Coffee extracting and brewing assembly and coffee machine

Abstract

The coffee extracting and brewing assembly comprises a brewing device, the brewing device comprises a cup base and a brewing cup, the brewing cup comprises a cup cylinder and a piston, in the initial state, the brewing device is vertically arranged, the brewing cup is vertically contained in the cup base, the first end of the brewing cup faces upwards and is exposed out of the cup base, and the second end of the brewing cup faces upwards and is exposed out of the cup cylinder. The rotating shaft is arranged in the diameter direction of the brewing cup, the driving mechanism is used for driving the brewing device to rotate around the rotating shaft, in the residue discharging state, the brewing device rotates forwards to the vertical inverted state so that the first end of the brewing cup faces downwards, and the cup base is limited and stopped by a first limiting structure; therefore, the driving mechanism drives the brewing cup to move vertically relative to the cup base until the cup opening of the first end of the brewing cup is adjacent to the cup base. During residue discharging, residue powder can be prevented from remaining at the cup opening of the brewing cup, the cleanliness of the coffee machine can be guaranteed, the height of the machine body does not need to be additionally increased, and the use friendliness of the coffee machine is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of coffee machines, and in particular to a coffee extraction and brewing component and a coffee machine. Background Art

[0002] The coffee-making process of a coffee machine generally includes steps such as grinding beans, filling, tamping, brewing, removing residues, and cleaning. Among them, the brewing mechanism is a key component to complete the above steps. For example, the Chinese invention patent "Coffee Machine Brewing Mechanism" with the application number CN202411457336.0 (publication number CN119214480A), the Chinese invention patent "A Coffee Machine Brewing Device with a Heating Function" with the application number CN202411204282.7 (publication number CN118844805A), etc.

[0003] Furthermore, in the existing coffee brewing structure, a piston is generally arranged in the brewing cup, and the internal piston is driven by a mechanism to move up and down to realize actions such as tamping and brewing of coffee powder and removing residues. For example, the Chinese utility model patent "Fully Automatic or Semi-Automatic Coffee Machine Brewer" with the patent number ZL200820163773.1 (publication number CN201260608Y) discloses a coffee machine brewer, which includes a machine shell, and a cylinder body for brewing coffee and a piston body that can move up and down in the cylinder body are arranged in the machine shell; another example is the Chinese invention patent "A Coffee Machine Coffee Brewing Mechanism" with the application number CN202210691878.9 (publication number CN115104914A), which includes a brewing tank, the lower end of a rotating shaft is connected to a connecting rod, one end of the connecting rod is connected to a lower ejector rod, an upper ejector rod is arranged in the upper part of the brewing tank, and piston assemblies are connected to the upper end of the lower ejector rod and the lower end of the upper ejector rod.

[0004] When removing residues, a driving mechanism is used to drive the piston to push the coffee residues out of the brewing cup to realize the residue removal action. However, since the cup mouth is still upward or inclined, residue powder will remain at the edge of the cup body during the residue removal process, affecting the cleanliness of the coffee machine and thus the user experience. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a coffee extraction and brewing component that can avoid residue powder remaining during residue removal in view of the prior art.

[0006] The second technical problem to be solved by the present invention is to provide a coffee extraction and brewing component that can avoid residue powder remaining during residue removal and has a high residue removal efficiency in view of the prior art.

[0007] The third technical problem to be solved by the present invention is to provide a coffee extraction and brewing component that can avoid residue powder remaining during residue removal and does not require an additional increase in the height of the machine body in view of the prior art.

[0008] The fourth technical problem to be solved by the present invention is to provide a coffee machine with the above coffee extraction and brewing assembly in view of the prior art.

[0009] The technical solution adopted by the present invention to solve at least one of the above technical problems is: a coffee extraction and brewing assembly, including a brewer, the brewer includes a cup holder and a brewing cup, wherein, the brewing cup includes a cylindrical cup tube and a piston embedded in the first end with a cup mouth of the cup tube, a filter plate is covered on the top surface of the piston, in the initial state, the above brewer is vertically placed upright, the above brewing cup is vertically accommodated in the cup holder, and the first end faces upward and is exposed outside the cup holder, and it is characterized in that

[0010] It further includes a rotating shaft arranged along the diameter direction of the above brewing cup and a driving mechanism for driving the above brewer to rotate around the rotating shaft, and, in the slag discharging state, the above brewer rotates forward to a vertically inverted state so that the first end of the brewing cup faces downward, and the above cup holder is limited by a first limiting structure to stop, so that the above driving mechanism drives the brewing cup to move upward relative to the cup holder to make the cup mouth of the first end of the brewing cup adjacent to the above cup holder.

