Coffee brewing mechanism

Abstract

The utility model discloses a coffee brewing mechanism, which comprises a turning cover, a coffee brewing device and a coffee brewing device, the base is rotationally arranged on the support; the handle is rotationally arranged on the turning cover; the brewing box is mounted on the bracket; the flip cover further comprises a pressing block and a pressing strip, the pressing strip is rotationally connected with the base and the handle, and therefore when the flip cover is in a closed state relative to the support, the coffee brewing mechanism can be in the following two states: in the first state, the handle is closed relative to the flip cover, the pressing strip presses the pressing block towards the brewing box, and the support and the pressing strip are locked; in the second state, the handle is opened relative to the turning cover, the pressing strip and the support are unlocked, and the pressing strip leaves the pressing block so that the pressing block can be separated from the brewing box.

Description

Technical Field

[0001] The utility model relates to a beverage brewing device, in particular to a coffee brewing mechanism. Background Art

[0002] The capsule coffee machines currently on the market use coffee capsules as extraction raw materials. The capsule coffee machine is equipped with a cup holder with a cup cavity inside. The coffee capsule is placed into the filter, and then the filter is placed into the cup cavity. The upper cover for sealing the cup cavity is closed. The capsule coffee machine injects a mixture of high-temperature and high-pressure water and steam into the coffee capsule to extract coffee liquid.

[0003] For example, a Chinese patent application number 202222157386.X discloses a capsule coffee machine with a novel lid opening structure, which includes a capsule puncturing mechanism and a water supply mechanism. The capsule puncturing mechanism includes a capsule accommodating chamber and a lid opening structure. A support portion is provided on the outside of the capsule accommodating chamber. The lid opening structure includes a cover body. When the cover body is in a locked state, a reset spring pushes the lock tongue of the fixed block to insert under the lock block.

[0004] The cover of the prior art is only provided with a locking tongue to lock with the capsule accommodating cavity, and cannot withstand high pressure to make espresso coffee, that is, safety problems may arise during high-pressure coffee extraction.

[0005] Therefore, there is room for further improvement. Utility Model Content

[0006] The technical problem to be solved by the present invention is to address the deficiencies in the above-mentioned prior art and to provide a coffee brewing mechanism that can achieve high-pressure sealing and locking of a brewing box and realize the extraction of multiple coffees.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: a coffee brewing mechanism, comprising:

[0008] Flip cover, including base;

[0009] A bracket, wherein the base is rotatably arranged on the bracket;

[0010] a handle rotatably disposed on the flip cover; and

[0011] The brewing box is mounted on the bracket; it is characterized by:

[0012] The flip cover further comprises a pressing block and a pressure strip, wherein the pressure strip is rotatably connected to the base and the handle respectively, so that when the flip cover is in a closed state relative to the bracket, the coffee brewing mechanism can be in the following two states:

[0013] In the first state, the handle is closed relative to the flip cover, the pressure strip presses the pressing block toward the brewing box, and the bracket and the pressure strip are locked;

[0014] In the second state, the handle is opened relative to the flip cover, the pressure strip is unlocked from the bracket, and the pressure strip leaves the pressing block to separate the pressing block from the brewing box.

[0015] The first locking of the flip cover and the bracket is achieved through the cooperation of the pressure strip, and the second locking and sealing are achieved through the cooperation of the pressure strip and the brewing box. As a result, the brewing box can withstand high pressure, and can realize the extraction of American coffee at normal pressure, as well as the extraction of high-pressure Italian coffee, and the extraction of multiple types of coffee.

[0016] Furthermore, in order to facilitate the definition of the movement path of the pressing block and ensure that the pressing block maintains a tendency to leave the brewing box so as to automatically separate from the brewing box when the flip cover is opened, the pressing block includes a first portion located on the side of the base away from the bracket and a second portion capable of passing through a through hole formed in the base and cooperating with the brewing box, wherein the first portion cooperates with the pressure strip;

[0017] A guide column and a first elastic member are provided on the base. The guide column passes through the first part of the pressing block. The first elastic member is sleeved on the guide column. The first elastic member abuts between the first part of the pressing block and the base, so that the pressing block maintains a tendency to move away from the brewing box.

