Coffee bean quantifying structure of coffee machine

Abstract

The utility model relates to the technical field of coffee machines. The coffee bean quantifying structure of the coffee machine comprises a container assembly, and the container assembly comprises a container piece, a rotating disc and a temporary storage frame which are sequentially arranged from top to bottom and share the same axis; a plurality of container bottom wall holes which are uniformly distributed around the axis of the container part are formed in the bottom wall of the container part, a plurality of rotating disc holes which are uniformly distributed around the axis of the rotating disc are formed in the rotating disc, and a caching groove is formed in the caching frame; the rotating disc has rotating power; the container piece is directly or indirectly connected with the rotating disc in a rotating mode, and the container bottom wall holes are completely staggered with the rotating disc holes respectively and can directly face the rotating disc holes respectively. The bottom end face of the rotating disc is attached to the top end face of the temporary storage frame, and the rotating disc is provided with a rotating disc hole which is completely located in the temporary storage groove when overlooked. On the premise that coffee beans can be quantitatively output, the inner cavity of the container piece can be isolated from the outside, and the coffee beans in the container piece are reduced or prevented from being oxidized.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, and in particular to a vacuum coffee machine, a coffee bean metering structure for a coffee machine, a vacuum mixing structure, a sealing structure for a vacuum coffee machine, and a coffee making method based on a vacuum coffee machine. Background Technology

[0002] In traditional coffee machines, coffee beans or grounds need to be transferred between different units during the grinding, heating, and extraction processes. This increases the chances of oxidation due to contact with air, leading to the loss of volatile oils, antioxidants, and enzymes in the coffee grounds, resulting in flavor changes such as sourness. This problem is particularly pronounced when the coffee grounds have a large surface area in contact with air.

[0003] To minimize the coffee beans' contact with air, the containers used to hold and dispense them are sealed, making it more difficult to dispense measured quantities of coffee beans. The containers used for processing the coffee beans also need to be sealed, and since adding coffee beans to these containers is essential, it's necessary to automatically open and close the containers and ensure their airtightness. Utility Model Content

[0004] One objective of this invention is to solve or alleviate the aforementioned technical problems.

[0005] The present invention employs a coffee bean dispensing structure for a coffee machine, comprising a container assembly, which includes a container component, a rotating disk, and a buffer rack arranged sequentially from top to bottom and coaxially aligned. The container component has multiple bottom wall holes evenly distributed around its axis, the rotating disk has multiple rotating disk holes evenly distributed around its axis, and the buffer rack has a buffer groove. The rotating disk has rotational power. The container component is directly or indirectly rotatably connected to the rotating disk, the bottom wall holes of the container are completely offset from the rotating disk holes, and the bottom wall holes of the container can be directly aligned with the rotating disk holes. The bottom surface of the rotating disk is in contact with the top surface of the buffer rack, and the rotating disk has rotating disk holes that are completely located within the buffer groove when viewed from above.

[0006] The present invention achieves the following effect: while being able to quantitatively output coffee beans, it can also ensure that the inner cavity of the container is isolated from the outside world, and reduce or prevent the coffee beans inside the container from being oxidized.

[0007] A further technical solution includes a container base located between the container component and the rotating disk. The container base has a number of base holes equal to the number of holes in the container bottom wall. The base holes are evenly distributed around the center line of the container base. The bottom end face of the container component is in contact with and hinged to the container base. The bottom wall holes of the container are completely offset from the base holes, and the bottom wall holes of the container can be directly opposite the base holes.

[0008] This technical solution allows for easy movement of the container and its base before coffee beans are added into the container.

[0009] A further technical solution is provided where one of the bottom end face of the container and the container base is provided with a rotation limiting groove, and the other is provided with a rotation limiting protrusion that is inserted into the rotation limiting groove. The states in which the rotation limiting protrusion abuts against the two ends of the rotation limiting groove correspond to the states in which the bottom wall hole of the container is completely misaligned with the hole of the base, and the states in which the bottom wall hole of the container is directly opposite to the hole of the base.

[0010] This technical solution can ensure the rotation angle between the container components and the container base, thereby improving reliability.

[0011] A further technical solution involves providing a base mounting protrusion on the side wall of the container base.

[0012] This technical solution allows the container base to be easily installed onto the carrier component.

[0013] In a further technical solution, the rotation direction of one end of the rotation limiting groove corresponding to the state where the bottom wall hole of the container is completely misaligned with the base hole, and the rotation direction of the one end of the rotation limiting groove corresponding to the state where the bottom wall hole of the container is directly opposite the base hole, are the same as the rotation direction of the base mounting protrusion that locks the container base.

[0014] This technical solution facilitates the closing and opening of the bottom wall holes of the container.

[0015] A further technical solution is that the bottom wall of the container is provided with a guide groove that communicates with the top of the hole in the bottom wall of the container, and the cross-sectional area of ​​the guide groove decreases from top to bottom.

[0016] This technical solution ensures the accuracy of coffee bean quantity measurement.

[0017] In a further technical solution, the edges of the holes in the bottom wall of the container extend downward to form sealed flanges, which are respectively attached to the container base.

[0018] This technical solution ensures a tight seal between the container and the container base while also ensuring that the container can rotate smoothly relative to the container base.

[0019] A further technical solution is to provide a container cap at the top of the container, which completely covers the top opening of the container.

[0020] This technical solution ensures the sealing of the container components.

[0021] In a further technical solution, the container assembly also includes a rotating disk power gear with rotational power, wherein the rotating disk is a gear and its sidewall meshes with the rotating disk power gear.

[0022] This technical solution avoids limiting the size of the rotating disk's bore by placing the motor at the center of the rotating disk's axis. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a vacuum coffee machine according to an embodiment of the present invention. Figure 1 .

[0024] Figure 2 This is a three-dimensional schematic diagram of a vacuum coffee machine according to an embodiment of the present invention. Figure 2 Container component 1 and water tank 91 are not shown.

[0025] Figure 3 This is a three-dimensional exploded view of a vacuum coffee machine according to an embodiment of the present invention. Figure 1 .

[0026] Figure 4 This is a three-dimensional exploded view of a vacuum coffee machine according to an embodiment of the present invention. Figure 2 Functional component 7, electrical control device 8, and part of the carrier component 9 are not shown.

[0027] Figure 5 This is a three-dimensional half-sectional schematic diagram of a vacuum coffee machine according to an embodiment of the present invention; functional component 7 is not shown.

[0028] Figure 6 This is a three-dimensional exploded view of the container assembly 1, sealing structure 2, and processing structure 3 of the vacuum coffee machine according to an embodiment of this utility model. Figure 1 .

