Extraction structure for coffee machine

Abstract

The utility model discloses an extraction structure for a coffee machine, which comprises an extraction assembly, the extraction assembly comprises an extraction disc body with a fluid channel, an elastic sealing disc assembly arranged in the extraction disc body and a disc body fixing piece used for fixing the extraction disc body, and the extraction disc body is provided with a concave part used for fitting a coffee bag. The resilient seal disc assembly is resiliently disposed within the recess. The coffee machine is reasonable in structural design, the extraction assembly comprises the extraction disc body, the elastic sealing disc assembly and the disc body fixing piece, accurate fluid guiding is achieved, sealing performance and coffee bag positioning are enhanced, and installation stability is guaranteed. The elastic sealing disc assembly comprises a bag removing pad, a sealing disc handle and an elastic piece, the problem of adhesion of coffee bags is solved, cleaning convenience is improved, and the sealing effect is enhanced by means of the elastic piece.

Description

An extraction structure for a coffee machine Technical Field

[0001] This utility model relates to the field of beverage brewing devices, and more particularly to an extraction structure for coffee machines. Background Technology

[0002] In the field of beverage brewing equipment, horizontal brewing coffee machines are widely used. They mainly consist of a fixed extraction component and a moving extraction component. The fixed extraction component is fixed to the front of the machine base, while the moving extraction component is located at the rear of the machine base and can slide back and forth relative to the former. When the two come into contact, they form a sealed extraction chamber. The coffee bag cavity is located on the fixed extraction component, and the moving extraction component is a movable plate.

[0003] The sealing effect of the two extraction components after they are joined is a key indicator of a coffee machine's quality. Currently, most plate-type extraction components have a fixed structure, forming a rigid contact when joined, relying on a drive structure to achieve a seal. This method places extremely high demands on the precision of the extraction components, the accuracy of stroke control, and the self-locking force of the drive structure. Furthermore, during coffee extraction, if the locking force is insufficient, gaps can easily form on the sealing surface due to the high pressure of hot water, leading to leakage. This not only affects the quality of coffee extraction but may also damage coffee machine parts, increase costs, and reduce product competitiveness.

[0004] Furthermore, in existing coffee machines, after coffee extraction, the coffee bag tends to stick to the extraction mechanism, making it inconvenient to remove and clean. Each time the machine is cleaned, users may need to spend considerable time and effort separating the coffee bag, and improper handling may even damage the extraction mechanism, affecting the subsequent use of the coffee machine. Summary of the Invention

[0005] The technical problem to be solved by this invention is to provide an extraction structure for a coffee machine, addressing the current state of the technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an extraction structure for a coffee machine, including an extraction component, characterized in that: the extraction component includes an extraction disc body with a fluid channel, an elastic sealing disc assembly disposed in the extraction disc body, and a disc body fixing member for fixing the extraction disc body, wherein the extraction disc body is provided with a recessed portion for coffee bag fitting, and the elastic sealing disc assembly is elastically arranged in the recessed portion.

[0007] The aforementioned components achieve the following effects: By incorporating an extraction assembly including an extraction disc with a fluid channel, an elastic sealing disc assembly, and a disc holder, and with a recessed portion on the extraction disc for coffee bag fit, the elastic sealing disc assembly is flexibly positioned within this recess. This allows the extraction disc to precisely guide the fluid, providing a suitable channel for coffee extraction; the elastic arrangement of the sealing disc assembly better adapts to the shape of the coffee bag, enhancing sealing and effectively preventing coffee leakage during extraction, thus improving extraction efficiency; the recessed portion facilitates the positioning and fit of the coffee bag, keeping it stable during extraction and improving extraction uniformity. Simultaneously, the disc holder ensures the overall stability of the extraction disc assembly, preventing displacement of components during coffee machine operation and guaranteeing smooth extraction.

[0008] Preferably, the elastic sealing disc assembly includes a depacking pad for preventing coffee bags from sticking, a sealing disc, and an elastic element arranged from left to right. A central axis extends along the direction of the extraction disc body on the sealing disc. The extraction disc body has a central through hole arranged opposite to each other along the central axis. The depacking pad is arranged on the sealing disc along the central axis. The elastic element is arranged in the central through hole along the central axis.

