Full-automatic coffee machine brewing device

Abstract

The invention relates to a full-automatic coffee machine brewing device. The full-automatic coffee machine brewing device structurally and mainly comprises a support 100, an electric push rod 200, a brewing cup 300, a cake residue box 400, a brewing assembly 500 and an electric push rod 600. The brewing assembly 500 is assembled on the support 100 to form an elastic sliding block mechanism. A detachable structure which is attracted and fixed by a magnet is adopted between the brewing cup 300 and the support 100, the brewing cup 300 is connected with the powder adding device 800, and in the coffee brewing process, a cup body of the brewing cup 300 does not need to rotate or translate. The brewing assembly 500 is connected with the pump pressure hot water 700; the electric push rod 200 is used for pushing the extracted pressed powder 802 to a brewing cup opening; the electric push rod 600 is used for scraping the pressed powder 802 into the cake residue box 400; the support 100 is a base of the whole brewing device.

Description

Technical Field

[0001] The disclosure of the present invention relates to the technical field of beverage equipment, and in particular, to a fully automatic coffee machine brewing device. Background Art

[0002] There are more and more types of fully automatic coffee machines on the market, and the existing fully automatic coffee machine brewing devices are used to brew and extract coffee liquid with a fixed amount of coffee powder. The amount of extracted coffee liquid (i.e., cup volume) and coffee concentration are adjusted by the water supply. A large cup volume affects the taste of the coffee. If consumers need to brew a large cup of concentrated coffee liquid, they can only brew twice or multiple times to meet their needs, which has defects in the user experience. In addition, when brewing coffee, the brewing cup of the fully automatic coffee machine on the market needs to rotate or translate or move along an L-shaped trajectory from "filling powder → pressing powder", and its structure is complex. Therefore, in view of the above defects, a fully automatic coffee machine brewing device of the present invention can be suitable for brewing any amount of coffee powder in the range of 7 grams to 30 grams. When a large cup of coffee liquid is required, the amount of powder brewed can be increased. In addition, the cup body of the brewing cup does not need to rotate or translate during the brewing process, and the structure is simplified, which can make up for the shortcomings of existing products of this type. Summary of the invention

[0003] The present invention relates to a fully automatic coffee machine brewing device, the implementation structure of the brewing device mainly includes: Bracket 100, electric push rod 200, brewing cup 300, cake residue box 400, brewing component 500, electric push rod 600, pump-pressed hot water 700, powder adding device 800, coffee powder 801, powder cake 802, powder cake 802A, powder cake 802B, coffee liquid 900; The bracket 100 comprises a mouthpiece 101, a positioning column 102, a magnet 103, a spring 104, a fixing plate 105, a sensor 106, a sensor 107, a guide column 108, and a piston sleeve 109; wherein the sensor 106 and the sensor 107 are mounted on the fixing plate 105; The electric push rod 200 includes a connector 201 and a magnet 202, and the connector 201 and the magnet 202 are fixed to the telescopic end of the electric push rod 200; The brewing cup 300 comprises a powder loading port 301, a cup mouth 302, a filter 303, a dregs discharge sheet 304, a column sleeve 305, a coffee spout 306, a magnetic sheet 307, a piston 308, a magnetic sheet 309, a sealing ring 310, a one-way valve 311, a brewing chamber 312, and an angle 313; wherein the filter 303, the magnetic sheet 309, the sealing ring 310, and the one-way valve 311 are installed on the piston 308, and the piston 308 can move in the brewing chamber 312; there is a coffee liquid flow channel on the piston 308, and the extracted coffee liquid 900 flows through the one-way valve 311 and flows out through the coffee spout 306; The brewing assembly 500 includes a motor 501, a driving gear 502, a driven gear 503, a box cover 504, an internal thread 505, a guide sleeve 506, a water pipe 507, a screw 508, a brewing piston 509, a one-way valve 510, a sealing ring 511, and a sprinkler 512; wherein the water pipe 507, the screw 508, the brewing piston 509, the one-way valve 510, the sealing ring 511, and the sprinkler 512 are installed as a whole, the motor 501 rotates clockwise, and the driving gear 502 drives The driven gear 503, the internal thread 505 on the driven gear 503 meshes with the screw 508, driving the screw 508 and the brewing piston 509 to rotate forward, and vice versa, the motor 501 rotates counterclockwise, driving the brewing piston 509 to rotate backward in the opposite direction; there is a hot water flow channel in the brewing piston 509, and the pump-pressurized hot water 700 flows from the water pipe 507 through the hot water flow channel and the one-way valve 510, and is sprayed out through the spray 511; the brewing assembly 500 is installed on the bracket 100 to form a slider mechanism; The electric push rod 600 includes a powder scraper plate 601, and the powder scraper plate 601 is fixed to the telescopic end of the electric push rod 600; The electric linear actuator 200 and the electric linear actuator 600 are mounted on the bracket 100; The brewing cup 300 is connected to the powder adding device 800; the brewing component 500 is connected to the pumped hot water 700; the electric push rod 200 pushes the extracted powder cake 802 to the brewing cup mouth; the electric push rod 600 scrapes the powder cake 802 into the cake residue box 400; the bracket 100 is the base of the entire brewing device.

