Coffee machine

Abstract

The utility model belongs to the technical field of coffee machines, and particularly provides a coffee machine. The utility model aims to solve the problem that the existing coffee machine is low in extraction efficiency of coffee powder. The coffee machine comprises a brewing device, an extrusion device, a water supply system and a vibration device. The brewing device is used for containing coffee powder. The squeezing device is used for squeezing coffee powder in the brewing device. The water supply system is used for supplying water to the brewing device so as to brew coffee powder. The vibration device is used for providing vibration for water and / or coffee powder in the brewing device so as to improve the extraction efficiency of the coffee powder. The utility model solves the technical problems.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coffee machine technical field, specifically provides a coffee machine. BACKGROUND

[0002] Coffee machine is a kind of machine that brews and extracts coffee powder into coffee solution. Since coffee powder is loose, when hot water passes through coffee powder, it will flow faster through the channel with smaller density, bypassing the part with larger density. This uneven water flow will lead to uneven extraction, some coffee powder is over-extracted, bitter taste; some coffee powder is under-extracted, taste is light, which affects the taste of the final coffee solution.

[0003] Therefore, some coffee machines are also equipped with compression devices to compress coffee powder into a cake shape, so that the density of coffee powder becomes more uniform. Further, during the extraction process, especially during high-pressure extraction, the density uniform cake structure can prevent coffee powder from being displaced or scattered under the impact of high-pressure water flow. And the compacted coffee powder can ensure that the water pressure of water flow is evenly distributed in the entire cake-shaped coffee powder.

[0004] However, the extraction efficiency of the existing coffee machine for coffee powder is low, which needs to be further improved. UTILITY MODEL CONTENTS

[0005] One purpose of the utility model is to solve the problem of low extraction efficiency of the existing coffee machine for coffee powder.

[0006] To achieve the above purpose, the utility model provides a coffee machine, which comprises:

[0007] A brewer for containing coffee powder;

[0008] A pressing device for pressing the coffee powder in the brewer;

[0009] A water supply system for providing water to the brewer to brew the coffee powder;

[0010] A vibration device for providing vibration to the water in the brewer and / or the coffee powder to improve the extraction efficiency of the coffee powder.

[0011] Optionally, the brewer is defined with a containing cavity for containing the coffee powder and a drainage cavity located at the bottom side of the containing cavity, the brewer is provided with a plurality of filter holes on the partition wall between the containing cavity and the drainage cavity, so that the solution extracted in the containing cavity enters the drainage cavity; The coffee nozzle is provided on the brewer and communicates with the drainage cavity.

[0012] Optionally, the pressing device comprises a pressing member and a driving member, the driving member is configured to drive the pressing member to move towards or away from the coffee powder in the brewing device.

[0013] Optionally, the pressing member defines a water distribution cavity, the water distribution cavity is configured to receive water provided by the water supply system, and a bottom wall of the water distribution cavity is provided with a plurality of water distribution holes, so that the water provided by the water supply system can uniformly infiltrate the coffee powder through the plurality of water distribution holes.

[0014] Optionally, the vibrating device comprises at least one ultrasonic vibration module mounted on the pressing member, and the ultrasonic vibration module is configured to provide ultrasonic vibration to the water distribution cavity.

[0015] Optionally, the ultrasonic vibration module is arranged on the top wall or the bottom wall of the water distribution cavity, so as to avoid the vibration wave formed by the ultrasonic vibration module being absorbed by the circumferential wall of the water distribution cavity.

[0016] Optionally, the driving member is an electromagnetic push rod.

[0017] Optionally, the water supply system comprises a water tank, a first water pump and a boiler connected in series, and the boiler is in fluid connection with the pressing device.

[0018] Optionally, the water supply system further comprises a waste cold reversing valve connected in series between the boiler and the pressing device, and a waste water tank in fluid connection with the waste cold reversing valve, and the waste cold reversing valve is configured to control the water flowing therethrough to flow to the pressing device or the waste water tank.

[0019] Optionally, the water supply system further comprises a branch reversing valve connected in series between the first water pump and the boiler, and the water supply system further comprises a cold water tank, a second water pump and a waste heat reversing valve connected in series between the branch reversing valve and the waste water tank, and the waste heat reversing valve is in fluid connection with the pressing device to control the water flowing therethrough to flow to the pressing device or the waste water tank.

