Multifunctional coffee machine

Abstract

The invention relates to a multifunctional coffee machine, and belongs to the technical field of household appliances, the multifunctional coffee machine comprises a main body part and a machine head part, the main body part is connected with the machine head part through a first hinge structure, so that the machine head part can rotate relative to the main body part so as to be switched between an unfolded state and a folded state, and the machine head part is detachably connected with a brewing head. The brewing heads comprise a first brewing head used for containing coffee powder and a second brewing head used for containing coffee capsules. According to the multifunctional coffee machine, the problems that a coffee machine is inconvenient to store and single in function can be solved, and compact storage and multi-mode brewing are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a multifunctional coffee machine. BACKGROUND

[0002] Coffee machines have become common electrical appliances in modern families and offices, but as living space is becoming more compact, users have higher requirements for the storage performance and functional diversity of coffee machines. Traditional coffee machines usually have a fixed outer shape structure, and components such as machine heads and brewing units are in fixed positions, resulting in a large overall volume and irregularity, occupying a large amount of countertop space when not in use, and being inconvenient to carry. In addition, existing coffee machines have single functions, either supporting only coffee powder brewing or being compatible with only specific capsule systems, which cannot meet the diversified needs of users.

[0003] Therefore, there is an urgent need in the art for a solution that can achieve quick storage and functional expansion without sacrificing the core functions of the coffee machine. SUMMARY

[0004] In order to overcome the defects of the prior art, the present application provides a multifunctional coffee machine, which can solve the problems of inconvenient storage and single function of the coffee machine and achieve compact storage and multi-mode brewing.

[0005] To achieve this purpose, the present application adopts the following technical solutions: The multifunctional coffee machine provided by the present application comprises a main body part and a machine head part, the main body part and the machine head part are connected through a first hinge structure, so that the machine head part can rotate relative to the main body part, thereby switching between an unfolded state and a storage state, and a brewing head is detachably connected to the machine head part, the brewing head is at least two, including a first brewing head for accommodating coffee powder and a second brewing head for accommodating coffee capsules.

[0006] The preferred technical solution of the present application is that a water storage part is arranged on the main body part; in the storage state, the brewing head is configured to be detachable from the machine head part and placed in the water storage part, and the machine head part after detaching the brewing head is rotated to the position close to the main body part through the first hinge structure.

[0007] The preferred technical solution of the present application is that it further comprises a cup, in the storage state, the cup is configured to be placed in the water storage part, and the brewing head is configured to be detachable and placed in the cup.

[0008] The preferred technical solution of the present application is that a cup pad is arranged below the machine head part, one end of the cup pad is connected to the bottom of the main body part through a second hinge structure, and a cup pad containing area for containing the cup pad is arranged on the main body part; the cup pad can be rotated around the second hinge structure to the position stored in the cup pad containing area.

[0009] The preferred technical scheme of the present application is that the connection mode of the brewing head and the machine head part is clamping fitting.

[0010] The preferred technical scheme of the present application is that the brewing head comprises a separable upper part and a lower part, the upper part is provided with a water inlet structure, and the lower part is provided with a water outlet structure; the upper part and the lower part are fixed by a threaded connection mode.

[0011] The preferred technical scheme of the present application is that the first brewing head is internally formed with a powder groove, the bottom of the powder groove is provided with a plurality of water outlet holes; the second brewing head is internally formed with a capsule chamber for accommodating a capsule, the bottom of the capsule chamber is provided with a liquid outlet hole, and the top of the capsule chamber is provided with a piercing part for piercing the capsule.

[0012] The preferred technical scheme of the present application is that the piercing part is in a hollow through structure, and the water inlet structure is located at the piercing part; a sealing ring is arranged at the piercing part, for forming a sealing barrier during brewing.

[0013] The preferred technical scheme of the present application is that in the unfolded state, a magnet adsorption structure is arranged between the machine head part and the main body part, for stabilizing the position of the machine head part, and the magnet adsorption structure comprises a magnet assembly and a magnetic guide assembly embedded in the housings of the machine head part and the main body part.