[0004] The present invention relates to a fully automatic coffee machine brewing device, characterized in that the coffee liquid extraction structure of the embodiment of the brewing device comprises: filling coffee powder 801 of any amount ranging from 7 grams to 30 grams into a brewing chamber 312 from a powder filling port 301 of a brewing cup 300, a motor 501 rotating clockwise, driving a brewing piston 509 to rotate forward and squeeze the coffee powder 801, until the extrusion generates a reverse force to push the brewing component 500 backward and trigger a sensor 107, the motor 501 stops, and the pre-pressing of the powder is completed; the circuit board controls the motor 501 to rotate counterclockwise for a few seconds, the brewing piston 509 retreats a few millimeters, and pump-pressed hot water 700 is injected to brew the coffee powder 801, then the circuit board controls the motor 501 to rotate clockwise, driving the brewing piston 509 to move forward and squeeze the coffee powder 801, and the high-pressure hot water and the mechanical rotation The coffee liquid 900 is extracted by pressing and squeezing until the reverse force generated by the squeezing pushes the brewing component 500 to retreat and trigger the sensor 107, the motor 501 stops, the pumping hot water 700 is turned off, and one extraction is completed, which can be extracted repeatedly several times; the motor 501 rotates counterclockwise, the screw 508 and the brewing piston 509 retreat and trigger the sensor 106, the motor 501 stops, and the brewing piston 509 is reset. Next, the electric push rod 200 starts and pushes the piston 308 to push the powder cake 802 to the cup mouth 302 of the brewing cup 300. Then, the electric push rod 600 starts, and the powder scraper 601 scrapes the powder cake 802 off, and it falls into the cake residue box 400 along the residue unloading piece 304. Finally, the electric push rod 200 drags the piston 308 to reset, and the electric push rod 600 resets with the powder scraper 601, and the coffee brewing is completed.

[0005] The present invention relates to a fully automatic coffee machine brewing device, characterized in that the brewing cup 300 is installed on the bracket 100 in a detachable structure and is fixed by a structure including but not limited to a magnetic adsorption structure, that is, the column sleeve 305 is installed in alignment with the positioning column 102, the coffee mouth 306 is installed in alignment with the mouth sleeve 101, the magnetic suction sheet 309 buckles the connector 201, the magnet 103 attracts the magnetic suction sheet 307, and the magnet 202 attracts the magnetic suction sheet 309.

[0006] The present invention relates to a fully automatic coffee machine brewing device, which is characterized in that the cup body of the brewing cup 300 does not need to perform rotational or translational motion during the coffee brewing process, the cup bottom of the brewing cup 300 is supported by a bracket 100, and the axial extrusion force generated when pressing powder and extracting coffee liquid 900 is borne and resolved by the bracket 100.

[0007] The present invention relates to a fully automatic coffee machine brewing device, characterized in that the powder filling port 301 is arranged on the side of the brewing cup 300, and the center line of the powder filling port 301 and the center line of the brewing chamber 312 form an angle 313, and the powder filling port 301 adopts a funnel shape including but not limited to a rectangular with four rounded corners.

