Coffee machine

Abstract

The utility model discloses a coffee machine which comprises a coffee machine body and a milk foam generating device. A steam exhaust pipe is arranged in the coffee machine body, a steam exhaust channel is arranged in the steam exhaust pipe, a control switch is arranged in the steam exhaust channel, a sealing ring is arranged at the steam outlet end of the steam exhaust pipe and abuts against the coffee machine body, and an annular sealing piece extending inwards is arranged on the inner edge of the sealing ring. The milk foam generating device is detachably arranged on the coffee machine body and provided with a steam inlet pipe, a steam opening is formed in the side wall of the steam inlet pipe, and when the milk foam generating device is arranged on the coffee machine body, one end of the steam inlet pipe penetrates through the annular sealing piece to stretch into the steam exhaust channel and touches the control switch, so that the steam exhaust channel is communicated with the steam opening. The inner edge of the annular sealing piece abuts against the outer side wall of the steam inlet pipe. According to the coffee machine, the sealing effect of the joint of the milk foam generating device and the coffee machine body can be improved, and steam is prevented from being sprayed out of the joint of the milk foam generating device and the coffee machine body.

Description

Technical Field

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

[0002] In the related art, a coffee machine is equipped with a milk frothing device, and the steam inlet of the milk frothing device is connected to the steam outlet of the coffee machine. However, the existing connection structure is relatively complex, which affects the sealing effect. In addition, the pressure of the steam discharged from the steam outlet of the coffee machine is very high, which easily causes steam to spray out from the connection between the steam inlet of the milk frothing device and the steam outlet of the coffee machine.

[0003] Therefore, the existing technology needs to be improved and developed. Utility Model Content

[0004] The utility model aims to provide a coffee machine, which can improve the sealing effect of the connection between the milk froth generating device and the coffee machine body, thereby preventing steam from being ejected from the connection between the milk froth generating device and the coffee machine body.

[0005] The utility model provides a coffee machine, which includes: a coffee machine body and a milk frothing device; an exhaust pipe is provided in the coffee machine body, an exhaust channel is provided in the exhaust pipe, a control switch is provided in the exhaust channel, a sealing ring is provided at the steam outlet end of the exhaust pipe, the sealing ring abuts against the coffee machine body, and the inner edge of the sealing ring has an annular sealing sheet extending inwardly; the milk frothing device is detachably arranged on the coffee machine body, the milk frothing device has a steam inlet pipe, and a steam port is formed on the side wall of the steam inlet pipe. When the milk frothing device is arranged on the coffee machine body, one end of the steam inlet pipe passes through the annular sealing sheet and extends into the exhaust channel and touches the control switch, so that the exhaust channel is connected to the steam port, and the inner edge of the annular sealing sheet abuts against the outer wall of the steam inlet pipe.

[0006] According to one embodiment of the present invention, the exhaust passage includes a vertical section and a horizontal section, and the control switch is arranged in the horizontal section.

[0007] According to one embodiment of the present invention, the outlet end of the vertical section has a diameter-reducing section, and the inner diameter of the diameter-reducing section gradually decreases from top to bottom.

[0008] According to one embodiment of the present invention, the above-mentioned control switch includes an elastic member and a plug; one end of the elastic member abuts against the inner wall of the horizontal section, the other end of the elastic member is connected to the plug, and the plug movably abuts against the annular sealing sheet.

[0009] According to one embodiment of the present invention, a mounting plate is detachably mounted on the coffee machine body, and the exhaust pipe is arranged on the mounting plate.

[0010] According to one embodiment of the present invention, the coffee machine body is provided with a notch that is adapted to the shape of the mounting plate, the side wall of the notch has an inwardly protruding ridge, and the side surface of the mounting plate is provided with a groove. When the mounting plate is installed on the coffee machine body, the ridge is located in the groove.

[0011] According to one embodiment of the present invention, a limiting groove is provided on the milk froth generating device, and a limiting block is provided on the coffee machine body. When one end of the steam inlet pipe extends into the steam exhaust channel, the limiting block is located in the limiting groove.

[0012] According to one embodiment of the present invention, the milk froth generating device is provided with an outwardly protruding push rod, and a touch switch is provided in the coffee machine body. After the steam inlet pipe extends into a predetermined position in the steam exhaust channel, the push rod contacts the touch switch.

