Milk foaming device

Abstract

The utility model relates to the beverage processing technology, and provides a milk foaming device which comprises a machine shell and a foaming mechanism installed in the machine shell, a through groove is formed in the machine shell, a connecting part is arranged on one side of the through groove, the foaming mechanism comprises a milk foam air plug, a connector is installed in an inner cavity of the milk foam air plug, and the connector is connected with the machine shell. And an air inlet knob is installed at one end of the connector, one end of the air inlet knob penetrates through the through groove to be arranged outside the machine shell, and a matching part matched with the connecting part is arranged on one side of the air inlet knob. According to the milk foam air plug, a user can rotate the air inlet knob to enable the matching part and the connecting part to be overlapped with each other, so that the limitation of the air inlet knob in the through groove is relieved, the connector can be driven to be separated from the milk foam air plug by pulling the air inlet knob, and the milk foam air plug and the connector are exposed outside; and therefore, a blocked milk foam air plug and a connector adhered with milk can be conveniently cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of beverage processing, in particular to a milk foaming device. Background Art

[0002] Milk foaming devices are widely used in families, cafes and the catering industry for making various milk-based beverages with rich milk foam, such as lattes, cappuccinos, etc. Such devices usually include a foaming mechanism that generates milk foam by injecting steam and air into the milk.

[0003] As the usage time increases, the air plug of the milk foaming device is prone to being blocked by substances in the milk, so that air cannot pass through the air intake passage, affecting the quality of milk foaming, and even only hot milk comes out without milk foam.

[0004] The purpose of the utility model is to solve the problem of inconvenient cleaning of the air intake passage of the milk foaming device with a traditional structure. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problem of inconvenient cleaning of the air intake passage of the milk foaming device with a traditional structure. The utility model adopts the following technical solutions:

[0006] A milk foaming device includes a housing and a foaming mechanism installed in the housing. The housing is provided with a through groove, and a connecting portion is arranged on one side of the through groove. The foaming mechanism includes a milk foam air plug, a connecting head is installed in the inner cavity of the milk foam air plug, an air intake knob is installed at one end of the connecting head, one end of the air intake knob passes through the through groove and is arranged outside the housing, and a matching portion matched with the connecting portion is arranged on one side of the air intake knob.

[0007] In the milk foaming device as described above, the connecting portion is a clamping groove, and the matching portion is a clamping block. The housing includes a milk box, a housing cover covers the top of the milk box, a partition for carrying the foaming mechanism is arranged between the housing cover and the milk box, the milk box and the partition are both provided with the lower half of the through groove, and the housing cover is provided with the upper half of the through groove.

[0008] In the milk foaming device as described above, a convex block for indicating the rotation angle of the air intake knob is fixedly connected to the end of the air intake knob arranged outside the housing, and a mark for indicating the switch direction of the air intake knob is arranged on the side wall of the housing cover.

[0009] In the milk foaming device as described above, at least one positioning block is arranged at one end of the connecting head, and a positioning groove for clamping with the positioning block is arranged on the air intake knob.

[0010] In the milk frothing device as described above, at least one groove is formed at one end of the air inlet knob, and a limit block matching the groove is fixedly connected to the side wall of the connector.

[0011] In the milk frothing device as described above, a through hole is provided at one end of the milk frothing air plug, and at least one air duct for air circulation is provided at one end of the inner cavity of the milk frothing air plug.

[0012] In the milk frothing device as described above, the side wall of the connector is provided with an air inlet channel for air circulation.

[0013] In the milk frothing device as described above, the side wall of the connector is provided with an arc groove, the edge of one end of the connector is provided with a rounded corner, and the diameter of the one end of the connector is shorter than the inner cavity diameter of the milk frothing air plug.

