Cold and hot dual hydraulic brewing mechanism and coffee machine

Abstract

The utility model relates to coffee machine technical field discloses a cold and hot double hydraulic brewing mechanism and coffee machine, cold and hot double hydraulic brewing mechanism includes coffee mounting piece and movable frame, and the side of movable frame near coffee mounting piece is provided with sealing component, and coffee machine is provided with hot water channel and cold water channel, and cold water channel communicates with movable frame, and coffee mounting piece is provided with inner chamber, and hot water channel communicates with inner chamber, when extracting coffee liquid, cold water channel first passes in cold water, and the water pressure in cold water channel drives movable frame to move to one side of coffee mounting piece, when extracting is finished, hot water channel first stops passing in hot water, and cold water channel stops passing in cold water later. The utility model is provided with hot water channel and cold water channel, after extracting is finished, hot water channel first stops passing in hot water, sealing component keeps the sealed state of keeping down at this moment, prevents hot water from leaking out coffee capsule, avoids the problem that hot water is discharged after extracting is finished, guarantees the taste of coffee.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, and more specifically, to a hot and cold dual hydraulic brewing mechanism and a coffee machine. Background Technology

[0002] Some existing drawer-type coffee machines, including the main body and coffee drawer, have a hot water pipe and a hot water hydraulic piston on the main body. During use, hot water is supplied to the pipe, and the water pressure drives the hydraulic piston to press the coffee capsule inside the drawer, guiding the hot water into the capsule for extraction. However, this structure, which uses a hydraulic piston to press the coffee capsule, requires stopping the hot water supply after extraction. At this point, the hydraulic piston rises and resets, leaving the coffee drawer unsealed. Some residual hot water from the pipe continues to drain into the drawer (since it's unsealed, this water doesn't enter the capsule for extraction). When the coffee machine finishes extraction, it drains this water. If the user collects this water and drinks it, it dilutes the coffee, affecting its taste and resulting in a poor user experience. Utility Model Content

[0003] To address at least one of the aforementioned problems, this utility model provides a hot and cold dual hydraulic brewing mechanism suitable for installation on a coffee machine. The hot and cold dual hydraulic brewing mechanism includes a coffee mounting component and a movable frame movably mounted on the coffee machine. The movable frame is positioned to one side of the coffee mounting component, and a sealing component is provided on the side of the movable frame closest to the coffee mounting component. The coffee machine has a hot water channel and a cold water channel, with the cold water channel communicating with the movable frame. The coffee mounting component has an inner cavity, and the hot water channel communicates with the inner cavity. During coffee extraction, cold water is first introduced into the cold water channel. The water pressure in the cold water channel drives the movable frame to move towards one side of the coffee assembly, so that the sealing component abuts against the coffee extractor inside the cavity. Then, hot water is introduced into the coffee extractor through the hot water channel. When extraction is complete, the hot water channel stops supplying hot water first, and the cold water channel stops supplying cold water afterwards. This utility model is provided with a hot water channel and a cold water channel. After extraction is complete, the hot water channel stops supplying hot water first. At this time, the sealing component remains in a pressed-down sealing state to prevent hot water from leaking out of the coffee capsule, avoid the problem of hot water being discharged after extraction, and ensure the rich and mellow taste of the coffee.

[0004] Optionally, the movable frame is slidably mounted on the coffee machine, and the coffee machine is provided with a first elastic element for driving the movable frame to reset; when the extraction is completed, the first elastic element is used to drive the movable frame to reset toward the side away from the coffee extraction element, so that the sealing component is disengaged from the coffee extraction element.

[0005] Optionally, the coffee machine is provided with a sliding guide post, and the movable frame is provided with a sliding groove that slides with the sliding guide post; the first elastic element is a first compression spring that abuts against the coffee machine and the movable frame, and the first elastic element is sleeved on the outside of the sliding guide post.

[0006] Optionally, a pressure chamber communicating with the cold water channel is formed between the movable frame and the coffee machine, and the coffee mounting component is a coffee drawer.

[0007] Optionally, the movable frame is provided with a connecting cavity for connecting the hot water channel and the inner cavity.

[0008] Optionally, the movable frame is provided with a hollow guide post, the communicating cavity is formed inside the hollow guide post, and a first sealing ring is provided between the hollow guide post and the coffee machine.

[0009] Optionally, the movable frame is provided with a hollow needle, the tip of which is positioned towards the side of the coffee extraction unit. The needle is connected to the hot water channel. The sealing component is provided with an annular sealing strip, and the tip of the needle is placed inside the sealing strip. The coffee extraction unit includes a coffee capsule. When extracting coffee liquid, the needle pierces the coffee extraction unit and discharges hot water.

