Coffee machine and coffee brewing method

Abstract

The invention relates to a coffee machine and a coffee brewing method, and belongs to the field of coffee brewing. A coffee machine comprises a shell assembly, a brewing cavity and a mounting cavity, the brewing cavity is adjacent to the mounting cavity, and the shell assembly is provided with an exhaust port communicated with the brewing cavity; the brewing assembly is arranged on the shell assembly; the powder supply assembly is arranged on the shell assembly; the heating assembly is arranged on the shell assembly; the liquid outlet assembly is arranged on the shell assembly; and the water path assembly is arranged on the shell assembly. The brewing cavity and the mounting cavity are adjacently arranged by the shell assembly, so that the distance between the powder supply assembly and the brewing assembly is shortened. In the automatic powder filling process, coffee powder can enter the brewing assembly from the powder supply assembly in a smoother mode. Meanwhile, hot air and steam generated in the brewing process are effectively exhausted through the design of the exhaust port.

Description

Technical Field

[0001] This invention relates to the field of coffee brewing, and in particular to coffee machines and coffee brewing methods. Background Technology

[0002] With the continued expansion of the coffee consumption market, coffee machines, as the core equipment for conveniently making freshly ground coffee, have attracted much attention for their performance stability and coffee quality assurance capabilities. However, during the coffee brewing process, water vapor generated by high-temperature extraction and other steps is becoming a significant factor affecting the lifespan of the equipment and the quality of the coffee. Summary of the Invention

[0003] Therefore, it is necessary to provide a coffee machine that addresses the issue of water vapor affecting the lifespan of equipment.

[0004] A coffee machine, comprising:

[0005] The housing assembly includes a brewing chamber and an installation chamber, the brewing chamber being adjacent to the installation chamber, and an exhaust port communicating with the brewing chamber.

[0006] A brewing assembly, the brewing assembly being disposed on the housing assembly and at least partially located within the mounting cavity;

[0007] A powder supply assembly is disposed on the housing assembly and adjacent to the brewing assembly, the powder supply assembly being used to supply coffee powder to the brewing assembly;

[0008] A heating assembly, wherein the heating assembly is disposed on the housing assembly and located within the mounting cavity;

[0009] A liquid dispensing assembly is disposed on the housing assembly and adjacent to the mounting cavity;

[0010] A water circuit assembly is disposed on the outer casing assembly, and the water circuit assembly sequentially connects the heating assembly, the brewing assembly, and the liquid outlet assembly.

[0011] The coffee machine disclosed in this application features an outer casing assembly that places the brewing chamber and the mounting chamber adjacent to each other, shortening the distance between the powder supply component and the brewing component. This results in a shorter and more direct coffee powder transport path, reducing powder loss and residue. During automatic powder filling, coffee powder can enter the brewing component more smoothly from the powder supply component, avoiding blockages or spillage caused by excessively long paths. Simultaneously, the exhaust port design effectively removes heat and steam generated during the brewing process, preventing accumulation inside the casing and keeping the operating area dry and comfortable, thus improving the user experience. The heating component is located within the mounting chamber, adjacent to the brewing component, reducing heat loss during hot water transport. The water circuit assembly connects the heating component, brewing component, and dispensing component sequentially, forming an efficient liquid transport path. This ensures that hot water reaches the brewing component quickly at a suitable temperature, improving extraction efficiency. The adjacent mounting chamber and brewing chamber design allows heat generated by the heating component during operation to be transferred to the brewing chamber. Water vapor and condensate accumulated in the brewing chamber during operation can be heated and discharged through the exhaust port, making the brewing chamber drier and reducing the impact on internal components.

[0012] In one embodiment, the mounting cavity is adjacent to the top of the housing assembly. With heat-generating components such as heating elements located within the mounting cavity near the top, heat can be dissipated more quickly to the outside via natural convection or additional top ventilation holes. The rising nature of hot air allows heat to spontaneously flow upwards and dissipate, preventing heat buildup inside the device and avoiding overheating that could affect component lifespan and performance. Simultaneously, the heat at the top can keep the top warm, allowing brewed coffee to be placed there.

[0013] In one embodiment, the outer casing assembly includes a water tank chamber and a grinding chamber, which are arranged sequentially as follows: water tank chamber, grinding chamber, brewing chamber, and mounting chamber. This sequential arrangement of the water tank chamber, grinding chamber, and brewing chamber forms a continuous coffee-making path. Water is drawn from the water tank chamber by the water supply assembly, heated by the heating assembly in the mounting chamber, and then flows directly to the brewing chamber; simultaneously, the coffee powder supply assembly delivers the coffee powder ground in the grinding chamber into the brewing chamber. This layout reduces the detours involved in the transport of coffee powder and hot water, shortening the brewing time.

[0014] In one embodiment, the liquid outlet assembly is adjacent to the mounting cavity. This proximity shortens the connection distance between the liquid outlet assembly and the heating assembly, water circuit assembly, etc. Since the water circuit assembly connects the heating assembly and the liquid outlet assembly, this adjacent arrangement shortens the path for hot water to flow from the heating assembly to the liquid outlet assembly, reducing heat loss and flow resistance during liquid transport.

[0015] In one embodiment, the coffee powder supply assembly includes a grinding assembly, a nozzle moving assembly, a nozzle, and a baffle. The grinding assembly is disposed on the housing assembly, the nozzle moving assembly is disposed on the housing assembly and / or the grinding assembly, the nozzle is disposed on the nozzle moving assembly, and the baffle is disposed on the housing assembly and is rotatable relative to the housing assembly. When the nozzle moving assembly drives the nozzle to move, it has at least a first position and a second position. When the nozzle is in the first position, it is in communication with the grinding assembly. When the nozzle is in the second position, it is separated from the grinding assembly and abuts against the baffle. When the nozzle abuts against the baffle, the baffle blocks the nozzle. By driving the nozzle to switch between the first and second positions through the nozzle moving assembly, precise delivery of coffee powder from the grinding assembly to the brewing assembly is achieved. When the nozzle is in the first position, it is in communication with the grinding assembly, and freshly ground coffee powder can fall directly into the nozzle and be guided to the brewing assembly, ensuring accurate powder quantity and leak-free delivery. When the nozzle moves to the second position and abuts against the baffle, the baffle seals the nozzle outlet, effectively preventing residual coffee grounds from leaking out when not in use. This design is particularly important because residual coffee grounds exposed to air easily absorb moisture and clump together, which not only affects the accuracy of the coffee grounds used in subsequent coffee brewing but may also breed bacteria.

