Coffee machine for accelerated percolation

Abstract

The application provides a coffee machine capable of accelerating drip filtration, comprising a machine body, a brewing chamber unit, a powder door assembly, and a drive mechanism; the brewing chamber unit comprises a chamber assembly and a top cover assembly, the top cover assembly is arranged on the chamber assembly and is used for closing or opening a brewing chamber of the chamber assembly, and the top cover assembly is provided with a powder inlet and a water inlet; the powder door assembly comprises a powder door frame, a sliding module, and the drive mechanism, the powder door frame is fixed on the machine body; the sliding module and the drive mechanism are arranged on the powder door frame, and the drive mechanism is used for driving the sliding module to move along the powder door frame to close or open the powder inlet; when the sliding module closes the powder inlet and brewing water submerges coffee powder in the brewing chamber, the brewing chamber is in a completely sealed state, so that the brewing chamber is kept at low pressure during the continuous brewing process. The application not only can accelerate drip filtration, but also the brewing chamber unit is provided with the top cover assembly capable of closing or opening the brewing chamber, and the structure is relatively simple and the cost is relatively low compared with the mode of driving the plunger mechanism to move horizontally to cover the brewing chamber through the drive mechanism.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of small household appliances, and particularly relates to a coffee machine capable of accelerating drip filtration. BACKGROUND

[0002] At present, the drip coffee machine on the market has a slow coffee making speed and a long time consumption. A drip coffee machine is disclosed in Chinese Patent Application with the application publication number CN106943018A, which comprises a container, a coffee basket, a coffee pot, a temperature-sensitive control valve, a control circuit, a switch module, a heating device and a base body. The container is used for containing brewing water, and the coffee basket is used for containing coffee powder. When coffee is brewed, the water in the container flows into the coffee basket to brew the coffee powder in the coffee basket, and the brewed coffee liquid flows into the coffee pot. The drip coffee machine has a slow brewing speed, and it is difficult to guarantee the extraction rate of coffee and the concentration of coffee after extraction, resulting in a poor user experience. SUMMARY

[0003] In view of the above problems existing in the prior art, the purpose of the embodiments of the present application is to provide a coffee machine capable of accelerating drip filtration.

[0004] The technical solution adopted by the embodiments of the present application is a coffee machine capable of accelerating drip filtration, which comprises a machine body, and further comprises:

[0005] A brewing cavity unit is detachably arranged on the machine body, and the brewing cavity unit comprises a cavity assembly and a top cover assembly. The cavity assembly has a brewing cavity, and the top cover assembly is arranged on the cavity assembly and used for closing or opening the upper port of the brewing cavity. The top cover assembly is provided with a powder inlet and a water inlet.

[0006] A powder door assembly comprises a powder door frame, a sliding module and a driving mechanism. The powder door frame is fixed on the machine body, and the powder door frame is provided with the powder falling port. When the brewing cavity unit is arranged on the machine body, the powder falling port is located above the powder inlet. The sliding module is arranged on the powder door frame, and the driving mechanism is arranged on the powder door frame and connected with the sliding module, and is used for driving the sliding module to move along the powder door frame to close or open the powder inlet. When the sliding module closes the powder inlet and the brewing water submerges the coffee powder in the brewing cavity, the brewing cavity is in a completely sealed state to maintain low pressure in the brewing cavity during the continuous brewing process.

[0007] The coffee machine of the embodiments of the present application not only can maintain accelerated drip filtration under low pressure, but also has the top cover assembly of the brewing cavity unit which can close or open the brewing cavity. Compared with the way of driving the plunger mechanism to move transversely to cover the brewing cavity, the structure is simple and the cost is low.

[0008] Optionally, the top surface of the top cover assembly is provided with a flange around the powder inlet; when the sliding module closes the powder inlet, the bottom of the sliding module is pressed against the flange and generates a preset interference with the flange to seal the powder inlet. In this way, the sealing performance can be guaranteed and the sealing effect can be improved.

[0009] Optionally, the top cover assembly includes an upper cover and a lower cover.

[0010] The lower cover is provided with a lower powder inlet channel and an annular cavity around the lower powder inlet channel, and the bottom of the annular cavity is provided with a water outlet hole communicating with the brewing cavity.

[0011] The upper cover is provided with an upper powder inlet channel, the upper end of the upper powder inlet channel penetrates to the top surface of the upper cover and forms the powder inlet, and the bottom surface of the upper cover is provided with a connecting portion around the lower end of the upper powder inlet channel and extending downward.

[0012] The upper cover is arranged on the lower cover, the lower end of the upper powder inlet channel is tightly connected to the upper end of the lower powder inlet channel, the connecting portion extends into the annular cavity, a water cavity is formed between the connecting portion and the bottom of the annular cavity, the water cavity is connected with a water supply assembly, a first sealing ring is arranged between the inner periphery of the connecting portion and the inner cavity wall of the annular cavity, and a second sealing ring is arranged between the outer periphery of the connecting portion and the outer cavity wall of the annular cavity. The top cover assembly is designed ingeniously, which can add coffee powder into the brewing cavity and send brewing water into the brewing cavity without interference.

[0013] Optionally, the upper cover is provided with a water inlet channel, one end of the water inlet channel communicates with the water cavity, and the other end of the water inlet channel extends to the side of the upper cover and protrudes outward to form a connecting head. In this way, when the brewing cavity unit is installed on the machine frame, the water supply assembly can be connected to realize smooth water supply.

[0014] Optionally, the cavity assembly includes:

[0015] A cavity, the cavity forms the brewing cavity with an open upper end and a closed lower end, and the bottom of the cavity is provided with a coffee liquid outlet communicating with the brewing cavity;

[0016] A filter screen arranged near the bottom of the brewing cavity;

[0017] A cavity handle including opposite first and second sides and a third side connecting the first and second sides, so that the cavity handle can be arranged in a half-enclosed manner on the circumferential outer side of the cavity;

[0018] The first buckle and the second buckle are respectively arranged on the first side and the second side, and each comprises a protrusion extending towards the other, and at least one first protruding column is arranged on the protrusion, and a resilient member is arranged between the first buckle, the second buckle and the cavity handle, so that the first buckle and the second buckle can move relative to the cavity handle to be close to each other to be inwards retracted or to be away from each other to be outwards expanded;

[0019] The elastic buckle is arranged on the third side and is provided with a plurality of guide holes arranged obliquely, and the first protruding column on the protrusion is arranged in the guide hole one by one, so that when the elastic buckle moves downwards, the first buckle and the second buckle are synchronously retracted inwards, and the clamping hooks on the two sides of the first buckle and the second buckle away from each other are respectively pulled out of the clamping grooves of the machine body, and when the elastic buckle moves upwards, the first buckle and the second buckle are synchronously expanded outwards to respectively extend out of the first side and the second side, and the clamping hooks on the two sides of the first buckle and the second buckle away from each other are respectively clamped into the clamping grooves on the machine body;

[0020] The reset component is arranged at the bottom of the third side and acts on the elastic buckle, for applying an upward movement force to the elastic buckle to reset.

