Coffee preparation system and coffee machine

Abstract

The invention relates to a coffee preparation system and a coffee maker, and belongs to the field of coffee makers, the coffee preparation system comprises: a shell assembly, the shell assembly is provided with a first limiting space and a second limiting space, and the second limiting space is communicated with the first limiting space; the extraction assembly is movably arranged on the shell assembly, and the extraction assembly can move relative to the shell assembly; the milk box assembly is arranged on the shell assembly, and the milk box assembly and the extraction assembly are located on the two adjacent sides of the shell assembly; the steam pipe assembly is movably arranged on the shell assembly, the steam pipe assembly and the extraction assembly are located on the same side of the shell assembly, the steam pipe assembly is adjacent to the first limiting space, and the steam pipe assembly can rotate relative to the shell assembly. According to the coffee preparation system disclosed by the invention, the steam pipe assembly is adjacent to the first limiting space, so that the interference phenomenon between the rotation of the steam pipe assembly and the extraction assembly can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of coffee machines, in particular to a coffee preparation system and a coffee machine. BACKGROUND

[0002] The coffee preparation system of the coffee machine generally has the functions of coffee extraction and milk frothing. However, the layout design of the coffee preparation system of the traditional coffee machine is unreasonable due to the various functional components such as the extraction assembly and the steam pipe assembly, which leads to the phenomenon that the various functional components are prone to spatial interference, limits the activity range of the various functional components, and restricts the function of each component. SUMMARY

[0003] Therefore, it is necessary to provide a coffee preparation system and a coffee machine in view of the problem that the various functional components of the traditional coffee machine are prone to spatial interference, which limits the activity range of the various functional components.

[0004] A coffee preparation system comprises: a housing assembly provided with a first limiting space and a second limiting space, the second limiting space being in communication with the first limiting space; an extraction assembly movably arranged on the housing assembly, the extraction assembly being movable relative to the housing assembly, the extraction assembly having at least a first position and a second position when moving relative to the housing assembly, the extraction assembly being located at the first position to receive coffee powder at the first limiting space, the extraction assembly being located at the second position to provide a powder pressing assembly for pressing powder at the second limiting space; a milk tank assembly arranged on the housing assembly, the milk tank assembly being located on two sides of the housing assembly adjacent to the extraction assembly; and a steam pipe assembly movably arranged on the housing assembly, the steam pipe assembly being located on the same side of the housing assembly as the extraction assembly, the steam pipe assembly being arranged adjacent to the first limiting space, the steam pipe assembly being rotatable relative to the housing assembly.

[0005] The first aspect of the present application discloses a coffee preparation system. First of all, it is necessary to compact loose coffee powder for extraction. By moving the extraction assembly relative to the shell assembly, compared with traditional technology, the design can move to the first position and the second position respectively to realize the functions of automatic coffee powder extraction and powder compaction, thereby automatically extracting coffee. Since the components for grinding and powdering are required, the process needs to provide a suitable length of movement path for the extraction assembly. By setting the steam pipe assembly adjacent to the first limiting space, it can be ensured that the rotation of the steam pipe assembly does not interfere with the extraction assembly when the extraction assembly is in the second limiting space. Even if the extraction assembly is located in the first limiting space, the steam pipe assembly can output steam without interfering with the extraction assembly to perform the operation of frothing milk. This design can improve the compactness of the coffee machine as a whole while ensuring that the various functional components do not interfere with each other, so that the size of the shell assembly does not need to be designed too large, and the extraction assembly has a suitable length of movement path while ensuring that the activity space of the steam pipe assembly and the extraction assembly does not interfere with each other, which can reduce the material of the shell assembly and help reduce production costs. By setting the milk tank assembly adjacent to the other side of the extraction assembly, it is completely avoided from the activity area of the extraction assembly and the steam pipe assembly. This layout fundamentally eliminates the obstruction of the fixed milk tank assembly with a large volume to the movement path of the extraction assembly and the rotation space of the steam pipe assembly, ensuring that each component moves freely within its designed range without interfering with each other. Among them, the steam pipe assembly is used for manual milk frothing, and the milk tank assembly is used for automatic milk frothing. The present application realizes multifunctional integration in limited space.

