Coffee ground cake automatic withdrawing structure of coffee machine

By designing a pusher structure driven by elastic elements in the coffee machine, the problem of coffee grounds being difficult to detach automatically has been solved, enabling convenient coffee grounds removal and improving the user experience.

CN224193304UActive Publication Date: 2026-05-05FOSHAN SIJIFENG INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN SIJIFENG INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In existing pressure coffee machines, coffee grounds are difficult to detach from the funnel automatically, requiring users to use special tools or water to rinse them, which increases costs and operational difficulty, resulting in a poor user experience.

Method used

Design an automatic coffee cake ejection structure for a coffee machine, using an elastic element to drive a pusher plate to move elastically on the funnel, ejecting the coffee cake and simplifying the cleaning process.

Benefits of technology

It enables automatic separation of coffee grounds, improving user convenience and experience while reducing operational complexity and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic coffee ground cake withdrawing structure of a coffee machine, which belongs to the technical field of coffee machines and comprises a funnel, a push plate is arranged on the funnel, an elastic part is arranged on the push plate, and the push plate elastically moves on the funnel through the elastic part and ejects out a coffee ground cake on the funnel during movement. According to the structure, by means of the elastic acting force of the elastic piece, the push disc can elastically move on the funnel, coffee grounds on the funnel are pushed by means of the movement of the push disc on the funnel, and then the solid coffee grounds can be easily separated from the funnel; the defect that in the prior art, a funnel cannot automatically retreat coffee grounds and cakes is effectively overcome, and therefore the use convenience and experience of a user are improved.
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Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, specifically to an automatic coffee grounds ejection structure for a coffee machine. Background Technology

[0002] In existing pressure coffee machines, the funnel is a key component for making espresso, and its main shape is circular. After brewing, the coffee grounds remaining in the funnel solidify into a coffee cake. Removing this coffee cake easily is difficult because it adheres completely to the funnel wall, creating a vacuum that makes it hard to detach. Users often resort to relatively forceful methods to remove the coffee cake, such as repeatedly striking the funnel with appropriate force against a specialized tool (like a strip of metal tubing) to dislodge it. However, this requires purchasing the tool, increasing user costs, and the tool takes up storage space. Alternatively, users can repeatedly rinse the funnel with water, but this is inconvenient, and if the coffee cake remains for a long time, rinsing may not remove it, resulting in a poor user experience.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The present invention aims to provide an automatic coffee grounds ejection structure for a coffee machine to overcome the shortcomings of the prior art.

[0005] An automatic coffee cake ejection structure for a coffee machine designed for this purpose includes a funnel, a push plate on the funnel, an elastic element on the push plate, and the push plate elastically moves on the funnel through the elastic element, ejecting the coffee cake on the funnel when it moves.

[0006] A coffee powder cup is fixedly mounted on the funnel, and a push rod is provided at the bottom of the push plate. The push rod extends to the outside of the coffee powder cup and the funnel. An elastic element is provided on the push rod and acts elastically on the funnel and the push plate. The push plate moves elastically on the coffee powder cup through the elastic element.

[0007] A button is fixedly connected to the outer end of the push rod. The elastic element is a compression spring and is positioned and sleeved on the push rod. One end of the elastic element acts elastically on the funnel, and the other end acts elastically on the button. The push plate moves elastically toward the bottom of the coffee powder cup through the elastic force of the elastic element.

[0008] The funnel bottom is detachably fitted with a funnel bottom cover. The push rod passes through the coffee powder cup, the funnel, and the funnel bottom cover in sequence and is fixedly connected to the button. The push plate overcomes the elastic force of the elastic element by pressing the button and moves toward the top of the coffee powder cup, and pushes out the coffee grounds cake on the coffee powder cup when it moves.

[0009] The funnel is provided with a funnel guide hole, the bottom cover of the funnel is provided with a bottom cover guide protrusion, the bottom cover guide protrusion is provided with a bottom cover guide hole, the funnel guide hole and the bottom cover guide hole correspond to each other, the top rod guides and slides on the funnel guide hole and the bottom cover guide hole, and the button guides and presses on the bottom cover guide hole.

[0010] The funnel has a funnel outlet at its bottom, the coffee powder cup has a powder cup anti-airway opening at its bottom corresponding to the funnel guide hole and the funnel outlet, the push plate has a push plate outlet, and the funnel bottom cover has a bottom cover outlet. The funnel outlet, the push plate outlet, and the bottom cover outlet are interconnected.

[0011] The push plate is also equipped with a filter screen.

[0012] A sealing element is provided between the push plate and the coffee powder cup, and the two are sealed together by the sealing element.

[0013] A handle is fixedly connected to the outside of the funnel.

[0014] This invention, through structural improvements, utilizes the elastic force of the elastic element to allow the pusher plate to move elastically on the funnel. By using the movement of the pusher plate on the funnel, the coffee grounds on the funnel are pushed upwards, allowing the solid coffee grounds to easily detach from the funnel. This effectively replaces the drawback of the existing technology where the funnel cannot automatically remove the coffee grounds, thereby improving user convenience and experience. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the dissected structure of an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the assembly structure of an embodiment of the present utility model.

