Coffee brewing device and coffee machine

Abstract

The utility model provides a coffee brewing device and a coffee machine, and relates to the technical field of coffee making. The coffee brewing device comprises a dripping disc, a cup body and a filtering assembly, wherein the dripping disc is detachably connected with the cup body; the cup body comprises a containing cavity, a first opening and a second opening. The first opening and the second opening are located in the two ends of the containing cavity. Wherein the drip tray is used for covering the first opening; a supporting structure is arranged in the containing cavity and used for supporting the filtering assembly. A powder cavity used for containing coffee powder is formed between the filtering assembly and the first opening. The filtering assembly is arranged in the containing cavity in a sliding mode, and the filtering assembly is used for sliding relative to the containing cavity so that the coffee powder can be pushed out of the first opening by the filtering assembly. The pressed powder is cleaned out of the cup body in a push-out mode, so that the device is not deformed or damaged, and regular and complete pressed powder can be obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coffee making, and particularly relates to a coffee brewing device and a coffee machine. BACKGROUND

[0002] The coffee machine is a device for making coffee, and the coffee machine can greatly shorten the making time of coffee. When making coffee, coffee powder is first filled in a powder cup of a brewing device and is pressed into a powder cake, then the brewing device is assembled with a coffee machine body, and hot water in the coffee machine body is used to extract the coffee powder under high temperature and high pressure, so as to produce concentrated coffee liquid.

[0003] After the coffee is made, the brewing assembly is separated from the coffee machine body, and the powder cake filled in the brewing assembly is cleaned. Since the powder cake is tightly pressed in the powder cup, the powder cake is cleaned by knocking the brewing assembly or stirring the powder cake.

[0004] However, the above-mentioned cleaning method of the powder cake has the following disadvantages:

[0005] 1. The knocking is easy to cause deformation or damage of the brewing assembly;

[0006] 2. The coffee powder cake forming integrity is an index for evaluating the quality of coffee, and the knocking of the brewing assembly or the stirring of the powder cake is easy to damage the shape and integrity of the powder cake, so that a regular and complete powder cake cannot be obtained. Invention content

[0007] The present application aims to overcome the defects of the prior art, and provides a coffee brewing device and a coffee machine to solve the problems in the prior art.

[0008] To solve the above-mentioned problems, a coffee brewing device is provided in the first aspect of the present application, which comprises a drip tray, a cup body and a filter assembly, the drip tray is detachably connected with the cup body;

[0009] The cup body comprises a containing cavity, a first opening and a second opening, the first opening and the second opening are located at two ends of the containing cavity; wherein the drip tray is used to cover the first opening;

[0010] A supporting structure is arranged in the containing cavity, and the supporting structure is used to support the filter assembly; a powder cavity for containing coffee powder is formed between the filter assembly and the first opening;

[0011] The filter assembly is slidably arranged in the containing cavity, wherein the filter assembly is used to slide relative to the containing cavity, so that the coffee powder can be pushed out of the first opening by the filter assembly.

[0012] In a possible implementation, the cup body comprises an outer cup and an inner cup, and the drip tray comprises a tray body, which is detachably connected with the outer cup;

[0013] The outer cup comprises a cup opening and a receiving cavity, and the cup opening is located at one end of the receiving cavity, wherein the inner cup is detachably arranged in the receiving cavity; and the tray body is used for covering the cup opening;

[0014] The receiving cavity is arranged inside the inner cup, the first opening is located at the top of the inner cup, and the second opening is located at the bottom of the inner cup.

[0015] In a possible implementation, the drip tray further comprises a cup cover, and the tray body and the cup cover are in a split structure;

[0016] The cup cover is detachably connected with the inner cup, the cup cover is used for covering the first opening, and the cup cover is in sealing cooperation with the inner cup; wherein the cup cover is located between the tray body and the inner cup, and the tray body abuts against the cup cover;

[0017] A flow-through hole is formed in the cup cover, and the flow-through hole is in communication with the receiving cavity.

[0018] In a possible implementation, an annular connecting groove is arranged on the outer wall of the inner cup, and the connecting groove is arranged along the circumference of the inner cup;

[0019] A first sealing ring is arranged in the connecting groove, and the first sealing ring is used for sealing cooperation with the cup cover.

[0020] In a possible implementation, an annular mounting groove is arranged at the bottom of the inner cup, and the mounting groove surrounds the second opening;

[0021] A sealing gasket is arranged in the mounting groove, and the sealing gasket is used for sealing cooperation with the bottom of the receiving cavity.

