A high-stability capsule coffee extraction device

Abstract

The application discloses a high-stability capsule coffee extraction device, mainly comprising a powder pressing support, a brewing head, a funnel body and a capsule storage body. The powder pressing support provides stable support, and a brewing head capable of moving up and down is arranged above the powder pressing support. The funnel body is detachably connected to the lower part of the powder pressing support. The brewing head is precisely embedded into the positioning cavity of the funnel when being pressed down, thereby forming reliable limiting and ensuring the stability of components in the extraction process. Water flows into the brewing head, and then continuously flows through the first water injection hole of the funnel and the second water injection hole of the capsule storage body, thereby forming a simple and efficient through water path and reducing the risk of leakage. A piercing needle is arranged at the top of the capsule storage body and used for piercing a coffee capsule. A liquid outlet hole is arranged at the bottom of the funnel. The device has an optimized structure, and the extraction stability and the use convenience are considered. The detachable design facilitates complete cleaning, and the safety and the hygiene level are effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of coffee machine technology, and in particular relates to a highly stable capsule coffee extraction device. Background Technology

[0002] Capsule coffee machines are becoming increasingly popular due to their ease of use and consistent flavor. Currently, most capsule coffee machines on the market use an integrated design for the funnel containing the coffee capsule and the brewing head, the core component for extraction. This integrated design allows hot water and coffee grounds to stagnate, easily breeding bacteria and affecting the subsequent coffee flavor. Furthermore, their internal water supply systems are often complex, with multi-section connections increasing cleaning difficulty and increasing the risk of leaks and water pressure loss due to excessive sealing, thus affecting extraction stability. Other designs using detachable funnels suffer from instability after installation; especially during extraction, when the brewing head presses down and injects high-temperature, high-pressure hot water, if the funnel becomes loose due to insecure fixing, it can lead to extraction failure, hot water spraying, and even scalding for the user. Therefore, current technology still has significant shortcomings in balancing ease of cleaning, water system simplicity, operational stability, and safety. Utility Model Content

[0003] (I) Purpose of the utility model

[0004] To overcome the above shortcomings, the purpose of this utility model is to provide a highly stable capsule coffee extraction device to solve the problems of inconvenient funnel cleaning and unstable structure in existing capsule coffee machines, as well as the safety hazards in the high-temperature and high-pressure extraction process, and the difficulty in balancing cleanliness, stability, and safety.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution provided in this application is as follows:

[0007] A high-stability capsule coffee extraction device includes: a tamping holder with a through hole in the middle; a brewing head movably mounted above the tamping holder; a funnel body detachably mounted below the tamping holder, the upper end of the funnel body having a positioning cavity with an opening at the upper end for the brewing head to be inserted through the through hole, the lower end of the funnel body being a receiving cavity, and the funnel body having a first water injection hole penetrating between the bottom of the positioning cavity and the receiving cavity; a capsule chamber body disposed in the receiving cavity and connected to the funnel body, the capsule chamber body having a second water injection hole that aligns with and communicates with the first water injection hole; a capsule piercing needle disposed on the top inner side of the capsule chamber body for piercing the outer shell of a coffee capsule when it is inserted; wherein, the bottom of the funnel body has a first liquid outlet hole communicating with the capsule chamber body.

[0008] Through the coordinated operation of the powder pressing support, the brewing head, and the funnel body, structural optimization and functional integration are achieved. The powder pressing support provides stable support for the entire system, while the brewing head precisely embeds into the positioning cavity of the funnel body when pressed down, forming a reliable axial limit. This ensures the funnel remains fixed in position during extraction and will not accidentally dislodge due to internal pressure or vibration, significantly improving operational safety. Regarding the water system design, this solution adopts a simple and efficient through-flow water system. Water is directly injected from the brewing head, connecting the first water inlet in the funnel body to the second water inlet in the capsule chamber body. This effectively reduces connection points and potential leakage points, simplifying the structure while improving water system sealing and extraction stability. Furthermore, the funnel body features a detachable design, allowing for easy removal from the powder pressing support. This facilitates thorough cleaning of the funnel interior and capsule chamber body, effectively solving the problem of cleaning hard-to-reach areas. This design comprehensively balances a stable and reliable extraction process, a simple and efficient water system, and convenient maintenance and cleaning, achieving a good balance between safety, extraction performance, and ease of use.

