Turbulent mixing apparatus, impeller assembly, and milk frother

Abstract

A turbulent mixing apparatus, an impeller assembly, and a milk frother, the turbulent mixing apparatus comprising a support pin assembly, an impeller assembly, and a turbulence assembly. The support pin assembly is fixedly connected to a base wall of the milk frother body. The impeller assembly is sleeved onto the support pin assembly, and the impeller assembly can rotate around the support pin assembly. The turbulence assembly is magnetically connected to the support pin assembly and is located above the impeller assembly, and the magnetic attraction force between the turbulence assembly and the support pin assembly is greater than the sum of the gravitational force of the turbulence assembly and the gravitational force of the impeller assembly; and the magnetic attraction force between the turbulence assembly and the support pin assembly is greater than the centrifugal force of rotation of the impeller assembly, so that the turbulence assembly remains stationary when the impeller assembly stirs milk.

Description

Stirring turbulence device, paddle assembly and milk frother

[0001] The present application claims priority to the Chinese patent application No. 202410459908.2 filed on April 17, 2024 with the China Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of milk frother, for example, to a stirring turbulence device, a paddle assembly and a milk frother. BACKGROUND

[0003] The milk frother is a device that uses a stirring turbulence device placed in a container to continuously stir the milk in the container while generating bubbles in the milk under the heating of a heating assembly.

[0004] In the related art, when a user uses the milk frother, the user directly places the stirring turbulence device at the bottom of the milk frother container, at which time the stirring turbulence device is not fixedly connected to the bottom of the milk frother container. When the user finishes using the milk frother and needs to pour out the milk froth, the stirring turbulence device is easily poured out of the container along with the milk froth, thereby easily causing the user to be injured and increasing the safety hazard. In order to solve the above problem, the stirring turbulence device of some milk frothers on the market is welded to the bottom of the container, which solves the problem of the stirring turbulence device injuring the user, but since the stirring turbulence device is fixedly connected to the bottom of the container, the stirring turbulence device cannot be detached, thereby making it difficult for the user to clean the stirring turbulence device.

[0005] In the related art, the bottom of the milk frother is provided with a fixing assembly for fixing the stirring turbulence device, but during the stirring of the milk by the stirring turbulence device, the stirring turbulence device and the fixing assembly are easily relatively rotated, thereby reducing the stirring turbulence effect of the stirring turbulence device on the milk and reducing the quality of the milk froth.

[0006] Furthermore, the milk froth produced by the milk frother in the related art has poor quality and a large volume; at the same time, the milk froth produced by the current milk frother is difficult to fully mix with air, thereby reducing the uniformity of the milk froth and bringing a poor experience to the user. SUMMARY

[0007] The present application provides a stirring turbulence device configured to stir and disturb the milk in a milk frother body, the stirring turbulence device comprising:

[0008] a thimble assembly disposed in the milk frother body and fixedly connected to the bottom wall of the milk frother body;

[0009] A paddle assembly is sleeved on the thimble assembly and can rotate around the thimble assembly;

[0010] A spoiler assembly is magnetically connected with the thimble assembly and is located above the paddle assembly. The magnetic attraction between the spoiler assembly and the thimble assembly is greater than the sum of the gravity of the spoiler assembly and the gravity of the paddle assembly. The magnetic attraction between the spoiler assembly and the thimble assembly is also greater than the centrifugal force of the rotation of the paddle assembly, so that the spoiler assembly can remain stationary when the paddle assembly stirs the milk.

[0011] The application provides a stirring and disturbing device, which is arranged at the bottom of a milk frother body and is configured to stir and disturb milk in the milk frother body. The stirring and disturbing device comprises:

[0012] A thimble assembly is arranged in the milk frother body and is fixedly connected with the bottom wall of the milk frother body.

[0013] A spoiler assembly comprises a spoiler blade and a first connecting column. The spoiler blade is arranged at the outer circumferential side of the first connecting column. A first counterbore with a polygonal inner wall is formed in the first connecting column. The first counterbore is sleeved on the outer circumferential side of the thimble assembly to prevent the spoiler assembly from rotating relative to the thimble assembly.

[0014] The application provides a paddle assembly, which comprises:

[0015] A magnet box, a second connecting column, a third connecting column, a paddle, and a filter screen.

[0016] The paddle is arranged at the outer circumferential side of the third connecting column. The third connecting column is connected with the magnet box. The second connecting column is located above the third connecting column.