[0006] In one embodiment, the steam pipe assembly is adjacent to one end of the first limiting space away from the second limiting space. By setting the steam pipe assembly adjacent to one end of the first limiting space away from the second limiting space, when the extraction assembly moves to the second limiting space for powdering, they are farthest apart, thereby providing the steam pipe assembly with the maximum safe activity area for rotation, reducing spatial interference. This design allows the steam pipe assembly to rotate more than one hundred and eighty degrees, allowing for arbitrary adjustment of the milk frothing angle, making the operation more flexible. Moreover, it can ensure that the movement of the extraction assembly does not interfere with the steam pipe assembly while ensuring overall compactness. It should be noted that this layout is more reasonable. For example, if the steam pipe assembly is adjacent to the second limiting space, the steam pipe assembly is likely to interfere with the milk tank assembly located on the adjacent side during rotation, reducing the activity range.

[0007] In one embodiment, the housing assembly has a first side, a second side, and a third side, which are arranged sequentially adjacent to each other. The first side and the third side are arranged opposite each other. The milk tank assembly is located on the first side, and the extraction assembly and the steam pipe assembly are located on the second side. When the extraction assembly is in the second position, it is located at the end of the second side closer to the first side, and the steam pipe assembly is located at the end of the second side closer to the third side. Because the milk tank assembly is relatively large, placing it on the first side and concentrating the extraction assembly and steam pipe assembly on the adjacent second side avoids any obstruction to the movement of the extraction assembly and steam pipe assembly, achieving a compact overall design. Since the handle of the extraction assembly is relatively long and exposed, placing the steam pipe assembly at the end of the second side closer to the third side avoids spatial interference between the handle and the steam pipe assembly during movement.

[0008] In one embodiment, the distance between the connection point of the steam pipe assembly to the second side and the third side is less than the shortest distance between the first limiting space and the third side. Because the distance between the connection point of the steam pipe assembly to the second side and the third side is less than the shortest distance between the first limiting space and the third side, the extraction assembly will not spatially interfere with the steam pipe assembly as it moves toward the first and third sides.

[0009] In one embodiment, the housing assembly includes a first housing and a second housing. The first housing has a first side and a third side. The milk box assembly is disposed on the first housing, and the second housing is disposed on the first housing. The second housing has a second side and a first limiting space and a second limiting space, which are sequentially arranged along the length of the second housing. This sequential arrangement of the first and second limiting spaces along the length of the second housing restricts the movement of the extraction assembly from powder collection to powder pressing, creating a smooth, continuous, and compact linear movement trajectory. The steam pipe assembly is located at the end of the second housing along the length, providing maximum uninterrupted movement space for the rotation of the steam pipe assembly within a limited space.

[0010] In one embodiment, the first housing has a fourth side surface, which is adjacent to the first side surface, the second side surface, and the third side surface. A portion of the milk box assembly protrudes from the fourth side surface along the width direction of the second housing. By having a portion of the milk box assembly protrude from the fourth side surface along the width direction of the second housing, it is easier to grasp the milk box assembly, making the actions of picking up and putting back the milk box assembly more convenient and effortless. Under this design, the milk box assembly can only be located on the first side surface. If the same design were used and the milk box assembly were located on the third side surface, spatial interference would occur between the steam pipe assembly and the milk box assembly during rotation. Therefore, the layout of this design is more reasonable.

[0011] In one embodiment, the milk box assembly includes a milk box body and a milk box handle. The milk box body is disposed on the housing assembly and located on the first side. A portion of the milk box body protrudes from the fourth side along the width direction of the second housing. The milk box handle is disposed on the milk box body and located on the side of the milk box body protruding from the fourth side. By positioning the milk box body on the first side and placing the milk box handle on the side of the milk box body protruding from the fourth side, this design places the handle in a position most convenient for the user to grip. This design ensures that the rotation of the steam wand assembly will not spatially interfere with the steam wand assembly, guaranteeing the rotation range of the steam wand assembly and improving operational flexibility.

