Coffee capsule extraction mechanism and coffee machine

Abstract

The utility model provides a coffee capsule extraction mechanism and a coffee machine. The coffee capsule extraction mechanism comprises a water distribution piece, a puncturing piece, a pressure maintaining assembly and a capsule containing bin. The pressure maintaining assembly further comprises a liquid outlet splitter plate and a pressure maintaining support. The puncturing piece is fixedly arranged in the capsule containing bin, the liquid outlet splitter plate is provided with a puncturing protruding head in a protruding mode towards the capsule containing bin, the liquid outlet splitter plate and the pressure maintaining support are provided with liquid flow guide cavities, a pressure maintaining channel is formed in the pressure maintaining support and communicated with the liquid flow guide cavities, the pressure maintaining channel is provided with an expanding hole, and the expanding hole is communicated with the water outlet nozzle through the filtering piece. The situation that hot water directly flows into a coffee cup from the interior of the capsule bin is avoided, coffee liquid slowly flows into the filtering piece through the arrangement of the pressure maintaining channel, the coffee liquid can be fully fused with air to make coffee thicker, and it is guaranteed that the coffee is rich in grease and mellower in taste.

Description

Technical Field

[0001] The present disclosure relates to the technical field of coffee making, and in particular, to a coffee capsule extraction mechanism and a coffee machine. Background Art

[0002] At present, with the continuous improvement of living standards, people pay more and more attention to their quality of life. For coffee lovers, brewing coffee has become an indispensable operation in daily life. However, the existing coffee machines are generally large in size and can only be used at home. When people travel, it is inconvenient to carry a large coffee machine for coffee brewing. In response to this, some manufacturers have also discovered this problem, and portable coffee machines have emerged in the market accordingly.

[0003] For example, Chinese Patent Document CN206473199U discloses a portable capsule coffee machine that brews capsules with high-pressure water. A portable capsule coffee machine includes a first cavity, a second cavity, and a water cup connected in sequence; a water tank and a heating device for heating the water tank are provided in the first cavity; the hot water in the water tank automatically becomes high-pressure water after passing through a water pump, and the high-pressure water can enter the capsule chamber from the top of the capsule chamber to brew the coffee powder in the capsule chamber.

[0004] However, the design of the above-mentioned portable capsule coffee machine has the following problems:

[0005] Although the above-mentioned portable capsule coffee machine can heat water into high-pressure water through the water pump in the water tank, the high-pressure water directly enters the inside of the capsule chamber from the top of the capsule chamber to brew the coffee powder, and finally enters the water cup, so that the coffee powder is poured into the coffee cup without being filtered, resulting in insufficiently rich coffee oil and not mellow enough taste in the extracted coffee. Summary of the Utility Model

[0006] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide a coffee capsule extraction mechanism and a coffee machine for pressure-holding extraction of coffee capsules.

[0007] The purpose of the present disclosure is achieved by the following technical solutions:

[0008] A coffee capsule extraction mechanism, comprising a water diversion member, a puncturing member and a capsule placement chamber; the puncturing member is disposed inside the cavity of the capsule placement chamber, the capsule placement chamber is located on the water outlet side of the water diversion member, and the cavity of the capsule placement chamber communicates with the water diversion member; the coffee capsule extraction mechanism further comprises a pressure maintaining assembly; the pressure maintaining assembly is disposed at the bottom of the capsule placement chamber, the pressure maintaining assembly includes a liquid outlet flow dividing plate and a pressure maintaining bracket, the liquid outlet flow dividing plate is disposed between the capsule placement chamber and the pressure maintaining bracket, the liquid outlet flow dividing plate protrudes towards the capsule placement chamber with a puncturing convex head, a liquid diversion cavity is formed between the liquid outlet flow dividing plate and the pressure maintaining bracket, a pressure maintaining channel and an expansion hole which are communicated with each other are formed on the pressure maintaining bracket, the liquid inlet end of the liquid diversion cavity is communicated with the cavity of the capsule placement chamber through a communication hole of the liquid outlet flow dividing plate, and the liquid outlet end of the liquid diversion cavity is communicated with the liquid diversion cavity through a communication hole of the liquid outlet flow dividing plate.