[0017] The filter screen is arranged between the second connecting column and the third connecting column and is sleeved on the third connecting column. The filter screen is configured to filter and cut the milk froth.

[0018] The application provides a milk frother, which comprises a milk frother body and the stirring and disturbing device described above. The stirring and disturbing device is arranged at the bottom of the milk frother body and is configured to stir and disturb milk in the milk frother body. BRIEF DESCRIPTION OF DRAWINGS

[0019] FIG. 1 is a structural schematic view of a milk frother provided in an embodiment of the application;

[0020] FIG. 2 is an exploded view of the milk frother provided in the embodiment of the application;

[0021] Fig. 3 is a sectional view of the milk frother according to an embodiment of the present application;

[0022] Fig. 4 is an enlarged view of part A in Fig. 3;

[0023] Fig. 5 is a structural schematic view of the milk frother body according to an embodiment of the present application;

[0024] Fig. 6 is an exploded view of the milk frother body and the stirring and turbulence device according to an embodiment of the present application;

[0025] Fig. 7 is a sectional view of the milk frother body and the stirring and turbulence device according to an embodiment of the present application;

[0026] Fig. 8 is an enlarged view of part B in Fig. 7;

[0027] Fig. 9 is a structural schematic view of the stirring and turbulence device according to an embodiment of the present application;

[0028] Fig. 10 is an exploded view of the stirring and turbulence device according to an embodiment of the present application;

[0029] Fig. 11 is a structural schematic view of the turbulence assembly according to an embodiment of the present application;

[0030] Fig. 12 is a schematic view of the gap size between the turbulence assembly and the paddle assembly according to an embodiment of the present application.

[0031] Fig. 100, milk frother body; 110, opening; 200, base; 210, driving assembly; 220, driving disc; 230, first magnet; 240, heating disc; 300, thimble assembly; 310, thimble fixing member; 320, thimble sleeve; 330, second suction block; 400, paddle assembly; 410, second connecting column; 420, second clamping rib; 430, third connecting column; 440, second magnet; 450, magnet box; 4501, magnet cover; 4502, magnet seat; 4503, mounting position; 460, paddle; 470, filter screen; 4701, through hole; 480, gasket; 500, turbulence assembly; 510, turbulence blade; 520, first connecting column; 530, first counterbore; 540, second counterbore; 550, first suction block; 560, lifting member; 570, first clamping rib; 600, cover body; 700, handle. DETAILED DESCRIPTION

[0032] To make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more apparent, the technical solutions of the present application will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0033] In the description of the present application, unless specifically defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the present application, unless specifically defined and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or indicates that the first feature is lower in horizontal height than the second feature.

[0035] In the description of the present embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, which is for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are used to distinguish in the description, and have no special meaning.

[0036] In the description of the present embodiment, if not specially stated, the word "a plurality of" means two or more quantities.

[0037] As shown in FIGS. 1-12, the present embodiment provides a stirring disturbance device, which can avoid the phenomenon that the stirring disturbance device falls and injures the user when the user pours milk foam, reduce the security risk; at the same time, the stirring disturbance device can be disassembled, which is convenient for cleaning and improves the user experience.

[0038] As shown in FIGS. 5-8, the present embodiment provides a stirring and turbulence device arranged at the bottom of the milk frother body 100 and configured to stir and disturb the milk in the milk frother body 100. The stirring and turbulence device mainly comprises a thimble assembly 300, a paddle assembly 400 and a turbulence assembly 500. The thimble assembly 300 is arranged in the milk frother body 100 and fixedly connected with the bottom wall of the milk frother body 100. The paddle assembly 400 is sleeved on the thimble assembly 300 and can rotate around the thimble assembly 300. The turbulence assembly 500 is magnetically connected with the thimble assembly 300 and located above the paddle assembly 400. The magnetic attraction force between the turbulence assembly 500 and the thimble assembly 300 is greater than the sum of the gravity of the turbulence assembly 500 and the gravity of the paddle assembly 400. The magnetic attraction force between the turbulence assembly 500 and the thimble assembly 300 is greater than the centrifugal force of the rotating paddle assembly 400, so that the turbulence assembly 500 can remain in a stationary state when the paddle assembly 400 stirs the milk.

