Coffee machine with grinding device

Abstract

The utility model relates to a coffee machine with a grinding device, which comprises a machine body and an extraction cup assembly which can be inserted into an extraction mounting position arranged on one side of the front part of the machine body, and further comprises the grinding device and a coffee bean bin, the coffee bean bin is magnetically attracted and fixed in a sunken groove formed in the top of the machine body around the mounting cavity and is in butt joint with the grinding device, and a coffee powder collecting position in butt joint with a coffee powder guide-out opening of the grinding device is further arranged on the other side of the front portion of the machine body so that the extraction cup assembly can be inserted and receive powder. According to the coffee machine with the grinding device, multiple functions of coffee powder grinding and coffee liquid extraction are achieved through compact and small structural arrangement, and the use requirements of different users are met.

Description

Technical Field

[0001] The present application relates to a coffee machine, and more particularly to a coffee machine with a built-in grinding device. Background Art

[0002] With the improvement of people's living standards, coffee is becoming more and more popular among the general public, and drinking coffee has become a fashion in people's lives. Especially for coffee lovers, a cup of fragrant and delicious coffee will greatly improve their work efficiency. Traditional coffee machines use high-temperature and high-pressure hot water to extract coffee powder in a coffee powder box or coffee capsule to obtain coffee liquid. In order to meet the higher-level needs of different users, coffee machines with multiple functions and compact size have been designed. For example, the utility model patent with announcement number CN219846118U discloses a coffee machine that takes into account multiple milk emulsification methods. Through the first connecting seat provided on the main body of the coffee machine, the milk emulsification device can be plugged in to inject automatically beaten milk foam into the cup containing the coffee liquid, and the milk emulsification device can also be removed and the steam rod taken out from the storage compartment outside the main body of the coffee machine can be plugged in, and the steam rod is extended into the container containing milk to prepare milk foam. This type of coffee machine provides users with the function of making milk foam in various ways. However, for users who like to grind coffee beans themselves to extract coffee, they also need to equip themselves with a coffee bean grinder, which increases the complexity of use. Existing coffee machines with built-in grinding devices are often bulky and inconvenient for ordinary users to use in daily life. Utility Model Content

[0003] The technical problem to be solved by the present application is to provide a coffee machine with a built-in grinding device that is compact and has multiple functions such as grinding beans and extracting. In view of the above-mentioned defects of the prior art,

[0004] The technical solution adopted by the present application to solve its technical problems is: a coffee machine with a built-in grinding device is proposed, comprising a machine body and an extraction cup assembly that can be inserted into an extraction installation position set on one side of the front of the machine body, and also comprising a grinding device and a coffee bean bin. The grinding device is installed in a mounting cavity opened downward from the top of the machine body, and the coffee bean bin is magnetically fixed in a recessed groove formed around the mounting cavity on the top of the machine body and docked with the grinding device. A coffee powder collecting position docking with the coffee powder outlet of the grinding device is also provided on the other side of the front of the machine body for the extraction cup assembly to be inserted and receive powder.

[0005] According to an embodiment of a coffee machine with a built-in grinding device described in the present application, the grinding device includes a shell, a motor arranged at the lower end of the shell, a rotating shaft coaxially arranged in the shell, a powder paddle, a grinder, a grinding disc and a coarseness adjuster, as well as a funnel and a knob arranged at the upper end of the shell, wherein the rotating shaft is driven to rotate by the motor, the grinder is fixed to the rotating shaft, the grinding disc is sleeved on the outer circumference of the grinder, the grinder and the grinding disc are respectively provided with matching inner and outer grinding parts, the powder paddle is fixed on the rotating shaft below the grinder, the coarseness adjuster is sleeved on the outer circumference of the grinding disc and is threadedly connected to the grinding disc, the lower end of the funnel is docked with the grinding disc and fixedly connected to the coarseness adjuster, the middle part of the upper end of the funnel is fixedly connected to the knob, the shell is also provided with a powder guide tube extending obliquely downward and docking with the coffee powder outlet formed by the gap between the inner grinding part of the grinder and the outer grinding part of the grinding disc, and the end of the powder guide tube is provided with a coffee powder outlet.