[0009] In one embodiment, a plurality of the puncturing convex heads are disposed on the liquid outlet flow dividing plate, and the puncturing convex heads are arranged at intervals on the liquid outlet flow dividing plate.

[0010] In one embodiment, a communication hole is formed between two adjacent puncturing convex heads.

[0011] In one embodiment, the pressure maintaining channel and the expansion hole are respectively formed on a cylindrical silica gel member of the pressure maintaining bracket.

[0012] In one embodiment, the capsule placement chamber is provided with a sealing ring, and the sealing ring is disposed around the end face of the liquid outlet end of the capsule placement chamber.

[0013] In one embodiment, the coffee capsule extraction mechanism further comprises a filtering member and a water outlet nozzle, the water outlet nozzle is disposed on the pressure maintaining bracket, the lower liquid outlet of the water outlet nozzle is disposed opposite to the expansion hole, the filtering member is disposed between the pressure maintaining bracket and the water outlet nozzle, and the pressure maintaining channel is communicated with the water outlet nozzle through the filtering member.

[0014] In one embodiment, the filtering member is composed of a plurality of filtering sheets.

[0015] In one embodiment, a plurality of water inlet holes are formed on the peripheral edge of the top of the capsule placement chamber, the water inlet holes are communicated with the water diversion member, a metal extraction bowl is disposed on the top of the capsule placement chamber, and the inner diameter of the inner circle of the metal extraction bowl ranges from 40 to 70 mm.

[0016] In one embodiment, a plurality of L-shaped buckles are disposed on the periphery of the puncturing member, and the L-shaped buckles are clamped on the top of the capsule placement chamber.

[0017] A coffee machine, including the coffee machine and the coffee capsule extraction mechanism described in any of the above embodiments. Compared with the prior art, the present disclosure has at least the following advantages:

[0018] 1) By arranging the capsule placement bin below the water distribution member and connecting it to the water distribution member, when a coffee capsule head is placed inside the capsule placement bin, a puncturing member is used to puncture the other side of the coffee capsule. At the same time, hot water is added to the water distribution member and flows into the coffee capsule in the capsule placement bin. The liquid outlet diversion plate protrudes a puncturing convex head towards the capsule placement bin. When the hot water flows into the coffee capsule, the puncturing convex head of the liquid outlet diversion plate will puncture the coffee capsule. Because the liquid inlet end of the liquid diversion cavity is connected to the communication hole of the liquid outlet diversion baffle, the coffee liquid extracted from the capsule will flow into the liquid diversion cavity through the communication hole. At the same time, a pressure maintaining channel is opened inside the pressure maintaining bracket. When the hot water enters the pressure maintaining channel, the air pressure inside the pressure maintaining channel becomes larger, causing the pressure maintaining channel to gradually expand outwards and the expansion holes to gradually become larger. The extracted liquid will slowly flow from the pressure maintaining channel into the filter element and merge with the air, making the extracted liquid thicker and richer in oil. At the same time, the filter element filters the extracted liquid again, making the taste of the coffee thicker.

[0019] 2) Compared with a prior art portable capsule coffee machine, the above coffee capsule extraction mechanism arranges the capsule placement bin at the bottom of the water distribution member. The coffee capsule is placed in the capsule placement bin, and a puncturing member is used to pierce the other side of the capsule. Hot water is added to the capsule placement bin through the water distribution member, so that the hot water enters the capsule for extraction. The puncturing convex head in the liquid outlet diversion plate is used to pierce the other end of the coffee capsule, so that the hot water flows from the liquid diversion cavity to the pressure maintaining channel. Through the pressure, the expansion holes in the pressure maintaining channel slowly expand, so that the coffee liquid further flows into the filter element and merges with the air, and finally flows into the coffee cup, avoiding the situation where the hot water directly flows from the inside of the capsule bin into the coffee cup. By setting the pressure maintaining channel, the coffee liquid slowly flows into the filter element, so that the coffee liquid can fully merge with the air and become thicker, ensuring that the coffee is rich in oil and has a more mellow taste. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a cross-sectional view of the coffee capsule extraction mechanism according to an embodiment of the present disclosure;

