An extraction device and a bean grinder coffee machine

Abstract

The utility model relates to coffee machine technical field especially points to a kind of extraction device and coffee grinder, including shell, drive assembly is installed on the shell, lifting piece is slidably equipped in shell, lifting piece is driven lifting by drive assembly;Funnel, the funnel is detachably installed on shell;Powder channel, powder outlet and exhaust port are equipped on the powder channel, powder outlet is connected to shell, and powder outlet is correspondingly arranged with funnel;Valve, the valve is installed on lifting piece, valve is correspondingly arranged with powder outlet, for opening or closing powder outlet;Air pump, the air inlet of air pump is connected to exhaust port by pipeline.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, specifically to an extraction device and a coffee grinder. Background Technology

[0002] Traditional coffee grinders grind coffee beans into coffee powder, which then enters the funnel assembly. The coffee powder is then extracted into coffee using hot water. However, during the extraction process, a large amount of hot steam accumulates inside the funnel assembly, forming a high-temperature and high-humidity gas. This gas enters the coffee channel, causing coffee powder to easily adhere to it. The coffee channel is difficult to clean, and after multiple brews, it may become clogged.

[0003] A utility model patent with publication number CN220327295U discloses a coffee grinder with a cooling and dehumidification structure, including a coffee machine, an air pump, and a cooler. The coffee machine contains a grinding system and a funnel assembly, which are connected. The air pump is connected to the cooler via a pipe, and the cooler delivers cold air to the funnel assembly through a cold air output pipe. This prior art uses an air pump to draw in outside air and deliver it to the cooler for cooling. The cooler's pipes lower the temperature to create cold air, which then reaches the funnel assembly through the cold air output pipe, cooling and dehumidifying the funnel assembly. This results in a cool, dry coffee duct, making it less prone to coffee grounds adhering. However, this prior art has a complex structure, high cost, and some moisture still seeps into the coffee duct during the brewing process with hot water and during the process of cold air reaching the funnel assembly.

[0004] Therefore, there is still room for improvement and development in existing technologies. Utility Model Content

[0005] To address the problems of existing technologies, this utility model provides an extraction device and a coffee grinder. By installing a valve on the lifting component and providing a powder outlet and an exhaust port on the powder channel, the lifting component is driven to descend by a drive assembly. The lifting component drives the valve to close the powder outlet, and then an air pump is used to extract air from the inside of the powder channel, thereby keeping the inside of the powder channel dry and preventing powder from sticking to the inner wall of the powder channel during grinding.

[0006] To achieve the above objectives, the technical solution applied in this utility model is as follows: An extraction device includes a housing with a drive assembly mounted on it. A lifting component is slidably disposed within the housing and is driven to rise and fall by the drive assembly. A funnel is detachably mounted on the housing. A powder channel has a powder outlet and an exhaust port, the powder outlet being connected to the housing and corresponding to the funnel. A valve is mounted on the lifting component and corresponding to the powder outlet, used to open or close the powder outlet. An air pump has its inlet connected to the exhaust port via a pipe. This configuration, with the valve on the lifting component and the powder outlet and exhaust port on the powder channel, allows for efficient extraction of coffee powder. When coffee is extracted, the drive assembly lowers the lifting component, causing the valve to close the powder outlet. The air pump then evacuates air from the powder channel, keeping it dry and preventing powder from sticking to the inner wall during grinding.

[0007] According to the above scheme, a drying component is provided inside the exhaust port. This design allows the drying component to absorb moisture within the powder channel, thereby improving the dryness of the powder channel.

[0008] According to the above scheme, a powder channel filter is also provided inside the exhaust port, and the powder channel filter is located below the drying component. This configuration allows for the filtering of powder from the gas by using the powder channel filter.

[0009] According to the above scheme, the lifting component is equipped with a brewing head assembly, which is located above the funnel. The brewing head assembly includes a brewing head and a brewing filter. The brewing head has an inlet and an outlet. The inlet is connected to the outlet of the air pump via a pipe, and the outlet is fixedly connected to the brewing filter. A sealing element is provided between the brewing head and the housing. With this configuration, after extraction is completed, air pressure can be blown through the outlet of the air pump through the brewing head to blow air onto the brewing filter, preventing the filter from clogging. This also reduces the frequency and workload of cleaning the brewing head assembly; the user only needs to disassemble and clean the funnel.