[0022] In a possible implementation, an inner thread is arranged on the inner wall of the drip tray; an outer thread corresponding to the inner thread is arranged on the outer wall of the cup body; and the drip tray is threadedly connected with the cup body.

[0023] In a possible implementation, the receiving cavity comprises a first cylindrical cavity and a second cylindrical cavity which are coaxially arranged and in communication with each other, the inner diameter of the first cylindrical cavity is greater than the inner diameter of the second cylindrical cavity; the first opening is arranged at the top of the first cylindrical cavity, and the second opening is arranged at the bottom of the second cylindrical cavity;

[0024] The support structure comprises the bottom surface of the first cylindrical cavity.

[0025] In a possible implementation, the filter assembly comprises a connecting frame and a filter screen; the connecting frame comprises a mounting table and a base; the mounting table and the base are connected and coaxially arranged, and both are in a cylindrical shape; a liquid discharge through hole is arranged on the connecting frame;

[0026] The mounting table is used for being mounted in the first cylindrical cavity, the base is used for being mounted in the second cylindrical cavity, and the base is in sealing cooperation with the inner wall of the second cylindrical cavity;

[0027] The filter screen is mounted on the mounting table.

[0028] In a possible implementation, an assembly groove is arranged on the outer wall of the base, and the assembly groove is arranged around the circumference of the base;

[0029] A second sealing ring is arranged in the assembly groove, and the second sealing ring is in sealing cooperation with the inner wall of the second cylindrical cavity.

[0030] The second aspect of the embodiments of the present application provides a coffee machine, comprising a body and a coffee brewing device as described above; the body comprises a water outlet, wherein the coffee brewing device is detachably connected with the water outlet.

[0031] The beneficial effects of the present application include:

[0032] The coffee brewing device provided by the present application comprises a drip tray, a cup body and a filter assembly, and the drip tray is detachably connected with the cup body. The cup body comprises a containing cavity, a first opening and a second opening, and the first opening and the second opening are located at two ends of the containing cavity, wherein the drip tray is used for being covered on the first opening.

[0033] Coffee powder is filled into a powder cavity between the filter assembly and the first opening through the first opening, and a powder cake is formed after being pressed. In the process of pressing, a supporting structure in the containing cavity supports the filter assembly. After the pressing of the powder cake is completed, the drip tray is covered on the first opening.

[0034] After the coffee making is completed, the drip tray is removed, and then the filter assembly can be pushed by hand or a tool through the second opening to slide towards the first opening. In the process of moving the filter assembly, the powder cake is pushed to move synchronously. When the filter assembly is pushed to slide a certain distance relative to the cup body, the powder cake is pushed out of the first opening. In the process of pushing out the powder cake, the powder cake is not vibrated or stirred, so that the powder cake can maintain integrity and maintain the initial shape.

[0035] The powder cake is cleaned out of the cup body by pushing, so that the device will not be deformed or damaged, and a regular and complete powder cake can be obtained. BRIEF DESCRIPTION OF DRAWINGS

[0036] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 An explosion diagram of the coffee brewing device in Embodiment 1 is shown;

[0038] Figure 2 A cross-sectional view of the coffee brewing device in Embodiment 1 is shown;

[0039] Figure 3 A schematic diagram of an inner cup is shown;

[0040] Figure 4 A schematic diagram showing the connection between the inner cup and the lid is shown;

[0041] Figure 5 This diagram illustrates a pressed powder being pushed out of its inner cup;

[0042] Figure 6 A schematic diagram of a connecting bracket is shown;

[0043] Figure 7 A schematic diagram of a filter screen is shown;

[0044] Figure 8 A schematic diagram of a coffee machine is shown;

[0045] Figure 9 A schematic diagram of the coffee brewing device in Embodiment 2 is shown;

[0046] Figure 10 It shows Figure 9 A schematic diagram of an explosion of a coffee brewing device;

[0047] Figure 11 It shows Figure 9 A cross-sectional view of a coffee brewing device in a container;

[0048] Figure 12 This diagram illustrates how a pressed powder can be pushed out of a cup.