[0012] In one embodiment, the system further includes a grinding assembly and a tamping assembly, both of which are mounted on the housing assembly. The grinding assembly and the tamping assembly are arranged adjacent to each other. The grinding assembly has a powder dispensing channel, and the extraction assembly has an extraction chamber. When the extraction assembly is in the first position, the extraction chamber communicates with the powder dispensing channel. When the extraction assembly is in the second position, the extraction chamber is positioned opposite to the tamping assembly. By configuring the grinding assembly and the tamping assembly, and by moving the extraction assembly, the system achieves automatic coffee bean grinding, powder collection, and tamping. Furthermore, the functional layout of this application ensures the stable implementation of this function.

[0013] In one embodiment, the extraction assembly includes a movable rack and an extraction powder hopper. The movable rack is movably mounted on the housing assembly and is capable of moving relative to the housing assembly toward either the first or second position. The extraction powder hopper is mounted on the movable rack. The assembly also includes a drive motor and a drive gear. The drive motor is mounted on the housing assembly, and the drive gear is drive-connected to the drive motor and engages with the movable rack, enabling the drive gear to drive the rack to move relative to the housing assembly. Because the extraction powder hopper is mounted on the movable rack, it moves along with the rack. By employing a transmission system consisting of a drive motor, drive gear, and movable rack, a stable and controllable power source is provided for the movement of the extraction assembly between the first and second positions.

[0014] In one embodiment, the steam pipe assembly includes a first pipe segment, a second pipe segment, and a third pipe segment. The first pipe segment is movably disposed on the housing assembly, and the first, second, and third pipe segments are connected sequentially. The length of the first pipe segment is greater than the height of the extraction powder hopper. By ensuring that the length of the first pipe segment is greater than the height of the extraction powder hopper, the steam pipe assembly can rotate without interfering with the extraction assembly even when the extraction assembly is in the first limiting space. Specifically, when the steam pipe assembly rotates, the second pipe segment can pass under the extraction assembly, achieving a larger range of motion for the steam pipe assembly and making operation more flexible.

[0015] A coffee machine includes: the coffee preparation system described above.

[0016] The second aspect of this application discloses a coffee machine in which the extraction component and the steam pipe component operate independently of each other, and the larger milk tank component is located on the adjacent side, avoiding spatial interference between the various functional components. Furthermore, it integrates automatic powder dispensing and tamping functions. This application enables the integration of multiple functions within a limited space, making the overall layout of the coffee machine more rational and compact. Attached Figure Description

[0017] Figure 1 A first perspective view of a coffee preparation system; Figure 2 A second perspective view of a coffee preparation system; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 A third perspective view of a coffee preparation system; Figure 5 A fourth perspective view of a coffee preparation system; Figure 6 A first exploded view of a coffee preparation system; Figure 7 A second exploded view of the coffee preparation system; Figure 8 The third exploded view of the coffee preparation system; Figure 9 for Figure 8 Enlarged view at point B in the middle; Figure 10 The fourth exploded view of the coffee preparation system; Figure 11 A 3D view of the extraction assembly, grinding assembly, tamping assembly, drive motor, and drive gear; Figure 12 Exploded view of the extraction assembly, grinding assembly, tamping assembly, drive motor, and drive gear; Figure 13 A 3D view of the coffee grinding assembly and the tamping assembly; Figure 14 A 3D view of the milk box components; Figure 15 This is a 3D view of the steam pipe assembly.