[0013] According to one embodiment of the present utility model, the above-mentioned milk foam generating device includes a milk box, a cover body, a milk inlet pipe, a foaming pipe and a mixing pipe; the milk box is detachably arranged on the coffee machine body; the cover body is arranged at the upper end opening of the milk box; the milk inlet pipe is located in the milk box; one end of the foaming pipe is located in the cover body, and the other end is exposed in the cover body; the mixing pipe is arranged in the cover body, and the mixing pipe has a steam inlet, an air inlet, a milk inlet and a foaming port, the steam inlet is connected to the steam inlet pipe, the air inlet is connected to the air inlet opened in the side wall of the cover body, the milk inlet is connected to the milk inlet pipe, and the foaming port is connected to one end of the foaming pipe.

[0014] According to one embodiment of the present invention, the above-mentioned milk froth generating device also includes an adjusting rod, one end of the adjusting rod is connected to the frothing tube, and the other end of the adjusting rod is exposed from the cover body, and rotating the other end of the adjusting rod can drive the frothing tube to rotate.

[0015] The beneficial effect of the present invention is that the coffee machine of the present invention improves the sealing effect of the connection between the milk frothing device and the coffee machine body by redesigning the structure of the coffee machine body and the milk frothing device, thereby preventing steam from being ejected from the connection between the milk frothing device and the coffee machine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 This is a schematic structural diagram of a coffee machine in an embodiment of the present utility model;

[0018] Figure 2 This is an exploded schematic diagram of a coffee machine according to an embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional view of a coffee machine according to an embodiment of the present invention;

[0020] Figure 4 for Figure 3 A partial enlarged view of

[0021] Figure 5 This is a cross-sectional view of the coffee machine body and the milk frothing device separated in an embodiment of the present invention;

[0022] Figure 6 This is a schematic structural diagram of a milk foam generating device in an embodiment of the present utility model;

[0023] Figure 7 This is a cross-sectional view of the milk foam generating device in the embodiment of the present invention. Figure 1 ;

[0024] Figure 8 This is a cross-sectional view of the milk foam generating device in the embodiment of the present invention. Figure 2 ;

[0025] Figure 9 This is a structural diagram of the coffee machine body and the mounting plate separated in an embodiment of the present utility model;

[0026] Figure 10 for Figure 9 A partial enlarged view of .

[0027] Description of reference numerals:

[0028] 1. Coffee machine body; 11. Exhaust pipe; 111. Exhaust channel; 1111. Vertical section; 11111. Variable diameter section; 1112. Horizontal section; 12. Notch; 121. Raised strip; 13. Limit block; 2. Milk frothing device; 21. Steam inlet pipe; 211. Steam outlet; 22. Limiting groove; 23. Ejector rod; 24. Milk box; 25. Cover; 26. Milk inlet pipe; 27. Foaming pipe; 28. Mixing pipe; 281. Steam inlet; 282. Air inlet; 283. Milk inlet; 284. Foaming outlet; 29. ​​Adjusting lever; 3. Control switch; 31. Elastic member; 32. Plug; 4. Sealing ring; 41. Annular sealing disc; 5. Mounting plate; 51. Groove; 6. Touch switch. DETAILED DESCRIPTION

[0029] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0033] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4as well as Figure 5 As shown, the present invention provides a coffee machine comprising a coffee machine body 1 and a milk frothing device 2. A steam exhaust pipe 11 is provided within the coffee machine body 1, defining a steam exhaust passage 111 therein. A control switch 3 is provided within the steam exhaust passage 111. A sealing ring 4 is provided at the steam outlet end of the steam exhaust pipe 11, which abuts the coffee machine body 1. The inner edge of the sealing ring 4 includes an inwardly extending annular sealing sheet 41. The milk frothing device 2 is detachably mounted on the coffee machine body 1. The milk frothing device 2 comprises a steam inlet pipe 21, with a steam outlet 211 defined in a sidewall thereof. When the milk frothing device 2 is mounted on the coffee machine body 1, one end of the steam inlet pipe 21 passes through the annular sealing sheet 41, extends into the steam exhaust passage 111, and contacts the control switch 3, thereby connecting the steam exhaust passage 111 to the steam outlet 211. Furthermore, the inner edge of the annular sealing sheet 41 abuts against the outer wall of the steam inlet pipe 21.