[0010] Optionally, the movable frame includes a frame body and a connecting cover connected together, and the sealing component is a sealing block pressed between the frame body and the connecting cover.

[0011] Optionally, a pressing guide post is slidably disposed on the movable frame, one end of the pressing guide post protruding outward from the side of the movable frame near the coffee extraction element, and a second compression spring abutting between the other end of the pressing guide post and the movable frame.

[0012] Optionally, it includes a hot and cold dual hydraulic brewing mechanism as described in any one of claims.

[0013] Compared to existing technologies, the hot and cold dual hydraulic brewing mechanism of this invention stops supplying hot water to the hot water channel after extraction. At this time, the sealing component remains in a depressed and sealed state to prevent hot water from leaking out of the coffee capsule, avoiding the problem of hot water being discharged after extraction and ensuring the rich and mellow taste of the coffee. During extraction, the elasticity of the second compression spring drives the pressure guide column to press the coffee extraction component, which further increases the downward pressure on the coffee extraction component, making it less prone to displacement during extraction, improving the stability of the extraction process, and enhancing the quality of the extracted coffee.

[0014] In addition, this utility model also provides a coffee machine, including the above-mentioned hot and cold dual hydraulic brewing mechanism. This coffee machine also has the beneficial effects of the above-mentioned hot and cold dual hydraulic brewing mechanism, which will not be described in detail here. Attached Figure Description

[0015] Figure 1 This is a perspective view of the hot and cold dual hydraulic brewing mechanism of this utility model;

[0016] Figure 2 This is a cross-sectional view of the hot and cold dual hydraulic brewing mechanism of this utility model;

[0017] Figure 3 for Figure 2 Enlarged view of section A;

[0018] Figure 4 This is a schematic diagram of the coffee mounting component of the cold and hot dual hydraulic brewing mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the movable frame of the hot and cold dual hydraulic brewing mechanism of this utility model;

[0020] The component names corresponding to the various labels in the figure are as follows: 1 is the coffee machine, 10 is the machine mounting bracket, 11 is the hot water channel, 12 is the cold water channel, 13 is the sliding guide post, 2 is the movable frame, 201 is the pressure chamber, 202 is the connecting chamber, 22 is the hollow guide post, 23 is the needle, 24 is the frame, 25 is the connecting cover, 26 is the pressing guide post, 27 is the second compression spring, 28 is the slide, 3 is the coffee mounting component, 301 is the inner cavity, 302 is the coffee extraction component, 4 is the sealing component, 41 is the sealing strip, 5 is the first elastic component, 61 is the first sealing ring, and 62 is the second sealing ring. Detailed Implementation

[0021] To make the above-mentioned objectives, 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.

[0022] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0023] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0024] See Figures 1-5This utility model provides a hot and cold dual hydraulic brewing mechanism suitable for installation on a coffee machine 1. The hot and cold dual hydraulic brewing mechanism includes a coffee mounting component 3 and a movable frame 2 movably mounted on the coffee machine 1. The machine body 1 includes a machine body mounting frame 10, and the movable frame 2 is movably mounted on the machine body mounting frame 10. The movable frame 2 is placed on one side of the coffee mounting component 3, and a sealing component 4 is provided on the side of the movable frame 2 near the coffee mounting component 3. The coffee machine 1 is provided with a hot water channel 11 and a cold water channel 12, and the cold water channel 12 communicates with the movable frame 2. The coffee mounting component 3 is provided with an inner cavity 301, and the hot water channel 11 communicates with the inner cavity 301. When extracting coffee liquid, cold water is first introduced into the cold water channel 12. The water pressure in the cold water channel 12 drives the movable frame 2 to move to one side of the coffee mounting component 3, thereby facilitating the sealing component. The component 4 abuts against the coffee extractor 302 inside the inner cavity 301, and then hot water is introduced into the coffee extractor 302 through the hot water channel 11. When the extraction is complete, the hot water channel 11 stops supplying hot water first, and the cold water channel 12 stops supplying cold water afterwards. This utility model is provided with a hot water channel and a cold water channel. After the extraction is complete, the hot water channel stops supplying hot water first. At this time, the sealing component remains in a pressed and sealed state to prevent hot water from leaking out of the coffee capsule, avoid the problem of hot water being discharged after extraction, and ensure the rich and mellow taste of coffee. In this utility model, the water pressure in the cold water channel 12 drives the sealing component 4 to press and seal the coffee extractor 302. Hot water is injected into the coffee extractor 302 through the hot water channel 11. The cold water in the cold water channel 12 will not enter the inner cavity 301, preventing this part of the water from being discharged and collected by the user.