[0010] According to the above scheme, it includes a three-way solenoid valve and a heating pot; the first port of the three-way solenoid valve is connected to the air outlet of the air pump via a pipe, the second port of the three-way solenoid valve is connected to the water inlet of the brewing head via a pipe, and the third port of the three-way solenoid valve is connected to the water outlet of the heating pot via a pipe. With this configuration, when the air pump draws air from the powder channel and blows air onto the brewing filter, ports one and two are open, and port three is closed; when the heating pot dispenses water, ports three and two are open, and port one is closed, making it convenient to use.

[0011] According to the above scheme, the lifting component is provided with an upper limit part and a lower limit part, and the valve is installed between the upper limit part and the lower limit part. A spring is fixed between the valve and the upper limit part. This arrangement makes valve assembly convenient and allows the lifting component to drive the valve to rise and fall. In particular, the spring force makes the valve more reliable when closing the powder outlet.

[0012] According to the above scheme, an anti-rotation component is provided between the lifting component and the housing to prevent the lifting component from rotating.

[0013] According to the above scheme, the drive assembly includes a motor and a stud. The motor is mounted on the housing, and the stud is rotatably mounted inside the housing. The stud and the transmission component are threadedly connected, and the motor drives the stud to rotate. With this configuration, when the motor is working, it drives the stud to rotate. When the stud rotates, it undergoes threaded movement with the transmission component, causing the transmission component to move up and down.

[0014] According to the above scheme, a limiting component is provided between the stud and the housing to prevent the stud from moving up and down.

[0015] The coffee grinder described in this utility model includes the extraction device described above.

[0016] The beneficial effects of this utility model are: This invention is designed such that a valve is installed on the lifting component, and a powder outlet and an exhaust port are provided on the powder channel. When coffee powder is extracted into coffee, the lifting component is driven to descend by the drive component. The lifting component drives the valve to close the powder outlet, and then the air pump is used to evacuate the inside of the powder channel, thereby keeping the inside of the powder channel dry and preventing the powder from sticking to the inner wall of the powder channel during grinding. Attached Figure Description

[0017] Figure 1 This is an exploded view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the powder channel of this utility model; Figure 3 This is a schematic diagram of the overall structure connection of this utility model; Figure 4 This is a diagram showing the grinding process of this utility model. Figure 5 This is a diagram showing the state of the powder extraction process of this utility model; Figure 6 This is a diagram showing the air blowing state of the bubble filter screen according to this utility model.

[0018] In the picture: 1. Drive assembly; 101. Motor; 102. Stud; 2. Lifting component; 21. Upper limit position; 22. Lower limit position; 23. Limiting groove one; 3. Housing; 31. Limiting groove two; 4. Brewing head; 41. Water inlet; 5. Brewing filter; 6. Powder channel; 61. Powder inlet; 62. Powder outlet; 63. Exhaust port; 7. Valve; 71. Spring; 8. Three-way solenoid valve; a. Port one; b. Port two; c. Port three; 9. Air pump; 10. Heating pot; 11. Powder channel filter; 12. Drying assembly; 13. Funnel. Detailed Implementation

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

[0020] like Figures 1 to 6 As shown, the extraction device of this utility model includes a housing 3, on which a driving assembly 1 is installed, and a lifting component 2 is slidably disposed inside the housing 3, the lifting component 2 being driven to rise and fall by the driving assembly 1; a funnel 13, which is detachably installed on the housing 3; a powder channel 6, which has a powder outlet 62 and an exhaust port 63, the powder outlet 62 being connected to the housing 3 and correspondingly disposed with respect to the funnel 13; a valve 7, which is installed on the lifting component 2 and correspondingly disposed with respect to the powder outlet 62, for opening or closing the powder outlet 62; and an air pump 9, whose air inlet is connected to the exhaust port 63 via a pipeline. With this configuration, a valve 7 is installed on the lifting component 2, and a powder outlet 62 and an exhaust port 63 are provided on the powder channel 6. The lifting component 2 is driven to descend by the drive assembly 1. The lifting component 2 drives the valve 7 to close the powder outlet 62. Then, the air pump 9 is used to extract air from the inside of the powder channel 6, thereby keeping the inside of the powder channel 6 dry and preventing the powder from sticking to the inner wall of the powder channel 6 during grinding.