[0006] According to an embodiment of the coffee machine with a built-in grinding device described in the present application, the lower end of the funnel is detachably rotatably engaged with the coarseness adjuster.

[0007] According to one embodiment of the coffee machine with a built-in grinding device described in the present application, a reversible handle is provided in the grinding disc.

[0008] According to one embodiment of the coffee machine with a built-in grinding device described in the present application, a micro switch cooperating with the funnel is further provided at the upper end of the shell. When the funnel is removed, the micro switch opens to control the motor to stop working.

[0009] According to one embodiment of the coffee machine with a built-in grinding device described in the present application, a magnet is provided in the coffee bean bin, and a proximity switch that can be driven to close by the magnet is provided in the machine body below the recessed groove corresponding to the magnet. When the coffee bean bin is removed, the proximity switch opens to control the motor of the grinding device to stop working.

[0010] According to one embodiment of the coffee machine with a built-in grinding device described in the present application, a steam connection seat is provided on the side of the machine body near the extraction installation position, and the coffee machine also includes a milk emulsification device plugged into the steam connection seat.

[0011] According to an embodiment of the coffee machine with a built-in grinding device described in the present application, the coffee machine further comprises a steam rod plugged into the steam connection seat.

[0012] According to one embodiment of the coffee machine with a built-in grinding device described in the present application, a liquid receiving platform is provided below the extraction installation position and the coffee powder collection position at the front of the machine body.

[0013] The coffee machine with its own grinding device that implements the present application has the following beneficial effects: the coffee machine with its own grinding device according to the embodiment of the present application is provided with an extraction installation position on one side of the front of the machine body, a installation cavity is opened downwardly on the top of the machine body to install the grinding device and a recessed groove is formed around the installation cavity to magnetically fix the coffee bean bin, and a coffee powder collecting position connected to the coffee powder outlet of the grinding device is provided on the other side of the front of the machine body. The extraction cup assembly can be inserted into the coffee powder collecting position to receive the ground coffee powder, then extracted from the coffee powder collecting position and inserted into the extraction installation position to extract the coffee liquid. Therefore, the coffee machine with its own grinding device according to the embodiment of the present application realizes multiple functions of coffee powder grinding and coffee liquid extraction through a compact and compact structural arrangement. The steam connection seat is provided on the side of the machine body, and a milk emulsification device or a steam rod can be further plugged in to realize the milk frothing function in various ways to meet the usage needs of different users. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present application will be further described below with reference to the accompanying drawings and embodiments, in which:

[0015] Figure 1 This is a schematic structural diagram of a coffee machine with a built-in grinding device according to an embodiment of the present application;

[0016] Figure 2 yes Figure 1 The schematic diagram of the structure of the coffee machine with built-in grinding device after the coffee bean bin is removed;

[0017] Figure 3 is a structural cross-sectional view of a grinding device in one embodiment of the present application;

[0018] Figure 4 is a schematic diagram of the exploded structure of a grinding device in one embodiment of the present application;

[0019] Figure 5 yes Figure 4 A structural schematic diagram of another state of the grinding disc shown in ;

[0020] Figure 6 This is a schematic diagram of the structure in which the coffee bean bin is installed on the machine body in one embodiment of the present application;

[0021] Figure 7 It is a structural schematic diagram of a coffee machine with a built-in grinding device according to another embodiment of the present application.