[0021] The cavity assembly of the present application can control the synchronous extension and retraction of the two buckles through the elastic buckle to realize the detachable connection with the machine body, and the operation is convenient, and manual pressing of the elastic buckle can make the buckles of the brewing cavity unit and the machine body unhooked, and holding the handle and pulling outwards can detach the brewing cavity unit from the whole machine.

[0022] In an optional embodiment, the elastic buckle comprises a plate-shaped body and a pressing portion protruding outward on the upper portion of the plate-shaped body, and the reset component is located below the plate-shaped body and acts on the plate-shaped body;

[0023] The plate-shaped body is provided with two groups of guide holes arranged upward and downward, each group of guide holes comprises two guide holes arranged in an eight-shaped manner, the protrusion is provided with two first protruding columns, and the two first protruding columns are respectively arranged in the two guide holes close to the two groups of guide holes. The structure is reasonable, and it is beneficial to the elastic buckle to simultaneously drive the two buckles to stably expand outwards or retract inwards.

[0024] In an optional embodiment, the top cover assembly has a flange arranged around the powder inlet;

[0025] The sliding module comprises a powder gate, a powder gate support, a chute sliding block and a sealing gasket, the chute sliding block is arranged outside the powder gate support; the powder gate is arranged in the powder gate support, the powder gate is provided with a second protruding column penetrating through the powder gate support and extending into the chute on the chute sliding block, the bottom of the powder gate extends out of the powder gate support; the sealing gasket is sleeved on the bottom of the powder gate;

[0026] When the sliding module moves horizontally to above the powder inlet in a position of opening the powder inlet, the powder gate support is limited and kept in the position by the powder gate frame, the driving mechanism drives the chute sliding block to continue moving in the horizontal direction, the chute of the chute sliding block pushes the second protruding column of the powder gate to drive the powder gate to move vertically and towards the powder inlet, so that the sealing gasket is pressed against the flange and a preset interference amount is generated with the flange.

[0027] In an optional embodiment, the sliding module further comprises a rack plate, the rack plate is fixed on the chute sliding block, and the rack plate is provided with a rack extending in the horizontal direction;

[0028] The driving mechanism comprises a motor, the motor is connected with a driving gear, the driving gear is engaged with the rack, when the motor is started, the driving gear is driven to rotate, and the driving gear drives the rack and the rack plate to move horizontally.

[0029] In an optional embodiment, opposite sides of the powder gate support parallel to the movement direction of the powder gate support are respectively provided with blind holes, a column is connected in the blind hole through a spring, one end of the column protrudes out of the blind hole and forms a spherical end, and the spherical end is used for abutting against the powder gate frame or the chute sliding block. In this way, the limiting between the powder gate support and the powder gate frame under a certain resistance and the limiting between the powder gate support and the chute sliding block under a certain resistance can be realized.

[0030] In an optional embodiment, a coffee liquid cavity is formed below the filter screen in the brewing cavity; an outlet seat is arranged at the bottom of the cavity body, an outlet channel is arranged in the outlet seat, one end of the outlet channel is in communication with the coffee liquid cavity, and the other end of the outlet seat extends out of the outlet seat and forms an outlet connector;

[0031] A liquid guide seat is arranged in the machine body, the liquid guide seat is provided with a plug-in port, a liquid guide channel is arranged in the liquid guide seat and in communication with the plug-in port, the other end of the liquid guide channel is in communication with an outlet nozzle assembly arranged on the upper part of the machine body through a pipeline, so that the coffee liquid in the coffee liquid cavity can be sent out through the outlet nozzle assembly. The height of the coffee machine can be effectively reduced, and the whole machine can be miniaturized.

[0032] Compared with the prior art, the embodiment of the present application has the following advantages:

[0033] 1. After the coffee powder falls into the brewing chamber through the powder inlet of the top cover assembly of the brewing chamber unit, the driving mechanism drives the powder door to seal the powder inlet, and the hot water provided by the water supply assembly is sprayed into the brewing chamber through the top cover assembly. When the hot water immerses the coffee powder on the filter screen at the bottom of the brewing chamber, the cavity space is in a completely sealed state, and a certain low pressure is formed in the sealed cavity due to the compression and heating of the air and the automatic generation of water vapor, so that the coffee is accelerated to drip filter;

[0034] 2. Manual pressing of the snap buckle can realize the unbuckling of the brewing chamber unit and the machine body, and the brewing chamber unit can be pulled out of the machine by holding the handle. After the top cover assembly of the brewing chamber unit is opened to pour out the dregs and cleaned, the brewing chamber unit can be automatically connected with the water path of the water supply assembly by pushing it straight into the mounting position on the machine body, which is convenient for disassembly, cleaning and installation.

[0035] 3. The powder door in the powder door assembly can not only move horizontally with the powder door support, but also move downward a small distance after horizontal movement to a certain position, so that the sealing pad of the soft rubber on the powder door interferes with the flange of the hard rubber on the powder inlet of the top cover assembly by a certain amount, thereby forming a good seal.

[0036] It should be understood that the foregoing general description and the following detailed description are only exemplary and illustrative, but not for limiting the application.

[0037] The summary of various implementations or examples of the technology described in this application is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0038] In the drawings, which are not necessarily drawn to scale, like numerals can describe similar components throughout the several views. The drawings are generally intended for purposes of illustration only and can not imply an limitation of the application, in which the description and drawings, together with the claims, are used to explain embodiments of the application. Wherever possible, the same reference numbers are used throughout the drawings to depict the same or similar components. The embodiments of the application can be implemented in any of various forms, from a dedicated hardware implementation to a fully software implementation.

[0039] Figure 1 The exploded view of the accelerated drip filter coffee machine of the embodiments of the application.

[0040] Figure 2 The perspective view of the accelerated drip filter coffee machine of the embodiments of the application, in which the brewing chamber unit is installed in the machine body.

[0041] Figure 3 The perspective view of the accelerated drip filter coffee machine of the embodiments of the application, in which the brewing chamber unit is removed from the machine body.

[0042] Figure 4 The perspective view of the top cover assembly of the brewing chamber unit in the closed state.

[0043] Figure 5 Perspective view of the top cover assembly of the brewing chamber unit in an open condition.

[0044] Figure 6 Top view of the top cover assembly.

[0045] Figure 7 A-A sectional view of Figure 6

[0046] Figure 8 B-B sectional view of Figure 6

[0047] Figure 9 Exploded view of the top cover assembly.

[0048] Figure 10 Exploded view of the chamber assembly.

[0049] Figure 11 Perspective view of the chamber handle with the spring catch in a sprung condition.

[0050] Figure 12 Perspective view of the chamber handle with the spring catch in a depressed condition.

[0051] Figure 13 Sectional view of the powder door assembly with the sliding module in a condition in which the powder inlet is open.