[0009] In some embodiments, the powder pressing support is provided with multiple guide columns, and the brewing head is provided with multiple guide holes that cooperate with the guide columns. The guide columns are inserted into the guide holes so that the brewing head can move up and down along them.

[0010] The precise fit between the guide post and the guide hole provides accurate linear guidance for the movement of the brewing head, effectively preventing deviation or wobbling during movement and ensuring accurate docking with the funnel body below. During extraction, this stable trajectory guarantees the uniformity and reliability of the sealing contact between the brewing head and the funnel body, thus significantly improving the stability and service life of the device.

[0011] In some embodiments, it further includes a screw locking member that passes sequentially through the top of the capsule puncture needle and the capsule chamber body and locks them securely to the funnel body.

[0012] The capsule puncture needle and capsule chamber are secured together using a single screw, greatly simplifying the assembly process and ensuring a firm connection between components during operation, effectively preventing performance degradation due to loose parts. This design also facilitates subsequent maintenance and parts replacement, improving product maintainability.

[0013] In some embodiments, the funnel body extends axially around the first water inlet hole within the receiving cavity to form a hole wall, which encloses the water inlet cavity. The upper end of the second water inlet hole protrudes to form a water inlet nozzle, which is inserted into the water inlet cavity and mates with the first water inlet hole.

[0014] The plug-in connection between the water inlet nozzle and the water inlet chamber forms an efficient water circuit connection solution, ensuring accurate connection of the water inlet channel and effectively preventing water leakage or seepage. The plug-in design also makes the assembly process more intuitive and convenient, while ensuring the reliability and consistency of the water circuit connection after each assembly.

[0015] In some embodiments, it further includes: a first seal, which is disposed around the water inlet and abuts against the inner side of the orifice wall.

[0016] The first seal forms a reliable sealing barrier at the junction of the water inlet and the water inlet chamber. This sealing design can withstand the water pressure during the extraction process, effectively preventing hot water from leaking from the connection, ensuring the efficient use of water flow, avoiding equipment damage or extraction failure caused by leakage, and improving the safety of equipment operation.

[0017] In some embodiments, the funnel body includes: a funnel body and a funnel bottom cover detachably connected to the funnel body, a positioning cavity located at the upper end of the funnel body, a hollow lower end of the funnel body forming an opening, which together with the funnel bottom cover forms a receiving cavity, and a first liquid outlet is opened on the funnel bottom cover.

[0018] The detachable funnel design greatly enhances the ease of cleaning the device. Users can easily separate the funnel body from the bottom cover to thoroughly clean the internal space and prevent coffee grounds from remaining.

[0019] In some embodiments, it further includes: a second seal disposed around the outside of the brewing head and abutting against the inner wall of the positioning cavity.

[0020] When the brew head is pressed down, the seal fits snugly against the inner wall of the positioning chamber, creating a reliable sealing environment. This design ensures that hot water does not overflow between the brew head and the funnel body during high-pressure extraction, guaranteeing stable extraction pressure and thus ensuring thorough and uniform coffee extraction.

[0021] In some embodiments, the powder pressing support is provided with symmetrical grooves on both sides for the edge of the funnel body to be engaged and slide along it.

[0022] The symmetrically arranged sliding groove structure allows the funnel body to slide smoothly and accurately into position along a predetermined path during installation, effectively limiting its horizontal movement. During extraction, the sliding groove structure and the downward pressure limiting effect of the brewing head complement each other, ensuring from two directions that the funnel body will not accidentally loosen due to vibration or internal pressure, further enhancing the overall stability and safety of the equipment. At the same time, this sliding snap-fit ​​method is intuitive and simple to operate; users do not need complex alignment when inserting or removing the funnel body, greatly improving ease of use.

[0023] In some embodiments, the capsule chamber body includes: a hollow capsule chamber with an opening at the lower end and a capsule chamber bottom covering the capsule chamber opening. The inner side of the capsule chamber bottom is provided with a plurality of protrusions for abutting against the aluminum foil cover of the coffee capsule, and a plurality of second liquid outlet holes are provided on the capsule chamber bottom.

