Brewing structure and beverage machine

Abstract

This invention discloses a brewing structure and a beverage machine. The brewing structure includes a brewing cylinder, an upper piston structure, a lower piston structure, and a uniform mixing structure. The upper and lower piston structures are respectively located at both ends of the brewing cylinder along its axial direction. At least one of the upper and lower piston structures is movable, allowing them to move closer to or further away from each other. The uniform mixing structure has a first working state extending into the brewing cylinder, and in this first working state, it ensures that the powder is evenly distributed on the lower piston structure. The technical solution provided by this invention allows the powder to be evenly distributed within the brewing cylinder under the action of the uniform mixing structure. When the upper and lower piston structures press the powder together, the resulting powder cake has a more uniform thickness. Consequently, during extraction, the contact between hot water and the powder cake is more consistent, resulting in better extraction quality, a better-tasting beverage, and an enhanced user experience.

Description

Technical Field

[0001] This invention relates to the technical field of beverage preparation equipment, specifically to a brewing structure and a beverage machine. Background Technology

[0002] Beverage machines, such as coffee machines, extract coffee through a brewing tank. During brewing, the brewing tank receives freshly ground coffee at the powder receiving position and pours hot water into the brewing position, ensuring full contact between the hot water and the coffee grounds. The brewing tank and piston assembly pressurize and extract the coffee grounds at high temperature. In this process, soluble substances in the coffee grounds, such as caffeine, sugars, fats, and acids, dissolve into the water, improving the coffee's flavor. In contrast, in a freshly ground coffee machine, after grinding the coffee beans, the grounds are transferred to the brewing tank. During this process, the coffee grounds are randomly distributed within the tank, not evenly spread on the piston plate of the lower piston structure. Especially when the coffee grounds fall from a height, they can form mounds. This uneven distribution of coffee grounds, when compressed during brewing, can lead to channeling effects, affecting the extraction quality. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the main objective of this invention is to provide a brewing structure and beverage machine, which aims to solve the problem that in traditional brewing structures, uneven distribution of powder in the brewing tank can lead to channeling effects and affect the extraction quality.

[0004] To achieve the above objectives, the present invention proposes a brewing structure comprising:

[0005] Brewing tank;

[0006] An upper piston structure and a lower piston structure are respectively located at both ends of the brewing cylinder along its axial direction. At least one of the upper piston structure and the lower piston structure is movably arranged so that the upper piston structure and the lower piston structure can move closer to each other and further away from each other within the brewing cylinder.

[0007] The uniform material structure has a first working state that extends into the brewing tank, and when in the first working state, the uniform material structure can make the powder evenly spread on the lower piston structure.

[0008] Optionally, the uniform material structure is disposed on the lower piston structure; and / or,

[0009] The uniform material structure is disposed on the upper piston structure; or...

[0010] The uniform material structure is located on the brewing tank.

[0011] Optionally, the material distribution structure is disposed on the lower piston structure, and the lower piston structure is rotatable relative to the brewing cylinder; or,

[0012] The uniform material structure can rotate relative to the lower piston structure.

[0013] Optionally, the uniform material structure is disposed on the upper piston structure, and the upper piston structure is rotatable relative to the brewing cylinder; or,

[0014] The uniform material structure can rotate relative to the upper piston structure.

[0015] Optionally, a brewing space is formed between the upper piston structure and the lower piston structure;

[0016] When in the first working state, at least a portion of the uniform material structure extends into the brewing space; the uniform material structure also has a second working state in which it is outside the brewing space.

[0017] Optionally, when in the first working state, the upper piston structure and the lower piston structure are in a position far apart from each other; when switching from the first working state to the second working state, the upper piston structure and the lower piston structure are in a position close to each other.

[0018] Optionally, the uniform material structure has a telescopic stroke.

[0019] Optionally, a brewing space is formed between the upper piston structure and the lower piston structure;

[0020] The material distribution structure includes a plurality of material distribution needles, which have a first working state in which at least part of them extend into the brewing space, and a second working state in which they retract outside the brewing space.

[0021] Optionally, when the upper piston structure and the lower piston structure are close to each other, the feeding needle can switch from the first working state to the second working state.

[0022] Optionally, the lower piston structure is rotatably mounted on the brewing cylinder, and a plurality of the feeding needles are mounted on the lower piston structure.

[0023] Optionally, the lower piston structure includes a lower piston rod and a lower piston disc disposed at one end of the lower piston rod, and a plurality of the feeding needles are disposed on the lower piston disc.

[0024] Optionally, the lower piston structure further includes a lower receiving plate and a lower support rod connected to the lower receiving plate. The lower receiving plate is spaced in the middle of the brewing chamber, and the lower receiving plate is provided with a plurality of first through holes, which are respectively arranged in correspondence with a plurality of the feeding needles. The lower support rod is connected to the brewing cylinder.

[0025] When in the first working state, the multiple material distribution needles are inserted into the multiple first through holes and protrude from the side of the lower receiving plate facing the upper piston structure; when in the second working state, the multiple material distribution needles are retracted into the multiple first through holes.

[0026] Optionally, the lower piston structure further includes a first elastic telescopic member, which connects the lower piston disc and the lower support plate;

[0027] Under the elastic restoring force of the first elastic telescopic member, the multiple material feeding needles can automatically switch from the first working state to the second working state.

[0028] Optionally, the upper piston structure is rotatably mounted on the brewing cylinder, and a plurality of the feeding needles are mounted on the upper piston structure.