[0029] Figure 7 This is a three-dimensional exploded view of the container assembly 1, sealing structure 2, and processing structure 3 of the vacuum coffee machine according to an embodiment of this utility model. Figure 2 .

[0030] Figure 8 This is an exploded perspective view of a portion of container component 1 in an embodiment of the present invention.

[0031] Figure 9 This is a three-dimensional half-sectional schematic diagram of a portion of the container assembly 1 in an embodiment of the present invention.

[0032] Figure 10 This is an exploded perspective view of the rotating disk 13, the buffer rack 14, and the sealing structure 2 of an embodiment of this utility model.

[0033] Figure 11 This is a top view of the rotating disk 13, the buffer rack 14, and the sealing structure 2 of an embodiment of this utility model.

[0034] Figure 12This is a schematic diagram of section SEC1.

[0035] Figure 13 This is a three-dimensional schematic diagram of section 2 SEC2.

[0036] Figure 14 This is an exploded perspective view of the blade assembly 32 according to an embodiment of the present invention.

[0037] Figure 15 This is a perspective view of the blade assembly 32 according to an embodiment of the present invention.

[0038] Figure 16 This is a side view of the blade assembly 32 according to an embodiment of the present invention; line LIE1 represents the horizontal plane.

[0039] Figure 17 This is a half-sectional schematic diagram of a vacuum coffee machine according to an embodiment of the present invention.

[0040] Figure 18 This is a schematic diagram of DTL1 in detail one.

[0041] The accompanying drawings in the specification that best illustrate the technical features of this utility model are: Figure 6 .

[0042] Section 1 (SEC1); Section 2 (SEC2); Detail 1 (DTL1); Line 1 (LINE1); Container Assembly 1; Container Part 11; Container Bottom Wall Hole 111; Rotation Limiting Protrusion 112; Flange 113; Guide Groove 117; Central Shaft 118; Container Base 12; Base Hole 121; Rotation Limiting Groove 122; Base Mounting Protrusion 123; Rotating Disc 13; Rotating Disc Hole 131; Rotation Connection Structure 138; Rotating Disc Power Gear 139; Buffer Rack 14 ; Buffer slot 141; Container lid 19; Sealing structure 2; Sealing fixing lid 21; Bean inlet 211; Linear sliding structure 212; Linear sliding power component 219; Movable lid 22; Movable lid hole 221; Sealing part 222; Sealing ring 223; Weighing plate moving body 224; Weighing plate connecting protrusion 225; Movable lid protrusion 229; Movable lid limiting bracket 23; Limiting bracket hole 231; Weighing plate 24; Relief groove 249; Weighing frame 25; Weighing plate support body 25 4; Weighing plate positioning edge 255; Processing structure 3; Integrated container 31; Heating device 311; Rotating shaft hole 312; Water inlet 314; Air extraction hole 315; Bottom outlet 318; Blade assembly 32; Blade drive shaft 321; Positioning sleeve 322; Shaft seal 328; Bearing 329; Blade 33; Upper blade 331; Middle blade 332; Lower blade 333; Cutting edge 334; Cutting tooth 335; Upward tilt angle 336; Lower extension body 337; Shaft connection 339; outlet valve; rotary power unit; 391; rotary power end; speed change device; 392; water pump; 4; vacuum pump; 5; functional component; 7; filter device; 71; drawer assembly; 711; filter basket; 712; coffee pot; 72; electrical control device; 8; weighing sensor; 81; position sensor; 82; temperature sensor; 87; in-situ sensor; 88; power supply device; 89; carrier assembly; 9; water tank; 911; water source interface; 92; container tank; 923; base mounting slot. Detailed Implementation

[0043] The specific embodiments of this utility model will now be described with reference to the accompanying drawings.

[0044] As a specific embodiment, the vacuum coffee machine of this utility model includes a container assembly 1, a sealing structure 2, a processing structure 3, and a carrier assembly 9 provided with a water source interface 911. Figure 2 As shown, a water tank 91 is provided on the carrier component 9, and the water tank 91 is connected to the water source interface 911 on the carrier component 9, so that water can be supplied to the water source interface 911 through the water tank 91. It is easy to understand that water can also be supplied to the water source interface 911 through water pipes, etc.

[0045] The carrier assembly 9 is equipped with an electronic control device 8, a water pump 4, and a vacuum pump 5. For example... Figure 4 , 5As shown, both the water pump 4 and the vacuum pump 5 are fixedly mounted on the inner wall of the carrier assembly 9 using clamps. It is easy to understand that the water pump 4 and the vacuum pump 5 can also be mounted in other locations on the carrier assembly 9.

[0046] The processing structure 3 includes an integrated container 31, a blade assembly 32, and a rotary power device 39. The integrated container 31 is fixed inside the carrier assembly 9 and is equipped with a heating device 311, a temperature sensor 87, a rotating shaft hole 312, a water inlet 314, an air extraction hole 315, and a bottom outlet 318. The bottom outlet 318 is equipped with an outlet valve 38. Figure 7 As shown, the integrated container 31 is made of die-cast aluminum, and its bottom is provided with a roughly annular heating device 311. When the heating device 311 is energized, the temperature inside the integrated container 31 increases. It is easy to understand that the bottom outlet 318 is exposed outside the carrier assembly 9, allowing the mixture of coffee powder and water inside the integrated container 31 to be discharged through the bottom outlet 318 to the filter device 71 described later. The outlet valve 38 is a conventional solenoid valve or similar device, which controls the opening and closing of the bottom outlet 318.

[0047] Water pump 4, vacuum pump 5, heating device 311, temperature sensor 87, rotary power device 39, and outlet valve 38 are electrically connected to the electronic control device 8. The electronic control device 8 is existing technology and typically includes circuit boards and other devices for electronic control, a screen for displaying information, and buttons or a touchscreen for inputting information. It is easy to understand that the electronic control device 8 can control the start, stop, and operating status of water pump 4, vacuum pump 5, heating device 311, and rotary power device 39. For example, the electronic control device 8 controls the rotation speed of rotary power device 39 via a power supply, controls the flow rate and running time of water pump 4, and controls the power input of heating device 311 via voltage control. Temperature sensor 87 transmits temperature information to the electronic control device 8, and the electronic control device 8 controls heating device 311, enabling temperature control of the integrated container 31. Typically, the electronic control device 8 is also electrically connected to a presence sensor 88 for detecting the position of the coffee pot 72 (described later). Typically, the electronic control device 8 is connected to a power supply device 89, which may contain a battery or power supply cable.