[0011] Furthermore, the brewing cup is movably inserted in the above cup holder along its own length direction. In the slag discharging state, as the brewing cup moves upward, the second end of the brewing cup can be exposed outside the cup holder and located in the upper space of the brewer (the position where the first end of the brewing cup is located in the initial state). In this way, there is no need to design the height of the cup holder very high, and a cup holder with a lower height can also meet the installation of the brewing cup, thus being able to better avoid the increase in the height of the fuselage.

[0012] Furthermore, the frictional force between the piston and the inner peripheral surface of the cup tube of the brewing cup is greater than the driving force for driving the above brewing cup to rotate by the above driving mechanism in the initial state, and less than the driving force for driving the brewing cup to move upward relative to the cup holder by the above driving mechanism in the slag discharging state. In this way, the piston can rotate synchronously with the cup tube in the initial state, ensuring the overall rotation of the brewer in the initial state, and when the brewing cup moves upward relative to the cup holder in the slag discharging state, the piston can move downward synchronously relative to the cup tube of the brewing cup, so as to use the piston to push the slag powder out of the brewing cup, and cooperate with the gravity of the slag powder itself to further improve the slag discharging efficiency.

[0013] Furthermore, in the slag discharging state, the piston is stationary relative to the cup holder. On the one hand, it is beneficial to increase the relative movement between the piston and the cup tube, so as to facilitate the piston to push the slag powder out of the brewing cup and better improve the slag discharging efficiency. On the other hand, it is beneficial to ensure the internal structural stability of the coffee extraction and brewing assembly in the slag discharging state.

[0014] Further, the brewing cup is slidably mounted on the cup holder along its own length direction. The driving mechanism includes a fixedly arranged driving motor. One end of the rotating shaft is fixed on the output shaft of the driving motor, and the other end is rotatably mounted on the first shaft seat, and the first shaft seat is integrally provided on the piston. On the one hand, it can make the brewing cup move upward smoothly relative to the cup holder in the slag discharging state, and on the other hand, it is beneficial to keep the piston stationary relative to the cup holder in the slag discharging state.

[0015] Further, the rotating shaft is arranged in the second end of the cup cylinder. The pistons respectively extend along the length direction of the cup cylinder to form extension blocks, and the first shaft seat and the motor seat for mounting the driving motor are respectively formed at the ends of the extension blocks. A sliding port is penetrated through the second end of the cup cylinder along its own length direction inside and outside. The motor seat is embedded in the sliding port. And when the cup cylinder of the brewing cup moves relative to the cup holder, the motor seat can move synchronously along the sliding port, and a through hole for rotatably embedding the driving motor and its motor seat is formed on the cup holder. It realizes the integral setting of the first shaft seat on the piston, and at the same time can also realize the stable installation of the driving motor, and is beneficial to ensure the overall rotation of the brewer in the initial state and the synchronous stillness of the piston and the cup holder in the slag discharging state.

[0016] Further, the driving mechanism further includes a driving gear, a transmission gear set and a transmission rack mounted on the rotating shaft. The transmission rack is arranged along the length direction on the inner circumferential surface of the cup cylinder, and one end of the transmission gear set is meshed with the driving gear and the other end is meshed with the transmission rack. In this way, when the cup holder abuts against the first limiting structure and stops (i.e., in the slag discharging state), the driving motor drives the rotating shaft to rotate and drives the driving gear, the driving gear drives the transmission gear set to rotate, and the transmission gear set drives the cup cylinder of the brewing cup through the transmission rack.

[0017] Further, second shaft seats are respectively formed at the ends of the extension blocks, corresponding to the gear shafts of the transmission gear set one by one, and the corresponding ends of the corresponding gear shafts are respectively rotatably mounted thereon. It can not only realize the stable installation of the transmission gear set, but also is beneficial to ensure the smooth rotation of the whole brewer in the initial state and the smooth movement of the cup cylinder relative to the cup holder in the slag discharging state.