[0029] Optionally, the upper piston structure includes an upper piston rod, an upper piston disc disposed at one end of the upper piston rod, an upper receiving plate, and an upper support rod connected to the upper receiving plate. The upper piston disc is located below the upper receiving plate and can move relative to the upper receiving plate. A plurality of material leveling needles are disposed on the upper receiving plate. The upper piston disc is provided with a plurality of second through holes, and the plurality of second through holes are provided in a one-to-one correspondence with the plurality of material leveling needles.

[0030] When in the first working state, the upper piston plate and the upper support plate are in contact, and the plurality of material distribution needles are correspondingly inserted into the plurality of second through holes and protrude from the side of the upper piston plate facing the lower piston structure; when in the second working state, the upper piston plate is away from the upper support plate, and the plurality of material distribution needles are correspondingly retracted into the plurality of second through holes.

[0031] Optionally, the upper piston structure further includes a second elastic telescopic member, which connects the upper support plate and the upper piston disc;

[0032] Under the elastic restoring force of the second elastic telescopic member, the multiple material feeding needles can automatically switch from the first working state to the second working state.

[0033] The present invention also provides a brewing structure, comprising:

[0034] The brewing container must have at least one opening that opens outwards;

[0035] An upper piston structure and a lower piston structure, at least one of which can be disengaged from the opening of the brewing cylinder, the upper piston structure and / or the lower piston structure having a moving stroke that is close to each other and far apart within the brewing cylinder;

[0036] A uniform material distribution structure is provided at least on the one with the larger stroke of the upper piston structure and the lower piston structure, and at least a portion of the uniform material distribution structure can extend into the brewing tank to be located between the upper piston structure and the lower piston structure.

[0037] Optionally, when the upper piston structure and the lower piston structure are arranged opposite to each other in the brewing tank, a brewing space is formed between them;

[0038] The upper piston structure has a powder-receiving state detached from the brewing cylinder, and when in the powder-receiving state, the material-equalizing structure is located outside the brewing space.

[0039] Optionally, after the powder is collected and the upper piston structure moves to the opening, at least a portion of the uniform material structure can extend into the brewing space and continuously increase the length extending into the brewing space.

[0040] The present invention also provides a brewing structure, comprising:

[0041] Brewing tank;

[0042] At least one piston structure is movably disposed inside the brewing tank and forms a brewing space with the brewing tank;

[0043] A material distribution structure is provided in at least one of the piston structures and includes a material distribution needle that can pass through the corresponding piston structure and extend into the brewing space;

[0044] The piston structure has a first working state and a second working state. The feeding needle extends into the brewing space in the first working state and exits the brewing space in the second working state.

[0045] Optionally, the piston structure is provided in two parts, including an upper piston structure and a lower piston structure arranged opposite to each other. When the upper piston structure and the lower piston structure are in a second working state where they are close to each other, the feeding needle does not extend into the brewing space.

[0046] Optionally, the piston structure is provided in two parts, including an upper piston structure and a lower piston structure arranged opposite to each other. When the upper piston structure and the lower piston structure are in a first working state where they are relatively far apart, the feeding needle extends at least partially into the brewing space.

[0047] Optionally, at least one of the piston structures is provided with an opening through which the feeding needle passes. In the second working state, the feeding needle retracts into the opening of the piston structure and seals the opening.

[0048] Optionally, each of the piston structures includes a piston rod and a piston disc disposed at the end of the piston rod, the piston disc being disposed at the end of the piston rod and at least partially extending into the brewing tank;

[0049] The piston rod has a reciprocating stroke along the axial direction of the brewing cylinder and a rotating stroke along its central axis. The material leveling structure is disposed on the piston disc. The movement of the piston rod causes the piston disc and the material leveling structure to move together.

[0050] Optionally, at least one of the piston structures is configured as a lower piston structure, and the material leveling structure is disposed on the lower piston structure, wherein the lower piston structure moves back and forth along the axial direction of the brewing cylinder, which can drive the material leveling structure to rotate in both directions.

[0051] Optionally, the dispensing needle extends axially into the brewing space along the brewing cylinder, and the length of the dispensing needle extending into the brewing space is greater than 1 / 3 and less than 2 / 3 of the length of the brewing cylinder; and / or,

[0052] The width of the area occupied by the uniform feeding needle in the brewing space is greater than 1 / 2 of the width of the brewing space.

[0053] A beverage machine comprising the aforementioned brewing structure.

[0054] The technical solution provided by this invention has the following beneficial effects:

[0055] The brewing structure provided by this invention includes a brewing cylinder, an upper piston structure, a lower piston structure, and a uniform mixing structure. The upper and lower piston structures are respectively located at both ends of the brewing cylinder along its axial direction, allowing them to collectively enclose a brewing space. This brewing space can accommodate powder. At least one of the upper and lower piston structures is movable, allowing them to approach or move away from each other. When they approach, the powder can be pressurized and extracted. The uniform mixing structure extends into the brewing cylinder, ensuring that the powder is evenly distributed within the cylinder. When the upper and lower piston structures press the powder together, the resulting powder cake has a more uniform thickness. Consequently, during extraction, the contact between hot water and the powder cake is more consistent, resulting in better extraction quality, a better-tasting beverage, and an enhanced user experience. Attached Figure Description

[0056] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0057] Figure 1 This is a schematic diagram of an embodiment of the brewing structure provided by the present invention (in the second working state, and the uniform material structure is not stirred);

[0058] Figure 2 for Figure 1 A schematic diagram of the brewing structure described above (in the first working state, and the uniform material structure is not being stirred);

[0059] Figure 3 for Figure 1 A schematic diagram of the brewing structure described above (in the first working state, and the uniform material structure is stirring);

[0060] Figure 4 for Figure 1 A schematic diagram of the brewing structure described above (in the second working state and after pressing is completed);

[0061] Figure 5 for Figure 1 A schematic diagram of the structure described above (for receiving materials);

[0062] Figure 6 This is a schematic diagram of another embodiment of the brewing structure provided by the present invention (in the first working state, and the uniform material structure is not being stirred).

