WO2022165893A1

WO2022165893A1 - Coffee brewing device

Info

Publication number: WO2022165893A1
Application number: PCT/CN2021/078929
Authority: WO
Inventors: 王学斌; 周林斌
Original assignee: 广州康宏科技股份有限公司
Priority date: 2021-02-02
Filing date: 2021-03-03
Publication date: 2022-08-11
Also published as: CN112704394A

Abstract

A coffee brewing device, comprising a main bracket (2), a brewing assembly (c) used for placing a coffee capsule brewing box (7), a hydraulic sealing assembly (a), a piercing sealing assembly (b), and a guide member (5). The hydraulic sealing assembly (a), the piercing sealing assembly (b), and the guide member (5) are mounted in the main bracket (2). The guide member (5) passes through the piercing sealing assembly (b) and the hydraulic sealing assembly (a) at the same time. The hydraulic sealing assembly (a) is movably arranged in the main bracket (2) along the guide member (5). A brewing chamber (6) is formed between the hydraulic sealing assembly (a) and the piercing sealing assembly (b). The brewing assembly (c) is placed in the brewing chamber (6). The hydraulic sealing assembly (a) is supported at the bottom of the brewing assembly (c). The coffee brewing device drives the brewing assembly (c) to rise in the brewing chamber (6) by means of the hydraulic sealing assembly (a). When the brewing assembly (c) rises to the top of the brewing chamber (6), the brewing assembly (c) and the piercing sealing assembly (b) tightly press the coffee capsule brewing box (7), and then the piercing sealing assembly (b) pierces the coffee capsule in the coffee capsule brewing box (7), thereby achieving efficient coffee brewing.

Description

A coffee brewing device

technical field

The present invention relates to the technical field of coffee brewing, in particular to a coffee brewing device.

Background technique

Chinese Patent Document No. CN104000494A discloses a mini capsule coffee machine on August 27, 2014, including a casing, a water tank inside the casing, a boiler, a water pump, a capsule accommodating cavity, a conduit, and a casing disposed outside the casing The brewer and drip box are provided, wherein the water outlet end of the conduit is arranged in the capsule accommodating cavity; the brewer is pivotally connected to the casing, and extends outward from the side of the brewer facing the casing with The hollow water jet corresponding to the capsule accommodating cavity. The drip box has at least one waste water collecting tank extending into the first opening and is connected to the casing through the waste water collecting tank, and the drip box can be disassembled from the casing and assembled to the brewer. This mini capsule coffee machine has the phenomenon that the coffee capsules cannot be punctured, and the operation of coffee brewing is very complicated, resulting in low coffee brewing efficiency.

Therefore, further improvement is necessary.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a coffee brewing device with simple structure, convenient operation, high brewing efficiency and strong practicability, so as to overcome the deficiencies in the prior art.

A coffee brewing device designed according to this purpose includes a main support and a brewing assembly for placing a coffee capsule brewing box, and is characterized in that it also includes a hydraulic sealing assembly, a piercing sealing assembly and a guide. The hydraulic pressure The sealing assembly, the piercing sealing assembly and the guide are installed in the main bracket, and the guide passes through the piercing sealing assembly and the hydraulic sealing assembly at the same time. A brewing cavity is formed between the sealing components, a brewing component is placed in the brewing cavity, and the hydraulic sealing component is supported on the bottom of the brewing component. When the hydraulic sealing component moves upward, it drives the brewing component to move upward, and the brewing component moves to brewing. When the top of the cavity is pressed, the coffee capsule brewing box is compressed between the brewing component and the piercing sealing component, so that the piercing sealing component pierces the coffee capsules in the coffee capsule brewing box.

The hydraulic seal assembly includes a main body of the moving hydraulic cabin and a piston, the piston is relatively slidingly arranged at the bottom of the main body of the moving hydraulic cabin, the guide is a sliding rod, the sliding rod passes through the main body and the piston of the moving hydraulic cabin at the same time, and the main body of the moving hydraulic cabin moves along the sliding rod. The upper and lower movables are arranged in the main bracket, the bottom of the piston is provided with a water inlet hole, the top of the piston is combined with the lower opening of the main body of the mobile hydraulic chamber to form a hydraulic chamber, the main bracket is provided with a water pump, a pressure relief valve and a water tank, and the water inlet of the water pump is connected The water tank, the water outlet of the water pump is connected to the water inlet hole of the pressure relief valve, the water outlet hole of the pressure relief valve is connected to the water inlet through hole, and the water inlet hole is connected to the hydraulic chamber. When the coffee is brewed, the water pump will pass the water in the water tank through the pressure relief valve. And the water inlet through hole is drawn into the hydraulic chamber for pressure, so that the main body of the mobile hydraulic chamber moves upward along the sliding rod.