[0021] During grinding, the lifting component 2 is driven to rise by the drive component 1, and the lifting component 2 drives the valve 7 to open the powder outlet 62, so that the powder can fall into the funnel 13. During extraction, the lifting component 2 is driven to fall by the drive component 1, and the lifting component 2 drives the valve 7 to close the powder outlet 62, which can reduce the amount of water vapor entering the powder channel 6. When a small amount of water vapor seeps into the powder channel 6, it can be extracted by the air pump 9, which also has a pressure relief effect. Of course, before grinding, the air pump 9 can also be used to extract air after closing the powder outlet 62.

[0022] The powder channel 6 is provided with a powder inlet 61 for connecting to the grinding system. The powder inlet 61 and the powder outlet 62 are located at both ends of the powder channel 6, and the powder channel 6 is inclined. The powder inlet 61 is located at the higher end of the powder channel 6, and the powder outlet 62 is located at the lower end of the powder channel 6, so that the powder can fall directly into the funnel 13 during the grinding process. The exhaust port 63 is located on the top of the powder channel 6, so that the powder will not leak out from the exhaust port 63 when the powder is fed.

[0023] Preferably, the housing 3 includes an upper housing and a lower housing, which are fixedly connected.

[0024] Of course, to make the valve 7 more effective at closing the powder outlet 62, a sealing ring can also be installed between the valve 7 and the powder outlet 62.

[0025] Furthermore, a drying component 12 is provided inside the exhaust port 63. This arrangement allows the drying component 12 to absorb moisture within the powder channel 6, thereby improving the dryness of the powder channel 6.

[0026] The drying component 12 is preferably a desiccant.

[0027] Furthermore, a powder channel filter 11 is also provided inside the exhaust port 63, and the powder channel filter 11 is located below the drying assembly 12. This arrangement allows the powder in the gas to be filtered out by the powder channel filter 11.

[0028] Furthermore, the lifting component 2 is equipped with a brewing head assembly, which is located above the funnel 13. The brewing head assembly includes a brewing head 4 and a brewing filter 5. The brewing head 4 has an inlet 41 and an outlet. The inlet 41 is connected to the outlet of the air pump 9 via a pipe, and the outlet is fixedly connected to the brewing filter 5. A sealing element is provided between the brewing head 4 and the housing 3. With this configuration, after extraction is completed, air pressure can be blown through the outlet of the air pump 9 through the brewing head 4 to blow air onto the brewing filter 5, preventing the brewing filter 5 from clogging. At the same time, it can also reduce the frequency and workload of cleaning the brewing head assembly. The user only needs to disassemble and clean the funnel 13.

[0029] The sealing element is preferably fixed to the outer wall of the brewing head 4 to prevent powder from splashing out during powder extraction.

[0030] Furthermore, the system includes a three-way solenoid valve 8 and a heating pot 10. Port a of the three-way solenoid valve 8 is connected to the air outlet of the air pump 9 via a pipe; port b of the three-way solenoid valve 8 is connected to the water inlet 41 of the brewing head 4 via a pipe; and port c of the three-way solenoid valve 8 is connected to the water outlet of the heating pot 10 via a pipe. This configuration ensures that when the air pump 9 draws air from the powder channel 6 and blows air onto the brewing filter 5, ports a and b are open, while port c is closed; when the heating pot 10 supplies water, ports c and b are open, while port a is closed, making it convenient to use.

[0031] Furthermore, the lifting component 2 is provided with an upper limit part 21 and a lower limit part 22, and the valve 7 is installed between the upper limit part 21 and the lower limit part 22. A spring 71 is fixed between the valve 7 and the upper limit part 21. This arrangement makes the valve 7 easy to assemble, and allows the lifting component 2 to lift and lower the valve 7. In particular, the elastic force of the spring 71 makes the valve 7 more reliable when closing the powder outlet 62.

[0032] The upper end of the valve 7 is preferably slidably located between the upper limit part 21 and the lower limit part 22. When the valve 7 closes the powder outlet 62, the lifting member 2 can drive the brewing head assembly to move down a certain position, so as to improve the powder extraction effect. The powder outlet 62 is provided with a limiting step that abuts against the lower end of the valve 7.

[0033] Furthermore, an anti-rotation component is provided between the lifting component 2 and the housing 3 to prevent the lifting component 2 from rotating.