[0025] See Figure 1 and Figure 2 The movable frame 2 is slidably mounted on the coffee machine 1. The coffee machine 1 is equipped with a first elastic element 5 for resetting the movable frame 2. When extraction is complete and the cold water channel 12 stops supplying cold water, the first elastic element 5 drives the movable frame 2 to reset away from the coffee extractor 302, so that the sealing component 4 disengages from the coffee extractor 302, allowing the coffee extractor 302 to be removed. In this embodiment, the coffee mounting component 3 is a coffee drawer. The sealing component 4 disengages from the coffee extractor 302 so that the coffee drawer can be pulled out to one side, facilitating the removal / replacement of the coffee extractor 302. See also... Figure 2 The coffee drawer is pulled out and disassembled to the left.

[0026] See Figure 1 and Figure 5 The coffee machine 1 has a sliding guide post 13 on the mounting bracket 10, and the movable frame 2 has a sliding groove 28 that slides with the sliding guide post 13, making the movable frame 2 slide more smoothly and steadily. The first elastic element 5 is a first compression spring that abuts between the coffee machine 1 and the movable frame 2. The first elastic element 5 is sleeved on the outside of the sliding guide post 13. The structure is simple and the production cost is low.

[0027] See Figure 1 and Figure 2 A pressure chamber 201, which is connected to the cold water channel 12, is formed between the movable frame 2 and the coffee machine 1. The coffee mounting part 3 is a coffee drawer. After cold water is introduced into the cold water channel 12, the pressure in the pressure chamber 201 increases, and this pressure drives the movable frame 2 to move downward. The coffee machine is equipped with a cold water supply unit connected to the cold water channel 12 and a hot water supply unit connected to the hot water channel 11. The cold water supply unit includes a water tank, a cold water pipe, and a first water pump connected between the water tank and the cold water channel 12. The hot water supply unit includes a water tank, a hot water pipe, and a second water pump connected between the water tank and the hot water channel 12. The hot water pipe is equipped with an electric heating element or other electric heating element for heating the water in the hot water pipe. The above-mentioned method of supplying cold and hot water by the water tank is existing technology and will not be described in detail here.

[0028] See Figures 1-4 The movable frame 2 is provided with a connecting cavity 202 for connecting the hot water channel 11 and the inner cavity 301, so that the hot water in the hot water channel 11 can flow from the connecting cavity 202 to the inner cavity 301, resulting in a compact structure. The movable frame 2 is provided with a hollow guide post 22, and the connecting cavity 202 is formed inside the hollow guide post 22. A first sealing ring 61 is provided between the hollow guide post 22 and the coffee machine 1 to prevent leakage of hot water in the connecting cavity 202 and ensure stable hot water discharge. A second sealing ring 62 is also provided between the movable frame 2 and the coffee machine 1 to further improve the sealing and prevent leakage between the movable frame 2 and the coffee machine 1. The movable frame 2 is provided with a hollow needle 23, with the tip of the needle 23 facing the side of the coffee extraction element 302. The needle 23 is connected to the hot water channel 11, allowing the needle 23 to discharge the hot water from the hot water channel 11. The sealing component 4 is provided with an annular sealing strip 41, and the tip of the needle 23 is placed inside the sealing strip 41 to prevent the hot water discharged from the lower end of the needle 23 from leaking to the outside of the sealing strip 41, thereby preventing the coffee machine from directly discharging this leaked hot water, ensuring reliable use. The coffee extraction component 302 includes a coffee capsule. When extracting coffee liquid, the needle 23 pierces into the coffee extraction component 302 and discharges hot water, allowing the hot water to be discharged into the coffee capsule to extract the coffee liquid, completing the coffee brewing process. After hot water is introduced into the hot water channel 11, the pressure in the hot water channel 11 increases, and this pressure forces the hot water to be discharged downwards from the lower end of the needle 23, ensuring smooth liquid discharge.

[0029] See Figures 1-3The movable frame 2 includes a frame body 24 and a connecting cover 25 connected together. The frame body 24 and the connecting cover 25 are fixed by bolts or other means. The sealing component 4 is a sealing block pressed between the frame body 24 and the connecting cover 25. The sealing component 4 is installed firmly and provides a stable seal. A pressing guide post 26 is slidably arranged on the movable frame 2. One end of the pressing guide post 26 protrudes outward from the side of the movable frame 2 near the coffee extraction component 302. The other end of the pressing guide post 26 abuts against the movable frame 2 with a second compression spring 27. During extraction, the elastic force of the second compression spring 27 drives the pressing guide post 26 to press the coffee extraction component 302, which further increases the downward pressure on the coffee extraction component 302, making it less likely for the coffee extraction component 302 to shift during extraction, improving the stability of the extraction process and improving the quality of the extracted coffee.