[0063] Explanation of icon numbers:

[0064] 100-Brewing structure; 1-Brewing cylinder; 2-Upper piston structure; 21-Upper piston rod; 22-Upper piston disc; 23-Upper receiving plate; 3-Lower piston structure; 31-Lower piston rod; 32-Lower piston disc; 33-Lower receiving plate; 4-Particle distribution structure; 41-Particle distribution needle; 200-Coffee powder.

[0065] The realization of the objective of this invention, its functional characteristics and excellent effects will be further explained below in conjunction with specific embodiments and accompanying drawings. Detailed Implementation

[0066] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0067] It should be noted that if the embodiments of the present invention involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0068] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the 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 invention.

[0069] This invention provides a brewing structure 100 suitable for beverage machines. The brewing structure 100 brews and extracts powdered ingredients to obtain a beverage. The beverage machine can be a coffee machine, a soy milk maker, a juicer, etc. For ease of explanation, the following description uses a coffee machine as an example; other devices can be adapted accordingly.

[0070] Specifically, please refer to Figures 1 to 3 In this embodiment, the brewing structure 100 includes a brewing cylinder 1, an upper piston structure 2, a lower piston structure 3, and a uniform material structure 4. The upper piston structure 2 and the lower piston structure 3 are respectively disposed at both ends of the brewing cylinder 1 along its axial direction. At least one of the upper piston structure 2 and the lower piston structure 3 can be movably disposed within the brewing cylinder 1, so that the upper piston structure 2 and the lower piston structure 3 can move closer to each other and further away from each other within the brewing cylinder 1. The uniform material structure 4 has a first working state that extends into the brewing cylinder 1. When in the first working state, the uniform material structure 4 can make the powder accumulated on the lower piston structure 3 evenly spread on the lower piston structure 3.

[0071] In this embodiment, the upper piston structure 2 and the lower piston structure 3 are respectively located at both ends of the brewing cylinder 1 along its axial direction, so that the upper piston structure 2, the lower piston structure 3, and the brewing cylinder 1 can jointly enclose a brewing space, in which powder can be contained. Moreover, at least one of the upper piston structure 2 and the lower piston structure 3 is movable, so that the upper piston structure 2 and the lower piston structure 3 can approach each other and move away from each other. When they approach each other, the powder can be pressurized and extracted. Furthermore, the uniform material structure 4 extends into the brewing cylinder 1, and under the action of the uniform material structure 4, the powder can be evenly and loosely spread on the lower piston structure 3 in the brewing cylinder 1. When the upper piston structure 2 and the lower piston structure 3 press the powder together, the thickness of the powder cake is more uniform. As a result, during extraction, the contact effect between hot water and the powder cake is more consistent, thus the extraction quality is better, the taste of the beverage is better, and the user experience is improved.

[0072] The brewing cylinder 1 is roughly cylindrical with openings at both ends. When the brewing structure 100 is in normal use, the axial direction of the brewing cylinder 1 is vertical. The two openings of the brewing cylinder 1 are respectively facing upward and downward. The upper piston structure 2 is correspondingly located at the upper opening of the brewing cylinder 1, and the lower piston structure 3 is correspondingly located at the lower opening of the brewing cylinder 1. By moving at least one of the upper piston structure 2 and the lower piston structure 3, the brewing cylinder 1 can be opened, allowing coffee powder 200 to be added into the brewing cylinder 1.

[0073] Preferably, the upper piston structure 2 can be detached from the upper opening of the brewing cylinder 1, so that the coffee powder 200 can fall directly into the brewing cylinder 1 through the upper opening by gravity. The lower piston structure 3 can be set to be detached from or not detached from the brewing cylinder 1 according to technical requirements.

[0074] Preferably, both the upper piston structure 2 and the lower piston structure 3 are movably arranged so as to be able to move relative to each other and in opposite directions along the axial direction of the brewing cylinder 1. During operation, the brewing structure 100 combines... Figure 5 As shown, the upper piston structure 2 is first moved out of the brewing cylinder 1, opening the upper end of the brewing cylinder 1. At this time, the brewing cylinder 1 can hold coffee powder 200. After the coffee powder 200 is collected, the upper piston structure 2 is moved back to reseal the upper opening of the brewing cylinder 1. Then, the coffee powder 200 is stirred by the uniform mixing structure 4, so that the coffee powder 200 can be evenly spread on the lower piston structure 3. Then, the lower piston structure 3 and the upper piston structure 2 are moved simultaneously or sequentially, so that the two piston structures can come closer to each other and press the coffee powder 200 together, making the formed coffee cake more uniform.

[0075] In one embodiment, combined with Figures 1 to 4As shown, the uniform distribution structure 4 can be disposed on the lower piston structure 3. The movement of the uniform distribution structure 4 agitates the coffee powder 200 falling onto the lower piston structure 3, resulting in a uniform and even distribution of the coffee powder 200. In another embodiment, as... Figure 6 As shown, the uniform distribution structure 4 can also be disposed on the upper piston structure 2. When the upper piston structure 2 moves closer to the lower piston structure 3, the uniform distribution structure 4 agitates the coffee powder 200 on the lower piston structure 3, thus ensuring that the coffee powder 200 is evenly distributed on the lower piston structure 3. Alternatively, in another embodiment, the uniform distribution structure 4 can be evenly disposed on both the upper piston structure 2 and the lower piston structure 3. The uniform distribution of the coffee powder 200 is achieved through the coordinated movement of the two uniform distribution structures 4.