[0024] Multiple protrusions on the inner side of the capsule bottom provide concentrated and sufficient support pressure to the aluminum foil cover of the coffee capsule during extraction. As hot water is continuously injected into the capsule, the internal pressure gradually accumulates; when the pressure reaches a critical value, the aluminum foil cover ruptures, fully releasing the coffee oils under high temperature and pressure, achieving efficient extraction. Simultaneously, multiple secondary outlet holes on the capsule bottom form evenly distributed liquid flow channels, ensuring that the extracted coffee liquid is smoothly and evenly collected and discharged. This synergistic design effectively avoids the problem of extract stagnation or uneven flow rate in localized areas, significantly improving the integrity and flavor consistency of coffee extraction, contributing to a consistently high-quality, oil-rich coffee beverage.

[0025] In some embodiments, an installation groove is provided around the lower opening of the capsule chamber, and the high-stability capsule coffee extraction device further includes a third seal embedded in the installation groove, the lower end of which abuts against the bottom of the capsule chamber.

[0026] The third seal provides a reliable seal at the connection interface between the capsule chamber and the bottom of the capsule chamber. This effectively prevents leakage of the extract from the joint, ensuring that all extracted coffee flows out through the pre-designated outlet. This guarantees the integrity and hygiene of the extraction process while preventing damage to the equipment caused by liquid leakage. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the high-stability capsule coffee extraction device of this utility model;

[0028] Figure 2 This is a cross-sectional view of the high-stability capsule coffee extraction device of this utility model along the AA direction;

[0029] Figure 3 This is a cross-sectional view of the high-stability capsule coffee extraction device of this utility model along the BB direction;

[0030] Figure 4 This is an exploded view of the high-stability capsule coffee extraction device of this utility model;

[0031] Figure 5 This is a cross-sectional view of the coffee capsule installed in the funnel body of the high-stability capsule coffee extraction device of this utility model.

[0032] Figure label:

[0033] 1. Tamper support; 101. Guide post; 102. Slide groove; 103. Through hole; 2. Brewing head; 201. Guide hole; 3. Funnel body; 301. Funnel body; 3011. First water inlet hole; 3012. Water inlet chamber; 3013. Positioning chamber; 302. Funnel bottom cover; 3021. First liquid outlet hole; 4. Capsule chamber body; 401. Capsule chamber; 4011. Second water inlet hole; 40111. Water nozzle; 402. Capsule chamber bottom; 4021. Protrusion; 5. Capsule piercing needle; 6. Screw locking component; 7. First sealing component; 8. Second sealing component; 9. Third sealing component; 10. Filter screen; 11. Coffee capsule. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0035] This invention provides a high-stability capsule coffee extraction device, the core of which lies in the coordinated operation of the tamping holder 1, the brewing head 2, and the funnel body 3. Specifically, the tamping holder 1 serves as the basic support structure, with a through hole 103 precisely formed in its center. The brewing head 2 is vertically movable above the tamping holder 1, and its operation can be achieved via a manual lever or a motor. Furthermore, the funnel body 3 is detachably mounted below the tamping holder 1. A positioning cavity 3013 is formed at the upper end of the funnel body 3, with its upper opening aligned with the through hole 103 of the tamping holder 1, allowing the brewing head 2 to pass through the through hole 103 and embed itself within the positioning cavity 3013. The lower end of the funnel body 3 forms a receiving cavity, and a first water inlet 3011 is formed inside the funnel body 3, penetrating between the bottom of the positioning cavity 3013 and the lower receiving cavity, forming the main water inlet channel. Notably, a capsule chamber 4 is housed within the receiving cavity, maintaining a secure connection with the funnel body 3. The capsule chamber body 4 is correspondingly provided with a second water inlet 4011, which is precisely aligned with the aforementioned first water inlet 3011, thereby introducing water into its interior. Furthermore, a capsule piercing needle 5 is fixedly installed on the inner top of the capsule chamber body 4, which can immediately pierce the capsule shell when the coffee capsule 11 is inserted into the capsule chamber. Finally, a first liquid outlet 3021 is also provided at the bottom of the funnel body 3, which ensures that the extracted coffee liquid can flow smoothly out and connect to the capsule chamber body 4.