[0018] The correspondence between the reference numerals and the component names is as follows: 1. Housing assembly, 11. First housing, 12. Second housing, 101. First limiting space, 102. Second limiting space, 103. First side, 104. Second side, 105. Third side, 106. Fourth side; 2 extraction components, 21 moving rack, 22 extraction powder hopper, 201 extraction chamber; 3. Milk box components; 31. Milk box body; 32. Milk box handle; 4. Steam pipe assembly, 41. First pipe section, 42. Second pipe section, 43. Third pipe section; 5 grinding components, 501 powder dispensing channel; 6. Powder pressing components; 7 drive motors; 8. Drive gears. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0021] Example 1, asFigures 1-15 As shown, this embodiment discloses a coffee preparation system, including: a housing assembly 1, the housing assembly 1 having a first limiting space 101 and a second limiting space 102, the second limiting space 102 communicating with the first limiting space 101; and an extraction assembly 2, the extraction assembly 2 being movably disposed on the housing assembly 1, the extraction assembly 2 being movable relative to the housing assembly 1, and the extraction assembly 2 having at least a first position and a second position when moving relative to the housing assembly 1. When the extraction assembly 2 is located in the first position, the extraction assembly 2 is located in the first limiting space 101 for receiving coffee powder. When the extraction component 2 is in the second position, it is located in the second limiting space 102 for the powder pressing component 6 to press the powder; the milk box component 3 is disposed on the shell component 1, and the milk box component 3 and the extraction component 2 are located on adjacent sides of the shell component 1; the steam pipe component 4 is movably disposed on the shell component 1, and the steam pipe component 4 and the extraction component 2 are located on the same side of the shell component 1, the steam pipe component 4 is disposed adjacent to the first limiting space 101, and the steam pipe component 4 can rotate relative to the shell component 1.

[0022] The first aspect of this application discloses a coffee preparation system. It is noted that compacting loose coffee powder is a necessary condition for coffee extraction. By moving the extraction component 2 relative to the housing component 1, compared to conventional technologies, this design can move to a first position and a second position respectively to automatically pick up and tamp the coffee powder, thereby automatically extracting the coffee. Since it requires the installation of grinding and tamp components, this process necessitates providing the extraction component 2 with a suitable length of movement path. By arranging the steam pipe component 4 adjacent to the first limiting space 101, it is ensured that the rotation of the steam pipe component 4 will not interfere with the extraction component 2 when it is in the second limiting space 102. Even when the extraction component 2 is in the first limiting space 101, the steam pipe component 4 can still output steam for milk frothing without interfering with the extraction component 2. This design enhances the overall compactness of the coffee machine while ensuring that the various functional components do not interfere with each other. It allows the housing assembly 1 to be smaller while still providing a suitable movement path for the extraction assembly 2, and also ensures that the steam pipe assembly 4 and the extraction assembly 2 have sufficient space to operate without interference. This reduces the material requirements of the housing assembly 1, contributing to lower production costs. By placing the milk tank assembly 3 on the opposite side adjacent to the extraction assembly 2, it completely avoids the movement areas of the extraction assembly 2 and the steam pipe assembly 4. This layout fundamentally eliminates the obstruction of the large, fixed milk tank assembly 3 to the movement path of the extraction assembly 2 and the rotation space of the steam pipe assembly 4, ensuring that each component moves freely within its design range without interfering with each other. The steam pipe assembly 4 is used for manual milk frothing, and the milk tank assembly 3 is used for automatic milk frothing; this application achieves multifunctional integration within a limited space.

[0023] like Figures 2-5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the steam pipe assembly 4 is arranged adjacent to the end of the first limiting space 101 away from the second limiting space 102. By arranging the steam pipe assembly 4 adjacent to the end of the first limiting space 101 away from the second limiting space 102, the extraction component 2 moves to the second limiting space 102 for powder pressing, ensuring the two are at their furthest distance, thus providing a safe and minimally interfering area for the rotation of the steam pipe assembly 4. This design allows the steam pipe assembly 4 to rotate more than 180 degrees, allowing for arbitrary adjustment of the milk frothing angle and more flexible operation. Furthermore, it ensures that the movement of the extraction component 2 does not interfere with the steam pipe assembly 4 while maintaining overall compactness. It should be noted that this layout is more reasonable. For example, if the steam pipe assembly 4 is arranged adjacent to the second limiting space 102, the steam pipe assembly 4 is prone to spatial interference with the milk box assembly 3 located on the adjacent side during rotation, reducing the range of motion.

