Milk frother air intake system and coffee machine

Abstract

The utility model discloses a kind of milk frother air intake system and coffee machine, including milk frothing device, air inlet cover, the milk frothing device includes milk box (20), support, support upper cover (10), milk frothing tube (40) being set on support, the milk frothing tube is respectively connected with milk suction tube (60), steam inlet pipe (30), air inlet cover, milk frothing tube (50), it is characterized by: the milk frothing tube includes air intake cylinder cavity (6), the air intake cylinder cavity is communicated with air intake flow channel (7) on steam inlet pipe (30) by first gap (61), the air inlet cover includes cap (1), mounting sleeve (2), duckbill valve (5), the duckbill valve is installed in mounting sleeve, mounting sleeve one end is fixedly connected with cap, other end is inserted in air intake cylinder cavity (6), air enters air inlet cover inside from first air inlet (101) and passes through duckbill valve (5) and first gap (61) under internal and external pressure difference. The utility model uses the principle of one-way conduction of duckbill valve, so that milk cannot enter air inlet cover inside through duckbill valve, and eliminates the hidden danger of difficult cleaning.

Description

Technical Field

[0001] This utility model relates to the technical field of coffee machines, and in particular to a milk frother air intake system and a coffee machine. Background Technology

[0002] As the demand for high-quality coffee beverages continues to grow, automatic milk frothers on coffee machines are gaining popularity due to their ability to automatically froth milk. Various milk frothers are available on the market, most of which are integrated structures, making it difficult for users to disassemble and clean the internal components. This makes the milk frothers in fully automatic coffee machines prone to hygiene issues, especially the air intake channel, which is connected to the milk suction channel and steam channel. Once milk is sucked into the air intake, it is difficult to clean thoroughly and is prone to mold growth. Therefore, improvements in structural design are needed. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a milk frother air intake system and coffee machine, which has the advantages of being easy to disassemble and clean and preventing milk from entering the air intake channel, so as to overcome the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A milk frother air intake system includes a milk frothing device and an air intake cover. The milk frothing device includes a milk box, a support, a support cover, and a milk frothing tube disposed on the support. The milk frothing tube is connected to a milk suction tube, a steam inlet tube, an air intake cover, and a milk frothing outlet tube. The milk frothing tube includes an air intake chamber, which is connected to an air intake channel on the steam inlet tube through a first notch. The air intake cover includes a cap, a mounting sleeve, and a duckbill valve. The duckbill valve is installed in the mounting sleeve. One end of the mounting sleeve is fixedly connected to the cap, and the other end is inserted into the air intake chamber. Air enters the air intake cover from the first air inlet and passes through the duckbill valve and the first notch under the pressure difference between the inside and outside.

[0006] The air intake cover also includes a valve cover and an air intake plug. The air intake plug is provided with a second air intake channel. The duckbill valve is provided below the air intake plug. The valve cover is provided with air intake micro-holes.

[0007] The mounting sleeve has an inner step, and the air inlet plug has a lower step. The inner step and the lower step clamp the outer edge of the duckbill valve.

[0008] A pressure ring is provided at the top of the cap, which presses the valve cover against the second air intake channel of the air intake plug. A first positioning structure is provided between the inner wall of the cap and the outer wall of the mounting sleeve to prevent the cap from falling off the mounting sleeve.

[0009] A second positioning structure is provided between the inner wall of the cap and the outer wall of the mounting sleeve to prevent the cap and the mounting sleeve from rotating relative to each other.

[0010] The outer wall of the mounting sleeve is provided with an insertion block, and the upper cover of the support is adapted to be provided with an insertion hole. After the insertion block passes through the insertion hole, it rotates and shifts angularly so that the insertion block is clamped between the top plate of the upper cover of the support and the top edge of the air inlet cavity.

[0011] This utility model further provides a coffee machine, including the above-mentioned milk frother air intake system.

[0012] The above technical solution has the following beneficial effects:

[0013] This invention features an air inlet chamber on the milk frothing tube, with an air inlet cap detachably installed inside the air inlet chamber. A duckbill valve is installed inside the air inlet cap, utilizing the one-way flow principle of the duckbill valve to prevent milk from entering the air inlet cap through the duckbill valve, thus eliminating the potential for difficult cleaning. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0016] Figure 1 This is a cross-sectional view of the coffee machine milk frothing device of this utility model.

[0017] Figure 2 This is a perspective view of the milk frothing device for a coffee machine according to this utility model (with the top cover hidden).

[0018] Figure 3 This is a schematic diagram of the air intake cover structure of this utility model.

[0019] Figure 4 This is an exploded view of the air intake cover of this utility model.