[0018] Further, an elastic member is arranged along the length direction of the cup cylinder. In the slag discharging state, the elastic member deforms to make the brewing cup have a tendency to move downward and reset relative to the cup holder along the vertical direction. On the one hand, it can make the brewing cup better stabilized in the slag discharging state, and on the other hand, after the slag discharging is completed, the brewing cup can automatically reset under the elastic force of the elastic member.

[0019] Further, a sliding seat is convexly provided on the outer surface of the cup cylinder, and a sliding groove extending along the length direction of the cup cylinder is formed on the cup seat. The sliding seat is slidably installed in the sliding groove along the length direction of the sliding groove. The elastic member is a return spring. A first spring seat is arranged on the sliding seat, a second spring seat is arranged on the cup seat, and two ends of the return spring are respectively connected to the corresponding spring seats. This not only enables the stable installation of the elastic member, but also enables the brewing cup to move more smoothly relative to the cup seat in the slag discharging state, and can better trigger the deformation of the elastic member.

[0020] Further, a second limiting structure is further included. After the slag discharging is completed, the cup seat is separated from the first limiting structure, and the driving mechanism drives the brewer to reverse from the vertically inverted state to the vertically upright state where the cup seat abuts against the second limiting structure and stops, so as to present the above initial state. In this way, driving the brewer to reverse by the driving mechanism can make the brewer return to the initial state, and the brewer is positioned in the initial state by the second limiting structure, which is convenient for the next round of coffee making.

[0021] The technical solution adopted to further solve the above fourth technical problem is: a coffee machine, characterized in that it includes the coffee extraction and brewing assembly as described above.

[0022] Further, a frame, a grinding assembly and a brewing plug assembly are further included. Among them, the coffee extraction and brewing assembly, the grinding assembly, the brewing plug assembly and the first limiting structure are all arranged in the frame. Among them, the grinding assembly and the brewing plug assembly are arranged side by side. And in the powder receiving state, the grinding assembly is located directly above the brewer. In the powder pressing state, the brewer rotates to face the brewing plug assembly. In the slag discharging state, the first limiting structure is located on one side of the brewer along the forward rotation direction of the brewer. This facilitates the powder receiving and powder pressing operations during the coffee making process, and can better ensure the abutment between the cup seat and the first limiting structure in the slag discharging state.

[0023] Further, a position detection switch for detecting the position of the brewer and controlling the opening and closing of the brewing plug assembly is further arranged on the frame. When the brewer rotates forward to face the brewing plug assembly, the position detection switch activates the brewing plug assembly. On the one hand, it ensures that the brewer rotates in place in the powder pressing state, and on the other hand, it can realize the automatic opening and closing of the brewing plug assembly.

[0024] Compared with the prior art, the advantages of the present invention are as follows: By driving the brewer to rotate, in the slag discharging state, the brewer rotates to the vertically inverted state so that the cup mouth at the first end of the brewing cup faces downward. In this way, when discharging slag, the slag powder can fall downward along the trend, avoiding the residue of the slag powder at the cup mouth of the brewing cup, which is beneficial to ensuring the cleanliness of the coffee machine. At the same time, the driving mechanism drives the brewing cup to move upward vertically relative to the cup holder, so as to avoid the occupation of the space below the brewer by the part of the brewing cup exposed outside the cup holder during slag discharging. In this way, the present invention does not need to additionally increase the height of the space below the brewer due to the inverted slag discharging of the brewer, avoiding the increase of the body height and ensuring the user-friendliness of the coffee machine. Among them, the first limiting structure not only limits the brewer in the slag discharging state, but also can realize the switching of the state of the driving mechanism: driving the whole brewer to rotate or driving the brewing cup to move relative to the cup holder. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the coffee machine in the powder receiving state in an embodiment of the present invention;

[0026] Figure 2 is a schematic structural diagram of the coffee machine in the powder pressing state in an embodiment of the present invention;

[0027] Figure 3 is a schematic structural diagram of the coffee machine in the slag discharging state in an embodiment of the present invention;

[0028] Figure 4 is a schematic structural diagram of the coffee extraction and brewing assembly in an embodiment of the present invention;

[0029] Figure 5 is Figure 4 a schematic structural diagram in another direction;

[0030] Figure 6 is Figure 5 a cross-sectional view along the A-A direction;

[0031] Figure 7 is Figure 5 a cross-sectional view along the B-B direction;

[0032] Figure 8 is a structural exploded view of the coffee extraction and brewing assembly in an embodiment of the present invention;

[0033] Figure 9 is a partial structural exploded view of the coffee extraction and brewing assembly in an embodiment of the present invention;

[0034] Figure 10 is Figure 9 a schematic structural diagram in another direction. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The present invention will be further described in detail below with reference to the embodiments of the drawings.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed by the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0037] As Figures 1 to 10 shown, a coffee machine includes a frame 6, on which a coffee extraction and brewing assembly, a grinding assembly 7, a brewing plug assembly 8, and a first limiting structure 91 are respectively arranged. Among them, the grinding assembly 7 and the brewing plug assembly 8 are arranged side by side, as Figures 1 to 3 shown.

