter disc 31 is sleeved on the main body section 221, and a connecting member 23 is sleeved on the drive section 222. The inner cutter disc 31 is connected to the connecting member 23, and the drive section 222 drives the inner cutter disc 31 to rotate through the connecting member 23.

[0067] The transmission section 222 has a non-circular cross-section, and the connecting member 23 has a corresponding through hole 232 with the same cross-sectional shape.

[0068] In one embodiment, the cross-section of the transmission section 222 is D-shaped, hexagonal, elliptical, or racetrack-shaped.

[0069] This embodiment directly transmits torque through the shape matching of the transmission section 222 and the connecting member 23, avoiding the strength weakening phenomenon caused by stress concentration in the keyway in traditional keyed or splined connections. Furthermore, the non-circular cross-section of the transmission section 222 fixes the relative position of the connecting member 23, reducing dynamic imbalance.

[0070] Furthermore, in this embodiment, power is transmitted to the inner cutter disc 31 through the connector 23. The connector 23 can absorb the impact and vibration during the transmission process, play a buffering role, reduce the force fluctuation of the inner cutter disc 31 (such as elastic coupling, friction plate), and extend the life of the grinding device.

[0071] like Figures 6-7 As shown, in one embodiment, the connector 23 protrudes outward to form a plurality of protrusions 231, the plurality of protrusions 231 are arranged sequentially around the outer periphery of the transmission section 222, and the inner blade disc 31 is provided with a plurality of grooves 311, the protrusions 231 and the grooves 311 are inserted and connected.

[0072] In this embodiment, the transmission connection can be completed by directly inserting the protrusion 231 into the groove 311. Disassembly only requires axial pulling, making the assembly and disassembly of the connector 23 and the inner cutter disc 31 easy and significantly reducing downtime for maintenance. Furthermore, in this embodiment, there are multiple protrusions 231 and grooves 311, which increases the contact area between the connector 23 and the inner cutter disc 31, avoids stress concentration, and enhances the load-bearing capacity.

[0073] like Figures 1-4As shown, in one embodiment, a stop 24 is provided on the transmission section 222. The stop 24 is located on the side of the connector 23 away from the inner cutter head 31. A fourth connecting structure is provided between the stop 24 and the transmission section 222, and the stop 24 and the transmission section 222 are detachably connected through the fourth connecting structure. In this embodiment, the stop 24 is provided to fix the connector 23 to the transmission section 222.

[0074] In one embodiment, the fourth connection structure includes external threads and internal threads. The stop member 24 is provided with an installation channel 241, and the installation channel 241 is provided with an internal thread. The cross-section of the transmission section 222 is racetrack-shaped, and the arc-shaped outer wall of the transmission section 222 is provided with an external thread. The internal thread and the external thread are connected to realize the detachable connection between the stop member 24 and the transmission section 222.

[0075] like Figures 3-4 , Figure 9 As shown, in one embodiment, the feeder 42 includes a core portion 421 and one or more feed tongues 422. The feed tongues 422 are disposed on the outer periphery of the core portion 421. The core portion 421 is provided with fasteners 423 and the core portion 421 is fixed to the end of the transmission section 222 by the fasteners 423.

[0076] Specifically, there are multiple tongues 422, which are arranged sequentially on the outer periphery of the axial part 421.

[0077] In one embodiment, after the shaft portion 421 is plugged into the stop member 24, the fastener 423 passes through the shaft portion 421 and the stop member 24 and is fixed to the end of the transmission section 222.

[0078] like Figures 11-13 As shown, in another embodiment, the transmission section 222 is provided with a mounting hole 2221, and the end of the transmission section 222 is provided with a mounting groove 2222; the feeding member 42 includes a plurality of actuating sections 424, which are arranged sequentially to form a frame-shaped or frame-like feeding member 42, wherein two of the plurality of actuating sections 424 pass through the mounting hole 2221 and the mounting groove 2222 respectively.

[0079] In this embodiment, the mounting holes 2221 and mounting grooves 2222 provide a mounting position for the material feeder 42, and at the same time provide support for the material feeder 42 to increase its strength and extend its service life.

[0080] Specifically, the material feeder 42 is formed by bending the strip material feeder 42 multiple times to form a frame-shaped or frame-like material feeder 42, and a feeding section 424 is formed between two adjacent bending points and between the end of the material feeder 42 and the nearest bending point.

[0081] like Figures 3-4As shown, in one embodiment, the discharge assembly 4 further includes a second discharge cup 43, and a third connecting structure is provided between the second discharge cup 43 and the first discharge cup 41. The second discharge cup 43 and the first discharge cup 41 are detachably connected through the third connecting structure; wherein, the inner diameter of the feed end of the second discharge cup 43 is larger than the inner diameter of the discharge end of the second discharge cup 43.

[0082] In one embodiment, the third connection structure includes a claw 431 and a slot 414. The second discharge cup 43 is provided with a claw 431, and the first discharge cup 41 is provided with a slot 414. The claw 431 and the slot 414 are connected by a snap-fit.

