Beverage machine and brewing seat

Abstract

The present invention relates to a beverage machine and a brewing seat, the beverage machine comprising: a main frame defining a mounting space; the brewing seat is detachably mounted in the mounting space; the brewing assembly is arranged on the main frame, and the brewing assembly comprises a brewing head; the brewing seat comprises a shell, a brewing cylinder and a lower piston, a containing cavity is defined in the shell, the brewing cylinder is movably arranged in the containing cavity, the brewing head and the lower piston are connected with the brewing cylinder to form a brewing cavity, and the brewing cylinder can selectively move relative to the shell so as to be coaxial or staggered with the brewing head; a self-locking mechanism is arranged on the brewing seat, an unlocking part is arranged in the mounting space, and the unlocking part is connected with the self-locking mechanism to allow the brewing cylinder to move relative to the shell; the brewing seat is removed from the mounting space, the unlocking part is separated from the self-locking mechanism, and the self-locking mechanism limits the brewing cylinder to move relative to the shell. When the brewing base is in different states, the brewing cylinder can be automatically locked and smoothly move, and the cleaning convenience and the use safety of the beverage machine are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of beverage preparation technology, and more particularly to a beverage machine and a brewing base. Background Technology

[0002] Beverage machines for preparing beverages, particularly coffee or tea, are known in the art. These machines include a brewing device comprising a brewing chamber with an opening through which the material to be brewed can be introduced and discharged.

[0003] Taking a fully automatic coffee machine as an example, the brewing unit is the core mechanism. Its internal structure generally includes a brewing component, a brewing cylinder, and a lower piston assembly. It is primarily used to brew coffee grounds to produce coffee liquid, thus playing a decisive role in the taste of the coffee. Because the existing brewing unit or brewing cylinder is fixed inside the machine, it is impossible to remove and clean the core brewing component separately. As a result, prolonged use can cause the piston filter of the brewing unit to become clogged. After multiple brewings, insufficient internal pressure is common, directly affecting the final taste of the coffee. Furthermore, because users cannot effectively clean the inside of the core brewing component, residual coffee grounds cannot be removed in time and can become moldy, affecting not only the taste of the coffee but also contaminating the brewing cylinder.

[0004] Therefore, the current problem to be solved is to ensure that the coffee machine has sufficient pressure during the brewing process so that the coffee has a good taste after brewing, while also ensuring that the brewing chamber is kept clean and hygienic. Summary of the Invention

[0005] One object of the present invention is to provide a beverage machine that is easy to clean and reliable to use.

[0006] Another object of the present invention is to provide a brewing base that is easy to clean and reliable in use.

[0007] To achieve the above-mentioned objectives, the present invention provides a beverage machine, comprising:

[0008] The main frame limits the installation space;

[0009] A brewing base is detachably installed in the installation space;

[0010] A brewing assembly is disposed on the main frame, and the brewing assembly includes a brewing head;

[0011] The brewing seat comprises a shell, a brewing cylinder and a lower piston, the shell defines a containing cavity, the brewing cylinder is movably arranged in the containing cavity, the brewing head and the lower piston are respectively engaged with the brewing cylinder to form a brewing cavity, and the brewing cylinder is selectively movable relative to the shell to be coaxial with or dislocated from the brewing head;

[0012] The brewing seat is provided with a self-locking mechanism, the installation space is provided with an unlocking part, the unlocking part is connected with the self-locking mechanism to allow the brewing cylinder to move relative to the shell, the brewing seat is removed from the installation space, the unlocking part is separated from the self-locking mechanism, and the self-locking mechanism limits the movement of the brewing cylinder relative to the shell.

[0013] Compared with the prior art, the brewing seat has the beneficial effects that by optimizing the structural layout of the brewing seat and the position layout of the self-locking mechanism and the unlocking part, the brewing cylinder can be automatically locked and smoothly moved in different states, and the cleaning convenience, assembly accuracy and use safety of the beverage machine are effectively improved. The brewing cylinder can be automatically locked after the brewing seat is detached from the main frame, the accidental movement is prevented, the safety and controllability of the equipment are improved, and the controlled switching of the limitation on the movement of the brewing cylinder between the installation state and the detachment state of the brewing seat is ensured, so that the assembly accuracy and operation safety are effectively improved.

[0014] As a further improvement of an embodiment of the present application, the main frame is further provided with a driving mechanism, the driving mechanism comprises a driving shaft, the driving shaft drives the brewing cylinder to rotate relative to the shell, the brewing seat is removed or / and installed from the installation space along the axial direction of the driving shaft, and the unlocking part is arranged on the main frame and protrudes towards the installation space along the axial direction of the driving shaft.

[0015] As a further improvement of an embodiment of the present application, the self-locking mechanism comprises a lock rod and a first elastic member, the lock rod and the first elastic member are arranged in the containing cavity, the brewing seat is provided with a clamping block, the clamping block is fixed relative to the brewing cylinder, one end of the lock rod is provided with a locking hook, the locking hook is clamped on the clamping block to limit the rotation of the brewing cylinder relative to the brewing seat towards a position coaxial with the brewing head, and the first elastic member presses the lock rod to keep the locking hook clamped on the clamping block.

[0016] As a further improvement of an embodiment of the present application, a guide cylinder is arranged in the containing cavity, the first elastic member is arranged in the guide cylinder and presses the other end of the lock rod, or the first elastic member is arranged at the pivoting position of the lock rod, and when the brewing seat is installed in the installation space, the unlocking part can press the other end of the lock rod along the axial direction of the driving shaft to separate the locking hook from the clamping block.

[0017] As a further improvement of one embodiment of the application, the brewing cylinder is rotatable relative to the housing between a first position in which the axis of the brewing cylinder is vertical and a second position in which the axis of the brewing cylinder is coaxial with the brewing head; the brewing assembly further comprises a support seat supporting the brewing head, the support seat being fixedly connected to the main frame, the brewing seat being detachably locked with the support seat.

[0018] As a further improvement of one embodiment of the application, the brewing seat is provided with a locking portion interfering with the support seat along the axial direction of the drive shaft to limit the brewing seat from moving out of the mounting space, and an unlocking member operable to move the locking portion along a direction coaxial with the brewing head to allow the brewing seat to move out of the mounting space.

[0019] As a further improvement of one embodiment of the application, the housing is provided with a handle, the longitudinal extension direction of the handle being parallel to the axial direction of the brewing head; along the longitudinal extension direction of the handle, the unlocking member is arranged at the end of the handle close to the brewing head.

[0020] As a further improvement of one embodiment of the application, one of the housing and the support seat is provided with a guide groove extending along the axial direction of the drive shaft, and the other of the housing and the support seat is provided with a guide rib extending along the axial direction of the drive shaft, the guide rib being inserted into the guide groove to guide the mounting of the brewing seat; along the guide direction of the guide rib, the outer side of the support seat is provided with a clamping groove, and the housing is provided with a clamping rib arranged above the locking portion; along the axial direction of the brewing head, the side opposite to the housing of the support seat is provided with a limiting groove, the clamping rib and the clamping groove are inserted, and the locking portion and the limiting groove are inserted.