[0020] Based on the foregoing description, those skilled in the art can understand that, in the technical solutions of the foregoing embodiments, the vibrating device is configured for the coffee machine to provide vibration to the water and / or the coffee powder in the brewing device, thereby improving the extraction efficiency of the coffee powder.

[0021] Further, the brewing device defines a containing cavity for containing the coffee powder and a drainage cavity located at the bottom side of the containing cavity, and a plurality of filter holes are arranged on the partition wall between the containing cavity and the drainage cavity, so that the extracted solution in the containing cavity can enter the drainage cavity through the filter holes. The coffee nozzle is in communication with the drainage cavity, so that the solution can be discharged through the coffee nozzle.

[0022] Further, by making the extrusion member define a water distribution cavity and providing a plurality of water distribution holes on the bottom wall of the water distribution cavity, water provided by the water supply system can flow through the water distribution cavity and the plurality of water distribution holes in sequence, thereby uniformly wetting the coffee powder and uniformly extracting the coffee powder.

[0023] Further, by providing the ultrasonic vibration module on the top wall or the bottom wall of the water distribution cavity, the propagation direction of ultrasonic vibration can be transmitted to the coffee powder along the direction of gravity, avoiding the absorption of vibration waves formed by the ultrasonic vibration module by the peripheral wall of the water distribution cavity, and improving the extraction efficiency of the coffee powder.

[0024] Other beneficial effects of the present utility model will be described in detail in the following with reference to the drawings, so that those skilled in the art can more clearly understand the improvement purposes, features and advantages of the present utility model. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the present utility model, the following will describe some embodiments of the present utility model with reference to the drawings. Those skilled in the art should understand that the components or parts indicated by the same reference numerals in different drawings are the same or similar; the drawings of the present utility model are not necessarily drawn to scale with each other. In the drawings:

[0026] Figure 1 is a principle schematic view of a coffee machine in some embodiments of the present utility model;

[0027] Figure 2 is a first axonometric view of components related to extracting coffee in some embodiments of the present utility model;

[0028] Figure 3 is a cross-sectional view of Figure 2 in the A-A direction;

[0029] Figure 4 is a second axonometric view of components related to extracting coffee in some embodiments of the present utility model;

[0030] Figure 5 is a cross-sectional view of Figures 2 to 4 components extruding coffee in the present utility model;

[0031] Figure 6 is a cross-sectional view of Figures 2 to 4 components extracting coffee in the present utility model.

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 001, coffee machine; 002, coffee powder; 003, water; 004, solution;

[0034] 100, brewer; 101, containing cavity; 102, draining cavity; 103, filtering hole; 110, coffee nozzle;

[0035] 200, extruding device; 210, extruding member; 211, connecting rod; 212, water inlet pipe; 2101, water distributing cavity; 2102, water distributing hole; 220, driving member;

[0036] 300, water supply system; 311, water tank; 312, first water pump; 313, boiler; 314, waste cold reversing valve; 315, waste water tank; 321, branch reversing valve; 322, cold water tank; 323, second water pump; 324, waste heat reversing valve; 301, first flow sensor; 302, first temperature sensor; 303, second temperature sensor; 304, second flow sensor;

[0037] 400, vibrating device; 410, ultrasonic vibration module. DETAILED DESCRIPTION

[0038] Those skilled in the art should understand that the embodiments described below are only a part of the embodiments of the present application, not all the embodiments of the present application, and the part of the embodiments are intended to explain the technical principles of the present application, not to limit the protection scope of the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should fall within the protection scope of the present application.

[0039] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the corresponding device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0040] Further, it needs to be explained that, in the description of the utility model, unless another explicit provision and limitation, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances. For example, the terms "mounting", "connecting", "connection" and "fixing" can be bolted connection, screw connection, welding, insertion, riveting, fusion, clamping or any feasible connection form without special description.

[0041] As shown in Figure 1 In some embodiments of the utility model, the coffee machine 001 includes a brewing device 100, a squeezing device 200, a water supply system 300 and a vibration device 400.

[0042] The brewing device 100 is used to accommodate coffee powder 002 (as shown in Figure 5 and Figure 6 ).

[0043] The squeezing device 200 is used to squeeze the coffee powder 002 (as shown in Figure 5 and Figure 6 ) in the brewing device 100.

[0044] The water supply system 300 is used to provide water 003 (as shown in Figure 6 ) to the brewing device 100 to brew the coffee powder 002 (as shown in Figure 6 ).