[0008] The present invention relates to a fully automatic coffee machine brewing device, characterized in that the brewing cup 300 has two magnetic sheets, namely, a magnetic sheet 307 and a magnetic sheet 309, which are attracted and fixed to the magnet 103 and the magnet 202 respectively; wherein the magnetic sheet 309 is a buckle structure, and is movably connected to the connector 201 on the electric push rod 200.

[0009] The present invention relates to a fully automatic coffee machine brewing device, characterized in that the brewing assembly 500 is installed on the bracket 100 to form a slider mechanism, that is, the guide sleeve 506 is installed in alignment with the guide column 108, and the spring 104 and the fixing plate 105 are installed on the guide column 108 to press the brewing assembly 500; the brewing assembly 500 can squeeze the spring 104 to move on the guide column 108, forming an elastic slider mechanism;

[0010] The present invention relates to a fully automatic coffee machine brewing device, characterized in that the brewing component 500 is installed on the bracket 100 to form a slider mechanism. When extracting coffee liquid, the motor 501 rotates clockwise to drive the brewing piston 509 to rotate forward, squeeze the coffee powder 801 in the brewing cup 300, and extract the coffee liquid 900 by squeezing until the extrusion generates a reverse force to push the brewing component 500 backward to trigger the sensor 107, the motor 501 stops, and the extraction is completed; the motor 501 rotates counterclockwise to drive the brewing piston 509 to rotate backward in the opposite direction until the screw 508 triggers the sensor 106, the motor 501 stops, and the brewing piston 509 is reset to the piston sleeve 109.

[0011] The present invention relates to a fully automatic coffee machine brewing device, characterized in that the brewing component 500 is installed on the bracket 100 to form a slider mechanism, and can be filled with different amounts of coffee powder 801 to extract coffee liquid 900, that is, when the amount of coffee powder filled is small, the powder cake 802A is a thin cake, and the screw 508 and the brewing piston 509 rotate and squeeze to extract until a reverse force is generated to push the brewing component 500 back to trigger the sensor 107, the motor 501 stops, and the extraction is completed; conversely, when the amount of coffee powder filled is large, the powder cake 802B is a thick cake, and the screw 508 and the brewing piston 509 also rotate and squeeze to extract until a reverse force is generated to push the brewing component 500 back to trigger the sensor 107, the motor 501 stops, and the extraction is completed.

[0012] The present invention relates to a fully automatic coffee machine brewing device, characterized in that the sensor 106 and the sensor 107 are adopted including but not limited to micro switches or pressure switches.

[0013] The present invention relates to a fully automatic coffee machine brewing device, characterized in that the electric push rod 200 and the electric push rod 600 adopt electric push rods including but not limited to the shapes shown in the figure: the electric push rod 200 and the electric push rod 600 have different strokes and different thrusts.

[0014] The present invention relates to a fully automatic coffee machine brewing device, characterized in that the internal thread 505 is formed by injection molding, including but not limited to placing a nut into a plastic mold of the driven gear 503 .

[0015] The present invention relates to a fully automatic coffee machine brewing device, characterized in that the pump-pressure hot water 700 is high-pressure hot water generated from a water tank → a flow meter → a high-pressure water pump → a heater or a boiler.

[0016] The present invention relates to a fully automatic coffee machine brewing device, characterized in that the powder adding device 800 includes but is not limited to a coffee bean grinding device or an automatic powder adding device.

[0017] The present invention relates to a fully automatic coffee machine brewing device, characterized in that the coffee liquid 900 is extracted concentrated coffee liquid.

