Coffee waste residue liquid discharging structure and coffee machine

Abstract

The utility model relates to the technical field of coffee machines, and provides a coffee waste residue liquid discharging structure and a coffee machine.The coffee waste residue liquid discharging structure comprises a shell, and an extraction cavity extending in the vertical direction is formed in the shell; a piston is arranged in the extraction cavity and can vertically move to move out of the extraction cavity, and the piston can transversely move to one side of the extraction cavity to open the extraction cavity after moving out of the extraction cavity; a material receiving groove is formed in the position, below the piston, of the shell and used for receiving liquid dripping from the piston. According to the technical scheme, when the piston transversely moves and moves to one side of the extraction cavity, liquid such as coffee liquid left on the surface of the piston can be effectively received by the material receiving groove. The problem that residual liquid drips to pollute the peripheral area of the extraction part after the piston transversely moves in the prior art is solved, cleanliness and tidiness of the coffee machine in the using process are guaranteed, and food hygiene and safety are guaranteed.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of coffee machine technology, specifically to a coffee waste liquid discharge structure and a coffee machine. Background Technology

[0002] In the field of coffee making equipment, the brew head of a coffee machine is the core component for coffee extraction. During the coffee making process, coffee grounds need to be added to the brew head, and after brewing, the coffee grounds need to be removed. Therefore, the loading and unloading of coffee is an important part of using a coffee machine.

[0003] To facilitate loading and unloading, existing coffee machines typically employ a design where the upper piston slides vertically out of the extraction chamber and then moves laterally to open it. While this design addresses the inconvenience of loading and unloading to some extent, it introduces new technical drawbacks. After extraction, coffee and other liquids inevitably remain on the surface of the upper piston. Because the upper piston needs to move laterally, this residual liquid cannot be effectively collected and processed during and after its movement, and will gradually drip. This dripping liquid not only contaminates the area surrounding the extraction section, affecting the cleanliness of the equipment and food hygiene and safety, but also... Utility Model Content

[0004] To overcome the above-mentioned defects, embodiments of this utility model provide a coffee waste liquid discharge structure and a coffee machine, which solves the technical problem in the prior art that after the piston of the coffee machine is removed from the extraction chamber, the liquid remaining on the piston will gradually drip down and contaminate the surrounding area of ​​the extraction part.

[0005] According to one aspect, at least one embodiment of the present invention provides a coffee waste liquid discharge structure, comprising:

[0006] The housing has an extraction chamber inside; a piston is provided inside the extraction chamber, and the piston is arranged to be movable to move out of the extraction chamber, and after being moved out, it can be moved laterally to one side of the extraction chamber to open the extraction chamber; the housing has a receiving groove located on one side of the extraction chamber, and the receiving groove is used to receive liquid dripping from the piston.

[0007] For example, in a coffee waste liquid discharge structure provided in at least one embodiment of the present invention, the extraction chamber extends in a vertical direction.

[0008] For example, in a coffee waste liquid discharge structure provided in at least one embodiment of the present invention, a discharge channel is provided at the bottom of the receiving tank, and the discharge channel is used to discharge the liquid in the receiving tank.

[0009] For example, in a coffee waste liquid discharge structure provided in at least one embodiment of the present invention, the shell is provided with a guide plate, the guide plate is located below the discharge channel, the guide plate and the inner wall of the shell together form a guide channel, and the guide channel is used to guide the flow of liquid.

[0010] For example, in a coffee waste liquid discharge structure provided in at least one embodiment of the present invention, a collection tank is provided below the shell, and a liquid guide plate is provided at the bottom end of the flow channel, with the liquid guide plate facing the collection tank, for guiding the liquid in the flow channel into the collection tank.

[0011] For example, in a coffee waste liquid discharge structure provided in at least one embodiment of the present invention, the inner wall of the receiving trough is provided with a liquid-blocking flange, which is arranged around the top of the receiving trough to prevent liquid from splashing out from the edge of the receiving trough.

[0012] For example, in a coffee waste liquid discharge structure provided in at least one embodiment of the present invention, the width of the opening of the receiving trough is greater than the maximum lateral width of the piston, so as to ensure that the liquid dripping when the piston moves laterally can fall into the receiving trough.

[0013] For example, in a coffee waste liquid discharge structure provided in at least one embodiment of the present invention, the guide plate is inclined and the inclined direction of the guide plate is towards the outlet end of the guide channel, so as to guide the liquid flow by gravity.

[0014] For example, in a coffee waste liquid discharge structure provided in at least one embodiment of the present invention, the collection bucket is detachably connected to the shell, and the top opening of the collection bucket corresponds to the end position of the liquid guide plate.