The hydraulic seal assembly further includes a magnetic cover, a first magnet and a first sealing ring. The magnetic cover is installed on the top of the main body of the moving hydraulic chamber, and the first magnet is sandwiched between the magnetic cover and the main body of the moving hydraulic chamber. The upper part is provided with a step, the first sealing ring is sleeved on the step, and the first sealing ring is tightly pressed between the inner side wall of the lower opening of the main body of the moving hydraulic chamber and the piston.

The piercing seal assembly includes a water inlet seal, a water inlet cover, a push orifice plate, a sealing cover and a piercing member, the sliding pull rod passes through the water inlet seal, and the water inlet cover is fixed on the water inlet seal by fasteners. At the bottom, the push orifice plate is slidably sleeved on the cylinder at the bottom of the water inlet seal, a first elastic member is arranged between the push orifice plate and the water inlet seal, the sealing cover is sleeved on the outer periphery of the push orifice plate, and the piercing member It is fixed on the bottom of the cylinder of the water inlet seal by fasteners, and the upper and lower limits are located between the water inlet cover and the piercing member when the orifice plate is pushed to slide.

The upper part of the water inlet seal is provided with a hot water joint, the lower part is provided with a water inlet valve, a water inlet chamber is arranged between the water inlet seal and the water inlet cover, and the water inlet valve is movably arranged in the water inlet chamber, and the water inlet A second elastic member is arranged between the valve and the water inlet cover. When the water inlet valve moves downward, the water inlet chamber is connected with the hot water joint. The water inlet cavity is communicated with the brewing cavity through the first through hole and the second through hole in sequence.

The brewing assembly includes a brewing holder and a deflector, the brewing holder is covered on the top of the deflector, the deflector is installed on the top of the main body of the mobile hydraulic chamber, and the coffee capsule brewing box is placed on the brewing holder. Inside the component, a water outlet pressure valve is arranged between the brewing holder and the flow guide, a water outlet cavity is formed between the brewing holder and the flow guide, the water outlet pressure valve is movably arranged in the water outlet cavity, and the bottom of the brewing holder is There is a second sealing ring, the second sealing ring is sealingly connected with the coffee capsule brewing box, the bottom of the flow guide is provided with a coffee water outlet, the coffee water outlet is communicated with the water outlet cavity, and the coffee capsule brewing box is moved downward when the water outlet pressure valve moves downward. Connected with the water outlet cavity, when the main body of the moving hydraulic chamber moves upwards, the coffee capsule brewing box is moved upward through the deflector and the brewing support in turn, and when the coffee capsule brewing box moves to the top of the brewing cavity, the sealing cover is pushed together with the orifice plate Push up, so that the sealing cover is embedded in the lower recess of the water inlet seal, and the coffee capsule brewing box is pressed between the sealing cover and the brewing support, so that the piercing piece pierces the inner surface of the coffee capsule brewing box. Coffee Capsules.

A magnet cover and a second magnet are arranged between the brewing holder and the flow guide, the second magnet is clamped between the magnet cover and the flow guide, and the magnetic cover is located between the flow guide and the main body of the mobile hydraulic chamber Between them, the first magnet and the second magnet attract each other.

The upper and lower ends of the brewing chamber are provided with openings, the bottom of the water inlet seal passes through the upper end opening of the brewing chamber, and the main body of the moving hydraulic chamber passes through the lower end opening of the brewing chamber and is movably arranged in the lower end opening of the brewing chamber The sealing cover and the piercing member are arranged in the brewing cavity, the side opening of the brewing cavity is arranged, the brewing assembly is laterally arranged on the side opening of the brewing cavity, and the bottom of the guide member is supported on the main bracket The lower end opening of the brewing chamber is provided with a leak-proof bracket, the leak-proof bracket is sleeved on the top outer periphery of the main body of the mobile hydraulic cabin, and a third sealing ring is arranged between the main bracket, the leak-proof bracket and the main body of the mobile hydraulic cabin.

The bottom of the main support is provided with a heating body and a circuit control board, the circuit control board is electrically connected with the heating body and the water pump, the water outlet of the water pump is connected with the water inlet of the heating body, and the water outlet of the heating body is connected with the hot water joint; pressure relief The bottom of the valve is provided with a pressure relief hole, and the pressure relief hole communicates with the water tank.