[0036] In some embodiments, to ensure the smooth and precise up-and-down movement of the brewing head 2, multiple guide posts 101 are fixedly installed on the powder pressing support 1, and these guide posts 101 are preferably arranged symmetrically. Correspondingly, the brewing head 2 is provided with multiple guide holes 201 that precisely mate with these guide posts 101. During assembly, the guide posts 101 are inserted into the corresponding guide holes 201, thus strictly limiting the brewing head 2 to up-and-down movement only along the axial direction of the guide posts 101, effectively preventing skewing and shaking. Specifically, the brewing head 2 is provided with a filter screen 10.

[0037] Regarding the connection and fixation of the various components, the device also includes a screw locking component 6. This screw locking component 6 passes sequentially through the pre-set mounting holes on the top of the capsule puncture needle 5 and the capsule chamber body 4, and is finally securely screwed into the threaded connection portion on the funnel body 3. By tightening this single screw locking component 6, the capsule puncture needle 5 and the capsule chamber body 4 can be locked and fixed together as a whole component on the funnel body 3, resulting in a simple and reliable structure.

[0038] In some embodiments, the powder pressing bracket 1 and the funnel body 3 are detachably connected via a groove structure. Specifically, symmetrically machined inwardly opening grooves 102 are formed on both sides of the powder pressing bracket 1. The cross-section of these grooves 102 can be designed as dovetail, T-shaped, or simple U-shaped, with dovetail grooves preferred to provide better lateral restraint. Correspondingly, flanges or sliders that precisely match the shape of the grooves 102 are integrally formed on both sides of the upper outer edge of the funnel body 3. During installation, the user only needs to align the flanges on both sides of the funnel body 3 with the inlet of the groove 102 of the powder pressing bracket 1, and then smoothly push it in horizontally to reliably suspend and fix the funnel body 3 below the powder pressing bracket 1. The length of the groove 102 is reasonably designed so that when the funnel body 3 slides to the end point, its positioning cavity 3013 can automatically align with the through hole 103 of the powder pressing bracket 1. In this way, the chute guide structure not only enables the rapid assembly and disassembly and precise positioning of the funnel body 3, but also works in conjunction with other limiting mechanisms to ensure the overall structural rigidity and safety reliability of the equipment under high-pressure extraction conditions.

[0039] For optimized water channel connection, the funnel body 3 features a special design within its accommodating cavity: it extends along the axis surrounding the first water inlet hole 3011 to form an annular wall, which encloses a water inlet cavity 3012. Simultaneously, an integral protrusion forms a water inlet nozzle 4011 at the upper end of the second water inlet hole 4011 of the capsule body 4. In the assembled state, this water inlet nozzle 40111 is inserted into the aforementioned water inlet cavity 3012, thereby achieving reliable connection with the first water inlet hole 3011 and ensuring the continuity of the water channel.

[0040] To further improve the sealing performance at the connection between the water inlet nozzle 40111 and the water inlet cavity 3012, a first sealing element 7 is added to the device. This first sealing element 7 is preferably an O-ring made of food-grade silicone or rubber, tightly surrounding the outer circumference of the water inlet nozzle 40111. When the water inlet nozzle 40111 is inserted into the water inlet cavity 3012, the outer surface of the first sealing element 7 forms a tight contact with the inner surface of the cavity wall, effectively preventing leakage of high-pressure hot water at this critical connection.

[0041] The funnel body 3 can be designed as a separate unit for easy cleaning. Specifically, the funnel body 3 consists of two parts: a funnel body 301 and a funnel bottom cover 302, which are detachably connected by snaps or threads. The positioning cavity 3013 is located at the upper end of the funnel body 301, while the lower end of the funnel body 301 is designed to be hollow and form an opening. When the funnel bottom cover 302 is installed in place, it together with the funnel body 301 to form the aforementioned receiving cavity. The first liquid outlet 3021 is directly opened on the funnel bottom cover 302, serving as the main channel for the coffee liquid to flow out.