[0014] A milk frothing device as described above, the frothing mechanism includes a spool, the milk frothing air plug is installed in one end of the spool, a steam nozzle is installed in the spool, a steam pipe is installed at one end of the spool, a milk inlet plug is installed at one end of the spool, a flow limiting member is installed in the milk inlet plug, the flow limiting member is made of stainless steel, a straw is installed on one side of the milk inlet plug, a connecting pipe is installed at one end of the spool, a milk frothing tube is installed at one end of the connecting pipe, and a milk frothing tube knob is clamped on one side of the connecting pipe.

[0015] In the milk frothing device as described above, the milk frothing tube is arranged outside the milk box, and the milk box is provided with a storage groove for storing the milk frothing tube.

[0016] Implementing the embodiments of the utility model has the following beneficial effects:

[0017] 1. In the utility model, the user can rotate the air intake knob to make the matching part and the connecting part overlap with each other, thereby releasing the limit of the air intake knob in the through groove. At this time, pulling the air intake knob can drive the connecting head to be disengaged from the milk froth air plug, thereby exposing the milk froth air plug and the connecting head to the outside world, so as to facilitate cleaning of the blocked milk froth air plug and the connecting head with milk stuck on it. The whole disassembly process is simple and convenient, with high stability, which is convenient for users to clean the air intake passage of the milk frothing device.

[0018] 2. In the present invention, the protrusion and the mark indicating the switch direction are used together to display the engagement state of the air intake knob, thereby reminding the user whether the air intake knob is installed in place and preventing the air intake knob and the connector from slipping out of the milk froth air plug.

[0019] In summary, the utility model solves the problem of inconvenience in cleaning the air intake passage of the traditional milk frothing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of a milk foaming device of the present utility model.

[0022] Figure 2 It is a schematic diagram of the structure of the casing of a milk foaming device of the present utility model.

[0023] Figure 3 It is an exploded view of a milk foaming device of the present utility model.

[0024] Figure 4 It is a schematic diagram of the structure after the shell cover and the partition of a milk foaming device of the present utility model are installed together.

[0025] Figure 5 It is a schematic diagram of the structure of the foaming mechanism of a milk foaming device of the present utility model.

[0026] Figure 6 It is an exploded view of the foaming mechanism of a milk foaming device of the present utility model.

[0027] Figure 7 It is a schematic diagram of the structure of the air intake knob and the connector of a milk foaming device of the present utility model.

[0028] Figure 8 It is a schematic diagram of the structure in which the connector of a milk foaming device of the present utility model is installed in the milk foam air plug.

[0029] Figure 9 It is a cross-sectional view of the milk foam air plug of a milk foaming device of the present utility model.

[0030] Figure 10 It is a schematic diagram of the structure of the milk foam tube of a milk foaming device of the present utility model after rotating a certain angle.

[0031] Figure 11 It is a schematic diagram of the structure of the flow limiting member 211 of a milk foaming device of the present utility model. Detailed implementation manners

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] like Figures 1 to 11 As shown, the utility model proposes a milk frothing device, comprising a casing 1 and a frothing mechanism 2 installed in the casing 1, the casing 1 is provided with a through slot 11, a connecting portion 15 is provided on one side of the through slot 11, the frothing mechanism 2 comprises a milk frothing air plug 23, a connecting head 210 is installed in the inner cavity of the milk frothing air plug 23, an air intake knob 24 is installed at one end of the connecting head 210, one end of the air intake knob 24 passes through the through slot 11 and is arranged outside the casing 1, and a matching portion 243 matching the connecting portion 15 is provided on one side of the air intake knob 24. The frothing mechanism 2 is used for frothing milk. The air for frothing milk can be transported into the frothing mechanism 2 through the frothing air plug 23. The connecting head 210 blocks the frothing air plug 23, thereby limiting the flow of air through the frothing air plug 23 and preventing excessive air from entering the frothing mechanism 2 and affecting the frothing quality of the milk. In the use state, the matching portion 243 and the connecting portion 15 do not overlap with each other, so that the matching portion 243 will be blocked by the casing 1 at this time, and the air inlet knob 24 cannot drive the connecting head 210 to escape from the frothing air plug 23. As the usage time increases, the milk foam air plug 23 of the milk foaming device is easily blocked by substances in the milk, so that the air cannot pass through the milk foam air plug 23, affecting the quality of milk foaming. At this time, the user can rotate the air intake knob 24 to make the matching portion 243 overlap with the connecting portion 15, thereby releasing the air intake knob 24 from being limited in the through groove 11. At this time, the air intake knob 24 can be pulled to drive the connector 210 to be removed from the milk foam air plug 23, thereby exposing the milk foam air plug 23 and the connector 210 to the outside, so as to facilitate the cleaning of the blocked milk foam air plug 23 and the connector 210 with milk stuck on it. After cleaning, the connector 210 is reinserted into the milk foam air plug 23, and the air intake knob 24 is rotated to make the matching portion 243 and the connecting portion 15 not overlap each other, thereby preventing the air intake knob 24 and the connector 210 from slipping out. The entire assembly and disassembly process is simple and convenient, with high stability, and is convenient for users to clean the air intake passage of the milk foaming device.