[0034] In actual application, a steam generating device is provided in the coffee machine body 1, and the steam outlet of the steam generating device is connected to the exhaust pipe 11. The steam generated by the steam generating device enters the milk foam generating device 2 through the steam outlet of the steam generating device, the exhaust channel 111, the steam port 211 and the steam inlet pipe 21, so that the milk foam generating device 2 generates milk foam.

[0035] The above technical solution not only simplifies the structure of the connection between the milk frothing device 2 and the coffee machine body 1, but also enables a good seal between the milk frothing device 2 and the coffee machine body 1 when the milk frothing device 2 is installed on the coffee machine body 1, thereby preventing steam from being ejected from the connection between the milk frothing device 2 and the coffee machine body 1.

[0036] like Figure 6 、 Figure 7 and Figure 8 As shown, the milk frothing device 2 includes a milk box 24, a cover 25, a milk inlet pipe 26, a frothing pipe 27, and a mixing pipe 28. The milk box 24 is detachably mounted on the coffee machine body 1. The cover 25 is positioned at the upper opening of the milk box 24. The milk inlet pipe 26 is located within the milk box 24. One end of the frothing pipe 27 is located within the cover 25, with the other end exposed outside the cover 25. The mixing pipe 28 is positioned within the cover 25 and includes a steam inlet 281, an air inlet 282, a milk inlet 283, and a frothing pipe 284. The steam inlet 281 is connected to the steam inlet pipe 21, the air inlet 282 is connected to the air inlet provided in the side wall of the cover 25, the milk inlet 283 is connected to the milk inlet pipe 26, and the frothing pipe 284 is connected to one end of the frothing pipe 27.

[0037] In a specific application, the steam generated by the steam generating device enters the mixing tube 28 through the steam outlet of the steam generating device, the exhaust channel 111, the steam port 211, the steam inlet pipe 21 and the steam inlet 281 in sequence. The steam is mixed with the air entering the mixing tube 28 through the air inlet 282 and the milk entering the mixing tube 28 through the milk inlet 283 and heated to form milk foam, which is then discharged through the foam outlet 284 and the foam outlet pipe 27.

[0038] In some preferred embodiments, the milk frothing device 2 further includes an adjusting rod 29. One end of the adjusting rod 29 is connected to the frothing tube 27, and the other end of the adjusting rod 29 is exposed from the cover 25. Rotating the other end of the adjusting rod 29 can drive the frothing tube 27 to rotate. In practical applications, by rotating the adjusting rod 29 to drive the frothing tube 27 to rotate, the position of the outlet of the frothing tube 27 can be changed for easier use.

[0039] like Figure 4 and Figure 5 As shown, in some preferred embodiments, the exhaust passage 111 includes a vertical section 1111 and a horizontal section 1112, and the control switch 3 is disposed within the horizontal section 1112. In specific applications, by designing the exhaust passage 111 as the vertical section 1111 and the horizontal section 1112, not only is it easier to install the control switch 3, but it can also change the flow direction of the steam, reducing the impact of the steam pressure on the connection between the milk frothing device 2 and the coffee machine body 1, further ensuring a sealed connection between the milk frothing device 2 and the coffee machine body 1.

[0040] like Figure 4 and Figure 5 As shown, in some preferred embodiments, the outlet end of the vertical section 1111 has a reducing section 11111, where the inner diameter of the reducing section 11111 gradually decreases from top to bottom. Providing the reducing section 11111, whose inner diameter gradually decreases from top to bottom, at the outlet end of the vertical section 1111 increases the flow rate of steam from the vertical section 1111 into the horizontal section 1112, thereby accelerating the frothing speed of the milk frothing device 2.

[0041] like Figure 4 and Figure 5As shown, in some preferred embodiments, the control switch 3 includes an elastic member 31 and a plug 32. One end of the elastic member 31 abuts the inner sidewall of the horizontal section 1112, and the other end of the elastic member 31 is connected to the plug 32. The plug 32 movably abuts the annular sealing plate 41. In a specific application, when the milk frothing device 2 is installed on the coffee machine body 1, one end of the steam inlet pipe 21 pushes the plug 32 to move. At this time, the elastic member 31 is compressed, allowing steam generated by the steam generating device to enter the steam inlet pipe 21 through the steam exhaust channel 111 and the steam port 211. When the milk frothing device 2 is removed from the coffee machine body 1, the plug 32 loses the push of the steam inlet pipe 21, and the elastic member 31 returns to its uncompressed state. The elastic force of the elastic member 31 pushes the plug 32 to move, causing it to abut against the annular sealing plate 41, thereby sealing the steam outlet on the coffee machine body 1. This prevents steam from spraying or leaking when the steam inlet pipe 21 is removed. Specifically, the elastic member 31 may be a spring.