[0045] The vibration device 400 is used to provide vibration to the water and / or coffee powder 002 in the brewing device 100 to improve the extraction efficiency of the coffee powder 002.

[0046] Those skilled in the art can understand that, by configuring the vibration device 400 for the coffee machine 001 to provide vibration to the water and / or coffee powder 002 in the brewing device 100, the extraction efficiency of the coffee powder 002 is improved.

[0047] Continuing to refer to Figure 1 In some embodiments of the utility model, the water supply system 300 includes a water tank 311, a first water pump 312 and a boiler 313 connected in series, and the boiler 313 is fluidly connected with the squeezing device 200.

[0048] The system includes a water tank 311 for holding water, a first water pump 312 for pumping water out of the tank 311, and a boiler 313 for heating the water. Specifically, the boiler 313 may include a container and electric heating wires disposed inside and / or outside the container to heat the water within it. The boiler 313 may also be an instant hot water device.

[0049] Continue reading Figure 1 In some embodiments of this utility model, the water supply system 300 further includes a first flow sensor 301, which can be disposed between the water tank 311 and the first water pump 312. The first flow sensor 301 is used to detect the flow rate of water flowing from the water tank 311 to the first water pump 312.

[0050] Those skilled in the art will understand that during the operation of the water pump, when the water flow detected by the first flow sensor 301 suddenly decreases, it indicates that the water in the water tank 311 is insufficient or has been used up. At this time, the coffee machine 001 enables the user to add water to the water tank 311.

[0051] In this invention, the first flow sensor 301 can be any type of sensor, such as a vane type, a vortex type, or a Karman vortex type.

[0052] Continue reading Figure 1 In some embodiments of this utility model, the water supply system 300 may further include a waste cooling reversing valve 314 connected in series between the boiler 313 and the extrusion device 200 and a wastewater tank 315 fluidly connected to the waste cooling reversing valve 314.

[0053] Among them, the waste cold reversing valve 314 is used to control the flow of water through it to the squeezing device 200 or the waste water tank 315.

[0054] Continue reading Figure 1 In some embodiments of this utility model, the water supply system 300 may further include a first temperature sensor 302, which is used to detect the temperature of the water flowing out of the boiler 313. The first temperature sensor 302 may be a resistance sensor or a thermocouple sensor.

[0055] exist Figure 1 In the example shown, when the first temperature sensor 302 detects that the water temperature has not reached the preset temperature (e.g., 50°C, 75°C, 80°C, 85°C, 95°C, 98°C, etc.), the waste cooling reversing valve 314 controls the water flowing from the boiler 313 to flow to the wastewater container; when the first temperature sensor 302 detects that the water temperature has reached the preset temperature, the waste cooling reversing valve 314 controls the water flowing from the boiler 313 to flow to the brewer 100, so as to brew the coffee powder 002 in the brewer 100 at a constant temperature and ensure the taste of the coffee liquid.

[0056] Further, on the flow path of the water, the waste cold reversing valve 314 can be made as close to the brewer 100 as possible to shorten the path of the hot water from the waste cold reversing valve 314 to the brewer 100, preventing the hot water from being cooled due to the long path and affecting the taste of the coffee.

[0057] Correspondingly, the first temperature sensor 302 is arranged between the waste cold reversing valve 314 and the boiler 313 and as close to the waste cold reversing valve 314 as possible to shorten the path of the hot water from the first temperature sensor 302 to the brewer 100, preventing the waste of the hot water.

[0058] Continuing to refer to Figure 1 In some embodiments of the present application, the water supply system 300 can further include a branch reversing valve 321 connected in series between the first water pump 312 and the boiler 313.

[0059] In addition, the water supply system 300 can further include a cold water tank 322, a second water pump 323 and a waste heat reversing valve 324 connected in series between the branch reversing valve 321 and the waste water tank 315, and the waste heat reversing valve 324 is further connected to the extrusion device 200 to control the water flowing therethrough to flow to the extrusion device 200 or the waste water tank 315.

[0060] From Figure 1 It can be seen that the branch reversing valve 321 is used to control the water flowing out of the first water pump 312 to flow to the boiler 313 or the cold water tank 322, the waste heat reversing valve 324 is used to control the water flowing therethrough to flow to the brewer 100 or the waste water tank 315, and the second water pump 323 is used to drive the water in the cold water tank 322 to flow out.