[0039] Based on the above design, in the present embodiment, the thimble assembly 300 is welded or integrally formed with the bottom wall of the milk frother body 100. The paddle assembly 400 is sleeved on the thimble assembly 300 and can rotate relative to the thimble assembly 300, thereby realizing the stirring effect on the milk in the milk frother body 100. The turbulence assembly 500 is magnetically connected with the thimble assembly 300 and located above the paddle assembly 400. At the same time, the magnetic attraction force between the turbulence assembly 500 and the thimble assembly 300 is greater than the centrifugal force of the rotating paddle assembly 400, so that when the paddle assembly 400 stirs the milk, the milk is stirred and rotated by the centrifugal force of the paddle assembly 400. In other words, the centrifugal force of the paddle assembly 400 on the milk is less than the magnetic attraction force between the turbulence assembly 500 and the thimble assembly 300, so that the turbulence assembly 500 can remain relatively stationary with the thimble assembly 300 when the paddle assembly 400 stirs the milk, thereby realizing the effect of "paddle assembly 400 rotating and turbulence assembly 500 not moving". It can be understood that when the paddle assembly 400 rotates and thereby stirs the milk, the turbulence assembly 500 does not move, thereby enabling the turbulence assembly 500 to realize the turbulence effect on the rotating milk, minimizing or avoiding the phenomenon of vortex in the milk, so that the milk froth produced by the milk frother is more dense and delicate, and is easy to pull.

[0040] Compared with the related art, the stirring and disturbing device in the embodiment has a simple structure, the disturbing assembly 500 is magnetically connected with the thimble assembly 300, and the magnetic attraction force between the disturbing assembly 500 and the thimble assembly 300 is greater than the sum of the gravity of the disturbing assembly 500 and the gravity of the paddle assembly 400. In this way, when the user pours out the milk foam, the disturbing assembly 500 and the thimble assembly 300 can still be stably magnetically connected, avoiding the phenomenon that the disturbing assembly 500 and the paddle assembly 400 fall and injure the user, and reducing the safety hazard. At the same time, the magnetic attraction force between the disturbing assembly 500 and the thimble assembly 300 is greater than the centrifugal force of the rotation of the paddle assembly 400, so that the disturbing assembly 500 can remain in a stationary state when the paddle assembly 400 stirs the milk, thereby enabling the disturbing assembly 500 to realize the function of disturbing the rotating milk, and making the prepared milk foam more delicate and dense.

[0041] In addition, when the user needs to clean the stirring and disturbing device, the user only needs to lift the disturbing assembly 500, so that the disturbing assembly 500 and the thimble assembly 300 are magnetically disconnected, and then the disturbing assembly 500 and the paddle assembly 400 can be taken out for cleaning. It should be noted that the upward lifting force of the user on the disturbing assembly 500 is greater than the magnetic attraction force between the disturbing assembly 500 and the thimble assembly 300, facilitating the disassembly and cleaning of the disturbing assembly 500 and the paddle assembly 400, and improving the user experience.

[0042] As shown in FIGS. 7-8, in the embodiment, the thimble assembly 300 includes a thimble fixing member 310 and a thimble sleeve 320, the thimble fixing member 310 is fixedly connected with the bottom wall of the milk foam machine body 100, the thimble sleeve 320 is sleeved on the thimble fixing member 310 and is in interference fit with the thimble fixing member 310, and the disturbing assembly 500 is connected with the thimble sleeve 320.

[0043] Specifically, the thimble fixing member 310 in the embodiment can be fixed with the bottom wall of the milk foam machine body 100 by welding or riveting. The thimble fixing member 310 is cylindrical, facilitating the rotation of the paddle assembly 400, and is made of metal material, improving the strength and prolonging the service life. The thimble sleeve 320 is sleeved on the thimble fixing member 310 and is in interference fit with the thimble fixing member 310, thereby avoiding the entry of milk into the gap between the thimble fixing member 310 and the thimble sleeve 320 and prolonging the service life.

[0044] Further, referring to FIGS. 9-11, the outer periphery of the thimble sleeve 320 is polygonal, the disturbing assembly 500 includes a disturbing blade 510 and a first connecting column 520, the disturbing blade 510 is arranged on the outer periphery of the first connecting column 520, the first connecting column 520 is provided with a first counterbore 530, the inner wall of the first counterbore 530 is polygonal, and the first counterbore 530 is sleeved on the outer periphery of the thimble sleeve 320.