[0030] The hot and cold dual hydraulic brewing mechanism of this invention stops supplying hot water to the hot water channel after extraction is complete. At this time, the sealing component remains in a depressed and sealed state to prevent hot water from leaking out of the coffee capsule, thus avoiding the problem of hot water being discharged after extraction and ensuring the rich and mellow taste of the coffee. During extraction, the elasticity of the second compression spring drives the pressure guide column to press the coffee extraction component, which further increases the downward pressure on the coffee extraction component, making it less likely for the coffee extraction component to shift during extraction, improving the stability of the extraction process and enhancing the quality of the extracted coffee.

[0031] In addition, this utility model also provides a coffee machine, including the above-mentioned hot and cold dual hydraulic brewing mechanism. This coffee machine also has the beneficial effects of the above-mentioned hot and cold dual hydraulic brewing mechanism, which will not be described in detail here.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A hot and cold dual hydraulic brewing mechanism, suitable for installation on a coffee machine (1), characterized in that, The hot and cold dual hydraulic brewing mechanism includes a coffee mounting component (3) and a movable frame (2) movably mounted on the coffee machine (1). The movable frame (2) is located on one side of the coffee mounting component (3). A sealing component (4) is provided on the side of the movable frame (2) close to the coffee mounting component (3). The coffee machine (1) is provided with a hot water channel (11) and a cold water channel (12). The cold water channel (12) is connected to the movable frame (2). The coffee mounting component (3) is provided with an inner cavity (301). The hot water channel (11) is connected to the inner cavity (301).

2. The hot and cold dual hydraulic brewing mechanism according to claim 1, characterized in that, The movable frame (2) is slidably mounted on the coffee machine (1). The coffee machine (1) is provided with a first elastic element (5) for driving the movable frame (2) to reset. When the extraction is completed, the first elastic element (5) is used to drive the movable frame (2) to reset towards the side away from the coffee extraction element (302) so that the sealing component (4) is disengaged from the coffee extraction element (302).

3. The hot and cold dual hydraulic brewing mechanism according to claim 2, characterized in that, The coffee machine (1) is provided with a sliding guide post (13), and the movable frame (2) is provided with a sliding groove (28) that slides with the sliding guide post (13); the first elastic element (5) is a first compression spring that abuts against the coffee machine (1) and the movable frame (2), and the first elastic element (5) is sleeved on the outside of the sliding guide post (13).

4. The hot and cold dual hydraulic brewing mechanism according to claim 1, characterized in that, A pressure chamber (201) communicating with the cold water channel (12) is formed between the movable frame (2) and the coffee machine (1), and the coffee mounting component (3) is a coffee drawer.

5. The hot and cold dual hydraulic brewing mechanism according to claim 1, characterized in that, The movable frame (2) is provided with a connecting cavity (202) for connecting the hot water channel (11) and the inner cavity (301).

6. The hot and cold dual hydraulic brewing mechanism according to claim 5, characterized in that, The movable frame (2) is provided with a hollow guide post (22), the connecting cavity (202) is formed inside the hollow guide post (22), and a first sealing ring (61) is provided between the hollow guide post (22) and the coffee machine (1).

7. The hot and cold dual hydraulic brewing mechanism according to claim 5, characterized in that, The movable frame (2) is provided with a hollow needle (23), the tip of the needle (23) is positioned on one side of the coffee extractor (302), the needle (23) is connected to the hot water channel (11), the sealing component (4) is provided with an annular sealing strip (41), and the tip of the needle (23) is placed inside the sealing strip (41); the coffee extractor (302) includes a coffee capsule; when extracting coffee liquid, the needle (23) pierces into the coffee extractor (302) and discharges hot water.

8. The hot and cold dual hydraulic brewing mechanism according to claim 1, characterized in that, The movable frame (2) includes a frame body (24) and a connecting cover (25) connected together, and the sealing component (4) is a sealing block pressed between the frame body (24) and the connecting cover (25).

9. The hot and cold dual hydraulic brewing mechanism according to any one of claims 1-8, characterized in that, A pressing guide post (26) is slidably disposed on the movable frame (2). One end of the pressing guide post (26) protrudes outward from the side of the movable frame (2) near the coffee extraction unit (302), and the other end of the pressing guide post (26) abuts against the movable frame (2) with a second compression spring (27).

10. A coffee machine, characterized in that, Includes the hot and cold dual hydraulic brewing mechanism as described in any one of claims 1-9.

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