[0052] Figure 14 Exploded view of the powder door assembly in the condition shown in Figure 13

[0053] Sectional view of the powder door assembly with the sliding module in a condition in which the powder inlet is closed. Figure 15

[0054] Exploded view of the powder door assembly in the condition shown in Figure 16 Figure 15 Exploded view of the sliding module.

[0055] Figure 17 Partial exploded view of the sliding module.

[0056] Figure 18 Sectional view of the accelerated trickling filter coffee machine of the present application in a condition in which the powder inlet is closed.

[0057] Figure 19 Magnified view of part C of

[0058] Figure 20 Figure 19

[0059] Figure 21 Figure 19 ​​​​​​Enlarged view of part D of Fig. 1.

[0060] Figure 22 Sectional view of a coffee machine according to an embodiment of the application, with the powder inlet in the open position.

[0061] Figure 23 Sectional view of a coffee machine according to an embodiment of the application, with the powder inlet in the open position. Figure 22 Enlarged view of part E of Fig. 1.

[0062] Figure 24 Water circuit diagram of a coffee machine according to an embodiment of the application.

[0063] Reference signs:

[0064] 1 - machine frame; 11 - mounting position; 12 - socket; 13 - clamping slot; 14 - liquid guide seat; 141 - insertion port; 142 - liquid guide channel; 151 - water tank; 152 - boiler; 153 - tee; 154 - water pump; 155 - air pump; 156 - one-way valve; 16 - grinding mechanism; 161 - powder outlet channel; 17 - spout assembly; 18 - base;

[0065] 2 - brewing chamber unit; 21 - chamber assembly; 211 - chamber; 2111 - brewing chamber; 2112 - coffee liquid chamber; 2113 - coffee liquid outlet; 212 - liquid outlet seat; 2121 - liquid outlet channel; 2122 - liquid outlet connector; 213 - filter screen; 214 - chamber handle; 2141 - first side; 2142 - second side; 2143 - third side; 2144 - grip; 215 - first clasp; 2151 - protrusion; 2152 - first protruding column; 2153 - clamping hook; 2154 - elastic member; 216 - second clasp; 217 - elastic buckle; 2171 - plate-shaped body; 21711 - guide hole; 2172 - pressing portion; 218 - rod body; 219 - reset component;

[0066] 22 - top cover assembly; 221 - upper cover; 2211 - upper powder inlet channel; 2212 - powder inlet; 2213 - flange; 2214 - connection portion; 2215 - water inlet channel; 2216 - connection head; 222 - lower cover; 2221 - lower powder inlet channel; 2222 - water cavity; 2223 - water outlet hole; 2224 - blocking portion; 2225 - positioning insertion block; 23 - first sealing ring; 24 - second sealing ring; 25 - third sealing ring;

[0067] 3 - powder gate assembly; 31 - powder gate frame; 311 - powder falling port; 312 - first through hole; 313 - baffle; 32 - sliding module; 321 - powder gate; 3211 - assembly part; 3212 - second protruding column; 3213 - blocking part; 322 - powder gate support; 3221 - through hole; 3222 - long slot; 3223 - blind hole; 3224 - column; 3225 - spring; 323 - inclined slot sliding block; 3231 - inclined slot; 3232 - second through hole; 324 - sealing gasket; 3241 - hook; 325 - rack plate; 3251 - rack; 326 - powder gate cover plate; 33 - driving mechanism; 331 - motor; 332 - driving gear;

[0068] 4 - coffee pot. DETAILED DESCRIPTION

[0069] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of protection of the present application.

[0070] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the common meaning understood by those of ordinary skill in the art to which the present application pertains. The terms “first”, “second”, and similar terms used in the present application do not denote any order, quantity, or importance, but are used to distinguish different components. The terms “include”, “contain”, and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, without excluding other elements or objects. The terms “connect” or “connected” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “up”, “down”, “left”, “right”, and the like only represent relative positional relationships, which can change when the absolute positions of the described objects change.

[0071] In order to keep the following description of the embodiments of the present application clear and concise, detailed descriptions of known functions and known components are omitted in the present application.

[0072] The embodiments of the present application provide a coffee machine for accelerating trickling filtration. As shown in Figures 1 to 23 the coffee machine includes a machine body, a brewing chamber unit 2, and a powder gate assembly 3.

[0073] As shown in Figure 1 and Figure 3As shown, the machine body comprises a machine body frame 1 and a water supply assembly and a grinding mechanism 16 or a powder loading mechanism arranged on the machine body frame 1. The machine body frame 1 has a mounting position 11 for arranging a brewing chamber unit 2. The bottom of the machine body frame 1 has a base 18.

[0074] The brewing chamber unit 2 is detachably arranged on the mounting position 11 of the machine body frame 1, as shown in Figure 2 and Figure 3 . As shown in Figure 4 and Figure 5 , the brewing chamber unit 2 comprises a chamber assembly 21 having a brewing chamber 2111 and a top cover assembly 22 arranged on the chamber assembly 21 for closing or opening an upper port of the brewing chamber 2111, and the top cover assembly 22 is provided with a powder inlet port 2212 and a water inlet port. The grinding mechanism 16 or the powder loading mechanism adds coffee powder into the brewing chamber 2111 through the powder inlet port 2212. The water supply assembly sends brewing water into the brewing chamber 2111 through the water inlet port.

[0075] As shown in Figure 13 and Figure 16 , the powder door assembly 3 comprises a powder door frame 31, a sliding module 32 and a driving mechanism 33. As shown in Figure 19 and Figure 22 , the powder door frame 31 is fixed on the machine body frame 1, and the powder door frame 31 has a powder falling port 311 through which the powder outlet end of the grinding mechanism 16 or the powder loading mechanism passes. When the brewing chamber unit 2 is arranged on the machine body frame 1, the powder falling port 311 is located above the powder inlet port 2212, so that the coffee powder sent out by the powder outlet end of the grinding mechanism 16 or the powder loading mechanism can fall into the brewing chamber 2111 through the powder inlet port 2212. The sliding module 32 is arranged on the powder door frame 31, and the driving mechanism 33 is arranged on the powder door frame 31 and connected with the sliding module 32 for driving the sliding module 32 to move along the powder door frame 31 to close or open the powder inlet port 2212, so that the powder inlet port 2212 can be kept sealed when the sliding module 32 closes the powder inlet port 2212. When the sliding module 32 closes the powder inlet port 2212 and the brewing water immerses the coffee powder in the brewing chamber 2111, the brewing chamber 2111 is in a completely sealed state to keep the low pressure in the brewing chamber 2111 during the continuous brewing process. When the powder inlet port 2212 is opened, the coffee powder coming out of the powder outlet channel 161 of the grinding mechanism 16 or the powder loading mechanism can fall into the brewing chamber 2111 through the powder falling port 311 (to be introduced below) on the top cover assembly 22 (as shown in Figure 22 and Figure 23 ).