[0022] Figure 2 For Figure 1Cross-sectional view of the liquid outlet diverter plate shown;

[0023] Figure 3 is Figure 1 Schematic structural diagram of the piercing member shown;

[0024] Figure 4 is Figure 1 Schematic structural diagram of the capsule placement bin shown;

[0025] Figure 5 is Figure 1 Schematic structural diagram of the water outlet nozzle shown;

[0026] Figure 6 Cross-sectional view of a coffee machine according to another embodiment of the present disclosure;

[0027] Figure 7 is Figure 1 Schematic structural diagram of the metal extraction bowl shown.

[0028] Reference numerals: 10, coffee machine; 20, coffee capsule extraction mechanism; 100, water diversion member; 110, metal extraction bowl; 200, piercing member; 210, L-shaped buckle; 300, capsule placement bin; 310, sealing ring; 320, water inlet hole; 400, pressure maintaining assembly; 410, liquid outlet diverter plate; 4110, piercing convex head; 4120, communication hole; 420, pressure maintaining bracket; 430, filter element; 440, water outlet nozzle; 4410, liquid outlet; 500, liquid diversion cavity; 510, liquid outlet end; 520, liquid inlet end; 600, cylindrical silicone member; 610, pressure maintaining channel; 6120, expansion hole. Detailed implementation manners

[0029] For the convenience of understanding the present disclosure, the present disclosure will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present disclosure can be understood more thoroughly and comprehensively.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are for the purpose of describing specific embodiments only and are not intended to limit this disclosure. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] To better understand the technical solutions and beneficial effects of this disclosure, the following further describes this disclosure in detail with specific embodiments:

[0033] Combined with Figure 1 And Figure 2 As shown, the coffee capsule extraction mechanism 20 of an embodiment includes a water dividing member 100, a puncturing member 200, a pressure maintaining bracket 420, and a capsule placement chamber 300; the puncturing member 200 is disposed inside the inner cavity of the capsule placement chamber 300, the capsule placement chamber 300 is located on the water outlet side of the water dividing member 100, and the inner cavity of the capsule placement chamber 300 communicates with the water dividing member 100; the pressure maintaining assembly 400 is disposed at the bottom of the capsule placement chamber 300, the pressure maintaining assembly 400 includes a liquid outlet flow dividing plate 410 and a pressure maintaining bracket 420, the liquid outlet flow dividing plate 410 is disposed between the capsule placement chamber 300 and the pressure maintaining bracket 420, the liquid outlet flow dividing plate 410 protrudes toward the capsule placement chamber 300 with a puncturing convex head 4110, a liquid guiding cavity 500 is formed between the liquid outlet flow dividing plate 410 and the pressure maintaining bracket 420, a pressure maintaining channel 610 and an expanding hole 6120 which are communicated with each other are formed on the pressure maintaining bracket 420, the liquid inlet end 520 of the liquid guiding cavity 500 is communicated with the inner cavity of the capsule placement chamber 300 through the communication hole 4120 of the liquid outlet flow dividing plate 410, and the liquid outlet end 510 of the liquid guiding cavity 500 is communicated with the liquid guiding cavity 500 through the communication hole 4120 of the liquid outlet flow dividing plate 410.