[0048] The sealing structure 2 includes a sealing and fixing cover 21 and a movable cover 22. The sealing and fixing cover 21 has a bean inlet 211 that completely covers the top opening of the integrated container 31. The movable cover 22 has a movable cover hole 221 and a sealing part 222 and is movably connected to the sealing and fixing cover 21, so that the movable cover hole 221 and the sealing part 222 can be directly opposite to the bean inlet 211. In other words, when the movable cover hole 221 is directly opposite to the bean inlet 211, the sealing part 222 is completely offset from the bean inlet 211, and when the sealing part 222 is directly opposite to the bean inlet 211, the movable cover hole 221 is completely offset from the bean inlet 211. For example, a part of the sealing and fixing cover 21 is embedded in the integrated container 31, and a rubber ring (not shown in the attached figure) is provided between the sealing and fixing cover 21 and the integrated container 31 to achieve fixation and sealing between the two. For example, the movable cover 22 is rotatably connected to the sealing cover 21 and driven by a motor, so that the movable cover 22 can rotate relative to the sealing cover 21 in the horizontal plane, thereby enabling the movable cover hole 221 and the sealing part 222 to be directly aligned with the bean inlet 211. Of course, the movable cover 22 and the sealing cover 21 can also be movably connected by subsequent methods.

[0049] The blade assembly 32 includes a blade drive shaft 321 and a blade 33 fixed to the blade drive shaft 321. The blade 33 is located within an integrated container 31. The bottom end of the blade drive shaft 321 extends from a rotating shaft hole 312 and connects to the rotating power end 391 of a rotating power device 39. The rotating power device 39 can be a motor, with its motor shaft connected to the rotating power end 391. Alternatively, the rotating power device 39 can be connected to the bottom end of the blade drive shaft 321 via a gearbox transmission device 392. It is easy to understand that rotation of the rotating power device 39 drives the blade drive shaft 321 and the blade 33 to rotate.

[0050] Water source interface 911 is connected to water inlet 314 via water pump 4, and the path from water source interface 911 to water inlet 314 is a one-way path from water source interface 911 to water inlet 314. In other words, water source interface 911 is connected to the inlet of water pump 4 via a pipe (not shown in the attached diagram), and the outlet of water pump 4 is connected to water inlet 314 via a pipe (not shown in the attached diagram), thereby enabling water from water source interface 911 to be transported to water inlet 314 and enter the integrated container 31. For example, a one-way valve or solenoid valve is provided between water pump 4 and water inlet 314. This one-way valve or solenoid valve only allows water or air to flow from water pump 4 to water inlet 314, thus making the path from water source interface 911 to water inlet 314 a one-way path. Alternatively, water pump 4 can be a diaphragm pump to simplify the one-way valve or solenoid valve and reduce costs.

[0051] The vacuum pump 5 is connected to the evacuation port 315. It is easy to understand that the carrier assembly 9 is not usually completely sealed, so even though the vacuum pump 5 is located inside the carrier assembly 9, the vacuum pump 5 can extract the air from the integrated container 31 and the sealing cover 21 to the atmosphere.

[0052] The coffee-making method based on a vacuum coffee maker according to an embodiment of this utility model, which uses the aforementioned vacuum coffee maker, includes the following steps:

[0053] In the step of injecting coffee beans, the movable cap 22 moves relative to the sealing cap 21 so that the movable cap hole 221 is aligned with the bean inlet 211, and then coffee beans are added into the integrated container 31; for example, 31g of coffee beans are added. The movable cap 22 moves relative to the sealing cap 21 so that the sealing part 222 is aligned with the bean inlet 211, and the outlet valve 38 is closed.

[0054] In the vacuum grinding step, the vacuum pump 5 is started to create and maintain a vacuum inside the integrated container 31, and the rotary power device 39 is started to grind the coffee beans into coffee powder by the blade 33 at a grinding speed. For example, the vacuum is -80kpa±10%.

[0055] The steps for brewing coffee are as follows: after the vacuum pump 5 stops and the air pressure in the integrated container 31 returns to atmospheric pressure, room temperature water is added to the integrated container 31 (the total amount of water minus the amount of water used for soaking, described later). Then, the heating device 311 is activated to bring the temperature in the integrated container 31 to the brewing temperature and maintain the brewing time; for example, the brewing temperature is 90 to 96 degrees Celsius.

[0056] In the coffee dispensing step, the outlet valve 38 is opened, allowing the mixture of coffee powder and water in the integrated container 31 to be dispensed from the outlet valve 38.

[0057] It should be noted that the vacuum coffee machine of this embodiment needs to be used in conjunction with the existing functional component 7. Specifically, the functional component 7 includes a filter device 71 and a coffee pot 72, which are arranged from top to bottom below the outlet valve 38. When the mixture of coffee powder and water output from the outlet valve 38 passes through the filter device 71, larger coffee powder impurities are filtered out by the filter device 71, and the coffee liquid passes through the filter device 71 into the coffee pot 72 for consumption. For example, the filter device 71 includes a drawer 711 inserted into the carrier assembly 9, a filter basket 712 disposed on the drawer 711, and a filter (not shown in the figure) placed in the filter basket 712. In the above process, the coffee beans are ground, heated, and extracted in a single sealed space, avoiding or reducing the opportunity for coffee powder to come into contact with oxygen in the air during transfer between different units, thereby minimizing oxidation and maximizing the preservation of volatile oils, antioxidants, and enzymes in the coffee powder.

[0058] It should be noted that since the sealing cap 21 completely covers the top opening of the integrated container 31, cleaning of the integrated container 31 needs to be completed through an automatic cleaning process. Specifically: the water pump 4 is started to inject room temperature water into the integrated container 31; the heating device 311 is started to heat the water in the integrated container 31 to 70°C and maintain it for 3 minutes to enhance the cleaning effect and loosen the residue (coffee powder residue, etc.) in the integrated container 31; the rotating power device 39 is started to make the blade 33 rotate at a low speed of 200 RPM for 2 minutes to generate a cyclone cleaning effect; the outlet valve 38 is opened to discharge the wastewater (a mixture of residue and water) from the bottom outlet 318 into the wastewater container, thus cleaning the inside of the integrated container 31.

[0059] The coffee-making method based on a vacuum coffee machine according to an embodiment of this utility model further includes a step of soaking the coffee beans between the step of injecting coffee beans and the step of vacuum grinding. Specifically, the water pump 4 is activated to inject room temperature water (i.e., water at room temperature, typically 25 degrees Celsius) into the integrated container 31, allowing the coffee beans to be soaked in water heated to the soaking temperature for the required soaking time (for temperatures higher than room temperature, the heating device 311 needs to be activated). This ensures sufficient extraction of the coffee bean flavor. For example, the soaking temperature is room temperature to 45 degrees Celsius, and the soaking time is 2 to 10 minutes.