[0076] The accelerated drip filter coffee machine of the embodiments of the present application can accumulate water at the bottom of the brewing chamber 2111 during the preparation of coffee liquid, because the water supply assembly continuously supplies water into the brewing chamber 2111, and the water supply speed is greater than the outflow speed of the brewed coffee liquid, so that the water accumulates at the bottom of the brewing chamber 2111, and the accumulated water separates the coffee liquid outlet 2113 and the upper water-free space in the brewing chamber 2111, so as to limit the gas in the upper water-free space in the brewing chamber 2111 from being discharged through the coffee liquid outlet 2113. As the liquid level gradually rises, the gas pressure in the upper water-free space in the brewing chamber 2111 continuously rises, and the gas pressure directly acts on the liquid below and directly contacts it, accelerating the discharge of the liquid to increase the drip speed. The user can avoid spending a long time waiting, and the drip filter can be performed under low pressure, which can improve the taste of the coffee liquid and improve the user experience.

[0077] The brewing chamber unit 2 of the accelerated drip filter coffee machine of the embodiments of the present application has a top cover assembly 22 that can close or open the brewing chamber 2111, and the structure is relatively simple and the cost is relatively low compared with the way of driving the plunger mechanism to move laterally to cover the brewing chamber 2111 through the driving mechanism 33. Moreover, the diameter of the powder inlet 2212 is greatly different from the diameter of the aperture of the chamber of the brewing chamber 2111 with a completely open top, which is easier to seal, so that the brewing chamber 2111 can be kept in a sealed state, avoiding the gas in the upper air in the brewing chamber 2111 from leaking through the powder inlet 2212, affecting the sealing state of the brewing chamber 2111, and failing to achieve low-pressure accelerated drip filtering.

[0078] It can be understood that the so-called low pressure in the present application refers to a pressure slightly higher than the atmospheric pressure. The specific pressure value is not limited, and is determined by the difference between the water supply speed of the water supply assembly and the drip speed.

[0079] In some embodiments, as shown in Figures 6 to 9 The top surface of the top cover assembly 22 is provided with a flange 2213 around the powder inlet 2212. When the sliding module 32 closes the powder inlet 2212, the bottom of the sliding module 32 abuts against the flange 2213 and has a predetermined interference amount with the flange 2213 to seal the powder inlet 2212. The powder inlet 2212 has a certain interference amount between the flange 2213 and the sliding module 32 to ensure sealing and achieve excellent sealing effect.

[0080] Continuing to combine Figures 6 to 9The top cover assembly 22 comprises an upper cover 221 and a lower cover 222. The lower cover 222 is provided with a lower powder inlet channel 2221 penetrating through the upper and lower surfaces thereof and an annular cavity arranged around the lower powder inlet channel 2221, and the cavity bottom of the annular cavity is provided with a water outlet hole 2223 communicating with the brewing cavity 2111. The upper cover 221 is provided with an upper powder inlet channel 2211 penetrating through the upper and lower surfaces thereof, and the upper end of the upper powder inlet channel 2211 forms a powder inlet port 2212. The bottom surface of the upper cover 221 is provided with a connecting portion 2214 extending downward around the lower end of the upper powder inlet channel 2211. The upper cover 221 is arranged on the lower cover 222 in a buckling manner, the lower end of the upper powder inlet channel 2211 is tightly butted against the upper end of the lower powder inlet channel 2221, the connecting portion 2214 extends into the annular cavity, and a water cavity 2222 is formed between the connecting portion 2214 and the cavity bottom of the annular cavity. The water cavity 2222 is connected with a water supply assembly, the water supply assembly supplies water into the water cavity 2222, and the water supplied into the water cavity 2222 is sprayed into the brewing cavity 2111 through the water outlet hole 2223. The top cover assembly 22 in the application has a clever structure design, and both coffee powder and brewing water can be added into the brewing cavity 2111 through the top cover assembly 22, and the two do not interfere with each other.

[0081] Further, as shown in Figure 7 , a first sealing ring 23 is arranged between the inner periphery of the connecting portion 2214 and the inner cavity wall of the annular cavity, and a second sealing ring 24 is arranged between the outer periphery of the connecting portion 2214 and the outer cavity wall of the annular cavity. By arranging the first sealing ring 23 and the second sealing ring 24, the sealing property of the water cavity 2222 can be ensured, and the water in the water cavity 2222 can be prevented from leaking between the upper cover 221 and the lower cover 222.

[0082] In some embodiments, as shown in Figure 8 , a water inlet channel 2215 (the powder inlet channel and the water inlet channel 2215 do not intersect) is arranged in the upper cover 221 and avoids the upper powder inlet channel 2211. One end of the water inlet channel 2215 communicates with the water cavity 2222, and the other end of the water inlet channel 2215 extends to the side of the upper cover 221 and protrudes outward to form a connecting head 2216, and the connecting head 2216 forms a water inlet port. By arranging the connecting head 2216, the water supply assembly can be connected when the brewing cavity unit 2 is installed on the machine frame 1, and smooth water supply can be realized.

[0083] Further, the machine frame 1 is provided with a water supply port of a water supply system (not shown in the figure), the water supply port is matched with the connecting head 2216, and when the brewing cavity unit 2 is installed on the machine frame 1, the connecting head 2216 is inserted into the water supply port. In this way, when the brewing cavity unit 2 is installed on the machine frame 1, the water supply system can be connected, and the convenience of use is improved.

[0084] Continue to combine Figure 6 and Figure 9The lower cover 222 has a positioning plug 2225 on its side, and the upper cover 221 has two connectors 2216. When the upper cover 221 is placed on the lower cover 222, the two connectors 2216 are located on opposite sides of the positioning plug 2225. The frame 1 has a socket 12 and a hole. The socket 12 can be seen in [reference needed]. Figure 19 and Figure 22 When the brewing chamber unit 2 is installed on the body frame 1, the positioning plug 2225 is inserted into the socket 12, and one of the connectors 2216 ( Figure 6 One connector 2216, located at the bottom, is inserted into the water supply port, and another connector 2216 is inserted into the socket. The positioning plug 2225 ensures accurate alignment of the connector 2216 with the water supply port and socket, enabling blind insertion. The connector 2216 inserted into the water supply port connects the water chamber 2222 to the water supply system. The other connector 2216 is only used to connect to the body frame 1 when the brewing chamber unit 2 is installed, ensuring the balance and stability of the brewing chamber unit 2 after installation. This connector 2216 can be a solid joint.

[0085] like Figure 8 and Figure 9 As shown, the bottom side of the lower cover 222 partially protrudes downward to form a plug 2224 that fits the opening of the brewing chamber 2111. The lower powder inlet channel 2221 extends to the bottom end of the plug 2224. The outer peripheral surface of the plug 2224 fits against the inner peripheral surface of the opening of the brewing chamber 2111. A third sealing ring 25 is fitted on the plug 2224 to seal the opening and the plug 2224, preventing gas from leaking from the upper waterless space inside the brewing chamber 2111 through the two.

[0086] In some embodiments, such as Figures 10 to 12 As shown, the cavity assembly 21 includes a cavity 211, a filter screen 213, a cavity handle 214, a first latch 215, a second latch 216, a spring latch 217, and a reset component 219.

