Replaceable all-in-one coffee machine brewing device

Abstract

The utility model relates to a replaceable all-in-one coffee machine brewing device which aims at solving the technical problems that funnels of existing similar coffee machine products are single in use mode, difficult to be matched with different brewing systems, relatively complex in operation and particularly difficult to be matched with a coffee powder dripping mode and a capsule brewing mode at the same time. The brewing device comprises a high-pressure sealing brewing assembly and a funnel brewing assembly, and is characterized in that the high-pressure sealing brewing assembly comprises a brewing main support, a fixing support, a water distribution filter screen and corresponding screws, and three through holes are formed in the inner bottom of a funnel body of the funnel brewing assembly side by side; the funnel bottom corresponding to the through hole is provided with a linear protrusion, the inner bottom of the funnel body is provided with funnel silica gel with the corresponding shape, the diameter of the through hole in the center of the funnel silica gel is larger than that of the same through holes in the two sides, a protruding flow guide rib is arranged at an opening in the top of the funnel silica gel, and a flow guide notch is formed in the flow guide rib. And a convex column is arranged at a through hole in the middle of the bottom in the funnel silica gel.

Description

Technical Field

[0001] The utility model relates to a coffee machine funnel, which is a replaceable all-in-one coffee machine brewing device. Background Art

[0002] A coffee machine is an electrical device used for making coffee, generally categorized as semi-automatic or fully automatic. Semi-automatic machines require manual operation for grinding, tamping, filling, brewing, and removing grounds. Fully automatic machines, on the other hand, automate the entire coffee brewing process, including preheating, cleaning, grinding, tamping, brewing, and draining. They brew coffee according to scientific data and procedures, delivering coffee at the touch of a button. Some semi-automatic machines require a funnel with a handle to achieve the espresso extraction function. With the improvement of people's quality of life and the popularization of coffee culture, the demand for coffee machine functions is becoming increasingly diverse. Traditional coffee machines often have a single function and can only brew coffee in a single mode. To brew different types of coffee, consumers need to purchase two different types of coffee machines. This makes it impossible for consumers to extract different types of coffee from a single machine, resulting in higher costs. For example, the application number 202420054167.5 disclosed in the Chinese patent document, the authorization announcement date is 2024.10.01, and the utility model name is "Capsule coffee machine funnel handle"; another example is the application number 202180071496.X disclosed in the Chinese patent document, the application publication date is 2023.06.23, and the invention name is "Coffee grinding device including scattered detachable accessories for accommodating coffee powder"; but the traditional coffee powder Italian and capsule Italian brewing in the above products and similar products are difficult to match different brewing systems, and the operation is relatively complicated; therefore, the market urgently needs a brewing system that is integrated and compatible with multiple different types of Italian coffee machines to improve user experience and convenience. Summary of the Invention

[0003] To overcome the aforementioned shortcomings, the present invention aims to provide a replaceable all-in-one coffee brewing device to the art. This device addresses the technical issues of existing similar coffee machines, such as the limited use of the funnel, the difficulty in adapting to different brewing systems, the relatively complex operation, and, in particular, the difficulty in adapting to both drip coffee and capsule brewing. This objective is achieved through the following technical solution.

[0004] A replaceable all-in-one coffee machine brewing device, which includes a high-pressure sealed brewing component and a funnel brewing component. The funnel brewing component is locked to the buckle rib on the inner diameter of the bottom hole of the brewing main bracket of the high-pressure sealed brewing component through the buckle edge raised at the funnel mouth on the top of the funnel body. The outer diameter of the top hole of the brewing main bracket of the high-pressure sealed brewing component is provided with equidistantly distributed mounting ears, and the funnel body is provided at one end of the handle of the funnel brewing component. The key point of its structural design is that a fixed bracket is provided on the top of the brewing main bracket of the high-pressure sealed brewing component, and a notch is provided at one end of the annular fixed bracket, and the bracket is installed into the opposite sides of the liquid inlet hole on the top of the brewing main bracket through mounting screws. The bottom of the brewing main bracket is provided with a water-dividing filter fixed to the central boss in the bottom hole by fixing screws, and the liquid outlet is provided on one side of the water-dividing filter of the central boss. The raised outer diameter groove at the bottom of the brewing main bracket is provided with brewing sealing silicone. The bottom of the funnel body of the funnel brewing assembly is provided with three through holes arranged side by side. The bottom of the funnel corresponding to the through holes is provided with a straight-shaped protrusion. The bottom of the funnel body is provided with funnel silicone of the corresponding shape. The diameter of the through hole at the center of the funnel silicone is larger than the diameter of the same through holes on both sides. The top opening of the funnel silicone is provided with a raised guide rib, and a guide notch is provided at the guide rib. The through hole in the middle of the bottom of the funnel silicone is provided with a protruding column. The funnel silicone at the bottom of the funnel body of the above-mentioned funnel brewing assembly improves the sealing performance of the funnel body, while the guide rib at the top opening facilitates the collection and outflow of internal liquid.