[0016] In one embodiment, the coffee grinding assembly includes a housing assembly, a drive assembly, a transmission assembly, an inner grinding blade assembly, and an outer grinding blade assembly. The housing assembly has a grinding chamber and a powder outlet communicating with the grinding chamber. The drive assembly is mounted on the housing assembly, and the transmission assembly is mounted on the housing assembly and drivenly connected to it. The inner grinding blade assembly is mounted on the housing assembly and extends into the grinding chamber, and is drivenly connected to the transmission assembly. The outer grinding blade assembly is mounted on the housing assembly and extends into the grinding chamber, forming a grinding gap between the outer grinding blade assembly and the inner grinding blade assembly. The relative positions of the inner and outer grinding blade assemblies can be precisely controlled through this grinding gap. The drive assembly drives the inner grinding blade assembly to rotate at high speed via the transmission assembly, cooperating with the fixed outer grinding blade assembly to form a highly efficient shearing force field. The coffee beans are subjected to uniform compression and shearing within the grinding chamber, ensuring consistent particle size. The housing assembly provides a stable support structure for the entire grinding assembly, effectively reducing vibration and noise during the grinding process. The design of the outlet allows the ground coffee powder to flow smoothly from the grinding chamber, into the nozzle, and then to the brewing components.

[0017] In one embodiment, the nozzle moving assembly includes a support assembly, a drive assembly, a slider, a connecting plate, a protective cover, and a control assembly. The support assembly is disposed on the grinding assembly and has a guide cavity. The support assembly has an installation port and a powder passage opening communicating with the guide cavity. The drive assembly is disposed on the support assembly, with a portion of the drive assembly located on the guide cavity. The slider is movably disposed on the support assembly and partially located within the guide cavity. A portion of the slider extends outside the guide cavity through the installation port. The slider is drively connected to the drive assembly. The connecting plate is disposed on the slider and has an opening. The nozzle is disposed on the connecting plate and communicates with the opening. The protective cover is disposed on the support assembly and covers the installation port. The control assembly is disposed on the support assembly and located on both sides of the protective cover. When the slider slides relative to the support assembly, it can abut against the control assemblies on both sides of the protective cover. When the support assembly abuts against the control assembly on one side, the connecting plate blocks the powder passage opening. When the support assembly abuts against the control assembly on the other side, the powder passage opening, the opening, and the nozzle communicate. The drive assembly, connected to a slider via a transmission system, precisely controls the movement of the nozzle at different positions. When the slider slides to abut against one side of the control assembly, the connecting plate blocks the nozzle inlet, separating the nozzle from the grinding assembly and preventing further coffee powder delivery. When the slider slides to the other side and abuts against the control assembly, the nozzle inlet, opening, and nozzle are connected, allowing coffee powder to smoothly enter the nozzle from the grinding assembly through this channel. This precise positioning ensures controllable start and stop of the coffee powder delivery process. For example, when adjusting the amount of coffee powder or pausing the brewing process, the powder path can be quickly cut off to prevent waste of excess coffee powder. The guide cavity provides a stable sliding track for the slider, reducing wobbling and offset during movement, ensuring the accuracy of the nozzle's movement path, and preventing coffee powder spillage or obstruction due to wobbling. Simultaneously, a protective cover at the mounting opening effectively prevents coffee powder leakage from the connection between the slider and the support assembly, keeping the equipment's interior clean. The control assembly not only provides positioning but also acts as a limit protection mechanism. When the slider slides to its limit position and abuts against the control assembly, it prevents excessive slider movement that could damage the internal structure or the nozzle.

[0018] In one embodiment, the water system assembly includes a water supply assembly, a first pipeline assembly, and a second pipeline assembly. The water supply assembly is mounted on the housing assembly and is connected to the heating assembly. The heating assembly is connected to the brewing assembly via the first pipeline assembly, and the brewing assembly is connected to the dispensing assembly via the second pipeline assembly. The water supply assembly, connected to the housing assembly and directly connected to the heating assembly, provides a stable water source for the entire water system. Its design ensures a continuous and even flow of water into the heating assembly, avoiding water temperature fluctuations or extraction interruptions due to unstable water supply. The heating assembly and brewing assembly are connected via the first pipeline assembly, which minimizes heat loss during hot water transmission. The second pipeline assembly, connecting the brewing assembly and the dispensing assembly, provides a smooth output channel for the extracted coffee liquid.

[0019] In one embodiment, the brewing assembly includes a brewing assembly and a brewing drive assembly. The brewing assembly is disposed on the housing assembly and is connected to the heating assembly and the dispensing assembly via a water channel assembly. The brewing drive assembly is disposed on the housing assembly and is driveably connected to the brewing assembly. By driving the brewing drive assembly to the brewing assembly, key parameters during the brewing process can be precisely adjusted. For example, by controlling the pressure and stroke of the brewing drive assembly, the degree of compaction of the coffee grounds by the brewing assembly can be precisely adjusted, changing the resistance of water flow through the coffee grounds layer, thereby controlling the extraction time and extraction volume.

[0020] In one embodiment, the brewing assembly includes a brewing shell, a lifting drive assembly, an upper brewing assembly, and a lower brewing assembly. The lifting drive assembly is disposed on the brewing shell and is kinetically connected to the brewing drive assembly. The upper brewing assembly is disposed on the brewing shell, and the lower brewing assembly is disposed on the lifting drive assembly. The lower brewing assembly is disposed opposite to the upper brewing assembly. The lifting drive assembly is used to drive the lower brewing assembly to move toward or away from the upper brewing assembly. By kinetically connecting the lifting drive assembly and the brewing drive assembly, the distance between the lower and upper brewing assemblies can be precisely controlled, thereby accurately adjusting the compaction degree of the coffee grounds layer. For example, when making espresso, the brewing drive unit drives the lifting drive unit, which moves the lower brewing unit upward, compresses the coffee grounds, and creates a higher extraction pressure to achieve rapid high-pressure extraction, resulting in a rich, full-bodied coffee liquid rich in crema. When making pour-over coffee, the distance between the two components can be increased to reduce the compaction of the coffee grounds, allowing hot water to slowly penetrate and fully release the aroma and flavor of the coffee, meeting the strict requirements of different coffee-making processes for extraction pressure.