[0018] These and other features and advantages of the present invention will be more fully understood from the following detailed description of certain embodiments of the invention taken in conjunction with the accompanying drawings, which are intended to illustrate and not to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a three-dimensional schematic diagram of a fully automatic coffee machine brewing device;

[0020] Figure 2 is a three-dimensional schematic diagram of a brewing cup 300 of the present invention;

[0021] Figure 3 is a cross-sectional structural schematic diagram of the brewing cup 300 of the present invention;

[0022] Figure 4 is another cross-sectional structural schematic diagram of the brewing cup 300 of the present invention;

[0023] Figure 5 is a three-dimensional schematic diagram of the detachable structure of the brewing cup 300 of the present invention;

[0024] Figure 6 is a partial schematic diagram of the screw 508 triggering the sensor 106 of the present invention;

[0025] Figure 7 is a schematic diagram of the assembly of the brewing component 500 and the bracket 100 of the present invention;

[0026] Figure 8 is an exploded schematic diagram of the brewing assembly 500 of the present invention;

[0027] Fig. 9 is a partial schematic diagram of the brewing assembly 500 of the present invention triggering the sensor 107;

[0028] Fig.10 is a cross-sectional structural schematic diagram of an embodiment of the present invention "filling coffee powder 801 into a brewing cup 300";

[0029] Fig.11 It is a cross-sectional structural schematic diagram of an embodiment of the present invention that "after pre-pressing the powder, the circuit board controls the motor 501 to rotate counterclockwise for a few seconds, the brewing piston 509 retreats a few millimeters, and pump-pressurized hot water 700 is injected to brew coffee powder 801";

[0030] Fig.12 It is a cross-sectional structural schematic diagram of an embodiment of the present invention in which a brewing piston 509 squeezes coffee powder 801 to extract coffee liquid 900;

[0031] Fig.13 It is a cross-sectional structural schematic diagram of an embodiment of the present invention in which “the brewing piston 509 is reset and the powder cake 802 is ejected”;

[0032] Fig.14 It is another cross-sectional structural schematic diagram of the embodiment of the present invention "the brewing piston 509 is reset and the powder cake 802 is ejected";

[0033] Fig.15 It is a cross-sectional structural schematic diagram of an embodiment of the present invention "electric push rod 600 scrapes off powder cake 802";

[0034] Fig.16 , Fig.17 They are schematic cross-sectional views of the embodiments of the present invention respectively, wherein “different amounts of coffee powder are loaded to extract coffee liquid 900, and the powder cakes 802A and 802B have different thicknesses”;

[0035] List of main components in the attached figure:

[0036] 100 bracket; 101 mouthpiece, 102 positioning column, 103 magnet, 104 spring, 105 fixing plate, 106 sensor, 107 sensor, 108 guide column, 109 piston sleeve;

[0037] 200 electric push rod; 201 connector, 202 magnet;

[0038] 300 brewing cup; 301 powder filling port, 302 cup mouth, 303 filter screen, 304 slag discharge piece, 305 column sleeve, 306 coffee mouth, 307 magnetic sheet, 308 piston, 309 magnetic sheet, 310 sealing ring, 311 one-way valve, 312 brewing chamber, 313 angle;

[0039] 400 cake crumbs boxes;

[0040] 500 brewing component; 501 motor, 502 driving gear, 503 driven gear, 504 box cover, 505 internal thread, 506 guide sleeve, 507 water pipe, 508 screw rod, 509 brewing piston, 510 one-way valve, 511 sealing ring, 512 sprinkler;

[0041] 600 electric push rod; 601 powder scraper;

[0042] 700 pumps of hot water;

[0043] 800 powder adding device; 801 coffee powder, 802 powder cake, 802A powder cake, 802B powder cake;

[0044] 900 coffee liquid. DETAILED DESCRIPTION

[0045] The present invention is further described below in conjunction with the accompanying drawings and implementation modes. Figure 1 The embodiment of the invention schematically shows an exemplary embodiment of a fully automatic coffee machine brewing device. The fully automatic coffee machine brewing device is designed as a simple structure with novel functions and effective effects, and is applied to beverage equipment and fully automatic coffee machines; its structure mainly includes: a bracket 100, an electric push rod 200, a brewing cup 300, a cake residue box 400, a brewing component 500, and an electric push rod 600; the brewing component 500 is assembled on the bracket 100 to form an elastic slider mechanism; the brewing cup 300 and the bracket 100 are fixed with a detachable structure by magnet adsorption; the brewing cup 300 is connected to the powder adding device 800; the brewing component 500 is connected to the pump-pressed hot water 700; the electric push rod 200 pushes the extracted powder cake 802 to the brewing cup mouth; the electric push rod 600 scrapes the powder cake 802 into the cake residue box 400; the bracket 100 is the base of the entire brewing device.