[0034] It can be understood that by arranging the capsule placement bin 300 below the water diversion member 100 and connecting it to the water diversion member 100, when a coffee capsule head is placed inside the capsule placement bin 300, a puncturing member is used to puncture the other side of the coffee capsule. At the same time, hot water is added to the water diversion member 100 and flows into the coffee capsule in the capsule placement bin 300. Moreover, the liquid outlet flow dividing plate 410 protrudes a puncturing convex head towards the capsule placement bin 300. When hot water flows into the coffee capsule, the puncturing convex head 4110 of the liquid outlet flow dividing plate 410 will puncture the coffee capsule. Since the liquid inlet end 520 of the liquid diversion cavity 500 is connected to the communication hole 4120 of the liquid outlet flow dividing baffle, the coffee liquid extracted from the capsule will flow into the liquid diversion cavity 500 through the communication hole 4120. At the same time, a pressure maintaining channel 610 is provided inside the pressure maintaining bracket 420. When hot water enters the pressure maintaining channel 610, the air pressure inside the pressure maintaining channel 610 increases, causing the pressure maintaining channel 610 to gradually expand outwards and the expansion holes 6120 to gradually become larger. The extracted liquid will slowly flow out of the pressure maintaining channel 610 and mix with the air, making the extracted liquid thicker and richer in oil.

[0035] It can be understood that for a portable capsule coffee machine 10 of the prior art, in the above coffee capsule extraction mechanism 20, by arranging the capsule placement bin 300 at the bottom of the water diversion member 100, the coffee capsule is placed in the capsule placement bin 300, and a puncturing member 200 is used to pierce the other side of the capsule. Hot water is added to the capsule placement bin 300 through the water diversion member 100, so that the hot water enters the capsule for extraction. The puncturing convex head 4110 in the liquid outlet flow dividing plate 410 is used to pierce the other end of the coffee capsule, so that the hot water flows from the liquid diversion cavity 500 to the pressure maintaining channel 610. Through the pressure, the expansion holes 6120 in the pressure maintaining channel 610 slowly expand, enabling the coffee liquid to further flow out and mix with the air, and finally flowing into the coffee cup. This avoids the situation where hot water directly flows into the coffee cup from inside the capsule bin. By providing the pressure maintaining channel 610, the coffee liquid slowly flows into the coffee cup, enabling the coffee liquid to fully mix with the air and become thicker, ensuring that the coffee is rich in oil and has a more mellow taste.

[0036] Such as Figure 1As shown, in one embodiment, a number of piercing protrusions 4110 are provided on the liquid outlet diverter plate 410, and the piercing protrusions 4110 are arranged in sequence on the liquid outlet diverter plate 410. It can be understood that by providing a number of piercing protrusions 4110 on the liquid outlet diverter plate 410 and arranging them in sequence on the liquid outlet diverter plate 410, and injecting hot water into the capsule placement chamber 300, the coffee capsule can be punctured by the piercing protrusions 4110 at the other end to complete the extraction of the coffee capsule. Moreover, the piercing protrusions 4110 are arranged in sequence on the liquid outlet diverter plate 410, ensuring that the coffee capsule can be evenly punctured at each position, ensuring that the coffee powder in the capsule can receive uniform water injection and pressure treatment, guaranteeing the consistency and quality of the extraction of each coffee capsule, and thus enabling it to flow evenly into the pressure maintaining channel 610.

[0037] Combined with Figure 1 and Figure 2 As shown, in one embodiment, a communication hole 4120 is provided between two adjacent piercing protrusions 4110. It can be understood that by providing a communication hole 4120 between two adjacent piercing protrusions 4110, when the coffee capsule is punctured by the piercing member 200 and the piercing protrusions 4110, the hot water passing through the punctured coffee capsule will flow into the liquid diversion cavity 500 through the communication hole 4120, enabling the coffee extraction liquid to flow into the liquid diversion cavity 500 through a number of communication holes 4120, ensuring that the coffee capsules in each piercing protrusion 4110 of the liquid outlet diverter plate 410 can flow evenly into the liquid diversion cavity 500.

[0038] As Figure 1 shown, in one embodiment, the pressure maintaining channel 610 and the expansion holes 6120 are respectively provided on the cylindrical silicone member 600 of the pressure maintaining bracket 420. It can be understood that by providing the pressure maintaining channel 610 and the expansion holes 6120 on the cylindrical silicone member 600 of the pressure maintaining bracket 420, when the coffee extraction liquid flows from the liquid diversion cavity 500 into the pressure maintaining channel 610, because the pressure maintaining channel 610 is provided on the cylindrical silicone member 600 of the pressure maintaining bracket 420, due to the characteristics of the silicone, when the air pressure gradually increases, the cylindrical silicone member 600 will gradually expand outwards, causing the expansion holes 6120 of the pressure maintaining channel 610 to gradually open, so that the coffee liquid flows into the filter member 430 and mixes with air, enabling the coffee liquid to flow into the coffee cup rich in oil.