[0061] Continuing to refer to Figure 1 In some embodiments of the present application, the water supply system 300 can further include a second temperature sensor 303 for detecting the temperature of the water in the cold water tank 322 and a second flow sensor 304 for detecting the flow of the water flowing out of the cold water tank 322.

[0062] In addition, in other embodiments of the present application, a third temperature sensor (not shown in the figure) can be arranged between the second water pump 323 and the waste heat reversing valve 324 according to the needs of those skilled in the art, so as to detect the temperature of the water flowing out of the second water pump 323 through the third temperature sensor, so that the coffee machine 001 controls the working state of the waste heat reversing valve 324 accordingly.

[0063] Among them, the second temperature sensor 303 and the third temperature sensor can be the same as the first temperature sensor 302 described above, and the second flow sensor 304 can be the same as the first flow sensor 301 described above.

[0064] Further, although not shown in the figures, in some embodiments of the present application, the water supply system 300 can further comprise a semiconductor refrigeration module for cooling the water in the cold water tank 322.

[0065] It can be seen from Figure 1 that the waste cold reversing valve 314, the branch reversing valve 321 and the waste heat reversing valve 324 can all be two-position three-way reversing valves.

[0066] As shown in Figures 2 to 4 some embodiments of the present application, the brewing device 100 defines a containing cavity 101 for containing coffee powder 002 and a drainage cavity 102 located at the bottom side of the containing cavity 101. The brewing device 100 is provided with a plurality of filter holes 103 on the partition wall between the containing cavity 101 and the drainage cavity 102, so that the extracted solution 004 (as shown in Figure 6 ) in the containing cavity 101 can enter the drainage cavity 102. The brewing device 100 is provided with a coffee outlet 110 in communication with the drainage cavity 102.

[0067] As can be understood by those skilled in the art, by defining the containing cavity 101 for containing coffee powder 002 and the drainage cavity 102 located at the bottom side of the containing cavity 101 in the brewing device 100, and providing a plurality of filter holes 103 on the partition wall between the containing cavity 101 and the drainage cavity 102, so that the extracted solution 004 in the containing cavity 101 can enter the drainage cavity 102 through the filter holes 103. By providing the coffee outlet 110 in communication with the drainage cavity 102, the solution 004 can be discharged through the coffee outlet 110.

[0068] As shown in Figure 2 some embodiments of the present application, the pressing device 200 comprises a pressing member 210 and a driving member 220, and the driving member 220 is used to drive the pressing member 210 to move towards the direction of approaching and / or moving away from the coffee powder 002 in the brewing device 100.

[0069] The driving member 220 can be an electric push rod, or a combination of a motor and a screw nut pair.

[0070] As shown in Figure 2 , the pressing member 210 is provided with a connecting rod 211, so that the pressing member 210 is connected together with the driving member 220 through the connecting rod 211.

[0071] In addition, in other embodiments of the present application, those skilled in the art can also omit the connecting rod 211 on the pressing member 210 as needed, and make the pressing member 210 connected together with the driving member 220 through other ways. For example, by providing threaded holes on the pressing member 210 and connecting together with the driving member 220.

[0072] As Figure 3 and Figure 4 shown, in some embodiments of the present application, the extrusion member 210 is defined with a water distribution cavity 2101, which is used to receive water provided by the water supply system 300. The bottom wall of the water distribution cavity 2101 is distributed with a plurality of water distribution holes 2102, so that the water provided by the water supply system 300 can be evenly infiltrated into the coffee powder 002 through the plurality of water distribution holes 2102.

[0073] Those skilled in the art can understand that by defining the extrusion member 210 with a water distribution cavity 2101 and providing a plurality of water distribution holes 2102 on the bottom wall of the water distribution cavity 2101, the water provided by the water supply system 300 can flow through the water distribution cavity 2101 and the plurality of water distribution holes 2102 in turn, thereby evenly infiltrating the coffee powder 002 and uniformly extracting the coffee powder 002.

[0074] As Figures 2 to 4 shown, in some embodiments of the present application, the extrusion member 210 is further provided with or connected to a water inlet pipe 212, which is in communication with the water distribution cavity 2101. The end of the water inlet pipe 212 away from the water distribution cavity 2101 is in communication with the water supply system 300, so as to introduce the water provided by the water supply system 300 into the water distribution cavity 2101.