[0009] The effects achieved by the aforementioned components are as follows: The elastic sealing disc assembly includes, from left to right, a release pad to prevent coffee bags from sticking, a sealing disc, and an elastic element. A central shaft extends along the direction of the extraction disc, and a central through-hole is arranged opposite to the extraction disc along this central shaft. The release pad is positioned on the sealing disc along the central shaft, and the elastic element is positioned within the central through-hole along the central shaft. The release pad effectively solves the problem of coffee bags easily sticking to the sealing disc after extraction, facilitating coffee bag cleaning and improving the ease of use of the coffee machine. The sealing disc, in conjunction with the elastic element, utilizes the elastic deformation of the element to further enhance the sealing effect, better resisting internal pressure during extraction and preventing coffee leakage. The central shaft and central through-hole not only provide precise positioning for each component, making the entire elastic sealing disc assembly structure more compact, but also facilitate the transmission of force between components, ensuring the stable implementation of the sealing and release functions.

[0010] Preferably, the central shaft has a hollow thread, the unpacking pad is threaded along the central shaft and mounted on the sealing disc, and a threaded limiting element is arranged at the tail end of the central shaft.

[0011] The aforementioned components achieve the following effects: by creating a hollow thread within the central shaft, the unpacking pad is threadedly connected to the sealing disc along the central shaft, with a threaded retaining element at the tail end of the central shaft. The hollow thread on the central shaft reduces the overall weight of the assembly without compromising its structural strength, while providing a convenient connection for the unpacking pad installation. The threaded connection facilitates easy installation and disassembly of the unpacking pad, allowing for replacement after a period of use to maintain a good anti-adhesion effect. The threaded retaining element ensures that the unpacking pad will not loosen due to vibration or other reasons during use, guaranteeing the stability of the connection between the unpacking pad and the sealing disc, thereby ensuring the reliable implementation of the unpacking function.

[0012] Preferably, the central through hole has a limiting part, and the elastic element is sleeved on the central shaft between the sealing disc and the limiting part.

[0013] The aforementioned components achieve the following effects: by creating a limiting part in the central through-hole, the elastic element is fitted onto the central shaft between the sealing disc and the limiting part. The limiting part provides precise positioning for the elastic element, ensuring more accurate installation on the central shaft and uniform force distribution, thereby making the sealing effect of the elastic sealing disc assembly more stable and reliable. Simultaneously, the limiting part, in conjunction with the sealing disc, restricts excessive compression or stretching of the elastic element, extending its service life and ensuring the long-term stable operation of the entire extraction structure.

[0014] Preferably, the sealing disc has a plurality of fluid holes arranged thereon, and at least one of the fluid holes is in communication with a fluid channel.

[0015] The aforementioned components achieve the following effect: by arranging several fluid holes on the sealing disc, with at least one fluid hole communicating with the fluid channel, the multiple fluid holes increase the contact area between the fluid and the coffee bag during coffee extraction, resulting in more complete extraction and better extraction of the effective components in the coffee, thus improving its taste and quality. Simultaneously, the design of communicating with the fluid channel ensures smooth fluid flow between the extraction disc and the sealing disc, providing the necessary fluid circulation conditions for coffee extraction and ensuring the efficient execution of the extraction process.

[0016] Preferably, the extraction disc body has a fluid interface arranged on the opposite side of the sealing disc, and a sealing element is provided in the fluid interface.

[0017] The aforementioned components achieve the following effects: By arranging a fluid interface on the opposite side of the sealing plate along the extraction disc, and installing a seal within the fluid interface, the fluid interface facilitates the connection between the extraction disc and other fluid delivery components of the coffee machine, ensuring smooth fluid flow and a stable supply of fluid required during coffee extraction. The seal effectively prevents leakage at the fluid connection points, ensuring the airtightness of the entire coffee machine's fluid system, improving the machine's operational stability and reliability, and preventing damage to other internal components due to fluid leakage.