[0046] Figure 2 , Figure 3 , Figure 4 and Figure 5 The detailed structure of a brewing cup 300 of an exemplary fully automatic coffee machine brewing device according to the present invention is schematically shown. Figure 2 is a three-dimensional schematic diagram of a brewing cup 300. Figure 3 is a cross-sectional structural diagram of the brewing cup 300. Figure 4 is another cross-sectional structural schematic diagram of the brewing cup 300. Figure 5300 is a three-dimensional schematic diagram of a detachable structure of a brewing cup 300, and its structure mainly includes: a powder loading port 301, a cup mouth 302, a filter 303, a dregs unloading sheet 304, a column sleeve 305, a coffee mouth 306, a magnetic sheet 307, a piston 308, a magnetic sheet 309, a sealing ring 310, a one-way valve 311, a brewing chamber 312, and an angle 313; wherein the filter 303, the magnetic sheet 309, the sealing ring 310, and the one-way valve 311 are installed on the piston 308, and the piston 308 can move in the brewing chamber 312; there is a coffee liquid flow channel between the filter 303 and the piston 308, and the extracted coffee liquid flows through the one-way valve 311 and passes through the coffee mouth 3 06 outflow; the brewing cup 300 is installed on the bracket 100 with a detachable structure fixed by magnet adsorption, that is, the column sleeve 305 is installed aligned with the positioning column 102, the coffee mouth 306 is installed aligned with the mouth sleeve 101, the magnetic suction piece 309 buckles the connector 201, the connector 201 is fixed on the electric push rod 200, the magnet 103 attracts the magnetic suction piece 307, and the magnet 202 attracts the magnetic suction piece 309; during the coffee brewing process, the cup body of the brewing cup 300 does not need to rotate or translate, the bottom of the brewing cup 300 is supported by the bracket 100, and the axial extrusion force generated when pressing the powder and squeezing the coffee liquid is borne and resolved by the bracket 100.

[0047] Figure 6 , Figure 7 , Figure 8 and Fig. 9 The detailed structure of the brewing assembly 500 of the fully automatic coffee machine brewing device according to the exemplary embodiment of the present invention is schematically shown. Figure 6 is a partial schematic diagram of the screw 508 triggering the sensor 106, Figure 7 is a schematic diagram of the assembly of the brewing component 500 and the bracket 100, Figure 8 is an exploded schematic diagram of the brewing component 500, Fig. 91 is a partial schematic diagram of the brewing component 500 triggering the sensor 107, and its structure mainly includes: a motor 501, a driving gear 502, a driven gear 503, a box cover 504, an internal thread 505, a guide sleeve 506, a water pipe 507, a screw 508, a brewing piston 509, a one-way valve 510, a sealing ring 511, and a sprinkler 512; wherein the water pipe 507, the screw 508, the brewing piston 509, the one-way valve 510, the sealing ring 511 and the sprinkler 512 are arranged The motor 501 rotates clockwise, the driving gear 502 drives the driven gear 503, the internal thread 505 on the driven gear 503 meshes with the screw 508, driving the screw 508 and the brewing piston 509 to rotate forward, on the contrary, the motor 501 rotates counterclockwise, driving the brewing piston 509 to rotate backward in the opposite direction; there is a hot water flow channel on the brewing piston 509, and the pump-pressed hot water 700 flows from the water pipe 507 through the hot water flow channel and the one-way valve 510, and passes through the sprinkler 511 The brewing assembly 500 is installed on the bracket 100 and can move on the guide column 108. It is compressed by four springs 104 to form an elastic slider mechanism, that is, the guide sleeve 506 is installed in alignment with the guide column 108, the spring 104 is installed on the guide column 108, the fixing plate 105 is installed on the guide column 108, and the sensor 106 and the sensor 107 are installed on the fixing plate 105; when extracting coffee liquid, the motor 501 rotates clockwise to drive the brewing piston 509 to rotate forward, squeeze the coffee powder 801 in the brewing cup 300, and extract the coffee liquid 900 by squeezing, until the extrusion generates a reverse force to push the brewing assembly 500 to retreat and trigger the sensor 107, the motor 501 stops, and the extraction is completed; the motor 501 rotates counterclockwise to drive the screw 508 and the brewing piston 509 to rotate backward in the opposite direction until the screw 508 triggers the sensor 106, the motor 501 stops, and the brewing piston 509 is reset to the piston sleeve 109.