[0049] Explanation of key component symbols:

[0050] 10 - coffee brewing device; 11 - powder cake; 100 - drip tray; 101 - internal thread; 110 - disc body; 120 - cup cover; 200 - cup body; 201 - containing cavity; 2011 - support structure; 2012 - first cylindrical cavity; 2013 - second cylindrical cavity; 202 - first opening; 203 - second opening; 204 - powder cavity; 205 - external thread; 210 - outer cup; 211 - cup mouth; 212 - containing cavity; 220 - inner cup; 221 - connecting groove; 222 - first sealing ring; 223 - mounting groove; 224 - sealing gasket; 300 - filter assembly; 301 - liquid discharge through hole; 310 - connecting frame; 311 - mounting table; 3111 - recessed cavity; 3112 - support protrusion; 3113 - positioning structure; 312 - base; 3121 - assembly groove; 3122 - second sealing ring; 320 - filter screen; 321 - matching structure; 400 - handle; 500 - body; 510 - water outlet; 520 - water tank; 530 - water pump; 540 - heating cavity. DETAILED DESCRIPTION

[0051] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary, only for explaining the present application, and cannot be understood as limiting the present application.

[0052] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0053] Embodiment one

[0054] Reference Figures 1-5 In this embodiment, a coffee brewing device 10 is proposed, comprising a drip tray 100, a cup body 200 and a filter assembly 300, the drip tray 100 is detachably connected with the cup body 200.

[0055] The cup body 200 comprises a containing cavity 201, a first opening 202 and a second opening 203, the first opening 202 and the second opening 203 are located at both ends of the containing cavity 201. Among them, the drip tray 100 is used to cover the first opening 202.

[0056] The filter assembly 300 is slidably disposed within the receiving cavity 201, and a support structure 2011 is provided within the receiving cavity 201 to support the filter assembly 300. A powder cavity 204 for receiving coffee powder is formed between the filter assembly 300 and the first opening 202.

[0057] The filter assembly 300 is slidably disposed within the receiving cavity 201, wherein the filter assembly 300 is slidable relative to the receiving cavity 201 so that coffee powder can be pushed out by the filter assembly 300 from the first opening 202.

[0058] In this embodiment, the cup body 200 includes an outer cup 210 and an inner cup 220, and the drip tray 100 includes a tray body 110, which is detachably connected to the outer cup 210.

[0059] The outer cup 210 includes a cup opening 211 and a receiving cavity 212. The cup opening 211 is located at one end of the receiving cavity 212. The inner cup 220 is detachably disposed in the receiving cavity 212, and the plate body 110 is used to cover the cup opening 211. The inner cup 220 is inserted into or removed from the receiving cavity 212 through the cup opening 211.

[0060] like Figure 3 As shown, the receiving cavity 201 is disposed inside the inner cup 220, the first opening 202 is located at the top of the inner cup 220, and the second opening 203 is located at the bottom of the inner cup 220.

[0061] In this embodiment, the drip tray 100 also includes a cup lid 120, wherein the tray body 110 and the cup lid 120 are separate structures.

[0062] Refer to 3 and Figure 4 The cup lid 120 is detachably connected to the inner cup 220. The cup lid 120 is used to cover the first opening 202, and the cup lid 120 and the inner cup 220 are sealed together. The cup lid 120 is located between the plate body 110 and the inner cup 220, and the plate body 110 and the cup lid 120 abut against each other.

[0063] Reference Figure 2 and Figure 5Before the coffee is made, the filter assembly 300 is installed in the accommodating cavity 201 of the inner cup 220, and then coffee powder is filled into the inner cup 220 through the first opening 202, wherein the coffee powder is compressed and a powder cake 11 is formed; then the cup cover 120 is capped on the first opening 202; the inner cup 220 is placed into the accommodating cavity 212 of the outer cup 210 through the cup opening 211; then the disc body 110 is installed on the outer cup 210, and since the disc body 110 abuts against the cup cover 120, the disc body 110 will exert a pressure on the cup cover 120, and at the same time the cup cover 120 exerts a corresponding force on the inner cup 220, so that the bottom of the inner cup 220 abuts against the bottom of the accommodating cavity 212, thereby keeping the cup cover 120 and the inner cup 220 relatively fixed and ensuring that the inner cup 220 is fixed in the accommodating cavity 212.

[0064] When the coffee making is completed, the disc body 110 on the outer cup 210 is disassembled, and the inner cup 220 is taken out of the outer cup 210; then the cup cover 120 is removed from the inside; then the filter assembly 300 can be pushed by hand or a tool through the second opening 203, so that the filter assembly 300 slides towards the first opening 202. During the movement of the filter assembly 300, the powder cake 11 is pushed to move synchronously; when the filter assembly 300 is pushed to slide a certain distance relative to the cup body 200, the powder cake 11 is pushed out of the first opening 202.