[0075] As Figures 1 to 4 shown, in some embodiments of the present application, the vibration device 400 can include at least one ultrasonic vibration module 410 mounted on the extrusion member 210, which is configured to provide ultrasonic vibration into the water distribution cavity 2101.

[0076] Exemplarily, the ultrasonic vibration module 410 is two, as shown in Figure 1 and Figure 2 , and is centrally symmetrically distributed with respect to the axis of the extrusion member 210.

[0077] As Figures 1 to 4 shown, in some embodiments of the present application, the ultrasonic vibration module 410 is arranged on the top wall or the bottom wall of the water distribution cavity 2101, so as to avoid the vibration wave formed by the ultrasonic vibration module 410 being absorbed by the peripheral wall of the water distribution cavity 2101.

[0078] Those skilled in the art can understand that by arranging the ultrasonic vibration module 410 on the top wall or the bottom wall of the water distribution cavity 2101, the propagation direction of the ultrasonic vibration can be along the direction of gravity (the axial direction of the extrusion member 210, Figure 3The ultrasonic vibration waves generated by the ultrasonic vibration module 410 are transmitted to the coffee powder 002 along the vertical direction (the up-down direction shown in the figure), avoiding the absorption of the vibration waves by the peripheral wall of the water separation cavity 2101, and improving the extraction efficiency of the coffee powder 002. In particular, the ultrasonic waves propagating along the gravity direction are more likely to pass through the water separation hole 2102 and act on the coffee powder 002.

[0079] The working principle of the coffee machine 001 of the present application will be briefly described below with reference to Figure 1 、 Figure 5 and Figure 6 .

[0080] As shown in Figure 5 , a sufficient amount of coffee powder 002 is first poured into the containing cavity 101 of the brewing device 100, and then the pressing device 200 is used to compress the coffee powder 002.

[0081] When hot coffee is needed, the branch reversing valve 321 is switched to a state in which the first water pump 312 is in communication with the boiler 313, and the waste cold reversing valve 314 is switched to a state in which the boiler 313 is in communication with the waste water tank 315. The first water pump 312 is started to pump the water in the water tank 311 into the boiler 313, and then to the waste water tank 315. When the water temperature detected by the first temperature sensor 302 reaches a preset temperature (for example, 50℃, 75℃, 80℃, 85℃, 95℃, 98℃, etc.), the waste cold reversing valve 314 is switched to a state in which the boiler 313 is in communication with the pressing device 200, so that the water flowing out of the boiler 313 flows to the pressing device 200.

[0082] When cold coffee is needed, the branch reversing valve 321 is switched to a state in which the first water pump 312 is in communication with the cold water tank 322, and the waste heat reversing valve 324 is switched to a state in which the boiler 313 is in communication with the waste water tank 315. The first water pump 312 is started to pump the water in the water tank 311 into the cold water tank 322, and the amount of water flowing into the cold water tank 322 is detected in real time by the first flow sensor 301. When the amount of water in the cold water tank 322 is sufficient, the semiconductor refrigeration module is started. When the water temperature in the cold water tank 322 detected by the second temperature sensor 303 reaches a set temperature (for example, 0℃, 1℃, 3℃, 4℃, 10℃, 12℃, etc.), the second water pump 323 is started for a period of time (for example, 3S, 5S, 10S, etc.), and the normal temperature water in the pipeline is discharged into the waste water tank 315. Then the waste heat reversing valve 324 is switched to a state in which the second water pump 323 is in communication with the pressing device 200, so that the water flowing out of the cold water tank 322 flows to the pressing device 200.

[0083] As shown in Figure 6As shown, after the water 003 is received by the pressing device 200, the water 003 will be evenly infiltrated and penetrated into the coffee powder 002 under the action of the water distribution hole 2102. The solution 004 that penetrates the coffee powder 002 will enter the liquid discharge cavity 102 through the filter hole 103, and be discharged from the coffee maker 100 through the coffee nozzle 110.

[0084] During the extraction, the vibration device 400 is started to provide vibration to the coffee powder 002 and / or the water 003, so as to promote the dissolution of the water 003 to the substances in the coffee powder 002, thereby improving the extraction efficiency.

[0085] After the extraction is completed, the pressing device 200 is extracted from the coffee maker 100, and then the coffee powder 002 is taken out by a tool, or the coffee maker 100 is taken off from the coffee machine 001, and then the coffee powder 002 is taken out by inverting.