[0014] The preferred technical scheme of the present application is that the main body part is in a cuboid shape, and / or the machine head part in the storage state is in a cuboid shape; a protective cover that can be opened and closed is arranged on the water storage part, and a cover lug is arranged on the protective cover.

[0015] The beneficial effects of the present application are: Creative space compression: through hinged folding and accessory nesting, the coffee machine is converted from a three-dimensional irregular shape to a regular shape, and the storage volume is greatly reduced, facilitating storage and carrying.

[0016] Multifunctional integration: the replaceable accessory design supports coffee powder and capsule brewing, meets diversified needs, and does not need to purchase multiple devices.

[0017] Convenient operation: the clamping fitting and magnetic attraction fixing designs make the accessory replacement and folding operation intuitive and labor-saving, improving the user experience.

[0018] Economical and efficient: the modular design reduces production costs, and the regular shape reduces logistics costs. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 Figure 1 is a perspective view of the multifunctional coffee machine of the first embodiment of the present application in a use state with the first brewing head installed; Figure 2 Figure 2 is a perspective view of the multifunctional coffee machine of the first embodiment of the present application in a use state with the second brewing head installed; Figure 3 Figure 3 is an exploded view of the multifunctional coffee machine of the first embodiment of the present application in a use state; Figure 4 Figure 4 is a perspective view of the multifunctional coffee machine of the first embodiment of the present application in a storage state; Figure 5 Figure 5 is an exploded view of the multifunctional coffee machine of the first embodiment of the present application in a storage state; Figure 6 Figure 6 is a perspective view of the first brewing head of the first embodiment of the present application; Figure 7 Figure 7 is an exploded view of the first brewing head of the first embodiment of the present application; Figure 8 Figure 8 is a perspective view of the second brewing head of the first embodiment of the present application; Figure 9 Figure 9 is an exploded view of the second brewing head of the first embodiment of the present application in a first capsule compartment structure; Figure 10 Figure 10 is an exploded view of the second brewing head of the first embodiment of the present application in a second capsule compartment structure.

[0021] In the drawings: 1 - main body; 11 - water storage part; 12 - cup pad accommodating area; 13 - protective cover; 131 - cover lug; 2 - machine head; 3 - first hinge structure; 4A - first brewing head; 4B - second brewing head; 41 - upper part; 42 - lower part; 43 - powder groove; 44 - water outlet hole; 45 - capsule compartment; 46 - liquid outlet hole; 47 - piercing part; 48 - sealing ring; 49 - piercing kit; 5 - cup; 6 - cup pad; 7 - second hinge structure; 81 - first capsule; 82 - second capsule. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be further described below in conjunction with the drawings and through specific embodiments.