[0060] The coffee-making method based on a vacuum coffee maker according to an embodiment of this utility model further includes a stirring step between the step of soaking coffee beans and the step of vacuum grinding. Specifically, the rotary power device 39 is activated to run at a stirring speed for a specified time. This ensures uniform grinding of the coffee beans and prevents clumping. For example, the stirring speed is 50 to 120 RPM, and the stirring time is 20 to 30 seconds.

[0061] The coffee-making method based on a vacuum coffee machine according to an embodiment of this utility model further includes a final mixing step between the coffee brewing step and the coffee output step. Specifically, the rotary power device 39 is activated to operate at a mixing speed and for a mixing time. This ensures that the coffee powder and water are fully mixed, ensuring that the coffee flavor is fully mixed, and that the coffee liquid has a smooth taste. The mixing speed is 800 RPM, and the mixing time is 3 to 10 seconds.

[0062] The following are several specific embodiments of a coffee-making method based on a vacuum espresso machine. It should be noted that the weight of the coffee beans and the total amount of water (i.e., the amount of room temperature water added plus any additional water) can be increased or decreased accordingly; as long as the ratio of the two remains constant, the coffee concentration will remain constant. With the total amount of water constant, increasing the weight of the coffee beans, for example, by 20%, can increase the coffee concentration.

[0063] Example 1 aims to provide a balanced, traditional coffee flavor. Specifically: 31g of coffee beans are added. 300ml of room temperature water is added. The steeping temperature is 45 degrees Celsius, and the steeping time is 3 minutes. The stirring speed is 50 RPM, and the stirring time is 30 seconds. The grinding speed is 1600 RPM, and the vacuum is -80 kPa. Water is added to a final volume of 500ml, the brewing temperature is 94 degrees Celsius, and the brewing time is 2 to 3 minutes. The mixing speed is 800 RPM, and the mixing time is 5 seconds. The total brewing time is 6 to 7 minutes.

[0064] Example 2 aims to highlight the characteristics of light-roasted coffee beans. Specifically: 31g of coffee beans are added. 300ml of room temperature water is added. The steeping temperature is 40 degrees Celsius, and the steeping time is 3 minutes. The stirring speed is 90 RPM, and the stirring time is 20 seconds. The grinding speed is 1800 RPM, and the vacuum is -80 kPa. Water is added to a final volume of 500ml. The brewing temperature is 96 degrees Celsius, and the brewing time is 1 to 2 minutes. The mixing speed is 800 RPM, and the mixing time is 5 seconds. The total brewing time is 5 to 6 minutes.

[0065] Example 3 aims to highlight the characteristics of medium-roasted coffee beans. Specifically: 31g of coffee beans are added. 300ml of room temperature water is added. The steeping temperature is 40 degrees Celsius, and the steeping time is 4 minutes. The stirring speed is 100 RPM, and the stirring time is 25 seconds. The grinding speed is 1600 RPM, and the vacuum is -80 kPa. Water is added to a final volume of 500ml. The brewing temperature is 94 degrees Celsius, and the brewing time is 1 to 2 minutes. The mixing speed is 800 RPM, and the mixing time is 5 seconds. The total brewing time is 6 to 7 minutes.

[0066] Example 4 aims to highlight the characteristics of dark roast coffee beans. Specifically: 31g of coffee beans are added. 300ml of room temperature water is added. The steeping temperature is 40 degrees Celsius, and the steeping time is 5 minutes. The stirring speed is 100 RPM, and the stirring time is 25 seconds. The grinding speed is 1400 RPM, and the vacuum is -80 kPa. Water is added to a final volume of 500ml. The brewing temperature is 92 degrees Celsius, and the brewing time is 0.5 to 1 minute. The mixing speed is 800 RPM, and the mixing time is 5 seconds. The total brewing time is 6 to 7 minutes.

[0067] Example 5, the objective of which is to maximize flavor extraction. Specifically: 31g of coffee beans are added. 300ml of room temperature water is added. The steeping temperature is 40 degrees Celsius, and the steeping time is 7 minutes. The stirring speed is 110 RPM, and the stirring time is 30 seconds. The grinding speed is 1200 RPM, and the vacuum is -80 kPa. The water volume is increased to 500ml, the brewing temperature is 95 degrees Celsius, and the brewing time is 0.5 to 1 minute. The mixing speed is 800 RPM, and the mixing time is 5 seconds. The total time is 8 to 9 minutes.

[0068] Example 6 aims to simulate the smooth taste of cold brew. Specifically: 31g of coffee beans are added. 300ml of room temperature water is added. The steeping temperature is room temperature, and the steeping time is 10 minutes. The stirring speed is 90 RPM, and the stirring time is 25 seconds. The grinding speed is 1200 RPM, and the vacuum is -80 kPa. Water is added to a final volume of 500ml. The brewing temperature is room temperature, and the brewing time is 1 to 4 minutes. The mixing speed is 800 RPM, and the mixing time is 5 seconds. The total brewing time is 12 to 15 minutes.

[0069] Example 7 aims to obtain a strong and rich coffee liquid. Specifically: 31g of coffee beans are added. 300ml of room temperature water is added. The steeping temperature is 45 degrees Celsius, and the steeping time is 4 minutes. The stirring speed is 100 RPM, and the stirring time is 25 seconds. The grinding speed is 1200 RPM, and the vacuum is -80 kPa. The water volume is increased to 500ml, the brewing temperature is 95 degrees Celsius, and the brewing time is 2 to 3 minutes. The mixing speed is 800 RPM, and the mixing time is 5 seconds. The total time is 7 to 8 minutes.

[0070] Example 8 aims to provide a fully user-customizable brewing process. Specifically: Inject 31g of coffee beans, with each weight increment representing 20% ​​of the total weight, selectable within a 6-level range. Inject 300ml of room temperature water. The default steeping temperature is 40 degrees Celsius but adjustable; the steeping time is selectable from 2 to 10 minutes. The stirring speed is selectable from 50 to 120 RPM; the stirring time is selectable from 20 to 30 seconds. The grinding speed is selectable from 1200 to 1800 RPM; the vacuum is -80 kPa. Add water to 500ml; the brewing temperature is selectable from 90 to 96 degrees Celsius; the brewing time is selectable from 0.5 to 3 minutes. The mixing speed is 800 RPM; the mixing time is 3 to 10 seconds.

[0071] Example 9, which aims to mimic traditional drip filtration. Specifically: 31g of coffee beans are added. 300ml of room temperature water is added. The steeping temperature is 40 degrees Celsius, and the steeping time is 4 minutes. The stirring speed is 100 RPM, and the stirring time is 20 seconds. The grinding speed is 1600 RPM, and the vacuum is -80 kPa. The brewing temperature is 95 degrees Celsius. The mixing speed is 800 RPM, the mixing time is 5 seconds, and the brewing time is 1 to 2 minutes. The total time is 6 to 7 minutes.