[0086] Then the pressing member 210 of the pressing device 200 can be moved into the coffee maker 100, and then the water supply system 300 is supplied with water 003 again, and the vibration device 400 is started, so as to clean the coffee maker 100 and the pressing member 210. In this way, the coffee powder 002 and the coffee liquid adhered in the coffee maker 100 and the pressing member 210, especially in the water distribution cavity 2101, the water distribution hole 2102, the liquid discharge cavity 102 and the filter hole 103, can be effectively cleaned.

[0087] It should be noted that the working steps of the coffee machine 001 described in the foregoing are only for helping those skilled in the art to understand the working principle of the coffee machine 001 of the present application, and do not mean that the coffee machine 001 of the present application must work according to the working steps described in the foregoing. Those skilled in the art can also adjust the working steps of the coffee machine 001 as needed.

[0088] Based on the foregoing description, those skilled in the art can understand that the coffee machine 001 of the present application not only has high extraction efficiency, but also is convenient to clean and the cleaning is also relatively complete.

[0089] So far, the technical solutions of the present application have been described in combination with the foregoing multiple embodiments, but those skilled in the art can easily understand that the protection scope of the present application is not limited to these specific embodiments. Those skilled in the art can split and combine the technical solutions in the above-mentioned embodiments, or make equivalent changes or replacements to the related technical features, as long as they do not deviate from the technical principles of the present application. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present application will fall within the protection scope of the present application.

[0090] In the present utility model, the term "communication" means fluid communication to allow fluid (for example, air, liquid) to flow between two things in communication with each other. And the "communication" can be fluid leakage-free flow between two things in communication with each other, or can be fluid leakage flow between two things in communication with each other.

Claims

1. A coffee machine, characterized in that, include: A brewing device used to hold coffee grounds; An extrusion device for extruding the coffee powder inside the brewer; A water supply system for supplying water to the brewer to brew the coffee powder; A vibration device is used to provide vibration to the water and / or coffee powder in the brewer to improve the extraction efficiency of the coffee powder.

2. The coffee machine according to claim 1, characterized in that, The brewing device defines a receiving cavity for containing the coffee powder and a draining cavity located at the bottom of the receiving cavity. The brewing device is provided with multiple filter holes on the partition wall between the receiving cavity and the draining cavity, so that the solution extracted in the receiving cavity enters the draining cavity; The brewer is equipped with a coffee spout that communicates with the drain chamber.

3. The coffee machine according to claim 1, characterized in that, The extrusion device includes an extrusion member and a driving member, the driving member being used to drive the extrusion member to move toward and / or away from the coffee powder in the brewer.

4. The coffee machine according to claim 3, characterized in that, The extrusion member defines a water distribution chamber for receiving water supplied by the water supply system. The bottom wall of the water distribution chamber has multiple water distribution holes, so that the water supplied by the water supply system can evenly wet the coffee powder through the multiple water distribution holes.

5. The coffee machine according to claim 4, characterized in that, The vibration device includes at least one ultrasonic vibration module mounted on the extrusion member. The ultrasonic vibration module is configured to provide ultrasonic vibrations into the water-dividing cavity.

6. The coffee machine according to claim 5, characterized in that, The ultrasonic vibration module is disposed on the top or bottom wall of the water distribution cavity to prevent the vibration waves generated by the ultrasonic vibration module from being absorbed by the peripheral wall of the water distribution cavity.

7. The coffee machine according to claim 3, characterized in that, The driving component is an electromagnetic push rod.

8. The coffee machine according to any one of claims 1 to 7, characterized in that, The water supply system includes a water tank, a first water pump, and a boiler connected in series, with the boiler being fluidly connected to the extrusion device.

9. The coffee machine according to claim 8, characterized in that, The water supply system also includes a waste cooling reversing valve connected in series between the boiler and the extrusion device, and a wastewater tank fluidly connected to the waste cooling reversing valve. The waste cooling reversing valve is used to control the flow of water through it to the extrusion device or the wastewater tank.

10. The coffee machine according to claim 9, characterized in that, The water supply system also includes a branch reversing valve connected in series between the first water pump and the boiler. The water supply system also includes a cold water tank, a second water pump, and a waste heat reversing valve connected in series between the branch reversing valve and the waste water tank. The waste heat reversing valve is also fluidly connected to the extrusion device to control the flow of water through it to the extrusion device or the waste water tank.

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