[0018] Compared with existing technologies, the advantages of this invention are as follows: By setting the extraction assembly including an extraction disc, an elastic sealing disc assembly, and a disc fixing component, it not only achieves precise fluid guidance, enhances sealing and coffee bag positioning, but also ensures stable installation. The elastic sealing disc assembly includes a bag removal gasket, a sealing disc, and an elastic element, which solves the problem of coffee bag adhesion, improves cleaning convenience, and strengthens the sealing effect with the elastic element. The hollow thread design of the central shaft and related connections and limiting settings facilitate the replacement of the bag removal gasket and ensure its stable connection. The precise positioning of the elastic element by the central through-hole limiting part extends the life of the elastic element and ensures stable sealing effect. Multiple fluid holes on the sealing disc are connected to the fluid channel, improving the fullness and quality of coffee extraction. The fluid interface and internal seals on the extraction disc body achieve smooth fluid connection and supply, prevent leakage, and improve the stability and reliability of the coffee machine operation. This comprehensively improves the performance of the coffee machine's extraction structure and the user experience. Attached Figure Description

[0019] Figure 1 is a cross-sectional structural diagram of this utility model;

[0020] Figure 2 is a structural schematic diagram of this utility model;

[0021] Figure 3 is an exploded structural diagram of this utility model;

[0022] Figure 4 is a cross-sectional structural diagram of this utility model.

[0023] Reference numerals: 1. Extraction disc body; 2. Elastic sealing disc assembly; 3. Disc body fixing component; 4. Fluid channel; 5. Recessed portion; 6. Unpacking gasket; 7. Sealing disc; 8. Elastic component; 9. Central shaft; 10. Central through hole; 11. Threaded limiting component; 12. Limiting portion; 13. Fluid hole; 14. Fluid interface; 15. Sealing component; 16. Coffee bag; 17. Extraction assembly. Detailed Implementation

[0024] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0025] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] Furthermore, in addition to indicating orientation or positional relationship, the aforementioned terms may also be used to indicate other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in this utility model can be understood according to the specific circumstances.

[0027] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts. The connection methods described herein are existing technologies without any modifications and are common knowledge to those skilled in the art. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] In this embodiment 1,

[0030] As shown in Figures 1 to 4, an extraction structure for a coffee machine includes an extraction assembly 17, characterized in that: the extraction assembly 17 includes an extraction disc 1 having a fluid channel 4, an elastic sealing disc 7 assembly 2 disposed within the extraction disc 1, and a disc fixing member 3 for fixing the extraction disc 1; the extraction disc 1 is provided with a recessed portion 5 for fitting a coffee bag 16, and the elastic sealing disc 7 assembly 2 is elastically arranged within the recessed portion 5.

[0031] By configuring the extraction assembly 17, which includes an extraction disc 1 with a fluid channel 4, an elastic sealing disc 7 assembly 2, and a disc fixing member 3, and providing a recess 5 on the extraction disc 1 for the coffee bag 16 to fit, the elastic sealing disc 7 assembly 2 is elastically arranged within the recess 5. This allows the extraction disc 1 to precisely guide the fluid, providing a suitable channel for coffee extraction; the elastic arrangement of the elastic sealing disc 7 assembly 2 can better adapt to the shape of the coffee bag 16, enhancing sealing and effectively preventing coffee leakage during extraction, thus improving the extraction effect; the recess 5 facilitates the positioning and fit of the coffee bag 16, keeping it stable during extraction and improving the uniformity of extraction. Simultaneously, the disc fixing member 3 ensures the stable installation of the entire extraction disc 1, ensuring that no components shift during coffee machine operation and guaranteeing smooth extraction.

[0032] The elastic sealing disc assembly 2 includes, from left to right, a depackaging pad 6 for preventing coffee bags 16 from sticking, a sealing disc 7, and an elastic element 8. A central axis 9 extends along the extraction disc body 1 on the sealing disc 7. A central through hole 10 is arranged opposite to the extraction disc body 1 along the central axis 9. The depackaging pad 6 is arranged on the sealing disc 7 along the central axis 9, and the elastic element 8 is arranged in the central through hole 10 along the central axis 9.