[0038] Furthermore, the coffee extraction and brewing assembly includes a brewer 1, and the brewer 1 includes a cup holder 11 and a brewing cup 12. Among them, the brewing cup 12 includes a cylindrical cup tube 121 and a piston 122 embedded in the first end of the cup tube 121 with a cup mouth 1210. A filter plate 13 is covered on the top surface of the piston 122. In the initial state, the above-mentioned brewer 1 is vertically placed upright, the above-mentioned brewing cup 12 is vertically accommodated in the cup holder 11, and the first end faces upward and is exposed outside the cup holder 11 to facilitate powder receiving operation.

[0039] Still further, the above-mentioned coffee extraction and brewing assembly further includes a rotating shaft 2 arranged along the diameter direction of the above-mentioned brewing cup 12 and a driving mechanism 3 for driving the above-mentioned brewer 1 to rotate around the rotating shaft 2. And in the slag discharging state, the above-mentioned brewer 1 rotates forward to the vertically inverted state so that the first end of the brewing cup 12 faces downward, and the above-mentioned cup holder 11 is limited and stopped by the first limiting structure 91, so that the driving mechanism 3 drives the brewing cup 12 to move upward relative to the cup holder 11 along the vertical direction until the cup mouth 1210 of the first end of the brewing cup 12 is adjacent to the above-mentioned cup holder 11.

[0040] As can be seen from the above, in the present invention, the brewing device 1 is driven to rotate by the driving mechanism 3. In the slag discharging state, the brewing device 1 rotates to the vertically inverted state, so that the cup mouth 1210 at the first end of the brewing cup 12 faces downward. In this way, when discharging slag, the slag powder can fall downward smoothly, avoiding the residue of the slag powder at the cup mouth 1210 of the brewing cup 12, which is beneficial to ensuring the cleanliness of the coffee machine and improving the user experience. At the same time, the driving mechanism 3 drives the brewing cup 12 to move upward along the vertical direction relative to the cup base 11, so as to avoid the occupation of the space below the brewing device 1 by the part of the brewing cup 12 exposed outside the cup base 11 during slag discharging. In this way, the present invention does not need to additionally increase the height of the space below the brewing device 1 due to the inverted slag discharging of the brewing device 1, avoiding the increase of the body height and ensuring the user-friendliness of the coffee machine. Among them, the first limiting structure 91 in the present invention not only limits the brewing device 1 in the slag discharging state, but also can realize the state switching of the driving mechanism 3: driving the whole brewing device 1 to rotate or driving the brewing cup 12 to move relative to the cup base 11.

[0041] Preferably, the brewing cup 12 is movably inserted in the cup base 11 along its own length direction, that is, the cup base 11 has a vertically penetrating channel 110 for the brewing cup 12 to be arranged, as Figure 8 shown. In the slag discharging state, as the brewing cup 12 moves upward, the second end of the brewing cup 12 can be exposed outside the cup base 11 and located in the upper space of the brewing device 1 (the position where the first end of the brewing cup 12 is located in the initial state). In this way, it is not necessary to design the height of the cup base 11 very high, and the cup base 11 with a lower height can also meet the installation of the brewing cup 12, thus better avoiding the increase of the body height.