[0076] In another embodiment, the uniform distribution structure 4 may be disposed on the brewing tank 1. For example, the uniform distribution structure 4 may be disposed on the peripheral side wall of the brewing tank 1. By extending and retracting and / or rotating and / or oscillating, the uniform distribution structure 4 can push the coffee powder 200 in the brewing tank 1 to move, so that the coffee powder 200 is evenly distributed in the brewing tank 1.

[0077] When the uniform material structure 4 is placed on the lower piston structure 3, the lower piston structure 3 can rotate relative to the brewing cylinder 1. The rotation of the lower piston structure 3 drives the uniform material structure 4 to rotate together, thereby stirring the coffee powder 200 and making the coffee powder 200 more uniform in the brewing cylinder 1.

[0078] In another embodiment, when the uniform material structure 4 is disposed on the upper piston structure 2, the upper piston structure 2 can rotate relative to the brewing cylinder 1. The rotation of the upper piston structure 2 drives the uniform material structure 4 to rotate together, thereby stirring the coffee powder 200 and making the coffee powder 200 more uniform in the brewing cylinder 1.

[0079] Combination Figures 1 to 3 As shown, before the upper piston structure 2 and the lower piston structure 3 compress the coffee powder 200, the upper piston structure 2 and the lower piston structure 3 are spaced apart in the vertical direction inside the brewing cylinder 1, so that a brewing space is formed between the upper piston structure 2 and the lower piston structure 3; when the coffee powder 200 falls into the brewing cylinder and is in the powder receiving state, the uniform material structure 4 can selectively extend at least part into the brewing space or not extend into the brewing space at all; in the first working state, at least part of the uniform material structure 4 extends into the brewing space and continuously increases the length of extension into the brewing cylinder; the uniform material structure 4 also has a second working state outside the brewing space. In the second working state, the uniform material structure 4 will not affect the compression effect of the upper piston structure 2 and the lower piston structure 3, so that the coffee powder cake is more uniformly compressed.

[0080] Furthermore, in the first working state, the upper piston structure 2 and the lower piston structure 3 are positioned far apart from each other, allowing the material leveling structure 4 sufficient stroke space for material leveling. Combined with... Figure 4 As shown, when switching from the first working state to the second working state, the upper piston structure 2 and the lower piston structure 3 are in a position close to each other, so that when pressing coffee powder 200, the upper piston structure 2 and the lower piston structure 3 can be closer together, thus achieving a better pressing effect.

[0081] It is understandable that the uniform distribution structure 4 can be not only positioned in various ways, but also has many specific configuration forms. For example, the uniform distribution structure 4 can be rotated inside the brewing tank 1, or it can be arranged to move back and forth in a straight line, so as to extend into and exit the brewing space during rotation. Alternatively, the uniform distribution structure 4 can be oscillating to repeatedly agitate the coffee powder 200, so that the coffee powder 200 is evenly distributed inside the brewing tank 1.

[0082] In one embodiment, the uniform distribution structure 4 has a telescopic stroke. Specifically, the uniform distribution structure 4 includes a uniform distribution needle 41 that is telescopically disposed on the upper piston structure 2 or the lower piston structure 3. The uniform distribution needle 41 has a first working state in which at least part of it extends into the brewing space, and a second working state in which it retracts outside the brewing space. In the first working state, the uniform distribution needle 41 is extended, and at least part of the uniform distribution needle 41 is located between the lower piston structure 3 and the upper piston structure 2. By driving the upper piston structure 2 or the lower piston structure 3 to rotate, the uniform distribution needle 41 is driven to rotate. The rotation of the uniform distribution needle 41 stirs the coffee powder 200, making the coffee powder 200 more evenly distributed in the brewing tank 1.

[0083] Preferably, each uniform needle 41 may include multiple syringe segments, which are sequentially connected. Along the axial direction of the brewing cylinder 1 and between two adjacent syringe segments, the upper syringe segment is sleeved on the inner side of the lower syringe segment. The extension and retraction of the uniform needle 41 can be achieved by adjusting the amount of connection between the multiple syringe segments.

[0084] More preferably, multiple uniform dispensing needles 41 are provided, and the multiple uniform dispensing needles 41 are arranged at intervals. Each uniform dispensing needle 41 is relatively thin and extends along the axial direction of the brewing cylinder 1. The multiple uniform dispensing needles 41 are evenly distributed on the lower piston structure 3. When the lower piston structure 3 rotates relative to the brewing cylinder 1, the multiple uniform dispensing needles 41 simultaneously stir the coffee powder, allowing the coffee powder 200 to pass evenly between the multiple uniform dispensing needles 41, resulting in better dispensing effect and higher dispensing efficiency.

[0085] It is understandable that the material distribution needle 41 can extend and retract under the driving action of the driving component, or the material distribution needle 41 can passively extend and retract under the action of external force or other components.

[0086] In another embodiment, the material leveling needle 41 may not be telescopic, but can be moved by other components to achieve the switching between the two states. Specifically, when the upper piston structure 2 and the lower piston structure 3 approach each other, the material leveling needle 41 can switch from the first working state to the second working state. That is, when the material leveling needle 41 is located on the lower piston structure 3, as the distance between the upper piston structure 2 and the lower piston structure 3 gradually decreases, the material leveling needle 41 is driven to move under the pressing action of the upper piston structure 2, so as to retract into the lower piston structure 3. When the material leveling needle 41 is located on the upper piston structure 2, as the distance between the upper piston structure 2 and the lower piston structure 3 gradually decreases, the material leveling needle 41 is driven to move under the pressing action of the lower piston structure 3, so as to retract into the upper piston structure 2.