[0015] According to another aspect, at least one embodiment of the present invention also provides a coffee machine, including a coffee waste liquid discharge structure.

[0016] The beneficial effects of the embodiments of this utility model are as follows:

[0017] In this invention, a rational spatial layout is formed between the shell, extraction chamber, piston, and receiving trough. The piston can move vertically out of the extraction chamber and laterally to open the chamber, meeting the convenience requirements of loading and unloading coffee. The receiving trough is located below the piston, corresponding to the piston's movement path and position, allowing residual coffee liquid and other liquids on the piston's surface to be effectively collected during lateral movement and after it moves to the extraction chamber side. This design completely solves the problem of residual liquid dripping and contaminating the surrounding area of ​​the extraction section after the piston moves laterally in existing technologies, preventing long-term liquid accumulation and ensuring the cleanliness of the coffee machine during use, thus guaranteeing food hygiene and safety. The receiving trough provides a basis for subsequent treatment of residual liquid, enabling the entire discharging structure to achieve convenient loading and unloading while also providing cleaning and protection for the equipment, improving the practicality and reliability of the coffee machine. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a coffee machine according to one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the coffee waste liquid discharge structure in another embodiment of this utility model;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0022] In the diagram: 1. Shell, 11. Extraction chamber, 2. Piston, 12. Receiving trough, 13. Discharge channel, 4. Guide plate, 41. Guide channel, 5. Collection tank, 6. Liquid guide plate, 121. Liquid-blocking flange. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0024] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0025] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] like Figures 1-2The diagram illustrates a coffee grounds discharge structure according to an embodiment of the present invention. The housing 1 contains a vertically extending extraction chamber 11, which holds coffee grounds and performs the extraction process. A piston 2 is installed within the extraction chamber 11, slidingly engaging with the inner wall of the chamber and capable of moving vertically up and down. When coffee grounds need to be discharged, the piston 2 first moves vertically upwards until it is completely removed from the extraction chamber 11, at which point the upper opening of the chamber 11 is opened. Then, the piston 2 can move laterally from directly above the extraction chamber 11 to one side, thus fully opening the chamber 11 to facilitate the discharge of coffee grounds. A receiving groove 12 is located below the piston 2 on the housing 1, its position corresponding to the path and stopping position of the piston 2 after it has moved laterally out of the extraction chamber 11. In other words, whether the piston 2 is moving laterally or to one side of the extraction chamber 11, the area below the piston 2 corresponds to the area above the receiving tank 12, so that the liquid dripping from the piston 2 can fall directly into the receiving tank 12. The receiving tank 12 has a certain capacity, and its shape and structural design can ensure that it can receive all the liquid dripping from the piston 2, preventing the liquid from dripping into other areas inside the housing 1.

[0030] In this coffee waste liquid discharge structure, a reasonable spatial layout is formed between the shell 1, the extraction chamber 11, the piston 2, and the receiving trough 12. The piston 2 can move vertically out of the extraction chamber 11 and move laterally to open the chamber, meeting the convenience requirements of loading and unloading coffee. The receiving trough 12 is located below the piston 2, corresponding to the movement path and position of the piston 2, so that residual coffee liquid and other liquids on the surface of the piston 2 during its lateral movement and after it moves to the side of the extraction chamber 11 can be effectively collected by the receiving trough 12. This design completely solves the problem of residual liquid dripping and contaminating the surrounding area of ​​the extraction part after the piston 2 moves laterally in the prior art, avoiding liquid accumulation, ensuring the cleanliness of the coffee machine during use, and ensuring food hygiene and safety. The setting of the receiving trough 12 provides a basis for subsequent treatment of residual liquid, so that the entire discharge structure can not only achieve convenient loading and unloading, but also take into account the functions of cleaning and protecting the equipment, improving the practicality and reliability of the coffee machine.

[0031] like Figures 2-3 As shown, a discharge channel 13 is provided at the center of the bottom of the receiving tank 12. The diameter of the discharge channel 13 is adapted to the capacity of the receiving tank 12 and the liquid dripping speed to ensure that the liquid in the receiving tank 12 can be discharged in time. The discharge channel 13 extends through the bottom of the receiving tank 12 and communicates with the internal space of the shell 1, forming an initial channel for the liquid to flow from the receiving tank 12 to the outside.

[0032] The discharge channel 13 allows the liquid received by the receiving tank 12 to be discharged in a timely manner through the channel, avoiding the accumulation of liquid in the receiving tank 12 for a long time, reducing bacterial growth or odor problems caused by liquid residue, and providing a basic interface for liquid transmission for subsequent flow guiding structures, ensuring the continuity of the liquid treatment process.