A third elastic member is arranged between the water inlet seal and the main body of the mobile hydraulic chamber, and the third elastic member is sleeved on the sliding pull rod; a first reinforcing plate is installed between the sliding pull rod and the water inlet seal, and the bottom of the piston is A second reinforcing plate is provided, the sliding pull rod passes through the second reinforcing plate, the lower end of the sliding pull rod is provided with a fastening part, and the sliding pull rod is fixed on the second reinforcing plate by setting fasteners on the fastening part; The openings at both ends are arranged, the upper opening of the main support is covered with an upper cover, and the lower opening of the main support is covered with a bottom cover.

The coffee brewing device of the present invention is provided with a hydraulic sealing component and a piercing sealing component, and the hydraulic sealing component drives the brewing component to rise in the brewing cavity. When the brewing component rises to the top of the brewing cavity, the brewing component and piercing The sealing component compresses the coffee capsule brewing box to prevent the brewing box from shaking when the coffee capsule is pierced, resulting in puncturing failure, and then the piercing sealing component pierces the coffee capsules in the coffee capsule brewing box, so as to achieve high efficiency of coffee Brewing; at the same time, this coffee brewing device only requires the user to put the brewing box into the brewing chamber from the side opening of the brewing chamber, and then press the brewing button on the coffee brewing device to realize automatic coffee. Brewing is very convenient to operate. After the coffee is brewed, the hydraulic water flows back into the water tank through the pressure relief valve to realize the recycling of hydraulic water.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a coffee brewing device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of an exploded structure of a coffee brewing device according to an embodiment of the present invention.

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 .

4 is a cross-sectional view of the overall structure of a coffee brewing device in an embodiment of the present invention.

5 is a cross-sectional view of the overall structure of the coffee brewing device in another direction according to an embodiment of the present invention.

6 is a cross-sectional view of an exploded structure of a coffee brewing device according to an embodiment of the present invention.

FIG. 7 is an enlarged schematic view of the structure at B in FIG. 6 .

FIG. 8 is an enlarged schematic view of the structure at C in FIG. 6 .

FIG. 9 is an enlarged schematic view of the structure at D in FIG. 6 .

FIG. 10 is an exploded cross-sectional view of the coffee brewing device in another direction according to an embodiment of the present invention.

11-13 are schematic diagrams of the brewing process of the coffee brewing device according to an embodiment of the present invention.

FIG. 14 is a front view of an accessory of a ground coffee box according to an embodiment of the present invention.

FIG. 15 is a cross-sectional view of an accessory of a ground coffee box according to an embodiment of the present invention.

FIG. 16 is a front view of an accessory of a medium-sized capsule brewing box according to an embodiment of the present invention.

FIG. 17 is a cross-sectional view of an accessory of a medium-sized capsule brewing box according to an embodiment of the present invention.

FIG. 18 is a front view of the accessories of the large capsule brewing box according to an embodiment of the present invention.

FIG. 19 is a cross-sectional view of an accessory of a large capsule brewing box according to an embodiment of the present invention.

FIG. 20 is a front view of an accessory of a small and medium-sized capsule brewing box according to an embodiment of the present invention.

21 is a cross-sectional view of the accessories of the small and medium-sized capsule brewing box according to an embodiment of the present invention.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and embodiments.

1-21, the coffee brewing device includes a main support 2, a brewing assembly c for placing a coffee capsule brewing box 7, a hydraulic sealing assembly a, a piercing sealing assembly b and a guide, a hydraulic sealing assembly a. The piercing seal assembly b and the guide are installed in the main bracket 2, the piercing seal assembly b is located above the hydraulic seal assembly a, and the guide passes through the piercing seal assembly b and the hydraulic seal assembly a at the same time, and the hydraulic seal assembly a. It is arranged in the main bracket 2 movably up and down along the guide. A brewing cavity 6 is formed between the hydraulic sealing component a and the piercing sealing component b. The brewing component c is placed in the brewing cavity 6, and the hydraulic sealing component a is supported on the brewing At the bottom of the component c, when the hydraulic sealing component a moves upwards, it drives the brewing component c to move upward, and when the brewing component c moves to the top of the brewing chamber 6, it presses the coffee capsule brewing box 7 against the brewing component c and pierces the seal between the components b, so that the piercing sealing component b pierces the coffee capsules in the coffee capsule brewing box 7 . The piercing and sealing assembly b is used to input hot water, pierce and seal the coffee capsule, and can push the coffee leak-proof capsule to separate from the piercing member 19 .