[0087] like Figure 10 As shown, the cavity 211 has an approximately cylindrical structure, forming a brewing chamber 2111 that is open at the top and closed at the bottom. The bottom of the cavity 211 has a coffee liquid outlet 2113 that communicates with the brewing chamber 2111 (see [reference]). Figure 21 The filter 213 is located near the bottom of the brewing chamber 2111. Coffee powder entering through the powder inlet 2212 falls onto the filter 213 and is supported by the filter 213.

[0088] like Figure 11 and Figure 12As shown, the cavity handle 214 comprises opposite first side 2141 and second side 2142 and third side 2143 connecting the first side 2141 and the second side 2142, so that the cavity handle 214 forms an approximate U shape and can be arranged in a semi-enclosed manner on the circumferential outer side of the cavity 211. The third side 2143 of the cavity handle 214 is provided with a grip 2144 for the user to hold when using. The first buckle 215 is arranged on the first side 2141, and the second buckle 216 is arranged on the second side 2142, and the first buckle 215 and the second buckle 216 are the same structure and symmetrically arranged. The first buckle 215 and the second buckle 216 each comprise a protruding portion 2151 extending towards each other, and at least one first protruding column 2152 is arranged on the protruding portion 2151. The first buckle 215 and the second buckle 216 are respectively provided with elastic members 2154 between the cavity handle 214, so that the first buckle 215 and the second buckle 216 can move relative to the cavity handle 214 to approach each other to shrink inwardly or move away from each other to expand outwardly. The elastic member 2154 can be a spring, when the first buckle 215 and the second buckle 216 shrink inwardly and approach each other, the clamping hooks 2153 on the first buckle 215 and the second buckle 216 are respectively retracted into the first side 2141 and the second side 2142, and the spring is compressed; when the first buckle 215 and the second buckle 216 expand outwardly and move away from each other, the clamping hooks 2153 on the first buckle 215 and the second buckle 216 respectively protrude outwardly from the first side 2141 and the second side 2142, and the spring is stretched to the natural state. The elastic buckle 217 is arranged on the third side 2143 and can move vertically, the elastic buckle 217 is provided with a plurality of guide holes 21711 arranged obliquely, and the first protruding column 2152 on the protruding portion 2151 is arranged in the guide hole 21711 one by one. When the elastic buckle 217 moves downward, it drives the first buckle 215 and the second buckle 216 to shrink inwardly synchronously, so that the clamping hooks 2153 on the two are simultaneously retracted into the first side 2141 and the second side 2142 respectively, when the elastic buckle 217 moves upward, it drives the first buckle 215 and the second buckle 216 to expand outwardly synchronously to make the clamping hooks 2153 on the two respectively protrude out of the first side 2141 and the second side 2142. The reset component 219 is arranged at the bottom of the third side 2143 and acts on the elastic buckle 217, for applying a force to the elastic buckle 217 to move upward to reset.

[0089] Preferably, as Figures 10 to 12 shown, the elastic buckle 217 comprises a plate-shaped body 2171 and a pressing portion 2172 protruding outwardly on the upper side of the plate-shaped body 2171, the guide holes 21711 are arranged on the plate-shaped body 2171, and the reset component 219 is located below the plate-shaped body 2171 and acts on the plate-shaped body 2171. Specifically, the bottom of the plate-shaped body 2171 is provided with two rod bodies 218, and the elastic component comprises two springs, and the two springs are respectively sleeved on the two rod bodies 218.

[0090] The plate-shaped body 2171 is provided with two groups of guide holes 21711 arranged in an up-down manner, each group of guide holes 21711 includes two guide holes 21711 arranged in a splayed manner, and the protruding part 2151 is provided with two first protruding columns 2152, which are respectively arranged in the two guide holes 21711 close to the two groups of guide holes 21711.

[0091] As shown in Figures 1 to 3 , the body frame 1 is provided with a clamping groove 13 corresponding to the first buckle 215 and the second buckle 216 respectively. As shown in Figure 11 , when the brewing cavity unit 2 is not installed on the body, and no downward pressing action is applied to the elastic buckle 217, the elastic buckle 217 is in an upwardly popped state under the action of the reset component 219, that is, the elastic buckle 217 is in an initial state at a high position, and the elastic buckle 217 can remain in this state when no external force is applied to the elastic buckle 217, at the same time, the first buckle 215 and the second buckle 216 are respectively in a state of moving away from each other to extend outwardly under the action of the spring, at this time, the first protruding column 2152 on the two buckles is respectively located at the bottom end of the guide hole 21711 where it is located. When the brewing cavity unit 2 is installed on the body, the body frame 1 first presses the clamping hooks 2153 on the first buckle 215 and the second buckle 216, the clamping hooks 2153 drive the first buckle 215 and the second buckle 216 to shrink inwardly at the same time, and press the spring to compress, when the brewing cavity unit 2 is installed in place (installed in the installation position 11) on the body, the two buckles are expanded outwardly at the same time under the action of the spring, so that the clamping hooks 2153 thereon extend into the corresponding clamping grooves 13 respectively, thereby stably limiting the brewing cavity unit 2 on the body frame 1, that is, completing the installation of the brewing cavity unit 2 on the body.

[0092] When the coffee brewing is completed, and the brewing cavity unit 2 needs to be removed from the body, the pressing part 2172 of the elastic buckle 217 is pressed downwardly, so that the elastic buckle 217 moves from the initial state to the pressed state at a low position, the reset component 219 is compressed at the same time, and the first protruding column 2152 on the two buckles drives the two elastic buckles 217 to shrink inwardly under the action of the guide hole 21711 of the elastic buckle 217, when the first protruding column 2152 moves to the top end of the corresponding guide hole 21711, the clamping hooks 2153 on the two buckles are completely out of the clamping grooves 13 on the body frame 1 respectively, the clamping of the buckles and the body frame 1 is released, and the brewing cavity unit 2 can be removed from the body by pulling it outwardly through the handle 2144, which is convenient and fast to disassemble.

[0093] In some embodiments, as Figure 17 and Figure 18As shown, the sliding module 32 comprises a powder gate 321, a powder gate bracket 322, a chute sliding block 323 and a sealing gasket 324. The chute sliding block 323 is arranged outside the powder gate bracket 322; the powder gate 321 is arranged in the powder gate bracket 322, and the powder gate 321 is provided with a second protruding column 3212 penetrating through the powder gate bracket 322 and extending into a chute 3231 of the chute sliding block 323, and the bottom of the powder gate 321 extends out of the powder gate bracket 322; the sealing gasket 324 is sleeved on the bottom of the powder gate 321. When the sliding module 32 moves horizontally from the position of opening the powder inlet 2212 to the position above the powder inlet 2212, the powder gate bracket 322 is limited and kept in the position by the powder gate frame 31, the driving mechanism 33 drives the chute sliding block 323 to continue moving in the horizontal direction, the chute 3231 of the chute sliding block 323 pushes the second protruding column 3212 of the powder gate 321 to drive the powder gate 321 to move vertically and towards the powder inlet 2212, so that the sealing gasket 324 is pressed against the flange 2213 and generates a predetermined interference amount with the flange 2213. The sliding module 32 has a reasonable and compact structure, which not only can realize the horizontal movement of the powder gate 321, but also can realize the vertical movement of the powder gate 321, so that the powder gate 321 can interfere with the flange 2213 on the top cover assembly 22 to form an interference fit, thereby ensuring the sealing performance.