[0039] As Figure 1As shown, specifically, the capsule placement chamber 300 is provided with a sealing ring 310, and the sealing ring 310 is annularly arranged on the end face of the liquid outlet end 510 of the capsule placement chamber 300. It can be understood that by setting the sealing ring 310 on the end face of the liquid outlet end 510 of the capsule placement, the purpose of sealing and preventing water leakage when the coffee capsule is installed in the capsule placement chamber 300 is achieved, and it is also ensured that when the coffee capsule enters the capsule placement chamber 300, the capsule placement chamber 300 will not leak coffee liquid outward.

[0040] Combined with Figure 1 and Figure 3 As shown, specifically, several L-shaped buckles 210 are provided on the periphery of the puncturing member 200, and the L-shaped buckles 210 are snap-connected to the top of the capsule placement chamber 300. It can be understood that several L-shaped buckles 210 are provided on the periphery of the puncturing member 200. The setting of the L-shaped buckles 210 simplifies the process of installing the puncturing member 200 in the capsule placement chamber 300, enabling the user to quickly and accurately install the puncturing member 200 in the capsule placement chamber 300, saving operation time. At the same time, using the snap-connection method to snap-connect in the capsule placement chamber 300 makes the connection between the puncturing member 200 and the capsule placement chamber 300 more firm, reducing the risk of the first end or loosening caused by puncturing the coffee glue in the puncturing member 200.

[0041] As Figure 1 and Figure 5 As shown, in one embodiment, the coffee capsule extraction mechanism 20 further includes a filter element 430 and a water outlet nozzle 440. The water outlet nozzle 440 is arranged on the pressure maintaining bracket 420. The lower liquid outlet 4410 of the water outlet nozzle 440 is oppositely arranged with the expansion hole 6120. The filter element 430 is arranged between the pressure maintaining bracket 420 and the water outlet nozzle 440. The pressure maintaining channel 610 is communicated with the water outlet nozzle 440 through the filter element 430. It can be understood that when the coffee extraction liquid flows out from the expansion hole 6120 of the pressure maintaining channel 610 to the filter element 430, the coffee extraction liquid will be mixed with air to obtain coffee liquid rich in oil. At the same time, the coffee liquid is further filtered and extracted through the filter element 430, so that the impurities contained in the coffee liquid are extracted. Also, because the pressure maintaining channel 610 is communicated with the water outlet nozzle 440 through the filter element 430, when the coffee liquid is extracted through the filter element 430, it will flow out from the water outlet nozzle 440 into the coffee cup. And the water outlet nozzle 440 has several lower liquid outlets 441, which speeds up the speed of the coffee extraction liquid flowing into the coffee cup. [[ID=~15]]

[0042] Combined with Figure 1 and Figure 6As shown, in one embodiment, the filter member 430 is composed of a plurality of filter sheets. It can be understood that the filter member 430 is formed by stacking a plurality of filter sheets. When the coffee capsule is used to extract with hot water in the capsule placement chamber 300, and the extraction liquid flows into the pressure-holding channel 610 and then slowly flows into the filter member 430 through the expansion holes 6120, the coffee liquid is further extracted in the filter member 430. At the same time, the plurality of filter sheets stacked to form the filter member 430 improves the filtering effect of the filter member 430, more thoroughly removes the impurities and solid particles contained in the coffee liquid, and the stacked plurality of filter sheets share the pressure of the filter member 430, reducing the risk of wear and blockage of a single filter sheet.