The hydraulic seal assembly a includes a main body 3 of the moving hydraulic chamber and a piston 4, the piston 4 is relatively slidably arranged at the bottom of the main body 3 of the moving hydraulic chamber, and the guide is a sliding rod 5, and the sliding rod 5 passes through the main body 3 of the moving hydraulic chamber and the piston 4 at the same time, The main body 3 of the mobile hydraulic cabin is movable up and down along the sliding rod 5 in the main bracket 2, the bottom of the piston 4 is provided with a water inlet through hole 4.1, and the top of the piston 4 is combined with the lower opening of the main body 3 of the mobile hydraulic cabin to form a hydraulic cabin 11. The main bracket 2 There is a water pump 8, a pressure relief valve 9 and a water tank 10. The water inlet of the water pump 8 is connected to the water tank 10, the water outlet of the water pump 8 is connected to the water inlet hole 9.1 of the pressure relief valve 9, and the water outlet hole 9.2 of the pressure relief valve 9 is connected to the water inlet. The through hole 4.1 and the water inlet through hole 4.1 are connected to the hydraulic chamber 11, the bottom of the pressure relief valve 9 is provided with a pressure relief hole 9.3, the pressure relief hole 9.3 is communicated with the water tank 10, and the water inlet hole 9.1 pushes the inside of the pressure relief valve 9 when water enters. The valve body moves downwards so that the water inlet hole 9.1 is connected to the water outlet hole 9.2, and the pressure relief hole 9.3 is closed at the same time. After the water inlet hole 9.1 stops water inflow, the internal valve body of the pressure relief valve 9 is pushed up and reset by the spring to close. The water inlet hole 9.1, at this time the water outlet hole 9.2 is connected with the pressure relief hole 9.3; when the coffee is brewed, the water pump 8 pumps the water in the water tank 10 through the pressure relief valve 9 and the water inlet through hole 4.1 into the hydraulic chamber 11 for pressurization, The hydraulic water pushes the moving hydraulic chamber body 3 to move upward along the sliding rod 5 .

The hydraulic seal assembly a also includes a magnetic cover plate 12, a first magnet 13 and a first sealing ring 14. The magnetic cover plate 12 is installed on the top of the main body 3 of the mobile hydraulic chamber, and the first magnet 13 is sandwiched between the magnetic cover plate 12 and the mobile hydraulic chamber. Between the main bodies 3, the upper part of the piston 4 is provided with a step, the first sealing ring 14 is tightly sleeved on the step, and the first sealing ring 14 is pressed between the inner side wall of the lower opening of the main body 3 of the mobile hydraulic chamber and the piston 4, A sealing ring can prevent the hydraulic water in the hydraulic chamber 11 from flowing out from the gap between the inner side wall of the lower opening of the main body 3 of the moving hydraulic chamber and the piston 4 .

The piercing seal assembly b includes a water inlet seal 15, a water inlet cover 16, a push orifice plate 17, a sealing cover 18 and a piercing member 19. The sliding pull rod 5 passes through the water inlet seal 15, and the water inlet cover 16 is fixed on the water inlet by screws. The bottom of the water inlet seal 15 pushes the orifice plate 17 to be slidably sleeved on the cylinder at the bottom of the water inlet seal 15. The piercing member 19 is fixed on the bottom of the cylinder of the water inlet seal 15 by screws. The upper and lower limits of the pushing orifice plate 17 are located between the water inlet cover 16 and the piercing member 19 when the orifice plate 17 slides.

The upper part of the water inlet seal 15 is provided with a hot water joint 20, and the lower part is provided with a water inlet valve 21; In the cavity 22, a first compression spring 23 is arranged between the water inlet valve 21 and the water inlet cover 16. When the hot water outlet 20 comes out of hot water, the hot water enters the water inlet cavity 22 and pushes the water inlet valve 21 to move downward ( The water inlet valve 21 controls the pressure of the hot water joint 20 to enter the water, and the water enters when the pressure of the hot water joint 20 is greater than the elastic force of the first compression spring 23), so that the water inlet cavity 22 is communicated with the hot water joint 20, and the water inlet cover 16 A first through hole 16.1 is formed thereon, a second through hole 17.1 is formed on the pushing orifice plate 17, and the water inlet chamber 22 communicates with the brewing chamber 6 through the first through hole 16.1 and the second through hole 17.1 in turn.