[0083] like Figure 10 As shown, in one embodiment, the discharge channel 411 includes a first discharge channel 4111 and a plurality of second discharge channels 4112. The first discharge channel 4111 is located at the axis of the first discharge cup 41, and the plurality of second discharge channels 4112 are evenly spaced and arranged in a ring array along the outer periphery of the first discharge channel 4111.

[0084] In this embodiment, a first discharge channel 4111 and multiple second discharge channels 4112 are set up to provide multiple discharge channels for powder, avoiding powder accumulation after single-point powder drop; at the same time, the multiple second discharge channels 4112 are evenly spaced, so that the powder is output from the third chamber through the multiple evenly distributed second discharge channels 4112, achieving uniform powder drop.

[0085] like Figures 1-14 As shown, this embodiment also provides a coffee machine, including a base 10, a brewing device 20 disposed on the base 10, and a grinding device as described in any of the above embodiments.

[0086] Note that the above description is merely a preferred embodiment and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of this application, and the scope of this application is determined by the scope of the appended claims.

[0087] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A grinding apparatus, characterized in that, include: A housing having a first chamber and a second chamber that are in communication with each other; A drive assembly, comprising a drive member and a transmission shaft, wherein the drive member is located in the first chamber, and the transmission shaft is disposed on the drive member and extends from the first chamber into the second chamber; A cutting tool assembly, comprising an inner cutting disc and an outer cutting disc located in a second chamber, wherein the outer cutting disc is disposed at the discharge end of the first chamber, and the inner cutting disc is disposed on the drive shaft and located inside the outer cutting disc; The discharge assembly includes a first discharge cup and a feeding device. The first discharge cup is disposed at the discharge end of the second chamber and forms a third chamber. The first discharge cup is provided with a discharge channel communicating with the third chamber. The feeding device is disposed on the drive shaft and located in the third chamber. The drive shaft is used to drive the inner cutter head and the feeder to rotate under the action of the drive component.

2. The grinding apparatus according to claim 1, characterized in that, A first connecting structure is provided between the housing and the first discharge cup, and the housing and the first discharge cup are detachably connected through the first connecting structure. Alternatively, the shell and the first discharge cup may be integrally formed.

3. The grinding apparatus according to claim 2, characterized in that, A detection element is provided on the housing, and the detection element is disposed adjacent to the first connecting structure for detecting the state of the first connecting structure and outputting a state signal; the driving element is used to drive the transmission shaft to rotate the inner cutter head and the feeding element based on the state signal.

4. The grinding apparatus according to claim 2, characterized in that, The first connection structure includes a magnetic connection structure, which includes a first magnetic attractor and a second magnetic attractor. The first magnetic attractor is disposed on the bottom wall of the second chamber, and the second magnetic attractor is disposed at the feed end of the first discharge cup. The first magnetic attractor and the second magnetic attractor are magnetically connected.

5. The grinding apparatus according to claim 1, characterized in that, The drive shaft has a main body section and a drive section. The inner cutter disc is sleeved on the main body section, and a connecting member is sleeved on the drive section. The inner cutter disc is connected to the connecting member, and the drive section drives the inner cutter disc to rotate through the connecting member. The cross-section of the transmission section is non-circular.

6. The grinding apparatus according to claim 5, characterized in that, The connector protrudes outward to form multiple protrusions, which are arranged sequentially around the outer periphery of the transmission section. The inner blade disc has multiple grooves, and the protrusions are inserted into the grooves.

7. The grinding apparatus according to claim 5, characterized in that, The feeding component includes a core portion and one or more tongues. The tongues are disposed on the outer periphery of the core portion. The core portion is equipped with fasteners, and the core portion is fixed to the end of the transmission section by the fasteners. Alternatively, the transmission section is provided with a mounting hole, and the end of the transmission section is provided with a mounting groove; the feeding component includes multiple actuating sections, which are arranged sequentially to form a frame-shaped or frame-like feeding component, wherein two of the multiple actuating sections pass through the mounting hole and the mounting groove respectively.

8. The grinding apparatus according to claim 1, characterized in that, The discharge assembly further includes a second discharge cup, and a third connecting structure is provided between the second discharge cup and the first discharge cup. The second discharge cup and the first discharge cup are detachably connected through the third connecting structure. The inner diameter of the inlet end of the second discharge cup is larger than the inner diameter of the outlet end of the second discharge cup. And / or, the discharge channel includes a first discharge channel and a plurality of second discharge channels, the first discharge channel being located at the axis of the first discharge cup, and the plurality of second discharge channels being evenly spaced and arranged in a ring array along the outer periphery of the first discharge channel.

9. The grinding apparatus according to claim 2, characterized in that, The detection device includes a Hall element or a micro switch.

10. A coffee machine, characterized in that, It includes a base, a brewing device disposed on the base, and a grinding device as described in any one of claims 1-9.

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