[0023] Embodiment One A multifunctional coffee machine provided in this embodiment, like Figures 1-10As shown, it includes a main body 1 and a head 2, which are connected by a first hinge structure 3, allowing the head 2 to rotate relative to the main body 1, thus switching between an unfolded and retracted state. A brewing head is detachably connected to the head 2, and there are at least two types of brewing heads: a first brewing head 4A for holding coffee powder and a second brewing head 4B for holding coffee capsules. This technical solution effectively addresses the common needs of coffee machines in terms of portability and diverse brewing modes through structural innovation and functional integration. Its core lies in the introduction of "hinged folding" to achieve form transformation and "detachable multi-functional brewing heads" to adapt to different beverages, thereby constructing a highly integrated and flexible system at the hardware level. Specifically, this solution addresses the above problems collaboratively in the following ways: Regarding compact storage, the key lies in the setting of the "first hinge structure" (referring to a mechanical connection component that allows the head to rotate relative to the main body in one or more axes, such as a damped hinge or pivot mechanism). This structure allows the machine head to rotate relative to the main body, switching between an "expanded state" (working mode, with all components in operation) and a "folded state" (storage mode, with the overall volume minimized). In the folded state, the machine head can rotate and fit snugly against the main body, significantly reducing the coffee machine's spatial projection in the vertical or depth directions, resulting in a more regular profile that is easy to package, carry, and store. Furthermore, the "detachable brewing head" (the core component for coffee extraction, typically containing a brewing chamber) on the machine head further supports optimal space utilization. This brewing head can be removed from the machine head, allowing for tighter stacking or integration into a pre-reserved cavity in the main body during storage. Regarding multi-functional brewing, the solution overcomes functional limitations by providing at least two detachable brewing heads connected to the machine head, specifically including a "first brewing head for holding coffee grounds" (which typically has a portafilter or similar structure for holding and extracting coffee grounds) and a "second brewing head for holding coffee capsules" (which has a chamber adapted to specific capsule sizes and a puncture device). Users can quickly change the brewing head according to their beverage needs (such as freshly ground coffee or pre-packaged capsule coffee). This modular design means that a single coffee machine body can adapt to various coffee ingredients and brewing protocols, achieving a leap from single function to "multi-mode brewing". Partial implementation methods also include using quick-release clips, magnetic closures, or threads at the connection interface between the brewing head and the machine head for "detachable connection", ensuring a secure connection, good sealing, and convenient switching. In summary, this solution, through the form transformation achieved by the first hinge structure and the functional modularity brought by the replaceable brewing head, organically combines storage optimization with functional expansion. When not in use, the coffee machine has a compact form for easy storage, while during use, it can flexibly meet different brewing needs by changing core components, effectively solving the contradiction between portability and functionality that traditional equipment struggles to achieve. Preferably, the main body 1 is provided with a water storage part 11; in the storage state, the brewing head is configured to be detached from the machine head 2 and placed in the water storage part 11, and the machine head 2 after detaching the brewing head is rotated to the position close to the main body 1 through the first hinge structure 3. In the technical solution, the main body is provided with a water storage part, in the storage state, the brewing head can be detached from the machine head and placed in the water storage part, and the machine head after detaching the brewing head is rotated to the position close to the main body through the first hinge structure. The design as a further preferred scheme is because of the creative combination of "functional component reuse" and "space nesting", which realizes the extreme optimization of the storage form of the coffee machine. The scheme converts the water storage part into a storage space in the non-working state, and the brewing head is quickly detached from the machine head through the quick-release structure (such as a buckle or knob mechanism) and accurately placed in the cavity of the water storage part. At the same time, the first hinge structure (such as a hinge mechanism with damping) allows the machine head to rotate around the axis, so that the machine head after detaching the brewing head can be folded flat and closely attached to the main body. The technical effect of this design is remarkable: first, it solves the problem that irregular components such as brewing heads are easy to protrude when stored, resulting in irregular overall shape. By embedding the brewing head in the water storage part, "component placement" is achieved, eliminating additional space occupation, so that the stored coffee machine presents a compact profile similar to a rectangular prism, greatly reducing the volume and greatly improving the storage and carrying convenience; second, the scheme utilizes the inherent cavity volume of the water storage part, realizing the multifunctionality of a single structure, avoiding the complexity and cost of additional storage components, and embodying high integration; finally, the folded machine head is stably attached through the hinge structure, combined with the containment of the water storage part, ensuring the shock and collision prevention of the components during transportation, enhancing the durability. Overall, this scheme achieves a balance between space efficiency and functional utility with simple means.

[0024] Preferably, the cup 5 is also included, which in the storage state is configured to be placed in the water storage part 11, and the brewing head is configured to be detached and placed in the cup 5. This scheme further introduces a cup on the basis of the water storage part storage. In the storage state, the cup can be placed in the water storage part, and the brewing head can be detached and placed in the cup. The reason for this design as a preferred scheme is that it improves the utilization rate of the storage space to a new level through the "multiple nesting" logic. The cup (referring to the container for drinking coffee) is usually designed in a standard size and can be completely accommodated in the cavity of the water storage part. The brewing head is embedded in the cup through its optimized shape (such as a cylindrical structure), forming a three-layer nested sequence of "brewing head → cup → water storage part". This process does not require tools, and the user only needs to place them in order to complete. This nested structure first realizes the multiplication effect of space compression, combining the volumes of multiple independent components to minimize the overall thickness of the storage. Secondly, the cup acts as a protective shell for the brewing head, reducing friction and collision between components through physical isolation, reducing the risk of wear and tear, especially suitable for outdoor carrying scenarios. In addition, this design strengthens the order of the storage, and each component has a specific position, avoiding the confusion and loss problems of traditional separate storage, and improving the user experience.