[0094] Further, as Figure 17As shown, the chute slide 323 is in U-shaped structure and includes two opposite side walls extending transversely, one end of the two side walls is connected by an end wall, and the other end of the two side walls is open to form a lateral opening. The chute 3231 includes four and is respectively provided on the two side walls. The powder door support 322 includes a bottom plate and four side plates provided on the bottom plate, the four side plates form a rectangular frame, the bottom plate is provided with a through hole 3221, and the opposite front and rear side plates are respectively provided with two long slot openings 3222 extending vertically to the upper and lower ends. The lateral opening of the chute slide 323 moves towards the right side plate of the powder door support 322 and is half-wrapped on the outside of the powder door support 322. The powder door 321 includes an assembly part 3211 and a blocking part 3213 provided at the bottom of the assembly part 3211, the assembly part 3211 is approximately rectangular frame-shaped and is fitted into the space surrounded by the bottom plate and the side plates of the powder door support 322, and is limited in the above-mentioned space by the powder door cover plate 326. The front and rear sides of the assembly part 3211 are respectively provided with two second protruding columns 3212, which respectively and correspondingly pass through the long slot openings 3222 on the powder door support 322 and extend into the chute 3231. The blocking part 3213 is approximately column-shaped and extends out of the powder door support 322 through the through hole 3221, and the bottom surface of the blocking part 3213 is a plane for covering the powder inlet 2212 on the top cover assembly 22. The sealing gasket 324 is annular and is sleeved on the outer circumferential side of the blocking part 3213, and the upper end surface of the sealing gasket 324 is provided with a plurality of hooks 3241 which are embedded on the assembly part 3211 to stably keep the sealing gasket 324 on the blocking part 3213.

[0095] Continuing to combine Figure 17 , the opposite sides of the powder door support 322 parallel to the movement direction thereof (i.e. Figure 17 the front and rear sides of the powder door support 322 in the powder door frame 31) are respectively provided with blind holes 3223, and the blind holes 3223 are connected with column bodies 3224 through springs 3225, one end of the column bodies 3224 protrudes from the blind holes 3223 and forms a spherical end, and the spherical end is used for abutting against the powder door frame 31 or the chute slide 323. To realize the limiting between the powder door support 322 and the powder door frame 31 under certain resistance conditions and the limiting between the powder door support 322 and the chute slide 323 under certain resistance conditions.

[0096] As shown in Figure 17 , the front and rear sides of the powder door support 322 are respectively provided with a blind hole 3223 near the left and right end portions thereof, and the blind holes 3223 are respectively connected with column bodies 3224 through springs 3225. The front and rear sides of the powder door frame 31 are respectively provided with first through holes 312 near the left end portion, as shown in Figure 14The two opposite side walls of the chute slider 323 are respectively provided with a second through hole 3232 near the end wall thereof. When the sliding module 32 is moved to above the powder inlet 2212 from the position of opening the powder inlet 2212, the two columns 3224 on the left end of the powder door support 322 are just inserted into the corresponding first through holes 312 of the powder door frame 31. When it is needed to open the powder inlet 2212, due to the limiting of the columns 3224 in the first through holes 312, it can be ensured that, in the initial stage of opening the powder inlet 2212, the powder door support 322 does not move while the chute slider 323 moves first relative to the powder door frame 31, so as to pull the powder door 321 and the sealing gasket 324 upward to separate from the powder inlet 2212, and then the chute slider 323 moves transversely together with the powder door support 322 to the position of opening the powder inlet 2212.

[0097] When the powder inlet 2212 is in the open state as shown in Figure 13 , it is needed to close the powder inlet 2212, the two columns 3224 on the right end of the powder door support 322 are just inserted into the corresponding second through holes 3232 of the chute slider 323, as shown in Figure 14 . When the driving mechanism 33 drives the chute slider 323 to start transversely moving to the direction of closing the powder inlet 2212, the powder door support 322 can move together with the chute slider 323, when the sliding module 32 moves to above the powder inlet 2212, the left end of the powder door support 322 abuts against the powder door frame 31, while there is still a certain distance between the left end of the chute slider 323 and the powder door frame 31, and there is also a certain gap L between the powder door support 322 and the chute slider 323, as shown in Figure 14 . The powder door support 322 does not block the chute slider 323, when the driving mechanism 33 continues to drive the chute slider 323 to move transversely, the powder door support 322 no longer moves transversely together with the chute slider 323. When the chute slider 323 continues to move transversely, the powder door 321 is simultaneously driven to move downward, when the chute slider 323 moves transversely by the distance L, the powder door support 322 forms a stop to the chute slider 323 (as shown in Figure 16 ), the chute slider 323 cannot continue to move, and at the same time, the powder door 321 moves downward by a preset distance, so that the sealing gasket 324 has a preset interference with the flange 2213, for example, the interference is 3mm, to realize the end face sealing of the powder inlet 2212, as shown in Figure 15 and Figure 16 .

[0098] In some embodiments, as shown in Figures 13 to 16As shown, the sliding module 32 further comprises a rack plate 325 fixed on the chute sliding block 323, and the rack plate 325 is provided with a rack 3251 extending in the transverse direction. The driving mechanism 33 comprises a motor 331 connected with a driving gear 332, and the driving gear 332 is engaged with the rack 3251. When the motor 331 is started, the driving gear 332 is driven to rotate, the driving gear 332 drives the rack 3251 and the rack plate 325 to move in the transverse direction, and the rack plate 325 drives the chute sliding block 323 to move synchronously. The above structure is simple and reasonable, and easy to realize.

[0099] As shown in Figure 14 and Figure 16 , one side of the powder door frame 31 perpendicular to the movement direction of the sliding module 32 is open, and the sliding module 32 can be loaded into the powder door frame 31 through the open side. A baffle 313 can be installed on the open side to block the opening. A slide can be arranged in the powder door frame 31, and the extension direction of the slide is consistent with the movement direction of the sliding module 32. The sliding module 32 is arranged on the slide and moves along the slide.