[0048] Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 and Fig.17 The schematic diagram of the structure of a fully automatic coffee machine brewing device for extracting coffee liquid according to the exemplary embodiment of the present invention is shown schematically. Fig.10 is a cross-sectional structural diagram of “filling coffee powder 801 into the brewing cup 300”. Fig.11 It is a cross-sectional structural diagram of "after pre-pressing the powder, the circuit board controls the motor 501 to rotate counterclockwise for a few seconds, the brewing piston 509 retreats a few millimeters, and the pump-pressed hot water 700 is injected to brew the coffee powder 801". Fig.12 It is a cross-sectional structural diagram of a “brewing piston 509 pressing coffee powder 801 to extract coffee liquid 900”. Fig.13It is a cross-sectional structural diagram of "the brewing piston 509 is reset and the powder cake 802 is pushed out to the brewing cup mouth". Fig.14 This is another cross-sectional structural diagram of "the brewing piston 509 is reset to push out the powder cake 802 to the brewing cup mouth". Fig.15 It is a cross-sectional structural diagram of "the electric push rod 600 scraping the powder cake 802 into the cake residue box 400". Fig.16 and Fig.17 1 and 10. The sectional structural diagrams are respectively “loading different amounts of coffee powder to extract coffee liquid 900, and powder cakes 802A and 802B have different thicknesses”, and the structure mainly includes: loading coffee powder 801 of any amount ranging from 7 grams to 30 grams into the brewing chamber 312 from the powder loading port 301 of the brewing cup 300, the motor 501 rotates clockwise to drive the brewing piston 509 to rotate forward and squeeze the coffee powder 801, until the extrusion generates a reverse force to push the brewing component 500 backward and trigger the sensor 107, the motor 501 stops, and the pre-pressing of powder ends; the circuit board controls the motor 501 to rotate counterclockwise for a few seconds, the brewing piston 509 retreats a few millimeters, and pump-pressed hot water 700 is injected to brew the coffee powder 801. Then, the circuit board controls the motor 501 to rotate clockwise to drive the brewing piston 509 forward and squeeze the coffee powder 801. The high-pressure hot water and mechanical rotation squeeze and extract the coffee powder. The coffee liquid 900 is pressed until the reverse force generated by the squeezing pushes the brewing component 500 to retreat and trigger the sensor 107, the motor 501 stops, the pumping hot water 700 is turned off, and one extraction is completed, which can be repeatedly extracted several times; the motor 501 rotates counterclockwise, the screw 508 and the brewing piston 509 retreat and trigger the sensor 106, the motor 501 stops, and the brewing piston 509 is reset. Next, the electric push rod 200 starts and pushes the piston 308 to push the powder cake 802 to the cup mouth 302 of the brewing cup 300. Then, the electric push rod 600 starts and the powder scraper 601 scrapes the powder cake 802 off and drops it into the cake and residue box 400 along the residue unloading piece 304. Finally, the electric push rod 200 drags the piston 308 to reset, and the electric push rod 600 resets with the powder scraper 601, and the coffee brewing is completed. The electric push rod 200 and the electric push rod 600 are installed on the bracket 100.

