Pressurizing extraction handle of coffee machine
By incorporating a pressurization structure within the coffee machine's extraction portafilter, the problems of excessive cleaning workload and coffee powder waste in existing technologies are solved, achieving both efficient extraction and simplified cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO SEAVER ELECTRIC APPLIANCE
- Filing Date
- 2025-02-24
- Publication Date
- 2026-05-19
AI Technical Summary
Existing coffee machine brewing ports require users to manually clean the spout and ensure that the coffee grounds are compacted to extract the ideal coffee liquid, resulting in a large amount of cleaning work and coffee grounds waste.
A pressurization structure is incorporated into the extraction port of the coffee machine, including a double-layer pressurized filter cup and a single-layer filter. This pressurization structure increases the pressure of the coffee grounds, reducing the amount of coffee grounds used and simplifying the cleaning process.
It improves coffee extraction efficiency, reduces coffee bean usage and cleaning workload, and enhances the user experience.
Smart Images

Figure CN224251174U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee machines, and more particularly to a pressurized extraction handle for a coffee machine. Background Technology
[0002] Currently, in semi-automatic pressure coffee machines, the extraction portafilter is used to collect the coffee grounds from the grinder, and then the portafilter is connected to the brewing head of the coffee machine to extract and brew the coffee.
[0003] Existing coffee brewing portafilters have spouts on both sides of the bottom. The extracted coffee flows into the cup through the spouts. However, the spouts increase the amount of cleaning work afterward, requiring users to carefully clean the grooves inside the spouts to prevent residual dirt from affecting the taste of the next batch of coffee. Furthermore, with existing brewing portafilters, users need to take a larger amount of coffee grounds into the portafilter and tamp them down to create sufficient pressure within the coffee puck to extract the ideal crema. If users take too little coffee grounds or do not tamp them down before extraction, they will not only fail to obtain the ideal crema, affecting the taste of the brewed coffee, but also waste coffee grounds to some extent. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a pressurized extraction handle for a coffee machine, based on the current state of the technology.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a pressurized extraction handle for a coffee machine, including an extraction seat and a grip portion extending from the side of the extraction seat. The extraction seat is provided with a detachable coffee bowl, and the coffee bowl is provided with a pressurized structure for pressurized filtration. The pressurized structure is detachably disposed in the coffee bowl. A small amount of coffee powder is put into the coffee bowl, and the coffee powder is extracted by pressurized filtration of the pressurized structure and filtration of the coffee bowl to obtain coffee liquid with ideal oils.
[0006] Preferably, the pressurization structure includes a double-layer pressurization mesh cup, which includes a first pressurization plate and a second pressurization plate. The first pressurization plate is stacked and fixed on the second pressurization plate, and a pressurization cavity for pressurization is formed between the outer bottom surface of the first pressurization plate and the inner bottom surface of the second pressurization plate.
[0007] Preferably, the bottom of the first pressure plate is provided with a number of densely arranged filter holes, and the bottom of the second pressure plate is provided with at least one pressure hole. The number of pressure holes is less than the number of filter holes. During the extraction process, the coffee liquid with ideal oils is extracted through the pressure chamber and the pressure hole.
[0008] Preferably, the powder bowl includes a first bowl body and a second bowl body, which are connected by a connecting part. The connecting part is a funnel-shaped annular inclined surface. A single-layer filter screen is provided at the bottom of the second bowl body. Several liquid outlet filter holes for liquid outlet are evenly distributed on the single-layer filter screen. A double-layer pressure-boosting mesh cup is snapped into the open top of the second bowl body. The liquid collection chamber is located between the outer bottom surface of the second pressure-boosting plate and the single-layer filter screen.
[0009] Preferably, the top of the extraction seat is provided with a first opening for pouring in coffee powder, the bottom of the extraction seat is provided with a second opening for dispensing coffee liquid, and the outer edge of the top of the first bowl is rolled outward to provide a rolled edge for fixing the powder bowl, which is fitted around the periphery of the first opening.