[0065] During the pushing of the powder cake 11, the powder cake 11 is not subjected to vibration or stirring, so that the powder cake 11 can maintain integrity and maintain the initial shape. Since the complete powder cake 11 can be obtained, it is beneficial to evaluate and judge the coffee making.

[0066] Since the cleaning of the powder cake 11 is realized by pushing, the knocking method is no longer needed, thereby achieving the purpose of protecting the coffee brewing device 10, effectively prolonging the service life of the coffee brewing device 10, and avoiding deformation or damage of the coffee brewing device 10 due to knocking.

[0067] The cup cover 120 is provided with a flow-through hole, which is in communication with the accommodating cavity 201. During the coffee making, high-temperature and high-pressure water flows into the cup body 200 through the drip tray 100, and then flows into the accommodating cavity 201 through the flow-through hole on the cup cover 120, thereby realizing the extraction of the coffee powder and generating coffee liquid; the coffee liquid is discharged through the second opening 203 and the hole or gap at the bottom of the outer cup 210.

[0068] As Figure 3 and Figure 5As shown, the outer wall of the inner cup 220 is provided with an annular connecting groove 221, which is arranged along the circumference of the inner cup 220. The first sealing ring 222 is arranged in the connecting groove 221, and is used for sealing cooperation with the cup cover 120. Further, the bottom of the inner cup 220 is provided with an annular mounting groove 223, which is arranged around the second opening 203. The annular sealing gasket 224 is arranged in the mounting groove 223, and is used for sealing cooperation with the bottom of the accommodating cavity 212.

[0069] In the embodiment, the inner wall of the drip tray 100 is provided with an internal thread 101, and the outer wall of the cup body 200 is provided with an external thread 205 corresponding to the internal thread 101. The drip tray 100 is threadedly connected with the cup body 200.

[0070] Specifically, the internal thread 101 is arranged on the inner wall of the disc body 110, and the external thread 205 is arranged on the outer wall of the outer cup 210.

[0071] As shown in the drawings, Figure 3 The accommodating cavity 201 includes a first cylindrical cavity 2012 and a second cylindrical cavity 2013 coaxially arranged and in communication with each other, and the inner diameter of the first cylindrical cavity 2012 is greater than that of the second cylindrical cavity 2013. The first opening 202 is arranged at the top of the first cylindrical cavity 2012, and the second opening 203 is arranged at the bottom of the second cylindrical cavity 2013. The powder cavity 204 is located inside the first cylindrical cavity 2012.

[0072] The support structure 2011 includes the bottom surface of the first cylindrical cavity 2012. When the filter assembly 300 is placed in the accommodating cavity 201, the filter assembly 300 can be supported and positioned by the support structure 2011.

[0073] As shown in the drawings, Figure 6 and Figure 7 In the embodiment, the filter assembly 300 includes a connecting frame 310 and a filter screen 320, and the connecting frame 310 includes a mounting table 311 and a base 312.

[0074] The mounting table 311 and the base 312 are connected and coaxially arranged, and both are in the shape of a cylinder. The outer diameter of the mounting table 311 is greater than that of the base 312. The connecting frame 310 is provided with a drainage through hole 301, which penetrates the mounting table 311 and the base 312. The drainage through hole 301 can be a stepped hole or a straight hole.

[0075] The mounting table 311 is used for mounting in the first cylindrical cavity 2012, and the base 312 is used for mounting in the second cylindrical cavity 2013, and the base 312 is in sealing cooperation with the inner wall of the second cylindrical cavity 2013.

[0076] The outer wall of the base 312 is provided with an assembly groove 3121, which is arranged around the circumference of the base 312. The assembly groove 3121 is provided with a second sealing ring 3122, which is in sealing cooperation with the inner wall of the second cylindrical cavity 2013. The second sealing ring 3122 can play a sealing role, which can ensure that the liquid (including water and coffee liquid) flows out from the liquid discharge through hole 301 after passing through the filter screen 320, and will not leak from the gap between the base 312 and the second cylindrical cavity 2013.

[0077] The filter screen 320 is installed on the mounting table 311.

[0078] As shown in Figure 6 , the end of the mounting table 311 away from the base 312 is provided with a concave cavity 3111, and the concave cavity 3111 is provided with a support protrusion 3112 for supporting the filter screen 320. The support protrusion 3112 has a plurality of intervals between any two adjacent support protrusions 3112, thereby ensuring that the coffee liquid can flow and discharge smoothly without being blocked.