[0100] As shown in Figure 21 , the coffee liquid cavity 2112 is formed below the filter screen 213 of the brewing cavity 2111; the bottom of the cavity 211 is provided with a liquid outlet seat 212, the liquid outlet seat 212 is provided with a liquid outlet channel 2121, one end of the liquid outlet channel 2121 is communicated with the coffee liquid cavity 2112, and the other end of the liquid outlet seat 212 extends out of the liquid outlet seat 212 and forms a liquid outlet connector 2122. The machine body frame 1 of the machine body is provided with a liquid guide seat 14, the liquid guide seat 14 is provided with a plug-in interface 141, the liquid guide seat 14 is provided with a liquid guide channel 142 communicated with the plug-in interface 141, and the other end of the liquid guide channel 142 is communicated with the outlet nozzle assembly 17 arranged on the upper part of the machine body through a pipeline, so that the coffee liquid in the coffee liquid cavity 2112 can be sent out through the outlet nozzle assembly 17.

[0101] In the embodiment of the present application, the outlet nozzle assembly 17 is arranged on the upper part of the machine body, so that the space for placing the coffee cup or coffee pot 4 below the brewing cavity unit 2 can be saved, thereby reducing the size of the whole machine in the vertical direction, and the whole machine can be made smaller. The coffee liquid coming out of the brewing cavity unit 2 and entering the coffee liquid cavity 2112 can be sent to the outlet nozzle assembly 17 through the pipeline under the action of the pressure in the brewing cavity 2111, and provided to the user, without additionally configuring a power component to provide power for the coffee liquid flow.

[0102] In some embodiments, as Figure 24As shown, the water supply assembly can include a water tank 151 and a boiler 152 (or heating component) connected to the water tank 151, and a connector 2216 on the upper cover 221 is connected to the boiler 152 through a silica gel tube. Optionally, a three-way joint 153 is arranged on the silica gel tube upstream of the boiler 152, one port of the three-way joint 153 is connected to a one-way valve 156 (to prevent air from entering the water pump 154 when the air pump 155 is working) and the water pump 154 through a silica gel tube, and the other port of the three-way joint 153 is connected to a one-way valve 156 (to prevent water from entering the air pump 155 when the water pump 154 is working) and the air pump 155 through a silica gel tube, so that when the pressure at the tail section of the coffee drip filter in the sealed brewing chamber 2111 is insufficient, the air pump 155 can blow air into the brewing chamber 2111 to maintain a certain pressure required for accelerated drip filtering.

[0103] The working principle of the coffee machine for accelerated drip filtering in the embodiment of the present application is as follows:

[0104] In the initial state, the brewing cavity unit 2 is integrally installed in the body frame 1, wherein the hooks 2153 on the left and right buckles of the cavity assembly 21 are just buckled in the corresponding buckle grooves 13 of the body frame 1, the top cover assembly 22 covers the upper end of the cavity assembly 21, the two connecting heads 2216 of the top cover assembly 22 are connected with the soft rubber part of the joint female seat of the body frame 1, and the powder inlet 2212 of the top cover assembly 22 is sealed by the soft rubber part of the lower end of the powder door 321 of the powder door assembly 3. When the user selects the type and number of coffee drinks on the operation interface of the body and confirms, first, the motor 331 starts to drive the powder door assembly 3 to open the powder inlet 2212 on the top cover assembly 22; then the grinding mechanism starts to grind the powder, and the coffee powder falls into the brewing cavity 2111 through the powder inlet 2212; after the grinding is completed, the motor 331 first drives the inclined groove slider 323, the powder door 321 and the powder door support 322 in the powder door assembly 3 to move horizontally together to cover the powder inlet 2212, and then the motor 331 continues to drive the rack plate 325 to drive the inclined groove slider 323 to move horizontally, and the inclined groove slider 323 drives the powder door 321 to move downward a small distance through the inclined groove 3231 thereon, so that the sealing gasket 324 (made of soft rubber) on the powder door 321 interferes with the flange 2213 (made of hard rubber) on the upper cover 221 by a certain amount, thereby forming a good seal; then the water pump 154 starts to send the water in the water tank 151 into the boiler 152, and after being heated by the boiler 152, the water is sprayed into the brewing cavity 2111 through the top cover assembly 22, and when the hot water at the bottom of the brewing cavity 2111 immerses the coffee powder on the filter screen 213, the brewing cavity 2111 is in a completely sealed state, and the sealed brewing cavity 2111 is automatically pressurized, heated and generates a certain pressure (low pressure) due to water vapor, thereby realizing accelerated drip filtration of coffee; after the water pump 154 stops pumping water and the coffee drip filtration is completed, the elastic buckle 217 on the cavity handle 214 is pressed downward manually to make the hooks of the brewing cavity unit 2 and the body frame 1 disengage, and the handle 2144 on the cavity handle 214 is used to conveniently disengage the brewing cavity unit 2 from the body, open the top cover assembly 22 of the brewing cavity unit 2, pour out the residue and clean, and then install it into the body.

[0105] The coffee machine of the embodiment of the present application can greatly shorten the coffee drip filtration time, has a simple structure, low cost, and can effectively reduce the height of the coffee machine.

[0106] The above description is intended to be illustrative rather than restrictive, and the skilled person in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present disclosure. Moreover, the above examples (or one or more aspects thereof) can be used in combination with each other, and the embodiments can be combined with each other in various combinations or arrangements.

Claims

1. A coffee machine for accelerating drip filtration, comprising a body, characterized in that, The coffee machine also includes: A brewing chamber unit (2) is detachably mounted on the body. The brewing chamber unit (2) includes a chamber assembly (21) and a top cover assembly (22). The chamber assembly (21) has a brewing chamber (2111). The top cover assembly (22) is mounted on the chamber assembly (21) and is used to close or open the upper port of the brewing chamber (2111). The top cover assembly (22) is provided with a powder inlet (2212) and a water inlet. The powder gate assembly (3) includes a powder gate frame (31), a sliding module (32), and a drive mechanism (33). The powder gate frame (31) is fixed to the machine body and has a powder outlet (311). When the brewing chamber unit (2) is installed on the machine body, the powder outlet (311) is located above the powder inlet (2212). The sliding module (32) is installed on the powder gate frame (31), and the drive mechanism (33) is installed on the powder gate frame (31) and connected to the sliding module (32) to drive the sliding module. (32) Move along the powder gate frame (31) to close or open the powder inlet (2212). When the sliding module (32) closes the powder inlet (2212) and the brewing water submerges the coffee powder in the brewing chamber (2111), the accumulated brewing water isolates the coffee liquid outlet (2113) at the bottom of the cavity assembly (21) from the waterless space in the upper part of the brewing chamber (2111), so that the brewing chamber (2111) is in a completely sealed state, so as to maintain a low pressure in the brewing chamber (2111) during the continued brewing process, thereby accelerating drip filtration. The top cover assembly (22) has a flange (2213) disposed around the powder inlet (2212); The sliding module (32) includes a powder door (321), a powder door bracket (322), a slanted slider (323), and a sealing gasket (324). The slanted slider (323) is located on the outside of the powder door bracket (322). The powder door (321) is installed inside the powder door bracket (322). The powder door (321) has a second protrusion (3212) that passes through the powder door bracket (322) and extends into the slanted groove (3231) on the slanted slider (323). The bottom of the powder door (321) extends downward out of the powder door bracket (322). The sealing gasket (324) is fitted onto the bottom of the powder door (321). When the sliding module (32) moves laterally from the position of opening the powder inlet (2212) to above the powder inlet (2212), the powder door bracket (322) is limited and held in that position by the powder door frame (31). The driving mechanism (33) drives the inclined groove slider (323) to continue moving in the lateral direction. The inclined groove (3231) of the inclined groove slider (323) pushes the second protrusion (3212) of the powder door (321) to move the powder door (321) vertically and toward the powder inlet (2212) so that the sealing gasket (324) presses against the flange (2213) and generates a preset interference amount with the flange (2213).