[0087] Specifically, for the lower piston structure 3, combined with Figures 1 to 3 As shown, the lower piston structure 3 may include a lower piston rod 31 and a lower piston disc 32 disposed at one end of the lower piston rod 31, with a plurality of feeding needles 41 disposed on the lower piston disc 32. The lower piston structure 3 also includes a lower receiving plate 33 and a lower support rod connected to the lower receiving plate 33. The lower receiving plate 33 is spaced in the middle of the brewing cylinder 1, and the lower receiving plate 33 is provided with a plurality of first through holes, each of which corresponds to a plurality of feeding needles 41. The lower support rod is connected to the brewing cylinder 1. In the first working state, the plurality of feeding needles 41 are inserted into the plurality of first through holes and protrude from the side of the lower receiving plate 33 facing the upper piston structure 2; in the second working state, the plurality of feeding needles 41 are retracted into the plurality of first through holes. The shape of the lower piston disc 32 is adapted to the inner cavity shape of the brewing cylinder 1, so that the periphery of the lower piston disc 32 is in close contact with the inner wall of the brewing cylinder 1 to avoid leakage. The lower piston rod 31 is connected to the middle of the lower piston disc 32 and is coaxially arranged with the brewing cylinder 1. At the same time, the feeding needle 41 also blocks the first through hole in the first through hole, thereby preventing liquid from flowing out of the first through hole.

[0088] Furthermore, the lower piston structure 3 also includes a first elastic telescopic member, which connects the lower piston disc 32 and the lower support plate 33; under the action of the elastic restoring force of the first elastic telescopic member, the multiple feeding needles 41 can automatically switch from the first working state to the second working state. The first elastic telescopic member can be configured as a telescopic spring. In the second working state, the lower piston disc 32 is located near the lower opening of the brewing cylinder 1, and the first elastic telescopic member is in a naturally extended state. When the lower piston rod 31 is moved by an external force or a lower drive mechanism, so that the lower piston disc 32 can move towards the lower receiving plate 33, the first elastic telescopic member is gradually compressed, and multiple feeding needles 41 on the lower piston disc 32 gradually extend out from multiple first through holes on the lower receiving plate 33 to enter the brewing space and enter the first working state, thereby stirring the coffee powder 200 located in the brewing space. When the stirring is completed, and the external force or the lower drive mechanism removes the force applied to the lower piston rod 31, under the action of the elastic restoring force of the first elastic telescopic member, the lower piston disc 32 and the lower piston rod 31 can automatically move downward to return to the second working state.

[0089] In another embodiment, the upper piston structure 2 is rotatably mounted on the brewing cylinder 1. When multiple feeding needles 41 are mounted on the upper piston structure 2, preferably, in combination with... Figure 6 As shown, the upper piston structure 2 includes an upper piston rod 21, an upper piston disc 22 disposed at one end of the upper piston rod 21, an upper support plate 23, and an upper support rod connected to the upper support plate 23. The upper piston disc 22 is located below the upper support plate 23 and can move relative to the upper support plate 23. A plurality of material distribution needles 41 are disposed on the upper support plate 23. The upper piston disc 22 is provided with a plurality of second through holes, and the plurality of second through holes are arranged one-to-one with the plurality of material distribution needles 41. In the first working state, the upper piston disc 22 and the upper support plate 23 are in contact, and the plurality of material distribution needles 41 are inserted one-to-one through the plurality of second through holes and protrude from the side of the upper piston disc 22 facing the lower piston structure 3. In the second working state, the upper piston disc 22 is moved away from the upper support plate 23, and the plurality of material distribution needles 41 are retracted one-to-one into the plurality of second through holes. The shape of the upper piston disc 22 is adapted to the inner cavity shape of the brewing cylinder 1, so that the periphery of the upper piston disc 22 is in close contact with the inner wall of the brewing cylinder 1 to avoid leakage. The upper piston rod 21 is connected to the middle of the upper piston disc 22 and is coaxially arranged with the lower piston rod 31 and the brewing cylinder 1.

[0090] Furthermore, the upper piston structure 2 also includes a second elastic telescopic member, which connects the upper support plate 23 and the upper piston disc 22. Under the elastic restoring force of the second elastic telescopic member, the multiple feeding needles 41 can automatically switch from the first working state to the second working state. The second elastic telescopic member can be configured as a telescopic spring. In the first working state, the upper piston disc 22 is located close to the upper support plate 23, and the second elastic telescopic member is in a naturally extended state. When the upper piston rod 21 is moved by an external force or the upper drive mechanism, so that the upper piston disc 22 can move towards the direction close to the lower piston disc 32 to press the coffee powder 200, the second elastic telescopic member is gradually stretched, and the multiple feeding needles 41 on the upper support plate 23 gradually retract into the multiple second through holes on the upper piston disc 22, so as to be in the second working state. After the pressing is completed, and the external force or the upper drive mechanism removes the force applied to the upper piston rod 21, the upper piston disc 22 moves upward under the elastic restoring force of the second elastic telescopic member to return to the position of adhering to the upper support plate 23.