[0042] In specific applications, since the space inside the coffee machine body 1 is too small to install the exhaust pipe 11, in some preferred embodiments, such as Figure 9 and Figure 10 As shown, the coffee machine body 1 is detachably mounted with a mounting plate 5, and the exhaust pipe 11 is provided on the mounting plate 5. With the above technical solution, the exhaust pipe 11 can be first mounted on the mounting plate 5, and then the mounting plate 5 is mounted on the coffee machine body 1, making installation easier.

[0043] Specifically, the coffee machine body 1 is provided with a notch 12 that matches the shape of the mounting plate 5. The sidewalls of the notch 12 have inwardly projecting ridges 121. The side surfaces of the mounting plate 5 are provided with grooves 51. When the mounting plate 5 is mounted on the coffee machine body 1, the ridges 121 are located within the grooves 51. This technical solution allows the mounting plate 5 to slide relative to the coffee machine body 1, facilitating quick installation of the mounting plate 5 at a predetermined position on the coffee machine body 1 and improving assembly efficiency.

[0044] like Figure 2 As shown, in some preferred embodiments, the milk frothing device 2 is provided with a retaining groove 22, and the coffee machine body 1 is provided with a retaining block 13. When one end of the steam inlet pipe 21 extends into the steam exhaust passage 111, the retaining block 13 is located within the retaining groove 22. In specific applications, when the milk frothing device 2 is placed at a predetermined position on the coffee machine body 1, the retaining block 13 cooperates with the retaining groove 22 to limit the axial position of the milk frothing device 2 in the steam inlet pipe 21. This prevents excessive steam pressure from causing the milk frothing device 2 to shift axially in the steam inlet pipe 21, potentially leading to steam being ejected from the connection between the milk frothing device 2 and the coffee machine body 1. Specifically, the retaining groove 22 can be provided at the bottom of the milk container 24.

[0045] like Figure 6 and Figure 10 As shown, in some preferred embodiments, the milk frothing device 2 is provided with an outwardly protruding push rod 23, and a touch switch 6 is provided within the coffee machine body 1. When the steam inlet pipe 21 extends into a predetermined position within the steam exhaust passage 111, the push rod 23 contacts the touch switch 6. In specific applications, the touch switch 6 is electrically connected to the steam generating device within the coffee machine body 1. When the milk frothing device 2 is placed in a predetermined position within the coffee machine body 1, i.e., when the steam inlet pipe 21 extends into a predetermined position within the steam exhaust passage 111, causing the push rod 23 to contact the touch switch 6, the steam generating device is energized and enabled to operate. This prevents the steam generating device from energizing and operating even if the milk frothing device 2 is not properly installed, thereby improving user safety.

[0046] In summary, in one or more embodiments of the present invention, the coffee machine of the present invention improves the sealing effect of the connection between the milk frothing device and the coffee machine body by redesigning the structure of the coffee machine body and the milk frothing device, thereby preventing steam from being ejected from the connection between the milk frothing device and the coffee machine body.

[0047] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A coffee machine, characterized in that: include: A coffee machine body (1) and a milk froth generating device (2); a steam exhaust pipe (11) is provided in the coffee machine body (1), a steam exhaust channel (111) is provided in the steam exhaust pipe (11), a control switch (3) is provided in the steam exhaust channel (111), a sealing ring (4) is provided at the steam outlet end of the steam exhaust pipe (11), the sealing ring (4) is in contact with the coffee machine body (1), and the inner edge of the sealing ring (4) has an annular sealing sheet (41) extending inwardly; the milk froth generating device (2) is detachably arranged on the coffee machine body (1) ), the milk froth generating device (2) has a steam inlet pipe (21), and a steam outlet (211) is provided on the side wall of the steam inlet pipe (21). When the milk froth generating device (2) is arranged on the coffee machine body (1), one end of the steam inlet pipe (21) passes through the annular sealing sheet (41) and extends into the steam exhaust channel (111) and touches the control switch (3), so that the steam exhaust channel (111) is communicated with the steam outlet (211), and the inner edge of the annular sealing sheet (41) abuts against the outer side wall of the steam inlet pipe (21).