[0020] Figure 5 This is a perspective view of the milk frothing device for a coffee machine according to this utility model. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] See Figures 1-5 As shown, this utility model discloses a milk frother air intake system and its coffee machine. The milk frother air intake system includes a milk frothing device and an air intake cover. The milk frothing device includes a milk container 20, a support, a support cover 10, and a milk frothing tube 40 disposed on the support. The milk frothing tube is connected to a milk suction tube 60, a steam inlet tube 30, the air intake cover, and a milk outlet tube 50. The milk frothing tube includes an air intake chamber 6, which is connected to the air intake channel 7 on the steam inlet tube 30 through a first notch 61. The air intake cover includes a cap 1, a mounting sleeve 2, and a duckbill valve 5. The duckbill valve is installed inside the mounting sleeve, with one end of the mounting sleeve fixedly connected to the cap and the other end inserted into the air intake chamber 6. Air enters the air intake cover from the first air inlet 101 and passes through the duckbill valve 5 and the first notch 61 under the pressure difference between the inside and outside. The steam inlet tube 30 is inserted into the milk frothing tube, and the steam inlet tube is provided with an air intake channel 7 and a milk inlet channel.

[0023] The air intake cover also includes a valve cover 3 and an air intake plug 4. The air intake plug 4 is provided with a second air intake channel 41. The duckbill valve 5 is provided below the air intake plug 4. The valve cover 3 is provided with an air intake micro-hole 31.

[0024] The mounting sleeve 2 is equipped with an inner step 21, and the intake plug 4 is equipped with a lower step. The outer edge of the duckbill valve is clamped by the inner step and the lower step.

[0025] A pressure ring 12 is provided on the top of the cap 1. The pressure ring presses the valve cover against the second air intake passage 41 of the air intake plug 4. A first positioning structure is provided between the inner wall of the cap 1 and the outer wall of the mounting sleeve 2 to prevent the cap from falling off the mounting sleeve.

[0026] A second positioning structure is provided between the inner wall of the cap 1 and the outer wall of the mounting sleeve 2 to prevent the cap and the mounting sleeve from rotating relative to each other.

[0027] The outer wall of the mounting sleeve 2 is provided with an insert block 22, and the support cover 10 is adapted to provide an insertion hole 101. After the insert block 22 passes through the insertion hole 101, it rotates and shifts so that the insert block 22 is clamped between the top plate of the support cover 10 and the top edge of the air intake cavity 6. Thus, the air intake cover is installed on the support cover.

[0028] The air intake system of this milk frother is installed on the main unit of the coffee machine through the steam inlet pipe 30. The steam inlet pipe 30 is connected to the steam generator inside the main unit. When the steam is discharged, it passes through the steam inlet pipe 30. Applying the Venturi principle, the air enters the air intake channel 7 from the air intake cover, and the milk enters the milk intake channel from the milk suction tube. The milk is foamed in the milk frothing tube 40. Finally, the milk foam is discharged from the milk frothing tube 50.

[0029] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. A milk frother air intake system, comprising a milk frothing device and an air intake cover, wherein the milk frothing device comprises a milk box (20), a support, a support cover (10), and a milk frothing tube (40) disposed on the support, the milk frothing tube being connected to a milk suction tube (60), a steam inlet tube (30), the air intake cover, and a milk frothing outlet tube (50), characterized in that: The milk frothing tube includes an air inlet chamber (6), which is connected to the air intake channel (7) on the steam inlet pipe (30) through a first notch (61). The air inlet cover includes a cap (1), an mounting sleeve (2), and a duckbill valve (5). The duckbill valve is installed in the mounting sleeve. One end of the mounting sleeve is fixedly connected to the cap, and the other end is inserted into the air inlet chamber (6). Air enters the air inlet cover from the first air inlet (101) and passes through the duckbill valve (5) and the first notch (61) under the pressure difference between the inside and outside.

2. The milk frother air intake system according to claim 1, characterized in that: The air intake cover also includes a valve cover (3) and an air intake plug (4). The air intake plug (4) is provided with a second air intake channel (41). The duckbill valve (5) is provided below the air intake plug (4). The valve cover (3) is provided with an air intake micro-hole (31).

3. The milk frother air intake system according to claim 2, characterized in that: The mounting sleeve (2) is provided with an inner step (21), and the air inlet plug (4) is provided with a lower step. The outer edge of the duckbill valve is clamped by the inner step and the lower step.

4. The air intake system for a milk frother according to claim 3, characterized in that: A pressure ring (12) is provided on the top of the cap (1). The pressure ring presses the valve cover against the second air intake channel (41) of the air intake plug (4). A first positioning structure is provided between the inner wall of the cap (1) and the outer wall of the mounting sleeve (2) to prevent the cap from falling off the mounting sleeve.

5. The air intake system for a milk frother according to claim 4, characterized in that: A second positioning structure is provided between the inner wall of the cap (1) and the outer wall of the mounting sleeve (2) to prevent the cap and the mounting sleeve from rotating relative to each other.

6. The air intake system for a milk frother according to claim 5, characterized in that: The outer wall of the mounting sleeve (2) is provided with a plug (22), and the upper cover of the support (10) is adapted to provide a plug hole (101). The plug (22) rotates and shifts after passing through the plug hole (101) so that the plug (22) is clamped between the top plate of the upper cover of the support (10) and the top edge of the air inlet cavity (6).

7. A coffee machine, characterized in that: Includes the air intake system of the milk frother as described in any one of claims 1 to 6.

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