[0021] In one embodiment, the brewing shell has a perforation. The lower brewing assembly includes an outer sleeve, an inner cylinder assembly, and a locking assembly. The outer sleeve is mounted on the lifting drive assembly and can move along it. The inner cylinder assembly is movably disposed within the outer sleeve. The locking assembly is mounted on the inner cylinder assembly. The inner cylinder assembly can pass through the perforation. The locking assembly abuts against the wall of the perforation. When the distance between the locking assembly and the wall of the perforation exceeds a preset value, the locking assembly can extend or retract. When retracted, the locking assembly can pass through the perforation. The perforation provides a precise positioning channel for the inner cylinder assembly. Combined with the abutment function between the locking assembly and the perforation wall, the extension or retraction of the locking assembly can limit and unlock the inner cylinder assembly. The cooperation between the locking assembly and the inner cylinder assembly can limit the inner cylinder assembly to achieve relative movement between the outer sleeve and the inner cylinder assembly.

[0022] The second aspect of this application discloses a coffee brewing method applied to the aforementioned coffee machine, comprising the following steps:

[0023] S1. Start the water circuit component to supply water to the heating component, and the heating component heats the input water;

[0024] S2. Start the brewing component. Drive the lifting drive component through the brewing drive component. The lifting drive component drives the outer sleeve to rise. When the outer sleeve rises, the tightening component abuts against the brewing shell. The outer sleeve continues to rise relative to the inner cylinder component. After the outer sleeve rises to the first preset position, the lifting drive component moves in the opposite direction and the outer sleeve moves down to the second preset position.

[0025] S3. Activate the powder supply component and move the nozzle to the outer sleeve to feed coffee powder into the outer sleeve. After the coffee powder feeding is complete, move the nozzle back to its original position.

[0026] S4. Restart the brewing drive assembly to drive the lifting drive assembly to move. The lifting drive assembly drives the lower brewing assembly to move toward the upper brewing assembly. The locking assembly abuts against the brewing shell. After the relative force between the locking assembly and the brewing shell is greater than the preset force, the tightening assembly deforms and passes through the perforation and continues to move upward. The lower brewing assembly abuts against the upper brewing assembly to squeeze the coffee powder.

[0027] S5. Hot water heated by the heating element is input into the lower brewing unit. After passing through the coffee powder, the hot water passes through the upper brewing unit and is output. The output coffee liquid enters the liquid dispensing unit for output.

[0028] The water circuit assembly supplies water to the heating assembly and heats it. The coordinated operation of the water supply component, the first pipeline component, and the second pipeline component ensures stable water flow and minimal heat loss. The heating assembly precisely heats the water to the optimal temperature for coffee extraction, providing a stable foundation for subsequent extraction. For example, when making multiple cups of coffee consecutively, a stable hot water supply and temperature control prevent under- or over-extraction caused by water temperature fluctuations, ensuring consistent flavor in every cup. The brewing drive assembly, via a lifting drive component, moves the outer sleeve to adjust the filling space. Then, the powder supply component precisely moves the nozzle to the outer sleeve to add coffee grounds. Reactivating the brewing drive assembly moves the lower brewing component toward the upper brewing component. The locking component passes through the perforation after the pressure reaches the preset value, ensuring a stable extraction space. During high-pressure extraction, this tight sealing structure prevents hot water leakage, maintains stable extraction pressure, and allows hot water to evenly penetrate the coffee grounds layer, fully extracting the effective components of the coffee and producing a rich, full-bodied coffee liquid rich in crema.

[0029] In one embodiment, step S is followed by the following step:

[0030] S6. Start the brewing drive assembly to drive the lifting drive assembly to move. The lifting drive assembly drives the lower brewing assembly to move away from the upper brewing assembly. The locking assembly abuts against the brewing shell and limits the inner cylinder assembly. The outer sleeve continues to move away from the upper brewing assembly relative to the inner cylinder assembly. After the outer sleeve moves, the brewed coffee powder is leaked out.

[0031] S7. Use a spatula to scrape off the brewed coffee grounds;

[0032] S8. The outer sleeve continues to be driven, and the locking component deforms through the perforation and returns to the initial position after being subjected to a pressure greater than the preset force, while the brewing drive component stops.

[0033] The brewing drive assembly drives the lifting drive assembly to move the lower brewing assembly away from the upper brewing assembly. The outer sleeve moves relative to the inner cylinder assembly, discharging the brewed coffee grounds. This design utilizes the structural features of the lower brewing assembly, eliminating the need for manual removal of coffee grounds and achieving a high degree of automation. A scraper removes any remaining coffee grounds, further ensuring no coffee grounds remain inside the lower brewing assembly and brewing shell. The outer sleeve continues to move, and the locking assembly, under pressure exceeding a preset force, deforms, passes through the perforation, and returns to its initial position, stopping the brewing drive assembly. This process not only achieves precise resetting of all components of the lower brewing assembly, preparing it for the next brewing session, but also ensures a smooth transition. Attached Figure Description

[0034] Figure 1 A 3D diagram of a coffee machine;

[0035] Figure 2This is the first exploded view of the coffee machine;

[0036] Figure 3 This is the second exploded view of the coffee machine;

[0037] Figure 4 This is a first cross-sectional view of the coffee machine;

[0038] Figure 5 This is the first cross-sectional view of the exploded view of the coffee machine;

[0039] Figure 6 This is the third exploded view of the coffee machine;

[0040] Figure 7 This is the fourth exploded view of the coffee machine;

[0041] Figure 8 This is the second cross-sectional view of the exploded view of the coffee machine;

[0042] Figure 9 This is the third cross-sectional view of the exploded view of the coffee machine;

[0043] Figure 10 This is a cross-sectional view of the housing assembly;

[0044] Figure 11 A 3D view of the brewing components;

[0045] Figure 12 This is a cross-sectional view of the brewing components;

[0046] Figure 13 This is a 3D view of the bottom brewing component;

[0047] Figure 14 This is a cross-sectional view of the lower brewing component;

[0048] Figure 15 This is a 3D view of the powder scraped off from the bottom brewing unit;

[0049] Figure 16 A perspective view of the initial device for the lower brewing assembly;

[0050] Figure 17 A 3D view of the powder supply component;

[0051] Figure 18 An exploded view of the powder supply assembly;

[0052] Figure 19 A 3D view of the nozzle moving component;

[0053] Figure 20 The first exploded view of the nozzle moving component;

[0054] Figure 21 This is a second exploded view of the nozzle moving assembly;

[0055] Figure 22 A 3D view of the coffee grinder assembly;

[0056] Figure 23 This is an exploded view of the coffee grinder assembly.