[0042] To achieve a dynamic seal between the brewing head 2 and the positioning cavity 3013 of the funnel body 3, the device also includes a second sealing element 8. This second sealing element 8 is preferably an O-ring, which is arranged around a specific annular groove on the outer wall of the brewing head 2. When the brewing head 2 is pressed down and embedded in the positioning cavity 3013, the second sealing element 8 undergoes elastic deformation and fully conforms to the smooth inner wall of the positioning cavity 3013, thereby establishing an effective sealing barrier during high-pressure extraction and preventing hot water overflow.

[0043] Finally, the structure of the capsule body 4 has also been carefully considered. It mainly includes a hollow capsule chamber 401 with an opening at the bottom, and a capsule bottom 402 for closing the opening. The capsule bottom 402 can be positioned at the opening of the funnel bottom cover 302 corresponding to the capsule chamber 401. When the funnel bottom cover 302 is closed, the capsule bottom 402 can simultaneously close to the opening of the capsule chamber 401. Specifically, multiple regularly distributed protrusions 4021 are provided on the inner side of the capsule bottom 402. These protrusions 4021 provide stable support points for the aluminum foil cover of the coffee capsule 11 during extraction. As the internal pressure of the capsule increases, the aluminum foil is eventually torn at these protrusions 4021. Simultaneously, multiple secondary liquid outlet holes are densely arranged on the capsule bottom 402. These holes together form a uniform liquid flow network, ensuring that the extracted coffee liquid can be smoothly and evenly collected and discharged, thereby guaranteeing the consistency and high quality of the coffee flavor. After the coffee liquid flows out from the second outlet hole, it is discharged into the funnel body 3 through the first outlet hole 3021.

[0044] To ensure a tight seal at the connection between the capsule chamber 401 and the capsule chamber bottom 402, a mounting groove is machined around the lower opening of the capsule chamber 401. The device is also equipped with a third seal 9, preferably a silicone ring with a circular cross-section, which is tightly embedded in the mounting groove. After the capsule chamber bottom 402 is installed and tightened, the lower end face of the third seal 9 forms a reliable pressure contact and seal with the upper surface of the capsule chamber bottom 402, preventing leakage of the extract from the joint.

[0045] The following is the extraction process for capsule coffee:

[0046] During extraction preparation, a pre-packaged coffee capsule 11 is placed into the capsule chamber 4. During insertion, the top of the capsule is punctured by the capsule puncture needle 5 fixed to the top of the inner side of the capsule chamber 401, forming a water inlet channel.

[0047] Next, the brewing head 2 is driven to move downward along the guide post 101. The brewing head 2 passes through the through hole 103 of the powder pressing support 1 and is finally embedded in the positioning cavity 3013 of the funnel body 3. During this process, the second sealing member 8, which is located on the outside of the brewing head 2, fits tightly against the inner wall of the positioning cavity 3013, forming a reliable upper sealing space.

[0048] When the equipment is started, high-temperature, high-pressure hot water is injected from the brewing head 2 and enters the sealed space formed by the brewing head 2 and the positioning cavity 3013. The water then flows through the first water inlet 3011 of the funnel body 3 and enters the water filling cavity 3012. Since the water inlet nozzle 40111 is inserted into the water filling cavity 3012 and its outer periphery is sealed by the first sealing member 7, the water is forced through the water inlet nozzle 40111 and enters the second water inlet 4011 of the capsule body 4, thereby injecting into the coffee capsule 11.

[0049] Hot water accumulates inside the sealed capsule, and the pressure and temperature gradually increase, fully saturating and extracting the coffee grounds. As the internal pressure continues to increase, the aluminum foil cover at the bottom of the coffee capsule 11 is tightly supported by multiple protrusions 4021 on the inner side of the capsule bottom 402, and is precisely torn when the critical pressure is reached.

[0050] The extracted, oil-rich coffee liquid, driven by pressure, flows through a ruptured aluminum foil cover and through multiple densely packed second outlet holes on the bottom 402 of the capsule chamber. During this process, the coffee liquid is evenly mixed and distributed. Subsequently, the coffee liquid gathers and flows out of the device steadily through the first outlet hole 3021 on the funnel bottom cover 302, completing the entire extraction process.