[0034] The anti-rotation component preferably includes a limiting groove 23 vertically disposed on the outer wall of the lifting member 2 and a limiting block vertically disposed on the inner wall of the housing 3. The limiting block and the limiting groove 23 are vertically slidably connected, so that the lifting member 2 can only slide up and down and will not rotate. Of course, the positions of the limiting groove 23 and the limiting block can also be interchanged.

[0035] Furthermore, the drive assembly 1 includes a motor 101 and a stud 102. The motor 101 is mounted on the housing 3, and the stud 102 is rotatably mounted inside the housing 3. The stud 102 and the transmission component 2 are threadedly connected, and the motor 101 drives the stud 102 to rotate. With this configuration, when the motor 101 is working, it drives the stud 102 to rotate. When the stud 102 rotates, it undergoes threaded movement with the transmission component 2, causing the transmission component 2 to move up and down.

[0036] Furthermore, a limiting component is provided between the stud 102 and the housing 3 to prevent the stud 102 from moving up and down.

[0037] The limiting assembly preferably includes a limiting groove two transversely disposed on the inner wall of the housing 3 and a limiting member transversely disposed on the stud 102. The limiting member and the limiting groove two are matched to limit the movement of the stud 102, so that the stud 102 can only rotate and will not move up and down. Of course, the positions of the limiting groove two and the limiting member can also be interchanged.

[0038] The coffee grinder described in this utility model includes the extraction device described above.

[0039] 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 forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the scope of protection of the present invention.

Claims

1. An extraction apparatus, characterized in that, include: A housing (3) is provided with a drive assembly (1) installed on the housing (3), and a lifting component (2) is slidably provided inside the housing (3). The lifting component (2) is driven to lift by the drive assembly (1). Funnel (13), which is detachably mounted on housing (3); The powder channel (6) is provided with a powder outlet (62) and an exhaust port (63). The powder outlet (62) is connected to the housing (3) and is correspondingly arranged with the funnel (13). Valve (7), the valve (7) is installed on the lifting component (2), the valve (7) is correspondingly provided with the powder outlet (62), and is used to open or close the powder outlet (62). An air pump (9) has its air inlet connected to an exhaust port (63) via a pipeline.

2. The extraction apparatus according to claim 1, characterized in that: A drying component (12) is provided inside the exhaust port (63).

3. The extraction apparatus according to claim 2, characterized in that: The exhaust port (63) is also provided with a powder channel filter (11), which is located below the drying component (12).

4. The extraction apparatus according to claim 1, characterized in that: The lifting component (2) is provided with a brewing head assembly, which is located above the funnel (13). The brewing head assembly includes a brewing head (4) and a brewing filter (5). The brewing head (4) is provided with an inlet (41) and an outlet. The inlet (41) is connected to the outlet of the air pump (9) through a pipeline. The outlet is fixedly connected to the brewing filter (5). A sealing element is provided between the brewing head (4) and the housing (3).

5. The extraction apparatus according to claim 4, characterized in that: It includes a three-way solenoid valve (8) and a heating pot (10); the first port (a) of the three-way solenoid valve (8) is connected to the air outlet of the air pump (9) through a pipeline, the second port (b) of the three-way solenoid valve (8) is connected to the water inlet (41) of the brewing head (4) through a pipeline, and the third port (c) of the three-way solenoid valve (8) is connected to the water outlet of the heating pot (10) through a pipeline.

6. The extraction apparatus according to claim 1, characterized in that: The lifting component (2) is provided with an upper limit part (21) and a lower limit part (22). The valve (7) is installed between the upper limit part (21) and the lower limit part (22). A spring (71) is fixed between the valve (7) and the upper limit part (21).

7. The extraction apparatus according to claim 1, characterized in that: An anti-rotation component is provided between the lifting component (2) and the housing (3) to prevent the lifting component (2) from rotating.

8. An extraction apparatus according to claim 1, characterized in that: The drive assembly (1) includes a motor (101) and a stud (102). The motor (101) is mounted on the housing (3), and the stud (102) is rotatably mounted inside the housing (3). The stud (102) and the transmission component (2) are threadedly connected. The motor (101) is used to drive the stud (102) to rotate.

9. An extraction apparatus according to claim 8, characterized in that: A limiting component is provided between the stud (102) and the housing (3) to prevent the stud (102) from moving up and down.

10. A coffee grinder, characterized in that: Includes the extraction apparatus according to any one of claims 1-9.

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