[0017] Figure 3 This is a schematic cross-sectional view of the assembly structure of the funnel, handle, and coffee powder cup according to an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the structure of a coffee grounds cake before it is ejected according to an embodiment of the present invention.

[0019] Figure 5This is a schematic diagram of the structure of the coffee grounds after they have been removed according to an embodiment of the present invention. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See Figures 1-5 The automatic coffee grounds ejection mechanism of this coffee machine includes a funnel 1, a push plate 2 on the funnel 1, an elastic element 3 on the push plate 2, and the push plate 2 is elastically movable on the funnel 1 through the elastic element 3, and ejects the coffee grounds A on the funnel 1 when it moves.

[0023] This embodiment utilizes the elastic force of the elastic element 3 to allow the pusher 2 to move elastically on the funnel 1. With the movement of the pusher 2 on the funnel 1, the coffee grounds A on the funnel 1 is pushed upward, so that the solid coffee grounds A can be easily removed from the funnel 1. This effectively replaces the drawback of the existing technology where the funnel 1 cannot automatically remove the coffee grounds A, thereby improving the user's convenience and experience.

[0024] A coffee powder cup 4 is fixedly mounted on the funnel 1. In this embodiment, the coffee powder cup 4 is fixed to the funnel 1 by fasteners. With the support of the coffee powder cup 4, coffee powder can be placed on the coffee powder cup 4. A push rod 5 is provided at the bottom of the push plate 2. The push rod 5 extends to the outside of the coffee powder cup 4 and the funnel 1. An elastic element 3 is provided on the push rod 5 and acts elastically on the funnel 1 and the push plate 2. The push plate 2 moves elastically on the coffee powder cup 4 through the elastic element 3.

[0025] Since the outer end of the push rod 5 extends beyond the coffee powder cup 4 and the funnel 1, the user can contact the outer end of the push rod 5 and drive the push plate 2 to move elastically on the coffee powder cup 4 through the elastic element 3.

[0026] A button 6 is fixedly connected to the outer end of the push rod 5. The elastic element 3 is a compression spring and is positioned on the push rod 5. This improves the positioning stability of the elastic element 3 and ensures that it will not bend or deform during operation. One end of the elastic element 3 acts elastically on the funnel 1, and the other end acts elastically on the button 6. The push plate 2 always moves elastically towards the bottom of the coffee powder cup 4 through the elastic force of the elastic element 3.

[0027] In this embodiment, the outer end of the push rod 5 is provided with an external thread, and the button 6 is provided with a threaded hole, which is threadedly engaged with the external thread of the push rod 5, thereby achieving a fixed engagement between the push rod 5 and the button 6.

[0028] The bottom of the funnel 1 is detached and fitted with a funnel bottom cover 7. The push rod 5 passes through the coffee powder cup 4, the funnel 1, and the funnel bottom cover 7 in sequence and is fixedly connected to a button 6. The push plate 2 overcomes the elastic force of the elastic element 3 by pressing the button 6 and moves towards the top of the coffee powder cup 4, and pushes out the coffee grounds cake A on the coffee powder cup 4 when it moves.

[0029] In this embodiment, the funnel bottom cover 7 is designed to collect the coffee liquid flowing out of the funnel 1. At the same time, the funnel bottom cover 7 and the funnel 1 are connected by a rotating fastener, which not only facilitates the assembly of the two but also makes it convenient for the user to disassemble and clean them.

[0030] Button 6 is located at the bottom of the funnel cover 7. During use, the user can directly press button 6 on the outer end of the push rod 5 to drive the push plate 2 to overcome the elastic force of the elastic element 3 and move towards the top of the coffee powder cup 4. When the push plate 2 moves towards the top of the coffee powder cup 4, it pushes out the coffee grounds cake A on the coffee powder cup 4, allowing the solid coffee grounds cake A to easily detach from the funnel 1. When the force applied to button 6 disappears, the push plate 2 will elastically return to its original position towards the bottom of the coffee powder cup 4 due to the elastic force of the elastic element 3.

[0031] Among them, the reciprocating movement direction of push plate 2 is as follows Figure 1 arrow.

[0032] The funnel 1 is provided with a funnel guide hole 8, the funnel bottom cover 7 is provided with a bottom cover guide protrusion 9, and the bottom cover guide protrusion 9 is provided with a bottom cover guide hole 10. The funnel guide hole 8 and the bottom cover guide hole 10 correspond to each other. The push rod 5 slides on the funnel guide hole 8 and the bottom cover guide hole 10, and the button 6 moves on the bottom cover guide hole 10.

[0033] In this embodiment, the guiding effect of the funnel guide hole 8 and the bottom cover guide hole 10 is used to guide the top rod 5 to slide on the funnel 1 and the funnel bottom cover 7. The guiding effect of the bottom cover guide hole 10 is used to guide the button 6 to press on the funnel bottom cover 7, thereby improving the stability of the push plate 2 on the funnel 1 and the funnel bottom cover 7 and avoiding problems such as shaking and swaying of the push plate 2 during operation.