[0057] The correspondence between the reference numerals and the component names is as follows:

[0058] 1. Outer shell assembly; 101. Brewing chamber; 102. Mounting chamber; 103. Water tank chamber; 104. Grinding chamber; 105. Exhaust port;

[0059] 2 Brewing components, 21 Brewing components, 211 Brewing shell, 2101 Perforation, 212 Lifting drive components, 213 Upper brewing components, 214 Lower brewing components, 2141 Outer sleeve, 2142 Inner cylinder components, 2143 Locking components, 22 Brewing drive components;

[0060] 3. Powder supply assembly, 31. Grinding assembly, 311. Housing assembly, 312. Drive assembly, 313. Transmission assembly, 314. Inner grinding blade assembly, 315. Outer grinding blade assembly, 3101. Grinding chamber, 3102. Powder outlet, 32. Powder nozzle moving assembly, 321. Support assembly, 322. Drive assembly, 323. Slider, 324. Connecting plate, 325. Protective cover, 326. Control assembly, 3201. Guide cavity, 3202. Mounting port, 3203. Powder passage port, 3204. Opening, 33. Powder nozzle, 34. Baffle plate;

[0061] 4. Heating components;

[0062] 5. Liquid dispensing components;

[0063] 6. Water circuit assembly, 61. Water supply assembly, 62. First pipeline assembly, 63. Second pipeline assembly. Detailed Implementation

[0064] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0065] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0066] The coffee machine and coffee brewing method of some embodiments of the present invention are described below with reference to the accompanying drawings.

[0067] Example 1

[0068] like Figures 1 to 23As shown, this embodiment discloses a coffee machine, including:

[0069] The outer casing assembly 1 is provided with a brewing chamber 101 and an installation chamber 102. The brewing chamber 101 and the installation chamber 102 are adjacent to each other. The outer casing assembly 1 is provided with an exhaust port 105 that communicates with the brewing chamber 101.

[0070] Brewing component 2 is disposed on housing component 1 and is at least partially located within mounting cavity 102;

[0071] The powder supply component 3 is disposed on the outer casing component 1 and adjacent to the brewing component 2. The powder supply component 3 is used to supply coffee powder to the brewing component 3.

[0072] Heating component 4 is disposed on housing component 1 and located within mounting cavity 102;

[0073] Liquid dispensing component 5 is disposed on the outer casing component 1 and adjacent to the mounting cavity 102;

[0074] Water circuit component 6 is mounted on outer shell component 1, and water circuit component 6 connects heating component 4, brewing component 2 and liquid outlet component 5 in sequence.

[0075] The coffee machine disclosed in this application has its outer casing assembly 1 arranging the brewing chamber 101 and the mounting chamber 102 adjacently, shortening the distance between the powder supply assembly 3 and the brewing assembly 2. This results in a shorter and more direct coffee powder transmission path, reducing powder loss and residue. During automatic powder filling, coffee powder can enter the brewing assembly 2 from the powder supply assembly 3 more smoothly, avoiding blockages or spillage caused by excessively long paths. Simultaneously, the exhaust port 105 effectively discharges the heat and steam generated during the brewing process, preventing accumulation inside the outer casing, keeping the operating area dry and comfortable, and improving the user experience. The heating assembly 4 is located inside the mounting chamber 102, adjacent to the brewing assembly 2, reducing heat loss during hot water transmission. The water circuit assembly 6 connects the heating assembly 4, the brewing assembly 2, and the liquid dispensing assembly 5 sequentially, forming an efficient liquid transmission path, ensuring that hot water reaches the brewing assembly 2 quickly at a suitable temperature, improving extraction efficiency. The adjacent mounting cavity 102 and brewing cavity 101 are designed to allow the heat generated by the heating component 4 during operation to be transferred to the brewing cavity 101. The water vapor and condensate accumulated in the brewing cavity 101 during operation can be heated and discharged through the exhaust port 105, making the inside of the brewing cavity 101 drier and reducing the impact on the internal components.

[0076] like Figure 4As shown, in addition to the features of the above embodiments, this embodiment further specifies that the mounting cavity 102 is adjacent to the top of the housing assembly 1. With heat-generating components such as the heating assembly 4 located within the mounting cavity 102 near the top, heat can be dissipated to the outside more quickly through natural convection or the added top heat dissipation vents. The rising nature of hot air allows heat to spontaneously flow upwards and dissipate, preventing heat buildup inside the device and avoiding overheating that could affect the lifespan and performance of the components. Simultaneously, the heat at the top can keep the top warm, allowing freshly brewed coffee to be placed there.

[0077] like Figure 5 and Figure 10 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the outer casing assembly 1 is provided with a water tank cavity 103 and a grinding cavity 104, and the water tank cavity 103, grinding cavity 104, brewing cavity 101 and mounting cavity 102 are arranged sequentially. The sequential arrangement of the water tank cavity 103, grinding cavity 104, and brewing cavity 101 forms a continuous coffee-making path. After the water circuit assembly 6 draws water from the water tank cavity 103, it is heated by the heating assembly 4 in the mounting cavity 102 and flows directly to the brewing cavity 101; simultaneously, the powder supply assembly 3 delivers the coffee powder ground in the grinding cavity 104 into the brewing cavity 101. This layout reduces the detours of coffee powder and hot water during transmission, shortening the preparation time.

[0078] like Figure 4 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the liquid outlet assembly 5 is adjacent to the mounting cavity 102. The proximity of the liquid outlet assembly 5 to the mounting cavity 102 shortens the connection distance between the liquid outlet assembly 5 and the heating assembly 4, water circuit assembly 6, etc. Since the water circuit assembly 6 connects the heating assembly 4 and the liquid outlet assembly 5, the adjacent arrangement shortens the path for hot water to flow from the heating assembly 4 to the liquid outlet assembly 5, reducing heat loss and flow resistance during liquid transmission.

