Coffee machine handle automatic moving device and pressure coffee machine

Abstract

The invention discloses a coffee machine handle automatic moving device and a pressure coffee machine. The coffee machine comprises a machine body assembly and an extraction handle assembly, the automatic handle moving device comprises a moving towing bracket, a driving motor, a transmission screw rod, a guide rod, a screw rod guide block and a guide rod guide block, the extraction handle assembly is connected with the moving towing bracket in a quick-release mode, the driving motor is connected with the transmission screw rod, and the transmission screw rod is connected with the machine body assembly through a bearing. The guide rod is fixedly connected with the machine body assembly, the guide rod and the transmission screw are located on the same horizontal plane and are parallel, the screw guide block and the guide rod guide block are fixedly connected to the two sides of the movable towing bracket respectively, the screw guide block is in meshing transmission with the transmission screw, the guide rod guide block is matched with the guide rod for guiding, and the drive motor drives the transmission screw to rotate. The screw guide block drives the movable towing bracket and the extraction handle assembly to move to a first position to receive ground coffee powder and then move to a second position to receive high-temperature hot water for brewing and extraction.

Description

Technical Field

[0001] This invention relates to coffee brewing accessories, specifically to an automatic portafilter for a coffee machine. Additionally, this invention also relates to coffee brewing appliances, specifically a pressure coffee machine. Background Technology

[0002] Coffee is one of the world's three major beverages. In current technology, coffee brewing appliances are mainly used on desktops in homes or offices. They are connected to mains electricity via a power cord and use water and coffee powder, coffee packets, coffee capsules, etc. to brew coffee.

[0003] Traditional pressure coffee machines use a pump to pump cold water into a boiler, heating it to the desired coffee-making temperature for extraction. These machines require a separate grinder to prepare the coffee grounds, resulting in numerous accessories, a large footprint, and inconvenience. Furthermore, the lack of integration between coffee grinding and extraction within the machine itself makes storage and use difficult.

[0004] Currently, there are also coffee machines that integrate coffee grinding and extraction into a single unit. However, these machines essentially only integrate the grinding device; the grinding and extraction processes operate independently without coordination. Users still need to manually move the extraction portafilter to different positions during grinding and extraction. Specifically, during grinding, the portafilter must be manually moved below the grinder's outlet, and after grinding, during extraction, it must be manually moved below the water outlet. These machines remain inconvenient to operate and cannot achieve fully automated coffee production. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an automatic coffee machine handle moving device. This automatic coffee machine handle moving device can automatically move the extraction handle to the corresponding position during different processes of grinding and extraction without manual movement. It is convenient to use and facilitates the linkage between the coffee grinding and extraction processes to achieve automatic coffee production.

[0006] The present invention also provides a pressure coffee machine that integrates coffee powder grinding and pressure extraction into one unit, and the two are linked together to achieve automatic coffee production, which is convenient to use and operate.

[0007] The technical solution adopted by the automatic portafilter movement device of the coffee machine of the present invention is as follows: the coffee machine includes a body assembly and an extraction portafilter assembly; the automatic portafilter movement device includes a moving bracket, a drive motor, a transmission screw, a guide rod, a screw guide block, and a guide rod guide block; the extraction portafilter assembly is connected to the lower part of the moving bracket using a quick-release structure; the output shaft of the drive motor is connected to the transmission screw; both ends of the transmission screw are respectively connected to the body assembly through bearings; both ends of the guide rod are respectively fixedly connected to the body assembly; the guide rod and the transmission screw are located on the same horizontal plane. The screw guide block and the guide rod guide block are planar and parallel to each other. They are respectively fixedly connected to both sides of the movable carriage. The screw guide block engages with the transmission screw through a through threaded hole, and the guide rod guide block is adapted to guide the guide rod through a through light hole. When the drive motor drives the transmission screw to rotate, the screw guide block drives the movable carriage and the extraction handle assembly to move axially to a first position, so that the extraction handle assembly receives the ground coffee powder. Then it moves to a second position, so that the extraction handle assembly receives high-temperature hot water to brew and extract the coffee powder.