[0043] Combined with Figure 1 、 Figure 4 and Figure 7 As shown, in one embodiment, a plurality of water inlet holes 320 are provided on the peripheral edge of the top of the capsule placement chamber 300. The water inlet holes 320 are communicated with the water distribution member 100. The metal extraction bowl 110 is arranged on the top of the capsule placement chamber 300, and the inner diameter of the inner circle of the metal extraction bowl 110 ranges from 40 to 70 mm. It can be understood that a plurality of water inlet holes 320 are provided on the peripheral edge of the top of the capsule placement chamber 300, and the water inlet holes 320 are communicated with the water distribution member 100. When hot water flows from the water distribution member 100 into the capsule placement chamber 300, it flows into the capsule placement chamber 300 through the water inlet holes 320. By providing a plurality of water inlet holes 320 on the peripheral edge of the capsule placement chamber 300, the hot water can quickly and unblockedly enter the capsule placement chamber 300, improving the extraction efficiency of the capsule placement chamber 300. At the same time, the metal extraction bowl 110 is installed on the top of the capsule placement chamber 300, so that the hot water can uniformly flow into the interior of the capsule placement chamber 300. The metal extraction bowl 110 is arranged on the top of the capsule placement chamber 300, and the two are integrally formed by using the secondary overmolding injection molding process. The metal extraction bowl 110 and the capsule placement chamber 300 use the plastic overmolding technology to reach a sufficient strength level so that a professional-level secondary uniform water distribution extraction head can be used. And the inner diameter of the inner circle of the metal extraction bowl 110 is 40 mm, 50 mm or 70 mm, which is not limited here, and those skilled in the art can also make other selections according to needs.

[0044] A coffee machine 10 includes the coffee capsule extraction mechanism 20 described in any one of the above embodiments. It can be understood that by applying the coffee capsule extraction mechanism 20 of the present disclosure in the coffee machine 10, the situation where hot water directly flows into the coffee cup from the inside of the capsule chamber is avoided. By providing the pressure-holding channel 610, the coffee liquid slowly flows into the filter member 430, so that the coffee liquid can fully blend with the air and become richer in coffee, ensuring rich coffee oil and a more mellow taste.

[0045] Compared with the prior art, the present disclosure has at least the following advantages:

[0046] 1) By arranging the capsule placement bin 300 below the water diversion member 100 and connecting it to the water diversion member 100, when a coffee capsule head is placed inside the capsule placement bin 300, a puncturing member is used to puncture the other side of the coffee capsule. At the same time, hot water is added to the water diversion member 100 and flows into the coffee capsule in the capsule placement bin 300. Moreover, the liquid outlet diversion plate 410 protrudes a puncturing convex head towards the capsule placement bin 300. When the hot water flows into the coffee capsule, the puncturing convex head 4110 of the liquid outlet diversion plate 410 will puncture the coffee capsule. Since the liquid inlet end 520 of the liquid diversion cavity 500 is connected to the communication hole 4120 of the liquid outlet diversion baffle, the coffee liquid extracted from the capsule will flow into the liquid diversion cavity 500 from the communication hole 4120. At the same time, a pressure maintaining channel 610 is formed inside the pressure maintaining bracket 420. When the hot water enters the pressure maintaining channel 610, the air pressure inside the pressure maintaining channel 610 increases, causing the pressure maintaining channel 610 to gradually expand outwards and the expansion holes 6120 to gradually become larger. The extracted liquid will slowly flow from the pressure maintaining channel 610 into the filter member 430 and blend with the air, making the extracted liquid thicker and richer in oil. At the same time, the filter member 430 filters the extracted liquid again, making the taste of the coffee thicker.

[0047] 2) For a portable capsule coffee machine 10 of the prior art, in the above coffee capsule extraction mechanism 20, by arranging the capsule placement bin 300 at the bottom of the water diversion member 100, the coffee capsule is placed into the capsule placement bin 300, and a puncturing member 200 is used to puncture the other side of the capsule. Hot water is added to the capsule placement bin 300 through the water diversion member 100, so that the hot water enters the capsule for extraction. And the puncturing convex head 4110 in the liquid outlet diversion plate 410 is used to puncture the other end of the coffee capsule, so that the hot water flows from the liquid diversion cavity 500 to the pressure maintaining channel 610. Through the pressure, the expansion holes 6120 in the pressure maintaining channel 610 slowly expand, so that the coffee liquid further flows into the filter member 430 and blends with the air, and finally flows into the coffee cup, avoiding the situation that the hot water directly flows into the coffee cup from the inside of the capsule bin. By arranging the pressure maintaining channel 610, the coffee liquid slowly flows into the filter member 430, so that the coffee liquid can fully blend with the air and become thicker, ensuring that the coffee is rich in oil and has a more mellow taste.