[0034] Further, as a preferred embodiment of the present invention rather than a limitation, the connecting portion 15 is a card slot, the mating portion 243 is a card block, the housing 1 includes a milk box 12, a housing cover 14 is covered on the top of the milk box 12, a partition 13 for carrying the foaming mechanism 2 is arranged between the housing cover 14 and the milk box 12, the milk box 12 and the partition 13 are both provided with the lower half of the through slot 11, the housing cover 14 is provided with the upper half of the through slot 11, and the connecting portion 15 is arranged on the housing cover 14. The milk box 12 is used for carrying milk, and the partition 13 supports the foaming mechanism 2, thereby improving the stability of the foaming mechanism 2. By opening the housing cover 14, the inner cavity of the milk box 12 can be exposed, so as to facilitate the maintenance and cleaning of the milk box 12 and the foaming mechanism 2.

[0035] Optionally, in some embodiments, the connecting portion 15 is a protrusion, the mating portion 243 is a card slot, an annular sliding groove is formed in the side wall of the air intake knob 24, one end of the connecting portion 15 is arranged in the annular sliding groove and is slidably connected with the annular sliding groove, the mating portion 243 is arranged on one side of the annular sliding groove and is communicated with the annular sliding groove. In the normal state, the connecting portion 15 is blocked by the annular sliding groove in the annular sliding groove, so that the air intake knob 24 cannot be taken out of the through slot 11. Only when the air intake knob 24 rotates to make the connecting portion 15 coincide with the mating portion 243 can the air intake knob 24 be pulled out, thereby realizing the detachment of the air intake knob 24 and the connecting head 210 from the milk foam air plug 23, further exposing the internal situation of the milk foam air plug 23, and facilitating the user to clean the air intake passage of the milk foaming device.

[0036] Optionally, in some embodiments, the connecting portion 15 is arranged on the milk box 12.

[0037] Optionally, in some embodiments, both the milk box 12 and the housing cover 14 are provided with partial connecting portions 15.

[0038] Further, as a preferred embodiment of the present invention rather than a limitation, a convex block 244 for indicating the rotation angle of the air intake knob 24 is fixedly connected to the end of the air intake knob 24 arranged outside the housing 1, and a mark for indicating the switch direction of the air intake knob 24 is arranged on the side wall of the housing cover 14. The convex block 244 and the mark for indicating the switch direction are used in cooperation to display the clamping state of the air intake knob 24. Specifically, when the air intake knob 24 is inside the housing 1, the convex block 244 points to the off direction of the mark for indicating the switch direction. When the mating portion 243 and the connecting portion 15 overlap each other, the convex block 244 points to the on direction of the mark for indicating the switch direction, thereby reminding the user whether the installation is in place.