[0079] The cross-sectional shape of the support protrusion 3112 can adopt a circular arc shape, a polygonal shape, a circular shape, an elliptical shape, etc. The number of support protrusions 3112 can be set as needed, but it is necessary to ensure that the filter screen 320 can be stably supported to avoid displacement or deformation of the filter screen 320 due to pressure. The height of the support protrusion 3112 can be the same as the depth of the concave cavity 3111.

[0080] In this embodiment, the cross-sectional shape of the support protrusion 3112 is a circular arc shape, and a certain number of support protrusions 3112 are distributed in the radial direction of the concave cavity 3111 and parallel to the circumference of the concave cavity 3111.

[0081] As shown in Figure 6 and Figure 7 , the mounting table 311 is provided with a positioning structure 3113, and the filter screen 320 is provided with a cooperating structure 321 corresponding to the positioning structure 3113. The positioning structure 3113 is used to cooperate with the corresponding cooperating structure 321 to position the filter screen 320. Under the cooperation of the positioning structure 3113 and the cooperating structure 321, the positioning of the filter screen 320 on the mounting table 311 is realized.

[0082] In the positioning structure 3113 and the cooperating structure 321, one is a groove body and the other is a column body, wherein the column body is used for inserting into the groove body.

[0083] The positioning structure 3113 can be arranged in the cavity 3111, and the cooperating structure 321 can be arranged on the outer periphery of the filter screen 320. The cooperating structure 321 can be arranged in an annular array about the center of the filter screen 320. The positioning structure 3113 is fixedly connected with the cooperating structure 321. The positioning structure 3113 and the cooperating structure 321 can be fixedly connected by using a fixing mode such as welding, soldering or bonding according to the materials of the mounting table 311 and the filter screen 320.

[0084] As shown in Figure 8 In this embodiment, a coffee machine is also provided, which comprises a body 500 and the coffee brewing device 10 mentioned above. The body 500 comprises a water outlet 510, and the coffee brewing device 10 is detachably connected with the water outlet 510.

[0085] The body 500 is provided with a water tank 520, and the body 500 is internally provided with a water pump 530 and a heating cavity 540. The heating cavity 540 is provided with a heating device. The water tank 520 and the water pump 530 are connected by a corresponding pipeline, and the water pump 530 and the heating cavity 540 are also connected by a corresponding pipeline. Figure 8 In this embodiment, in order to facilitate observation, the water pump 530 and the heating cavity 540 are treated with perspective.

[0086] In the process of making coffee, the coffee brewing device 10 filled with coffee powder is mounted on the water outlet 510. The drip tray 100 of the coffee brewing device 10 is connected with the water outlet 510 by means of clamping or the like. The water pump 530 is used to pump the water in the water tank 520 to the heating cavity 540, so as to heat the water. At the same time, the pressure provided by the water pump 530 is used to deliver the hot water in the heating cavity 540 to the water outlet 510. The high-temperature and high-pressure water flows into the cup body 200 through the water outlet 510, and the coffee powder is extracted by the high-temperature and high-pressure water, so as to produce concentrated coffee liquid.

[0087] Embodiment Two

[0088] The main difference between this embodiment and the first embodiment is the drip tray 100 and the cup body 200. The filter assembly 300 and the containing cavity 201 can be referred to the first embodiment, and will not be described herein.

[0089] As shown in Figures 9-12 In this embodiment, the drip tray 100 and the cup body 200 are an integral structure. The drip tray 100 is connected with the cup body 200, and the drip tray 100 covers the first opening 202 of the cup body 200. The containing cavity 201 penetrates through the cup body 200.

[0090] Referring to Figures 11-12When it is necessary to clean the powder compact 11 in the accommodating cavity 201, the drip tray 100 is detached from the cup body 200, and then the filter assembly 300 can be pushed by hand or a tool through the second opening 203, so that the filter assembly 300 slides towards the first opening 202. During the movement of the filter assembly 300, the powder compact 11 is pushed to move synchronously; when the filter assembly 300 is pushed to slide a certain distance relative to the cup body 200, the powder compact 11 is pushed out of the first opening 202.

[0091] In the present embodiment, the drip tray 100 is provided with a handle 400, wherein the handle 400 is used for the user to hold.