[0005] The funnel brewing assembly has a flip-up locking plate on the handle of the funnel body. One end of the locking plate is hingedly fixed to the gusset plate slot on the handle, and the other end of the locking plate is tilted upward and aligned with the plane of the handle. A fixed shaft on one side of the funnel body is inserted into the handle through the hinge of the locking plate and inserted into the handle's rotating shaft, connecting the funnel body and the handle as a whole. By flipping open the locking plate on the handle, the funnel body and the handle can be separated, making it easy to replace and compatible with different funnel bodies. At the same time, the locking plate is used to flip and knock the powder out, making it easier to remove the single-cup powder bowl, double-cup powder bowl, or capsule bowl.

[0006] The handle of the funnel brewing assembly is provided with a counterweight, which is encapsulated in the handle through a handle cover at the end, thereby improving the hand feel during use.

[0007] A single-cup powder bowl, a double-cup powder bowl or a capsule bowl is placed in the funnel body of the funnel brewing assembly; a bursting cover is provided at the bowl mouth of one end of the capsule bowl body; and knife blocks with equidistant distribution and bursting protrusions and a water outlet hole are provided at the bottom of the bursting cover in the bowl body of the capsule bowl; the raised center hole at the bottom of the single-cup powder bowl or the double-cup powder bowl is inserted into the central through hole of the funnel silicone.

[0008] The single-cup pressurized powder bowl of the single-cup powder bowl and the double-cup pressurized powder bowl of the double-cup powder bowl are respectively bowl-shaped, and the top of the single-cup pressurized powder bowl or the double-cup pressurized powder bowl is respectively provided with a powder groove, and the bottom of the powder groove of the single-cup pressurized powder bowl or the double-cup pressurized powder bowl is respectively provided with a filter hole; the filter screen is fixed to the orifice at the center hole in the top groove of the powder bowl connecting seat at the bottom of the single-cup pressurized powder bowl or the double-cup pressurized powder bowl through a filter fixing frame, and a powder bowl sealing ring is provided in the top groove of the powder bowl connecting seat, which is against the bottom plane of the single-cup pressurized powder bowl or the double-cup pressurized powder bowl, the protrusion at the outer diameter of the stamped single-cup pressurized powder bowl or the double-cup pressurized powder bowl is snap-fixed in the top groove of the powder bowl connecting seat, and the protrusion at the bottom center hole of the powder bowl connecting seat is inserted into the center of the funnel silicone in the funnel body of the funnel brewing assembly. Therefore, after the coffee powder is placed in the powder slot on the top of the single-cup pressurized powder basket or the double-cup pressurized powder basket, the bursting cap is screwed in. After the single-cup pressurized powder basket or the double-cup pressurized powder basket is placed in the funnel body of the funnel brewing assembly, the funnel brewing assembly is selected into the high-pressure sealed brewing assembly of the coffee machine, and the coffee powder can be brewed and dripped out through the filter holes and the center hole in the single-cup pressurized powder basket or the double-cup pressurized powder basket.

[0009] The outer diameter of the center hole at the bottom of the powder bowl connecting seat of the single cup powder bowl and the double cup powder bowl is provided with fins that are evenly distributed and circularly raised, and the fins are integrally formed with the powder bowl connecting seat.

