Buffer mechanism suitable for coffee brewing assembly, coffee brewing assembly and coffee machine

Abstract

The utility model provides a buffering mechanism suitable for a coffee brewing assembly, the coffee brewing assembly and a coffee machine. The buffering mechanism comprises a main body, the main body is arranged below a filter screen of the coffee brewing assembly; the main body comprises a first enclosure bulkhead and a second enclosure bulkhead, the first enclosure bulkhead forms a first liquid receiving space, the second enclosure bulkhead is arranged around the first enclosure bulkhead, a second liquid receiving space is formed between the first enclosure bulkhead and the second enclosure bulkhead, and the main body further comprises a liquid outlet formed in the second liquid receiving space; the top of the first enclosure wall abuts against the lower side of the filter screen, the top of the first enclosure wall is arranged around a filter outlet of the filter screen, and the first enclosure wall is further provided with a first connecting opening connected with the first liquid receiving space and the second liquid receiving space. By applying the technical scheme, the problem of liquid splashing can be solved.

Description

Technical Field

[0001] This utility model relates to the field of coffee machines, specifically to a buffer mechanism suitable for coffee brewing components, coffee brewing components, and coffee machines. Background Technology

[0002] An espresso machine, a classic coffee-making device, is characterized by its ability to rapidly extract coffee grounds using high-pressure hot water, resulting in a rich and aromatic coffee. The basic structure of an espresso machine includes the main body and the portafilter. The main body has a spout that delivers heated water to the portafilter. The portafilter, located below the spout, holds and holds the coffee grounds.

[0003] The brewing portafilter has an internal compartment containing a filter screen. The filter screen supports the coffee grounds and filters out impurities produced during extraction. An outlet is located below the filter screen for the extracted coffee to flow out. To make coffee, fill the filter screen with coffee grounds, tamp it down, and then attach the brewing portafilter to the water outlet of the coffee machine. When the machine starts, the outlet releases high-pressure hot water (9-15 bar), which enters the coffee grounds, passes through the filter screen, and is efficiently extracted. The coffee then flows through the filter outlet into the water collection tank, then to the outlet on the brewing portafilter, and finally into the coffee cup.

[0004] However, in practical use, due to limitations in processing precision, tiny burrs may exist at the edge of the filter outlet. These burrs can cause irregular water jets to form when the coffee flows out, and the tilting or deviation of these jets can lead to a series of problems. For example, when the coffee flows through the sump of the coffee container's cover, a tilted jet may cause the coffee to splash outside the sump, hindering proper cushioning of the coffee within the sump. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a buffer mechanism, a coffee brewing component, and a coffee machine suitable for coffee brewing components.

[0006] This utility model provides a buffer mechanism suitable for coffee brewing components, including a main body; the main body is disposed below the filter of the coffee brewing component;

[0007] The main body includes a first enclosure wall, which forms a first liquid receiving space, and the main body also includes a liquid outlet disposed outside the first liquid receiving space;

[0008] The top of the first enclosure abuts against the lower side of the filter screen, and the top of the first enclosure is arranged around the filter outlet of the filter screen. The first enclosure is also provided with a first connection port, which is connected to the liquid outlet.

[0009] In a preferred embodiment, the main body further includes a second enclosure wall, which surrounds the first enclosure wall, and a second liquid receiving space is formed between the first enclosure wall and the second enclosure wall; the liquid outlet is disposed within the second liquid receiving space.

[0010] In a preferred embodiment, the first connection port is connected to the bottom wall of the first liquid receiving space; the bottom wall of the first liquid receiving space is higher than the bottom wall of the second liquid receiving space.

[0011] In a preferred embodiment, the first connection port is offset from the liquid outlet.

[0012] In a preferred embodiment, the first enclosure is provided with two first connection ports, which are arranged 180 degrees apart along the circumference of the first enclosure.

[0013] In a preferred embodiment, the body includes two liquid outlets; the two liquid outlets are arranged 180 degrees apart circumferentially along the first enclosure; wherein the liquid outlets and the first connection port are arranged 90 degrees apart circumferentially along the first enclosure.

[0014] In a preferred embodiment, the second enclosure is provided with a second connection port; the second connection port is connected to the bottom wall of the second liquid receiving space; the bottom wall of the second liquid receiving space includes an inclined wall connected to the liquid outlet, and the height of the inclined wall gradually decreases along the direction close to the liquid outlet.