[0025] Preferably, a cup mat 6 is arranged below the head part 2, one end of the cup mat 6 is connected to the bottom of the main body part 1 through a second hinge structure 7, and the main body part 1 is provided with a cup mat accommodating area 12 for accommodating the cup mat 6; the cup mat 6 can be rotated around the second hinge structure 7 to a position stored in the cup mat accommodating area 12. This scheme is a special optimization for the bottom space of the coffee machine, and the reason for its selection as a preferred scheme is that it solves the "bottom protrusion" problem that has not been paid attention to before, and realizes the complete regularization of the storage form. Specifically, this scheme arranges a "cup mat" (a platform for placing a cup to receive the dripping liquid) below the "head part", one end of the cup mat is connected to the bottom of the "main body part" through the "second hinge structure", and the "main body part" is specially shaped with a matching "cup mat accommodating area" (a recessed cavity). When operating, the cup mat can be tightly embedded in the groove by simply turning it up. The core technical effect brought by this ingenious design is to completely eliminate the suspended protrusion of the cup mat at the bottom of the coffee machine in the working state, so that the bottom of the product is completely flush with the bottom surface of the main body part after storage, forming a complete and obstacle-free plane. This improvement not only makes the product more stable when placed on the table, but more importantly, it allows the coffee machine to be stacked smoothly in the packaging box and to closely fit other items in the cabinet, greatly improving its space adaptability and stacking stability during storage and transportation. Preferably, the cup mat 6 and the main body part 1 are magnetically matched, and the cup mat and the main body are in a magnetically attracted state when they are stored. The user only needs to exert a pulling force sufficient to overcome the magnetic force to unfold the cup mat.

[0026] Preferably, the connection between the brewing head and the machine head 2 is a snap-fit. The snap-fit (i.e. the connection by means of the mutual engagement of elements such as grooves, bosses or claws) is usually provided at the interface between the brewing head and the machine head, and the user can lock or unlock it by means of a rotation or pressing action. Firstly, this connection ensures the stability of the brewing head in the high-pressure extraction environment (the pressure can reach 15-20 Bar), preventing loosening and leakage, and ensuring the quality of the coffee. Secondly, it simplifies the replacement process of the accessory, shortening the operation time to a few seconds, and improving the practicality of multi-mode brewing.

[0027] Preferably, the brewing head comprises a separable upper part 41 and a lower part 42, the upper part 41 is provided with a water inlet structure, and the lower part 42 is provided with a water outlet structure; the upper part 41 and the lower part 42 are fixed by means of a threaded connection. The core of this preferred scheme is to design the brewing head itself as a separable modular assembly, i.e. to divide it into a detachably connected upper part and a lower part, wherein the upper part is provided with a water inlet structure communicating with the machine head pipeline, and the lower part is provided with a coffee liquid outlet structure. The primary advantage is the ultimate convenience of cleaning and maintenance: after brewing, the user does not need to take down the entire accessory from the machine head and then perform tedious internal cleaning, but only needs to simply separate the lower part from the upper part, and then directly clean the lower part cavity containing the coffee powder or coffee capsule, and the water inlet channel of the upper part can also be cleaned separately, thus fundamentally solving the problem of cleaning residual coffee residue, greatly improving the hygiene level and user experience.