[0024] likeFigure 4 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the housing assembly 1 has a first side 103, a second side 104, and a third side 105, which are arranged sequentially adjacent to each other, with the first side 103 and the third side 105 facing each other. The milk tank assembly 3 is located at the first side 103, and the extraction assembly 2 and the steam pipe assembly 4 are located at the second side 104. When the extraction assembly 2 is in the second position, it is located at the end of the second side 104 closer to the first side 103, and the steam pipe assembly 4 is located at the end of the second side 104 closer to the third side 105. Because the milk tank assembly 3 is relatively large, placing it on the first side 103 and concentrating the extraction assembly 2 and the steam pipe assembly 4 on the adjacent second side 104 avoids any obstruction to the movement of the extraction assembly 2 and the steam pipe assembly 4, achieving a compact overall design. Since the handle of the extraction component 2 is relatively long and exposed, placing the steam pipe component 4 at the end of the second side 104 near the third side 105 can prevent spatial interference between the handle of the extraction component 2 and the steam pipe component 4 during the movement of the component.

[0025] like Figure 4 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the distance between the connection point of the steam pipe assembly 4 and the second side 104 and the third side 105 is less than the shortest distance between the first limiting space 101 and the third side 105. Because the distance between the connection point of the steam pipe assembly 4 and the second side 104 and the third side 105 is less than the shortest distance between the first limiting space 101 and the third side 105, the extraction assembly 2 will not spatially interfere with the steam pipe assembly 4 during its movement toward the first side 103 and the third side 105.

[0026] like Figures 4-5 and Figure 7As shown, in addition to the features of the above embodiments, this embodiment further defines: the housing assembly 1 includes a first housing 11 and a second housing 12. The first housing 11 has a first side 103 and a third side 105. The milk box assembly 3 is disposed on the first housing 11. The second housing 12 is disposed on the first housing 11. The second housing 12 has a second side 104. The second housing 12 has a first limiting space 101 and a second limiting space 102. The first limiting space 101 and the second limiting space 102 are arranged sequentially along the length direction of the second housing 12. Arranging the first limiting space 101 and the second limiting space 102 sequentially along the length direction of the second housing 12 restricts the movement of the extraction assembly 2 from powder receiving to powder pressing, forming a smooth, continuous, and compact linear movement trajectory. The steam pipe assembly 4 is located at the end of the second housing 12 along the length direction, providing maximum uninterrupted movement space for the rotation of the steam pipe assembly 4 within a limited space.

[0027] like Figure 5 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first housing 11 is provided with a fourth side surface 106, which is adjacent to the first side surface 103, the second side surface 104, and the third side surface 105 respectively, and a portion of the milk box assembly 3 protrudes from the fourth side surface 106 along the width direction of the second housing 12. By having a portion of the milk box assembly 3 protrude from the fourth side surface 106 along the width direction of the second housing 12, it is easier to grasp the milk box assembly 3, making the actions of picking up and putting back the milk box assembly 3 more convenient and effortless. Under this design premise, the milk box assembly 3 can only be set on the first side surface 103. If the same design were used and the milk box assembly 3 were set on the third side surface 105, then during the rotation of the steam pipe assembly 4, spatial interference would occur between it and the milk box assembly 3. Therefore, the layout of this design is more reasonable.

[0028] like Figures 5-6 and Figure 14As shown, in addition to the features of the above embodiments, this embodiment further defines the following: the milk box assembly 3 includes a milk box body 31 and a milk box handle 32. The milk box body 31 is disposed on the shell assembly 1 and located at the first side 103. A portion of the milk box body 31 protrudes from the fourth side 106 along the width direction of the second shell 12. The milk box handle 32 is disposed on the milk box body 31 and located on the side of the milk box body 31 that protrudes from the fourth side 106. By positioning the milk box body 31 at the first side 103 and placing the milk box handle 32 on the side of the milk box body 31 that protrudes from the fourth side 106, this design allows the handle to be directly positioned in the most convenient gripping position for the user. This design ensures that the rotation of the steam pipe assembly 4 will not spatially interfere with the steam pipe assembly 4, guaranteeing the rotation range of the steam pipe assembly 4 and improving operational flexibility.