[0045] Optionally, the outer periphery of the plunger sleeve 320 is hexagonal, the inner wall of the first counterbore 530 is also hexagonal, and the spoiler assembly 500 is sleeved with the plunger sleeve 320 through the first counterbore 530, so as to avoid the rotation of the spoiler assembly 500 relative to the plunger sleeve 320. Of course, the outer periphery of the plunger sleeve 320 and the inner periphery of the first counterbore 530 can also be provided with other non-circular structures to achieve the effect that the spoiler assembly 500 cannot rotate.

[0046] The stirring and spoiler device provided by the application is arranged at the bottom of the milk frother body and is configured to stir and disturb the milk in the milk frother body. The stirring and spoiler device comprises a plunger assembly and a spoiler assembly. The plunger assembly is arranged in the milk frother body and is fixedly connected to the bottom wall of the milk frother body. The spoiler assembly comprises a spoiler blade and a first connecting column. The spoiler blade is arranged on the outer periphery of the first connecting column. The first connecting column is provided with a first counterbore. The first counterbore is sleeved on the outer periphery of the plunger assembly to avoid the rotation of the spoiler assembly relative to the plunger assembly. The inner wall of the first counterbore is polygonal. The spoiler assembly is sleeved with the plunger assembly through the first counterbore, so as to avoid the rotation of the spoiler assembly relative to the plunger assembly, improve the stability of the spoiler assembly, improve the stirring and disturbing effect on the milk froth, and improve the quality of the milk froth.

[0047] Please continue to refer to FIGS. 7-8. In the embodiment, the first connecting column 520 is further provided with a second counterbore 540. The first connecting column 520 is provided with a first adsorption block 550. The plunger sleeve 320 is provided with a second adsorption block 330. The first adsorption block 550 is magnetically connected to the second adsorption block 330. For example, the first adsorption block 550 and the second adsorption block 330 can both be provided with magnets, and the magnetic properties of the two are opposite, or one of the first adsorption block 550 and the second adsorption block 330 is provided with a magnet, and the other is provided with an iron block.

[0048] In one possible implementation, referring to FIG. 8, the first counterbore 530 and the second counterbore 540 are arranged at intervals. The second counterbore 540 is located above the first counterbore 530. The top of the first counterbore 530 and the bottom of the second counterbore 540 are both located above the paddle 460. The first adsorption block 550 is located on the bottom of the second counterbore 540. The second adsorption block 330 is located on the top of the first counterbore 530.

[0049] Optionally, the first adsorption block 550 and the second adsorption block 330 are arranged opposite to each other, so as to improve the magnetic attraction force between the spoiler assembly 500 and the plunger sleeve 320 and ensure the stability and reliability of the magnetic attraction.

[0050] Optionally, the magnetic flux density between the first adsorption block 550 and the second adsorption block 330 in the embodiment is not less than 100 mT, which ensures that the paddle assembly 400 and the spoiler assembly 500 will not fall off when the user pours the milk foam.

[0051] Optionally, the first adsorption block 550 and the second adsorption block 330 in the embodiment can be provided in multiple numbers, and the multiple first adsorption blocks 550 and the multiple second adsorption blocks 330 are provided in one-to-one correspondence.

[0052] Optionally, the spoiler blades 510 in the embodiment are provided in multiple numbers, and the multiple spoiler blades 510 are uniformly arranged about the axis of the first connecting column 520, thereby improving the spoiler effect of the spoiler blades 510 and reducing or avoiding the phenomenon that the rotating milk generates vortex.

[0053] Illustratively, the spoiler blades 510 in the embodiment can be provided in three, four or five numbers, etc. The inclination angle of each spoiler blade 510 is provided to be between 35° and 55°, the height of the spoiler blade 510 is provided to be between 12 mm and 16 mm, the curvature of the spoiler blade 510 is provided to be between 0° and 8°, and the gap between the spoiler blade 510 and the inner wall of the milk foam machine body 100 is provided to be between 1 mm and 3 mm. Of course, the working personnel can also set the spoiler blades 510 to other numbers and sizes according to actual needs, which will not be described in more detail here.

[0054] Please continue to refer to FIGS. 7-8, in the embodiment, the spoiler assembly 500 further comprises a lifting piece 560, which is connected to the end of the first connecting column 520 away from the paddle assembly 400. The provision of the lifting piece 560 can facilitate the user to take and place the lifting spoiler assembly 500, and facilitate operation.