The brewing assembly c includes a brewing support member 24 and a guide member 25. The brewing support member 24 is covered on the top of the guide member 25. The guide member 25 is installed on the top of the main body 3 of the mobile hydraulic chamber. The coffee capsule brewing box 7 is placed inside the brewing holder 24, a water outlet pressure valve 26 is arranged between the brewing holder 24 and the guide member 25, and a water outlet cavity 28 is formed between the brewing holder 24 and the guide member 25, and the water outlet pressure valve 26 It is movably arranged in the water outlet cavity 28, the bottom of the brewing holder 24 is provided with a second sealing ring 27, the second sealing ring 27 is sealingly connected with the coffee capsule brewing box 7, and the bottom of the guide member 25 is provided with a coffee water outlet 25.1 , the coffee water outlet 25.1 is communicated with the water outlet cavity 28. When the coffee in the coffee capsule brewing box 7 enters the water outlet cavity 28, the water outlet pressure valve 26 is pushed down, so that the coffee capsule brewing box 7 is communicated with the water outlet cavity 28, and the hydraulic chamber is moved. When the main body 3 moves upward, the guide member 25 and the brewing support member 24 drive the coffee capsule brewing box 7 to move upward in turn. When the coffee capsule brewing box 7 moves to the top of the brewing cavity 6, the sealing cover 18 pushes the orifice plate 17 together. Push up, so that the sealing cover 18 is embedded in the lower recess of the water inlet sealing member 15, and the coffee capsule brewing box 7 is pressed between the sealing cover 18 and the brewing support member 24. At this time, the coffee capsule brewing box 7 is not It will shake, and can prevent the coffee in the coffee capsule brewing box 7 from flowing out of the coffee capsule brewing box 7 from both sides of the top opening of the coffee capsule brewing box 7, and the piercing member 19 pierces the coffee in the coffee capsule brewing box 7. capsule. After the brewing assembly c rises, the height dimension between the coffee water outlet 25.1 and the table top can be increased, so that a container with the highest possible size can be placed.

A magnet cover 29 and a second magnet 30 are arranged between the brewing holder 24 and the flow guide 25, a second compression spring 41 is arranged between the water outlet pressure valve 26 and the magnet cover 29, and the second magnet 30 is clamped on the Between the magnet cover 29 and the deflector 25, the magnetic cover 12 is located between the deflector 25 and the main body 3 of the mobile hydraulic chamber, the first magnet 13 and the second magnet 30 attract each other, so that the brewing component c and the hydraulic The sealing assembly a is tightly attached to prevent the brewing holder 24 and the hydraulic sealing assembly a from disengaging when they move up and down.

The upper and lower ends of the brewing chamber 6 are provided with openings, the bottom of the water inlet seal 15 passes through the upper opening of the brewing chamber 6, and the moving hydraulic chamber body 3 passes through the lower opening of the brewing chamber 6 and is movably arranged in the brewing chamber 6, the sealing cover 18 and the piercing member 9 are arranged in the brewing cavity 6, the side opening of the brewing cavity 6 is arranged, and the brewing component c is laterally arranged on the side opening of the brewing cavity 6, The opening of the brewing holder 24 is upward. When coffee is brewed, the user can put the brewing holder 24 with the coffee capsule brewing box 7 into the brewing chamber 6 through the side opening of the brewing chamber 6, and then press Press the brewing button on the coffee brewing device to realize automatic brewing of coffee, which is very convenient to operate. At the same time, when cleaning the brewing component c, you only need to take the brewing component c out from the side opening of the brewing chamber 6. That is, it is very convenient. The bottom of the guide member 25 is supported on the main bracket 2; the lower end opening of the brewing chamber 6 is provided with a leak-proof bracket 31, and the leak-proof bracket 31 is sleeved on the top outer periphery of the main body 3 of the mobile hydraulic chamber. A third sealing ring 32 is arranged between the bracket 2, the leak-proof bracket 31 and the main body 3 of the mobile hydraulic chamber; the bottom of the brewing chamber 6 is provided with a water seepage hole 2.1, and the water seeping out of the water outlet chamber 28 when the coffee is brewed passes through the water seepage hole 2.1 out onto the drip tray.

The bottom of the main bracket 2 is provided with a heating body 33 and a circuit control board 34, and the circuit control board 34 is electrically connected to the heating body 33 and the water pump 8 respectively. After pressing the button, the circuit control board 34 controls the water pump 8 and the heating body 33 to work to realize coffee brewing. The water outlet is provided with a three-way joint 39, so that the water outlet of the water pump 8 can be connected to the pressure relief valve 9 and the heating element 33 at the same time.

A second push spring 35 is arranged between the water inlet seal 15 and the main body 3 of the moving hydraulic chamber. The second push spring 35 is sleeved on the sliding rod 5. After the hydraulic water in the hydraulic chamber 22 is released, the second push spring 35 pushes The main body 3 of the mobile hydraulic chamber is moved downward to achieve reset, and the hydraulic water in the main body 3 of the mobile hydraulic chamber is squeezed out of the water inlet through hole 4.1, and then flows back to the water tank 10.