[0021] As a further improvement of one embodiment of the application, the outer side of the housing is provided with a clamping position, the unlocking member is linked with the locking portion, and the unlocking member is arranged spaced apart from the clamping position, the unlocking member being operable to move towards the clamping position to move the locking portion.

[0022] As a further improvement of one embodiment of the application, the outer side of the housing is provided with a protrusion, the unlocking member and the clamping position are arranged at two sides of the protrusion respectively; a connecting rod is arranged between the unlocking member and the locking portion, the unlocking member moving towards the clamping position to be at least partially embedded in the protrusion, and the connecting rod moving with the unlocking member to move the locking portion.

[0023] As a further improvement of the embodiment of the present application, the main frame is further provided with a driving mechanism, the driving mechanism comprises a driving shaft, the driving shaft is provided with a key groove; the shell is provided with a transmission connection hole, the transmission connection hole is provided with a protruding tooth, and the transmission connection hole and the driving shaft are drivingly connected through the protruding tooth and the key groove.

[0024] As a further improvement of the embodiment of the present application, when the brewing seat is in a state of being mounted in the mounting space, the protruding tooth and the key groove correspond in the circumferential position of the driving shaft to achieve power transmission; when the brewing seat is in a dismounted state, the brewing cylinder is in the first position, the protruding tooth and the key groove correspond in the circumferential position of the driving shaft to allow the brewing seat to be mounted in the mounting space along the axial direction of the driving shaft; the brewing cylinder deviates from the first position, and the protruding tooth and the key groove are staggered in the circumferential position of the driving shaft to limit the brewing seat from being mounted in the mounting space along the axial direction of the driving shaft.

[0025] As a further improvement of the embodiment of the present application, the brewing cylinder has an opening, the edge of the opening protrudes outward along the radial direction of the brewing cylinder, the outer wall of the brewing cylinder is provided with a guide column, the cavity wall of the accommodating cavity is provided with an arc-shaped guide groove and an arc-shaped guide plate, the arc-shaped guide plate is located above the arc-shaped guide groove, the guide column is inserted into the arc-shaped guide groove, the edge of the opening abuts on the arc-shaped guide plate, and the brewing cylinder rotates along the path defined by the arc-shaped guide groove and the arc-shaped guide plate.

[0026] As a further improvement of the embodiment of the present application, the brewing cylinder rotates relative to the shell between a first position and a second position, in the first position, the axis of the brewing cylinder is vertical, and in the second position, the axis of the brewing cylinder is coaxial with the brewing head; the shell comprises a top plate and a protruding portion, the top plate and the protruding portion are arranged in sequence along the rotation path of the brewing cylinder from the first position to the second position, the protruding portion protrudes towards the brewing head, and the arc-shaped guide plate is formed by the top plate extending towards the inner side of the protruding portion.

[0027] The present application also relates to a brewing seat, which comprises a shell, a brewing cylinder and a lower piston, the shell defines an accommodating cavity, the brewing cylinder is movably arranged in the accommodating cavity, the lower piston is arranged in the brewing cylinder and can move relative to the brewing cylinder, the brewing cylinder can be switched between a first position and a second position relative to the shell, and the brewing seat is provided with a self-locking mechanism for locking the brewing cylinder in the first position.

[0028] As a further improvement of the embodiment of the present application, the self-locking mechanism comprises a locking hook, the brewing cylinder rotates relative to the shell between the first position and the second position, the locking hook limits the rotation of the brewing cylinder from the first position to the second position; under the action of external force, the restriction of the locking hook to the brewing cylinder can be removed.

[0029] As a further improvement of the embodiment of the present application, the shell is provided with a transmission connection hole, a plurality of convex teeth are arranged in the transmission connection hole, the number of the convex teeth is an odd number greater than 1, and the convex teeth are equidistantly and circumferentially arranged on the inner wall of the transmission connection hole.

[0030] As a further improvement of the embodiment of the present application, the self-locking mechanism comprises a locking hook and a first elastic member, the locking hook and the first elastic member are arranged in the accommodating cavity, the brewing seat is provided with a clamping block, the clamping block is fixed relative to the brewing cylinder, the locking hook is arranged at one end of the locking rod, the locking hook is clamped in the clamping block to limit the switching of the brewing cylinder from the first position to the second position relative to the brewing seat; the first elastic member abuts against the locking rod to keep the locking hook clamped with the clamping block.

[0031] As a further improvement of the embodiment of the present application, the accommodating cavity is provided with a guide cylinder, the first elastic member is arranged in the guide cylinder and abuts against the other end of the locking rod; or, the first elastic member is arranged at the pivoting position of the locking rod; under the action of external force, the clamping block can be separated from the locking hook.

[0032] As a further improvement of the embodiment of the present application, the brewing cylinder has a slag guide plate, the slag guide plate extends downwardly and obliquely from one side of the brewing cylinder, the slag guide plate serves as a force application point of external force and is used to pull the brewing cylinder to remove the restriction of the locking hook to the brewing cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a schematic view of a beverage machine according to an embodiment of the present application.

[0034] Figure 2 is a perspective view of the beverage machine in Figure 1 .

[0035] Figure 3 is a schematic view of a brewing seat of the beverage machine in Figure 1 .

[0036] Figure 4 is a sectional view of the brewing seat in Figure 3 along line A-A.

[0037] Figure 5 is a sectional view of the brewing seat in Figure 3An exploded view of the brewing base and brewing components of the beverage machine.

[0038] Figure 6 yes Figure 3 A schematic diagram of another structural form of the beverage machine that combines the brewing base and the brewing component.

[0039] Figure 7 yes Figure 6 The diagram shows a beverage machine in which the brewing tank is positioned offset from the upper piston.

[0040] Figure 8 yes Figure 6 A schematic diagram showing the brewing tank of a beverage machine positioned coaxially with the upper piston.

[0041] Figure 9 yes Figure 6 A schematic diagram showing the separation of the lid and brewing base in a beverage machine.

[0042] Figure 10 yes Figure 6 A schematic diagram from a perspective showing that the brewing base and brewing components of a beverage machine are separated.

[0043] Figure 11 yes Figure 6 A three-dimensional diagram from another perspective showing the separation of the brewing base and the brewing component in a beverage machine.

[0044] Figure 12 yes Figure 6 An exploded view of the brewing base of a beverage machine.

[0045] Figure 13 yes Figure 3 A three-dimensional schematic diagram of another structural form of the beverage machine that combines the brewing base and the brewing component.

[0046] Figure 14 yes Figure 13 A 3D diagram showing the combination of the brewing base and the brewing components of a beverage machine.

[0047] The repeated use of the accompanying drawings in this specification and in the drawings is intended to represent the same or similar features or elements of this application. Detailed Implementation

[0048] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0049] It should be understood that the terms such as "upper", "above", "lower", "below", and the like used herein for spatially relative positions are described for the purpose of convenience in describing one unit or feature to another unit or feature shown in the drawings. The spatially relative terms can be intended to include different orientations of the device in use or operation in addition to the orientation shown in the figures. The terms "first", "second", and "third" used herein can be used interchangeably to distinguish one component from another component, and these terms are not intended to represent the position or importance of the respective components.