[0091] The present invention also provides a brewing structure 100, which includes a brewing cylinder 1, an upper piston structure 2, a lower piston structure 3, and a uniform feeding structure 4. It should be noted that the brewing cylinder 1, upper piston structure 2, lower piston structure 3, and uniform feeding structure 4 in this specific embodiment can be the same as those in the above-described specific embodiments, or they can be different from those in the above-described specific embodiments. Specifically, in this embodiment, the brewing cylinder 1 has at least one outwardly open opening; at least one of the upper piston structure 2 and the lower piston structure 3 can detach from the opening of the brewing cylinder 1, and the upper piston structure 2 and / or the lower piston structure 3 have adjacent and distancing travel strokes within the brewing cylinder 1; the uniform feeding structure 4 is at least located on the upper piston structure 2 and the lower piston structure 3 with the larger travel stroke, and at least a portion of the uniform feeding structure 4 can extend into the brewing cylinder 1 to be located between the upper piston structure 2 and the lower piston structure 3. In this embodiment, the material distribution structure 4 is set on the piston structure with a large stroke range. The material distribution structure 4 has sufficient room to move, which can better improve the material distribution effect.

[0092] Preferably, when the brewing cylinder 1 is oriented vertically, its opening faces upwards, and the upper piston structure 2 is in a powder-receiving state detached from the opening of the brewing cylinder 1. This allows the coffee powder 200 to fall directly into the brewing cylinder 1 through the upper opening by gravity. Furthermore, in the powder-receiving state, the evenly distributing structure 4 can partially extend into the brewing space or remain outside it. The lower piston structure 3 can be configured to be detached from or remain detached from the brewing cylinder 1, depending on technical requirements.

[0093] Furthermore, after the coffee powder is collected and the upper piston structure 2 moves to the opening, at least a portion of the uniform mixing structure 4 extends into the brewing space and continuously increases its length into the brewing cylinder space, so that the uniform mixing structure 4 can move every piece of coffee powder 200 when rotating, resulting in better uniform mixing. After the uniform mixing structure 4 has completely moved into place, the uniform mixing structure 4 is controlled to stir for a certain period of time or the distribution of coffee powder 200 in the brewing cylinder 1 is checked, and then the uniform mixing structure 4 is controlled to move out of the brewing space, and then the pressing operation is performed by moving the upper piston structure 2 and the lower piston structure 3.

[0094] In one embodiment, the brewing structure 100 may further include a control device and a detection device. The control device, the detection device, and the drive mechanism that drives the piston structure to move are all electrically connected. The detection device is used to detect the distribution state of the coffee powder 200. For example, it acquires image information of the coffee powder 200 on the lower piston structure 3 and transmits the image information to the control device. The control device determines whether the distribution state of the coffee powder 200 is uniform. If it is uniform, it controls the upper piston structure 2 and / or the lower piston structure 3 to move to perform a pressing operation. If it is not uniform, it controls the even distribution structure 4 to continue working until the coffee powder 200 is evenly distributed.

[0095] The present invention also provides a brewing structure 100, which includes a brewing cylinder 1, at least one piston structure, and a uniform feeding structure 4. It should be noted that the brewing cylinder 1, piston structure, and uniform feeding structure 4 in this specific embodiment can be the same as those in the above-described specific embodiments, or they can be other brewing cylinders 1, piston structures, and uniform feeding structures 4 different from those in the above-described specific embodiments. Specifically, the brewing structure 100 includes a brewing cylinder 1, at least one piston structure, and a uniform feeding structure 4, wherein at least one piston structure is movably disposed within the brewing cylinder 1 and forms a brewing space with the brewing cylinder 1; the uniform feeding structure 4 is disposed within at least one piston structure and includes a uniform feeding needle 41 that can pass through the corresponding piston structure and extend into the brewing space; wherein the piston structure has a first working state and a second working state, the uniform feeding needle 41 extends into the brewing space in the first working state and exits the brewing space in the second working state.

[0096] In this embodiment, the coffee powder is brewed and pressed by the movement of at least one piston structure within the brewing structure 100. A uniform feeding needle 41 is positioned on one or more of these piston structures, allowing the coffee powder 200 to be stirred within the brewing space after it has been collected in the brewing cylinder 1. This ensures the coffee powder 200 is evenly and loosely distributed within the brewing cylinder 1. After stirring, the uniform feeding needle 41 can be withdrawn from the brewing space, and the pressing operation can then be performed by the piston structure, resulting in a more uniform pressed coffee cake. Consequently, the extraction quality is higher during extraction.

[0097] Preferably, when there are two piston structures, including an upper piston structure 2 and a lower piston structure 3 arranged opposite to each other, when the upper piston structure 2 and the lower piston structure 3 are in the second working state of being close to each other, the uniform needle 41 does not extend into the brewing space. At this time, the upper piston structure 2 and the lower piston structure 3 can perform a pressing operation to pull the uniform needle 41 out of the brewing space, thereby avoiding interference between the uniform needle 41 and the upper piston structure 2 or the lower piston structure 3, and better protecting the uniform needle 41.

[0098] When the upper piston structure 2 and the lower piston structure 3 are in the first working state where they are relatively far apart, the feeding needle extends at least partially into the brewing space. At this time, the brewing structure 100 is in the powder receiving state or the feeding state. Therefore, by extending the feeding needle 41 into the brewing space, the coffee powder 200 located in the brewing space can be better stirred, so that the coffee powder 200 can be evenly spread on the lower piston structure 2.

[0099] Furthermore, at least one piston structure is provided with an opening through which the feeding needle 41 passes. Preferably, the opening may be provided on the piston structure corresponding to the feeding needle 41. In the second working state, the feeding needle 41 retracts into the opening of the piston structure and seals the opening to prevent coffee powder 200 from falling into the opening.

[0100] Furthermore, each piston structure includes a piston rod and a piston disc disposed at the end of the piston rod. The piston disc is disposed at the end of the piston rod and can at least partially extend into the brewing cylinder 1. The piston rod has a reciprocating stroke along the axial direction of the brewing cylinder and a rotating stroke along its central axis. The material leveling structure is disposed on the piston disc. The movement of the piston rod drives the piston disc and the material leveling structure 4 to move together. The movement of the piston rod realizes the movement of the material leveling needle 41.