[0039] Further, as a preferred embodiment of the present invention rather than a limitation, at least one positioning block 2102 is provided at one end of the connector 210, and a positioning groove 241 engaged with the positioning block 2102 is provided on the intake air knob 24. There is a snap - fit relationship between the connector 210 and the intake air knob 24. When the user rotates the intake air knob 24, the connector 210 will also rotate accordingly. When the connector 210 or the intake air knob 24 is damaged or worn, the user can replace it without replacing both at the same time, reducing the maintenance cost.

[0040] Optionally, in some embodiments, the connector 210 and the intake air knob 24 are integrally formed, thus avoiding the situation where the intake air knob 24 is damaged during use and the connector 210 remains in the milk foam air plug 23 and cannot be taken out.

[0041] Further, as a preferred embodiment of the present invention rather than a limitation, at least one groove 242 is provided at one end of the intake air knob 24, and a limiting block 2103 engaged with the groove 242 is fixedly connected to the side wall of the connector 210. When the intake air knob 24 rotates, the limiting block 2103 drives the connector 210 to rotate through the groove 242, thereby reducing the load on the positioning block 2102 and extending the service life of the connector 210.

[0042] Further, as a preferred embodiment of the present invention rather than a limitation, a through - hole 232 is provided at one end of the milk foam air plug 23, at least one air duct 231 for air circulation is provided at one end of the inner cavity of the milk foam air plug 23, and an intake air passage 2101 for air circulation is provided on the side wall of the connector 210. During use, air enters the inner cavity of the milk foam air plug 23 through the intake air passage 2101, and then flows through the air duct 231 to the through - hole 232, so that the air enters the foaming mechanism 2 through the through - hole 232.

[0043] Further, as a preferred embodiment of the present invention rather than a limitation, an arc - shaped groove 2104 is provided on the side wall of the connector 210, a rounded corner is provided at the edge of one end of the connector 210, and the diameter of one end of the connector 210 is shorter than the inner cavity diameter of the milk foam air plug 23. When the device is started, external air is sucked into the connector 210. When the air enters the connector 210 and passes through the arc - shaped groove 2104, it is guided to flow towards the inner wall direction of the milk foam air plug 23, so that the air smoothly flows into the air duct 231. The rounded corner guides the air, and the rounded corner can reduce the resistance encountered by the air flow and avoid turbulence. The diameter of one end of the connector 210 is shorter than the inner cavity diameter of the milk foam air plug 23, which can ensure that there is space for air to flow in the milk foam air plug 23.

[0044] Further, as a preferred embodiment of the present invention rather than a limitation, the foaming mechanism 2 includes a four-way joint 21. The milk foam air plug 23 is installed inside one end of the four-way joint 21. A steam nozzle 212 is installed inside the four-way joint 21. A steam pipe 22 is installed at one end of the four-way joint 21. A milk inlet plug 25 is installed at one end of the four-way joint 21. A flow limiter 211 is installed inside the milk inlet plug 25. The material of the flow limiter 211 is stainless steel. A straw 26 is installed on one side of the milk inlet plug 25. A connecting pipe 29 is installed at one end of the four-way joint 21. A milk foam pipe 27 is installed at one end of the connecting pipe 29. A milk foam pipe knob 28 is clamped on one side of the connecting pipe 29. When in use, steam enters the four-way joint 21 from the direction of the steam pipe 22. Further, the steam continues to be conveyed forward through the steam nozzle 212. The steam will form a negative pressure when passing through the four-way joint 21, thereby generating suction, and further sucking the air in the direction of the milk foam air plug 23 into the four-way joint 21. Due to the negative pressure inside the four-way joint 21, milk will enter the four-way joint 21 through the straw 26 and the milk inlet plug 25. The flow limiter 211 is made of stainless steel and can resist the impact when the milk flows, enabling the milk to pass through smoothly. Since the inner cavity diameter of the flow limiter 211 is shorter than the diameter of the milk inlet plug 25, the flow rate of the milk passing through can be controlled, so that the milk entering the four-way joint 21 can be fully mixed with the steam and air to form milk foam. Further, the milk foam is discharged from the foaming mechanism 2 through the milk foam pipe 27.