[0010] The capsule bowl has a water inlet seat provided in a groove at the top of the connecting cup body, a capsule cup provided at the bottom of the connecting cup body, and the water inlet seat, the connecting cup body, and the capsule cup are connected as a whole by connecting screws. A capsule cup sealing ring is provided at the connection between the connecting cup body and the water inlet seat, a water inlet puncture needle extending into the bottom of the capsule cup is provided at the connection between the connecting cup body and the top of the capsule cavity of the capsule cup, and the capsule cup has the bursting cover provided at the bottom bowl opening of the capsule cavity. The water inlet hole at the water inlet seat communicates with the capsule cavity in the capsule cup through the connecting cup body. Thus, after a coffee capsule is placed in the capsule cup of the capsule bowl, the bursting cover is screwed into place, and after the capsule bowl is placed in the funnel body of the funnel brewing assembly, the funnel brewing assembly is inserted into the high-pressure sealed brewing assembly of the coffee machine, and the coffee capsule can be punctured and opened by the bursting plate and the water inlet puncture needle in the capsule cup to achieve brewing.

[0011] The utility model has a reasonable structural design, is convenient for use with a single-cup powder bowl, a double-cup powder bowl or a capsule bowl, and for assembly of a high-pressure sealed brewing component; it is suitable for use as a replaceable all-in-one coffee machine brewing device, and is a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0013] Figure 2 yes Figure 1 A schematic cross-sectional structural diagram of the funnel brewing assembly, in which a capsule bowl is placed in the funnel body.

[0014] Figure 3 yes Figure 1 A structural view of the funnel brewing assembly at the funnel body. The high-pressure sealed brewing assembly and capsule bowl are omitted in the figure, and the lock plate is in the open state.

[0015] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of the funnel silicone inside the funnel body at the funnel brewing component.

[0016] Figure 5 yes Figure 2 Schematic diagram of the cross-sectional structure of the single-cup powder basket, double-cup powder basket, and capsule bowl with the removed state, omitting the high-pressure sealed brewing component.

[0017] Figure 6 yes Figure 5 Schematic diagram of the three-dimensional structure.

[0018] Figure 7 yes Figure 6 Schematic diagram of the explosion structure of the double cup powder basket.

[0019] Figure 8 yes Figure 6 Schematic diagram of the capsule bowl explosion structure.

[0020] Figure 9 yes Figure 1 Schematic diagram of the explosion structure of the high-pressure sealed brewing component.

[0021] Serial number and name of the accompanying drawings: 1. High-pressure sealed brewing assembly, 101. Fixed bracket, 102. Brewing main bracket, 1021. Liquid inlet, 103. Brewing sealing silicone, 104. Water separation filter, 105. Fixing screw, 106. Mounting screw, 2. Funnel brewing assembly, 201. Funnel body, 2011. Positioning rib, 202. Funnel silicone, 2021. Guide rib, 203. Lock plate, 204. Counterweight, 205, handle cover, 3, single cup powder basket, 4, double cup powder basket, 401, double cup booster powder basket, 402, filter fixing bracket, 403, powder basket sealing ring, 404, filter, 405, powder basket connecting seat, 4051, fin, 5, capsule bowl, 501, bursting cover, 502, capsule cup, 503, water inlet puncture needle, 504, connecting cup body, 505, capsule cup sealing ring, 506, water inlet seat, 6, coffee capsule. Implementation Method

[0022] Now, in conjunction with the accompanying drawings, the structure and use of the utility model are further described. Figures 1-9As shown, the brewing device includes a high-pressure sealed brewing assembly 1 and a funnel brewing assembly 2. The funnel brewing assembly is locked to the inner diameter of the bottom opening of the high-pressure sealed brewing assembly's brewing main support 102 by a raised snap-on edge at the top of the funnel body 201. The outer diameter of the top opening of the high-pressure sealed brewing assembly's brewing main support is provided with evenly spaced mounting ears. The funnel body is provided at one end of the handle of the funnel brewing assembly. The brewing main support of the high-pressure sealed brewing assembly is provided with a fixing bracket 101 at the top. The annular fixing bracket has a notch at one end and is installed with mounting screws 106 into corresponding grooves on both sides of the liquid inlet hole 1021 at the top of the brewing main support. The bottom of the brewing main support is provided with a water diversion filter 104, which is fixed to the central boss within the bottom hole by fixing screws 105. The liquid outlet is provided on one side of the water diversion filter on the central boss. Brewing sealing silicone 103 is provided in the raised outer diameter groove at the bottom of the brewing main support. The funnel brewing assembly has three through holes arranged side by side at the bottom inner of the funnel body. The bottom of the funnel corresponding to the through holes is provided with a straight-line protrusion. The bottom inner of the funnel body is provided with a funnel silicone 202 of corresponding shape. The diameter of the through hole at the center of the funnel silicone is larger than the diameter of the same through holes on both sides. The top opening of the funnel silicone is provided with a raised guide rib 2021, and a guide notch is provided at the guide rib. A convex column is provided at the through hole in the middle of the bottom inner of the funnel silicone.