[0008] The top outer edge of the powder cup of the extraction handle assembly is provided with at least two circumferentially distributed snap-fit ​​lugs, and the outer edge of the bottom opening of the movable bracket is provided with at least two circumferentially distributed slots. The slots are provided with circumferentially distributed guide grooves inside, which are used to insert the snap-fit ​​lugs longitudinally into the slots and then rotate the extraction handle assembly along the guide grooves so that the snap-fit ​​lugs hit the blind end of the slots, thereby realizing the quick-release connection of the extraction handle assembly. The extraction handle assembly can be removed by reversing the operation.

[0009] The fuselage assembly includes a base plate, and a first side plate, a second side plate, an outer end plate, and an inner end plate that are interconnected to form a frame structure and are integrally connected to the base plate.

[0010] The bearings are fixedly connected to the outer end plate and the inner end plate respectively, and the two ends of the guide rod are fixedly connected to the outer end plate and the inner end plate respectively.

[0011] The first side plate and the second side plate are provided with a pair of axial sliding grooves. The two sides of the movable trailer are provided with a pair of sliders, which are respectively disposed in the sliding grooves for sliding connection to enhance the stability of the movable trailer when moving.

[0012] A first position switch and a second position switch are respectively provided on the outer side of the first side plate. A position sensor is fixedly connected to the outer side of the slider located on the first side plate. When the extraction handle assembly moves to the first position, the position sensor closes the first position switch and the drive motor stops working. When the extraction handle assembly moves to the second position, the position sensor closes the second position switch and the drive motor stops working, so that the extraction handle assembly moves and is positioned accurately.

[0013] The first position switch and the second position switch are push-button micro switches, and the position sensor is a pressure block; or, the first position switch and the second position switch are reed switches, and the position sensor is a magnetic block; or, the first position switch and the second position switch are photoelectric switches, and the position sensor is a light-shielding / reflective element.

[0014] The base plate is also provided with a partition, which has a powder inlet and a hot water inlet. When the extraction handle assembly is moved to the first position, the powder cup of the extraction handle assembly is adapted to the powder inlet. When the extraction handle assembly is moved to the second position, the powder cup of the extraction handle assembly is adapted to the hot water inlet.

[0015] The bottom plate is provided with a recessed basin with a bottom opening. The shape of the recessed basin is adapted to the outer contour of the movable carriage and the extraction handle assembly. When the extraction handle assembly is moved to the first position, it can prevent the extraction handle assembly from being removed and avoid powder leakage.

[0016] The technical solution adopted by the pressure coffee machine of the present invention is as follows: The pressure coffee machine of the present invention includes a body assembly, a water tank, a bean hopper for holding coffee beans, a control panel, an extraction port assembly, a boiler assembly for generating hot water by electric heating, a pumping assembly for pumping hot water to brew coffee, a grinding device for grinding coffee beans into coffee powder, and an automatic portafilter movement device. The automatic portafilter movement device includes a moving bracket, a drive motor, a transmission screw, a guide rod, a screw guide block, and a guide rod guide block. The extraction port assembly is connected to the lower part of the moving bracket using a quick-release structure. The output shaft of the drive motor is connected to the transmission screw. Both ends of the transmission screw are respectively connected to the body assembly via bearings. The components are connected, with both ends of the guide rod fixedly connected to the body assembly. The guide rod and the transmission screw are located on the same horizontal plane and parallel to each other. The screw guide block and the guide rod guide block are fixedly connected to both sides of the movable carriage. The screw guide block engages with the transmission screw through a through threaded hole, and the guide rod guide block is adapted to guide the guide rod through a through light hole. When the drive motor drives the transmission screw to rotate, the screw guide block drives the movable carriage and the extraction handle assembly to move axially to a first position, so that the extraction handle assembly receives the ground coffee powder. Then it moves to a second position, so that the extraction handle assembly receives high-temperature hot water to brew and extract the coffee powder.

