Foaming device of coffee machine

Abstract

The utility model discloses a foaming device of a coffee machine, which comprises a foam maker, a guide piece and a material blocking support, and the foam maker is provided with a cavity, a steam port and a milk inlet; one side of the guide piece and one end of the cavity form a negative pressure cavity; the milk inlet and the steam port are communicated with the negative pressure cavity; one side of the material blocking bracket and the other side of the guide piece form a mixing cavity, and the other side of the material blocking bracket and the other end of the cavity form a milk foam output end; the guide piece is provided with a first through hole, the first through hole and the steam opening are in the same straight line, and the negative pressure cavity communicates with the mixing cavity through the first through hole; and a material blocking plate for blocking the first through hole is arranged on the material blocking bracket. Therefore, high-temperature steam is sprayed out of the steam opening, penetrates through the negative pressure cavity and enters the mixing cavity through the first through hole, vacuum negative pressure is formed in the negative pressure cavity, and air and milk are sucked in and then conveyed into the mixing cavity; and the first through hole is shielded by the baffle plate, so that the retention time of the high-temperature steam, the air and the milk in the mixing cavity is prolonged, the high-temperature steam, the air and the milk are mixed more sufficiently, and the stability of the foaming effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to a foaming device for a coffee machine. Background Art

[0002] The frothing mechanism of existing coffee machines typically features a frothing chamber, which is connected to a steam port, a milk inlet, and a milk froth outlet. When high-temperature steam is injected into the frothing chamber from the steam port, a vacuum is created, drawing milk and air into the chamber. The steam and air then form froth into the milk, which is then dispensed through the milk froth outlet.

[0003] However, there is no structure in the single foaming chamber to prolong the mixing of milk, air and high-temperature steam, resulting in a short mixing time of milk, air and high-temperature steam, making it difficult to ensure the uniformity of milk foam, and the foaming effect has poor stability, thereby affecting the overall taste and quality of the coffee beverage. Utility Model Content

[0004] In order to overcome the defects of the above-mentioned prior art, the utility model provides a coffee machine foaming device, wherein a steam port sprays high-temperature steam and passes through a negative pressure chamber and enters a mixing chamber through a first through hole. The negative pressure chamber forms a vacuum negative pressure and sucks in air and milk and then outputs them into the mixing chamber; a baffle plate blocks the first through hole to extend the residence time of the high-temperature steam, air and milk in the mixing chamber, thereby making the high-temperature steam, air and milk mix more fully and ensuring the stability of the foaming effect.

[0005] The technical solution adopted by the present invention to solve the problem is:

[0006] A coffee machine foaming device, comprising:

[0007] A foamer, which is provided with a cavity, a steam port and a milk inlet;

[0008] A guide member is disposed in the cavity, wherein one side of the guide member and one end of the cavity form a negative pressure cavity; the milk inlet and the steam outlet are both connected to the negative pressure cavity;

[0009] a material stopping bracket disposed in the cavity, wherein one side of the material stopping bracket and the other side of the guide member form a mixing chamber; the other side of the material stopping bracket and the other end of the cavity form a milk foam output end;

[0010] The guide member is provided with a first through hole which is in a straight line with the steam port, and the first through hole connects the negative pressure chamber with the mixing chamber; the material blocking plate which blocks the first through hole is provided on the material blocking bracket.

[0011] Furthermore, the guide member is provided with a protrusion, the protrusion is provided with the first through hole, the protrusion is further provided with a guide arc surface on the side facing the steam port, and the guide arc surface and one end of the cavity form the negative pressure cavity.

[0012] Furthermore, it also includes a connecting tube arranged in the cavity, the connecting tube is formed with a second through hole connecting the mixing chamber and the milk foam output end, the material blocking bracket is arranged in the second through hole, and one side of the material blocking bracket and the protrusion form the mixing chamber.

[0013] Furthermore, the material blocking bracket further includes a connecting rod, and the material blocking plate is connected to the inner wall of the second through hole via the connecting rod.

[0014] Furthermore, the other side of the material blocking bracket is tapered, and a plurality of connecting rods are provided and arranged circumferentially along the inner wall of the second through hole.

[0015] Furthermore, it also includes a milk foam connector provided at the other end of the cavity and connected to the milk foam output end, and a sealing ring is provided between the milk foam connector and the inner wall of the cavity.