[0023] Furthermore, the handle of the funnel brewing assembly is equipped with a flip-up lock plate 203 on one side of the funnel body. One end of the lock plate is hingedly fixed to the gusset plate slot on the handle, and the other end of the lock plate is tilted upward and aligned with the plane of the handle. The fixed shaft on one side of the funnel body is inserted into the handle through the hinge of the lock plate and inserted into the handle's rotating shaft, thus connecting the funnel body and the handle as a whole. The handle of the funnel brewing assembly is equipped with a counterweight block 204, which is enclosed in the handle by a handle cover 205 at the end.

[0024] Furthermore, a single-cup powder bowl 3, a double-cup powder bowl 4 or a capsule bowl 5 is placed in the funnel body of the funnel brewing assembly. A bursting cover 501 is provided at the bowl mouth of one end of the bowl body of the capsule bowl. The bottom of the bursting cover in the bowl body of the capsule bowl is provided with equidistantly distributed and bursting raised knife blocks and knife block water outlet holes; the raised center hole at the bottom of the single-cup powder bowl or the double-cup powder bowl is inserted into the center through hole of the funnel silicone. The specific structures of the above-mentioned single-cup powder bowl, double-cup powder bowl or capsule bowl are as follows: the single-cup powder bowl of the single-cup powder bowl and the double-cup powder bowl 401 of the double-cup powder bowl are respectively bowl-shaped, and the top of the single-cup powder bowl or the double-cup powder bowl is respectively provided with a powder groove, and the bottom of the powder groove of the single-cup powder bowl or the double-cup powder bowl is respectively provided with a filter hole; the center hole in the top groove of the powder bowl connecting seat 405 at the bottom of the single-cup powder bowl or the double-cup powder bowl is fixed to the center hole of the filter screen fixing frame 402, and a powder bowl sealing ring 403 is provided in the top groove of the powder bowl connecting seat, which is against the bottom plane of the single-cup powder bowl or the double-cup powder bowl. The protrusion at the outer diameter of the stamped single-cup powder bowl or the double-cup powder bowl is fixed in the top groove of the powder bowl connecting seat, and the protrusion at the bottom center hole of the powder bowl connecting seat is inserted into the center of the funnel silicone in the funnel body of the funnel brewing assembly. The outer diameter of the center hole at the bottom of the powder bowl connecting seat of the single cup powder bowl and the double cup powder bowl is provided with equidistantly distributed circular raised fins 4051, and the fins are integrally formed with the powder bowl connecting seat.

[0025] A water inlet seat 506 is provided in the top groove of the connecting cup body 504 of the above-mentioned capsule bowl, and a capsule cup 502 is provided at the bottom of the connecting cup body. The water inlet seat, the connecting cup body and the capsule cup are connected as a whole by connecting screws. A capsule cup sealing ring 505 is provided at the connection between the connecting cup body and the water inlet seat, and a water inlet puncture needle 503 extending into the bottom of the capsule cup is provided at the connection between the connecting cup body and the capsule cavity of the capsule cup. The bottom bowl mouth of the capsule cavity of the capsule cup is provided with the above-mentioned bursting cover, and the water inlet hole at the water inlet seat is communicated with the capsule cavity in the capsule cup through the connecting cup body.

[0026] When in use, after placing a single cup powder bowl, a double cup powder bowl or a capsule bowl and corresponding coffee powder or coffee capsule 6 into the funnel body of the funnel brewing assembly as needed, the funnel body of the funnel brewing assembly can be selected into the high-pressure sealed brewing assembly of the coffee machine.