[0029] like Figures 9-13 As shown, in addition to the features of the above embodiments, this embodiment further includes a grinding assembly 5 and a tamping assembly 6. Both the grinding assembly 5 and the tamping assembly 6 are disposed on the housing assembly 1, adjacent to each other. The grinding assembly 5 has a powder outlet channel 501, and the extraction assembly 2 has an extraction chamber 201. When the extraction assembly 2 is in the first position, the extraction chamber 201 communicates with the powder outlet channel 501. When the extraction assembly 2 is in the second position, the extraction chamber 201 is opposite to the tamping assembly 6. By configuring the grinding assembly 5 and the tamping assembly 6, and by moving the extraction assembly 2, the automatic grinding, powder collection, and tamping of coffee beans are achieved. Furthermore, the functional layout of this application ensures the stable implementation of this function.

[0030] like Figure 12 As shown, in addition to the features of the above embodiments, this embodiment further defines: the extraction component 2 includes a movable rack 21 and an extraction powder hopper 22. The movable rack 21 is movably disposed on the housing component 1 and can move relative to the housing component 1 toward the first position or the second position. The extraction powder hopper 22 is disposed on the movable rack 21. It also includes a drive motor 7 and a drive gear 8. The drive motor 7 is disposed on the housing component 1, and the drive gear 8 is drive-connected to the drive motor 7. The drive gear 8 is drive-meshed with the movable rack 21, and can drive the drive rack to move relative to the housing component 1. Because the extraction powder hopper 22 is disposed on the movable rack 21, the extraction powder hopper 22 moves with the movement of the movable rack 21. By employing a transmission system composed of the drive motor 7, the drive gear 8, and the movable rack 21, a stable and controllable power source is provided for the movement of the extraction component 2 between the first position and the second position.

[0031] like Figure 15 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the steam pipe assembly 4 includes a first pipe segment 41, a second pipe segment 42, and a third pipe segment 43. The first pipe segment 41 is movably disposed on the housing assembly 1. The first pipe segment 41, the second pipe segment 42, and the third pipe segment 43 are connected sequentially. The length of the first pipe segment 41 is greater than the height of the extraction powder hopper 22. By ensuring that the length of the first pipe segment 41 is greater than the height of the extraction powder hopper 22, the steam pipe assembly 4 can rotate without interfering with the extraction assembly 2 when the extraction assembly 2 is located in the first limiting space 101. Specifically, when the steam pipe assembly 4 rotates, the second pipe segment 42 can pass under the extraction assembly 2, achieving a larger range of motion for the steam pipe assembly 4 and making the operation more flexible.

[0032] Example 2: This example discloses a coffee machine, including the coffee preparation system described above.

[0033] The second aspect of this application discloses a coffee machine in which the extraction component 2 and the steam pipe component 4 are movable without interference, and the larger milk tank component 3 is located on the adjacent side, avoiding spatial interference between the various functional components. Furthermore, it integrates automatic powder dispensing and tamping functions. This application enables the integration of multiple functions within a limited space, making the overall layout of the coffee machine more rational and compact.

[0034] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A coffee preparation system, characterized in that, include: The housing assembly (1) is provided with a first limiting space (101) and a second limiting space (102), and the second limiting space (102) is connected to the first limiting space (101); An extraction component (2) is movably disposed on the housing component (1). The extraction component (2) is movable relative to the housing component (1). When the extraction component (2) moves relative to the housing component (1), it has at least a first position and a second position. When the extraction component (2) is in the first position, it is located in the first limiting space (101) for receiving coffee powder. When the extraction component (2) is in the second position, it is located in the second limiting space (102) for the tamping component (6) to tamp the coffee powder. Milk box assembly (3), the milk box assembly (3) is disposed on the shell assembly (1), the milk box assembly (3) and the extraction assembly (2) are located on the two adjacent sides of the shell assembly (1); A steam pipe assembly (4) is movably disposed on the housing assembly (1). The steam pipe assembly (4) and the extraction assembly (2) are located on the same side of the housing assembly (1). The steam pipe assembly (4) is disposed adjacent to the first limiting space (101). The steam pipe assembly (4) is rotatable relative to the housing assembly (1).