[0079] like Figure 17 and Figure 18As shown, in addition to the features of the above embodiments, this embodiment further defines the following: the coffee powder supply component 3 includes a grinding component 31, a nozzle moving component 32, a nozzle 33, and a baffle plate 34. The grinding component 31 is disposed on the outer shell component 1, the nozzle moving component 32 is disposed on the outer shell component 1 and / or the grinding component 31, the nozzle 33 is disposed on the nozzle moving component 32, and the baffle plate 34 is disposed on the outer shell component 1 and is rotatable relative to the outer shell component 1. When the nozzle moving component 32 drives the nozzle 33 to move, it has at least a first position and a second position. When the nozzle 33 is in the first position, the nozzle 33 is connected to the grinding component 31. When the nozzle 33 is in the second position, the nozzle 33 is separated from the grinding component 31 and abuts against the baffle plate 34. When the nozzle 33 abuts against the baffle plate 34, the baffle plate 34 blocks the nozzle 33. By driving the nozzle 33 to switch between the first and second positions by the nozzle moving component 32, the precise delivery of coffee powder from the grinding component 31 to the brewing component 2 is achieved. When the nozzle 33 is in the first position, it connects with the grinding assembly 31, allowing freshly ground coffee to fall directly into the nozzle 33 and be guided to the brewing assembly 2, ensuring accurate coffee quantity and leak-free transfer. When the nozzle 33 moves to the second position and abuts against the baffle plate 34, the baffle plate 34 seals the outlet of the nozzle 33, effectively preventing residual coffee powder from leaking out when not in operation. This design is particularly important because residual coffee powder exposed to air easily absorbs moisture and clumps, affecting not only the accuracy of coffee quantity in subsequent brewing but also potentially breeding bacteria.

[0080] like Figure 22 and Figure 23As shown, in addition to the features of the above embodiments, this embodiment further defines the following: the grinding assembly 31 includes a housing assembly 311, a drive assembly 312, a transmission assembly 313, an inner grinding blade assembly 314, and an outer grinding blade assembly 315. The housing assembly 311 has a grinding chamber 3101 and a powder outlet 3102 communicating with the grinding chamber 3101. The drive assembly 312 is disposed on the housing assembly 311, and the transmission assembly 313 is disposed on the housing assembly 311 and is drively connected to the drive assembly 312. The inner grinding blade assembly 314 is disposed on the housing assembly 311 and extends into the grinding chamber 3101, and is drively connected to the transmission assembly 313. The outer grinding blade assembly 315 is disposed on the housing assembly 311 and extends into the grinding chamber 3101, forming a grinding gap between the outer grinding blade assembly 315 and the inner grinding blade assembly 314. The particle size of the coffee powder can be precisely controlled by adjusting the relative positions of the inner grinding blade assembly 314 and the outer grinding blade assembly 315 through the grinding gap formed between them. The drive assembly 312 drives the inner grinding blade assembly 314 to rotate at high speed via the transmission assembly 313, which cooperates with the fixed outer grinding blade assembly 315 to form an efficient shearing force field. Coffee beans are subjected to uniform compression and shearing within the grinding chamber, ensuring consistent particle size. The housing assembly 311 provides a stable support structure for the entire grinding assembly 31, effectively reducing vibration and noise during the grinding process. The design of the powder outlet 3102 allows the ground coffee powder to flow smoothly from the grinding chamber 3101, enter the nozzle 33, and be transported to the brewing assembly 2.

[0081] like Figure 19 , Figure 20 and Figure 21As shown, in addition to the features of the above embodiments, this embodiment further defines: the powder nozzle moving assembly 32 includes a support assembly 321, a drive assembly 322, a slider 323, a connecting plate 324, a protective cover 325, and a control assembly 326. The support assembly 321 is disposed on the grinding assembly 31, and the support assembly 321 has a guide cavity 3201. The support assembly 321 has an installation port 3202 communicating with the guide cavity 3201 and a powder passage 3203. The drive assembly 322 is disposed on the support assembly 321, and a portion of the drive assembly 322 is located on the guide cavity 3201. The slider 323 is movably disposed on the support assembly 321 and a portion is located within the guide cavity 3201. A portion of the slider 323 extends outside the guide cavity 3201 through the installation port 3202. Slider 323 is connected to drive assembly 322 via transmission. Connecting plate 324 is mounted on slider 323 and has an opening 3204. Powder nozzle 33 is mounted on connecting plate 324 and communicates with opening 3204. Protective cover 325 is mounted on bracket assembly 321 and covers mounting opening 3202. Control assembly 326 is mounted on bracket assembly 321 and located on both sides of protective cover 325. When slider 323 slides relative to bracket assembly 321, it can abut against control assembly 326 on both sides of protective cover 325. When bracket assembly 321 abuts against control assembly 326 on one side, connecting plate 324 blocks powder opening 3203. When bracket assembly 321 abuts against control assembly 326 on the other side, it communicates with powder opening 3203, opening 3204, and powder nozzle 33. Drive assembly 322 is connected to slider 323 via transmission, and can precisely control the movement of powder nozzle 33 between different positions. When the slider 323 slides to abut against the control component 326 on one side, the connecting plate 324 blocks the powder inlet 3203, separating the nozzle 33 from the grinding assembly 31 and preventing further coffee powder delivery. When the slider 323 slides to the other side and abuts against the control component 326, the powder inlet 3203, opening 3204, and nozzle 33 are connected, allowing coffee powder to smoothly enter the nozzle 33 from the grinding assembly 31 through this channel. This precise positioning ensures controllable start and stop of the coffee powder delivery process. For example, when adjusting the amount of coffee powder or pausing production, the powder path can be quickly cut off to prevent excess coffee powder waste. The guide cavity 3201 provides a stable sliding track for the slider 323, reducing shaking and offset during movement, ensuring the accuracy of the nozzle 33's movement path, and preventing coffee powder spillage or poor delivery due to shaking. At the same time, the protective cover 325 is installed at the mounting port 3202 to effectively prevent coffee powder from leaking from the connection between the slider 323 and the support assembly 321, keeping the inside of the equipment clean. The control component 326 is not only used for positioning, but also serves as a limit protection function. When the slider 323 slides to its limit position and abuts against the control component 326, it can prevent the slider 323 from moving excessively and damaging the internal structure or the powder nozzle 33.