[0017] The top outer edge of the powder cup of the extraction handle assembly is provided with at least two circumferentially distributed snap-fit ​​lugs, and the outer edge of the bottom opening of the movable bracket is provided with at least two circumferentially distributed slots. The slots are provided with circumferentially distributed guide grooves inside, which are used to insert the snap-fit ​​lugs longitudinally into the slots and then rotate the extraction handle assembly along the guide grooves so that the snap-fit ​​lugs hit the blind end of the slots, thereby realizing the quick-release connection of the extraction handle assembly. The extraction handle assembly can be removed by reversing the operation.

[0018] The fuselage assembly includes a base plate, and a first side plate, a second side plate, an outer end plate, and an inner end plate that are interconnected to form a frame structure and are integrally connected to the base plate.

[0019] The bearings are fixedly connected to the outer end plate and the inner end plate respectively, and the two ends of the guide rod are fixedly connected to the outer end plate and the inner end plate respectively.

[0020] The first side plate and the second side plate are provided with a pair of axial sliding grooves. The two sides of the movable trailer are provided with a pair of sliders, which are respectively disposed in the sliding grooves for sliding connection to enhance the stability of the movable trailer when moving.

[0021] A first position switch and a second position switch are respectively provided on the outer side of the first side plate. A position sensor is fixedly connected to the outer side of the slider located on the first side plate. When the extraction handle assembly moves to the first position, the position sensor closes the first position switch and the drive motor stops working. When the extraction handle assembly moves to the second position, the position sensor closes the second position switch and the drive motor stops working, so that the extraction handle assembly moves and is positioned accurately.

[0022] The first position switch and the second position switch are push-button micro switches, and the position sensor is a pressure block; or, the first position switch and the second position switch are reed switches, and the position sensor is a magnetic block; or, the first position switch and the second position switch are photoelectric switches, and the position sensor is a light-shielding / reflective element.

[0023] The base plate is also provided with a partition, which has a powder inlet and a hot water inlet. When the extraction handle assembly is moved to the first position, the powder cup of the extraction handle assembly is adapted to the powder inlet. When the extraction handle assembly is moved to the second position, the powder cup of the extraction handle assembly is adapted to the hot water inlet.

[0024] The bottom plate is provided with a recessed basin with a bottom opening. The shape of the recessed basin is adapted to the outer contour of the movable carriage and the extraction handle assembly. When the extraction handle assembly is moved to the first position, it can prevent the extraction handle assembly from being removed and avoid powder leakage.

[0025] The beneficial effects of this invention are as follows: The automatic coffee machine handle moving device of this invention includes a moving tray, a drive motor, a transmission screw, a guide rod, a screw guide block, and a guide rod guide block. The extraction handle assembly is connected to the lower part of the moving tray using a quick-release structure. The output shaft of the drive motor is connected to the transmission screw. Both ends of the transmission screw are connected to the machine body assembly via bearings. Both ends of the guide rod are fixedly connected to the machine body assembly. The guide rod and the transmission screw are located on the same horizontal plane and parallel to each other. The screw guide block and the guide rod guide block are fixedly connected to both sides of the moving tray. The screw guide block engages with the transmission screw through a through-threaded hole, and the guide rod guide block is adapted to guide the guide rod through a through-hole. Therefore, when the drive motor drives the transmission screw to rotate, the screw guide block drives the moving tray. The extraction handle assembly moves axially to a first position to receive ground coffee powder, and then moves to a second position to receive hot water for brewing and extraction. This invention overcomes the shortcomings of existing technologies by using a drive motor to rotate the transmission screw in different directions. The screw guide block drives the moving carriage and the extraction handle assembly to move axially to the first position, allowing the extraction handle assembly to receive ground coffee powder. Moving to the second position allows the extraction handle assembly to receive hot water for brewing and extraction. Therefore, it can automatically move the extraction handle to the corresponding position during different grinding and extraction processes, eliminating the need for manual movement. This is convenient and facilitates the interconnection of coffee grinding and extraction processes to achieve automatic coffee production.