[0050] The present application provides a beverage machine 100, referring to Figures 1 to 4 The beverage machine 100 includes a main frame 10, a brewing seat 20, and a brewing assembly 30. The main frame 10 defines a mounting space 11, which can be used to mount the brewing seat 20. The brewing assembly 30 is arranged in the main frame 10 and includes a brewing head 33 (refer to Figure 7 ). The main frame 10 serves as a base component to carry the brewing seat 20 and the brewing assembly 30, which can be configured as a housing, a main body support, etc. When the brewing seat 20 is mounted in the mounting space 11, one side of the brewing seat 20 is provided with a residue receiving box 12 for collecting raw material residue ejected from the brewing cylinder 22.

[0051] The brewing seat 20 specifically includes a housing 21, a brewing cylinder 22, and a lower piston 23. The housing 21 defines a receiving cavity 211, and the brewing cylinder 22 is movably arranged in the receiving cavity 211. When the brewing seat 20 is mounted in the mounting space 11, the brewing head 33 and the lower piston 23 are respectively engaged with the brewing cylinder 22 to form a brewing cavity. The brewing cylinder 22 is selectively movable relative to the housing 21 to be coaxial or misaligned with the brewing head 33. "Coaxial" means that the axis of the brewing cylinder 22 is aligned with the axis of the brewing head 33, and the axis of the brewing cylinder 22 coincides with the axis of the brewing head 33. At this time, the brewing cylinder 22 is in one kind of working state, and the brewing head 33 can be engaged with the brewing cylinder 22 to press the powder and brew, so as to realize full extraction of the raw material and ensure full brewing effect of the beverage. "Misaligned" means that the axis of the brewing cylinder 22 is not coincident with the axis of the brewing head 33. At this time, the brewing cylinder 22 is in another working state, which is convenient for receiving beverage raw material, so as to facilitate the brewing of the next cup of beverage by the beverage machine 100.

[0052] When the user maintains, disassembles or cleans, the brewing seat 20 is easily removed from or reassembled into the main frame 10, the entire brewing seat 20 can be disassembled and cleaned, and the brewing seat 20 can be directly placed at the water flow for flushing to clean the brewing cylinder 22, the lower piston 23 and the shell 21, effectively improving the convenience of cleaning operation. Further, the shell 21 generally has a corner / structural dead angle, which is easy to accumulate raw material residues / powder / liquid during beverage preparation. The brewing seat 21 can be disassembled together with the shell 21, which can avoid the situation that the corner / structural dead angle of the shell 21 is not easy to clean, and reduce the health risks caused by residue retention. At the same time, after the brewing seat 20 is disassembled, the user can clean the brewing head 33 of the brewing assembly 30 separately.

[0053] The brewing process of the beverage machine is step-by-step, which is roughly divided into: powder receiving (initial state), powder pressing, brewing, residue scraping, and returning to the initial state. Among them, the relative positions of the brewing cylinder 22, the lower piston 23 and the brewing head 33 in each step have specific positional relationships, and these positional relationships are realized by controlling the motor to automatically drive the brewing cylinder 22, the lower piston 23 and the brewing head 33 through the control board. After the brewing seat 20 is disassembled and reassembled into the mounting space 11, the relative positional relationship of the brewing cylinder 22, the lower piston 23 and the brewing head 33 must be in the initial state, so as not to affect the subsequent control logic execution of the control board and to enable the beverage machine to safely complete the brewing process.

[0054] In this embodiment, the brewing seat 20 is provided with a self-locking mechanism 25, and the mounting space 11 of the main frame 10 is provided with an unlocking part 15. The unlocking part 15 is connected with the self-locking mechanism 25 to allow the brewing cylinder 22 to move relative to the shell 21; when the brewing seat 20 is removed from the mounting space 11, the unlocking part 15 is separated from the self-locking mechanism 25, and the self-locking mechanism 25 automatically limits the movement of the brewing cylinder 22 relative to the shell 21. The self-locking mechanism 25 ensures that when the brewing seat 20 is disassembled, the position state of the brewing cylinder 22 and the lower piston 23 can be maintained as the initial state, and the brewing cylinder 22 and the lower piston 23 will not randomly switch the relative position relative to the shell 21, ensuring that the use is not affected when reassembled. The unlocking part 15 ensures that after the brewing seat 20 is assembled into the mounting space 11, the brewing cylinder 22 and the lower piston 23 can move freely under the drive of the motor, and will not affect the positional switching of the brewing cylinder 22 and the lower piston 23 required in the brewing step.

[0055] By optimizing the structural layout of the brewing seat 20 and the positional layout of the self-locking mechanism and the unlocking part, the brewing cylinder 22 can be automatically locked and smoothly moved in different states of the brewing seat 20, effectively improving the cleaning convenience, assembly accuracy and use safety of the beverage machine 100. The above structure ensures that the restriction on the movement of the brewing cylinder 22 is controlled to switch between the assembled state and the disassembled state of the brewing seat 20, effectively improving the assembly accuracy and operation safety.

[0056] The brewing base 20, as the core component of the beverage machine 100 for efficient brewing and convenient maintenance, is scientifically coordinated with the outer shell 21, brewing cylinder 22, and lower piston 23. The brewing cylinder 22 can flexibly switch between different positions, enabling brewing operations (pressing powder, brewing, and scraping residue) when coaxial with the brewing head 33, and also receiving powder in a staggered position. The brewing base 20 can be completely disassembled for thorough cleaning. The brewing head 33 and lower piston 23 are respectively engaged with the brewing cylinder 22, forming a brewing chamber that ensures sealing and uniform pressure distribution during the brewing process, thereby improving the taste of the beverage and brewing efficiency.

[0057] The main frame 10 serves as the basic load-bearing structure of the beverage machine 100, defining an installation space 11 for mounting the brewing base 20 and providing crucial support for the stable assembly, power transmission, and positioning of the brewing base 20. A drive mechanism is provided on the main frame 10, including a drive shaft 16. The drive shaft 16 drives the brewing cylinder 22 to rotate relative to the outer casing 21. The brewing base 20 can be removed and / or installed from the installation space 11 along the axial direction of the drive shaft 16. The unlocking part 15 on the main frame 10 also protrudes into the installation space 11 along the axial direction of the drive shaft 16, facilitating automatic activation of the self-locking mechanism 25 during installation and / or removal, thus improving the continuity and convenience of operation.

[0058] With the brewing base 20 being detachable from the main frame 10 to ensure convenient cleaning, the self-locking mechanism 25 and the unlocking part 15 in this embodiment of the invention effectively improve the safety and ease of use of the brewing base 20. The self-locking mechanism 25 is provided on the brewing base 20, and the unlocking part 15 is provided within the installation space 11 of the main frame 10. The two work together to achieve controlled locking and unlocking of the brewing tank 22 in different states.

[0059] refer to Figure 4 The self-locking mechanism 25 includes a locking rod 251 and a first elastic element 255, both of which are disposed within the receiving cavity 211 defined by the outer casing 21. A locking block 221 is provided on the brewing base 20, which is fixed relative to the brewing cylinder 22. One end of the locking rod 251 has a locking hook 253, which engages with the locking block 221 to restrict the brewing cylinder 22 from rotating relative to the brewing base 20 towards a position coaxial with the brewing head 33, ensuring that the brewing cylinder 22 will not rotate accidentally after the self-frame 10 of the brewing base 20 is disassembled. The first elastic element 255 presses against the locking rod 251, keeping the locking hook 253 and the locking block 221 in a locked relationship, thereby achieving automatic locking. This ensures the safe fixation of the brewing cylinder 22 in a non-working state without additional user intervention.