[0092] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0093] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A coffee brewing device, characterized in that, The drip tray (100) is detachably connected with the cup body (200); The cup body (200) comprises a containing cavity (201), a first opening (202) and a second opening (203), and the first opening (202) and the second opening (203) are located at two ends of the containing cavity (201); wherein the drip tray (100) is used for covering the first opening (202); The containing cavity (201) is provided with a support structure (2011) for supporting the filter assembly (300); and a powder cavity (204) for containing coffee powder is formed between the filter assembly (300) and the first opening (202). The filter assembly (300) is slidably arranged in the containing cavity (201), wherein the filter assembly (300) is used for sliding relative to the containing cavity (201) so that the coffee powder can be pushed out of the first opening (202) by the filter assembly (300).

2. The coffee brewing device of claim 1, wherein, The cup body (200) comprises an outer cup (210) and an inner cup (220), and the drip tray (100) comprises a tray body (110) which is detachably connected with the outer cup (210); The outer cup (210) comprises a cup mouth (211) and a containing cavity (212), and the cup mouth (211) is located at one end of the containing cavity (212), wherein the inner cup (220) is detachably arranged in the containing cavity (212); and the tray body (110) is used for covering the cup mouth (211); The containing cavity (201) is arranged inside the inner cup (220), the first opening (202) is located at the top of the inner cup (220), and the second opening (203) is located at the bottom of the inner cup (220).

3. The coffee brewing device of claim 2, wherein, The drip tray (100) further comprises a cup cover (120), and the tray body (110) and the cup cover (120) are in a split structure; The cup cover (120) is detachably connected with the inner cup (220), the cup cover (120) is used for covering the first opening (202), and the cup cover (120) is in sealing cooperation with the inner cup (220); wherein the cup cover (120) is located between the tray body (110) and the inner cup (220), and the tray body (110) abuts against the cup cover (120); A flow-through hole is formed in the cup cover (120), and the flow-through hole is in communication with the containing cavity (201).

4. The coffee brewing device of claim 3, wherein, An annular connecting groove (221) is arranged on the outer wall of the inner cup (220), and the connecting groove (221) is arranged along the circumference of the inner cup (220); A first sealing ring (222) is arranged in the connecting groove (221), and the first sealing ring (222) is used for sealing cooperation with the cup cover (120).

5. The coffee brewing device of claim 3, wherein, The bottom of the inner cup (220) is provided with an annular mounting groove (223) which is arranged around the second opening (203); A sealing gasket (224) is arranged in the mounting groove (223) and is used for sealingly cooperating with the bottom of the accommodating cavity (212).

6. The coffee brewing device according to any one of claims 1-5, wherein, The inner wall of the drip tray (100) is provided with an inner thread (101), and the outer wall of the cup body (200) is provided with an outer thread (205) corresponding to the inner thread (101); wherein the drip tray (100) and the cup body (200) are threadedly connected.

7. The coffee brewing device according to any one of claims 1-5, wherein, The accommodating cavity (201) comprises a first cylindrical cavity (2012) and a second cylindrical cavity (2013) which are coaxially arranged and in communication with each other, the inner diameter of the first cylindrical cavity (2012) is greater than that of the second cylindrical cavity (2013); the first opening (202) is arranged at the top of the first cylindrical cavity (2012), and the second opening (203) is arranged at the bottom of the second cylindrical cavity (2013). The support structure (2011) comprises the bottom surface of the first cylindrical cavity (2012).

8. The coffee brewing device according to claim 7, wherein, The filter assembly (300) comprises a connecting frame (310) and a filter screen (320); the connecting frame (310) comprises a mounting table (311) and a base (312); the mounting table (311) and the base (312) are connected and coaxially arranged, and both are in the shape of a cylinder; a drainage through hole (301) is arranged on the connecting frame (310); The mounting table (311) is used for being mounted in the first cylindrical cavity (2012), and the base (312) is used for being mounted in the second cylindrical cavity (2013), and the base (312) sealingly cooperates with the inner wall of the second cylindrical cavity (2013); The filter screen (320) is mounted on the mounting table (311).

9. The coffee brewing device according to claim 8, wherein, An assembly groove (3121) is arranged on the outer wall of the base (312) and surrounds the circumference of the base (312); A second sealing ring (3122) is arranged in the assembly groove (3121) and sealingly cooperates with the inner wall of the second cylindrical cavity (2013).

10. A coffee maker characterized in that, The coffee brewing device (10) according to any one of claims 1-9; and a body (500) comprising a water outlet (510), wherein the coffee brewing device (10) is detachably connected to the water outlet (510).

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