[0045] Further, as a preferred embodiment of the present invention rather than a limitation, the milk foam pipe 27 is arranged outside the milk box 12, and the milk box 12 is provided with a storage groove 16 for storing the milk foam pipe 27. Arranging the milk foam pipe 27 outside the milk box 12 can facilitate the user to pick up the milk foam. By rotating the milk foam pipe knob 28, the connecting pipe 29 can be driven to rotate, thereby driving the milk foam pipe 27 to rotate, realizing the angle adjustment of the milk foam pipe 27, so as to adapt to milk foam carriers of different heights.

[0046] Example 1:

[0047] The utility model provides a milk foaming device, which comprises a machine shell 1 and a foaming mechanism 2 installed in the machine shell 1. It is characterized in that the machine shell 1 is provided with a through groove 11, one side of the through groove 11 is provided with a connecting part 15, the foaming mechanism 2 comprises a milk foam air plug 23, a connecting head 210 is installed in the inner cavity of the milk foam air plug 23, an air intake knob 24 is installed at one end of the connecting head 210, one end of the air intake knob 24 passes through the through groove 11 and is arranged outside the machine shell 1, and a matching part 243 matched with the connecting part 15 is arranged on one side of the air intake knob 24. The foaming mechanism 2 is used for foaming milk. Air for milk foaming can be conveyed into the foaming mechanism 2 through the milk foam air plug 23. The connecting head 210 blocks the milk foam air plug 23, thereby restricting the air flow through the milk foam air plug 23 and preventing too much air from entering the foaming mechanism 2 and affecting the foaming quality of milk. In the use state, the matching part 243 and the connecting part 15 do not overlap with each other. Therefore, at this time, the matching part 243 will be blocked by the machine shell 1, and the air intake knob 24 cannot drive the connecting head 210 to break away from the milk foam air plug 23. As the use time increases, the milk foam air plug 23 of the milk foaming device is easily blocked by substances in the milk, so that air cannot pass through the milk foam air plug 23, affecting the foaming quality of milk. At this time, the user can rotate the air intake knob 24 to make the matching part 243 and the connecting part 15 overlap with each other, thereby releasing the limit of the air intake knob 24 in the through groove 11. At this time, pulling the air intake knob 24 can drive the connecting head 210 to break away from the milk foam air plug 23, so that the milk foam air plug 23 and the connecting head 210 are exposed to the outside, which is convenient for cleaning the blocked milk foam air plug 23 and the connecting head 210 stained with milk. After cleaning, insert the connecting head 210 back into the milk foam air plug 23 and rotate the air intake knob 24 to make the matching part 243 and the connecting part 15 not overlap with each other, so as to prevent the air intake knob 24 and the connecting head 210 from slipping out. The whole loading and unloading process is simple and convenient, with high stability, and is convenient for the user to clean the air intake passage of the milk foaming device.

[0048] The machine shell 1 comprises a milk box 12, the top of the milk box 12 is covered with a shell cover 14, a partition plate 13 for carrying the foaming mechanism 2 is arranged between the shell cover 14 and the milk box 12, the milk box 12 and the partition plate 13 are both provided with the lower half part of the through groove 11, the shell cover 14 is provided with the upper half part of the through groove 11, and the connecting part 15 is arranged on the shell cover 14. The milk box 12 is used for carrying milk, and the partition plate 13 supports the foaming mechanism 2, thereby improving the stability of the foaming mechanism 2. By opening the shell cover 14, the inner cavity of the milk box 12 can be exposed, which is convenient for maintaining and cleaning the milk box 12 and the foaming mechanism 2.