[0055] Please continue to refer to FIGS. 7-8, in the present embodiment, the outer wall of the first connecting column 520 is provided with a first clamping rib 570, the paddle assembly 400 comprises a second connecting column 410 and a second clamping rib 420, the second connecting column 410 is sleeved on the thimble assembly 300, the second clamping rib 420 is arranged on the inner wall of the second connecting column 410, and the projection area of the first clamping rib 570 is greater than that of the second clamping rib 420 along the height direction of the thimble assembly 300, the first clamping rib 570 passes through the second clamping rib 420 and is located below the second clamping rib 420. Through the arrangement of the first clamping rib 570 and the second clamping rib 420, the snap-fit connection of the paddle assembly 400 and the spoiler assembly 500 is realized, so that when the user lifts the spoiler assembly 500, the first clamping rib 570 and the second clamping rib 420 can be limited to each other, so that the paddle assembly 400 can also be lifted out together. The first clamping rib 570 and the second clamping rib 420 are made of silica gel material, when the user needs to separate the spoiler assembly 500 and the paddle assembly 400, the user only needs to apply a force in the opposite direction to the two, so that the first clamping rib 570 can be pulled out of the second connecting column 410, which is convenient to operate.

[0056] Further, the first clamping rib 570 in the present embodiment is provided in plurality, and the plurality of first clamping ribs 570 are uniformly arranged about the axis of the first connecting column 520. For example, the first clamping rib 570 can be provided in three, four, five or the like. The second clamping rib 420 is annular, the second clamping rib 420 is coaxially arranged with the second connecting column 410, and the first connecting column 520 and the second connecting column 410 are coaxially arranged, which improves the coaxiality of the spoiler assembly 500 and the paddle assembly 400, and avoids the phenomenon of inclination.

[0057] Further, as shown in FIG. 12, the first clamping rib 570 in the embodiment is kept at a preset distance a from the inner wall of the second connecting column 410, and the first clamping rib 570 is kept at a preset distance b from the second clamping rib 420; the paddle assembly 400 comprises a third connecting column 430, the third connecting column 430 is sleeved on the thimble assembly 300, and the third connecting column 430 is connected with and located below the second connecting column 410, and the first connecting column 520 is kept at a preset distance c from the third connecting column 430. In addition, when the first clamping rib 570 is inserted into the second connecting column 410, and the first clamping rib 570 is located below the second clamping rib 420, the outer circumferential side of the first connecting column 520 is also kept a gap from the second clamping rib 420. Through the setting of the above-mentioned gaps, the turbulence assembly 500 and the paddle assembly 400 are kept a certain gap in the height direction and the circumferential direction (it can be understood that the turbulence assembly 500 is supported by the top of the thimble sleeve 320), that is, the turbulence assembly 500 and the paddle assembly 400 do not contact each other, thereby preventing the non-rotating turbulence assembly 500 from interfering with the rotating paddle assembly 400, and also avoiding the generation of noise.

[0058] Exemplarily, the preset distance a in the embodiment can be set to 0.2 mm or more, the preset distance b can be set to 0.6 mm or more, and the preset distance c can be set to 0.5 mm or more.

[0059] Optionally, the diameter size of the stirring and turbulence device in the embodiment is between 1 / 3 and 1 / 2 of the diameter size of the bottom of the milk frother body 100.

[0060] The embodiment also provides a milk frother, which comprises a milk frother body 100 and the stirring and turbulence device described above, and the stirring and turbulence device is arranged at the bottom of the milk frother body 100 and is arranged to stir and turbulence the milk in the milk frother body 100. When a user uses the milk frother to pour out milk froth, the phenomenon that the stirring and turbulence device is poured out and hits the user can be avoided, the safety is improved, the stirring and turbulence device is convenient to disassemble, the user experience is improved, and the cost is saved.

[0061] Specifically, as shown in FIGS. 1-4, FIG. 12, the milk frother comprises a base 200, a milk frother body 100 and the above-mentioned stirring disturbance device. Wherein, the inside of the base 200 is provided with a driving assembly 210, the output shaft of the driving assembly 210 is connected with a driving turntable 220, and the driving turntable 220 is provided with a first magnet 230. The milk frother body 100 is detachably connected with the base 200, the inside of the milk frother body 100 is provided with a thimble assembly 300, and the thimble assembly 300 is fixedly connected with the bottom wall of the milk frother body 100. The stirring disturbance device comprises a paddle assembly 400, and the paddle assembly 400 is sleeved on the thimble assembly 300, and the paddle assembly 400 keeps a preset distance m with the bottom wall of the milk frother body 100; the inside of the paddle assembly 400 is provided with a second magnet 440, and the second magnet 440 is arranged to be magnetically connected with the first magnet 230.