[0026] The present invention comprises a pressure coffee machine body assembly, a water tank, a bean hopper for holding coffee beans, a control panel, an extraction handle assembly, a boiler assembly for generating hot water by electric heating, a pumping assembly for pumping hot water to brew coffee, a grinding device for grinding coffee beans into coffee powder, and an automatic portafilter mechanism. The automatic portafilter mechanism includes a moving bracket, a drive motor, a transmission screw, a guide rod, a screw guide block, and a guide rod guide block. The extraction handle assembly is connected to the lower part of the moving bracket using a quick-release structure. The output shaft of the drive motor is connected to the transmission screw. Both ends of the transmission screw are connected to the body assembly via bearings. Both ends of the guide rod are fixedly connected to the body assembly. The guide rod and the transmission screw are located on the same horizontal plane and parallel to each other. The screw guide block and the guide rod guide block are fixedly connected to both sides of the moving bracket. The screw guide block engages with the transmission screw through a through-threaded hole, and the guide rod guide block is adapted to guide the guide rod through a through-hole. When the motor drives the transmission screw to rotate, the screw guide block drives the movable carriage and the extraction handle assembly to move axially to the first position, so that the extraction handle assembly receives the ground coffee powder, and then moves to the second position, so that the extraction handle assembly receives high-temperature hot water to brew and extract the coffee powder. The pressure coffee machine of the present invention overcomes the defects and deficiencies of the prior art and overcomes the prejudice of the prior art in this field. It not only integrates the bean hopper, grinding device, extraction handle assembly, boiler assembly, and pump assembly into one unit, but also realizes the linkage between coffee powder grinding and pressure extraction processes to achieve automatic coffee making. It is easy to use and operate. When making coffee, you only need to put coffee beans into the bean hopper and quickly connect the extraction handle assembly to the movable carriage. The entire coffee making process can be completed automatically on one appliance without the need to transfer equipment, reducing the waiting time for manual intervention. At the same time, it has a high degree of integration, occupies little space, and improves the neatness and uniformity of coffee machine use and storage. It is a multi-functional integrated fully automatic pressure coffee machine. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the pressure coffee machine according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall internal structure of the pressure coffee machine according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the overall structure of the automatic coffee machine handle moving device according to an embodiment of the present invention when the extraction handle assembly is in the second position (extraction condition);

[0030] Figure 4This is a schematic diagram of the overall structure of the automatic coffee machine handle moving device according to an embodiment of the present invention when the extraction handle assembly is in the second position (extraction condition);

[0031] Figure 5 This is a schematic diagram of the overall structure of the automatic coffee machine handle moving device according to an embodiment of the present invention when the extraction handle assembly is in the first position (grinding mode);

[0032] Figure 6 This is a schematic diagram of the overall structure of the automatic coffee machine handle moving device according to an embodiment of the present invention when the extraction handle assembly is in the first position (grinding mode);

[0033] Figure 7 This is an exploded view of the automatic moving device for the coffee machine handle according to an embodiment of the present invention;

[0034] Figure 8 This is an exploded structural diagram of the automatic moving coffee machine handle device according to another perspective of an embodiment of the present invention. Detailed Implementation

[0035] like Figures 1 to 8 As shown, the pressure coffee machine of this embodiment includes a body assembly 1, a water tank 2, a bean hopper 3 for holding coffee beans, a control panel 4, a brewing handle assembly 5, a boiler assembly for generating hot water by electric heating 6, a pumping assembly (not shown) for pumping hot water to brew coffee, a bean grinder 7 for grinding coffee beans into coffee powder, and an automatic coffee machine handle moving device.