[0049] One end of the intake knob 24 disposed outside the housing 1 is fixedly connected with a convex block 244 for indicating the rotation angle of the intake knob 24, and an identification for indicating the switch direction of the intake knob 24 is provided on the side wall of the housing cover 14. The convex block 244 and the identification for indicating the switch direction are used in cooperation to display the clamping state of the intake knob 24. Specifically, when the intake knob 24 is inside the housing 1, the convex block 244 points to the "off" direction of the identification for indicating the switch direction. When the engaging portion 243 and the connecting portion 15 overlap each other, the convex block 244 points to the "on" direction of the identification for indicating the switch direction, thereby reminding the user whether the installation is in place.

[0050] At least one positioning block 2102 is provided at one end of the connector 210, and a positioning groove 241 for engaging with the positioning block 2102 is provided on the intake knob 24. The connector 210 and the intake knob 24 are in a clamping relationship. When the user rotates the intake knob 24, the connector 210 will also rotate accordingly. When the connector 210 or the intake knob 24 is damaged or worn, the user can replace it without replacing both at the same time, reducing the maintenance cost.

[0051] At least one groove 242 is provided at one end of the intake knob 24, and a limiting block 2103 matching the groove 242 is fixedly connected to the side wall of the connector 210. When the intake knob 24 rotates, the limiting block 2103 drives the connector 210 to rotate through the groove 242, thereby reducing the load on the positioning block 2102 and extending the service life of the connector 210.

[0052] A through hole 232 is provided at one end of the milk foam air plug 23, at least one air duct 231 for air circulation is provided at one end of the inner cavity of the milk foam air plug 23, and an air intake passage 2101 for air circulation is provided on the side wall of the connector 210. During use, air enters the inner cavity of the milk foam air plug 23 through the air intake passage 2101, and then flows through the air duct 231 to the through hole 232, so that the air enters the foaming mechanism 2 through the through hole 232.

[0053] An arc groove 2104 is provided on the side wall of the connector 210, a fillet is provided at the edge of one end of the connector 210, and the diameter of one end of the connector 210 is shorter than the inner cavity diameter of the milk foam air plug 23. When the device is started, external air is sucked into the connector 210. When the air enters the connector 210 and passes through the arc groove 2104, it is guided to flow towards the inner wall direction of the milk foam air plug 23, so that the air smoothly flows into the air duct 231. By guiding the air through the fillet, the fillet can reduce the resistance encountered by the air flow and avoid turbulence. The diameter of one end of the connector 210 is shorter than the inner cavity diameter of the milk foam air plug 23, which can ensure that there is space for the air to flow inside the milk foam air plug 23.

[0054] The foaming mechanism 2 includes a four-way joint 21. The milk foam air plug 23 is installed inside one end of the four-way joint 21. A steam nozzle 212 is installed inside the four-way joint 21. A steam pipe 22 is installed at one end of the four-way joint 21. A milk inlet plug 25 is installed at one end of the four-way joint 21. A flow restrictor 211 is installed inside the milk inlet plug 25. The material of the flow restrictor 211 is stainless steel. A straw 26 is installed on one side of the milk inlet plug 25. A connecting pipe 29 is installed at one end of the four-way joint 21. A milk foam pipe 27 is installed at one end of the connecting pipe 29. A milk foam pipe knob 28 is snap-connected to one side of the connecting pipe 29. During use, steam enters the four-way joint 21 from the direction of the steam pipe 22. Further, the steam continues to be transported forward through the steam nozzle 212. The steam will form a negative pressure when passing through the four-way joint 21, thereby generating suction, and further sucking the air in the direction of the milk foam air plug 23 into the four-way joint 21. Due to the negative pressure inside the four-way joint 21, milk will enter the four-way joint 21 through the straw 26 and the milk inlet plug 25. The flow restrictor 211 is made of stainless steel and can withstand the impact when the milk flows, enabling the milk to pass through smoothly. Since the inner cavity diameter of the flow restrictor 211 is shorter than the diameter of the milk inlet plug 25, the flow rate of the milk passing through can be controlled, so that the milk entering the four-way joint 21 can be fully mixed with the steam and air to form milk foam. Further, the milk foam is discharged from the foaming mechanism 2 through the milk foam pipe 27.