[0051] After extraction, the brewing head 2 returns to its original position and separates from the funnel body 3. The user can then remove the funnel body 3 along with the used coffee capsule 11, open the funnel bottom cover 302, and discard the used coffee capsule 11.

[0052] The process involves cleaning to prepare for the next extraction. This highly integrated process features a simple water system, safe and convenient operation, and achieves stable and high-quality coffee extraction.

[0053] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A highly stable capsule coffee extraction device, characterized in that, include: A powder pressing support (1) has a through hole (103) in the middle; a brewing head (2) is movably mounted above the powder pressing support (1); a funnel body (3) is detachably mounted below the powder pressing support (1), the upper end of the funnel body (3) has a positioning cavity (3013), the upper opening of the positioning cavity (3013) allows the brewing head (2) to be inserted through the through hole (103), the lower end of the funnel body (3) is a receiving cavity, and the funnel body (3) has a through hole that penetrates the bottom of the positioning cavity (3013) and connects to the receiving cavity. A first water inlet (3011) is provided between the receiving cavities; a capsule chamber body (4) is provided in the receiving cavity and connected to the funnel body (3), the capsule chamber body (4) having a second water inlet (4011) that connects to and communicates with the first water inlet (3011); a capsule piercing needle (5) is provided on the top inner side of the capsule chamber body (4) for piercing the outer shell of the coffee capsule (11) when it is inserted; wherein, a first liquid outlet (3021) is provided at the bottom of the funnel body (3) that communicates with the capsule chamber body (4).

2. The high-stability capsule coffee extraction device according to claim 1, characterized in that, The powder pressing support (1) is provided with multiple guide posts (101), and the brewing head (2) is provided with multiple guide holes (201) that cooperate with the guide posts (101). The guide posts (101) are inserted into the guide holes (201) so that the brewing head (2) can move up and down along them.

3. The high-stability capsule coffee extraction device according to claim 1, characterized in that, Also includes: A screw locking member (6) passes through the top of the capsule puncture needle (5) and the capsule chamber body (4) and is connected to the funnel body (3).

4. The high-stability capsule coffee extraction device according to claim 1, characterized in that, The funnel body (3) extends axially around the first water injection hole (3011) in the receiving cavity to form a hole wall, which forms a water injection cavity (3012). The upper end of the second water injection hole (4011) protrudes to form a water injection nozzle (40111), which is inserted into the water injection cavity (3012) and docks with the first water injection hole (3011).

5. The high-stability capsule coffee extraction device according to claim 4, characterized in that, Also includes: A first seal (7) is disposed around the water inlet (40111) and abuts against the inner side of the hole wall.

6. The high-stability capsule coffee extraction device according to claim 1, characterized in that, The funnel body (3) includes: a funnel body (301) and a funnel bottom cover (302) detachably connected to the funnel body (301). The positioning cavity (3013) is located at the upper end of the funnel body (301). The lower end of the funnel body (301) is hollow and forms an opening, which together with the funnel bottom cover (302) forms the receiving cavity. The first liquid outlet hole (3021) is opened on the funnel bottom cover (302).

7. The high-stability capsule coffee extraction device according to claim 1, characterized in that, Also includes: The second sealing element (8) is arranged around the outside of the brewing head (2) and abuts against the inner wall of the positioning cavity (3013).

8. The high-stability capsule coffee extraction device according to claim 1, characterized in that, The powder pressing support (1) has symmetrical grooves (102) on both sides for the edge of the funnel body (3) to be inserted into and slide along it.

9. The high-stability capsule coffee extraction device according to claim 1, characterized in that, The capsule body (4) includes: a hollow capsule compartment (401) with an opening at the bottom and a capsule compartment bottom (402) covering the opening of the capsule compartment (401). The inner side of the capsule compartment bottom (402) is provided with a plurality of protrusions (4021) for abutting against the aluminum foil cover of the coffee capsule (11). The capsule compartment bottom (402) is provided with a plurality of second liquid outlet holes.

10. The high-stability capsule coffee extraction device according to claim 9, characterized in that, An installation groove is provided around the lower opening of the capsule chamber (401). The high-stability capsule coffee extraction device also includes a third sealing member (9) embedded in the installation groove. The lower end of the third sealing member (9) abuts against the bottom (402) of the capsule chamber.

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