Bean grinding and coffee extracting device

Abstract

The invention relates to the technical field of portable coffee machines, in particular to a coffee grinding and extracting device which comprises a main machine, a bean bin assembly, a bean grinding assembly, an extracting assembly and a driving assembly are arranged on the main machine, the bean grinding assembly is arranged between the bean bin assembly and the extracting assembly, and the driving assembly drives rotating parts in the bean grinding assembly and the extracting assembly to rotate at the same time; the container cup is detachably fixed on the main machine, and the extraction assembly is located in the container cup. According to the arrangement, the bean bin assembly, the bean grinding assembly and the extraction assembly are arranged on the main machine, the bean grinding function and the extraction function are integrated, bean grinding and extraction can be conducted at the same time, and use is convenient; specifically, coffee beans are placed in the bean bin assembly, the bean bin assembly discharges the beans to the bean grinding assembly, the driving assembly drives rotating parts in the bean grinding assembly and the extraction assembly to rotate at the same time, coffee powder ground by the bean grinding assembly directly enters the rotating extraction assembly to be extracted, the cold extraction effect of the coffee powder can be good, and the working efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of portable coffee machine technology, and specifically to a coffee grinding and extraction device. Background Technology

[0002] Currently, portable coffee machines on the market cannot grind beans and extract coffee simultaneously, resulting in low coffee-making efficiency.

[0003] For example, patent publication number CN222997744U discloses a portable coffee machine, including a body and a drinking cup. The body contains a drive mechanism; the body is detachably connected to a grinding assembly or a water-filling assembly; the grinding assembly or water-filling assembly is connected to the drive mechanism; the extraction powder cup is detachably disposed inside the drinking cup, and the drinking cup is detachably connected to the grinding assembly or water-filling assembly; the grinding assembly grinds coffee powder and delivers it to the extraction powder cup; the water-filling assembly injects water into the extraction powder cup for extraction. In grinding mode, this prior art connects the body, grinding assembly, and extraction powder cup sequentially, with the body driving the grinding assembly to allow the ground coffee powder to enter the extraction powder cup; in extraction mode, the body, water-filling assembly, and extraction powder cup are connected sequentially, with the water-filling assembly injecting water into the extraction powder cup for extraction, and the resulting coffee liquid flowing into the drinking cup after extraction. However, the existing technology requires grinding and extraction to work independently and cannot work simultaneously. Furthermore, the grinding and water-injection components need to be repeatedly installed and removed between the machine body and the extraction powder cup, which is very cumbersome and results in low work efficiency. In addition, the extraction powder cup is fixed, which does not produce good results during cold extraction.

[0004] Therefore, there is still room for improvement and development in existing technologies. Summary of the Invention

[0005] To address the problems of existing technologies, this invention proposes a coffee grinding and extraction device. By incorporating a bean hopper assembly, a grinding assembly, and an extraction assembly on the main unit, the device integrates grinding and extraction functions into one unit. Grinding and extraction can work simultaneously, making it convenient to use. Furthermore, the coffee powder ground by the grinding assembly directly enters the rotating extraction assembly for extraction, resulting in a good cold extraction effect and high work efficiency.

[0006] To achieve the above objectives, the technical solution applied in this invention is as follows: A coffee grinding and extraction device includes a main unit, which is equipped with a bean hopper assembly, a grinding assembly, an extraction assembly, and a drive assembly. The grinding assembly is located between the bean hopper assembly and the extraction assembly. The drive assembly simultaneously drives the rotating parts in both the grinding and extraction assemblies to rotate. A container cup is detachably fixed to the main unit, and the extraction assembly is located inside the container cup. This configuration integrates grinding and extraction functions into one unit, allowing for simultaneous grinding and extraction, making it convenient to use. Specifically, coffee beans are placed in the bean hopper assembly, which then feeds the beans to the grinding assembly. The drive assembly simultaneously drives the rotating parts in both the grinding and extraction assemblies to rotate. The ground coffee directly enters the rotating extraction assembly for extraction, resulting in excellent cold extraction and high efficiency.