[0055] The milk foam pipe 27 is arranged outside the milk box 12. The milk box 12 is provided with a storage groove 16 for storing the milk foam pipe 27. Arranging the milk foam pipe 27 outside the milk box 12 can facilitate the user to pick up the milk foam. By rotating the milk foam pipe knob 28, the connecting pipe 29 can be driven to rotate, thereby driving the milk foam pipe 27 to rotate, realizing the angle adjustment of the milk foam pipe 27, so as to adapt to milk foam carriers of different heights.

[0056] The implementation manner of Embodiment 2 is as follows:

[0057] The difference between Embodiment 2 and Embodiment 1 is that the connecting portion 15 is a protrusion, the mating portion 243 is a slot, an annular sliding groove is provided on the side wall of the air inlet knob 24, one end of the connecting portion 15 is arranged in the annular sliding groove and is slidably connected with the annular sliding groove, the mating portion 243 is opened on one side of the annular sliding groove and is communicated with the annular sliding groove. In the normal state, the connecting portion 15 is blocked by the annular sliding groove in the annular sliding groove, so that the air inlet knob 24 cannot be taken out of the through groove 11. Only when the air inlet knob 24 rotates to make the connecting portion 15 coincide with the mating portion 243 can the air inlet knob 24 be pulled out, thereby realizing the detachment of the air inlet knob 24 and the connecting head 210 from the milk foam air plug 23, further exposing the internal situation of the milk foam air plug 23, and facilitating the user to clean the air inlet passage of the milk foaming device.

[0058] The implementation manner of Embodiment 2 is as follows:

[0059] The difference between the second embodiment and the first embodiment is that the connector 210 and the air inlet knob 24 are integrally formed, thereby avoiding the situation in which the air inlet knob 24 is damaged during use and the connector 210 is left in the milk froth air plug 23 and cannot be removed.

[0060] Specifically, the working principle of the present invention is as follows: when in use, steam enters the spool 21 from the direction of the steam pipe 22, and further the steam is transported forward through the steam nozzle 212. The steam forms a negative pressure when passing through the spool 21, thereby generating suction, and further sucking the air in the direction of the milk foam air plug 23 into the spool 21. Due to the negative pressure in the spool 21, milk enters the spool 21 through the straw 26 and the milk inlet plug 25. The flow limiting member 211 is made of stainless steel and can withstand the impact of the milk flow, allowing the milk to pass smoothly. Since the inner cavity diameter of the flow limiting member 211 is shorter than the diameter of the milk inlet plug 25, the flow rate of the milk can be controlled, so that the milk entering the spool 21 can be fully mixed with the steam and air to form milk foam, and the milk foam is further discharged from the frothing mechanism 2 through the milk foam tube 27.

[0061] In the use state, the matching portion 243 and the connecting portion 15 do not overlap each other, so that the matching portion 243 is blocked by the housing 1 and the air inlet knob 24 cannot drive the connecting head 210 to escape from the milk froth air plug 23 . As the usage time increases, the milk foam air plug 23 of the milk foaming device is easily blocked by substances in the milk, so that the air cannot pass through the milk foam air plug 23, affecting the quality of milk foaming. At this time, the user can rotate the air intake knob 24 to make the matching portion 243 overlap with the connecting portion 15, thereby releasing the air intake knob 24 from being limited in the through groove 11. At this time, the air intake knob 24 can be pulled to drive the connector 210 to be removed from the milk foam air plug 23, thereby exposing the milk foam air plug 23 and the connector 210 to the outside, so as to facilitate the cleaning of the blocked milk foam air plug 23 and the connector 210 with milk stuck on it. After cleaning, the connector 210 is reinserted into the milk foam air plug 23, and the air intake knob 24 is rotated to make the matching portion 243 and the connecting portion 15 not overlap each other, thereby preventing the air intake knob 24 and the connector 210 from slipping out. The entire assembly and disassembly process is simple and convenient, with high stability, and is convenient for users to clean the air intake passage of the milk foaming device.