[0042] Preferably, the frictional force between the piston 122 and the inner peripheral surface of the cup cylinder 121 of the brewing cup 12 is greater than the driving force for driving the brewing cup 12 to rotate by the driving mechanism 3 in the initial state, and less than the driving force for driving the brewing cup 12 to move upward along the vertical direction relative to the cup base 11 by the driving mechanism 3 in the slag discharging state. It can better ensure the synchronous rotation of the piston 122 with the cup cylinder 121 in the initial state, ensure the overall rotation of the brewing device 1 in the initial state, and when the brewing cup 12 moves upward along the vertical direction relative to the cup base 11 in the slag discharging state, the piston 122 can move downward synchronously relative to the cup cylinder 121 of the brewing cup 12, so as to push the slag powder out of the brewing cup 12 by using the piston 122, and cooperate with the gravity of the slag powder itself to further improve the slag discharging efficiency. In this embodiment, a sealing ring 10 is clamped between the piston 122 and the inner peripheral surface of the cup cylinder 121, which can not only improve the sealing performance between the piston 122 and the inner peripheral surface of the cup cylinder 121, but also increase the frictional force between the two.

[0043] Further, in the slag discharging state, the above-mentioned piston 122 is stationary relative to the cup holder 11. On the one hand, it is beneficial to amplify the relative movement amount between the piston 122 and the cup cylinder 121, so as to facilitate the piston 122 to push the slag powder out of the brewing cup 12 and better improve the slag discharging efficiency. On the other hand, it is beneficial to ensure the internal structural stability of the coffee extraction and brewing assembly in the slag discharging state. Preferably, in the working state, the above-mentioned piston 122 is always stationary relative to the cup holder 11.

[0044] Further, the above-mentioned brewing cup 12 is slidably mounted on the above-mentioned cup holder 11 along its own length direction. The above-mentioned driving mechanism 3 includes a fixedly arranged driving motor 31. One end of the above-mentioned rotating shaft 2 is fixed on the output shaft of the driving motor 31, and the other end is rotatably mounted on the first shaft seat 1221, and the first shaft seat 1221 is integrally provided on the above-mentioned piston 122. On the one hand, it can make the brewing cup 12 move smoothly upward relative to the cup holder 11 in the slag discharging state, and on the other hand, it is beneficial to realize the stationary state of the piston 122 relative to the cup holder 11 in the slag discharging state.

[0045] Further, as Figure 6 and Figure 7 shown, the above-mentioned rotating shaft 2 is arranged in the second end of the above-mentioned cup cylinder 121. As Figure 9 and Figure 10 shown, the above-mentioned piston 122 extends along the length direction of the cup cylinder 121 to form extension blocks 122a, and the first shaft seat 1221 and the motor seat 1223 for mounting the above-mentioned driving motor 31 are respectively formed at the ends of the respective extension blocks 122a. The motor seat 1223 is embedded in the sliding port 1211 penetrating through the second end of the above-mentioned cup cylinder 121, and the sliding port 1211 extends along the length direction of the cup cylinder 121. Moreover, when the cup cylinder 121 of the above-mentioned brewing cup 12 moves relative to the cup holder 11, the above-mentioned motor seat 1223 can move synchronously along the above-mentioned sliding port 1211, and a through hole 111 for rotatably embedding the above-mentioned driving motor 31 and its motor seat 1223 is provided on the above-mentioned cup holder 11. It realizes the integral setting of the first shaft seat 1221 on the piston 122, and at the same time can also realize the stable installation of the driving motor 31, and is beneficial to ensure the overall rotation of the brewer 1 in the initial state and the synchronous stationary state of the piston 122 and the cup holder 11 in the slag discharging state.

[0046] Further, the above-mentioned driving mechanism 3 further includes a driving gear 32 mounted on the above-mentioned rotating shaft 2, a transmission gear set, and a transmission rack 36. The transmission rack 36 is arranged on the inner circumferential surface of the above-mentioned cup cylinder 121 along the length direction, and one end of the above-mentioned transmission gear set is engaged with the above-mentioned driving gear 32 and the other end is engaged with the above-mentioned transmission rack 36. Thus, when the cup holder 11 abuts against the first limiting structure 91 and stops (i.e., in the slag discharging state), the driving motor 31 drives the rotating shaft 2 to rotate, driving the driving gear 32. The driving gear 32 drives the transmission gear set to rotate, and the transmission gear set drives the cup cylinder 121 of the brewing cup 12 through the transmission rack 36. In this embodiment, specifically, as Figure 9 and Figure 10 shown, there are two of the above-mentioned transmission racks 36. The transmission gear set includes a first transmission gear 33, a second transmission gear 34, and a third transmission gear 35. Among them, both the first transmission gear 33 and the second transmission gear 34 are double gears. The small gears of the first transmission gear 33 and the second transmission gear 34 are respectively engaged with the above-mentioned driving gear 32, and the large gear of the first transmission gear 33 is engaged with one of the transmission racks 36. The large gear of the second transmission gear 34 is engaged with the third transmission gear 35, and the third transmission gear 35 is engaged with the other transmission rack 36. Thus, in the slag discharging state, the driving mechanism 3 can stably drive the cup cylinder 121 of the brewing cup 12 to move relative to the cup holder 11.