[0072] like Figure 2 , 8 As shown in Figure 13, the coffee bean metering structure of the coffee machine of this utility model includes a container assembly 1. The container assembly 1 includes a container 11, a rotating disk 13 and a buffer rack 14 arranged sequentially from top to bottom and coaxial.

[0073] The bottom wall of the container 11 is provided with a plurality of container bottom wall holes 111 evenly distributed around its axis, the rotating disk 13 is provided with a plurality of rotating disk holes 131 evenly distributed around its axis, and the buffer rack 14 is provided with a buffer slot 141.

[0074] The rotating disk 13 has rotational power. For example, the output shaft of a motor is fixedly connected to the rotating disk 13, and the motor drives the rotating disk 13, thus giving the rotating disk 13 rotational power. For example, ... Figure 10 As shown, the container assembly 1 also includes a rotating disk power gear 139 with rotational power. The rotating disk power gear 139 is driven by a motor, which is fixed on the sealing cover 21 described later and fixed relative to the carrier assembly 9. The rotating disk 13 is a gear and its sidewall meshes with the rotating disk power gear 139, thereby enabling the rotating disk 13 to have rotational power, so as to avoid the motor being located at the axial position of the rotating disk 13 and thus limiting the size of the rotating disk hole 131.

[0075] The container 11 is rotatably connected to the rotating disk 13 directly or indirectly. For example, the central shaft 118 of the container 11 is directly embedded in the rotating disk 13, so that the container 11 is directly rotatably connected to the rotating disk 13; or the container 11 is indirectly rotatably connected to the rotating disk 13 through the container base 12 described later.

[0076] The container bottom wall holes 111 are completely offset from the rotating disk holes 131, and the container bottom wall holes 111 can be directly opposite the rotating disk holes 131. It is easy to understand that the number of container bottom wall holes 111 is equal to the number of rotating disk holes 131. For example, there are six container bottom wall holes 111 and six rotating disk holes 131. When viewed from above, one container bottom wall hole 111 is located in the area between two adjacent rotating disk holes 131 and has no overlap with the two rotating disk holes 131. This one container bottom wall hole 111 is completely offset from the rotating disk holes 131. Since the number of container bottom wall holes 111 and rotating disk holes 131 is equal and they are all evenly distributed around the axis of the rotating disk 13, the other container bottom wall holes 111 are also completely offset from the other rotating disk holes 131. When viewed from above, if a container bottom wall hole 111 is completely located at a rotating disk hole 131 (including if the two are completely overlapping), or if a rotating disk hole 131 is completely located at a container bottom wall hole 111, then the container bottom wall hole 111 is directly opposite the rotating disk hole 131; the other container bottom wall holes 111 are directly opposite the other rotating disk holes 131 respectively.

[0077] The bottom surface of the rotating disk 13 is in contact with the top surface of the buffer rack 14, and the rotating disk 13 has a rotating disk hole 131 that is completely located within the buffer slot 141 when viewed from above. For example, when viewed from above, only one rotating disk hole 131 is completely located within the buffer slot 141.

[0078] The working principle is as follows: before use, a large amount of coffee beans are placed into the container 11. The coffee beans are stored and piled up in the container 11. Some of the coffee beans pass through the holes 111 in the bottom wall of the container and enter the rotating disk holes 131 until they are held by the buffer rack 14. It is easy to understand that all the rotating disk holes 131 are filled with coffee beans.

[0079] When a fixed quantity of coffee beans needs to be dispensed, the electronic control device 8 controls the rotating disk 13 (which controls the motor driving the rotating disk power gear 139) to rotate by a set angle. This causes the coffee beans in the rotating disk holes 131 corresponding to the set angle to sequentially pass through the buffer tank 141, and then sequentially fall into the buffer tank 141. For example, if there are six rotating disk holes 131, the central angle between two adjacent rotating disk holes 131 is sixty degrees. The electronic control device 8 controls the rotating disk 13 to rotate by one sixty-degree angle so that the coffee beans in one rotating disk hole 131 fall into the buffer tank 141; the electronic control device 8 controls the rotating disk 13 to rotate by two sixty-degree angles so that the coffee beans in two rotating disk holes 131 fall into the buffer tank 141, and so on. The set rotation angle of the rotating disk 13 allows the corresponding number of coffee beans in the rotating disk holes 131 to fall into the buffer tank 141 for use in the next process.

[0080] After the required number of coffee beans fall into the buffer slot 141, the rotating disk 13 remains in a state where the bottom wall holes 111 of the containers are completely offset from the rotating disk holes 131, and all the bottom wall holes 111 of the containers are closed, isolating the inner cavity of the container 11 from the outside world.

[0081] As can be seen from the above, the coffee bean metering structure of the coffee machine in the embodiment of the present invention can not only output coffee beans in a metered manner, but also ensure that the inner cavity of the container 11 is isolated from the outside world and reduce or prevent the coffee beans in the container 11 from being oxidized.

[0082] As one specific implementation, the container assembly 1 also includes a container base 12 located between the container component 11 and the rotating disk 13. The container base 12 has a number of base holes 121 equal to the number of container bottom wall holes 111. The base holes 121 are evenly distributed around the axis of the container base 12. The bottom end face of the container component 11 is fitted and hinged to the container base 12. For example, a central shaft 118 is fixedly provided on the bottom end face of the container component 11. The central shaft 118 is embedded in the container base 12. A screw is screwed into the bottom end face of the central shaft 118 so that the container component 11 can only rotate relative to the container base 12, but cannot be separated from the container base 12. As mentioned above, the container component 11 is indirectly rotatably connected to the rotating disk 13 through the container base 12. The container bottom wall holes 111 are completely offset from the base holes 121, and the container bottom wall holes 111 can be directly opposite the base holes 121. After the container 11 and container base 12 are removed from the carrier assembly 9, the bottom wall hole 111 of the container is completely offset from the base hole 121. At this time, the bottom wall hole 111 of the container is closed, and the container 11 and container base 12 can be moved to easily fill the container 11 with coffee beans. The operation of filling the container 11 with coffee beans is not limited to the carrier assembly 9.