[0028] Preferably, a powder slot 43 is formed inside the first brewing head 4A, and a plurality of water outlets 44 are arranged on the bottom of the powder slot 43; a capsule slot 45 is formed inside the second brewing head 4B for accommodating a capsule, and a liquid outlet 46 is arranged on the bottom of the capsule slot 45, and a piercing part 47 for piercing the capsule is arranged on the top of the capsule slot 45. The present scheme optimizes the internal structure of the first brewing head for accommodating coffee powder, and specifically defines that a powder slot for accommodating coffee powder is formed inside, and a plurality of water outlets are arranged on the bottom of the powder slot. The powder slot is a regular-shaped (usually cylindrical or slightly tapered) cavity, which provides a controlled filling and extraction space for the quantitative coffee powder. The plurality of water outlets arranged on the bottom of the powder slot are of great importance. The core function of these water outlets (usually cooperating with a filter screen or filter plate) is to achieve uniform outflow and filtration of coffee liquid after extraction. The effects are as follows: first, the plurality of small holes are uniformly distributed on the bottom of the powder slot, which ensures that the coffee liquid extracted by high-pressure hot water can flow out uniformly from the bottom plane of the entire coffee powder cake, avoiding the channeling effect (i.e. hot water preferentially passes through the path with small resistance, causing some coffee powder to be over-extracted and some to be under-extracted) caused by concentrated water outlets, thereby ensuring the uniformity and consistency of coffee extraction, which is of decisive significance for improving the taste and quality of the final coffee beverage. Secondly, these small holes play a key filtering role, allowing liquid to pass through while effectively blocking fine coffee powder particles from entering the coffee liquid, ensuring the clarity of the coffee liquid. Compared with a single large outlet or a simple slit outlet, the multi-hole design performs better in extraction uniformity, filtration effect, and prevention of powder residue leakage, and is a key structural feature for achieving high-quality espresso coffee brewing.

[0029] Meanwhile, the core functional structure of the second brewing head (capsule brewing accessory) is clearly and optimally defined, i.e. a capsule compartment is formed inside for accommodating and positioning the coffee capsule, and a liquid outlet hole is provided at the bottom of the capsule compartment, and a piercing part for piercing the capsule is provided at the top. This structural layout constitutes the classic and efficient working paradigm of the capsule brewing system, and its preference lies in the realization of the complete and reliable process of capsule brewing. The role of the capsule compartment is to serve as an accurate positioning and accommodating cavity, which is shaped to fit the capsule shape, ensuring that the capsule remains stable during brewing and does not move or tilt. The liquid outlet hole provided at the bottom of the capsule compartment allows the coffee liquid to flow out smoothly after the capsule is pierced. Usually, the bottom is also provided with a piercing device (such as multiple spikes) for piercing the bottom seal of the capsule to allow the coffee liquid to flow out. The piercing part located at the top of the capsule compartment is the key of the present application, which functions to pierce the top seal of the capsule by mechanical force (such as by pressing down the head or closing the accessory) at the beginning of brewing. This "top piercing, bottom liquid outlet" structural design ensures that high-pressure hot water can be injected from the top of the capsule, uniformly penetrating the coffee powder layer inside the capsule, and after full extraction, the coffee liquid flows out from the bottom hole pierced. This one-way, top-down flow path simulates the extraction principle of a professional coffee machine, which is conducive to forming a uniform extraction pressure field, avoiding short circuit or uneven extraction, thereby ensuring the full and balanced extraction of coffee flavor substances, and finally obtaining stable quality coffee beverage. In addition, the piercing part is integrated at the top of the capsule compartment (usually part of the upper part of the accessory), which is compact in structure and direct and reliable in action.