[0047] Preferably, as Figure 9 and Figure 10 shown, the ends of each of the above-mentioned extension blocks 122a are respectively formed with second shaft seats 1222, which correspond to the gear shafts 37 of the transmission gears of the above-mentioned transmission gear set one by one, and respectively provide rotational mounting for the corresponding ends of the corresponding gear shafts 37. It can not only realize the stable installation of the transmission gear set, but also be beneficial to ensuring the stable rotation of the whole brewing device 1 in the initial state and the stable movement of the cup cylinder 121 relative to the cup holder 11 in the slag discharging state.

[0048] Further, it further includes an elastic member 4 arranged along the length direction of the above-mentioned cup cylinder 121. In the slag discharging state, the elastic member 4 deforms to make the above-mentioned brewing cup 12 tend to move downward vertically relative to the cup holder 11. On the one hand, it can make the brewing cup 12 better stabilized in the slag discharging state. On the other hand, after the slag discharging is completed, the brewing cup 12 can automatically reset under the elastic force of the elastic member 4. Specifically, as Figure 4 and Figure 7As shown, a sliding seat 5 is convexly provided on the outer surface of the above-mentioned cup cylinder 121, and a sliding groove 112 extending along the length direction of the cup cylinder 121 is provided on the above-mentioned cup base 11. The sliding seat 5 is slidably installed on the sliding groove 112 along the length direction of the sliding groove 112. The above-mentioned elastic member 4 is a return spring. A first spring seat 51 is provided on the sliding seat 5, and a second spring seat 113 is provided on the cup base 11. Both ends of the return spring are connected to the corresponding spring seats. It can not only realize the stable installation of the elastic member 4, but also enable the brewing cup 12 to move more smoothly relative to the cup base 11 in the slag discharging state, and can better trigger the deformation of the elastic member 4. In this embodiment, the above-mentioned sliding groove 112 and the above-mentioned sliding port 1211 are arranged opposite to each other inside and outside (as Figure 7 shown). When the sliding seat 5 moves along the sliding groove 112, the above-mentioned motor base 1223 moves synchronously along the sliding port 1211.

[0049] Furthermore, a second limiting structure (not shown) is also provided on the above-mentioned frame 6. After the slag discharging is completed, the above-mentioned cup base 11 disengages from the above-mentioned first limiting structure 91, and the driving mechanism 3 drives the above-mentioned brewer 1 to reverse from the vertically inverted state until the cup base 11 abuts against the above-mentioned second limiting structure and stops in the vertically upright state to present the above-mentioned initial state. In this way, driving the brewer 1 to reverse by the driving mechanism 3 can make the brewer 1 return to the initial state, and the brewer 1 is positioned in the initial state by the second limiting structure for the next round of coffee making.

[0050] The above-mentioned initial state is the powder receiving state of the coffee machine. In this embodiment, the above-mentioned grinding assembly 7 is vertically arranged. In the powder receiving state, the above-mentioned grinding assembly 7 is located directly above the above-mentioned brewer 1, so that coffee powder can easily fall from the grinding assembly 7 into the brewer 1. In the powder pressing state, the above-mentioned brewer 1 rotates to face the above-mentioned brewing plug assembly 8. In this embodiment, the brewing plug assembly 8 is inclined relative to the vertical direction. When pressing the powder, the brewer 1 rotates forward from the vertical state (i.e., the powder receiving state) to an inclined state relative to the vertical direction, so that the brewer 1 faces the brewing plug assembly 8 to complete the powder pressing.

[0051] In addition, in this embodiment, the above-mentioned first limiting structure 91 is located on one side of the above-mentioned brewer 1 along the forward rotation direction of the brewer 1, so as to facilitate the powder receiving and powder pressing operations during the coffee making process, and can better ensure the abutment of the cup base 11 and the first limiting structure 91 in the slag discharging state. A position detection switch 92 for controlling the opening and closing of the above-mentioned brewing plug assembly 8 is also provided on the above-mentioned frame 6. When the above-mentioned brewer 1 rotates forward to face the above-mentioned brewing plug assembly 8, the above-mentioned position detection switch 92 activates the above-mentioned brewing plug assembly 8. On the one hand, it ensures that the brewer 1 rotates in place in the powder pressing state, and on the other hand, it can realize the automatic opening and closing of the brewing plug assembly 8.