[0083] As one specific implementation, one of the bottom end face of the container 11 and the container base 12 is provided with a rotation limiting groove 122, and the other is provided with a rotation limiting protrusion 112 that inserts into the rotation limiting groove 122. The states in which the rotation limiting protrusion 112 abuts against the two ends of the rotation limiting groove 122 correspond to the states in which the container bottom wall hole 111 is completely offset from the base hole 121 and the states in which the container bottom wall hole 111 is directly opposite to the base hole 121, respectively. For example, the rotation limiting protrusion 112 is cylindrical, and the rotation limiting groove 122 is annular fan-shaped when viewed from above. When one end of the rotation limiting protrusion 112 abuts against the rotation limiting groove 122, the container bottom wall hole 111 is completely offset from the base hole 121. When the other end of the rotation limiting protrusion 112 abuts against the rotation limiting groove 122, the container bottom wall hole 111 is directly opposite to the base hole 121. It can ensure the rotation angle between the container component 11 and the container base 12, thereby ensuring that the container bottom wall hole 111 is completely offset from the base hole 121 and that the container bottom wall hole 111 is directly opposite to the base hole 121, thus improving reliability.

[0084] As one specific embodiment, the side wall of the container base 12 is provided with a base mounting protrusion 123; the base mounting protrusion 123 is used to achieve a rotatable connection. For example... Figure 2 As shown, the top of the carrier assembly 9 is provided with a container groove 92, and the side wall of the container groove 92 is provided with a base mounting groove 923. The base mounting groove 923 is L-shaped. After the base mounting protrusion 123 is moved downward and slides into the vertical part of the base mounting groove 923, the container base 12 is rotated so that the base mounting protrusion 123 slides into the horizontal part of the base mounting groove 923 until it is abutted by the inner wall of the base mounting groove 923 and can no longer be rotated. The container component 11 and the container base 12 can then be installed on the carrier assembly 9. It should be noted that after the container component 11 and the container base 12 are installed on the carrier assembly 9, the container base 12 is fixed relative to the carrier assembly 9, the buffer rack 14 is fixed relative to the sealing cover 21 and is fixed relative to the carrier assembly 9, and the rotating disk 13 is connected to the container base 12 and the buffer rack 14 through the rotating connection structure 138 and can rotate relative to the carrier assembly 9. The rotating connection structure 138 can be a structure in which a cylinder is embedded in a cylindrical hole, or a structure in which an annular side wall is embedded in a cylindrical hole. This embodiment allows the container base 12 to be easily installed onto the carrier assembly 9.

[0085] As one specific implementation, the rotation direction of one end of the rotation limiting groove 122 corresponding to the state where the container bottom wall hole 111 is completely misaligned with the base hole 121, and the rotation direction of the one end of the rotation limiting groove 122 corresponding to the state where the container bottom wall hole 111 is directly opposite to the base hole 121, is the same as the rotation direction in which the base mounting protrusion 123 rotates to lock the container base 12. Figure 2As shown, the base mounting protrusion 123 is first moved downwards and slid into the vertical part of the base mounting groove 923. Then, the container base 12 is rotated so that the base mounting protrusion 123 slides into the horizontal part of the base mounting groove 923 until it is abutted by the inner wall of the base mounting groove 923 and can no longer be rotated. During this process, the rotation direction of the base mounting protrusion 123 is the rotation direction in which the container base 12 is locked. Continuing to rotate the container part 11 in this direction will change the state in which the container bottom wall hole 111 is completely misaligned with the base hole 121, and the state in which the container bottom wall hole 111 is directly opposite the base hole 121. After the container 11 is rotated in the opposite direction, the container bottom wall hole 111 is in a state where it is directly opposite to the base hole 121, and then the container bottom wall hole 111 is completely offset from the base hole 121. After the base mounting protrusion 123 is moved upward and slides out of the vertical part of the base mounting groove 923, the container 11 and the container base 12 can be removed from the carrier assembly 9 with the container bottom wall hole 111 closed (i.e., the container bottom wall hole 111 is completely offset from the base hole 121). The container bottom wall hole 111 can be closed and opened at the same time as the container 11 and the container base 12 are removed and installed, which facilitates the closing and opening of the container bottom wall hole 111.

[0086] As one specific implementation, the bottom wall of the container 11 is provided with a guide groove 117 that communicates with the top of the bottom wall hole 111. The cross-sectional area (the plane intercepted by the horizontal plane) of the guide groove 117 decreases from top to bottom. After a large number of coffee beans accumulate in the guide groove 117, they tend to move towards the bottom wall hole 111 of the container. This ensures that the bottom wall hole 111, the base hole 121, and the rotating disc hole 131 are all filled with coffee beans, and there are no empty rotating disc holes 131, thereby ensuring the accuracy of coffee bean metering.

[0087] As one specific implementation, the edges of the holes 111 in the bottom wall of the container extend downward to form sealed flanges 113, which respectively fit against the container base 12. This ensures the sealing between the container component 11 and the container base 12, while also ensuring that the container component 11 can rotate smoothly relative to the container base 12.

[0088] As one specific implementation, a container cap 19 is provided at the top of the container 11, which completely covers the top opening of the container 11 to ensure the sealing of the container 11.

[0089] like Figure 5 , 10As shown, the sealing structure of the vacuum coffee machine according to an embodiment of the present invention includes a sealing structure 2; the sealing structure 2 includes a sealing fixed cover 21 and a movable cover 22. The sealing fixed cover 21 has a bean inlet 211; the movable cover 22 has a movable cover hole 221 and a sealing part 222. The movable cover 22 and the sealing fixed cover 21 are linearly slidably connected and have linear power, so that the movable cover hole 221 and the sealing part 222 can be directly aligned with the bean inlet 211. As mentioned above, the sealing fixed cover 21 completely covers the top opening of the integrated container 31. When the movable cover hole 221 is directly aligned with the bean inlet 211, coffee beans in the buffer tank 141 can pass through the movable cover hole 221 and enter the integrated container 31. When the sealing part 222 is directly aligned with the bean inlet 211, the bean inlet 211 is closed, making the internal space of the integrated container 31 sealed. In summary, the sealing structure of the vacuum coffee machine of this utility model embodiment can automatically open and close the bean inlet 211 of the sealing and fixing cover 21, ensuring that the coffee beans are processed in the sealed integrated container 31.

[0090] As one specific implementation, one side of the movable cover 22 is a rack, and the sealing cover 21 is provided with a linear sliding power component 219, which is a gear. The rack meshes with the linear sliding power component 219. The linear sliding power component 219 is driven by a motor (electrically connected to the electronic control device 8) and has rotational power. The rotation of the linear sliding power component 219 causes the movable cover 22 to have linear power. The sealing cover 21 is provided with a position sensor 82 electrically connected to the electronic control device 8. For example, the position sensor 82 is a micro switch. The position of the movable cover 22 when the bean inlet 211 is open and the position of the movable cover 211 when the bean inlet 211 is closed are respectively triggered by the position sensor 82. In conjunction with the motor of the linear sliding power component 219, the bean inlet 211 of the sealing cover 21 can be automatically opened and closed.