[0060] In this embodiment, the locking block 221 is located on the outer wall of the brewing cylinder 22, and the locking block 221 is integrally formed with the brewing cylinder 22. In other embodiments, the locking block 221 may be located on the piston drive housing 231, which is fixedly connected to the brewing cylinder 22 and is used to accommodate at least part of the transmission structure, such as gears, racks, etc., that drives the lower piston 23 and / or the brewing cylinder 22. That is, the locking block 221 can be provided on any component fixed relative to the brewing cylinder 22, and the locking block 221 remains fixed relative to the brewing cylinder 22 regardless of how the brewing cylinder 22 moves.

[0061] When the brewing base 20 is installed in the installation space 11, the unlocking part 15 can press against the other end of the locking rod 251 along the axial direction of the drive shaft 16, causing the locking hook 253 to separate from the locking block 221, thereby allowing the brewing cylinder 22 to move relative to the outer shell 21, realizing the switching between coaxial or misaligned with the brewing head 33. When the brewing base 20 is removed from the installation space 11, the unlocking part 15 separates from the self-locking mechanism 25, the locking hook 253 automatically returns to its original position and engages with the locking block 221, restricting the brewing cylinder 22 to a specific position, preventing it from shaking, rotating or other unstable phenomena during disassembly and cleaning, further ensuring the safety of equipment use and the accuracy of assembly.

[0062] Reference Figure 4 The cavity 211 is provided with a guide cylinder 212. The first elastic element 255 is disposed in the guide cylinder 212 and presses against the other end of the locking rod 251. The first elastic element 255 can be a spring. When the brewing seat 20 is installed in the installation space 11, the unlocking part 15 can press against the other end of the locking rod 251 along the axial direction of the drive shaft 16, and apply pressure to the first elastic element 255 so that the locking hook 253 is separated from the locking block 221.

[0063] The guide cylinder 212 not only provides stable support for the first elastic element 255, but also ensures the smooth movement of the locking rod 251 under force, avoiding jamming or displacement during the separation of the locking hook 253 and the locking block 221, further improving the smoothness and stability of the brewing base 20. In addition, the guiding function of the guide cylinder 212 also helps to maintain the movement path of the locking rod 251 during long-term use, reducing the risk of functional failure due to wear or deformation.

[0064] In another embodiment, the first elastic element 255 is a torsion spring, which is located at the pivot position of the locking rod 251. Under the elastic action of the torsion spring, the locking hook 253 automatically returns to its original position and engages with the locking block 221; when the brewing base 20 is installed in the installation space 11, the unlocking part 15 can press against the other end of the locking rod 251 along the axial direction of the drive shaft 16, applying a certain reverse force to the torsion spring, so that the locking hook 253 separates from the locking block 221.

[0065] Reference Figures 2 to 5In one embodiment, to facilitate intuitive user operation in disassembling the brewing base 20, a retaining position 213 is provided on the outer side of the outer shell 21. The unlocking member 262 is linked with the locking part 261, and the unlocking member 262 and the retaining position 213 are spaced apart. The unlocking member 262 can be operably moved toward the retaining position 213 to drive the locking part 261 to move. The user can easily push or pull the unlocking member 262 to drive the locking part 261 to move, thereby releasing or locking the structure.

[0066] Among them, the holding position 213 is a structural part on the outer shell 21 specifically designed for finger holding and force application, which makes it easy for the user to insert their fingers into the holding position to apply force when installing or removing the brewing base 20.

[0067] The unlocking element 262 and the retaining position 213 can be spaced apart along a horizontal direction perpendicular to the drive shaft 16 axis. The unlocking element 262 protrudes outward from the housing 21, and the housing 21 is provided with a raised rib 214 that extends vertically. The housing 21 is also provided with a recess 215, which is located at the connection between the two sides of the housing 21 and adjacent to the raised rib 214. The retaining position 213 is defined by one side of the raised rib 214 and the recess 215.

[0068] The protruding design of the unlocking member 262, combined with the recess 215, allows for easy gripping. When the user presses the unlocking member 262 with their thumb, the protruding unlocking member 262 provides a thumb holding position 213. The remaining fingers can hold the thumb in the holding position 213 defined by the protruding rib 214 and the recess 215. The recess 215 is located at the connection between the two sides. When the fingers are in the recess 215, it is easier to apply force and hold the fingers in conjunction with the protruding rib 214, thereby facilitating the unlocking of the locking member and the removal of the brewing base 20 from the installation space 11.

[0069] Reference Figure 6 Another structural form of the unlocking element 262 and the holding position 213, wherein the structural principle of the unlocking element 262 is the same as described above. Figure 3 The structure of the unlocking member 262 is similar. The outer shell 21 is provided with a protrusion 241, and the unlocking member 262 and the locking position 213 are respectively provided on both sides of the protrusion 241; a connecting rod 263 is provided between the unlocking member 262 and the locking part 261. The unlocking member 262 moves toward the locking position 213 to at least partially embed itself into the protrusion 241, and the connecting rod 263 drives the locking part 261 as the unlocking member 262 moves.

[0070] The card holder 213 features an optimized structural design, utilizing a protrusion 241 on the outer casing 21 as the gripping force point. This effectively improves user comfort and anti-slip properties, reduces the risk of misoperation, and meets ergonomic requirements. The linkage 263 design ensures that the unlocking component 262 and the locking component 261 move synchronously. The entire structure is compact, the operation is smooth, and the structure is durable and reliable under long-term use.

[0071] Reference Figure 6 , Figure 9 and Figure 11 The outer casing 21 includes a cover component 240, which is fixedly connected to the outer casing 21. The protrusion 241 can be defined by the cover component 240. To enhance the automatic reset capability of the locking structure, a second elastic member 265 is provided between the cover component 240 and the unlocking member 262. The second elastic member 265 is located on the inner side of the cover component 240 and presses against the unlocking member 262 in a direction away from the locking position 213. When the unlocking member 262 is released, the second elastic member 265 can automatically push the unlocking member 262 and then drive the connecting rod 263 to reset, restoring the locked state and ensuring that the assembled brewing base 20 is always in a safe and reliable locked state.

[0072] The rational design of the brewing base 20 not only ensures efficient cooperation between components, but also allows the entire brewing base 20 to be disassembled for cleaning or maintenance, further improving the hygiene and ease of maintenance of the beverage machine 100, and addressing the problems of inconvenient cleaning and inaccurate positioning in traditional beverage machine 100 structures. The lid component 240, as an independent component defining the protrusion 241, makes it easier to ensure the dimensions of the protrusion 241, and also facilitates the installation of the second elastic element 265 and the unlocking element 262.

[0073] In one embodiment, the outer casing 21 is provided with a first recess 243 and a second recess 245. The first recess 243 is adjacent to the unlocking member 262, and the second recess 245 is located on one side of the cover member 240. The holding position 213 is defined by the side of the cover member 240 and the second recess 245.