[0101] The brewing structure 100 may also include a driving mechanism, which includes a linear drive motor for driving the piston rod to reciprocate axially and a rotary motor for driving the piston rod to rotate. The linear drive motor drives the upper piston structure 2 and / or the lower piston structure 3 to move linearly, so as to drive the upper piston structure 2 and the lower piston structure 3 to move closer or further away from each other, thereby causing the uniform needle 41 to extend into or out of the brewing space. The rotary motor drives the upper piston structure 2 and / or the lower piston structure 3 to rotate, thereby causing the uniform needle 41 to rotate as well.

[0102] Furthermore, preferably, when the distributing needle 41 is positioned on the lower piston structure 3, the lower piston structure 3 moves back and forth along the axial direction of the brewing cylinder 1, which drives the distributing structure 4 to rotate in both directions. For example, while the lower piston structure 3 moves upward, it rotates in the forward direction, causing the distributing needle 41 to rotate in the forward direction as well; while the lower piston structure 3 moves downward, it rotates in the reverse direction, causing the distributing needle 41 to rotate in the reverse direction as well. By driving the lower piston structure 3 to move back and forth within a certain range, while controlling the distributing needle 41 not to completely exit the brewing space and to continuously rotate in both directions, the coffee powder 200 can be repeatedly stirred in both directions, so that the coffee powder 200 is fully mobilized and the uniformity is better.

[0103] Preferably, the distributing needle 41 extends into the brewing space along the axial direction of the brewing cylinder 1, and the length of the distributing needle 41 extending into the brewing space is greater than 1 / 3 and less than 2 / 3 of the length of the brewing cylinder. The width of the area occupied by the distributing needle 41 in the brewing space is greater than 1 / 2 of the width of the brewing space. This allows the area occupied by the distributing needle 41 to cover the area where the coffee powder 200 is distributed as much as possible, thereby better stirring the coffee powder 200 and improving the spreading efficiency of the coffee powder 200. Here, the length direction refers to the axial direction along the brewing cylinder 1, and the width direction refers to the radial direction along the brewing cylinder 1.

[0104] The present invention also provides a beverage machine, which includes the above-mentioned brewing structure 100. The brewing structure 100 makes the powder more evenly distributed in the brewing tank 1 of the brewing structure 100. Therefore, during extraction, the extraction quality is higher, the taste of the beverage is better, and the user experience is improved.

[0105] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure made using the contents of the present invention specification and drawings, or any direct or indirect application in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A brewing structure, characterized in that, The application relates to a brewing device, comprising: a brewing cylinder; an upper piston structure and a lower piston structure arranged at two ends of the brewing cylinder along an axial direction of the brewing cylinder, at least one of the upper piston structure and the lower piston structure being movably arranged so that the upper piston structure and the lower piston structure can move away from or close to each other in the brewing cylinder; a material uniformizing structure having a first working state of extending into the brewing cylinder, and when the material uniformizing structure is in the first working state, the material uniformizing structure can be moved in an extending and / or rotating and / or swinging manner to uniformly lay powder on the lower piston structure.

2. The brewing structure of claim 1, wherein The material uniformizing structure is arranged on the lower piston structure; and / or The material uniformizing structure is arranged on the upper piston structure; or The material uniformizing structure is arranged on the brewing cylinder.

3. The brewing structure of claim 1, wherein, The material uniformizing structure is arranged on the lower piston structure, and the lower piston structure can rotate relative to the brewing cylinder; or The material uniformizing structure can rotate relative to the lower piston structure.

4. The brewing structure of claim 1, wherein, The material uniformizing structure is arranged on the upper piston structure, and the upper piston structure can rotate relative to the brewing cylinder; or The material uniformizing structure can rotate relative to the upper piston structure.

5. The brewing structure of claim 1, wherein, The upper piston structure and the lower piston structure are arranged to form a brewing space; When the material uniformizing structure is in the first working state, at least part of the material uniformizing structure extends into the brewing space; and the material uniformizing structure further has a second working state of being outside the brewing space.

6. The brewing structure of claim 5, wherein When the material uniformizing structure is in the first working state, the upper piston structure and the lower piston structure are arranged to be away from each other; and when the material uniformizing structure is switched from the first working state to the second working state, the upper piston structure and the lower piston structure are arranged to be close to each other.

7. The brewing structure of claim 1, wherein, The material uniformizing structure has an extending and moving stroke.

8. The brewing structure of claim 1, wherein, The upper piston structure and the lower piston structure are arranged to form a brewing space; The material uniformizing structure comprises a plurality of material uniformizing needles, and the plurality of material uniformizing needles have the first working state of extending into the brewing space and the second working state of being retracted outside the brewing space.

9. The brewing structure of claim 8, wherein, When the upper piston structure and the lower piston structure are close to each other, the material uniformizing needles can be switched from the first working state to the second working state.

10. The brewing structure of claim 8, wherein, The lower piston structure is rotatably arranged on the brewing cylinder, and the plurality of material uniformizing needles are arranged on the lower piston structure.

11. The brewing structure of claim 9, wherein The lower piston structure comprises a lower piston rod and a lower piston disc arranged at one end of the lower piston rod, and the plurality of material uniformizing needles are arranged on the lower piston disc.