[0062] Based on the above design, in the embodiment, through the magnetic attraction of the first magnet 230 and the second magnet 440, when the driving assembly 210 drives the driving turntable 220 to rotate, the paddle assembly 400 can rotate synchronously, thereby realizing the function that the driving assembly 210 indirectly drives the paddle assembly 400 to rotate. Wherein, the paddle assembly 400 keeps a preset distance m with the bottom wall of the milk frother body 100, thereby facilitating the smooth rotation of the paddle assembly 400, and avoiding the interference between the paddle assembly 400 and the bottom wall of the milk frother body 100.

[0063] Compared with the related art, the milk frother in the embodiment has simple structure, through the setting of the base 200, the milk frother body 100 and the paddle assembly 400, the base 200 is detachably connected with the milk frother body 100, the driving assembly 210 is arranged in the base 200, the driving assembly 210 drives the driving turntable 220 to rotate, the first magnet 230 arranged in the driving turntable 220, and the second magnet 440 arranged in the paddle assembly 400 in the inside of the milk frother body 100, through the magnetic attraction of the first magnet 230 and the second magnet 440, when the driving assembly 210 drives the driving turntable 220 to rotate, the paddle assembly 400 can rotate synchronously, thereby realizing the function that the driving assembly 210 indirectly drives the paddle assembly 400 to rotate. The milk in the milk frother body 100 will not enter the driving assembly 210 in the base 200, thereby playing a certain protection role on the driving assembly 210, prolonging the service life of the driving assembly 210 and improving the safety performance. In addition, the driving assembly 210 in the embodiment will not occupy the space in the milk frother body 100, and the user can prepare more milk froth, thereby improving the user experience.

[0064] The milk frother body 100 in the embodiment is detachably connected with the base 200, so that after the user finishes making the milk froth, the milk frother body 100 can be taken out from the base 200, thereby improving the flexibility of use.

[0065] Optionally, the driving assembly 210 in the embodiment can be provided as a motor.

[0066] Optionally, the first magnet 230 and the second magnet 440 in the embodiment are both provided as a plurality of, for example, four, five, six, etc. The first magnet 230 and the second magnet 440 are one-to-one corresponding, and the first magnet 230 and the second magnet 440 are magnetically opposite.

[0067] Optionally, the distance between the first magnet 230 and the second magnet 440 in the embodiment is provided as 3mm-6mm. When the distance between the first magnet 230 and the second magnet 440 is less than 3mm, the starting torque of the paddle assembly 400 required by the driving assembly 210 will increase; and when the distance between the first magnet 230 and the second magnet 440 is greater than 6mm, the rotational speed of the paddle assembly 400 required by the driving assembly 210 will increase, and the increase of the torque and the rotational speed of the driving assembly 210 will reduce its service life. Therefore, by comprehensively considering that the distance between the first magnet 230 and the second magnet 440 is provided as 3mm-6mm, the service life of the driving assembly 210 can be prolonged while the required milk foam is produced.

[0068] As shown in FIGS. 2-4, the base 200 in the embodiment is further provided with a heating disc 240, which is provided to heat the milk in the milk frother body 100, thereby facilitating the preparation of milk froth drinks of different temperatures. Optionally, the heating temperature range of the heating disc 240 can be provided as 50℃-80℃. The heating disc 240 is electrically connected with the central control screen on the base 200, and the user can selectively decide whether to use the heating disc 240. When the user does not need the heating disc 240 to heat the milk, the user does not need to click the heating button on the central control screen at this time, thereby being able to prepare cold drinks for the user to enjoy. It should be noted that the heating disc 240 in the embodiment belongs to a conventional component in the art, and therefore the heating principle of the heating disc 240 for heating the milk in the milk frother body 100 and the specific structure of the heating disc 240 will not be described in detail.

[0069] As shown in FIGS. 7-11, in the embodiment, the paddle assembly 400 includes a magnet box 450, which is sleeved on the thimble assembly 300, and the second magnet 440 is arranged in the magnet box 450. The arrangement of the magnet box 450 can play a certain protective role for the second magnet 440, avoiding the contact of the milk with the second magnet 440 to affect the magnetic performance of the second magnet 440. At the same time, it can also avoid the phenomenon of the second magnet 440 polluting the milk, improving the safety.