[0082] like Figure 2 and Figure 3As shown, in addition to the features of the above embodiments, this embodiment further defines: the water circuit assembly 6 includes a water supply assembly 61, a first pipeline assembly 62, and a second pipeline assembly 63. The water supply assembly 61 is disposed on the outer casing assembly 1 and is connected to the heating assembly 4. The heating assembly 4 is connected to the brewing assembly 2 via the first pipeline assembly 62, and the brewing assembly 2 is connected to the dispensing assembly 5 via the second pipeline assembly 63. The water supply assembly 61 is connected to the outer casing assembly 1 and directly connected to the heating assembly 4, providing a stable water source for the entire water circuit system. Its design ensures that water can flow continuously and evenly into the heating assembly 4, avoiding water temperature fluctuations or extraction interruptions caused by unstable water supply. The heating assembly 4 is connected to the brewing assembly 2 via the first pipeline assembly 62, which minimizes heat loss during hot water transmission. The second pipeline assembly 63 between the brewing assembly 2 and the dispensing assembly 5 provides a smooth output channel for the extracted coffee liquid.

[0083] like Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the brewing component 2 includes a brewing component 21 and a brewing drive component 22. The brewing component 21 is disposed on the outer shell component 1 and is connected to the heating component 4 and the dispensing component 5 through the water channel component 6. The brewing drive component 22 is disposed on the outer shell component 1 and is drive-connected to the brewing component 21. Through the drive-connection between the brewing drive component 22 and the brewing component 21, key parameters in the brewing process can be precisely adjusted. For example, by controlling the pressure and stroke of the brewing drive component 22, the degree of compaction of the coffee powder by the brewing component 21 can be precisely adjusted, changing the resistance of water flow through the coffee powder layer, thereby controlling the extraction time and extraction volume.

[0084] like Figure 11 and Figure 12As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the brewing assembly 21 includes a brewing shell 211, a lifting drive assembly 212, an upper brewing assembly 213, and a lower brewing assembly 214. The lifting drive assembly 212 is disposed on the brewing shell 211 and is driveably connected to the brewing drive assembly 22. The upper brewing assembly 213 is disposed on the brewing shell 211, and the lower brewing assembly 214 is disposed on the lifting drive assembly 212. The lower brewing assembly 214 is disposed opposite to the upper brewing assembly 213. The lifting drive assembly 212 is used to drive the lower brewing assembly 214 to move toward or away from the upper brewing assembly 213. Through the drive connection between the lifting drive assembly 212 and the brewing drive assembly 22, the distance between the lower brewing assembly 214 and the upper brewing assembly 213 can be precisely controlled, thereby precisely adjusting the compaction degree of the coffee powder layer. For example, when making espresso, the brewing drive component 22 drives the lifting drive component 212, causing the lower brewing component 214 to move upward, compressing the coffee grounds and creating a higher extraction pressure to achieve rapid high-pressure extraction, resulting in a rich, full-bodied coffee liquid rich in oils. When making pour-over coffee, the distance between the two components can be increased to reduce the compaction of the coffee grounds, allowing hot water to slowly penetrate and fully release the aroma and flavor of the coffee, meeting the strict requirements of different coffee-making processes for extraction pressure.

[0085] like Figure 11 , Figure 13 , Figure 14 , Figure 15 and Figure 16 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the brewing shell 211 is provided with a through hole 2101, the lower brewing assembly 214 includes an outer sleeve 2141, an inner cylinder assembly 2142 and a locking assembly 2143, the outer sleeve 2141 is disposed on the lifting drive assembly 212 and can move along the lifting drive assembly 212, the inner cylinder assembly 2142 is movably disposed in the outer sleeve 2141, the locking assembly 2143 is disposed on the inner cylinder assembly 2142, the inner cylinder assembly 2142 can pass through the through hole 2101, the locking assembly 2143 can abut against the hole wall of the through hole 2101, the locking assembly 2143 can extend and retract when the hole wall of the through hole 2101 is greater than a preset value, and the locking assembly 2143 can pass through the through hole 2101 after being tightened. The perforation 2101 provides a precise positioning channel for the inner cylinder assembly 2142. Combined with the abutment function of the locking assembly 2143 against the wall of the perforation 2101, the extension and retraction of the locking assembly 2143 can limit and unlock the inner cylinder assembly 2142. The cooperation between the locking assembly 2143 and the inner cylinder assembly 2142 allows for the limitation of the inner cylinder assembly 2142, thus enabling relative movement between the outer sleeve 2141 and the inner cylinder assembly 2142.

[0086] Example 2

[0087] This embodiment discloses a coffee brewing method applied to the aforementioned coffee machine, comprising the following steps:

[0088] S1. Start the water circuit component 6 to supply water to the heating component 4, and the heating component 4 heats the input water.

[0089] S2. Start brewing component 2. Drive lifting drive component 212 to move through brewing drive component 22. Lifting drive component 212 drives outer sleeve 2141 to rise. When outer sleeve 2141 rises, tightening component 2143 abuts against brewing shell 211. Outer sleeve 2141 continues to rise relative to inner cylinder component 2142. After outer sleeve 2141 rises to the first preset position, lifting drive component 212 moves in the opposite direction and outer sleeve 2141 moves down to the second preset position.

[0090] S3. Start the powder supply assembly 3 and move the powder nozzle 33 to the outer casing sleeve 2141 to input coffee powder into the outer casing sleeve 2141. After the coffee powder is input, move the powder nozzle 33 back to its original position.

[0091] S4. Restart the brewing drive assembly 22 to drive the lifting drive assembly 212 to move. The lifting drive assembly 212 drives the lower brewing assembly 214 to move toward the upper brewing assembly 22. The locking assembly 2143 abuts against the brewing housing 211. After the relative force between the locking assembly 2143 and the brewing housing 211 is greater than the preset force, the tightening assembly 2143 deforms and passes through the through hole 2101 and continues to move upward. The lower brewing assembly 214 abuts against the upper brewing assembly 213 to squeeze the coffee powder.

[0092] S5. The hot water heated by the heating element 4 is input into the lower brewing element 214. After passing through the coffee powder, the hot water passes through the upper brewing element 213 and is output. The output coffee liquid enters the liquid dispensing element 5 for output.