[0018] Furthermore, in order to facilitate locking and unlocking of the pressure strip with the bracket during rotation, a locking block is provided on the bracket. When the flip cover is in a closed state relative to the bracket, the bracket and the base are tightly attached, and the locking block penetrates into the flip cover.

[0019] A lock is provided at the end of the pressure strip facing the bracket, and a groove is formed in the locking block. The groove is formed by the locking block being recessed toward a position away from the connection between the handle and the base. When the pressure strip is rotated, it is locked in the groove to achieve locking or disengaged from the groove to achieve unlocking.

[0020] Furthermore, a water supply component is provided in the flip cover, the water supply component has a water inlet, and a fluid channel is formed in the pressing block. When the flip cover is in a closed state relative to the bracket, hot water from the water inlet of the water supply component is supplied to the brewing box through the pressing block.

[0021] In order to prevent coffee from flowing back, a filter is provided at the outlet of the fluid channel.

[0022] To ensure cleanliness inside the brewing box, the water supply component further has an air inlet that can be connected to an external air pump. The water inlet and the air inlet are fluidically connected inside the water supply component. The air inlet can also be connected to the brewing box through a fluid channel.

[0023] In order to prevent water or coffee from flowing into the air inlet, a one-way valve is provided at the air inlet, and a pressure-bearing member is provided on the periphery of the one-way valve.

[0024] Furthermore, a mounting seat is formed on the base, and the pressure strips have two, and the corresponding ends of the two pressure strips are connected to each other through a connecting strip, and the two ends of the connecting strip are respectively rotatably connected to the mounting seats at corresponding positions, thereby realizing the rotatable connection between the pressure strip and the base.

[0025] Furthermore, the handle is rotatably connected to the base, and the handle is also connected to the pressure strip via a connecting rod, and the rotation center of the connecting rod and the handle are staggered.

[0026] Furthermore, the flip cover also includes a shell, which is in the shape of a box with one side open. The base is arranged at the opening of the shell, the pressure strip is arranged in the space formed by the base and the shell, and the handle passes through the shell and is connected to the base.

[0027] Compared with the prior art, the advantages of the present invention are: the first locking of the flip cover and the bracket is achieved through the cooperation between the bracket and the pressure strip, and the second locking and sealing are achieved through the cooperation between the pressure strip and the brewing box, thereby enabling the brewing box to withstand high pressure, and can realize the extraction of both American coffee at normal pressure and Italian coffee at high pressure, and realize the extraction of multiple types of coffee. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of a closed coffee brewing mechanism according to an embodiment of the present invention;

[0029] Figure 2 for Figure 1 Schematic diagram of hidden shell;

[0030] Figure 3 for Figure 1 sectional view of

[0031] Figure 4 for Figure 1 Cross-sectional view (section and Figure 3 parallel);

[0032] Figure 5 for Figure 1 Schematic diagram of the decomposition structure;

[0033] Figure 6 A partial schematic diagram of a coffee brewing mechanism according to an embodiment of the present invention;

[0034] Figure 7 for Figure 6 Schematic diagram of the decomposition structure;

[0035] Figure 8A partial schematic diagram of a coffee brewing mechanism according to an embodiment of the present invention;

[0036] Figure 9 A schematic diagram of a bracket of a coffee brewing mechanism according to an embodiment of the present invention;

[0037] Figure 10 This is a schematic diagram of an open coffee brewing mechanism according to an embodiment of the present invention;

[0038] Figure 11 for Figure 10 Schematic diagram of hidden shell;

[0039] Figure 12 for Figure 10 Schematic diagram of the decomposition structure. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0042] See also Figures 1 to 12 A coffee brewing mechanism can be integrally mounted on a coffee machine, comprising a flip cover 1, a bracket 2, a handle 3, and a brewing box 4, wherein the bracket 2 can be used for mounting on the body of the machine.