[0074] The cover component 240 is gripped with two recessed parts. When the user presses the unlocking part 262 with their thumb, the first recessed part 243 provides space for the thumb to enter, while the other fingers can be held on the side of the cover component 240 and the second recessed part 245 provides space for them to enter, thereby unlocking the locking part 261 and removing the brewing base 20 from the installation space 11.

[0075] This invention deeply integrates the locking / unlocking structure with human-machine interface, enabling users to easily install, position, and disassemble the brewing base 20. This not only improves the operational safety and convenience of the beverage machine 100, but also effectively prevents equipment damage and safety hazards caused by improper assembly or misoperation.

[0076] Reference Figure 7 and Figure 8 The brewing tank 22 can switch between a first position and a second position relative to the outer shell 21. The first position is usually the working state where the axis of the brewing tank 22 is vertical, and the brewing tank 22 is misaligned with the brewing head 33. The second position is the working state where the brewing tank 22 and the brewing head 33 are coaxial. The brewing assembly 30 also includes a support base 31 that supports the brewing head 33. The support base 31 is fixedly connected to the main frame 10, and the brewing base 20 and the support base 31 are detachably locked.

[0077] Locking the brewing base 20 to the support base 31 ensures the precise alignment of the brewing tank 22 and the brewing head 33, further ensuring the stability of the brewing tank 22 during the brewing process and preventing the brewing tank 22 from shaking or becoming misaligned during the brewing process, thereby ensuring the accuracy of the brewing and the taste of the beverage.

[0078] In one embodiment, the locking part 261 interferes with the support base 31 along the axial direction of the drive shaft 16 to restrict the brewing base 20 from moving out of the installation space 11, ensuring that the brewing base 20 is stably locked on the main frame 10 in the working state. The unlocking part 262 operably drives the locking part 261 to move in a direction coaxial with the brewing head 33, thereby allowing the brewing base 20 to be smoothly moved out of the installation space 11, achieving efficient disassembly and maintenance. When the user needs to disassemble the brewing base 20, he only needs to operate the unlocking part 262 to release the restriction of the locking part 261. The entire operation process does not require complicated tools and is convenient and efficient.

[0079] Reference Figures 10 to 12 To facilitate the installation and disassembly of the brewing base 20, one of the outer shell 21 and the support base 31 is provided with a guide groove 311 extending axially along the drive shaft 16, and the other of the outer shell 21 and the support base 31 is provided with a guide rib 201 extending axially along the drive shaft 16. The guide rib 201 is inserted into the guide groove 311 to guide the installation of the brewing base 20. Along the guiding direction of the guide rib 201, the outer end face of the support base 31 is provided with a slot 312, and the outer shell 21 is provided with a retaining rib 202, which is located above the locking part 261; the retaining rib 202 is inserted into the slot 312. Along the axial direction of the brewing head 33, the side of the support base 31 opposite to the outer shell 21 is provided with a limiting groove 313, and the locking part 261 is inserted into the limiting groove 313 to achieve axial locking of the brewing base 20 relative to the support base 31 along the drive shaft 16.

[0080] Along the axial direction of the drive shaft 16, the brewing base 20 can slide smoothly under the guidance of the guide groove 311 and guide rib 201, ensuring accurate installation and maintaining stability during disassembly and installation, avoiding errors caused by shaking. Along the guide direction of the guide groove 311 and guide rib 201, the locking rib 202 can also be inserted into the locking groove 312, and the locking part 261 can be inserted into the limiting groove 313, further enhancing the structural stability and ensuring that the brewing base 20 will not move unexpectedly during use, improving the overall safety and reliability of the brewing base 20. At the same time, this design simplifies the user's operation steps, making the maintenance and replacement of the brewing base 20 faster and more efficient.

[0081] In this embodiment, the outer shell 21 is provided with both guide grooves and guide ribs, and the support base 31 is provided with both guide ribs and guide grooves. That is, the outer shell 21 and the support base 31 are respectively provided with mutually cooperating step-shaped guide structures. Through this dual-guide interlocking design, the precise fit between the guide ribs and the guide grooves is ensured, further improving the installation accuracy and stability of the brewing base 20. The interlocking design not only improves the overall rigidity of the structure, but also reduces the risk caused by improper operation, making the installation and disassembly process of the brewing base 20 smoother.

[0082] In one embodiment, the main frame 10 is further provided with a drive mechanism, which includes a motor (not shown in the figure) and a drive shaft 16. The drive shaft 16 is provided with a keyway 161. The motor rotates to drive the drive shaft 16 to rotate. The brewing base 20 is provided with a transmission connection hole 27. The transmission connection hole 27 is provided with a tooth 271. The transmission connection hole 27 and the drive shaft 16 are drivenly connected through the tooth 271 and the keyway 161.

[0083] A transmission structure is provided between the drive shaft 16 and the lower piston 23. This transmission structure is at least partially housed within the piston drive housing 231. The transmission structure includes a gear set 232 and a rack 233. The rack 233 meshes with both sides of the gear set 232, and the lower piston 23 is fixed relative to the rack 233. A motor drives the drive shaft 16 to rotate. The gear set 232 engages with the rack 233, causing the rack 233 to move the lower piston 23 up and down, thereby pushing out the raw material residue and resetting the piston. When the rack 233 moves the lower piston 23 to its extreme position, the drive shaft 16 can drive the brewing cylinder 22 to rotate between a first position and a second position via the transmission structure.

[0084] The transmission connection hole 27 can be the connection hole of the output end gear inside the piston drive housing 231 that is driven and connected to the drive shaft 16. The transmission connection hole 27 is exposed from the housing 21 to facilitate the transmission connection with the drive shaft 16.

[0085] The drive mechanism allows the brewing cylinder 22 to rotate between the first and second positions, automating powder dispensing and brewing, further enhancing the automation and efficiency of the beverage machine 100. The coordinated design of the convex tooth 271 and keyway 161 ensures the stability and reliability of the transmission connection, preventing problems such as misalignment or inability to rotate the brewing cylinder 22 due to transmission failure, effectively improving the overall performance and stability of the beverage machine 100. Furthermore, the drive mechanism design also considers ease of maintenance and replacement, allowing users to easily perform replacements or repairs, reducing maintenance costs and time.

[0086] In addition, the self-locking mechanism 25 is not absolutely locked. When the user needs to clean the brewing base 20 after disassembling it, the user can apply external force to the brewing cylinder 22 to separate the locking hook 253 from the locking block 221, thereby changing the position of the brewing cylinder 22 relative to the outer shell 21. The brewing cylinder 22 can move from the first position to the second position.

[0087] Whether the brewing tank 22 is in the first or second position, the space occupied by the brewing tank results in a small gap between it and the outer casing 21, making it difficult to rinse or to use cleaning tools such as a cleaning brush to clean inside the outer casing 21. When the brewing tank 22 moves from the first to the second position, the space inside the outer casing 21 previously occupied by the brewing tank in the first position becomes available, allowing for a more thorough cleaning of this area. However, if the brewing tank 22 is locked, it can only be in the first position, making it impossible to rinse or clean the interior of the outer casing 21 at that position.