[0010] Compared with the prior art, the advantages of this utility model are as follows: by setting a pressurizing structure in the coffee bowl, it is equivalent to increasing the pressure in the coffee puck during the extraction process, so that users only need to take a small amount of coffee powder to extract coffee liquid with ideal oils, thereby improving extraction efficiency, reducing the utilization rate of coffee beans, reducing the economic cost of making coffee beverages, and the extracted coffee liquid can flow directly into the cup through the single-layer filter at the bottom of the coffee bowl, eliminating the need for the original dispensing spout, improving the efficiency of subsequent cleaning, and enhancing the user experience. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is an exploded structural diagram of the present invention;
[0013] Figure 3 This is a cross-sectional structural diagram of the present invention.
[0014] Reference numerals: 1. Extraction seat; 2. Holding part; 3. Powder bowl; 4. Double-layer pressure-boosting mesh cup; 5. First pressure-boosting plate; 6. Second pressure-boosting plate; 7. Pressure-boosting chamber; 8. Filter hole; 9. Pressure-boosting hole; 10. First bowl body; 11. Second bowl body; 12. Connecting part; 13. Single-layer filter screen; 14. Liquid outlet filter hole; 15. Liquid collection chamber; 16. First opening; 17. Second opening; 18. Rolled edge. Detailed Implementation
[0015] 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.
[0016] 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.
[0017] 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.
[0018] 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.
[0019] 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.
[0020] like Figures 1 to 3 As shown, this utility model provides a pressurized extraction handle for a coffee machine, including an extraction base 1 and a gripping part 2 extending to the side of the extraction base 1; specifically, the extraction base 1 is provided with a detachable coffee bowl 3, and the coffee bowl 3 is provided with a pressurized structure for pressurized filtration. The pressurized structure is detachably disposed in the coffee bowl 3. A small amount of coffee powder is placed in the coffee bowl 3, and the coffee powder is extracted by the pressurized filtration of the pressurized structure and the filtration of the coffee bowl 3 to obtain a coffee liquid with ideal oils.
[0021] The pressurization structure includes a double-layer pressurization mesh cup 4, which includes a first pressurization plate 5 and a second pressurization plate 6. Specifically, the first pressurization plate 5 is stacked and fixed on the second pressurization plate 6, and a pressurization chamber 7 for pressurization is formed between the outer bottom surface of the first pressurization plate 5 and the inner bottom surface of the second pressurization plate 6.
[0022] The bottom of the first pressure plate 5 is provided with a number of densely arranged filter holes 8; specifically, the bottom of the second pressure plate 6 is provided with at least one pressure hole 9, the number of pressure holes 9 is less than the number of filter holes 8. During the extraction process, the coffee liquid with ideal oils is extracted through the pressure chamber 7 and the pressure hole 9; preferably, the bottom of the second pressure plate 6 is provided with one pressure hole 9. The greater the difference between the number of pressure holes 9 and the number of filter holes 8, the better the pressure boosting effect, the greater the pressure in the pressure chamber 7, and the better the extraction effect.
[0023] The powder bowl 3 includes a first bowl body 10 and a second bowl body 11, which are connected by a connecting part 12. Specifically, the connecting part 12 is a funnel-shaped annular inclined surface. The bottom of the second bowl body 11 is provided with a single-layer filter screen 13, on which a plurality of liquid outlet filter holes 14 are evenly distributed. A double-layer pressure-boosting mesh cup 4 is snapped into the open top of the second bowl body 11. The liquid collection chamber 15 is located between the outer bottom surface of the second pressure-boosting plate 6 and the single-layer filter screen 13. Preferably, the number of pressure-boosting holes 9 is one and the pressure-boosting... With hole 9 located at the center of the bottom surface of the second pressure plate 6, the outlet filter holes 14 are distributed around the pressure hole 9 relative to the bottom surface of the second bowl 11. That is, the bottom surface of the second bowl 11 is closed near the center and no outlet filter holes 14 are provided. The outlet filter holes 14 are distributed around the center. The advantage of this layout is that it avoids the coffee liquid flowing directly out of the outlet filter holes 14 after passing through the pressure hole 9. This design first concentrates the coffee liquid flowing out of the pressure hole 9 into the collection chamber 15, and then evenly flows out of the cup through the outlet filter holes 14.
[0024] The extraction seat 1 has a first opening 16 at the top for pouring coffee powder, and a second opening 17 at the bottom for dispensing coffee liquid; specifically, the outer edge of the top of the first bowl 10 is rolled outward to form a rolled edge 18 for fixing the powder bowl 3, and the rolled edge 18 is fitted around the periphery of the first opening 16.