12. The brewing structure of claim 11, wherein, The lower piston structure further comprises a lower supporting plate and a lower supporting rod connected with the lower supporting plate, the lower supporting plate is arranged at a middle part of the brewing cavity, a plurality of first through holes are arranged on the lower supporting plate, the plurality of first through holes are arranged in one-to-one correspondence with the plurality of material uniformizing needles, and the lower supporting rod is connected with the brewing cylinder. When the material uniformizing structure is in the first working state, the plurality of material uniformizing needles are arranged in one-to-one correspondence in the plurality of first through holes and protrude from one side of the lower supporting plate towards the upper piston structure; and when the material uniformizing structure is in the second working state, the plurality of material uniformizing needles are retracted in the plurality of first through holes in one-to-one correspondence.

13. The brewing structure of claim 12, wherein, The lower piston structure further comprises a first elastic expansion member connecting the lower piston disc and the lower receiving plate; Under the elastic restoring force of the first elastic expansion member, the plurality of uniformizing needles can automatically switch from the first working state to the second working state.

14. The brewing structure of claim 8, wherein, The upper piston structure is rotatably arranged on the brewing cylinder, and the plurality of uniformizing needles are arranged on the upper piston structure.

15. The brewing structure of claim 14, wherein, The upper piston structure comprises an upper piston rod, an upper piston disc arranged at one end of the upper piston rod, an upper receiving plate, and an upper supporting rod connected with the upper receiving plate. The upper piston disc is located below the upper receiving plate and is movable relative to the upper receiving plate. The plurality of uniformizing needles are arranged on the upper receiving plate. The upper piston disc is provided with a plurality of second through holes. The plurality of second through holes are arranged one-to-one corresponding to the plurality of uniformizing needles. When in the first working state, the upper piston disc and the upper receiving plate are attached, and the plurality of uniformizing needles are arranged one-to-one corresponding to the plurality of second through holes and protrude from the side of the upper piston disc facing the lower piston structure. When in the second working state, the upper piston disc is away from the upper receiving plate, and the plurality of uniformizing needles are arranged one-to-one corresponding to the plurality of second through holes.

16. The brewing structure of claim 15, wherein The upper piston structure further comprises a second elastic expansion member connecting the upper receiving plate and the upper piston disc. Under the elastic restoring force of the second elastic expansion member, the plurality of uniformizing needles can automatically switch from the first working state to the second working state.

17. A brewing structure, characterized in that It comprises: a brewing cylinder having at least one opening open to the outside; an upper piston structure and a lower piston structure, at least one of which can be separated from the opening of the brewing cylinder. The upper piston structure and / or the lower piston structure have a moving stroke of approaching and moving away in the brewing cylinder; a uniformizing structure arranged on at least one of the upper piston structure and the lower piston structure with a larger moving stroke. At least part of the uniformizing structure can extend into the brewing cylinder to be located between the upper piston structure and the lower piston structure. The uniformizing structure can be moved by expansion, rotation and / or oscillation to uniformly lay the powder on the lower piston structure.

18. A brewing structure as claimed in claim 17, wherein The upper piston structure and the lower piston structure are arranged oppositely in the brewing cylinder to form a brewing space therebetween. The upper piston structure has a powder receiving state separated from the brewing cylinder. When in the powder receiving state, the uniformizing structure can partially extend into the brewing space or be located outside the brewing space.

19. A brewing structure as claimed in claim 18, wherein When the powder receiving is completed and the upper piston structure moves to the opening, at least part of the uniformizing structure extends into the brewing space and continuously increases the length of extending into the brewing space.

20. A brewing structure, characterized in that It comprises: a brewing cylinder; at least one piston structure movably arranged in the brewing cylinder to form a brewing space with the brewing cylinder; a uniformizing structure arranged in at least one of the piston structures and comprising uniformizing needles that can pass through the corresponding piston structure and extend into the brewing space; The piston structure has a first working state and a second working state, and the uniformizing needle extends into the brewing space in the first working state and exits the brewing space in the second working state.

21. A brewing structure as claimed in claim 20, wherein The piston structure is provided with two piston structures, including an upper piston structure and a lower piston structure arranged oppositely, and the uniformizing needle does not extend into the brewing space when the upper piston structure and the lower piston structure are in the second working state of approaching each other.

22. A brewing structure according to claim 20, wherein The piston structure is provided with two piston structures, including an upper piston structure and a lower piston structure arranged oppositely, and the uniformizing needle at least partially extends into the brewing space when the upper piston structure and the lower piston structure are in the first working state of moving away from each other.

23. A brewing structure according to claim 20, wherein At least one of the piston structures is provided with an opening through which the uniformizing needle passes, and the uniformizing needle is retracted in the opening of the piston structure and seals the opening in the second working state.

24. A brewing structure according to claim 20, wherein Each of the piston structures includes a piston rod and a piston disc arranged at the end of the piston rod, and the piston disc is arranged at the end of the piston rod and at least partially extends into the brewing cylinder. The piston rod has a reciprocating movement along the axial direction of the brewing cylinder and a rotating movement along the central axis thereof, and the uniformizing structure is arranged on the piston disc, and the piston rod moves to drive the piston disc and the uniformizing structure to move together.

25. A brewing structure according to claim 24, wherein At least one of the piston structures is arranged as a lower piston structure, and the uniformizing structure is arranged on the lower piston structure, wherein the lower piston structure moves back and forth along the axial direction of the brewing cylinder to drive the uniformizing structure to rotate in the forward and reverse directions.

26. A brewing structure according to claim 20, wherein The uniformizing needle extends into the brewing space along the axial direction of the brewing cylinder, and the length of the uniformizing needle extending into the brewing space is greater than 1 / 3 of the length of the brewing cylinder and less than 2 / 3 of the length of the brewing cylinder; and / or, The width of the area occupied by the uniformizing needle in the brewing space is greater than 1 / 2 of the width of the brewing space.

27. A drinks machine characterised by The brewing structure includes the brewing structure according to any one of claims 1 to 26.

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