[0088] In this embodiment, the brewing cylinder 22 has a slag guide plate 222, which extends downward at an angle from one side of the brewing cylinder 22. The slag guide plate 222 can serve as a point of application of external force to pull the brewing cylinder 22 and release the locking hook 253 from its restriction. By applying external force to the slag guide plate 222 on the outside of the brewing cylinder 22, the slag guide plate 222 acts as a point of application of external force to pull the brewing cylinder 22 so that the locking hook 253 disengages from the locking block 221. When the external force pulling the slag guide plate 222 is greater than the locking force of the first elastic member 255, the brewing cylinder 22 can be easily unlocked and its position changed. This design balances the security of automatic locking with the convenience of manual unlocking by the user, greatly improving the maintenance experience.

[0089] After the brewing cylinder 22 is unlocked and its position changed, to ensure that the brewing cylinder 22 is in the accurate position, when the brewing base 20 is in the installation space 11, the convex tooth 271 and the keyway 161 correspond in the circumferential position along the drive shaft 16 to achieve power transmission. When the brewing base 20 is in the disassembled state, the brewing cylinder 22 is in the first position, and the convex tooth 271 and the keyway 161 correspond in the circumferential position along the drive shaft 16 to allow the brewing base 20 to be installed into the installation space 11 along the axial direction of the drive shaft 16. When the brewing cylinder 22 is deviated from the first position, the convex tooth 271 and the keyway 161 are misaligned in the circumferential position along the drive shaft 16 to restrict the installation of the brewing base 20 into the installation space 11 along the axial direction of the drive shaft 16. That is, only when the brewing cylinder 22 is in the first position can the convex tooth 271 and the keyway 161 correspond in the circumferential position along the drive shaft 16. At this time, the user can smoothly install the brewing base 20 into the installation space 11 along the axial direction of the drive shaft 16.

[0090] This design effectively prevents the brewing base 20 from being accidentally installed onto the main frame 10 when the brewing cylinder 22 is not in the correct position, thus avoiding the problem of the beverage machine being unusable due to inaccurate positioning of the brewing cylinder 22, and further improving the safety and stability of the beverage machine 100. In addition, this design also ensures smooth installation and removal of the brewing base 20, allowing users to easily complete the installation and removal of the brewing base 20, improving the ease of operation of the beverage machine 100.

[0091] The brewing base 20 is provided with a transmission connection hole 27, and the transmission connection hole 27 is provided with protruding teeth 271. The number of protruding teeth 271 is an odd number greater than 1, and the protruding teeth 271 are circumferentially arranged at equal intervals on the inner wall of the transmission connection hole 27. The power transmission of the brewing base 20 after it is installed on the main frame 10 is realized through the cooperation of the protruding teeth 271 and the keyway 161. The cooperation of the odd number of protruding teeth 271 and the keyway 161 realizes the foolproof installation of the brewing base 20. Even if the user tries to install the brewing base 20 into the installation space 11 by mistake, the position of the protruding teeth 271 and the keyway 161 will be misaligned, and the installation of the brewing base 20 will not be possible. This avoids damage or safety hazards caused by incorrect assembly of the brewing base 20. This design not only improves the operational accuracy of the beverage machine 100, but also further enhances the reliability and durability of the beverage machine 100.

[0092] In one embodiment, the motion guiding and limiting structure of the brewing cylinder 22 has been systematically optimized to ensure that the brewing cylinder 22 can achieve a precisely controlled motion path and reliable limiting in different operating states such as assembly, disassembly, and brewing. The brewing cylinder 22 has an opening 223, and the edge 224 of the opening 223 protrudes outward along the radial direction of the brewing cylinder 22. The outer wall of the brewing cylinder 22 is provided with a guide post 225, and the cavity wall of the receiving cavity 211 is provided with an arc-shaped guide groove 203 and an arc-shaped guide plate 204, wherein the arc-shaped guide plate 204 is located above the arc-shaped guide groove 203, the guide post 225 is inserted into the arc-shaped guide groove 203, and the edge 224 of the opening 223 of the brewing cylinder 22 abuts against the arc-shaped guide plate 204, and the brewing cylinder 22 rotates along the path defined by the arc-shaped guide groove 203 and the arc-shaped guide plate 204.

[0093] The design of the arc-shaped guide groove 203 and the arc-shaped guide plate 204 not only provides stable rotation guidance for the brewing cylinder 22, but also ensures the smoothness and accuracy of the brewing cylinder 22 during rotation. The curvature of the arc-shaped guide groove 203 matches the rotation angle of the brewing cylinder 22, allowing the brewing cylinder 22 to stop accurately at the predetermined position, avoiding positioning errors caused by over- or under-pouring. The arc-shaped guide plate 204 supports the brewing cylinder 22, preventing displacement when the brewing cylinder 22 is subjected to the downward pressure of the brewing head 33, further ensuring the stability and reliability of the brewing cylinder 22.

[0094] The outer casing 21 includes a top plate and a protrusion 205, which are arranged sequentially along the rotation path of the brewing cylinder 22 from the first position to the second position. The protrusion 205 protrudes towards the brewing head 33, and the arc-shaped guide plate 204 extends from the inner side of the top plate towards the protrusion 205, meaning that the arc-shaped guide plate 204 and the top plate are integrally formed on the same arc surface, ensuring the overall structural strength of the brewing base 20. During the operation of the beverage machine 100, when the brewing head 33 presses the powder downwards, it will generate an impact force on the brewing cylinder 22 and the lower piston 23; the edge 224 of the brewing cylinder 22 can be supported on the arc-shaped guide plate 204, which can provide a supporting force in the opposite direction to the impact force, ensuring the stability of the brewing cylinder 22 during the operation of the beverage machine 100. In addition, the arc-shaped guide plate 204 can also assist in guiding the brewing cylinder 22 to switch between the first position and the second position.

[0095] When the brewing cylinder 22 is in the first position, the edge 224 of the opening 223 of the brewing cylinder 22 is exposed relative to the outer shell 21; when the brewing cylinder 22 is in the second position, the edge 224 of the opening 223 is covered by the outer shell 21. The brewing cylinder 22 rotates between the first and second positions, with the edge 224 of the opening 223 supported on the arc-shaped guide plate 204, forming a stable transition and ensuring that the brewing cylinder 22 does not wobble during rotation, thus improving the overall ease of operation and safety. This structural design not only strengthens the guiding effect of the movement trajectory but also effectively prevents the brewing cylinder 22 from derailing or jamming due to external forces, making the entire assembly and brewing process smoother and more stable.

[0096] In summary, through the above-described structure and components, the present invention achieves precise and controlled rotation and reliable positioning of the brewing tank 22 under different states, which not only improves the ease of operation and accuracy of the beverage machine 100, but also further enhances the reliability and durability of the beverage machine 100.

[0097] Reference Figure 13 and Figure 14 In one embodiment, another structural form of locking the brewing base 20 and the support base 31 includes a handle 28 on the outer side of the outer shell 21. The longitudinal extension direction of the handle 28 is parallel to the axial direction of the brewing head 33. Along the longitudinal extension direction of the handle 28, an unlocking member 262 is disposed at the end of the handle 28 near the brewing head 33. The handle 28 is ergonomically designed for easy gripping and operation. The unlocking member 262 is positioned appropriately to ensure that the user can easily access the unlocking member 262 while holding the handle 28 with one hand, further enhancing the user experience. The sensitive feedback of the unlocking member 262 during one-handed disassembly of the brewing base 20 provides the user with a precise sense of control. The user only needs to lightly press the unlocking member 262, and the locking part 261 will respond quickly and move smoothly along the axial direction of the drive shaft 16 to easily release the locked state.