[0016] Furthermore, a nozzle is provided at one end of the steam port, and the nozzle extends into the negative pressure chamber; a steam connector for connecting a steam pipe is installed at the other end of the steam port, and a gap for air to enter is provided between the steam connector and the steam port.

[0017] Furthermore, it also includes an installation box, and the foamer is arranged in the installation box.

[0018] Furthermore, an air inlet for air to enter is provided on the top of the installation box.

[0019] Furthermore, it also includes a milk box arranged at the bottom of the installation box, the milk box is provided with a milk storage cavity; the milk inlet is installed with a straw, and the straw extends into the milk storage cavity.

[0020] To sum up, in the foaming device of the coffee machine of the present invention, the steam port sprays high-temperature steam and passes through the negative pressure chamber, enters the mixing chamber through the first through hole, so that the negative pressure chamber forms a vacuum negative pressure, and sucks in air and milk and then inputs them into the mixing chamber; the baffle plate blocks the high-temperature steam, air and milk entering the mixing chamber from the first through hole, thereby extending the residence time of the high-temperature steam, air and milk in the mixing chamber, so that the high-temperature steam, air and milk are mixed more fully, which not only improves the foaming effect, but also ensures the stability of the foaming effect as well as the taste and quality of the coffee beverage, thereby enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the coffee machine foaming device of the utility model;

[0022] Figure 2 for Figure 1 Schematic cross-sectional view of ;

[0023] Figure 3 for Figure 2 A magnified schematic diagram of part A in the middle;

[0024] Figure 4 This is a schematic structural diagram of the connecting cylinder in the coffee machine foaming device of the present invention;

[0025] Figure 5 This is a structural diagram of a guide member in the coffee machine foaming device of the present invention;

[0026] Figure 6 for Figure 5 Schematic cross-sectional view of ;

[0027] Figure 7 This is a partially exploded schematic diagram of the coffee machine foaming device of the present invention.

[0028] The meanings of the reference numerals are as follows:

[0029] 1. Frothing device; 11. Cavity; 111. Negative pressure chamber; 112. Mixing chamber; 113. Milk foam output terminal; 12. Steam outlet; 121. Nozzle; 13. Milk inlet; 2. Connecting tube; 21. Second through hole; 22. Material blocking bracket; 221. Material blocking plate; 222. Connecting rod; 3. Guide member; 31. Protrusion; 311. First through hole; 312. Guide arc surface; 4. Steam connector; 5. Milk foam connector; 51. Sealing ring; 6. Straw; 7. Mounting box; 71. Air inlet; 72. Decorative cover; 8. Milk box; 81. Milk storage chamber; 9. Base. DETAILED DESCRIPTION

[0030] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 modules or components referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] like Figure 1-7 The coffee machine foaming device shown in the figure includes a foamer 1, a guide 3 and a material blocking bracket 22, the foamer 1 is provided with a cavity 11, a steam port 12 and a milk inlet 13; the guide 3 is arranged in the cavity 11, and one side of the guide 3 and one end of the cavity 11 form a negative pressure cavity 111; the milk inlet 13 and the steam port 12 are both connected with the negative pressure cavity 111; the material blocking bracket 22 is arranged in the cavity 11, and one side of the material blocking bracket 22 and the other side of the guide 3 form a mixing cavity 112; the other side of the material blocking bracket 22 and the other end of the cavity 11 form a milk foam output end 113; wherein, the guide 3 is provided with a first through hole 311 which is in a straight line with the steam port 12, and the first through hole 311 connects the negative pressure cavity 111 with the mixing cavity 112; the material blocking bracket 22 is provided with a material blocking plate 221 which blocks the first through hole 311.

[0034] Based on the above structure, when using the coffee machine foaming device of the present invention, the steam port 12 can be connected to the steam pipeline, and the steam pipeline transports high-temperature steam to the steam port 12 to be sprayed out and pass through the negative pressure chamber 111, and enter the mixing chamber 112 through the first through hole 311, so that the negative pressure chamber 111 forms a vacuum negative pressure, and the air sucked in and the milk sucked in through the milk inlet 13 are input into the mixing chamber 112 through the first through hole 311; the baffle plate 221 blocks the high-temperature steam, air and milk entering the mixing chamber 112 from the first through hole 311, thereby extending the residence time of the high-temperature steam, air and milk in the mixing chamber 112, so that the high-temperature steam, air and milk are mixed more fully, the foaming effect is improved, the stability of the foaming effect and the taste and quality of the coffee beverage are ensured, thereby enhancing the user experience.