[0007] According to the above scheme, the extraction component includes a water supply pipe, a centrifugal filter, and an outer filter. The water supply pipe is located on the main unit and is correspondingly arranged with the centrifugal filter. The centrifugal filter is rotatably installed inside the outer filter, and the outer filter is detachably fixed to the main unit. The centrifugal filter is driven to rotate by a drive component. This arrangement allows water to be supplied to the centrifugal filter through the water supply pipe, ensuring thorough mixing of water and coffee powder. Simultaneously, the centrifugal filter is driven to rotate at high speed by the drive component, causing the extracted coffee liquid to be ejected from the centrifugal filter and enter the outer filter, thus separating the coffee grounds from the coffee liquid. The coffee liquid is then filtered through the outer filter before entering the container cup.

[0008] According to the above scheme, the centrifugal filter screen has a first inner cavity, the outer filter screen has a second inner cavity, and the container cup has a third inner cavity. The centrifugal filter screen is provided with a first filter hole, which connects the first inner cavity and the second inner cavity. The outer filter screen is provided with a second filter hole, which connects the second inner cavity and the third inner cavity. With this configuration, when the centrifugal filter screen is driven to rotate at high speed by the drive component, the extracted coffee liquid can be thrown out through the first filter hole into the outer filter screen (acting as a dehydration process). The coffee liquid in the outer filter screen is then filtered through the second filter hole before entering the container cup.

[0009] According to the above scheme, the first filter hole is located at the upper part of the centrifugal filter screen. This arrangement prevents water from overflowing immediately after entering the centrifugal filter screen, allowing it to fully mix with the coffee powder first.

[0010] According to the above scheme, a limiting shaft is fixed on the centrifugal filter screen, and a bearing seat is provided inside the outer filter screen. The limiting shaft is rotatably mounted on the bearing seat. With this configuration, the centrifugal filter screen can be rotatably mounted inside the outer filter screen through the cooperation of the limiting shaft and the bearing seat, and the centrifugal filter screen will not shake when rotating inside the outer filter screen.

[0011] According to the above scheme, a transmission component is fixed inside the centrifugal filter screen. The transmission component is driven to rotate by a drive assembly, and a locking component is provided between the transmission component and the drive assembly. With this configuration, the drive assembly drives the transmission component to rotate, and the transmission component drives the centrifugal filter screen to rotate.

[0012] According to the above scheme, the drive assembly includes a motor and a drive shaft. The motor output end is connected to the drive shaft. The locking assembly includes a toothed groove on the transmission component and a gear on the drive shaft, with the gear and toothed groove locked together. With this configuration, the motor drives the drive shaft to rotate the transmission component through the locking engagement of the gear and toothed groove.

[0013] According to the above scheme, the grinding assembly includes a fixed grinding disc and a moving grinding disc. The fixed grinding disc is fixed to the bean hopper assembly, and the moving grinding disc is fixed to the extraction assembly. The moving and fixed grinding discs are arranged correspondingly. With this arrangement, the drive assembly drives the centrifugal filter to rotate while simultaneously rotating the moving grinding disc. The moving and fixed grinding discs work together to grind the coffee powder, and during the rotation, the ground coffee powder is evenly thrown into the centrifugal filter.

[0014] According to the above scheme, the bean hopper assembly includes a bean hopper with a bean inlet and a bean outlet. The bean inlet is equipped with a hopper cover for opening or closing the bean inlet; the fixed grinding disc is fixed to the bean outlet of the bean hopper. With this configuration, coffee beans in the bean hopper enter the space between the moving and fixed grinding discs for grinding through the bean outlet.

[0015] According to the above scheme, the host is equipped with a control switch. This configuration makes operation convenient.

[0016] Beneficial effects of this invention: This invention is designed with a bean hopper assembly, a grinding assembly, and an extraction assembly on the main unit, integrating grinding and extraction functions into one unit. Grinding and extraction can work simultaneously, making it convenient to use. Specifically, coffee beans are placed in the bean hopper assembly, which then feeds the beans to the grinding assembly. The drive assembly simultaneously drives the rotating parts in both the grinding and extraction assemblies to rotate. The coffee powder ground by the grinding assembly directly enters the rotating extraction assembly for extraction, resulting in a good cold extraction effect and high work efficiency. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the overall structure of the present invention; Figure 2 yes Figure 1 Enlarged view of position A in the middle.