[0027] The brewing device comprises the following main components: a high-pressure brewing seal assembly, a brewing funnel assembly, and a replaceable coffee cup module or a replaceable capsule brewing module. The high-pressure sealed brewing assembly features a high-pressure extraction chamber that provides a stable, high-pressure environment for deep extraction of coffee grounds or coffee capsules, ensuring the release of both oils and aroma. The capsule brewing module features a sealed, high-pressure extraction chamber with a puncture needle at the bottom of the coffee capsule to allow hot water to enter. Once pressure is generated, it provides a stable, high-pressure environment for deep extraction of coffee grounds or coffee capsules, ensuring both oils and aroma. The replaceable capsule brewing module is a capsule bowl. The replaceable coffee cup module is an espresso powder extraction module and utilizes a double-layer pressurized powder basket. This basket is secured via an inverted connection to the basket connector, ensuring stability and reliability. The assembly process is simple and capable of brewing espresso powders of varying concentrations, from 14g to 7g, offering excellent compatibility and convenience. The replaceable coffee cup module is available in single or double cup configurations. The brewing device's funnel brewing assembly features a compatible spatial design, allowing for different coffee brewing styles by replacing different brewing modules. The aluminum funnel is designed with a weighted block, achieving the dense, heavy feel of stainless steel within a low-cost design. A locking plate (powder pressing plate) is designed on the handle for easy fixing and removal for cleaning. Traditional funnels and powder baskets require a retaining spring or other fixing methods, making them inconvenient to remove during use. Furthermore, the powder basket and funnel easily fall off during tapping to remove the powder, scattering coffee grounds everywhere and creating a poor user experience. Furthermore, the brewing device's funnel brewing assembly facilitates the replacement of different powder baskets or capsule bowls, accommodating different brands and sizes of coffee capsules and coffee powder, ensuring excellent compatibility. Advanced puncture and water injection techniques ensure full extraction of the coffee in the capsule while preventing leakage of coffee grounds.

[0028] The capsule compartment of the above-mentioned capsule functional module is reasonably designed to accommodate coffee capsules of different brands and sizes and has good compatibility. It adopts advanced puncture and water injection technology to ensure that the coffee in the coffee capsule can be fully extracted while preventing coffee grounds from leaking. It is easy to clean and can be subsequently extended to develop coffee capsule modules of different types and shapes.

[0029] To sum up, the brewing device relates to a coffee machine funnel with multiple integrated functions, which mainly provides a brewing module with Italian coffee powder brewing and coffee capsule brewing to meet the user's needs for different coffee making methods. The user only needs to replace different brewing modules and place them in the brewing handle assembly to achieve switching between different styles of coffee brewing, thereby improving the versatility and practicality of the coffee machine.

[0030] The effects of this brewing device are as follows: Multifunctional integration, combining the functions of traditional Italian coffee powder machines and capsule coffee machines, allowing users to choose different coffee making methods according to their preferences and needs, without having to purchase multiple single-function coffee machines, saving space and costs. Easy operation, by sharing a funnel brewing component and replacing the corresponding brewing module, it is easy to brew and make different coffee needs, greatly improving the convenience of use. The coffee quality is high, and each functional brewing module uses advanced technology and design to accurately control various parameters in the coffee making process, such as water temperature, pressure, time, etc., to ensure that the coffee produced is rich in taste and pure in flavor. Easy to clean and maintain, the various parts of the coffee machine funnel are rationally designed and have many detachable parts, which are convenient for users to clean and maintain, ensuring the hygiene and performance stability of the coffee machine.

Claims

1. A replaceable all-in-one coffee machine brewing device, comprising a high-pressure sealed brewing component (1) and a funnel brewing component (2), wherein the funnel brewing component is locked to the inner diameter of the bottom opening of the brewing main bracket (102) of the high-pressure sealed brewing component by a buckle edge protruding from the funnel opening at the top of the funnel body (201), and the outer diameter of the top opening of the brewing main bracket of the high-pressure sealed brewing component is provided with equidistantly distributed mounting ears, and the funnel body is provided at one end of the handle of the funnel brewing component; The brewing main bracket (102) of the high-pressure sealed brewing assembly (1) is provided with a fixing bracket (101) on the top, a notch is provided at one end of the annular fixing bracket, and is installed into the corresponding grooves on both sides of the liquid inlet hole (1021) at the top of the brewing main bracket through the installation screws (106), and the bottom of the brewing main bracket is provided with a water separation filter (104) fixed to the central boss in the bottom hole through the fixing screws (105), and the liquid outlet is provided on one side of the water separation filter of the central boss, and the outer diameter of the convex at the bottom of the brewing main bracket is concave. Brewing sealing silica gel (103) is provided in the groove; the bottom of the funnel body (201) of the funnel brewing component (2) is provided with three through holes arranged side by side, the bottom of the funnel corresponding to the through holes is provided with a straight-shaped protrusion, the bottom of the funnel body is provided with a funnel silica gel (202) of the corresponding shape, the diameter of the through hole at the center of the funnel silica gel is larger than the diameter of the same through holes on both sides, the top opening of the funnel silica gel is provided with a raised guide rib (2021), the guide rib is provided with a guide notch, and the through hole in the middle of the bottom of the funnel silica gel is provided with a convex column.