[0022] Description of the drawings: 100-coffee machine; 10-machine body; 11-liquid receiving platform; 12-extraction installation position; 13-installation cavity; 14-recessed groove; 15-coffee powder collection position; 16-steam connection seat; 17-proximity switch; 20-extraction cup assembly; 21-coffee liquid outlet; 30-grinding device; 31-housing; 321-motor; 322-rotating shaft; 33-grinding knife; 331-external grinding part; 34-grinding disc; 341-inner grinding part; 342-handle; 35-coffee powder outlet; 361-funnel; 362-knob; 363-coarseness adjuster; 37-powder dispenser; 38-powder guide tube; 381-coffee powder outlet; 40-coffee bean hopper; 41-magnet; 50-milk emulsification device; 51-milk foam outlet pipe; 60-steam rod; 70-cup. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely intended to explain this application and are not intended to limit this application. Furthermore, the embodiments and features of the embodiments in this application may be combined with each other unless there is a conflict.

[0024] See also Figure 1 and Figure 2 As shown, a coffee machine 100 with a built-in grinding device according to one embodiment of the present application is mainly composed of a machine body 10, an extraction cup assembly 20, a grinding device 30, a coffee bean hopper 40, and a milk emulsifying device 50. An extraction installation position 11 is set on one side of the front of the machine body 10, and a coffee powder collection position 15 is set on the other side. A mounting cavity 13 is formed from the top downward, and the grinding device 30 is installed in the mounting cavity 13 so that the coffee powder outlet 381 (see Figure 3 The coffee bean hopper 40 is magnetically secured within a recessed groove 14 formed around the mounting cavity 13 at the top of the machine 10, docking with the grinding device 30 to provide ground coffee beans. The extraction cup assembly 20 has a plug-in structure that mates with the extraction mounting position 11 and the coffee powder collection position 15. It can be inserted into the coffee powder collection position 15 to receive coffee grounds from the coffee powder outlet 381 of the grinding device 30. After receiving the coffee grounds, the coffee grounds are drawn from the coffee powder collection position 15 and then inserted into the extraction mounting position 11. This allows the extraction system within the machine 10 to extract the coffee liquid. The resulting coffee liquid flows out of the coffee liquid outlet 21 provided at the bottom of the extraction cup assembly 20 and into the cup 70 placed below. A liquid receiving platform 11 can also be provided at the front of the machine 10, below the extraction mounting position 11 and the coffee powder collection position 15, for placing the cup 70 and collecting any coffee liquid and coffee grounds that may fall, keeping the countertop clean. The body 10 is provided with a steam connection seat 16 on the side near the extraction installation position 12 (see Figure 7As shown in FIG2 , the milk emulsifying device 50 is connected to the steam connection base 16 and can be connected to the steam of the extraction system in the body 10 to automatically emulsify the milk. The formed milk foam flows into the cup 70 containing the coffee liquid through the milk foam outlet pipe 51 extending obliquely from the front of the milk emulsifying device 50 and facing the bottom of the coffee liquid outlet 21 (see FIG2 ). Figure 1 According to different embodiments of the present application, see Figure 7 As shown, the coffee machine 100 can remove the milk emulsifying device 50 and directly connect the steam rod 60 through the steam connection seat 16, and extend the steam rod 60 into the cup filled with milk to prepare milk foam, thereby meeting the different usage needs of various users.

[0025] The coffee machine 100 with a built-in grinding device according to the above-described embodiment of the present application achieves multiple functions, including coffee powder grinding, coffee liquid extraction, and milk emulsification, through a compact and compact structural arrangement. Furthermore, the extraction cup assembly 20 not only receives ground coffee from the grinding device 30 from the coffee powder collection area 15 of the machine body 10 for extraction, but is also compatible with various coffee capsules. The specific implementation of this is disclosed in Utility Model Patent Publication No. CN216628233U and will not be described in detail in this application. This coffee machine 100 can accommodate various milk emulsification methods by switching between the milk emulsification device 50 and the steam wand 60. The specific implementation of this is disclosed in Utility Model Patent Publication No. CN219846118U and will not be described in detail in this application.