[0049] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art may make various modifications or equivalent substitutions to the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A fully automatic coffee machine brewing device, the implementation structure of the brewing device includes: A support (100), an electric push rod (200), a brewing cup (300), a cake residue box (400), a brewing component (500), an electric push rod (600), a pump-pressed hot water (700), a powder adding device (800), coffee powder (801), a powder cake (802), a powder cake (802A), a powder cake (802B), and coffee liquid (900); The bracket (100) comprises a mouthpiece (101), a positioning column (102), a magnet (103), a spring (104), a fixing plate (105), a sensor (106), a sensor (107), a guide column (108), and a piston sleeve (109); wherein the sensor (106) and the sensor (107) are mounted on the fixing plate (105); The electric push rod (200) comprises a connector (201) and a magnet (202), wherein the connector (201) and the magnet (202) are fixed to the telescopic end of the electric push rod (200); The brewing cup (300) comprises a powder loading port (301), a cup opening (302), a filter (303), a dregs discharge sheet (304), a column sleeve (305), a coffee spout (306), a magnetic sheet (307), a piston (308), a magnetic sheet (309), a sealing ring (310), a one-way valve (311), a brewing chamber (312), and an angle (313); wherein the filter (303), the magnetic sheet (309), the sealing ring (310), and the one-way valve (311) are mounted on the piston (308), and the piston (308) can move in the brewing chamber (312); a coffee liquid flow channel is provided on the piston (308), and the extracted coffee liquid (900) flows through the one-way valve (311) and flows out through the coffee spout (306); The brewing assembly (500) comprises a motor (501), a driving gear (502), a driven gear (503), a box cover (504), an internal thread (505), a guide sleeve (506), a water pipe (507), a screw rod (508), a brewing piston (509), a one-way valve (510), a sealing ring (511), and a sprinkler (512); wherein the water pipe (507), the screw rod (508), the brewing piston (509), the one-way valve (510), the sealing ring (511), and the sprinkler (512) are installed as a whole. When the motor (501) rotates clockwise, the driving gear (502) drives the driven gear (503), and the driven gear (503) rotates clockwise. 03) is meshed with the screw rod (508), driving the screw rod (508) and the brewing piston (509) to rotate forward, and vice versa, the motor (501) rotates counterclockwise, driving the brewing piston (509) to rotate backward in the opposite direction; a hot water flow channel is provided in the brewing piston (509), and the pump-pressurized hot water (700) flows from the water pipe (507) through the hot water flow channel and the one-way valve (510) and is sprayed out through the spray (511); the brewing assembly (500) is mounted on the bracket (100) to form a slider mechanism; the electric push rod (600) includes a powder scraper (601), and the powder scraper (601) is fixed to the telescopic end of the electric push rod (600); The brewing cup (300) is connected to the powder adding device (800); the brewing assembly (500) is connected to the pump-pressurized hot water (700); the electric push rod (200) pushes the extracted powder cake (802) out to the brewing cup mouth; the electric push rod (600) scrapes the powder cake (802) into the cake residue box (400); the electric push rod (200) and the electric push rod (600) are installed on the bracket (100); the bracket (100) is the base of the entire brewing device.

2. A fully automatic coffee machine brewing device according to claim 1, characterized in that: The brewing cup (300) is installed on the bracket (100) in a detachable structure and is fixed with the aid of a magnetic adsorption structure, that is, the column sleeve (305) is installed in alignment with the positioning column (102), the coffee mouth (306) is installed in alignment with the mouth sleeve (101), the magnetic attraction sheet (309) is buckled with the connector (201), the magnet (103) is attracted to the magnetic attraction sheet (307), and the magnet (202) is attracted to the magnetic attraction sheet (309).

3. The fully automatic coffee brewing device according to claim 1, characterized in that: The cup body of the brewing cup (300) does not need to perform rotational or translational motion during the coffee brewing process; the bottom of the brewing cup (300) is supported by the bracket (100); and the axial extrusion force generated when the coffee powder is compressed and the coffee liquid (900) is extracted is borne by the bracket (100).

4. The fully automatic coffee brewing device according to claim 1, characterized in that: The powder filling port (301) of the brewing cup (300) is arranged on the side of the brewing cup (300), and the center line of the powder filling port (301) and the center line of the brewing chamber (312) form an angle (313), and the powder filling port (301) is in the shape of a rectangular funnel with four rounded corners.