[0033] The elastic sealing disc assembly 2 includes, from left to right, a release pad 6 to prevent coffee bags 16 from sticking, a sealing disc 7, and an elastic element 8. A central shaft 9 extends along the extraction disc body 1 on the sealing disc 7. A central through hole 10 is arranged opposite to the extraction disc body 1 along the central shaft 9. The release pad 6 is positioned on the sealing disc 7 along the central shaft 9, and the elastic element 8 is positioned within the central through hole 10 along the central shaft 9. The release pad 6 effectively solves the problem of coffee bags 16 easily sticking to the sealing disc 7 after extraction, facilitating cleaning and improving the ease of use of the coffee machine. The sealing disc 7, in conjunction with the elastic element 8, utilizes the elastic deformation of the elastic element 8 to further enhance the sealing effect, better resisting internal pressure during extraction and preventing coffee leakage. The central shaft 9 and the central through hole 10 not only provide precise positioning for each component, making the entire elastic sealing disc assembly 2 more compact, but also facilitate the transmission of force between components, ensuring the stable implementation of the sealing and release functions.

[0034] The central shaft 9 has a hollow thread inside, and the unpacking pad 6 is threadedly connected to the sealing disc 7 along the central shaft 9. A threaded limiting member 11 is arranged at the tail end of the central shaft 9.

[0035] By creating a hollow thread inside the central shaft 9, the unpacking pad 6 is threadedly connected to the sealing disc 7 along the central shaft 9. A threaded limiting member 11 is arranged at the tail end of the central shaft 9. The hollow thread of the central shaft 9 reduces the weight of the entire component without affecting its structural strength, while providing a convenient connection method for installing the unpacking pad 6. The threaded connection makes it easy to install and disassemble the unpacking pad 6, facilitating replacement after a period of use to maintain a good anti-adhesion effect. The threaded limiting member 11 ensures that the unpacking pad 6 will not loosen due to vibration or other reasons during use, ensuring the stability of the connection between the unpacking pad 6 and the sealing disc 7, thereby ensuring the reliable realization of the unpacking function.

[0036] The central through hole 10 has a limiting part 12, and the elastic element 8 is sleeved on the central shaft 9 between the sealing disc 7 and the limiting part 12.

[0037] By creating a limiting part 12 in the central through hole 10, the elastic element 8 is fitted onto the central shaft 9 between the sealing disc 7 and the limiting part 12. The limiting part 12 provides precise positioning for the elastic element 8, making its installation position on the central shaft 9 more accurate and ensuring uniform force distribution. This results in a more stable and reliable sealing effect for the elastic sealing disc 7 assembly 2. Simultaneously, the limiting part 12, in conjunction with the sealing disc 7, restricts excessive compression or stretching of the elastic element 8, extending its service life and ensuring the long-term stable operation of the entire extraction structure.

[0038] The sealing disk 7 is provided with a plurality of fluid holes 13, at least one of which is connected to the fluid channel 4.

[0039] By arranging several fluid holes 13 on the sealing disc 7, with at least one fluid hole 13 communicating with the fluid channel 4, the arrangement of multiple fluid holes 13 increases the contact area between the fluid and the coffee bag 16 during coffee extraction, resulting in more complete coffee extraction and better extraction of the effective components in the coffee, thus improving the taste and quality of the coffee. Simultaneously, the design of communicating with the fluid channel 4 ensures smooth fluid flow between the extraction disc 1 and the sealing disc 7, providing the necessary fluid circulation conditions for coffee extraction and ensuring the efficient execution of the extraction process.

[0040] The extraction disc 1 is provided with a fluid interface 14 on the opposite side of the sealing disc 7, and a sealing element 15 is provided in the fluid interface 14.

[0041] A fluid interface 14 is arranged on the opposite side of the sealing disc 7 along the extraction disc 1, and a seal 15 is provided inside the fluid interface 14. The fluid interface 14 facilitates the connection between the extraction disc 1 and other fluid delivery components of the coffee machine, enabling smooth fluid flow and ensuring a stable supply of fluid required during coffee extraction. The seal 15 effectively prevents leakage at the fluid connection point, ensuring the sealing of the entire coffee machine's fluid system, improving the operational stability and reliability of the coffee machine, and preventing damage to other internal components of the coffee machine due to fluid leakage.