[0030] Preferably, the lower part 42 of the second brewing head is at least two, including a first capsule cartridge structure for accommodating the first capsule and a second capsule cartridge structure for accommodating the second capsule. Based on the separable design of the upper and lower parts of the second brewing head (i.e. the capsule brewing assembly), the preferred solution further applies the modular concept to the lower part itself, limiting the lower part to at least two different types, specifically including a first capsule cartridge structure for accommodating the first type of capsule (such as the capsule of brand A), and a second capsule cartridge structure for accommodating the second type of capsule (such as the capsule of brand B). The preferred design of this design greatly expands the compatibility of a single coffee machine for a variety of capsule products, solving the problem of the non-uniformity of capsule standards in the market, which brings trouble to users. The technical means of realization is to design lower parts (capsule cartridges) with different internal geometric shapes, sizes, and even internal piercing mechanisms. Each capsule cartridge structure is precisely adapted to the shape and size of a specific type of capsule to ensure that the capsule can be positioned and fixed. For example, the first capsule cartridge structure has an internal profile matching the diameter and height of the first capsule 81 (such as the DG capsule), and the bottom of the capsule cartridge of the DG capsule has only a single large liquid outlet hole; the second capsule cartridge structure is specially designed for the characteristics of the second capsule 82 (such as the NES capsule), including a piercing kit 49 for fixing and adapting to the size of the NES capsule, and the bottom of the capsule cartridge is provided with dozens of block-shaped protruding structures for piercing the top film of the NES capsule and dozens of small liquid outlet holes. The user only needs to select the corresponding capsule cartridge lower part according to the type of the capsule used, and assemble it with the universal upper part (which usually includes the water inlet pipeline and the upper piercing device) to be installed on the coffee machine. It makes a coffee machine break through the limitation of a single capsule system, and can be compatible with capsules of different brands or specifications, providing users with unprecedented freedom of choice and use flexibility, significantly improving the market appeal and competitiveness of the product. From the perspective of production and cost, although multiple lower part molds need to be developed, the complex structure of the upper part and the interface with the head can be standardized and unified, avoiding the huge cost of developing an entire brewing assembly for each capsule system, achieving a balance between scale economy and diversity.

[0031] Preferably, the piercing part 47 is in a hollow through structure, and the water inlet structure is located at the piercing part 47; a sealing ring 48 is arranged at the piercing part 47, for forming a sealing barrier during brewing. The preferred scheme optimizes the functional integration of the piercing part structure of the top of the second brewing head, limits the piercing part to be in a hollow through structure, and directly sets the water inlet structure at the piercing part. This means that the piercing part is no longer a solid pure piercing needle, but a hollow tubular structure with a channel inside, or a similar intermediate aperture, surrounded by a sharp structure. The hollow channel constitutes the entrance of hot water into the capsule. The preference of this design lies in the high integration and path optimization of the piercing and water inlet functions, which greatly improves the brewing efficiency and reliability. The working process is: when the piercing part pierces the capsule top cover, the tip of the piercing part has already penetrated into the capsule interior, at this time, the high-pressure hot water delivered from the head directly enters the capsule cavity through the hollow channel of the piercing part, from the opening at the top end or the hole on the side. First, it realizes the shortest water inlet path, and the hot water can directly enter the capsule almost at the same time as the piercing action is completed, reducing the invalid pipe volume, which is beneficial to quickly establish the extraction pressure, improves the response speed and water temperature stability. Secondly, since the water inlet is located at the end of the piercing part, that is, deep into the capsule interior, the hot water can uniformly infiltrate from the center area of the capsule bin, avoiding the uneven extraction caused by the seepage from the top space of the capsule bin to the center, further guaranteeing the extraction quality of the coffee. This scheme avoids the problem that the water flow needs to bypass the solid piercing part or pass through a complex flow channel to enter the capsule, and the water flow path is more direct and smooth, and the pressure loss is smaller. Specifically, the tubular intermediate aperture structure is adopted for the first capsule in this embodiment, and the intermediate aperture structure surrounded by a sharp structure is adopted for the second capsule.