[0025] The working principle of this utility model is as follows: The double-layer pressure-increasing filter cup 4 is placed inside the coffee bowl 3, and the double-layer pressure-increasing filter cup 4 is secured to the top opening of the second bowl body 11. The coffee bowl 3 is then placed into the first opening 16 of the extraction seat 1. The rolled edge 18 on the coffee bowl 3 fits around the perimeter of the first opening 16. The rolled edge 18 ensures that the coffee bowl 3 is stably placed in the first opening 16 of the extraction seat 1. The user holds the grip part 2, aligns the inside of the coffee bowl 3 with the coffee grinder's outlet, allowing coffee powder to be collected into the coffee bowl 3. The coffee powder inside the coffee bowl 3 is then flattened, and the extraction portafilter is engaged with the coffee machine's brewing nozzle. The head is connected, hot water enters the coffee bowl 3 and comes into contact with the coffee powder on the first pressure plate 5 to start extraction. The extracted coffee liquid flows into the pressure chamber 7 through the filter holes 8 on the first pressure plate 5. Since the number of pressure holes 9 is much smaller than the number of filter holes 8, the internal pressure of the pressure chamber 7 increases, improving the extraction effect, allowing the coffee powder to be fully extracted, and improving the utilization rate of the coffee powder. The coffee liquid in the pressure chamber 7 flows out through the pressure holes 9 into the collection chamber 15, where the coffee liquid is collected. Finally, it flows directly into the cup through the liquid outlet filter holes 14 on the single-layer filter screen 13.
[0026] When cleaning is required after use, simply remove the powder bowl 3 from the extraction base 1 and rinse it.
[0027] The advantages of this invention are as follows: by setting a pressurizing structure inside the coffee bowl 3, the pressure inside the coffee powder cake during the extraction process is increased, allowing users to extract coffee liquid with ideal oils by only taking a small amount of coffee powder, thereby improving extraction efficiency, reducing the utilization rate of coffee beans, and reducing the economic cost of making coffee beverages. In addition, the extracted coffee liquid can flow directly into the cup through the single-layer filter 13 at the bottom of the coffee bowl 3, eliminating the need for the original dispensing spout, improving the efficiency of subsequent cleaning, and enhancing the user experience.
[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., 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.
[0029] 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.
[0030] 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. A pressurized extraction handle for a coffee machine, comprising an extraction base and a grip extending from the side of the extraction base, characterized in that: The extraction unit is equipped with a detachable coffee bowl, which contains a pressurizing structure for pressurized filtration. The pressurizing structure is detachably installed inside the coffee bowl. When a small amount of coffee powder is placed in the coffee bowl, the coffee powder is extracted through the pressurized filtration of the pressurizing structure and the filtration of the coffee bowl to obtain a coffee liquid with ideal oils. The pressurization structure includes a double-layer pressurization mesh cup, which includes a first pressurization plate and a second pressurization plate. The first pressurization plate is stacked and fixed on the second pressurization plate, and a pressurization cavity for pressurization is formed between the outer bottom surface of the first pressurization plate and the inner bottom surface of the second pressurization plate. The bottom of the first pressure plate is provided with several densely arranged filter holes, and the bottom of the second pressure plate is provided with at least one pressure hole. The number of pressure holes is less than the number of filter holes. During the extraction process, the coffee liquid with ideal oils is extracted through the pressure chamber and the pressure hole.
2. The pressurized extraction portafilter of a coffee machine according to claim 1, characterized in that: The powder bowl includes a first bowl body and a second bowl body, which are connected by a connecting part. The connecting part is a funnel-shaped annular inclined surface. A single-layer filter screen is provided at the bottom of the second bowl body. Several liquid outlet filter holes are evenly distributed on the single-layer filter screen for liquid outlet. A double-layer pressure-boosting mesh cup is snapped into the open top of the second bowl body. The liquid collection chamber is located between the outer bottom surface of the second pressure-boosting plate and the single-layer filter screen.
3. The pressurized extraction portafilter for a coffee machine according to claim 2, characterized in that: The extraction station has a first opening at the top for pouring in coffee powder and a second opening at the bottom for dispensing coffee liquid. The outer edge of the top of the first bowl is rolled outward to fix the powder bowl, and the rolled edge is fitted around the perimeter of the first opening.