[0098] The unlocking element 262 and the locking element 261 can be configured as a linked structure, achieving synchronized action through mechanical connection to ensure a stable and reliable unlocking process and avoid misoperation. In this embodiment, the unlocking element 262 and the locking element 261 are constructed as a single unit to ensure synchronicity and consistency in operation. A second elastic element 265 is provided between the unlocking element 262 and the housing 21, providing appropriate elasticity to ensure that the locking element 261 remains locked to the support base 31 and that the unlocking element 262 automatically resets when not in operation.

[0099] Reference Figures 1 to 14The present invention also relates to a brewing base 20, which, as an independent component, can be adapted to different beverage machines 100. The brewing base 20 includes a housing 21, a brewing cylinder 22, and a lower piston 23. The housing 21 defines a receiving cavity 211, the brewing cylinder 22 is movably disposed within the receiving cavity 211, and the lower piston 23 is placed within the brewing cylinder 22 and can move relative to the brewing cylinder 22. The brewing cylinder 22 can switch between a first position and a second position relative to the housing 21. The brewing base 20 is provided with a self-locking mechanism 25, which is used to lock the brewing cylinder 22 in the first position.

[0100] By setting a self-locking mechanism 25, after the brewing base 20 is disassembled as a whole, the self-locking mechanism 25 ensures that the position of the brewing cylinder 22 and the lower piston 23 can be maintained in the initial state, and the brewing cylinder 22 and the lower piston 23 will not arbitrarily switch relative to the outer shell 21, ensuring that it will not affect the use when reinstalled.

[0101] The self-locking mechanism 25 includes a locking hook 253, which restricts the brewing cylinder 22 from switching from a first position to a second position relative to the outer casing 21. Under external force, the restriction of the locking hook 253 on the brewing cylinder 22 can be released. External force-triggered unlocking ensures that after the brewing base 20 is installed in the installation space 11, the brewing cylinder 22 and the lower piston 23 can move freely under the drive of the motor, without affecting the position switching required by the brewing cylinder 22 and the lower piston 23 during the brewing process. Simultaneously, applying force also allows the brewing cylinder 22 to be flexibly unlocked, facilitating user adjustment of the brewing cylinder 22's position according to needs, further enhancing the practicality and user experience of the brewing base 20.

[0102] To ensure reliable power transmission and foolproof assembly, the brewing base 20 is provided with a transmission connection hole 27, and the transmission connection hole 27 is provided with protruding teeth 271, which cooperate with the keyway 161 on the drive shaft 16. The number of protruding teeth 271 is an odd number greater than 1, and the protruding teeth 271 are circumferentially arranged at equal intervals on the inner wall of the transmission connection hole 27.

[0103] The specific structure and function of the self-locking mechanism 25 are the same as those of the brewing base 20 described in the above beverage machine implementation, and will not be repeated here.

[0104] Based on the basic structure and principles of this invention, some modules can be modified according to actual needs to adapt to different application scenarios and functional requirements, further enhancing the flexibility and user experience of the beverage machine 100. For example, in the implementation of the self-locking mechanism 25, various structural forms can be adopted to meet the needs of different locking forces and operating habits. In addition to the mechanical self-locking scheme using a locking rod 251, elastic element, locking hook 253, and locking block 221, a hook-and-spring structure can also be selected, with the hook designed as a hook part with a certain elasticity, combined with the protrusion on the main frame. When the brewing base 20 is installed on the main frame, the protrusion pushes open the hook, releasing the lock on the brewing cylinder 22, allowing the brewing cylinder 22 to move freely; and after the brewing base 20 is removed, the hook automatically rebounds and locks the brewing cylinder 22, effectively preventing the brewing cylinder 22 from moving accidentally during disassembly and cleaning.

[0105] Regarding the locking and unlocking mechanisms, the layout and operation of the handle 28, unlocking component 262, and latching position 213 can be optimized and adjusted according to different ergonomic requirements. For example, the handle 28 can be designed with different cross-sectional shapes, with added anti-slip textures on the surface, or a button structure can be set in the middle of the handle 28, allowing the user to complete the unlocking operation simply by pressing the button. In addition, the spacing, travel distance, and structural connection method between the unlocking component 262 and the latching position 213 can also be adjusted according to the actual operating force and frequency, ensuring both structural robustness and durability while also ensuring easy and convenient operation.

[0106] The movement guidance and limiting structure of the brewing cylinder 22 can be flexibly configured in terms of the size and position of the guide post 225, the arc-shaped guide groove 203, and the arc-shaped guide plate 204 according to the specific installation space 11 of the main unit and the requirements of the movement path. For example, the bending radius and start and end angles of the arc-shaped guide groove 203 can be adjusted according to the actual space to achieve a smoother movement trajectory and higher assembly precision. The top plate, protrusion 205, and other structures on the outer shell 21 can also be structurally optimized according to the actual diameter and material of the brewing cylinder 22 to ensure the limiting function while facilitating cleaning and maintenance.

[0107] This invention, through systematic optimization of the structure of the beverage machine 100 and the brewing base 20, achieves organic cooperation among key components such as the main frame 10, brewing base 20, brewing cylinder 22, drive mechanism, and self-locking mechanism 25. By setting up the receiving cavity 211 defined by the outer shell 21, the movable cooperation between the brewing cylinder 22 and the outer shell 21, the automatic locking and manual unlocking mechanism, and the multi-level positioning and limiting structure between the main frame 10 and the brewing base 20, the technical difficulties of existing beverage machines 100 in areas such as cleaning the brewing cylinder 22, assembly positioning, and operational safety are effectively solved.

[0108] This invention not only achieves automatic locking and precise positioning of the brewing cylinder 22 in different states, preventing misoperation and accidental loosening, but also greatly improves the structural foolproofness and ease of maintenance. Components such as the brewing base 20 and the brewing cylinder 22 can be easily disassembled and thoroughly cleaned, significantly improving the hygiene of the beverage machine 100 and the user experience.

[0109] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0110] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A beverage machine, comprising: The main frame limits the installation space; A brewing base is detachably installed in the installation space; A brewing assembly is disposed on the main frame, and the brewing assembly includes a brewing head; The brewing base is characterized in that it includes a shell, a brewing cylinder and a lower piston, the shell defines a receiving cavity, the brewing cylinder is movably disposed in the receiving cavity, the brewing head and the lower piston are respectively engaged with the brewing cylinder to form a brewing cavity, and the brewing cylinder can selectively move relative to the shell to be coaxial or misaligned with the brewing head. The brewing base is provided with a self-locking mechanism, and the installation space is provided with an unlocking part. The unlocking part is connected to the self-locking mechanism to allow the brewing cylinder to move relative to the outer shell. When the brewing base is removed from the installation space, the unlocking part separates from the self-locking mechanism, and the self-locking mechanism restricts the movement of the brewing cylinder relative to the outer shell.

2. The beverage machine according to claim 1, characterized in that, The main frame is also provided with a drive mechanism, which includes a drive shaft that drives the brewing cylinder to rotate relative to the outer shell; the brewing base is removed from and / or installed in the installation space along the axial direction of the drive shaft; the unlocking part is provided on the main frame and protrudes into the installation space along the axial direction of the drive shaft.