[0015] In a preferred embodiment, the upper side of the main body is concave arc-shaped, and the first enclosure wall and the second enclosure wall are formed on the upper side of the main body; wherein, the bottom wall of the first liquid receiving space has a structure that is high in the middle and low on both sides, and the first connection port is located at the low part of the bottom wall of the first liquid receiving space.

[0016] This utility model also provides a coffee brewing component, including a coffee brewing box, a filter and the buffer mechanism;

[0017] The filter and the buffer mechanism are disposed inside the coffee brewing box, which is used to connect to the water outlet of the espresso machine to achieve brewing and extraction.

[0018] This utility model also provides a coffee machine, including the coffee brewing component.

[0019] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0020] 1. The top of the first enclosure abuts against the bottom of the filter screen and is positioned around the filter outlet, ensuring that at least most of the high-pressure coffee liquid sprayed from the filter outlet flows into the first receiving space, reducing liquid flow deviation or splashing that could overflow outside the first receiving space. Even if there are processing burrs at the filter outlet or if the liquid flow direction is deviated, the first enclosure can effectively guide the liquid into the first receiving space.

[0021] 2. The main body, through the first and second enclosures, initially buffers the high-pressure coffee liquid flowing from the filter in the first receiving space, effectively reducing the speed and impact of the liquid flow. Connecting the first and second receiving spaces via the first connection port, the coffee liquid undergoes further diversion and homogenization as it flows into the second receiving space, ensuring that the coffee liquid exits from the main body's outlet at a stable flow rate. Attached Figure Description

[0022] Figure 1 This is a perspective view of the coffee brewing component in a preferred embodiment of the present invention;

[0023] Figure 2 This is a perspective view of the coffee brewing component in a preferred embodiment of the present invention;

[0024] Figure 3 This is a cross-sectional view of the coffee brewing component in a preferred embodiment of the present invention;

[0025] Figure 4 This is a three-dimensional schematic diagram of the buffer mechanism in a preferred embodiment of the present invention;

[0026] Figure 5 This is a top view of the buffer mechanism in a preferred embodiment of the present invention;

[0027] Figure 6 This is a cross-sectional view of the buffer mechanism in a preferred embodiment of the present invention. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] A coffee brewing assembly includes a coffee brewing cartridge 1, a filter 2, and a buffer mechanism 3. The coffee brewing cartridge 1 includes a receiving chamber 11 and a handle 13, the handle 13 being connected to the outer wall of the receiving chamber 11. Two liquid outlets 12 are provided at the bottom of the receiving chamber 11. The filter 2 and the buffer mechanism 3 are respectively disposed within the receiving chamber 11. The filter 2 is positioned above the buffer mechanism 3.

[0030] The buffer mechanism 3 includes a main body, the upper side of which is concave arc-shaped, and the lower side of which has two liquid outlet columns 31, which are correspondingly inserted into two liquid outlet guide ports 12. The main body is located below the filter screen 2 of the coffee brewing assembly.

[0031] The main body includes a first enclosure 32 and a second enclosure 33. The first enclosure 32 forms a first liquid receiving space 34, and the second enclosure 33 is arranged around the first enclosure 32. A second liquid receiving space 35 is formed between the first enclosure 32 and the second enclosure 33. The main body also includes a liquid outlet 36 disposed in the second liquid receiving space 35. The liquid outlet 36 extends into the liquid outlet column 31. The top of the first enclosure 32 abuts against the lower side of the filter screen 2. The top of the first enclosure 32 is arranged around the filter outlet 21 of the filter screen 2. The first enclosure 32 is also provided with a first connection port 321 connecting the first liquid receiving space 34 and the second liquid receiving space 35.

[0032] The top of the first enclosure 32 abuts against the lower side of the filter screen 2 and is arranged around the filter outlet 21 of the filter screen 2, ensuring that most of the high-pressure coffee liquid sprayed from the filter outlet 21 can flow into the first liquid receiving space 34, thereby reducing liquid flow deviation or splashing and overflowing outside the first liquid receiving space 34. Even if there are processing burrs or liquid flow direction deviation at the outlet of the filter screen 2, the first enclosure 32 can effectively guide the liquid to the first liquid receiving space 34.

[0033] The main body, through the first enclosure 32 and the second enclosure 33, initially buffers the high-pressure coffee liquid flowing from the filter 2 in the first receiving space 34, effectively reducing the speed and impact of the liquid flow. The first receiving space 34 and the second receiving space 35 are connected by the first connection port 321, allowing the coffee liquid to be further diverted and homogenized when flowing into the second receiving space 35, ensuring that the coffee liquid is discharged from the main body's outlet 36 at a stable flow rate.