[0036] The automatic handle moving device includes a moving bracket 80, a drive motor 81, a transmission screw 82, a guide rod 83, a screw guide block 84, and a guide rod guide block 85. The extraction handle assembly 5 is connected to the lower part of the moving bracket 80 using a quick-release structure. The output shaft of the drive motor 81 is connected to the transmission screw 82. Both ends of the transmission screw 82 are connected to the body assembly 1 via bearings 50. Both ends of the guide rod 83 are fixedly connected to the body assembly 1. The guide rod 83 and the transmission screw 82 are located on the same horizontal plane and are parallel to each other. The screw guide block 84 and the guide rod guide block 85... The rod guide blocks 85 are fixedly connected to both sides of the movable carriage 80. The screw guide block 84 is engaged with the transmission screw 82 through the through threaded hole 840. The guide rod block 85 is adapted to guide the guide rod 83 through the through light hole 850. When the drive motor 81 drives the transmission screw 82 to rotate, the screw guide block 84 drives the movable carriage 80 and the extraction handle assembly 5 to move axially to the first position, so that the extraction handle assembly 5 receives the ground coffee powder. Then it moves to the second position, so that the extraction handle assembly 5 receives high-temperature hot water to brew and extract the coffee powder.

[0037] Specifically, in this embodiment, the top outer edge of the powder cup of the extraction handle assembly 5 is provided with three circumferentially distributed snap-fit ​​lugs 51. Correspondingly, the outer edge of the bottom opening of the movable bracket 80 is provided with three circumferentially distributed slots 801. The interior of the slot 801 is provided with a circumferentially distributed guide groove 802, which is used to insert the snap-fit ​​lugs 51 longitudinally into the slot 801 and then rotate the extraction handle assembly 5 along the guide groove 802 so that the snap-fit ​​lugs 51 abut against the blind end of the slot 801, thereby realizing the quick-release connection of the extraction handle assembly 5. At this time, the handle of the extraction handle assembly 5 is parallel to the axis of the transmission screw 82 to avoid interference between the handle of the extraction handle assembly 5 and the body assembly 1 during movement. When it is necessary to remove the extraction handle assembly 5 for cleaning, the extraction handle assembly 5 can be removed by reversing the operation.

[0038] The body assembly 1 includes a base plate 10, and a first side plate 11, a second side plate 12, an outer end plate 13, and an inner end plate 14 that are interconnected to form a frame structure and integrally connected to the base plate 10. Bearings 50 are fixedly connected to the outer end plate 13 and the inner end plate 14, respectively. The two ends of the guide rod 83 are fixedly connected to the outer end plate 13 and the inner end plate 14, respectively. The base plate 10 also has a partition 15, which has a powder inlet 20 and a hot water inlet 30. When the extraction handle assembly 5 is moved to the first position, the powder cup of the extraction handle assembly 5 is adapted to the powder inlet 20. When the extraction handle assembly 5 is moved to the second position, the powder cup of the extraction handle assembly 5 is adapted to the hot water inlet 30. The bottom plate 10 is provided with a sink basin 110 with a bottom opening. The shape of the sink basin 110 is adapted to the outer contour of the movable bracket 80 and the extraction handle assembly 5. When the extraction handle assembly 5 is moved to the first position, the contour of the sink basin 110 at this position covers the lower outer contour of the extraction handle assembly 5, which can prevent the extraction handle assembly 5 from being accidentally removed and avoid powder leakage.

[0039] Furthermore, a pair of axially oriented sliding grooves 40 are provided on the first side plate 11 and the second side plate 12, and sliders 86 are provided on both sides of the movable carriage 80. The sliders 86 are respectively disposed in the sliding grooves 40 for sliding connection to enhance the stability of the movable carriage 80 during movement.

[0040] Furthermore, a first position switch 71 and a second position switch 72 are respectively provided on the outer side of the first side plate 11. A position sensor 87 is fixedly connected to the outer side of the slider 86 located on the first side plate 11. When the extraction handle assembly 5 moves to the first position, the position sensor 87 closes the first position switch 71 and stops the drive motor 81. When the extraction handle assembly 5 moves to the second position, the position sensor 87 closes the second position switch 72 and stops the drive motor 81, so that the extraction handle assembly 5 moves and is positioned accurately.