[0026] As mentioned above, the grinding device 30 is installed in the installation cavity 13 opened downward from the top of the body 10, and the coffee bean hopper 40 is magnetically fixed in the recessed groove 14 formed around the installation cavity 13 on the top of the body 10 and docked with the grinding device 30. Figure 2 As shown, the coffee bean bin 40 is removed from the machine body 10 to expose the grinding device 30 for easy adjustment of the grinding coarseness and cleaning of the inside of the grinding device 30. Figure 3 As shown, the grinding device 30 mainly consists of a housing 31, a motor 321, a rotating shaft 322, a grinding knife 33, a grinding disc 34, a funnel 361, a knob 362, a coarseness adjuster 363, a powder dispenser 37 and a powder guide tube 38. The motor 321 is arranged at the lower end of the housing 31, driving the rotating shaft 322 supported vertically in the housing 31 to rotate. The grinding knife 33 is coaxially fixed to the rotating shaft 322, and the grinding disc 34 is coaxially sleeved on the outer periphery of the grinding knife 33. The grinding knife 33 and the grinding disc 34 are respectively provided with a matching conical inner grinding portion 331 and outer grinding portion 341 (see Figure 4(as shown), the grinder 33 is driven by the motor 321 to rotate relative to the grinding disc 34, grinding the coffee beans in the inner grinding section 331 and the outer grinding section 341. The ground coffee powder falls vertically from the coffee powder outlet 35 formed in the gap between the outer grinding section 341 and the inner grinding section 331. A powder guide tube 38 is provided at the lower portion of the housing 31, extending downward and obliquely, and docking with the coffee powder outlet 35. A powder remover 37 is fixed to the rotating shaft 322 below the grinder 33, rotating with the rotating shaft 322 to sweep all the fallen coffee powder into the powder guide tube 38. The end of the powder guide tube 38 is further provided with a coffee powder outlet 381, which docks with the extraction cup assembly 20 inserted in the coffee powder collection position 15. This straight powder drop design can reduce the amount of coffee powder remaining in the grinding device 30.

[0027] See further Figure 3 As shown, a funnel 361 is provided at the upper end of the shell 31, and the lower end of the funnel 361 is connected to the grinding disc 34, which is used to guide the coffee beans received from the coffee bean bin 40 into the space between the grinding disc 34 and the grinder 33 for grinding. The coarseness adjuster 363 is coaxially sleeved on the outer periphery of the grinding disc 34 and is threadedly connected to the grinding disc 34. The lower end of the funnel 361 is also fixedly connected to the coarseness adjuster 363, and a knob 362 is fixedly connected to the middle part of the upper end of the funnel 361. In this way, by operating the knob 362 to drive the funnel 361 and the coarseness adjuster 363 to rotate together, the grinding disc 34 can be acted on through the threaded connection, so that the grinding disc 34 moves up and down axially relative to the grinder 33, thereby adjusting the size of the gap between the inner grinding part 341 of the grinding disc 34 and the outer grinding part 331 of the grinder 33, thereby achieving the coarseness adjustment of the coffee powder. See also Figure 4 As shown, the lower end of the funnel 361 and the coarseness adjuster 363 can be detachably rotated and snapped into place through a matching snap-on structure. When the funnel 361 and the coarseness adjuster 363 are rotated and snapped into place, the coarseness adjuster 363 can rotate together with the funnel 361 to facilitate the coarseness adjustment of the coffee powder. After turning the knob 362 to a specific position to disengage the funnel 361 from the coarseness adjuster 363, the knob 363 and the funnel 361 can be removed, and then the grinding disc 34 can be taken out for internal cleaning. A reversible handle 342 is provided inside the grinding disc 34, which is stored on the inner periphery of the grinding disc 34. When the grinding disc 34 needs to be taken out, the reversible handle 342 is flipped up (see Figure 5 In addition, a micro switch (not visible in the figure) that cooperates with the funnel 361 can be provided at the position where the funnel 361 is installed on the upper end of the housing 31. When the funnel 361 and the knob 362 are removed together, the micro switch will open, and the motor 321 that controls the grinding device 30 will not work. Figure 6As shown, a magnet 41 is provided at the bottom of the coffee bean bin 40, and a proximity switch 17 is provided in the body 10 at a position corresponding to the magnet 41 below the recessed groove 14. When the coffee bean bin 40 is magnetically fixed in place in the recessed groove 14, the magnet 41 drives the proximity switch 17 to close, and the motor 321 of the grinding device 30 can work. When the coffee bean bin 40 is removed, the proximity switch 17 will be in an open circuit, and the motor 321 that controls the grinding device 30 cannot work. The coffee machine 100 according to the above embodiment of the present application provides double protection for the grinding device 30 through the setting of the proximity switch 17 and the micro switch (not visible in the figure), which effectively avoids safety problems caused by user misoperation.