5. The fully automatic coffee brewing device according to claim 1, characterized in that: The brewing cup (300) has two magnetic sheets, namely, a magnetic sheet (307) and a magnetic sheet (309), which are attracted and fixed to the magnet (103) and the magnet (202) respectively; wherein the magnetic sheet (309) is a buckle structure, and is movably connected to the connector (201) on the electric push rod (200).

6. The fully automatic coffee brewing device according to claim 1, characterized in that: The brewing assembly (500) is installed on the bracket (100) to form a slider mechanism, that is, the guide sleeve (506) is installed in alignment with the guide column (108), and the spring (104) and the fixing plate (105) are installed on the guide column (108) to press the brewing assembly (500); the brewing assembly (500) can squeeze the spring (104) to move on the guide column (108), thereby forming a slider mechanism.

7. The fully automatic coffee brewing device according to claim 1, characterized in that: The brewing assembly (500) is mounted on the bracket (100) to form a slider mechanism. When extracting coffee liquid, the motor (501) rotates clockwise to drive the brewing piston (509) to rotate forward, squeeze the coffee powder (801) in the brewing cup (300), and extract the coffee liquid (900) by squeezing until the squeezing generates a reverse force to push the brewing assembly (500) backward to trigger the sensor (107), and the motor (501) stops, and the extraction is completed; the motor (501) rotates counterclockwise to drive the brewing piston (509) to rotate backward in the opposite direction until the screw (508) triggers the sensor (106), and the motor (501) stops, and the brewing piston (509) is reset to the piston sleeve (109).

8. The fully automatic coffee brewing device according to claim 1, characterized in that: The brewing assembly (500) is mounted on the bracket (100) to form a slider mechanism, and can be loaded with different amounts of coffee powder (801) to extract coffee liquid (900). That is, when the amount of coffee powder loaded is small, the powder cake (802A) is a thin cake, and the screw (508) and the brewing piston (509) rotate and squeeze to extract until a reverse force is generated to push the brewing assembly (500) backward to trigger the sensor (107), and the motor (501) stops, and the extraction is completed; conversely, when the amount of coffee powder loaded is large, the powder cake (802B) is a thick cake, and the screw (508) and the brewing piston (509) also rotate and squeeze to extract until a reverse force is generated to push the brewing assembly (500) backward to trigger the sensor (107), and the motor (501) stops, and the extraction is completed.

9. The fully automatic coffee brewing device according to claim 1, characterized in that: The structure of the brewing device for extracting coffee liquid comprises: filling coffee powder (801) into the brewing chamber (312) from the powder filling port (301) of the brewing cup (300), the motor (501) rotating clockwise, driving the brewing piston (509) to rotate forward and squeeze the coffee powder (801), until the extrusion generates a reverse force to push the brewing component (500) backward and trigger the sensor (107), the motor (501) stops, and the pre-pressing of powder ends; the circuit board controls the motor (501) to rotate counterclockwise for a few seconds, the brewing piston (509) rotates in the reverse direction and retreats a few millimeters, and pump-pressurized hot water (700) is injected to brew the coffee powder (801), then the circuit board controls the motor (501) to rotate clockwise, driving the brewing piston (509) to move forward and squeeze the coffee powder (801), and the high-pressure hot water and mechanical rotation squeeze to extract the coffee liquid (900), until the reverse force generated by the extrusion The force pushes the brewing assembly (500) backward to trigger the sensor (107), the motor (501) stops, the pumping hot water (700) stops, and one extraction is completed. The extraction can be repeated several times; the motor (501) rotates counterclockwise, the screw (508) and the brewing piston (509) move backward to trigger the sensor (106), the motor (501) stops, the brewing piston (509) resets, and then the electric push rod (200) starts and pushes the push rod (200) to push the brewing assembly (500) back to trigger the sensor (106). The movable piston (308) pushes the powder cake (802) to the cup mouth (302) of the brewing cup (300), and then the electric push rod (600) is started, and the powder scraper (601) scrapes the powder cake (802) off, and the powder cake falls into the cake residue box (400) along the residue unloading sheet (304). Finally, the electric push rod (200) drags the piston (308) to reset, and the electric push rod (600) resets the powder scraper (601) with it, and the coffee brewing is completed.

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