[0042] In this embodiment 2,

[0043] As shown in Figures 1 to 4, by setting the extraction assembly 17, which includes the extraction disc 1, the elastic sealing disc 7 assembly 2, and the disc fixing component 3, not only is precise fluid guidance achieved, enhancing sealing and positioning of the coffee bag 16, but also installation stability is ensured. The elastic sealing disc 7 assembly 2 includes a bag removal pad 6, a sealing disc 7, and an elastic element 8, solving the problem of coffee bag 16 sticking and improving cleaning convenience, while also strengthening the sealing effect with the elastic element 8. The hollow thread design of the central shaft 9 and related connections and limiting settings facilitate the replacement of the bag removal pad 6 and ensure its stable connection. The central through hole 10 and the limiting part 12 precisely position the elastic element 8, extending the life of the elastic element 8 and ensuring stable sealing effect. Multiple fluid holes 13 on the sealing disc 7 are connected to the fluid channel 4, improving the fullness and quality of coffee extraction. The fluid interface 14 and internal seal 15 on the extraction disc 1 ensure smooth fluid connection and supply, prevent leakage, and improve the stability and reliability of the coffee machine operation. This comprehensively improves the performance of the coffee machine's extraction structure and user experience.

[0044] In this embodiment 3,

[0045] As shown in Figures 1 to 4, hot water enters the sealing disc 7 area from the fluid channel 4 through the fluid hole 13, which communicates with the fluid channel 4. Due to the elasticity of the elastic sealing disc 7 component 2, the sealing disc 7 fits tightly against the coffee bag 16, ensuring good sealing and preventing hot water leakage. The hot water makes full contact between the sealing disc 7 and the coffee bag 16, realizing the coffee extraction process. During this process, the elastic element 8 adapts to pressure changes during extraction through its elastic deformation, further ensuring the sealing effect and maintaining a stable extraction process.

[0046] After extraction, the release pad 6 comes into play. Because the release pad 6 is positioned on the sealing disc 7 and in direct contact with the coffee bag 16, it effectively prevents the coffee bag 16 from sticking to the sealing disc 7. When cleaning the coffee bag 16 is needed, the release pad 6 facilitates the separation of the coffee bag 16 from the sealing disc 7, allowing the user to easily remove the coffee bag 16, greatly improving cleaning convenience. The release pad 6 and the sealing disc 7 are connected by threads on the central shaft 9, facilitating the disassembly and replacement of the release pad 6 to maintain good anti-sticking performance.

[0047] In the description of this specification, references are made to the terms "one embodiment", "some embodiments", "example", "specific example".

[0048] The descriptions using terms such as "example" or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the existing technology, and will not be described in detail here.

[0050] The above description is only a preferred embodiment of this utility model. For those skilled in the art, various modifications and variations can be made in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. An extraction structure for a coffee machine comprising an extraction assembly, characterized in that: The extraction assembly includes an extraction disc body with a fluid channel, an elastic sealing disc assembly disposed within the extraction disc body, and a disc body fixing member for fixing the extraction disc body. The extraction disc body is provided with a recess for coffee bag adhesion, and the elastic sealing disc assembly is elastically arranged within the recess.

2. The extraction structure for a coffee machine according to claim 1, characterized in that: The elastic sealing disc assembly includes, from left to right, a depacket pad for preventing coffee bags from sticking, a sealing disc, and an elastic element. A central axis extends along the direction of the extraction disc body on the sealing disc. The extraction disc body has a central through hole arranged opposite to the central axis. The depacket pad is arranged on the sealing disc along the central axis, and the elastic element is arranged in the central through hole along the central axis.

3. The extraction structure for a coffee machine according to claim 2, characterized in that: The central shaft has a hollow thread, the unpacking pad is threaded along the central shaft and is mounted on the sealing disc, and a threaded limiting element is arranged at the tail end of the central shaft.

4. An extraction structure for a coffee machine according to claim 3, characterized in that: The central through hole has a limiting part, and the elastic element is sleeved on the central shaft between the sealing disc and the limiting part.

5. The extraction structure for a coffee machine according to claim 4, characterized in that: The sealing disc is provided with a plurality of fluid holes, at least one of which is in communication with a fluid channel.

6. An extraction structure for a coffee machine according to claim 5, characterized in that: The extraction disc body has a fluid interface arranged on the opposite side of the sealing disc, and a seal is provided inside the fluid interface.

Images