A first reinforcement plate 36 is installed between the sliding rod 5 and the water inlet seal 15 , a second reinforcement plate 37 is provided at the bottom of the piston 4 , the sliding rod 5 passes through the second reinforcement plate 37 , and the lower end of the sliding rod 5 is provided with threads 5.1, the sliding rod 5 is fixed on the second reinforcing plate 37 by setting the screw or nut 40 on the thread 5.1. The sliding rod 5 is made of metal material, and its shape is U-shaped or inverted U-shaped, or the sliding rod 5 and the first reinforcing plate 36 are combined into a U-shaped or inverted U-shaped; the water inlet seal 15 is provided with The first positioning hole 15.1, the second positioning hole 2.2 on the main bracket 2, the third positioning hole 3.1 on the main body 3 of the mobile hydraulic chamber, the fourth positioning hole 4.2 on the piston 4, and the second reinforcing plate 37. There is a fifth positioning hole 37.1, and both ends of the opening of the sliding rod 5 pass through the first positioning hole 15.1, the second positioning hole 2.2, the third positioning hole 3.1, the fourth positioning hole 4.2 and the fifth positioning hole 37.1 in sequence.

The upper and lower ends of the main bracket 2 are provided with openings, the upper end opening of the main bracket 2 is covered with an upper cover 1 , and the lower end opening of the main bracket 2 is covered with a bottom cover 38 .

The brewing component c of the coffee brewing device can hold various types (different sizes and heights) of coffee capsule brewing boxes 7, such as brewing coffee powder box accessories 7.1, small capsule brewing box accessories 7.4, medium-sized capsule brewing boxes The brewing box accessories 7.2, large capsule brewing box accessories, etc., are widely used; the bottom of the coffee capsule brewing box 7 is provided with a penetrating part, which is used to pierce the bottom of the coffee capsule during coffee brewing, so that the coffee flows into the water outlet 28 Inside.

How the coffee brewing device works:

After the user presses the brewing button, the water pump 8 starts, and the water in the water tank 10 is pumped to the hydraulic chamber 11 for pressure through the pressure relief valve, and the hydraulic water pushes the main body 3 of the mobile hydraulic chamber to move upward, and drives the brewing component c to brew The cavity 6 moves upward, and when the brewing component c moves to the top of the brewing cavity 6, the sealing cover 18 is pushed up together with the orifice plate 17, so that the sealing cover 18 is embedded in the lower recess of the water inlet seal 15. At this time The upper part of the opening of the coffee capsule brewing box 7 is pressure-sealed with the sealing cover 18, the piercing member 19 is inserted through the upper part of the coffee capsule in the coffee capsule brewing box 7, and the water pump 8 pumps the tap water to the heating body 33 for heating, and the heated high temperature The water flows along the water outlet of the heating body 33 through the hot water joint 20 and enters the water inlet chamber 22, and pushes the water inlet valve 26 to open the water inlet (the pressure of the hydraulic chamber 22 is less than the elastic pressure of the first compression spring 23, so as to ensure the hydraulic chamber 22 is sealed first, and the water inlet valve 26 is then opened for brewing), and then the high-temperature water enters the upper part of the coffee capsule through the water inlet cavity 22, the first through hole 16.1 and the second through hole 17.1 in turn to brew coffee, while the coffee capsule The insertion part at the bottom of the brewing box 7 pierces the bottom of the coffee capsule, so that the brewed coffee enters the water outlet chamber 28 and pushes the water outlet pressure valve 26 to open, so that the coffee flows out of the coffee water outlet 25.1 through the water outlet chamber 28 to achieve Brewing of coffee; after the coffee is brewed, the water pump 8 stops working, the pressure relief hole 9.3 of the pressure relief valve 9 is opened, and at the same time, the second push spring 35 stretches and resets and pushes the mobile hydraulic chamber body 3 back down, and the hydraulic chamber 11 After the water is discharged and the pressure is released, the hydraulic water flows back to the water tank 10 through the water inlet through hole 4.1 and the pressure relief hole 9.3. At this time, the user can take the brewing assembly c out of the brewing chamber 6.