[0052] The working process of the present invention is as follows:

[0053] As Figure 1 shown, in the initial state, the brewer 1 is stationary in the vertically upright state. The cup holder 11 of the brewer 1 abuts against the second limiting structure. The grinding assembly 7 is located directly above the brewer 1. The ground coffee powder falls into the brewer 1 to complete the powder receiving. The drive motor 31 operates to drive the entire brewer 1 to rotate clockwise (clockwise in this embodiment) around the rotating shaft 2. When it rotates to face the brewing plug assembly 8, the position detection switch 92 activates the brewing plug assembly 8 to perform the powder pressing operation (at this time, the brewer 1 pauses rotation. Preferably, a third limiting structure can be set to limit the brewer 1 at this position), as Figure 2 shown. After the powder pressing is completed, the brewer 1 continues to rotate clockwise until it abuts against the first limiting structure 91, and the brewer 1 is in the vertically inverted state, as Figure 3 shown. At this time, the cup holder 11 stops moving. The driving force output by the drive motor 31 drives the barrel 121 of the brewing cup 12 to move upward relative to the cup holder 11 through the transmission of the driving gear 32, the transmission gear set, and each transmission rack 36. The residue powder in the brewer 1 falls into the residue receiving box 93 below the brewer 1 to complete the residue discharging. At the same time, the elastic member 4 is compressed, causing the barrel 121 to have a tendency to move downward and reset relative to the cup holder 11. After the residue discharging is completed, the above drive motor 31 rotates in the reverse direction. The cup holder 11 of the brewer 1 disengages from the first limiting structure 91 and rotates in the reverse direction until it abuts against the second limiting structure, and the brewer 1 is in the vertically upright state for the next round of coffee making. In this embodiment, each limiting structure can adopt various existing available structures. For example, it can adopt the form of a limiting block.

Claims

1. A coffee extraction and brewing component, comprising a brewer (1), the brewer (1) including a cup holder (11) and a brewing cup (12), wherein, The brewing cup (12) includes a cylindrical cup barrel (121) and a piston (122) fitted in the first end of the cup barrel (121) with a cup mouth (1210). In the initial state, the above-mentioned brewer (1) is vertically placed upright, the above-mentioned brewing cup (12) is vertically accommodated in the cup holder (11), and the first end faces upward and is exposed outside the cup holder (11). It is characterized in that it further includes a rotating shaft (2) arranged along the diameter direction of the above-mentioned brewing cup (12) and a driving mechanism (3) for driving the above-mentioned brewer (1) to rotate around the rotating shaft (2). Moreover, in the slag discharging state, the above-mentioned brewer (1) rotates forward to the vertically inverted state, so that the first end of the brewing cup (12) faces downward, and the above-mentioned cup holder (11) is limited and stopped by the first limiting structure (91), so that the above-mentioned driving mechanism (3) drives the brewing cup (12) to move upward along the vertical direction relative to the cup holder (11) until the cup mouth (1210) of the first end of the brewing cup (12) is adjacent to the above-mentioned cup holder (11).

2. The coffee extraction and brewing assembly according to claim 1, wherein The above-mentioned brewing cup (12) is slidably installed in the above-mentioned cup holder (11) along its own length direction.

3. The coffee extraction and brewing component according to claim 1, wherein The frictional force between the above-mentioned piston (122) and the inner peripheral surface of the cup barrel (121) of the brewing cup (12) is greater than the driving force for driving the above-mentioned brewing cup (12) to rotate by the above-mentioned driving mechanism (3) in the initial state, and less than the driving force for driving the brewing cup (12) to move upward along the vertical direction relative to the cup holder (11) by the above-mentioned driving mechanism (3) in the slag discharging state.

4. The coffee extraction and brewing assembly according to claim 3, wherein In the slag discharging state, the above-mentioned piston (122) is stationary relative to the cup holder (11).