[0043] The flip cover 1 is rotatably connected to one end of the bracket 2, thereby allowing the flip cover 1 to rotate relative to the bracket 2. The opposite end of the bracket 2 is used to mount a brewing box 4. The brewing box 4 can be an American-style capsule extraction box, an Italian-style capsule extraction box, etc., and can also be used to extract coffee powder in the box in an Italian or American style, thereby extracting different styles of coffee.

[0044] The flip cover 1 comprises a base 11, a housing 12, and a pressure block 13. The housing 12 can be in the form of a box with one side open, and the base 11 is positioned within the open end of the housing 12. The base 11 is provided with a rotating shaft 111 for connecting to the bracket 2. A torsion spring 116 is mounted on the rotating shaft 111. The ends of the torsion spring 116 abut against the base 11 and the bracket 2, respectively, to maintain the flip cover 1's overall rotation relative to the bracket 2, tending to open relative to the bracket 2. When the flip cover 1 and the bracket 2 are closed, the base 11 and the bracket 2 are in close contact. When the flip cover 1 and the bracket 2 are open, the base 11 and the bracket 2 are no longer in close contact and are at a certain angle to each other. The base 11 is provided with a circular through-hole 112 that mates with the brewing box 4. The pressure block 13 comprises a first portion 131 positioned within the space formed by the base 11 and the housing 12, and a second portion 132 that passes through the through-hole 112 and engages with the brewing box 4.

[0045] The flip cover 1 also includes a pressure strip 14, which can be made of metal and is disposed within the space formed by the base 11 and the housing 12. There can be two pressure strips 14, with corresponding ends of the two pressure strips 14 connected to each other via a connecting strip 141. The base 11 is formed with two mounting seats 113 spaced apart from each other. The two ends of the connecting strip 141 are rotatably connected to the corresponding mounting seats 113, thereby rotatably connecting the pressure strip 14 to the base 11. The rotation axis of the pressure strip 14 can be parallel to the rotation axis of the base 11.

[0046] The handle 3 passes through the housing 12 and is rotatably connected to the base 11. At least a portion of the handle 3 is located outside the housing 12, allowing the user to access and operate the handle 3. The handle 3 is also connected to the pressure strip 14 via a connecting rod 31. The connecting rod 31 is offset from the center of rotation of the handle 3, meaning that the connecting rod 31 is not connected to the connection point between the handle 3 and the base 11. When the handle 3 is closed relative to the flip cover 1, the pressure strip 14 can be in a nearly perpendicular position relative to the pressure block 13. In this position, the pressure strip 14 applies force to the first portion 131 of the pressure block 13, thereby pressing the pressure block 13 toward the brewing chamber 4, thereby pressing the lid 41 of the brewing chamber 4, which has a water inlet 411, toward the extraction chamber 42 of the brewing chamber 4. When the handle 3 is opened relative to the flip cover 1, the pressure strip 14 can rotate relative to the pressure block 13, thereby no longer applying pressure to the pressure block 13, causing the pressure block 13 to move away from the brewing chamber 4.

[0047] To allow the pressing block 13 to automatically move away from the brewing box 4 when no force is applied, a guide post 114 and a first elastic member 115 are provided on the base 11. The guide post 114 passes through the first portion 131 of the pressing block 13 and limits the linear movement of the pressing block 13 relative to the brewing box 4 when the flip cover 1 is in the closed state. The first elastic member 115 is preferably a spring, which is sleeved on the guide post 114 and abuts between the first portion 131 of the pressing block 13 and the base 11, ensuring that the pressing block 13 maintains a tendency to move away from the brewing box 4.