The above are preferred embodiments of the present invention, showing and describing the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various Variations and improvements are intended to fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims

A coffee brewing device, comprising a main support (2) and a brewing component (c) for placing a coffee capsule brewing box (7), characterized in that it further comprises a hydraulic sealing component (a), a piercing sealing component (b) and a guide, the hydraulic seal assembly (a), the pierce seal assembly (b) and the guide are mounted in the main bracket (2), the guide passing through both the pierce seal assembly (b) and the hydraulic seal Component (a), the hydraulic sealing component (a) is arranged in the main bracket (2) movably up and down along the guide, and a brewing cavity (6) is formed between the hydraulic sealing component (a) and the piercing sealing component (b), A brewing component (c) is placed in the bubble chamber (6), the hydraulic sealing component (a) is supported on the bottom of the brewing component (c), and when the hydraulic sealing component (a) moves upward, it drives the brewing component (c) to move upward , when the brewing component (c) moves to the top of the brewing cavity (6), the coffee capsule brewing box (7) is pressed between the brewing component (c) and the piercing sealing component (b), so that the piercing The sealing component (b) pierces the coffee capsules in the coffee capsule brewing box (7).
The coffee brewing device according to claim 1, wherein: the hydraulic seal assembly

(a) including the main body (3) of the moving hydraulic chamber and the piston (4), the piston (4) is relatively slidably arranged at the bottom of the main body (3) of the moving hydraulic chamber, the guide is a sliding rod (5), and the sliding rod (5) simultaneously Passing through the main body (3) of the mobile hydraulic chamber and the piston (4), the main body (3) of the mobile hydraulic chamber is movable up and down along the sliding rod (5) in the main bracket (2), and the bottom of the piston (4) is provided with a water inlet channel. Hole (4.1), the top of the piston (4) and the lower opening of the main body (3) of the mobile hydraulic chamber are combined to form a hydraulic chamber (11). The main support (2) is provided with a water pump (8), a pressure relief valve (9) and a water tank ( 10), the water inlet of the water pump (8) is connected to the water tank (10), the water outlet of the water pump (8) is connected to the water inlet hole (9.1) of the pressure relief valve (9), and the water outlet hole (9.2) of the pressure relief valve (9) It is connected to the water inlet through hole (4.1), and the water inlet through hole (4.1) is connected to the hydraulic chamber (11). When the coffee is brewed, the water pump (8) sends the water in the water tank (10) through the pressure relief valve (9) and the water inlet. The through hole (4.1) is drawn into the hydraulic chamber (11) for pressure, so that the main body (3) of the moving hydraulic chamber moves upward along the sliding rod (5).
The coffee brewing device according to claim 2, wherein: the hydraulic seal assembly

(a) also includes a magnetic cover plate (12), a first magnet (13) and a first sealing ring (14). ) is sandwiched between the magnetic cover plate (12) and the main body (3) of the mobile hydraulic chamber, the upper part of the piston (4) is provided with a step, the first sealing ring (14) is sleeved on the step, and the first sealing ring (14) ) is tightly pressed between the inner side wall of the lower opening of the main body (3) of the moving hydraulic chamber and the piston (4).
The coffee brewing device of claim 3, wherein the piercing seal assembly