[0028] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A coffee machine with a built-in grinding device, comprising a machine body and an extraction cup assembly that can be inserted into an extraction installation position provided on one side of the front of the machine body, characterized in that: The machine body also includes a grinding device and a coffee bean hopper. The grinding device is installed in an installation cavity opened downward from the top of the machine body. The coffee bean hopper is magnetically fixed in a recessed groove formed around the installation cavity on the top of the machine body and docked with the grinding device. A coffee powder collection position docking with the coffee powder outlet of the grinding device is also provided on the other side of the front of the machine body for the extraction cup assembly to be inserted and receive powder.

2. The coffee machine with a built-in grinding device according to claim 1, characterized in that: The grinding device includes a shell, a motor arranged at the lower end of the shell, a rotating shaft coaxially arranged in the shell, a powder paddle, a grinder, a grinding disc and a coarseness adjuster, as well as a funnel and a knob arranged at the upper end of the shell, wherein the rotating shaft is driven to rotate by the motor, the grinder is fixed to the rotating shaft, the grinding disc is sleeved on the outer periphery of the grinder, the grinder and the grinding disc are respectively provided with matching inner and outer grinding parts, the powder paddle is fixed on the rotating shaft below the grinder, the coarseness adjuster is sleeved on the outer periphery of the grinding disc and is threadedly connected to the grinding disc, the lower end of the funnel is docked with the grinding disc and fixedly connected to the coarseness adjuster, the middle part of the upper end of the funnel is fixedly connected to the knob, the shell is also provided with a powder guide tube that extends obliquely downward and docks with the coffee powder outlet formed by the gap between the inner grinding part of the grinder and the outer grinding part of the grinding disc, and the end of the powder guide tube is provided with a coffee powder outlet.

3. The coffee machine with a built-in grinding device according to claim 2, characterized in that: The lower end of the funnel is detachably and rotatably engaged with the coarseness adjuster.

4. The coffee machine with a built-in grinding device according to claim 3, characterized in that: A reversible handle is provided inside the grinding disc.

5. The coffee machine with a built-in grinding device according to claim 3, characterized in that: The upper end of the shell is also provided with a micro switch that cooperates with the funnel. When the funnel is removed, the micro switch is opened to control the motor to stop working.

6. The coffee machine with a built-in grinding device according to claim 1 or 5, characterized in that: A magnet is provided in the coffee bean bin, and a proximity switch which can be driven to close by the magnet is provided in the machine body below the recessed groove corresponding to the magnet. When the coffee bean bin is removed, the proximity switch opens to control the motor of the grinding device to stop working.

7. The coffee machine with a built-in grinding device according to claim 1, characterized in that: The machine body is provided with a steam connection seat at a side portion close to the extraction installation position, and the coffee machine further comprises a milk emulsifying device plugged into the steam connection seat.

8. The coffee machine with a built-in grinding device according to claim 7, characterized in that: The coffee machine further comprises a steam rod plugged into the steam connection seat.

9. The coffee machine with a built-in grinding device according to claim 1, characterized in that: A liquid receiving platform is provided below the extraction installation position and the coffee powder collecting position at the front of the machine body.

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