2. The replaceable all-in-one coffee brewing device according to claim 1, characterized in that A flip lock plate (203) is provided at the handle on one side of the funnel body (201) of the funnel brewing assembly (2), one end of the lock plate being hingedly fixed to a buckle plate slot on the handle, the other end of the lock plate being tilted upward and aligned with the plane of the handle, a fixed shaft inserted into the handle on one side of the funnel body is inserted into the rotating shaft of the handle through the hinged portion of the lock plate, so that the funnel body and the handle are connected as one.

3. The replaceable all-in-one coffee brewing device according to claim 1, characterized in that The handle of the funnel brewing assembly (2) is provided with a counterweight (204), which is encapsulated and disposed in the handle via a handle cover (205) at the end.

4. The replaceable all-in-one coffee brewing device according to claim 1, characterized in that A single-cup powder bowl (3), a double-cup powder bowl (4) or a capsule bowl (5) is placed in the funnel body (201) of the funnel brewing component (2); a bursting cover (501) is provided at the mouth of one end of the bowl body of the capsule bowl; and knife blocks with bursting protrusions and water outlet holes are provided at the bottom of the bursting cover in the bowl body of the capsule bowl; the central hole at the bottom of the single-cup powder bowl or the double-cup powder bowl is inserted into the central through hole of the funnel silica gel (202).

5. The replaceable all-in-one coffee brewing device according to claim 4, characterized in that The single-cup pressurized powder bowl of the single-cup powder bowl (3) and the double-cup pressurized powder bowl (401) of the double-cup powder bowl (4) are respectively bowl-shaped, and the top of the single-cup pressurized powder bowl or the double-cup pressurized powder bowl is respectively provided with a powder groove, and the bottom of the powder groove of the single-cup pressurized powder bowl or the double-cup pressurized powder bowl is respectively provided with a filter hole; the center hole in the top groove of the powder bowl connecting seat (405) at the bottom of the single-cup pressurized powder bowl or the double-cup pressurized powder bowl is fixed to the center hole through a filter fixing frame (402). A filter screen (404) is provided at the opening of the powder bowl connection seat, a powder bowl sealing ring (403) is provided in the groove at the top of the powder bowl connection seat, and the powder bowl sealing ring is abutted against the bottom plane of the single-cup pressurized powder bowl or the double-cup pressurized powder bowl. The protrusion at the outer diameter of the stamped single-cup pressurized powder bowl or the double-cup pressurized powder bowl is fixed in the groove at the top of the powder bowl connection seat, and the protrusion at the center hole at the bottom of the powder bowl connection seat is inserted into the center of the funnel silica gel (202) in the funnel body (201) of the funnel brewing component (2).

6. The replaceable all-in-one coffee brewing device according to claim 5, characterized in that The outer diameter of the bottom center hole of the powder bowl connecting seat (405) of the single-cup powder bowl (3) and the double-cup powder bowl (4) is provided with equidistantly distributed circular raised fins (4051), and the fins are integrally formed with the powder bowl connecting seat.

7. The replaceable all-in-one coffee brewing device according to claim 4, characterized in that A water inlet seat (506) is provided in the groove at the top of the connecting cup body (504) of the capsule bowl (5), and a capsule cup (502) is provided at the bottom of the connecting cup body. The water inlet seat, the connecting cup body, and the capsule cup are connected as a whole by connecting screws. A capsule cup sealing ring (505) is provided at the connection between the connecting cup body and the water inlet seat. A water inlet puncture needle (503) extending into the bottom of the capsule cup is provided at the connection between the connecting cup body and the capsule cavity of the capsule cup. The rupture cover (501) is provided at the bottom of the capsule cavity of the capsule cup. The water inlet hole at the water inlet seat communicates with the capsule cavity in the capsule cup through the connecting cup body.

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