[0033] like Figures 2-3 As shown, a guide plate 4 is fixedly installed on the shell 1 directly below the discharge channel 13. One end of the guide plate 4 is fixedly connected to the inner wall of the shell 1, and the other end extends downwards at an incline. A guide channel 41 is formed between the guide plate 4 and the inner wall of the shell 1, with the upper end connected to the discharge channel 13 and the lower end gradually narrowing. The cross-sectional shape of the guide channel 41 is an inverted trapezoid, and its inclination angle satisfies the physical conditions for the natural flow of liquid under gravity, ensuring that the liquid flows smoothly downwards along the guide channel 41 after flowing out of the discharge channel 13.

[0034] The flow channel 41 formed by the guide plate 4 and the inner wall of the housing 1 guides the liquid flow by gravity, eliminating the need for an additional power unit and reducing equipment energy consumption. The inclined design of the flow channel 41 causes the liquid to flow along a fixed path, preventing it from flowing randomly inside the housing 1 and causing secondary pollution. At the same time, the narrowed channel structure accelerates the liquid flow speed and improves the flow guiding efficiency.

[0035] like Figures 1-2 As shown, a collection tank 5 is located below the housing 1, with its top opening corresponding to the bottom end of the guide channel 41. A liquid guide plate 6 is fixedly connected to the bottom end of the guide channel 41. The liquid guide plate 6 is flat and inclined towards the collection tank 5, with its end extending directly above the opening of the collection tank 5, ensuring that the liquid in the guide channel 41 is guided by the liquid guide plate 6 and accurately falls into the collection tank 5. The collection tank 5 is detachably connected to the housing 1 via a snap-fit ​​or slot structure, facilitating user removal and cleaning.

[0036] The liquid guide plate 6 and the collection tank 5 work together to form a complete liquid collection terminal. The inclined guiding effect of the liquid guide plate 6 ensures that the liquid flows accurately into the collection tank 5, preventing leakage to the outside of the equipment. The detachable collection tank 5 design makes it convenient for users to clean regularly and keep the inside of the equipment clean. The independent setting of the collection tank 5 also facilitates centralized liquid treatment and prevents liquid residue inside the equipment from causing corrosion to other components.

[0037] like Figure 3 As shown, a liquid-blocking flange 121 is provided at the top edge of the inner wall of the receiving groove 12. The liquid-blocking flange 121 surrounds the opening of the receiving groove 12 (its height and specific width are set according to the liquid splash amplitude when the piston 2 moves).

[0038] The liquid-blocking flange 121 effectively prevents liquid splashing caused by vibration or inertia during the movement of the piston 2 by physically blocking the groove opening. This ensures that the liquid can only fall into the receiving groove 12 from above the groove opening, preventing liquid from overflowing from the edge of the receiving groove 12 and contaminating other areas inside the housing 1, thus improving the reliability of the receiving groove 12 in receiving liquid.

[0039] like Figures 2-3 As shown, the width of the receiving groove 12 is greater than the maximum width of the piston 2 when it moves laterally, specifically 1.1-1.3 times the maximum lateral width of the piston 2 (the specific multiple is determined based on the movement trajectory of the piston 2 and the layout of the receiving groove 12). The shape of the receiving groove 12 is rectangular or elliptical, and its length and width cover the entire path area of ​​the piston 2's lateral movement, ensuring that the liquid dripping below the piston 2 can fall into the receiving groove 12 at any position of the piston 2's lateral movement.

[0040] The design of the groove width ensures that the receiving area of ​​the receiving groove 12 completely covers the movement trajectory of the piston 2, eliminating the possibility of liquid dripping outside the receiving groove 12 from a spatial layout perspective. Even if the piston 2 moves laterally at its extreme position, the residual liquid can still be effectively collected by the receiving groove 12, solving the leakage problem caused by insufficient receiving area in the prior art and improving the rigor of the structural design.

[0041] like Figures 2-3 As shown, the guide plate 4 is inclined at an angle of 15°-30° (set according to the liquid viscosity and the guide distance), with the inclined direction facing the outlet end of the guide channel 41. The surface of the guide plate 4 is smooth and flat, ensuring that the liquid flows unimpeded along the surface of the guide plate 4 under the action of gravity, and avoiding liquid stagnation or backflow due to surface resistance.

[0042] The inclined design of the guide plate 4 fully utilizes gravity as the driving force, allowing the liquid to flow towards the outlet end along the guide plate 4 without external force, simplifying the liquid transmission structure and reducing maintenance costs. The smooth surface and reasonable inclination angle ensure smooth liquid flow, prevent liquid residue during the guiding process, and ensure the long-term effective operation of the guide channel 41.