[0091] As one specific implementation, the sealing structure 2 also includes a movable cover limiting bracket 23 fixed on the sealing cover 21. The movable cover limiting bracket 23 is provided with a limiting bracket hole 231. The sealing cover 21 is provided with a linear sliding structure 212 with a linear sliding groove. The two sides of the movable cover 22 are respectively attached to the inner walls of the two sides of the linear sliding structure 212. The bottom end face of the movable cover limiting bracket 23 is attached to the movable cover 22, thereby making the movable cover 22 linearly slidingly connected to the sealing cover 21. The movable cover 22 is not easy to fall off the sealing cover 21, which can improve reliability.

[0092] As one specific implementation, movable cover 22 is provided with movable cover protrusions 229 on both sides, and the movable cover protrusions 229 are arranged along the linear dynamic direction of movable cover 22. This can reduce the friction between movable cover 22 and sealing cover 21 and / or movable cover limiting bracket 23, ensuring that movable cover 22 moves smoothly in a straight line.

[0093] As one specific implementation, the bottom end face of the sealing part 222 is provided with a sealing ring 223 that abuts against the sealing and fixing cover 21. The sealing ring 223 is made of rubber or the like and is elastic. When the sealing part 222 is facing the bean inlet 211, the bean inlet 211 is completely located within the sealing ring 223 when viewed from above. This improves the sealing performance between the movable cover 22 and the sealing and fixing cover 21, ensuring that the coffee beans are processed in the sealed integrated container 31.

[0094] As one specific implementation method, the sealing structure 2 also includes a weighing sensor 81, a weighing plate 24, and a weighing frame 25; such as Figure 12 As shown, one end of the load cell 81 is fixed relative to the sealing cover 21, and the other end is fixed to the weighing frame 25. For example, one end of the load cell 81 is fixed to the movable cover limit bracket 23 and fixed relative to the sealing cover 21. The movable cover 22 is provided with a weighing plate moving body 224 that fits against the weighing frame 25. The top of the weighing plate moving body 224 is provided with a weighing plate connecting protrusion 225 that passes through the weighing plate 24. It is easy to understand that the weighing plate connecting protrusion 225 can drive the weighing plate 24 to move with the movable cover 22, but the weighing plate 24 can move up and down along the weighing plate connecting protrusion 225. The weighing frame 25 is provided with a through hole (not shown in the figure). A weighing plate support body 254 is provided around the through hole of the weighing frame 25. When the weighing plate support body 254 supports the weighing plate 24, the through hole of the weighing frame 25 is completely blocked by the weighing plate 24. As the movable cover 22 moves, the weighing plate 24 completely offsets the through hole of the weighing frame 25 from the weighing plate 24, allowing coffee beans to pass through the through hole, the limiting bracket hole 231, and the bean inlet 211 of the weighing frame 25 into the integrated container 31. Both the movable cover limiting bracket 23 and the weighing frame 25 are provided with clearance grooves 249 to allow the weighing plate 224 to pass through. The coffee beans falling on the weighing plate 24 are supported by the weight of the weighing frame 25, enabling the weighing sensor 81 to measure the weight of the weighing frame 25, the weighing plate 24, and the coffee beans. After removing the weight of the weighing frame 25 and the weighing plate 24 to pat the beans, the weight of the coffee beans ready to enter the bean inlet 211 can be obtained, facilitating the confirmation of the quantitative information of the coffee beans. It is easy to understand that in embodiments with a buffer rack 14 and a rotating disk 13, the weight measured by the weighing sensor 81 also includes the weight of both; therefore, the weight of both should also be removed during patting.

[0095] As one of the specific implementation methods, such as Figure 13As shown, the sealing structure 2 also includes a buffer rack 14 with a buffer slot 141. The buffer slot 141 has a through hole in the weighing rack 25. The buffer rack 14 is fixed on the weighing rack 25. The side wall at the bottom end of the buffer slot 141 is in contact with or close to the weighing plate 24. As mentioned earlier, the coffee beans in the container 11 pass through the bottom wall hole 111, the base hole 121, and the rotating disk hole 131 in sequence before entering the buffer slot 141 and accumulating, rather than spreading over a large area. The weighing plate 24 does not need to be set to a large area, but can be set to a smaller area, thereby achieving miniaturization. As the weighing plate 24 moves with the movable cover 22, the coffee beans in the buffer slot 141 are blocked by its inner wall and do not move with the movable cover 22, which can improve reliability.

[0096] As one specific implementation method, the weighing frame 25 is provided with a weighing plate positioning edge 255; the weighing plate positioning edge 255 is in contact with or close to the side of the weighing plate 24. This ensures that the weighing plate 24 moves linearly with the movable cover 22, improving reliability.

[0097] The vacuum mixing structure of this utility model includes a processing structure 3, which includes an integrated container 31, a blade assembly 32, a sealing and fixing cover 21, and a rotary power device 39. The sealing and fixing cover 21 completely covers the top opening of the integrated container 31. The integrated container 31 is provided with a heating device 311, a rotating shaft hole 312, a water inlet 314, an air extraction hole 315, and a bottom outlet 318 (the bottom outlet 318 can be located on the bottom end face of the integrated container 31 or on the bottom of the side wall of the integrated container 31). The water inlet 314 is used to supply water into the integrated container 31, the air extraction hole 315 is used to extract air from the integrated container 31, and the bottom outlet 318 is provided with an outlet valve 38. The blade assembly 32 includes a blade drive shaft 321 and a blade 33 fixed on the blade drive shaft 321. The blade 33 is located inside the integrated container 31, and the bottom end of the blade drive shaft 321 extends out from the rotating shaft hole 312 and is connected to the rotary power end 391 of the rotary power device 39. As mentioned earlier, coffee beans are ground, heated, and extracted in a single sealed space, avoiding or reducing the chance of coffee powder coming into contact with oxygen in the air during transfer between different units. This minimizes oxidation and maximizes the preservation of volatile oils, antioxidants, and enzymes in the coffee powder.

[0098] It should be noted that the vacuum mixing structure of this utility model is not limited to the vacuum mixing of coffee beans and water, but can also be used for the vacuum mixing of almonds, cashews, hazelnuts, walnuts, grains, pumpkin seeds, pecans, pine nuts, peanuts, soybeans, etc., with water. Of course, for embodiments involving almonds, cashews, hazelnuts, walnuts, grains, pumpkin seeds, pecans, pine nuts, peanuts, soybeans, etc., with water, the blade 33 can be adjusted accordingly.