[0035] It should be noted that the baffle plate 221 is arranged in a straight line with the first through hole 311 and the steam port 12, so that the high-temperature steam, air and milk input into the mixing chamber 112 from the first through hole 311 are blocked, thereby extending the residence time of the high-temperature steam, air and milk in the mixing chamber 112, so that the high-temperature steam, air and milk are fully mixed, providing a foaming effect, and ensuring the stability of the foaming.

[0036] See Figure 5-6The guide member 3 is provided with a protrusion 31, and a first through hole 311 is provided on the protrusion 31. A guide arc surface 312 is further provided on the side of the protrusion 31 facing the steam port 12. The guide arc surface 312 and one end of the cavity 11 form a negative pressure cavity 111. The protrusion 31 is in a truncated cone shape, and a concave guide arc surface 312 is provided on the side facing the steam port 12. The guide arc surface 312 and one end of the cavity 11 form a negative pressure cavity 111. When high-temperature steam is ejected from the steam port 12, the first through hole 311 and the steam port 12 are arranged in a straight line. The high-temperature steam directly passes through the negative pressure cavity 111 and is input into the mixing cavity 112 from the first through hole 311, so that a vacuum negative pressure is formed in the negative pressure cavity 111. Under the action of the negative pressure, the milk inlet 13 inhales the milk. The milk is input into the negative pressure chamber 111, and the air is sucked into the negative pressure chamber 111 at the same time. Secondly, under the action of high-temperature steam spraying into the mixing chamber 112, the milk and air in the negative pressure chamber 111 are input into the mixing chamber 112 from the first through hole 311 under the action of the guiding arc surface 312. Since the baffle plate 221 blocks the first through hole 311, the high-temperature steam, air and milk all stay in the mixing chamber 112 for a longer period of time, so that the high-temperature steam, air and milk are mixed more fully, thereby improving the foaming effect.

[0037] It should be noted that, in this embodiment, an air inlet or a gap reserved for air entry can be provided at the milk inlet 13 or the steam outlet 12 so that air and milk can be sucked into the negative pressure chamber 111 under vacuum negative pressure formed in the negative pressure chamber 111.

[0038] See also Figure 3-4 The coffee machine foaming device of the present invention also includes a connecting tube 2 arranged in the cavity 11, and the connecting tube 2 is formed with a second through hole 21 connecting the mixing chamber 112 and the milk foam output end 113. The material blocking bracket 22 is arranged in the second through hole 21, and one side of the material blocking bracket 22 and the protrusion 31 form the mixing chamber 112.

[0039] Specifically, the material retaining bracket 22 further includes a connecting rod 222, through which the material retaining plate 221 is connected to the inner wall of the second through hole 21. The other side of the material retaining bracket 22 is tapered, and a plurality of connecting rods 222 are provided and arranged circumferentially along the inner wall of the second through hole 21. This improves the structural strength of the material retaining plate 221 and the connecting tube 2, and prevents damage between the material retaining bracket 22 and the connecting tube 2 when resisting high-temperature steam, thereby affecting the residence time of the high-temperature steam, air, and milk in the mixing chamber 112, and further affecting the foaming effect.

[0040] Furthermore, the coffee machine foaming device of the present invention also includes a milk foam connector 5 arranged at the other end of the cavity 11 and connected to the milk foam output end 113 and used to output milk foam. A sealing ring 51 is provided between the milk foam connector 5 and the inner wall of the cavity 11 to prevent leakage at the connection between the milk foam output end 113 and the milk foam connector 5 under the action of high-temperature steam.

[0041] Among them, a nozzle 121 is provided at one end of the steam port 12, and the nozzle 121 extends into the negative pressure chamber 111; a steam connector 4 for connecting a steam pipe is installed at the other end of the steam port 12, and there is a gap between the steam connector 4 and the steam port 12 for air to enter.

[0042] See Figure 7 The coffee machine foaming device of the present invention further includes a mounting box 7, in which the foamer 1 is arranged. An air inlet 71 for air to enter is provided on the top of the mounting box 7, and a decorative cover 72 is also provided on the top of the mounting box 7 to prevent impurities from falling into the air inlet.

[0043] Specifically, during use, high-temperature steam is ejected from the steam connector 4, passes through the negative pressure chamber 111, and is input into the mixing chamber 112 through the first through hole 311 and is blocked by the material blocking plate 221. A vacuum negative pressure is formed in the negative pressure chamber 111, and the air entering the installation box 7 is sucked into the negative pressure chamber from the gap through the steam port 12.