[0032] Meanwhile, a sealing ring is provided at the piercing portion. The sealing ring is usually made of a food-grade material with good elasticity (such as silicone) and is installed in a manner of surrounding the root of the piercing portion, for example, embedded in a special annular groove on the outer periphery of the piercing portion. When the capsule is loaded into the capsule chamber and pushed upward with the accessory closed or locked, the top cover film of the capsule is first pierced by the tip of the piercing portion, and then the upper surface of the capsule will tightly fit and compress the sealing ring at the root of the piercing portion. The elastic sealing ring deforms after being compressed, thereby forming a circumferential and continuous effective seal between the outer periphery of the piercing portion and the edge of the hole pierced by the capsule. This sealing structure ensures the absolute airtightness of the high-pressure hot water injection path, forcing all the injected hot water (through the hollow channel of the piercing portion) to completely enter the capsule interior and penetrate out from the bottom, effectively preventing the hot water from leaking from the periphery of the piercing point (i.e., "channeling"). This ensures that the extraction pressure can be quickly and stably established, which is a prerequisite for achieving uniform and sufficient extraction and obtaining high-quality coffee. Without this seal, the pressure would be severely lost, leading to insufficient extraction and weak flavor. Secondly, the elastic sealing ring has a certain tolerance compensation ability, which can adapt to the slight differences in cover film thickness and material hardness of different brands of capsules, as well as the slight positioning deviations of the capsules in the chamber, thereby enhancing the adaptability and universality of the accessory to various capsules. Therefore, the seemingly simple design of providing a sealing ring at the piercing portion solves the key problems of reliability, safety, and compatibility of the capsule brewing system at a very low cost and simple structure.

[0033] Preferably, in the unfolded state, a magnet adsorption structure is provided between the head part 2 and the main body part 1 for stabilizing the position of the head part 2, which comprises a magnet assembly and a magnetic guide assembly embedded in the shell of the corresponding regions of the head part 2 and the main body part 1 that are close to or in contact with each other in the unfolded state. Specifically, the implementation means of this preferred scheme involves embedding the magnet assembly (such as a permanent magnet) and the magnetic guide assembly (such as a ferromagnetic metal sheet) in the shell of the corresponding regions of the head part and the main body part that are close to or in contact with each other in the unfolded state, respectively, to achieve automatic adsorption and fixation through magnetic interaction. This magnet adsorption structure (referring to the connection method that uses the attractive force between magnets to fix components) works when the user rotates the head part around the first hinge structure to the unfolded position and approaches the predetermined angle, the magnetic force will automatically guide the head part to accurately position and make it tightly fit with the main body part, forming a stable connection. In the unfolded state, the magnet adsorption structure provides a continuous and stable holding force for the head part, effectively preventing displacement or shaking of the head part due to machine vibration or accidental touch during coffee preparation, thereby ensuring the stability and consistency of the brewing process, which is crucial for maintaining the quality of coffee extraction. Secondly, compared with traditional mechanical latches or friction fixation methods, magnetic adsorption fixation realizes nearly silent "place and fix" operation, simplifies user operation steps, and improves the convenience and pleasure of use; when it needs to be folded, the user only needs to exert a pulling force sufficient to overcome the magnetic force to release the fixation, which is intuitive and labor-saving, and avoids complex unlocking actions. Furthermore, the magnet adsorption structure is a non-contact "soft connection", which avoids the physical wear, fatigue fracture or jamming risk of mechanical clasp mechanisms in the repeated locking and unlocking process, has higher durability and long-term reliability. In addition, since the magnet assembly can be completely embedded in the shell, there is no need to open obvious lock holes or protruding mechanisms on the appearance, so that the coffee machine can maintain the integrity and simple beauty of the appearance in the unfolded state.