2. The coffee machine with accelerated drip filtration according to claim 1, characterized in that, The top surface of the top cover assembly (22) is provided with a flange (2213) surrounding the powder inlet (2212); when the sliding module (32) closes the powder inlet (2212), the bottom of the sliding module (32) presses against the flange (2213) and generates a preset interference amount with the flange (2213) to seal the powder inlet (2212).

3. The coffee machine with accelerated drip filtration according to claim 2, characterized in that, The top cover assembly (22) includes an upper cover (221) and a lower cover (222); The lower cover (222) is provided with a lower powder inlet channel (2221) and an annular cavity surrounding the lower powder inlet channel (2221). The bottom of the annular cavity is provided with a water outlet (2223) that communicates with the brewing chamber (2111). The upper cover (221) is provided with an upper powder inlet channel (2211), the upper end of the upper powder inlet channel (2211) extends through to the top surface of the upper cover (221) and forms the powder inlet (2212), and the bottom surface of the upper cover (221) is provided with a connecting part (2214) that surrounds the lower port of the upper powder inlet channel (2211) and extends downward. The upper cover (221) is disposed on the lower cover (222). The lower port of the upper powder inlet channel (2211) is tightly connected with the upper port of the lower powder inlet channel (2221). The connecting part (2214) extends into the annular cavity. A water cavity (2222) is formed between the connecting part (2214) and the bottom of the annular cavity. The water cavity (2222) is connected to the water supply component. A first sealing ring (23) is provided between the inner periphery of the connecting part (2214) and the inner wall of the annular cavity. A second sealing ring (24) is provided between the outer periphery of the connecting part (2214) and the outer wall of the annular cavity.

4. The coffee machine with accelerated drip filtration according to claim 3, characterized in that, The upper cover (221) is provided with a water inlet channel (2215). One end of the water inlet channel (2215) is connected to the water cavity (2222), and the other end of the water inlet channel (2215) extends to the side of the upper cover (221) and protrudes outward to form a connector (2216).

5. The coffee machine with accelerated drip filtration according to claim 2, characterized in that, The cavity assembly (21) includes: The cavity (211) has an open upper end and a closed lower end forming the brewing chamber (2111). The bottom of the cavity (211) is provided with a coffee liquid outlet (2113) that communicates with the brewing chamber (2111). A filter screen (213) is disposed in the brewing chamber (2111) near its bottom; The cavity handle (214) includes a first side (2141) and a second side (2142) opposite to each other and a third side (2143) connecting the first side (2141) and the second side (2142) so that the cavity handle (214) can be provided on the circumferential outer side of the cavity (211) in a semi-enclosing manner; A first buckle (215) and a second buckle (216) are respectively disposed on the first side (2141) and the second side (2142), and each includes a protrusion (2151) extending toward each other. At least one first protrusion (2152) is provided on the protrusion (2151). An elastic element (2154) is provided between the first buckle (215) and the second buckle (216) and the cavity handle (214), so that the first buckle (215) and the second buckle (216) can move relative to the cavity handle (214) to move closer to each other and retract inward or move away from each other and expand outward. A spring clip (217) is provided on the third side (2143) and has multiple obliquely arranged guide holes (21711). The first protrusions (2152) on the protrusion (2151) are correspondingly provided in the guide holes (21711) so that when the spring clip (217) moves downward, it drives the first latch (215) and the second latch (216) to retract inward synchronously, and causes the first latch (215) and the second latch (215) to retract inward synchronously. 16) The hooks (2153) on the two opposite sides disengage from the slots (13) of the body, and when the spring buckle (217) moves upward, it drives the first buckle (215) and the second buckle (216) to expand outward synchronously to extend out of the first side (2141) and the second side (2142) respectively, and the hooks (2153) on the two opposite sides of the first buckle (215) and the second buckle (216) respectively engage in the slots (13) on the body. A reset component (219) is located at the bottom of the third side (2143) and acts on the spring clip (217) to apply a force to the spring clip (217) to move it upward and reset it.

6. The coffee machine with accelerated drip filtration according to claim 5, characterized in that, The snap fastener (217) includes a plate-shaped body (2171) and a pressing part (2172) protruding from the upper outer side of the plate-shaped body (2171). The reset component (219) is located below the plate-shaped body (2171) and acts on the plate-shaped body (2171). The plate-shaped body (2171) is provided with two sets of guide holes (21711) arranged vertically. Each set of guide holes (21711) includes two guide holes (21711) arranged in a figure-eight shape. The protrusion (2151) is provided with two first protrusions (2152). The two first protrusions (2152) are respectively located in the two guide holes (21711) of the two sets of guide holes (21711) that are close to it.

7. The coffee machine with accelerated drip filtration according to claim 1, characterized in that, The sliding module (32) also includes a rack plate (325), which is fixed on the inclined groove slider (323), and the rack plate (325) is provided with a rack (3251) extending laterally. The drive mechanism (33) includes a motor connected to a drive gear, which meshes with the rack (3251). When the motor starts, it drives the drive gear to rotate, and the drive gear drives the rack (3251) and the rack plate (325) to move laterally.

8. The coffee machine with accelerated drip filtration according to claim 1, characterized in that, Blind holes (3223) are provided on opposite sides parallel to the direction of movement of the powder door bracket (3222). A column (3224) is connected to the blind hole (3223) by a spring (3225). One end of the column (3224) protrudes from the blind hole (3223) and forms a spherical end. The spherical end is used to abut against the powder door frame (31) or the inclined groove slider (323).

9. The coffee machine with accelerated drip filtration according to claim 5, characterized in that, The brewing chamber (2111) is located below the filter (213) to form a coffee liquid chamber (2112); a liquid outlet seat (212) is provided at the bottom of the chamber (211), and a liquid outlet channel (2121) is provided in the liquid outlet seat (212). One end of the liquid outlet channel (2121) is connected to the coffee liquid chamber (2112), and the other end of the liquid outlet seat (212) extends out of the liquid outlet seat (212) and forms a liquid outlet connector (2122); a liquid guide seat (14) is provided in the body of the machine, and an interface (141) is provided on the liquid guide seat (14). A liquid guide channel (142) is provided in the liquid guide seat (14), one end of which is connected to the interface (141). The other end of the liquid guide channel (142) is connected to the spout assembly (17) located on the upper part of the machine through a pipeline, so that the coffee liquid in the coffee liquid chamber (2112) can be sent out through the spout assembly (17).

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