2. The coffee machine according to claim 1, wherein The exhaust passage (111) comprises a vertical section (1111) and a horizontal section (1112), and the control switch (3) is arranged in the horizontal section (1112).

3. The coffee machine according to claim 2, characterized in that The outlet end of the vertical section (1111) has a diameter-reducing section (11111), and the inner diameter of the diameter-reducing section (11111) gradually decreases from top to bottom.

4. The coffee machine according to claim 2, wherein: The control switch (3) comprises an elastic member (31) and a plug (32); one end of the elastic member (31) abuts against the inner wall of the horizontal section (1112), the other end of the elastic member (31) is connected to the plug (32), and the plug (32) movably abuts against the annular sealing sheet (41).

5. The coffee machine according to claim 1, wherein A mounting plate (5) is detachably mounted on the coffee machine body (1), and the exhaust pipe (11) is arranged on the mounting plate (5).

6. The coffee machine according to claim 5, characterized in that The coffee machine body (1) is provided with a notch (12) that matches the shape of the mounting plate (5); the side wall of the notch (12) has an inwardly protruding ridge (121); the side surface of the mounting plate (5) is provided with a groove (51); when the mounting plate (5) is mounted on the coffee machine body (1), the ridge (121) is located in the groove (51).

7. The coffee machine according to claim 1, wherein The milk froth generating device (2) is provided with a limiting groove (22), and the coffee machine body (1) is provided with a limiting block (13); when one end of the steam inlet pipe (21) extends into the steam exhaust channel (111), the limiting block (13) is located in the limiting groove (22).

8. The coffee machine according to claim 1, wherein The milk froth generating device (2) is provided with an outwardly protruding push rod (23), and a touch switch (6) is provided in the coffee machine body (1). After the steam inlet pipe (21) extends into a predetermined position in the steam exhaust channel (111), the push rod (23) contacts the touch switch (6).

9. The coffee machine according to claim 1, wherein The milk foam generating device (2) comprises a milk box (24), a cover (25), a milk inlet pipe (26), a foam outlet pipe (27) and a mixing pipe (28); the milk box (24) is detachably arranged on the coffee machine body (1); the cover (25) is arranged at the upper end opening of the milk box (24); the milk inlet pipe (26) is located in the milk box (24); one end of the foam outlet pipe (27) is located in the cover (25), and the other end thereof is exposed from the cover (25); the mixing pipe (28) is arranged in a detachable manner on the coffee machine body (1 ... the foam outlet pipe (27) is located in the cover (25), and the other end thereof is exposed from the cover (25); the mixing pipe (28) is arranged in a detachable manner on the coffee machine body (1); the milk inlet pipe (26) is located in the milk box (24); the foam outlet pipe (27) is located in the cover (25), and the other end thereof is exposed from the cover (25); the mixing pipe (28) is arranged in a detachable manner on the coffee machine body (1); the milk inlet pipe (26) is located in the milk box (24); the milk inlet pipe (26) is located in the milk box (24); the milk inlet pipe (27) is located in the cover (25), and the other end thereof is exposed from the cover (25); the mixing pipe (28) is arranged in a detachable manner on the coffee machine body (1); the milk inlet pipe (26) is located in the milk box (24); the milk inlet pipe (26) is located in the (28) is arranged in the cover body (25), and the mixing tube (28) has a steam inlet (281), an air inlet (282), a milk inlet (283) and a bubble outlet (284). The steam inlet (281) is connected to the steam inlet pipe (21), the air inlet (282) is connected to the air inlet opened on the side wall of the cover body (25), the milk inlet (283) is connected to the milk inlet pipe (26), and the bubble outlet (284) is connected to one end of the bubble outlet pipe (27).

10. The coffee machine according to claim 9, characterized in that The milk frothing device (2) further comprises an adjusting rod (29), one end of which is connected to the frothing tube (27), and the other end of which is exposed from the cover (25). Rotating the other end of the adjusting rod (29) can drive the frothing tube (27) to rotate.

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