[0062] In summary, the utility model solves the problem of inconvenience in cleaning the air intake passage of the traditional milk frothing device.

[0063] It should be understood that in the present utility model, terms such as "first" and "second" are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present utility model, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information. In addition, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0064] The above is the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present utility model.

Claims

1. A milk foaming device, comprising a housing (1) and a foaming mechanism (2) installed in the housing (1), characterized in that, The housing (1) is provided with a through groove (11). One side of the through groove (11) is provided with a connecting portion (15). The foaming mechanism (2) includes a milk foam air plug (23). A connecting head (210) is installed in the inner cavity of the milk foam air plug (23). An air intake knob (24) is installed at one end of the connecting head (210). One end of the air intake knob (24) passes through the through groove (11) and is arranged outside the housing (1). One side of the air intake knob (24) is provided with a matching portion (243) that matches the connecting portion (15). The housing (1) includes a milk box (12).

2. The milk foaming device according to claim 1, characterized in that, The connecting portion (15) is a clamping groove, and the matching portion (243) is a clamping block. A housing cover (14) covers the top of the milk box (12). A partition plate (13) for carrying the foaming mechanism (2) is arranged between the housing cover (14) and the milk box (12). The milk box (12) and the partition plate (13) are both provided with the lower half of the through groove (11), and the housing cover (14) is provided with the upper half of the through groove (11).

3. The milk foaming device according to claim 2, characterized in that, One end of the air intake knob (24) arranged outside the housing (1) is fixedly connected with a convex block (244) for indicating the rotation angle of the air intake knob (24). A side wall of the housing cover (14) is provided with a mark for indicating the switch direction of the air intake knob (24).

4. A milk foaming device according to claim 1, characterized in that, One end of the connecting head (210) is provided with at least one positioning block (2102), and the air intake knob (24) is provided with a positioning groove (241) that is clamped with the positioning block (2102).

5. A milk foaming device according to claim 1, characterized in that, One end of the air intake knob (24) is provided with at least one groove (242), and a side wall of the connecting head (210) is fixedly connected with a limiting block (2103) that matches the groove (242).

6. A milk foaming device according to claim 1, characterized in that, One end of the milk foam air plug (23) is provided with a through hole (232), and at least one air duct (231) for air circulation is arranged at one end of the inner cavity of the milk foam air plug (23).

7. A milk foaming device according to claim 1, characterized in that, An air intake channel (2101) for air circulation is arranged on a side wall of the connecting head (210).

8. The milk foaming device according to claim 1, characterized in that, An arc groove (2104) is arranged on a side wall of the connecting head (210). The edge of one end of the connecting head (210) is provided with a fillet, and the diameter of one end of the connecting head (210) is shorter than the inner cavity diameter of the milk foam air plug (23).

9. The milk foaming device according to claim 1, characterized in that, The foaming mechanism (2) includes a four-way joint (21). The milk foam air plug (23) is installed inside one end of the four-way joint (21). A steam nozzle (212) is installed inside the four-way joint (21). A steam pipe (22) is installed at one end of the four-way joint (21). A milk inlet plug (25) is installed at one end of the four-way joint (21). A flow limiting member (211) is installed inside the milk inlet plug (25). The material of the flow limiting member (211) is stainless steel. A straw (26) is installed on one side of the milk inlet plug (25). A connecting pipe (29) is installed at one end of the four-way joint (21). A milk foam pipe (27) is installed at one end of the connecting pipe (29). A milk foam pipe knob (28) is clamped on one side of the connecting pipe (29).

10. A milk foaming device according to claim 9, characterized in that, The milk foam pipe (27) is arranged outside the milk box (12). The milk box (12) is provided with a storage groove (16) for storing the milk foam pipe (27).

Images