3. The beverage machine according to claim 2, characterized in that, The self-locking mechanism includes a locking rod and a first elastic element, which are disposed in the receiving cavity. The brewing base is provided with a locking block, which is fixed relative to the brewing cylinder. One end of the locking rod is provided with a locking hook, which engages with the locking block to restrict the brewing cylinder from rotating relative to the brewing base toward a position coaxial with the brewing head. The first elastic element presses against the locking rod to keep the locking hook engaged with the locking block.

4. The beverage machine according to claim 3, characterized in that, The receiving cavity is provided with a guide cylinder, and the first elastic element is disposed in the guide cylinder and presses against the other end of the locking rod; or, the first elastic element is disposed at the pivot position of the locking rod; when the brewing seat is installed in the installation space, the unlocking part can press against the other end of the locking rod along the axial direction of the drive shaft to separate the locking hook from the locking block.

5. The beverage machine according to claim 2, characterized in that, The brewing cylinder rotates relative to the outer casing between a first position and a second position. In the first position, the axis of the brewing cylinder is vertical. In the second position, the axis of the brewing cylinder is coaxial with the brewing head. The brewing assembly also includes a support base for supporting the brewing head. The support base is fixedly connected to the main frame, and the brewing base is detachably locked to the support base.

6. The beverage machine according to claim 5, characterized in that, The brewing base is provided with a locking part and an unlocking part. The locking part interferes with the support base along the axial direction of the drive shaft to restrict the brewing base from moving out of the installation space. The unlocking part can operably drive the locking part to move in a direction coaxial with the brewing head to allow the brewing base to move out of the installation space.

7. The beverage machine according to claim 6, characterized in that, A handle is provided on the outer side of the housing. The longitudinal extension direction of the handle is parallel to the axial direction of the brewing head. Along the longitudinal extension direction of the handle, the unlocking member is provided at the end of the handle near the brewing head.

8. The beverage machine according to claim 6, characterized in that, One of the outer shell and the support base is provided with a guide groove extending axially along the drive shaft, and the other of the outer shell and the support base is provided with a guide rib extending axially along the drive shaft. The guide rib is inserted into the guide groove to guide the installation of the brewing base. Along the guiding direction of the guide rib, the outer end face of the support base is provided with a slot, and the outer shell is provided with a retaining rib. The retaining rib is located above the locking part. Along the axial direction of the brewing head, the support base is provided with a limiting groove on the side opposite to the outer shell. The retaining rib is inserted into the slot, and the locking part is inserted into the limiting groove.

9. The beverage machine according to claim 6, characterized in that, The outer side of the housing is provided with a retaining position. The unlocking member is linked with the locking part. The unlocking member is spaced apart from the retaining position. The unlocking member can be operably moved toward the retaining position to drive the locking part to move.

10. The beverage machine according to claim 9, characterized in that, The outer side of the housing is provided with a protrusion, and the unlocking member and the retaining position are respectively provided on both sides of the protrusion; a connecting rod is provided between the unlocking member and the locking part, the unlocking member moves toward the retaining position to at least partially embed itself in the protrusion, and the connecting rod drives the locking part as the unlocking member moves.

11. The beverage machine according to claim 5, characterized in that, The main frame is also provided with a drive mechanism, which includes a drive shaft with a keyway; the outer shell is provided with a transmission connection hole with a toothed protrusion inside, and the transmission connection hole and the drive shaft are drivenly connected through the toothed protrusion and the keyway.

12. The beverage machine according to claim 11, characterized in that, When the brewing base is installed in the installation space, the protruding teeth and the keyway correspond in the circumferential position along the drive shaft to achieve power transmission; when the brewing base is disassembled, the brewing cylinder is in the first position, and the protruding teeth and the keyway correspond in the circumferential position along the drive shaft to allow the brewing base to be installed into the installation space along the axial direction of the drive shaft. The brewing cylinder is offset from the first position, and the protrusions and keyways are offset circumferentially along the drive shaft to restrict the brewing base from being installed into the installation space along the axial direction of the drive shaft.

13. The beverage machine according to claim 2, characterized in that, The brewing cylinder has an opening, the edge of which protrudes outward along the radial direction of the brewing cylinder. The outer wall of the brewing cylinder is provided with a guide post. The cavity wall of the receiving chamber is provided with an arc-shaped guide groove and an arc-shaped guide plate. The arc-shaped guide plate is located above the arc-shaped guide groove. The guide post is inserted into the arc-shaped guide groove. The edge of the opening abuts against the arc-shaped guide plate. The brewing cylinder rotates along the path defined by the arc-shaped guide groove and the arc-shaped guide plate.

14. The beverage machine according to claim 13, characterized in that, The brewing cylinder rotates relative to the outer casing between a first position and a second position. In the first position, the axis of the brewing cylinder is vertical; in the second position, the axis of the brewing cylinder is coaxial with the brewing head. The outer casing includes a top plate and a protrusion, which are arranged sequentially along the rotation path of the brewing cylinder from the first position to the second position. The protrusion extends toward the brewing head, and the arc-shaped guide plate is formed by extending from the top plate toward the inner side of the protrusion.

15. A brewing base, comprising a housing, a brewing cylinder, and a lower piston, wherein the housing defines a receiving cavity, the brewing cylinder is movably disposed within the receiving cavity, and the lower piston is placed within the brewing cylinder and is movable relative to the brewing cylinder, characterized in that... The brewing cylinder can be switched between a first position and a second position relative to the outer shell. The brewing base is provided with a self-locking mechanism, which is used to lock the brewing cylinder in the first position.

16. The brewing base according to claim 15, characterized in that, The self-locking mechanism includes a locking hook, and the brewing cylinder rotates relative to the outer casing between a first position and a second position. The locking hook restricts the brewing cylinder from rotating from the first position to the second position. Under the action of an external force, the restriction of the locking hook on the brewing cylinder can be released.

17. The brewing base according to claim 16, characterized in that, The brewing base is provided with a transmission connection hole, and the transmission connection hole is provided with protruding teeth. The number of protruding teeth is an odd number greater than 1, and the protruding teeth are circumferentially arranged at equal intervals on the inner wall of the transmission connection hole.

18. The brewing base according to claim 16, characterized in that, The self-locking mechanism includes a locking rod and a first elastic element. The locking rod and the first elastic element are disposed in the receiving cavity. The brewing base is provided with a locking block. The locking block is fixed relative to the brewing cylinder. The locking hook is disposed at one end of the locking rod. The locking hook is engaged with the locking block to restrict the brewing cylinder from switching from the first position to the second position relative to the brewing base. The first elastic element presses against the locking rod to keep the locking hook engaged with the locking block.

19. The brewing base according to claim 18, characterized in that, The receiving cavity is provided with a guide cylinder, and the first elastic element is disposed in the guide cylinder and presses against the other end of the locking rod; or, the first elastic element is disposed at the pivot position of the locking rod; under the action of external force, the locking block can be separated from the locking hook.

20. The brewing base according to claim 16, characterized in that, The brewing tank has a slag guide plate that extends downward at an angle from one side of the brewing tank. The slag guide plate serves as a point of application of external force to pull the brewing tank.

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