[0048] The bracket 2 is provided with a locking block 21. When the flip cover 1 is closed, the bracket 2 and the base 11 are in close contact, and the locking block 21 is inserted into the flip cover 1 (this can be achieved by opening a corresponding hole in the base 11). The end of the pressure strip 14 facing the bracket 2 is provided with a lock catch 142. The locking block 21 has a groove 211 formed therein. The groove 211 is formed by the locking block 21 being recessed away from the connection between the handle 3 and the base 11 on one side. This allows the pressure strip 14 to engage with the groove 211 to lock or disengage from the groove 211 to unlock when it is rotated.

[0049] Thus, when the handle 3 is closed (the handle 3 is almost embedded in the top of the housing 12), the locking block 21 on the bracket 2 and the lock catch 142 on the pressure strip 14 are locked, and the pressure strip 14 presses the pressing block 13 against the lid 411 of the brewing box 4. At this time, the brewing box 4 installed on the bracket 2 can withstand pressures exceeding 20 kg, and can brew both espresso and American coffee. This can reduce sealing errors in the brewing box 4 and lower the assembly tolerance requirements. To prevent the structure from loosening, when the handle 3 is closed, it is necessary to ensure that the connecting rod 31 rotates through the parallel line L (the line connecting the connection points of the handle 3 and the connecting rod 31 and the connection points of the handle 3 and the base 11), so that the angle α between the connecting rod 31 and the parallel line L is obtuse (equivalent to the dead center of a conventional connecting rod mechanism). When the handle is opened 3, the pressure strip 14 rotates relative to the base 11, the lock catch 142 disengages from the locking block 21, and the pressing block 13 is no longer affected by the pressure strip 14 and moves away from the brewing box 4 to reset. At the same time, the flip cover 1 as a whole rotates relative to the bracket 2 under the action of the torsion spring 116 and opens. After that, the brewing box 4 can be replaced.

[0050] A water supply component 5 is also located within the flip cover 1. This component has a water inlet 51 and an air inlet 52. The water inlet 51 communicates with the heating device within the coffee machine's housing, providing hot water. The water inlet 51 and the air inlet 52 are fluidically connected within the water supply component 5. A fluid channel 133 is formed within the compression block 13. When the flip cover 1 is closed, hot water from the water inlet 51 of the water supply component 5 flows through the compression block 13 and is supplied to the brewing chamber 4. A filter 134 can be provided at the outlet of the fluid channel 133 to prevent backflow of coffee grounds. A sealing ring 135 is provided between the compression block 13 and the brewing chamber 4 to prevent water leakage.

[0051] The air inlet 52 is used to connect to an external air pump (not shown). The air inlet 52 can also be connected to the brewing box 4 through the fluid channel 133. A one-way valve 53 is provided at the air inlet 52 to prevent water in the brewing box 4 from flowing back out of the air inlet 52. The one-way valve 53 can be kept pressed against the air inlet 52 by a second elastic member 54 such as a spring. The one-way valve 53 can be made of silicone. A pressure-bearing member 55 is provided on the outer periphery of the one-way valve 53, such as a plastic support, to increase the pressure-bearing capacity of the one-way valve 53. When coffee extraction is completed, the air pump blows gas into the air inlet 52, causing the one-way valve 53 to leave the air inlet 52, the second elastic member 54 to contract, and the gas can enter the brewing box 4 through the pressing block 13, blowing away the residual water in the brewing box 4 for a cleaner brewing experience.

[0052] The "fluid communication" referred to in the present invention refers to the spatial positional relationship between two components or parts (hereinafter collectively referred to as the first part and the second part), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path and / or be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, conduit, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A coffee brewing mechanism comprising: A flip cover (1), comprising a base (11); A bracket (2), wherein the base (11) is rotatably disposed on the bracket (2); A handle (3) is rotatably mounted on the flip cover (1); and The brewing box (4) is mounted on the bracket (2); it is characterized by: The flip cover (1) further comprises a pressing block (13) and a pressure strip (14), wherein the pressure strip (14) is rotatably connected to the base (11) and the handle (3), respectively, so that when the flip cover (1) is in a closed state relative to the bracket (2), the coffee brewing mechanism can be in the following two states: In the first state, the handle (3) is closed relative to the flip cover (1), the pressure strip (14) presses the pressing block (13) toward the brewing box (4), and the bracket (2) and the pressure strip (14) are locked; In the second state, the handle (3) is opened relative to the flip cover (1), the pressure strip (14) is unlocked from the bracket (2), and the pressure strip (14) leaves the pressing block (13) so that the pressing block (13) and the brewing box (4) are separated.