[0034] The bottom of the funnel 1 is provided with a funnel outlet 11, the bottom of the coffee powder cup 4 is provided with a powder cup anti-airway 12 corresponding to the funnel guide hole 8 and the funnel outlet 11, the push plate 2 is provided with a push plate outlet, and the bottom cover 7 of the funnel is provided with a bottom cover outlet 13. The funnel outlet 11, the push plate outlet, and the bottom cover outlet 13 are interconnected.

[0035] The push plate 2 is also equipped with a filter screen 14.

[0036] When brewing coffee, the coffee liquid passes through the filter screen 14, flows through the funnel outlet 11, collects on the funnel bottom cover 7, and finally flows out through the bottom cover outlet 13. The filter screen 14 effectively isolates the coffee grounds.

[0037] A sealing element 15 is provided between the push plate 2 and the coffee powder cup 4, and the two are sealed together by the sealing element 15.

[0038] In this embodiment, the bottom of the push plate 2 is provided with a slot, and the sealing member 15 is locked in the slot. When the push plate 2 elastically resets towards the bottom of the coffee powder cup 4, the sealing member 15 acts on the coffee powder cup 4 to achieve a sealed connection between the plate 2 and the coffee powder cup 4.

[0039] A handle 16 is fixedly connected to the outside of the funnel 1.

[0040] In this embodiment, the handle 16 is fixed to the outside of the funnel 1 by fasteners to facilitate the user's extraction of the funnel 1.

[0041] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. An automatic coffee grounds ejection structure for a coffee machine, comprising a funnel (1), characterized in that: The funnel (1) is provided with a push plate (2), the push plate (2) is provided with an elastic element (3), and the push plate (2) is elastically movable on the funnel (1) through the elastic element (3), and pushes out the coffee grounds cake (A) on the funnel (1) when it is movable.

2. The automatic coffee grounds ejection structure of the coffee machine according to claim 1, characterized in that: A coffee powder cup (4) is fixedly mounted on the funnel (1). A push rod (5) is provided at the bottom of the push plate (2). The push rod (5) extends to the outside of the coffee powder cup (4) and the funnel (1). An elastic element (3) is mounted on the push rod (5) and acts elastically on the funnel (1) and the push plate (2). The push plate (2) moves elastically on the coffee powder cup (4) through the elastic element (3).

3. The automatic coffee grounds ejection structure of the coffee machine according to claim 2, characterized in that: The top rod (5) is fixedly connected to a button (6) at its outer end. The elastic element (3) is a compression spring and is positioned on the top rod (5). One end of the elastic element (3) acts elastically on the funnel (1), and the other end acts elastically on the button (6). The push plate (2) always moves elastically toward the bottom of the coffee powder cup (4) through the elastic force of the elastic element (3).

4. The automatic coffee grounds ejection structure of the coffee machine according to claim 3, characterized in that: The funnel (1) is equipped with a funnel bottom cover (7). The push rod (5) passes through the coffee powder cup (4), the funnel (1), and the funnel bottom cover (7) in sequence and is then fixedly connected to the button (6). The push plate (2) overcomes the elastic force of the elastic element (3) by pressing the button (6) and moves toward the top of the coffee powder cup (4), and pushes out the coffee grounds cake (A) on the coffee powder cup (4) when it moves.

5. The automatic coffee grounds ejection structure of the coffee machine according to claim 4, characterized in that: The funnel (1) is provided with a funnel guide hole (8), the funnel bottom cover (7) is provided with a bottom cover guide protrusion (9), the bottom cover guide protrusion (9) is provided with a bottom cover guide hole (10), the funnel guide hole (8) and the bottom cover guide hole (10) correspond to each other, the top rod (5) is guided to slide on the funnel guide hole (8) and the bottom cover guide hole (10), and the button (6) is guided to press on the bottom cover guide hole (10).

6. The automatic coffee grounds ejection structure of the coffee machine according to claim 5, characterized in that: The funnel (1) has a funnel outlet (11) at its bottom. The coffee powder cup (4) has a powder cup anti-airway opening (12) at its bottom corresponding to the funnel guide hole (8) and the funnel outlet (11). The push plate (2) has a push plate outlet. The funnel bottom cover (7) has a bottom cover outlet (13). The funnel outlet (11), the push plate outlet, and the bottom cover outlet (13) are interconnected.

7. The automatic coffee grounds ejection structure of the coffee machine according to claim 6, characterized in that: The push plate (2) is also equipped with a filter screen (14).

8. The automatic coffee grounds ejection structure of the coffee machine according to claim 4, characterized in that: A sealing element (15) is provided between the push plate (2) and the coffee powder cup (4), and the two are sealed together by the sealing element (15).

9. The automatic coffee grounds ejection structure of the coffee machine according to claim 1, characterized in that: A handle (16) is fixedly connected to the outside of the funnel (1).