[0099] As one specific embodiment, the blade 33 includes at least one of an upper blade 331, a middle blade 332, and a lower blade 333. Each of the upper blade 331, middle blade 332, and lower blade 333 is provided with a cutting edge 334 and a shaft connecting portion 339. The cross-section of the blade drive shaft 321 is a square, triangle, or other polygonal shape, an ellipse, or a racetrack shape (the shape of the remaining portion between two parallel straight lines after a circle is divided by these lines) and is embedded in the shaft connecting portion 339. This ensures that the blade 33 rotates with the blade drive shaft 321 and also facilitates the assembly of the blade assembly 32.

[0100] As one specific implementation, the blade assembly 32 also includes a positioning sleeve 322, which is fitted snugly on the blade drive shaft 321 and abuts against the blade 33, thereby restricting the axial positioning of the blade 33. This facilitates the assembly of the blade assembly 32.

[0101] As one of the specific implementation methods, such as Figure 16 As shown, both the upper blade 331 and the middle blade 332 are tilted upwards to form an upward tilt angle 336. This ensures that the coffee powder and water are fully mixed.

[0102] As one specific implementation, the blade 334 of the upper blade 331 is provided with cutting teeth 335, the width of which gradually decreases from top to bottom. The tip of the cutting teeth 335 is wider, and after rapidly impacting the coffee beans and crushing them, they move downwards along the gaps between the cutting teeth 335, ensuring that the coffee beans in the upper part of the integrated container 31 are crushed (the coffee beans are cut into relatively large particles).

[0103] As one specific implementation, the shaft connection portion 339 of the lower blade 333 extends downward to form a lower extension body 337. The lower extension body 337 is fixedly connected to the lower blade 333, so that the lower blade 333 is approximately parallel and close to the bottom end face of the integrated container 31. The relatively small coffee particles sink due to their higher density, and together with the bottom end face of the integrated container 31, they produce a shearing effect, thereby improving the grinding effect of coffee (coffee beans are cut into relatively small particles).

[0104] As one of the specific implementation methods, such as Figure 18 As shown, a shaft seal 328 and a bearing 329 are arranged sequentially from top to bottom inside the rotating shaft hole 312; this ensures the stability of the blade drive shaft 321 when it rotates, and also reduces the minute gap changes between the blade drive shaft 321 and the shaft seal 328 when it rotates, ensuring the sealing between the integrated container 31 and the rotating shaft hole 312.

[0105] The terms used in this invention, such as "first," "second," etc., do not indicate any order, quantity, or importance, but are merely for distinction.

[0106] In this invention, terms such as "a" or "an" are used to indicate not a limitation on the quantity, but rather to indicate the existence of at least one of the mentioned objects.

[0107] In this utility model, terms indicating direction or location such as top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, and below are used to indicate relative positions rather than absolute positions.

[0108] Terms used in this invention, such as "approximately," "generally," "approximately," and "similar," are limiting terms used to indicate features that are present but allow for certain deviations. The amount of deviation allowed may vary depending on the specific context; for example, regarding dimensional deviations, the specific context may include, but is not limited to, relevant standards for dimensional tolerances.

Claims

1. A coffee bean metering structure for a coffee machine, comprising a container assembly (1), the container assembly (1) comprising a container piece (11), a rotating disk (13), and a buffer rack (14) arranged sequentially from top to bottom and coaxial. Its characteristics are, The bottom wall of the container (11) is provided with a plurality of container bottom wall holes (111) evenly distributed around its axis, the rotating disk (13) is provided with a plurality of rotating disk holes (131) evenly distributed around its axis, and the buffer rack (14) is provided with a buffer slot (141); the rotating disk (13) has rotational power; the container (11) is directly or indirectly rotatably connected to the rotating disk (13), the container bottom wall holes (111) are completely offset from the rotating disk holes (131), and the container bottom wall holes (111) can be directly opposite to the rotating disk holes (131); the bottom end face of the rotating disk (13) is in contact with the top end face of the buffer rack (14), and the rotating disk (13) has rotating disk holes (131) that are completely located in the buffer slot (141) when viewed from above.

2. The coffee bean metering structure of the coffee machine according to claim 1, characterized in that, The container assembly (1) also includes a container base (12) located between the container component (11) and the rotating disk (13). The container base (12) is provided with a number of base holes (121) equal to the number of container bottom wall holes (111). The base holes (121) are evenly distributed around the axis of the container base (12). The bottom end face of the container component (11) is in contact with and hinged to the container base (12). The container bottom wall holes (111) are completely offset from the base holes (121), and the container bottom wall holes (111) can be directly opposite the base holes (121).

3. The coffee bean metering structure of the coffee machine according to claim 2, characterized in that, The bottom end face of the container (11) and the container base (12) are provided with a rotation limiting groove (122) and the other is provided with a rotation limiting protrusion (112) that is inserted into the rotation limiting groove (122). The states in which the rotation limiting protrusion (112) abuts against the two ends of the rotation limiting groove (122) correspond to the states in which the bottom wall hole (111) of the container is completely offset from the base hole (121) and the states in which the bottom wall hole (111) of the container is directly opposite to the base hole (121).

4. The coffee bean metering structure of the coffee machine according to claim 3, characterized in that, The side wall of the container base (12) is provided with a base mounting protrusion (123).

5. The coffee bean metering structure of the coffee machine according to claim 4, characterized in that, The rotation direction of one end of the rotation limiting groove (122) corresponding to the state where the bottom wall hole (111) of the container is completely offset from the base hole (121), and the rotation direction of one end of the rotation limiting groove (122) corresponding to the state where the bottom wall hole (111) of the container is directly opposite to the base hole (121), are the same as the rotation direction of the base mounting protrusion (123) that rotates to lock the container base (12).

6. The coffee bean metering structure of the coffee machine according to claim 1, characterized in that, The bottom wall of the container (11) is provided with a guide groove (117) that communicates with the top of the bottom wall hole (111) of the container. The cross-sectional area of ​​the guide groove (117) decreases from top to bottom.

7. The coffee bean metering structure of the coffee machine according to claim 1, characterized in that, The edges of the holes (111) on the bottom wall of the container extend downward to form closed flanges (113), and the flanges (113) are respectively attached to the container base (12).

8. The coffee bean metering structure of the coffee machine according to claim 1, characterized in that, The top of the container (11) is provided with a container cap (19), which completely covers the top opening of the container (11).

9. The coffee bean metering structure of the coffee machine according to claim 1, characterized in that, The container assembly (1) also includes a rotating disk power gear (139) with rotational power, wherein the rotating disk (13) is a gear and its sidewall meshes with the rotating disk power gear (139).

Images