[0093] The water circuit assembly 6 is activated to supply water and heat the heating assembly 4. The coordinated operation of the water supply assembly 61, the first pipeline assembly 62, and the second pipeline assembly 63 within the water circuit assembly 6 ensures stable water flow and minimal heat loss. The heating assembly 4 precisely heats the water to a suitable temperature for coffee extraction, providing a stable foundation for subsequent extraction. For example, when continuously brewing multiple cups of coffee, a stable hot water supply and temperature control prevent under- or over-extraction caused by water temperature fluctuations, ensuring consistent flavor in every cup. The brewing drive assembly 22 moves the outer sleeve 2141 via the lifting drive assembly 212, first adjusting the filling space, and then the powder supply assembly 3 precisely moves the nozzle 33 to the outer sleeve 2141 to add coffee powder. The brewing drive assembly 22 is activated again, causing the lower brewing assembly 214 to move towards the upper brewing assembly 213. The locking assembly 2143 passes through the perforation 2101 after the pressure reaches the preset value, ensuring a stable extraction space. During the high-pressure extraction process, this tight sealing structure prevents hot water leakage, ensures stable extraction pressure, and allows hot water to pass evenly through the coffee grounds, fully extracting the effective components in the coffee and producing a rich, full-bodied coffee liquid rich in oils.

[0094] In addition to the features of the above embodiments, this embodiment further specifies that: after step S5, the following steps are also included:

[0095] S6. Start the brewing drive assembly 22 to drive the lifting drive assembly 212 to move. The lifting drive assembly 212 drives the lower brewing assembly 214 to move away from the upper brewing assembly 22. The locking assembly 2143 abuts against the brewing shell 211. The locking assembly 2143 limits the inner cylinder assembly 2142. The outer sleeve 2141 continues to move away from the upper brewing assembly 22 relative to the inner cylinder assembly 2142. After the outer sleeve 2141 moves, the brewed coffee powder is leaked out.

[0096] S7. Use a spatula to scrape off the brewed coffee grounds;

[0097] S8. The outer sleeve 2141 continues to be driven, and the locking component 2143 deforms after being subjected to a pressure greater than the preset force, passes through the perforation 2101 and returns to the initial position, while the brewing drive component 22 is stopped.

[0098] The brewing drive assembly 22 drives the lifting drive assembly 212 to move the lower brewing assembly 214 away from the upper brewing assembly 213. The outer sleeve 2141 moves relative to the inner cylinder assembly 2142, discharging the brewed coffee grounds. This design utilizes the structural features of the lower brewing assembly 214, eliminating the need for manual pouring of coffee grounds and achieving a high degree of automation. A scraper removes any remaining coffee grounds, further ensuring that there are no coffee grounds left inside the lower brewing assembly 214 and the brewing housing 211. The outer sleeve 2141 continues to move, and the locking assembly 2143, after being compressed by a force greater than a preset value, deforms and passes through the perforation 2101 back to its initial position, stopping the brewing drive assembly 22. This process not only achieves precise resetting of all components of the lower brewing assembly 214, preparing it for the next brewing session, but also ensures the smooth operation of the brewing drive assembly 22.

[0099] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A coffee machine, characterized in that, The coffee machine includes: The outer casing assembly (1) is provided with a brewing chamber (101) and a mounting chamber (102), the brewing chamber (101) and the mounting chamber (102) are adjacent to each other, and the outer casing assembly (1) is provided with an exhaust port (105) communicating with the brewing chamber (101); A brewing component (2) is disposed on the housing assembly (1) and is at least partially located within the mounting cavity (102); A powder supply assembly (3) is disposed on the outer casing assembly (1) and adjacent to the brewing assembly (2). The powder supply assembly (3) is used to supply coffee powder to the brewing assembly (3). Heating assembly (4), the heating assembly (4) is disposed on the housing assembly (1) and located in the mounting cavity (102); Liquid discharge assembly (5), the liquid discharge assembly (5) is disposed on the outer shell assembly (1) and adjacent to the mounting cavity (102); Water circuit assembly (6) is disposed on the outer shell assembly (1), and the water circuit assembly (6) sequentially connects the heating assembly (4), the brewing assembly (2) and the liquid outlet assembly (5).

2. The coffee machine according to claim 1, characterized in that, The mounting cavity (102) is adjacent to the top of the housing assembly (1); And / or the outer casing assembly (1) is provided with a water tank cavity (103) and a grinding cavity (104), wherein the water tank cavity (103), the grinding cavity (104), the brewing cavity (101) and the mounting cavity (102) are arranged in sequence; And / or the liquid outlet assembly (5) is adjacent to the mounting cavity (102).

3. The coffee machine according to claim 1, characterized in that, The powder supply assembly (3) includes a grinding assembly (31), a nozzle moving assembly (32), a nozzle (33), and a baffle plate (34). The grinding assembly (31) is disposed on the outer shell assembly (1). The nozzle moving assembly (32) is disposed on the outer shell assembly (1) and / or the grinding assembly (31). The nozzle (33) is disposed on the nozzle moving assembly (32). The baffle plate (34) is disposed on the outer shell assembly (1) and is rotatable relative to the outer shell assembly (1). When the nozzle moving assembly (32) drives the nozzle (33) to move, it has at least a first position and a second position. When the nozzle (33) is in the first position, the nozzle (33) is connected to the grinding assembly (31). When the nozzle (33) is in the second position, the nozzle (33) is separated from the grinding assembly (31) and the nozzle (33) abuts against the shield (34). When the nozzle (33) abuts against the shield (34), the shield (34) blocks the nozzle (33).