2. The coffee brewing mechanism according to claim 1, characterized in that: The pressing block (13) comprises a first portion (131) located on a side of the base (11) away from the bracket (2) and a second portion (132) capable of passing through a through hole (112) provided on the base (11) and cooperating with the brewing box (4), wherein the first portion (131) cooperates with the pressure strip (14); A guide column (114) and a first elastic member (115) are provided on the base (11); the guide column (114) passes through the first portion (131) of the pressing block (13); the first elastic member (115) is sleeved on the guide column (114); the first elastic member (115) abuts between the first portion (131) of the pressing block (13) and the base (11), so that the pressing block (13) maintains a tendency to move away from the brewing box (4).

3. The coffee brewing mechanism according to claim 1, characterized in that: A locking block (21) is provided on the bracket (2); when the flip cover (1) is in a closed state relative to the bracket (2), the bracket (2) and the base (11) are in close contact, and the locking block (21) penetrates into the flip cover (1); The pressure strip (14) is provided with a lock buckle (142) at the end portion facing the bracket (2), and a groove (211) is formed in the locking block (21). The groove (211) is formed by the locking block (21) being recessed toward a position away from the connection between the handle (3) and the base (11) on one side. When the pressure strip (14) is rotated, it is locked in the groove (211) or unlocked by being disengaged from the groove (211).

4. The coffee brewing mechanism according to any one of claims 1 to 3, characterized in that: A water supply component (5) is also provided in the flip cover (1), and the water supply component (5) has a water inlet (51). A fluid channel (133) is formed in the pressing block (13). When the flip cover (1) is in a closed state relative to the bracket (2), hot water from the water inlet (51) of the water supply component (5) is supplied to the brewing box (4) through the pressing block (13).

5. The coffee brewing mechanism according to claim 4, characterized in that: The outlet of the fluid channel (133) is provided with a filter screen (134).

6. The coffee brewing mechanism according to claim 4, characterized in that: The water supply component (5) also has an air inlet (52) that can be connected to an external air pump. The water inlet (51) and the air inlet (52) are fluidically connected inside the water supply component (5). The air inlet (52) can also be connected to the brewing box (4) through a fluid channel (133).

7. The coffee brewing mechanism according to claim 6, characterized in that: A one-way valve (53) is provided at the air inlet (52), and a pressure-bearing part (55) is provided on the outer periphery of the one-way valve (53).

8. The coffee brewing mechanism according to any one of claims 1 to 3, characterized in that: A mounting seat (113) is formed on the base (11), and the pressure strip (14) has two pieces. One corresponding end of the two pressure strips (14) is connected to each other through a connecting strip (141), and the two ends of the connecting strip (141) are respectively rotatably connected to the mounting seat (113) at the corresponding position, thereby realizing the rotational connection between the pressure strip (14) and the base (11).

9. The coffee brewing mechanism according to any one of claims 1 to 3, characterized in that: The handle (3) is rotatably connected to the base (11), and the handle (3) is also connected to the pressure strip (14) via a connecting rod (31). The connecting rod (31) and the rotation center of the handle (3) are staggered.

10. The coffee brewing mechanism according to claim 9, characterized in that: The flip cover (1) further comprises a shell (12), the shell (12) being in the shape of a box with one side open, the base (11) being arranged at the open portion of the shell (12), the pressure strip (14) being arranged in a space formed by the base (11) and the shell (12), and the handle (3) passing through the shell (12) and being connected to the base (11).

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