[0018] In the picture: 1. Control switch; 2. Main unit; 3. Motor; 4. Drive shaft; 5. Water supply pipe; 6. Grinding assembly; 7. Centrifugal filter; 8. Limiting shaft; 9. External filter; 10. Bearing seat; 11. Container cup; 12. Bean hopper; 13. Hopper cover; 14. Fixed grinding disc; 15. Moving grinding disc; 16. Transmission component; 17. First filter hole; 18. Gear groove; 19. Gear. Detailed Implementation

[0019] The technical solution of the present invention will be described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 and Figure 2 As shown, the coffee grinding and extraction device of the present invention includes a main unit 2, which is equipped with a bean hopper assembly, a grinding assembly 6, an extraction assembly, and a drive assembly. The grinding assembly 6 is located between the bean hopper assembly and the extraction assembly. The drive assembly simultaneously drives the rotating parts in both the grinding assembly 6 and the extraction assembly to rotate. A container cup 11 is detachably fixed to the main unit 2, and the extraction assembly is located inside the container cup 11. This configuration integrates grinding and extraction functions into one unit by incorporating the bean hopper assembly, grinding assembly 6, and extraction assembly on the main unit 2. Grinding and extraction can work simultaneously, making it convenient to use. Specifically, coffee beans are placed in the bean hopper assembly, which then feeds the beans to the grinding assembly 6. The drive assembly simultaneously drives the rotating parts in both the grinding assembly 6 and the extraction assembly to rotate. The coffee powder ground by the grinding assembly 6 enters the rotating extraction assembly for extraction, resulting in a good cold extraction effect and high efficiency. The extracted coffee liquid is directly poured into the container cup 11. After extraction, the container cup 11 can be removed from the main unit 2 for drinking.

[0021] The container cup 11 and the main unit 2 are fixedly connected by threads, making them easy to install, disassemble, and clean.

[0022] In this context, the rotating component in the grinding assembly 6 refers to the moving grinding disc 15; the rotating component in the extraction assembly refers to the centrifugal filter 7; and the driving assembly simultaneously drives the centrifugal filter 7 and the moving grinding disc 15 to rotate.

[0023] Furthermore, the extraction assembly includes a water supply pipe 5, a centrifugal filter 7, and an outer filter 9. The water supply pipe 5 is located on the main unit 2, and the water supply pipe 5 is correspondingly arranged with the centrifugal filter 7. The centrifugal filter 7 is rotatably installed inside the outer filter 9, and the outer filter 9 is detachably fixed to the main unit 2. The centrifugal filter 7 is driven to rotate by a drive assembly. In this configuration, water is supplied to the centrifugal filter 7 through the water supply pipe 5, allowing the water to fully mix with the coffee powder. At the same time, the centrifugal filter 7 is driven to rotate at high speed by the drive assembly, allowing the extracted coffee liquid to be thrown out of the centrifugal filter 7 and into the outer filter 9, thereby separating the coffee grounds from the coffee liquid. The coffee liquid is then filtered through the outer filter 9 and enters the container cup 11.

[0024] Among them, the existing portable coffee machines do not have a rotating centrifugal filter 7, resulting in poor extraction effect.

[0025] The external filter 9 and the main unit 2 are fixedly connected by threads, making them easy to install, disassemble, and clean.

[0026] The centrifugal filter 7 can be used as a funnel device for holding coffee powder, as an extraction device for brewing coffee, and as an external filter structure for separating coffee grounds from coffee liquid.

[0027] Furthermore, the centrifugal filter 7 has a first inner cavity, the outer filter 9 has a second inner cavity, and the container cup 11 has a third inner cavity. The centrifugal filter 7 has a first filter hole 17, which connects the first inner cavity and the second inner cavity. The outer filter 9 has a second filter hole, which connects the second inner cavity and the third inner cavity. With this configuration, when the centrifugal filter 7 is driven to rotate at high speed by the drive assembly, the extracted coffee liquid can be thrown out through the first filter hole 17 into the outer filter 9 (acting as a dehydration process). The coffee liquid in the outer filter 9 is then filtered through the second filter hole before entering the container cup 11.