[0043] like Figures 1-3 As shown, the collection bucket 5 is detachably connected to the housing 1 via a snap-fit ​​structure located at the bottom of the housing 1. The snap-fit ​​includes an elastic claw located at the bottom of the housing 1 and a slot at the top of the collection bucket 5. The size of the top opening of the collection bucket 5 matches the position and width of the end of the liquid guide plate 6, ensuring that the liquid guided by the liquid guide plate 6 falls completely into the collection bucket 5 without any dripping gaps.

[0044] The detachable connection makes the installation and removal of the collection tank 5 simple, allowing users to complete the cleaning work without tools, thus improving the convenience of equipment use. The precise alignment design between the opening of the collection tank 5 and the liquid guide plate 6 ensures the sealing and accuracy of the liquid collection process, preventing liquid from overflowing during collection, and forming a complete closed loop for liquid treatment in conjunction with the flow guiding structure.

[0045] like Figures 1-2 As shown, this illustrates a coffee machine according to another embodiment of the present invention, including the coffee waste liquid discharge structure described above, which is integrated into the brewing head assembly of the coffee machine. The housing 1 serves as the main support structure for the brewing head and is fixedly connected to the frame of the coffee machine; the piston 2 moves via vertically arranged guide rails and horizontally arranged slide rails, driven by a drive motor inside the coffee machine through a gear and rack mechanism; the receiving trough 12, the guide channel 41, the liquid guide plate 6, and the collection bucket 5 are connected in sequence to form a liquid collection path from below the piston 2 to the outside of the device.

[0046] By integrating the dispensing structure into the coffee machine, the coordinated action of all components allows the machine to simultaneously handle residual liquid from piston 2 during extraction and grounds removal, avoiding the cleaning difficulties and component corrosion issues caused by liquid dripping in traditional coffee machines. The modular design of the dispensing structure is compatible with the overall structure of the coffee machine, improving reliability and ease of use without increasing the machine's size, providing users with a cleaner and more durable coffee-making device.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A coffee waste liquid discharge structure, characterized in that, include: The housing (1) has an extraction chamber (11) inside; the extraction chamber (11) has a piston (2) inside, the piston (2) is arranged to be movable to move out of the extraction chamber (11), and after being moved out, it can be moved laterally to one side of the extraction chamber (11) to open the extraction chamber (11); the housing (1) has a receiving groove (12) located on one side of the extraction chamber (11), the receiving groove (12) is used to receive liquid dripping from the piston (2).

2. The coffee waste liquid discharge structure according to claim 1, characterized in that, The extraction chamber (11) extends in the vertical direction.

3. The coffee waste liquid discharge structure according to claim 1, characterized in that, The bottom of the receiving tank (12) is provided with a discharge channel (13), which is used to discharge the liquid in the receiving tank (12).

4. The coffee waste liquid discharge structure according to claim 3, characterized in that, The housing (1) is provided with a guide plate (4), which is located below the discharge channel (13). The guide plate (4) and the inner wall of the housing (1) together form a guide channel (41), which is used to guide the flow of liquid.

5. The coffee waste liquid discharge structure according to claim 4, characterized in that, The housing (1) is provided with a collection bucket (5) below it, and the bottom of the flow channel (41) is provided with a liquid guide plate (6). The liquid guide plate (6) faces the collection bucket (5) and is used to guide the liquid in the flow channel (41) into the collection bucket (5).

6. The coffee waste liquid discharge structure according to claim 1, characterized in that, The inner wall of the receiving groove (12) is provided with a liquid-blocking flange (121), which is arranged around the top of the receiving groove (12) to prevent liquid from splashing out from the edge of the receiving groove (12).

7. The coffee waste liquid discharge structure according to claim 1, characterized in that, The width of the groove of the receiving groove (12) is greater than the maximum lateral width of the piston (2) to ensure that the liquid dripping when the piston (2) moves laterally can fall into the receiving groove (12).

8. The coffee waste liquid discharge structure according to claim 4, characterized in that, The guide plate (4) is inclined, and the inclined direction of the guide plate (4) is towards the outlet end of the guide channel (41) so as to guide the liquid flow by gravity.

9. The coffee waste liquid discharge structure according to claim 5, characterized in that, The collection bucket (5) is detachably connected to the housing (1), and the top opening of the collection bucket (5) corresponds to the end position of the liquid guide plate (6).

10. A coffee machine, characterized in that, The coffee waste liquid discharge structure includes any one of claims 1-9.

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