[0041] Specifically, in this embodiment, the first position switch 71 and the second position switch 72 are push-button microswitches, and the position sensor 87 is a pressing block. Of course, the position switches and their corresponding position sensors can also be in other forms, for example: the first position switch 71 and the second position switch 72 are reed switches, and the position sensor 87 is a magnetic block; or, the first position switch 71 and the second position switch 72 are photoelectric switches, and depending on the structural form of the different photoelectric switches, the position sensor 87 is a light-shielding / reflective element.

[0042] It should be noted that the control panel 4 and its electrical control device, as well as other necessary electrical and structural components, are not the key points of this invention. Those skilled in the art can directly adopt existing components or make slight modifications based on existing technology, and will not be elaborated further here. In addition, in this embodiment, "axial" refers to the direction of the main shaft of the transmission screw 82, and "circumferential" refers to the circumferential direction of each component.

[0043] The automatic coffee machine handle moving device of the present invention overcomes the defects and shortcomings of the prior art. The drive motor drives the transmission screw to rotate in different directions. The screw guide block drives the moving carriage and the extraction handle assembly to move axially to the first position, so that the extraction handle assembly can receive the ground coffee powder. Then it moves to the second position, so that the extraction handle assembly can receive high-temperature hot water to brew and extract the coffee powder. Therefore, it can automatically move the extraction handle to the corresponding position in different processes of grinding and extraction without manual movement. It is convenient to use and facilitates the linkage between coffee grinding and extraction processes to achieve automatic coffee making. Furthermore, the pressure coffee machine of the present invention overcomes the defects and deficiencies of the prior art and the biases of the prior art in this field. It not only integrates the bean hopper, grinding device, extraction portafilter assembly, boiler assembly, and pump assembly into one unit, but also realizes the linkage between coffee powder grinding and pressure extraction processes to achieve automatic coffee making. It is easy to use and operate. When making coffee, you only need to put coffee beans into the bean hopper and quickly connect the extraction portafilter assembly to the mobile tray. The entire coffee making process can be completed automatically on one appliance without the need to transfer equipment, reducing the waiting time for manual intervention. At the same time, it has a high degree of integration, occupies little space, and improves the neatness and uniformity of coffee machine use and storage. It is convenient to store and use, and is a multi-functional integrated fully automatic pressure coffee machine.

[0044] This invention can be widely applied in the field of coffee brewing equipment.

Claims

1. An automatic portafilter device for a coffee machine, the coffee machine comprising a body assembly (1) and a portafilter assembly (5), characterized in that: The automatic handle moving device includes a moving bracket (80), a drive motor (81), a transmission screw (82), a guide rod (83), a screw guide block (84), and a guide rod guide block (85). The extraction handle assembly (5) is connected to the lower part of the moving bracket (80) using a quick-release structure. The output shaft of the drive motor (81) is connected to the transmission screw (82). Both ends of the transmission screw (82) are connected to the body assembly (1) via bearings (50). Both ends of the guide rod (83) are fixedly connected to the body assembly (1). The guide rod (83) and the transmission screw (82) are located on the same horizontal plane and are parallel to each other. The screw guide block (84), the... The guide rod and guide block (85) are fixedly connected to both sides of the movable carriage (80). The screw guide block (84) is engaged with the transmission screw (82) through the through threaded hole (840). The guide rod and guide block (85) are adapted to guide the guide rod (83) through the through light hole (850). When the drive motor (81) drives the transmission screw (82) to rotate, the screw guide block (84) drives the movable carriage (80) and the extraction handle assembly (5) to move axially to the first position, so that the extraction handle assembly (5) receives the ground coffee powder. Then it moves to the second position, so that the extraction handle assembly (5) receives high-temperature hot water to brew and extract the coffee powder.