[0048] The above embodiments only represent several implementation manners of the present disclosure. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several deformations and improvements can still be made, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent shall be subject to the appended claims.

Claims

1. A coffee capsule extraction mechanism, comprising a water distribution member, a puncturing member and a capsule placement chamber; the puncturing member is disposed inside the inner cavity of the capsule placement chamber, the capsule placement chamber is located on the water outlet side of the water distribution member, and the inner cavity of the capsule placement chamber communicates with the water distribution member; It is characterized in that The coffee capsule extraction mechanism further comprises a pressure maintaining assembly; The pressure maintaining assembly is disposed at the bottom of the capsule placement chamber, the pressure maintaining assembly includes a liquid outlet diverter plate and a pressure maintaining bracket, the liquid outlet diverter plate is disposed between the capsule placement chamber and the pressure maintaining bracket, the liquid outlet diverter plate protrudes towards the capsule placement chamber with a puncturing convex head, a liquid diversion cavity is formed between the liquid outlet diverter plate and the pressure maintaining bracket, a pressure maintaining channel and an expansion hole which are communicated with each other are formed on the pressure maintaining bracket, the liquid inlet end of the liquid diversion cavity is communicated with the inner cavity of the capsule placement chamber through a communication hole of the liquid outlet diverter plate, and the liquid outlet end of the liquid diversion cavity is communicated with the liquid diversion cavity through a communication hole of the liquid outlet diverter plate.

2. The coffee capsule extraction mechanism according to claim 1, characterized in that, A plurality of water inlet holes are formed in the peripheral edge of the top of the capsule placement chamber, the water inlet holes are communicated with the water distribution member, the water distribution member further comprises a metal extraction bowl, the metal extraction bowl is disposed on the top of the capsule placement chamber, and the inner diameter of the inner circle of the metal extraction bowl ranges from 40 to 70 mm.

3. The coffee capsule extraction mechanism according to claim 1, characterized in that, A plurality of the puncturing convex heads are disposed on the liquid outlet diverter plate, and the puncturing convex heads are arranged at intervals on the liquid outlet diverter plate.

4. The coffee capsule extraction mechanism according to claim 2, characterized in that, A communication hole is formed between two adjacent puncturing convex heads.

5. The coffee capsule extraction mechanism according to claim 3, characterized in that, The pressure maintaining channel and the expansion hole are respectively formed on the cylindrical silica gel member of the pressure maintaining bracket.

6. The coffee capsule extraction mechanism according to claim 1, characterized in that, The capsule placement chamber is provided with a sealing ring, and the sealing ring is disposed around the end face of the liquid outlet end of the capsule placement chamber.

7. The coffee capsule extraction mechanism according to claim 1, wherein, The coffee capsule extraction mechanism further comprises a filtering member and a water outlet nozzle, the water outlet nozzle is disposed on the pressure maintaining bracket, the lower liquid outlet of the water outlet nozzle is disposed opposite to the expansion hole, the filtering member is disposed between the pressure maintaining bracket and the water outlet nozzle, and the pressure maintaining channel is communicated with the water outlet nozzle through the filtering member.

8. The coffee capsule extraction mechanism according to claim 7, wherein, The filtering member is composed of a plurality of filter sheets.

9. The coffee capsule extraction mechanism according to claim 1, characterized in that, A plurality of L-shaped buckles are disposed on the periphery of the puncturing member, and the L-shaped buckles are clamped to the top of the capsule placement chamber.

10. A coffee machine, characterized in that, Including the coffee capsule extraction mechanism according to any one of claims 1 to 9.

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