[0028] The first filter hole 17 is located on the side wall of the centrifugal filter 7.

[0029] The second filter hole is located at the bottom of the outer filter screen 9.

[0030] Furthermore, the first filter hole 17 is located on the upper part of the centrifugal filter 7. This arrangement prevents water from overflowing immediately after entering the centrifugal filter 7, allowing it to fully mix with the coffee powder first.

[0031] Furthermore, a limiting shaft 8 is fixed on the centrifugal filter screen 7, and a bearing seat 10 is provided inside the outer filter screen 9. The limiting shaft 8 is rotatably mounted on the bearing seat 10. With this arrangement, the centrifugal filter screen 7 is rotatably mounted inside the outer filter screen 9 through the cooperation of the limiting shaft 8 and the bearing seat 10, and the centrifugal filter screen 7 will not shake when rotating inside the outer filter screen 9.

[0032] The centrifugal filter 7 and the outer filter 9 are detachable and easy to install, remove and clean.

[0033] The limiting shaft 8 can be a stud, used to be threaded to the drive shaft 4 to lock the centrifugal filter 7 onto the drive shaft 4.

[0034] Furthermore, a transmission component 16 is fixed inside the centrifugal filter 7. The transmission component 16 is driven to rotate by a drive assembly, and a locking component is provided between the transmission component 16 and the drive assembly. With this configuration, the drive assembly drives the transmission component 16 to rotate, and the transmission component 16 drives the centrifugal filter 7 to rotate.

[0035] Furthermore, the drive assembly includes a motor 3 and a drive shaft 4. The output end of the motor 3 is connected to the drive shaft 4. The locking assembly includes a toothed groove 18 on the transmission component 16 and a gear 19 on the drive shaft 4, with the gear 19 and the toothed groove 18 locked together. With this configuration, the motor 3 drives the drive shaft 4 to rotate the transmission component 16 under the locked engagement of the gear 19 and the toothed groove 18.

[0036] The gear 19 and the tooth groove 18 are connected by an axial locking mechanism.

[0037] The first end of the drive shaft 4 is connected to the output end of the motor 3, and the second end of the drive shaft 4 passes through the bean hopper assembly and is connected to the transmission component 16 inside the centrifugal filter 7.

[0038] Furthermore, the grinding assembly 6 includes a fixed grinding disc 14 and a movable grinding disc 15. The fixed grinding disc 14 is fixed to the bean hopper assembly, and the movable grinding disc 15 is fixed to the centrifugal filter 7 of the extraction assembly. The movable grinding disc 15 and the fixed grinding disc 14 are arranged correspondingly. With this arrangement, the driving assembly drives the centrifugal filter 7 to rotate while simultaneously rotating the movable grinding disc 15. The movable grinding disc 15 and the fixed grinding disc 14 cooperate to grind the coffee powder, and during the rotation process, the ground coffee powder is evenly thrown into the centrifugal filter 7.

[0039] The moving grinding disc 15 is fixed on the transmission component 16. After assembly, the grinding assembly 6 is located near the top opening of the centrifugal filter screen 7.

[0040] The moving grinding disc 15 is fixed to the centrifugal filter screen 7 as one unit, making it easy to install, disassemble and clean.

[0041] Furthermore, the bean hopper assembly includes a bean hopper 12, which has a bean inlet and a bean outlet. The bean inlet is equipped with a hopper cover 13 for opening or closing the bean inlet. The fixed grinding disc 14 is fixed to the bean outlet of the bean hopper 12. With this configuration, the coffee beans in the bean hopper 12 enter the space between the moving grinding disc 15 and the fixed grinding disc 14 for grinding through the bean outlet.

[0042] The fixed grinding disc 14 is provided with a bean inlet, and a grinding gap and a powder outlet gap are provided between the moving grinding disc 15 and the fixed grinding disc 14; or a powder outlet gap is provided between the moving grinding disc 15 and the transmission component 16.