2. The automatic coffee machine handle moving device according to claim 1, characterized in that: The top outer edge of the powder cup of the extraction handle assembly (5) is provided with at least two circumferentially distributed snap-fit ​​lugs (51), and the outer edge of the bottom opening of the movable bracket (80) is provided with at least two circumferentially distributed slots (801). The interior of the slot (801) is provided with a circumferentially distributed guide groove (802) for inserting the snap-fit ​​lugs (51) longitudinally into the slot (801) and then rotating the extraction handle assembly (5) along the guide groove (802) so that the snap-fit ​​lugs (51) hit the blind end of the slot (801), thereby realizing the quick-release connection of the extraction handle assembly (5). The extraction handle assembly (5) can be removed by reversing the operation.

3. The automatic coffee machine handle moving device according to claim 1, characterized in that: The fuselage assembly (1) includes a base plate (10), and a first side plate (11), a second side plate (12), an outer end plate (13), and an inner end plate (14) that are connected to each other to form a frame structure and are integrally connected to the base plate (10).

4. The automatic coffee machine handle moving device according to claim 3, characterized in that: The bearings (50) are fixedly connected to the outer end plate (13) and the inner end plate (14) respectively, and the two ends of the guide rod (83) are fixedly connected to the outer end plate (13) and the inner end plate (14) respectively.

5. The automatic coffee machine handle moving device according to claim 3, characterized in that: The first side plate (11) and the second side plate (12) are provided with a pair of axial sliding grooves (40), and the two sides of the movable carriage (80) are provided with a pair of sliders (86). The sliders (86) are respectively arranged in the sliding grooves (40) to adapt to sliding connection, so as to enhance the stability of the movable carriage (80) when moving.

6. The automatic coffee machine handle moving device according to claim 5, characterized in that: A first position switch (71) and a second position switch (72) are respectively provided on the outer side of the first side plate (11). A position sensor (87) is fixedly connected to the outer side of the slider (86) located on the first side plate (11). When the extraction handle assembly (5) moves to the first position, the position sensor (87) closes the first position switch (71) and the drive motor (81) stops working. When the extraction handle assembly (5) moves to the second position, the position sensor (87) closes the second position switch (72) and the drive motor (81) stops working, so that the extraction handle assembly (5) moves and is positioned accurately.

7. The automatic coffee machine handle moving device according to claim 6, characterized in that: The first position switch (71) and the second position switch (72) are push-button microswitches, and the position sensor (87) is a pressing block; or, the first position switch (71) and the second position switch (72) are reed switches, and the position sensor (87) is a magnetic block; or, the first position switch (71) and the second position switch (72) are photoelectric switches, and the position sensor (87) is a light-shielding / reflecting element.

8. The automatic coffee machine handle moving device according to claim 3, characterized in that: The base plate (10) is also provided with a partition (15), which is provided with a powder inlet (20) and a hot water inlet (30). When the extraction handle assembly (5) moves to the first position, the powder cup of the extraction handle assembly (5) is adapted to the powder inlet (20). When the extraction handle assembly (5) moves to the second position, the powder cup of the extraction handle assembly (5) is adapted to the hot water inlet (30).

9. The automatic coffee machine handle moving device according to claim 3, characterized in that: The bottom plate (10) is provided with a sink basin (110) with a bottom opening. The shape of the sink basin (110) is adapted to the outer contour of the movable carriage (80) and the extraction handle assembly (5). When the extraction handle assembly (5) is moved to the first position, it can prevent the extraction handle assembly (5) from being taken out and avoid powder leakage.

10. A pressure coffee machine, characterized in that: The coffee machine includes a water tank (2), a bean hopper (3) for holding coffee beans, a control panel (4), a boiler assembly (6) for generating hot water by electric heating, a pumping assembly for pumping hot water to brew coffee, a grinding device (7) for grinding coffee beans into coffee powder, and an automatic portafilter for the coffee machine according to any one of claims 1 to 9.

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