4. The coffee machine according to claim 3, characterized in that, The grinding assembly (31) includes a housing assembly (311), a drive assembly (312), a transmission assembly (313), an inner grinding blade assembly (314), and an outer grinding blade assembly (315). The housing assembly (311) has a grinding chamber (3101) and a powder outlet (3102) communicating with the grinding chamber (3101). The drive assembly (312) is mounted on the housing assembly (311), and the transmission assembly (313) is mounted on the housing assembly (315). 11) The grinding inner blade assembly (314) is disposed on the housing assembly (311) and extends into the grinding cavity (3101). The grinding inner blade assembly (314) is connected to the drive assembly (313). The grinding outer blade assembly (315) is disposed on the housing assembly (311) and extends into the grinding cavity (3101). A grinding gap is formed between the grinding outer blade assembly (315) and the grinding inner blade assembly (314). And / or the powder nozzle moving assembly (32) includes a support assembly (321), a drive assembly (322), a slider (323), a connecting plate (324), a protective cover (325), and a control assembly (326). The support assembly (321) is disposed on the grinding assembly (31). The support assembly (321) is provided with a guide cavity (3201). The support assembly (321) has an installation port (3202) and a powder passage (3203) communicating with the guide cavity (3201). The drive assembly (322) is disposed on the bracket assembly (321), a portion of the drive assembly (322) is located on the guide cavity (3201), the slider (323) is movably disposed on the bracket assembly (321) and a portion is located within the guide cavity (3201), a portion of the slider (323) extends outside the guide cavity (3201) through the mounting port (3202), and the slider (323) is drively connected to the drive assembly (322). A connecting plate (324) is disposed on the slider (323), the connecting plate (324) having an opening (3204), the powder nozzle (33) being disposed on the connecting plate (324) and communicating with the opening (3204), the protective cover (325) being disposed on the bracket assembly (321) and covering the mounting port (3202), the control assembly (326) being disposed on the bracket assembly (321) and located on both sides of the protective cover (325), the slider... When the block (323) slides relative to the bracket assembly (321), it can abut against the control components (326) on both sides of the protective cover (325). When the bracket assembly (321) abuts against the control component (326) on one side, the connecting plate (324) blocks the powder inlet (3203). When the bracket assembly (321) abuts against the control component (326) on the other side, the powder inlet (3203), the opening (3204), and the powder nozzle (33) are connected.

5. The coffee machine according to claim 1, characterized in that, The water circuit assembly (6) includes a water supply assembly (61), a first pipeline assembly (62), and a second pipeline assembly (63). The water supply assembly (61) is disposed on the outer shell assembly (1). The water supply assembly (61) is connected to the heating assembly (4). The heating assembly (4) is connected to the brewing assembly (2) through the first pipeline assembly (62). The brewing assembly (2) is connected to the liquid outlet assembly (5) through the second pipeline assembly (63).

6. The coffee machine according to claim 1, characterized in that, The brewing component (2) includes a brewing component (21) and a brewing drive component (22). The brewing component (21) is disposed on the outer shell component (1). The brewing component (21) is connected to the heating component (4) and the liquid dispensing component (5) through the water channel component (6). The brewing drive component (22) is disposed on the outer shell component (1) and is drively connected to the brewing component (21).

7. The coffee machine according to claim 6, characterized in that, The brewing assembly (21) includes a brewing shell (211), a lifting drive assembly (212), an upper brewing assembly (213), and a lower brewing assembly (214). The lifting drive assembly (212) is disposed on the brewing shell (211) and is connected to the brewing drive assembly (22). The upper brewing assembly (213) is disposed on the brewing shell (211), and the lower brewing assembly (214) is disposed on the lifting drive assembly (212). The lower brewing assembly (214) is disposed opposite to the upper brewing assembly (213). The lifting drive assembly (212) is used to drive the lower brewing assembly (214) to move toward or away from the upper brewing assembly (213).

8. The coffee machine according to claim 8, characterized in that, The brewing housing (211) is provided with a perforation (2101). The lower brewing assembly (214) includes an outer sleeve (2141), an inner cylinder assembly (2142), and a locking assembly (2143). The outer sleeve (2141) is disposed on the lifting drive assembly (212) and can move along the lifting drive assembly (212). The inner cylinder assembly (2142) is movably disposed in the outer sleeve (2141). The locking assembly (2143) is disposed on the inner cylinder assembly (2142). The inner cylinder assembly (2142) can pass through the perforation (2101). The locking assembly (2143) can abut against the hole wall of the perforation (2101). When the locking assembly (2143) and the hole wall of the perforation (2101) are greater than a preset value, the locking assembly (2143) can extend and retract. After the locking assembly (2143) is tightened, it can pass through the perforation (2101).

9. A coffee brewing method, applied to the coffee machine of claim 8, characterized in that, The coffee brewing method described includes the following steps: S1. Start the water circuit component (6) to supply water to the heating component (4), and the heating component (4) heats the input water; S2. Start the brewing component (2), and drive the lifting drive component (212) to move through the brewing drive component (22). The lifting drive component (212) drives the outer sleeve (2141) to rise. When the outer sleeve (2141) rises, the tightening component (2143) abuts against the brewing shell (211). The outer sleeve (2141) continues to rise relative to the inner cylinder component (2142). After the outer sleeve (2141) rises to the first preset position, the lifting drive component (212) moves in the opposite direction and the outer sleeve (2141) moves down to the second preset position. S3. Start the powder supply assembly (3) and move the powder nozzle (33) to the outer casing sleeve (2141) to feed coffee powder into the outer casing sleeve (2141). After the coffee powder is fed in, move the powder nozzle (33) back to its original position. S4. Restart the brewing drive assembly (22) to drive the lifting drive assembly (212) to move. The lifting drive assembly (212) drives the lower brewing assembly (214) to move toward the upper brewing assembly (22). The locking assembly (2143) abuts against the brewing shell (211). After the relative force between the locking assembly (2143) and the brewing shell (211) is greater than the preset force, the tightening assembly (2143) deforms and passes through the perforation (2101) and continues to move upward. The lower brewing assembly (214) abuts against the upper brewing assembly (213) to squeeze the coffee powder. S5. The hot water heated by the heating element (4) is input into the lower brewing element (214). The hot water passes through the coffee powder and then through the upper brewing element (213) before being output. The output coffee liquid enters the liquid dispensing element (5) for output.

10. The coffee brewing method according to claim 9, characterized in that, The following steps are included after step S5: S6. Start the brewing drive assembly (22) to drive the lifting drive assembly (212) to move. The lifting drive assembly (212) drives the lower brewing assembly (214) to move away from the upper brewing assembly (22). The locking assembly (2143) abuts against the brewing shell (211). The locking assembly (2143) limits the inner cylinder assembly (2142). The outer sleeve (2141) continues to move away from the upper brewing assembly (22) relative to the inner cylinder assembly (2142). After the outer sleeve (2141) moves, the brewed coffee powder is leaked out. S7. Use a spatula to scrape off the brewed coffee grounds; S8. The outer sleeve (2141) continues to be driven, and the locking assembly (2143) deforms through the perforation (2101) after being subjected to a pressure greater than the preset force and returns to the initial position, while the brewing drive assembly (22) is stopped.

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