[0034] The first connection port 321 is connected to the bottom wall of the first liquid receiving space 34; in this embodiment, the lower side of the first connection port 321 is flush with the bottom wall of the first liquid receiving space 34. The connection of the first connection port 321 to the bottom wall of the first liquid receiving space 34 helps to further optimize the flow path of the liquid during the discharge process, ensuring that the liquid does not completely lose its flow velocity. The liquid can flow to the outlet 36 in the second liquid receiving space 35 under the action of gravity, thereby avoiding liquid residue in the first liquid receiving space 34.

[0035] The bottom wall of the first receiving space 34 is higher than the bottom wall of the second receiving space 35, forming a stepped drop structure. This drop structure utilizes the natural force of gravity to allow coffee liquid to flow more smoothly from the first receiving space 34 into the second receiving space 35, reducing stagnation or accumulation of liquid during flow. This drop structure effectively avoids backflow or turbulence caused by reduced flow velocity or obstructed path, ensuring that the coffee liquid can be quickly diverted to the outlet 36 after flowing into the second receiving space 35. Due to the significantly improved smoothness of the liquid flow path, the coffee liquid can flow towards the outlet 36 at a more stable speed and direction, ensuring that the outflowing coffee liquid has a consistent and uniform flow rate.

[0036] In this embodiment, the first connection port 321 and the liquid outlet 36 are offset, that is, the first connection port 321 and the liquid outlet 36 are offset in the circumferential direction, which avoids the liquid flow from the first liquid receiving space 34 to the second liquid receiving space 35 directly impacting the liquid outlet 36. This can effectively reduce the impact force when the liquid flows, reduce liquid flow turbulence and splashing, and thus ensure that the liquid flows out from the liquid outlet 36 in a stable state.

[0037] The first enclosure 32 is provided with two first connection ports 321, which are spaced 180 degrees apart along the circumference of the first enclosure 32. It should be noted that the first enclosure 32 can be circular or elliptical. When the first enclosure 32 is circular, the two first connection ports 321 spaced 180 degrees apart along the circumference can be understood as two points located at opposite ends of the diameter of the circle, i.e., two points on the circumference are opposite to each other. In the case of an elliptical enclosure, the 180-degree circumferential spacing can have two interpretations: along the major axis: the two points are located at the two ends of the major axis of the ellipse, representing the two farthest points along the major axis; along the minor axis: the two points are located at the two ends of the minor axis of the ellipse, representing the two farthest points along the minor axis. This symmetrical layout of the two connection ports effectively balances the distribution of the liquid flow, avoiding uneven flow caused by concentrated flow from a single outlet, thus achieving a more uniform flow distribution effect. Combined with the stepped drop structure, the dual connection port design can make full use of the gravity and path guidance effect of the liquid during the flow process, so that the coffee liquid maintains a stable flow rate and is evenly distributed when flowing from the first liquid receiving space 34 to the second liquid receiving space 35.

[0038] The main body includes two liquid outlets 36; the two liquid outlets 36 are arranged 180 degrees apart circumferentially along the first enclosure wall 32; wherein the liquid outlets 36 and the first connection port 321 are arranged 90 degrees apart circumferentially along the first enclosure wall 32, realizing a symmetrical layout between the first connection port 321 and the liquid outlets 36. This design ensures that after the liquid flows from the first connection port 321 into the second liquid receiving space 35, it can flow to the adjacent liquid outlets 36 under equidistant conditions, thereby balancing the liquid flow pressure and avoiding liquid distribution deviations caused by uneven paths.

[0039] The bottom wall of the second receiving space 35 includes an inclined wall 351 connecting to the outlet 36. The height of the inclined wall 351 gradually decreases along the direction close to the outlet 36, allowing the coffee liquid to flow more quickly to the outlet 36 under the combined effects of gravity and the inclined angle. This design significantly reduces the residence time of the liquid in the second receiving space 35 and improves flow efficiency.

[0040] The second enclosure 33 is provided with a second connection port 331. When there is too much liquid in the second liquid receiving space 35, it can overflow to the outside of the second liquid receiving space 35 through the second connection port 331, serving as a temporary storage function. When the liquid flows out of the second liquid receiving space 35, it flows back into the second liquid receiving space 35 through the second connection port 331. The second connection port 331 is connected to the bottom wall of the second liquid receiving space 35; in this embodiment, the lower side of the first connection port 321 is flush with the bottom wall of the first liquid receiving space 34. The second connection port 331 is connected to the bottom wall of the second liquid receiving space 36, which helps to further optimize the flow path of the liquid during the discharge process. The liquid flow outside the second liquid receiving space 35 will not completely lose its flow velocity, and the liquid flow can flow to the outlet 36 inside the second liquid receiving space 35 under the action of gravity, thereby avoiding the liquid remaining outside the second liquid receiving space 35.