[0044] Furthermore, the coffee machine foaming device of the present invention also includes a milk tank 8 disposed at the bottom of the mounting box 7. The milk tank 8 is provided with a milk storage chamber 81 for storing milk or dairy products. A milk inlet 13 is provided with a suction pipe 6 that extends into the milk storage chamber 81. When a vacuum negative pressure is formed in the negative pressure chamber 111, the milk inlet 13 draws the milk or dairy products in the milk storage chamber 81 into the negative pressure chamber 111 through the suction pipe 6. Specifically, a base 9 is provided at the bottom of the milk tank 8.

[0045] In summary, in the coffee machine foaming device of the present invention, the steam port 12 sprays high-temperature steam and passes through the negative pressure chamber 111, enters the mixing chamber 112 through the first through hole 311, so that the negative pressure chamber 111 forms a vacuum negative pressure, and sucks in air and milk and then inputs them into the mixing chamber 112; the baffle plate 221 blocks the high-temperature steam, air and milk entering the mixing chamber 112 from the first through hole 311, thereby extending the residence time of the high-temperature steam, air and milk in the mixing chamber 112, so that the high-temperature steam, air and milk are mixed more fully, which not only improves the foaming effect, but also ensures the stability of the foaming effect and the taste and quality of the coffee beverage, thereby enhancing the user experience. It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0046] It should be understood that the terms "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the modules or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, in the description of the present invention, “a plurality of” and “a plurality of” mean two or more, unless otherwise clearly and specifically defined.

[0048] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A coffee machine foaming device, characterized in that: include: A foamer, which is provided with a cavity, a steam port and a milk inlet; A guide member is disposed in the cavity, wherein one side of the guide member and one end of the cavity form a negative pressure cavity; the milk inlet and the steam outlet are both connected to the negative pressure cavity; a material stopping bracket disposed in the cavity, wherein one side of the material stopping bracket and the other side of the guide member form a mixing chamber; the other side of the material stopping bracket and the other end of the cavity form a milk foam output end; The guide member is provided with a first through hole which is in a straight line with the steam port, and the first through hole connects the negative pressure chamber with the mixing chamber; the material blocking plate which blocks the first through hole is provided on the material blocking bracket.

2. The coffee machine foaming device according to claim 1, characterized in that: The guide member is provided with a protrusion, the protrusion is provided with the first through hole, and the protrusion is further provided with a guide arc surface on the side facing the steam port, and the guide arc surface and one end of the cavity form the negative pressure cavity.

3. The coffee machine foaming device according to claim 2, characterized in that: It also includes a connecting tube arranged in the cavity, the connecting tube is formed with a second through hole connecting the mixing cavity and the milk foam output end, the material blocking bracket is arranged in the second through hole, and one side of the material blocking bracket and the protrusion form the mixing cavity.

4. The coffee machine foaming device according to claim 3, characterized in that: The material blocking bracket further includes a connecting rod, and the material blocking plate is connected to the inner wall of the second through hole via the connecting rod.

5. The coffee machine foaming device according to claim 4, characterized in that: The other side of the material blocking bracket is tapered, and a plurality of connecting rods are provided and arranged circumferentially along the inner wall of the second through hole.

6. The coffee machine foaming device according to any one of claims 1 to 5, characterized in that: The invention also includes a milk foam connector which is arranged at the other end of the cavity and communicates with the milk foam output end, and a sealing ring is provided between the milk foam connector and the inner wall of the cavity.

7. The coffee machine foaming device according to any one of claims 1 to 5, characterized in that: A nozzle is provided at one end of the steam port, and the nozzle extends into the negative pressure chamber; a steam connector for connecting a steam pipe is installed at the other end of the steam port, and a gap for air to enter is provided between the steam connector and the steam port.

8. The coffee machine foaming device according to any one of claims 1 to 5, characterized in that: Also included is an installation box, in which the foamer is arranged.

9. The coffee machine foaming device according to claim 8, characterized in that: An air inlet for air to enter is provided on the top of the installation box.

10. The coffee machine foaming device according to claim 9, characterized in that: It also includes a milk box arranged at the bottom of the installation box, and the milk box is provided with a milk storage cavity; the milk inlet is installed with a straw, and the straw extends into the milk storage cavity.

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