[0070] Further, the magnet box 450 in the embodiment is formed by buckling a magnet cover 4501 and a magnet base 4502, and the magnet box 450 comprises at least one of the following settings: the magnet base 4502 is provided with a mounting position 4503 for mounting the second magnet 440, or the magnet cover 4501 is provided with a mounting position 4503 for mounting the second magnet 440. The mounting position 4503 can limit and fix the second magnet 440 to a certain extent, so as to avoid the second magnet 440 from shaking or moving in the magnet box 450, and ensure that the magnetic attraction force of the first magnet 230 and the second magnet 440 is large enough.

[0071] Optionally, the magnet box 450 in the embodiment is made of food-grade stainless steel material, for example, 304 stainless steel or 316 stainless steel.

[0072] As shown in FIGS. 7-11, the paddle assembly 400 in the embodiment further comprises a second connecting column 410, a third connecting column 430, and a paddle 460, the paddle 460 is arranged on the outer circumferential side of the third connecting column 430, and the third connecting column 430 is welded to the magnet box 450, for example, the third connecting column 430 and the magnet box 450 can be welded by ultrasonic welding, heat conduction welding or laser welding. The second connecting column 410 is located above the third connecting column 430, and a filter screen 470 is arranged between the second connecting column 410 and the third connecting column 430, and the filter screen 470 is sleeved on the third connecting column 430. The filter screen 470 is configured to filter and cut the milk foam, so that the coarse milk foam is cut by the filter screen 470 to become more delicate, thereby improving the quality of the milk foam. In addition, the filter screen 470 can also cut the air, so that the air can be fully mixed with the milk, improve the uniformity of the air and milk mixture, and thus improve the uniformity of the milk foam, so as to obtain milk foam with higher quality and improve the user experience.

[0073] Optionally, the mesh number of the filter screen 470 in the embodiment can be set to 40-100 meshes, and the thickness of the filter screen 470 can be set to 0.08-1.2 mm.

[0074] Further, as shown in FIG. 10, the filter screen 470 is provided with a through hole 4701, the filter screen 470 is circular, the through hole 4701 is sleeved on the third connecting column 430, and the diameter of the through hole 4701 is less than half of the outer diameter of the filter screen 470. In this way, the area of the filter screen 470 can be increased as much as possible, the effect of cutting the milk foam and air by the filter screen 470 is improved, and thus the milk foam produced is more dense and delicate.

[0075] Optionally, the paddles 460 in the embodiment are provided in plurality, and the plurality of paddles 460 are uniformly arranged about the axis of the third connecting column 430. Exemplarily, the paddles 460 can be provided in three, four, five or the like number, so as to improve the effect of stirring the milk and make the output milk foam more uniform.

[0076] Further, the thickness of each paddle 460 is provided between 1.0 mm and 2.5 mm, the inclination angle of the paddle 460 is provided between 12° and 30°, the height of the paddle 460 is provided between 2.5 mm and 3.5 mm, and the curvature of the paddle 460 is provided between 0° and 5°. Of course, the operator can also set the paddle 460 to other numbers and sizes according to actual needs, which will not be described in more detail here.

[0077] As shown in FIG. 12, the paddle 460 in the embodiment maintains a preset distance d from the magnet box 450, thereby avoiding the interference between the paddle 460 and the magnet box 450 during rotation and improving safety. Exemplarily, the preset distance d in the embodiment can be provided between 4 mm and 6 mm.

[0078] As shown in FIG. 10, the paddle assembly 400 in the embodiment further includes a gasket 480, which is provided above the filter screen 470 and jointly compresses the edge of the filter screen 470 with the paddle 460, thereby improving the stability and reliability of the filter screen 470 and avoiding the phenomenon of falling off of the filter screen 470.

[0079] As shown in FIG. 12, the spoiler assembly 500 in the embodiment is located above the paddle assembly 400, the spoiler blade 510 and the first connecting column 520 in the spoiler assembly 500, the spoiler blade 510 is provided on the outer circumferential side of the first connecting column 520, the first adsorption block 550 inside the first connecting column 520 is magnetically connected with the second adsorption block 330 in the thimble assembly 300, and the spoiler blade 510 and the gasket 480 maintain a preset distance e. Exemplarily, the preset distance e can be provided between 1 mm and 2.5 mm. In this way, the gasket 480 and the spoiler blade 510 do not interfere with each other during the rotation of the paddle assembly 400, thereby ensuring the smoothness of the rotation of the paddle assembly 400, and at the same time, the spoiler assembly 500 can also be ensured not to rotate, so as to realize the spoiler effect on the milk.