5. The coffee extraction and brewing assembly according to claim 4, characterized in that, The above-mentioned brewing cup (12) is slidably installed on the above-mentioned cup holder (11) along its own length direction. The above-mentioned driving mechanism (3) includes a fixedly arranged driving motor (31). One end of the above-mentioned rotating shaft (2) is fixed on the output shaft of the driving motor (31), and the other end is rotatably installed on the first shaft seat (1221), and the first shaft seat (1221) is integrally provided on the above-mentioned piston (122).

6. The coffee extraction and brewing component according to claim 5, characterized in that The above-mentioned rotating shaft (2) is arranged in the second end of the above-mentioned cup barrel (121). The above-mentioned piston (122) extends along the length direction of the cup barrel (121) to form extension blocks (122a), and the first shaft seat (1221) and a motor seat (1223) for installing the above-mentioned driving motor (31) are respectively formed at the ends of the extension blocks (122a). A sliding port (1211) penetrates through the second end of the above-mentioned cup barrel (121) along its own length direction inside and outside. The above-mentioned motor seat (1223) is fitted in the sliding port (1211). Moreover, when the above-mentioned cup barrel (121) moves relative to the cup holder (11), the above-mentioned motor seat (1223) can move synchronously along the sliding port (1211), and a through hole (111) for rotatably fitting the above-mentioned driving motor (31) and its motor seat (1223) is provided on the above-mentioned cup holder (11).

7. The coffee extraction and brewing assembly according to claim 6, wherein, The driving mechanism (3) further includes a driving gear (32) mounted on the rotating shaft (2), a transmission gear set, and a transmission rack (36). The transmission rack (36) is arranged on the inner circumferential surface of the cup cylinder (121) along the length direction, and one end of the transmission gear set meshes with the driving gear (32) and the other end meshes with the transmission rack (36).

8. The coffee extraction and brewing assembly according to claim 7, characterized in that, Ends of the extension blocks (122a) are respectively formed with second shaft seats (1222), which correspond one by one to the gear shafts (37) of the transmission gears of the transmission gear set, and respectively rotatably mount the corresponding ends of the corresponding gear shafts (37).

9. The coffee extraction and brewing assembly according to any one of claims 1 to 8, characterized in that, It further includes an elastic member (4) arranged along the length direction of the cup cylinder (121). In the slag discharging state, the elastic member (4) deforms to make the brewing cup (12) have a tendency to move downward and reset relative to the cup base (11) in the vertical direction.

10. The coffee extraction and brewing component according to claim 9, characterized in that, A sliding seat (5) protrudes from the outer surface of the cup cylinder (121), and a sliding groove (112) extending along the length direction of the cup cylinder (121) is formed on the cup base (11). The sliding seat (5) is slidably mounted in the sliding groove (112) along the length direction of the sliding groove (112). The elastic member (4) is a return spring. A first spring seat (51) is arranged on the sliding seat (5), and a second spring seat (113) is arranged on the cup base (11). Two ends of the return spring are respectively connected to the corresponding spring seats.

11. The coffee extraction and brewing assembly according to claim 9, characterized in that, It further includes a second limiting structure. After the slag discharging is completed, the cup base (11) disengages from the first limiting structure (91), and the driving mechanism (3) drives the brewer (1) to reverse from the vertically inverted state to the vertically upright state where the cup base (11) abuts against the second limiting structure and stops, so as to present the initial state.

12. A coffee machine, characterized in that, It includes the coffee extraction and brewing assembly according to any one of claims 1 to 11.

13. The coffee machine according to claim 12, characterized in that, It further includes a frame (6), a grinding assembly (7), and a brewing plug assembly (8). Among them, the coffee extraction and brewing assembly, the grinding assembly (7), the brewing plug assembly (8), and the first limiting structure (91) are all arranged in the frame (6). Among them, the grinding assembly (7) and the brewing plug assembly (8) are arranged side by side. And in the powder receiving state, the grinding assembly (7) is located directly above the brewer (1). In the powder pressing state, the brewer (1) rotates to face the brewing plug assembly (8). In the slag discharging state, the first limiting structure (91) is located on one side of the brewer (1) along the forward rotation direction of the brewer (1).

14. The coffee machine according to claim 13, wherein A position detection switch (92) for detecting the position of the brewer (1) and controlling the opening and closing of the brewing plug assembly (8) is further arranged on the frame (6). When the brewer (1) rotates forward to face the brewing plug assembly (8), the position detection switch (92) activates the brewing plug assembly (8).

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