[0043] The fixed grinding disc 14 and the bean hopper 12 are fixed together. After the outer filter screen 9 and the centrifugal filter screen 7 are disassembled, the fixed grinding disc 14 and the bean hopper 12 can be cleaned easily.

[0044] After the centrifugal filter 7 is assembled, the lower bean inlet of the bean hopper 12 extends into the opening at the top of the centrifugal filter 7.

[0045] Furthermore, the host unit 2 is equipped with a control switch 1. This design facilitates operation.

[0046] This application is relatively small and portable.

[0047] This application may use an external power source or a built-in battery.

[0048] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other modifications under the guidance of the present invention without departing from the spirit and scope of the claims. All of these modifications are within the scope of protection of the present invention.

Claims

1. A coffee grinding and extraction device, characterized in that, include: The host (2) is provided with a bean hopper assembly, a bean grinding assembly (6), an extraction assembly and a drive assembly. The bean grinding assembly (6) is located between the bean hopper assembly and the extraction assembly. The drive assembly simultaneously drives the rotating parts in the bean grinding assembly (6) and the extraction assembly to rotate. The container cup (11) is detachably fixed to the host (2), and the extraction component is located inside the container cup (11).

2. The coffee grinding and extraction device according to claim 1, characterized in that: The extraction assembly includes a water supply pipe (5), a centrifugal filter (7), and an external filter (9). The water supply pipe (5) is located on the main unit (2), and the water supply pipe (5) is correspondingly arranged with the centrifugal filter (7). The centrifugal filter (7) is rotatably installed inside the external filter (9), and the external filter (9) is detachably fixed on the main unit (2). The centrifugal filter (7) is driven to rotate by a drive assembly.

3. The coffee grinding and extraction device according to claim 2, characterized in that: The centrifugal filter (7) has a first inner cavity formed inside, the outer filter (9) has a second inner cavity formed inside, and the container cup (11) has a third inner cavity formed inside; the centrifugal filter (7) is provided with a first filter hole (17), which connects the first inner cavity and the second inner cavity; the outer filter (9) is provided with a second filter hole, which connects the second inner cavity and the third inner cavity.

4. The coffee grinding and extraction apparatus according to claim 3, characterized in that: The first filter hole (17) is located on the upper part of the centrifugal filter (7).

5. The coffee grinding and extraction apparatus according to claim 2, characterized in that: The centrifugal filter (7) is fixed with a limiting shaft (8), and the outer filter (9) is provided with a bearing seat (10). The limiting shaft (8) is rotatably mounted on the bearing seat (10).

6. The coffee grinding and extraction apparatus according to claim 2, characterized in that: The centrifugal filter (7) has a fixed transmission component (16) inside. The transmission component (16) is driven to rotate by a drive assembly. A locking assembly is provided between the transmission component (16) and the drive assembly.

7. A coffee grinding and extraction apparatus according to claim 6, characterized in that: The drive assembly includes a motor (3) and a drive shaft (4). The output end of the motor (3) is connected to the drive shaft (4). The locking assembly includes a tooth groove (18) on the transmission component (16) and a gear (19) on the drive shaft (4). The gear (19) and the tooth groove (18) are locked together.

8. The coffee grinding and extraction apparatus according to claim 1, characterized in that: The grinding assembly (6) includes a fixed grinding disc (14) and a moving grinding disc (15). The fixed grinding disc (14) is fixed on the bean hopper assembly, and the moving grinding disc (15) is fixed on the extraction assembly. The moving grinding disc (15) and the fixed grinding disc (14) are arranged correspondingly.

9. A coffee grinding and extraction apparatus according to claim 8, characterized in that: The bean hopper assembly includes a bean hopper (12), which has a bean inlet and a bean outlet. The bean inlet is provided with a hopper cover (13) for opening or closing the bean inlet. The fixed grinding disc (14) is fixed to the bean outlet of the bean hopper (12).

10. A coffee grinding and extraction apparatus according to claim 2, characterized in that: The host (2) is equipped with a control switch (1).

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