2. The coffee preparation system according to claim 1, characterized in that, The steam pipe assembly (4) is disposed adjacent to the end of the first limiting space (101) that is away from the second limiting space (102).

3. The coffee preparation system according to claim 1, characterized in that, The housing assembly (1) has a first side (103), a second side (104) and a third side (105). The first side (103), the second side (104) and the third side (105) are arranged adjacent to each other in sequence. The first side (103) and the third side (105) are arranged opposite to each other. The milk box assembly (3) is located at the first side (103). The extraction assembly (2) and the steam pipe assembly (4) are located at the second side (104). When the extraction assembly (2) is located in the second position, the extraction assembly (2) is located at the end of the second side (104) close to the first side (103). The steam pipe assembly (4) is located at the end of the second side (104) close to the third side (105).

4. The coffee preparation system according to claim 3, characterized in that, The distance between the connection point of the steam pipe assembly (4) and the second side (104) and the third side (105) is less than the shortest distance between the first limiting space (101) and the third side (105).

5. The coffee preparation system according to claim 3, characterized in that, The housing assembly (1) includes a first housing (11) and a second housing (12). The first housing (11) has a first side (103) and a third side (105). The milk box assembly (3) is disposed on the first housing (11). The second housing (12) is disposed on the first housing (11). The second housing (12) has a second side (104). The second housing (12) has a first limiting space (101) and a second limiting space (102). The first limiting space (101) and the second limiting space (102) are arranged sequentially along the length direction of the second housing (12).

6. The coffee preparation system according to claim 5, characterized in that, The first housing (11) has a fourth side (106), which is adjacent to the first side (103), the second side (104) and the third side (105) respectively. A portion of the milk box assembly (3) protrudes from the fourth side (106) along the width direction of the second housing (12).

7. The coffee preparation system according to claim 6, characterized in that, The milk box assembly (3) includes a milk box body (31) and a milk box handle (32). The milk box body (31) is disposed on the housing assembly (1) and located on the first side (103). A portion of the milk box body (31) protrudes from the fourth side (106) along the width direction of the second housing (12). The milk box handle (32) is disposed on the milk box body (31) and the milk box handle (32) is located on the side of the milk box body (31) that protrudes from the fourth side (106).

8. The coffee preparation system according to claim 1, characterized in that, It also includes a grinding assembly (5) and a tamping assembly (6), both of which are mounted on the housing assembly (1). The grinding assembly (5) and the tamping assembly (6) are arranged adjacent to each other. The grinding assembly (5) is provided with a powder outlet channel (501), and the extraction assembly (2) is provided with an extraction chamber (201). When the extraction assembly (2) is in the first position, the extraction chamber (201) is connected to the powder outlet channel (501). When the extraction assembly (2) is in the second position, the extraction chamber (201) is arranged opposite to the tamping assembly (6).

9. The coffee preparation system according to claim 1, characterized in that, The extraction assembly (2) includes a movable rack (21) and an extraction powder hopper (22). The movable rack (21) is movably disposed on the housing assembly (1). The movable rack (21) can move relative to the housing assembly (1) toward the first position or the second position. The extraction powder hopper (22) is disposed on the movable rack (21). The assembly also includes a drive motor (7) and a drive gear (8). The drive motor (7) is disposed on the housing assembly (1). The drive gear (8) is connected to the drive motor (7) and is engaged with the movable rack (21). The drive gear (8) can drive the drive rack to move relative to the housing assembly (1).

10. A coffee machine, characterized in that, include: The coffee preparation system as described in any one of claims 1-9.

Images