[0034] Preferably, the main body 1 is in the shape of a cuboid, and / or the head 2 is in the shape of a cuboid in the storage state; the water storage part 11 is provided with an openable protective cover 13, and the protective cover 13 is provided with cover ears 131. This scheme is a top-level design optimization from the macro-morphological level to maximize space utilization. The regular cuboid shape maximizes the reduction of invalid space generated when the product is packaged, stacked and stored. Whether it is put into a luggage, a packaging box or a cabinet, the cuboid can be most closely fitted with the right-angle boundary of the storage space, avoiding the space waste caused by irregular shapes. This makes the final packaging size of the product as small as possible, directly reducing the logistics transportation cost, and at the same time saving the valuable storage space for consumers. At the same time, the protective cover can effectively prevent dust and foreign matter from falling into the water storage part and the brewing head, cup and other components placed therein during storage and transportation, ensuring the cleanliness when used again. Secondly, it gives the product a visual integrity and completeness in the storage state, hides all the built-in components, and makes the product look like a complete box, more simple and beautiful. Finally, it can also limit the activity space of the built-in components to some extent, play the role of auxiliary fixation, and further enhance the reliability of storage. The cover ear, a small component, provides a clear force point and accommodation space for the user's operating finger, so that the action of opening the protective cover changes from the laborious and unsightly way of picking the edge to the smooth and labor-saving natural action of hooking or pinching the cover ear with the finger, which greatly improves the convenience and quality of the product operation.

[0035] The present application is described by preferred embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present application. The present application is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of the present application are within the scope of the present application.

Claims

1. A multifunctional coffee machine, characterized in that: comprising a main body (1) and a head part (2), the main body (1) and the head part (2) are connected through a first hinge structure (3), so that the head part (2) can rotate relative to the main body (1), thereby switching between an unfolded state and a storage state; the head part (2) is detachably connected with a brewing head, the brewing head is at least two kinds, including a first brewing head (4A) for containing coffee powder and a second brewing head (4B) for containing coffee capsules. 2.The multifunctional coffee machine according to claim 1, characterized in that: the main body (1) is provided with a water storage part (11); in the storage state, the brewing head is configured to be detachable from the head part (2) and placed in the water storage part (11), and the head part (2) after detaching the brewing head is rotated to the position close to the main body (1) through the first hinge structure (3). 3.The multifunctional coffee machine according to claim 2, characterized in that: further comprising a cup (5), in the storage state, the cup (5) is configured to be placed in the water storage part (11), and the brewing head is configured to be detachable and placed in the cup (5). 4.The multifunctional coffee machine according to claim 1, characterized in that: a cup pad (6) is arranged below the head part (2), one end of the cup pad (6) is connected with the bottom of the main body (1) through a second hinge structure (7), the main body (1) is provided with a cup pad containing area (12) for containing the cup pad (6); the cup pad (6) can rotate around the second hinge structure (7) to the position stored in the cup pad containing area (12). 5.The multifunctional coffee machine according to claim 1, characterized in that: the connection mode of the brewing head and the head part (2) is clamping fit. 6.The multifunctional coffee machine according to claim 1, characterized in that: the brewing head comprises separable upper part (41) and lower part (42), the upper part (41) is provided with water inlet structure, the lower part (42) is provided with water outlet structure; the upper part (41) and the lower part (42) are fixed by thread connection mode. 7.The multifunctional coffee machine according to claim 6, characterized in that: the first brewing head (4A) is internally formed with a powder groove (43), the bottom of the powder groove (43) is provided with a plurality of water outlet holes (44); the second brewing head (4B) is internally formed with a capsule warehouse (45) for containing capsules, the bottom of the capsule warehouse (45) is provided with a liquid outlet hole (46), and the top of the capsule warehouse (45) is provided with a piercing part (47) for piercing the capsule. 8.The multifunctional coffee machine according to claim 7, characterized in that: the piercing part (47) is a hollow through structure, and the water inlet structure is located at the piercing part (47); the piercing part (47) is provided with a sealing ring (48) for forming a sealing barrier during brewing. 9.The multifunctional coffee machine according to claim 1, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ In the unfolded state, a magnet adsorption structure is arranged between the head part (2) and the main body part (1) for stabilizing the position of the head part (2), and the magnet adsorption structure comprises a magnet assembly and a magnet guide assembly embedded in the housings of the head part (2) and the main body part (1).

10. The multi-functional coffee machine according to claim 1, characterized in that: The main body part (1) is in the shape of a cuboid, and / or the head part (2) in the storage state is in the shape of a cuboid; a cover (13) is arranged on the water storage part (11) and can be opened and closed, and a cover lug (131) is arranged on the cover (13).

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