(b) Including the water inlet seal (15), the water inlet cover (16), the push orifice plate (17), the sealing cover (18) and the piercing piece (19), the sliding rod (5) passes through the water inlet seal (15), the water inlet cover (16) is fixed on the bottom of the water inlet seal (15) by fasteners, push the orifice plate (17) to slide and sleeve on the cylinder at the bottom of the water inlet seal (15), push A first elastic member (42) is arranged between the orifice plate (17) and the water inlet sealing member (15), the sealing cover (18) is sleeved on the outer periphery of the pushing orifice plate (17), and the piercing member (19) passes through the tight fitting. The fastener is fixed on the bottom of the cylinder of the water inlet seal (15), and the upper and lower limits are located between the water inlet cover (16) and the piercing member (19) when the orifice plate (17) is pushed to slide.
The coffee brewing device according to claim 4, characterized in that: the upper part of the water inlet seal (15) is provided with a hot water joint (20), the lower part is provided with a water inlet valve (21), and the water inlet seal (15). 15) A water inlet chamber (22) is arranged between the water inlet cover (16), the water inlet valve (21) is movably arranged in the water inlet chamber (22), and the water inlet valve (21) and the water inlet cover (16) A second elastic member (23) is arranged therebetween. When the water inlet valve (21) moves downward, the water inlet cavity (22) is communicated with the hot water joint (20), and the water inlet cover (16) is provided with a first through hole. (16.1), the pushing orifice plate (17) is provided with a second through hole (17.1), and the water inlet chamber (22) passes through the first through hole (16.1) and the second through hole (17.1) and the brewing chamber (6) in turn. ) is connected.
The coffee brewing device according to claim 5, characterized in that: the brewing assembly (c) comprises a brewing holder (24) and a guide member (25), and the brew holder (24) is covered with the guide member (24). The top of the flow piece (25), the flow guide piece (25) is installed on the top of the main body (3) of the moving hydraulic chamber, the coffee capsule brewing box (7) is placed inside the brewing support piece (24), and the brewing support piece ( A water outlet pressure valve (26) is arranged between 24) and the flow guide member (25), a water outlet cavity (28) is formed between the brewing holder (24) and the flow guide member (25), and the water outlet pressure valve (26) is movable It is arranged in the water outlet cavity (28), the bottom of the brewing holder (24) is provided with a second sealing ring (27), and the second sealing ring (27) is sealedly connected with the coffee capsule brewing box (7). The bottom of (25) is provided with a coffee water outlet (25.1), the coffee water outlet (25.1) is communicated with the water outlet chamber (28), and the coffee capsule brewing box (7) is connected to the water outlet chamber (28) when the water outlet pressure valve (26) moves downward. 28) is connected, when the main body (3) of the moving hydraulic chamber moves upwards, the coffee capsule brewing box (7) is moved upward through the flow guide member (25) and the brewing support member (24) in turn, and the coffee capsule brewing box (7) When moving to the top of the brewing chamber (6), push the sealing cover (18) together with the orifice plate (17) to the top, so that the sealing cover (18) is embedded in the lower recess of the water inlet seal (15), and the coffee capsule is brewed. The brewing box (7) is pressed between the sealing cover (18) and the brewing holder (24), so that the piercing member (19) pierces the coffee capsules in the coffee capsule brewing box (7).
The coffee brewing device according to claim 6, characterized in that: a magnet cover (29) and a second magnet (30) are arranged between the brewing holder (24) and the air guide (25), Two magnets (30) are clamped between the magnet cover (29) and the flow guide (25), the magnetic cover (12) is located between the flow guide (25) and the main body (3) of the mobile hydraulic chamber, the first The magnet (13) and the second magnet (30) attract each other.
The coffee brewing device according to claim 7, characterized in that: the upper and lower ends of the brewing chamber (6) are provided with openings, and the bottom of the water inlet seal (15) passes through the upper end opening of the brewing chamber (6). , the main body (3) of the moving hydraulic chamber passes through the lower end opening of the brewing chamber (6) and is movably arranged on the lower end opening of the brewing chamber (6), and the sealing cover (18) and the piercing member (9) are arranged on the lower end opening of the brewing chamber (6). Inside the brewing chamber (6), the side opening of the brewing chamber (6) is provided, the brewing assembly (c) is laterally movably arranged on the side opening of the brewing chamber (6), and the bottom of the guide member (25) supports On the main support (2); a leak-proof support (31) is arranged at the opening of the lower end of the brewing chamber (6), and the leak-proof support (31) is sleeved on the outer periphery of the top of the main body (3) of the mobile hydraulic chamber, and the main support (2) ), a third sealing ring (32) is arranged between the leak-proof bracket (31) and the main body (3) of the mobile hydraulic chamber.
The coffee brewing device according to claim 8, characterized in that: a heating body (33) and a circuit control board (34) are arranged at the bottom of the main support (2), and the circuit control board (34) is respectively connected to the heating body (34). 33) The water pump (8) is electrically connected, the water outlet of the water pump (8) is connected to the water inlet of the heating element (33), and the water outlet of the heating element (33) is connected to the hot water joint (20); The bottom is provided with a pressure relief hole (9.3), and the pressure relief hole (9.3) is communicated with the water tank (10).
The coffee brewing device according to any one of claims 4-9, characterized in that: a third elastic member (35) is arranged between the water inlet seal (15) and the main body (3) of the moving hydraulic chamber, and the Three elastic members (35) are sleeved on the sliding rod (5); a first reinforcing plate (36) is installed between the sliding rod (5) and the water inlet seal (15), and the bottom of the piston (4) is provided with a second reinforcing plate (36). Two reinforcing plates (37), the sliding rod (5) passes through the second reinforcing plate (37), the lower end of the sliding rod (5) is provided with a fastening part (5.1), and the sliding rod (5) passes through the fastening part (5.1) ) is provided with fasteners to be fixed on the second reinforcing plate (37); the upper and lower ends of the main bracket (2) are provided with openings, the upper end opening of the main bracket (2) is covered with an upper cover (1), and the main bracket (2) ) is covered with a bottom cover (38).