[0041] The upper side of the main body is concave and arc-shaped, with the first enclosure wall 32 and the second enclosure wall 33 formed on the upper side of the main body. The bottom wall of the first liquid receiving space 34 has a structure that is higher in the middle and lower on both sides. The first connection port 321 is located at the lower part of the bottom wall of the first liquid receiving space 34, which allows the liquid to be well guided when entering the first liquid receiving space 34. The stepped shape of the bottom wall of the first liquid receiving space 34, being higher in the middle and lower on both sides, effectively utilizes gravity, allowing the liquid to flow along the lower part when flowing into the space. The first connection port 321 is located at the lower part of the bottom wall, ensuring that the liquid can flow to the connection port in the shortest path, thereby reducing the residence time of the liquid in the first liquid receiving space 34, optimizing the liquid flow path, and improving the diversion effect. The concave arc-shaped structure allows the liquid to flow naturally along the curved surface, reducing liquid retention or flow resistance, ensuring that the coffee liquid can flow smoothly to the predetermined path, and improving flow efficiency.

[0042] The above description is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model by those skilled in the art within the scope of the technology disclosed in the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A buffer mechanism suitable for coffee brewing components, characterized in that, The body is arranged below a filter screen of the coffee brewing assembly; The body comprises a first enclosing wall forming a first liquid receiving space, and further comprises a liquid outlet arranged outside the first liquid receiving space; A top portion of the first enclosing wall abuts against an underside of the filter screen, and is arranged around a filter outlet of the filter screen, and the first enclosing wall is further provided with a first connecting port which is in communication with the liquid outlet.

2. A dampening mechanism for a coffee brewing assembly as defined in claim 1, characterized in that: The body further comprises a second enclosing wall arranged around the first enclosing wall, and a second liquid receiving space is formed between the first enclosing wall and the second enclosing wall; and the liquid outlet is arranged in the second liquid receiving space.

3. The buffer mechanism for the coffee brewing assembly according to claim 2, wherein: The first connecting port is connected to a bottom wall of the first liquid receiving space, and the bottom wall of the first liquid receiving space is higher than a bottom wall of the second liquid receiving space.

4. A dampening mechanism for a coffee brewing assembly as defined in claim 1, wherein: The first connecting port is staggered with the liquid outlet.

5. A dampening mechanism for a coffee brewing assembly as defined in claim 4, wherein: The first enclosing wall is provided with two first connecting ports which are arranged at an interval of 180 degrees along a circumference of the first enclosing wall.

6. A dampening mechanism for a coffee brewing assembly as defined in claim 5, wherein: The body comprises two liquid outlets; the two liquid outlets are arranged at an interval of 180 degrees along a circumference of the first enclosing wall; and the liquid outlet and the first connecting port are arranged at an interval of 90 degrees along the circumference of the first enclosing wall.

7. A dampening mechanism for a coffee brewing assembly as defined in claim 2, wherein: The second enclosing wall is provided with a second connecting port; the second connecting port is connected to a bottom wall of the second liquid receiving space; and the bottom wall of the second liquid receiving space comprises an inclined wall connected to the liquid outlet, and a height of the inclined wall gradually decreases along a direction close to the liquid outlet.

8. A dampening mechanism for a coffee brewing assembly as defined in claim 2, wherein: An upper side of the body is concave and arc-shaped, and the first enclosing wall and the second enclosing wall are formed on the upper side of the body; and a bottom wall of the first liquid receiving space is high in the middle and low at both sides, and the first connecting port is located at a low portion of the bottom wall of the first liquid receiving space.

9. A coffee brewing assembly, characterized by The coffee brewing assembly comprises a coffee brewing box, a filter screen and the buffer mechanism for the coffee brewing assembly according to any one of claims 1-8; The filter screen and the buffer mechanism are arranged in the coffee brewing box, and the coffee brewing box is used to be connected to a water outlet of an espresso machine to realize brewing and extraction.

10. A coffee maker characterized in that, The coffee brewing assembly comprises the coffee brewing box according to claim 9.

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