[0080] As shown in FIGS. 5-6, the milk frother in the embodiment further comprises a cover 600 and a handle 700. The cover 600 is capable of covering the opening 110 on the milk frother body 100 to prevent foreign matters such as dust from the outside from falling into the milk frother body 100, thereby improving safety. The handle 700 is integrally formed with or clamped to the milk frother body 100. The provision of the handle 700 can improve the convenience of users using the milk frother and improve user experience. The number of the handle 700 is not limited in the embodiment.

Claims

1. A stirring and turbulence device arranged to stir and disturb the milk in a milk frother body (100), the stirring and turbulence device comprising: a thimble assembly (300) arranged in the milk frother body (100) and fixedly connected to the bottom wall of the milk frother body (100); a paddle assembly (400) sleeved on the thimble assembly (300) and capable of rotating around the thimble assembly (300); a turbulence assembly (500) magnetically connected to the thimble assembly (300) and located above the paddle assembly (400), the magnetic attraction force between the turbulence assembly (500) and the thimble assembly (300) being greater than the sum of the gravity of the turbulence assembly (500) and the gravity of the paddle assembly (400), and the magnetic attraction force between the turbulence assembly (500) and the thimble assembly (300) being greater than the centrifugal force of the rotation of the paddle assembly (400), so that the turbulence assembly (500) can remain in a stationary state when the paddle assembly (400) stirs the milk.

2. The agitator turbulator device of claim 1, wherein, The thimble assembly (300) comprises a thimble fixing member (310) fixedly connected to the bottom wall of the milk frother body (100) and a thimble sleeve (320) sleeved on the thimble fixing member (310) and in interference fit with the thimble fixing member (310), and the outer periphery of the thimble sleeve (320) is polygonal; The turbulence assembly (500) comprises turbulence blades (510) arranged on the outer periphery of a first connecting column (520) and the first connecting column (520) having a first counterbore (530) formed therein, the inner wall of the first counterbore (530) being polygonal, and the first counterbore (530) being sleeved on the outer periphery of the thimble sleeve (320); The first connecting column (520) further has a second counterbore (540) formed therein, the second counterbore (540) having a first adsorption block (550) arranged therein, and the thimble sleeve (320) has a second adsorption block (330) arranged therein, the first adsorption block (550) and the second adsorption block (330) being magnetically connected.

3. The agitator turbulator device of claim 1, wherein, The turbulence blades (510) are arranged in a plurality, and the plurality of turbulence blades (510) are uniformly arranged about the axis of the first connecting column (520).

4. The stirring and turbulence device according to claim 1, the turbulence assembly (500) further comprising a lifting member (560) connected to the end of the first connecting column (520) away from the paddle assembly (400).

5. The agitator turbulator device of claim 1, wherein, The outer wall of the first connecting column (520) is provided with a first clamping rib (570), the paddle assembly (400) comprises a second connecting column (410) and a second clamping rib (420), the second connecting column (410) is sleeved on the thimble assembly (300), the second clamping rib (420) is arranged on the inner wall of the second connecting column (410), and the projection area of the first clamping rib (570) is greater than the projection area of the second clamping rib (420) along the height direction of the thimble assembly (300), the first clamping rib (570) penetrates through the second clamping rib (420) and is located below the second clamping rib (420).

6. The agitator turbulator device of claim 5, wherein, The first clamping rib (570) is arranged in multiple, and the multiple first clamping ribs (570) are uniformly arranged about the axis of the first connecting column (520), the second clamping rib (420) is annular, the second clamping rib (420) is coaxially arranged with the second connecting column (410), and the first connecting column (520) and the second connecting column (410) are coaxially arranged.

7. The agitator turbulator device of claim 5, wherein, The first clamping rib (570) and the inner wall of the second connecting column (410) maintain a preset distance a, and the first clamping rib (570) and the second clamping rib (420) maintain a preset distance b; the paddle assembly (400) comprises a third connecting column (430), the third connecting column (430) is sleeved on the thimble assembly (300), and the third connecting column (430) is connected with the second connecting column (410) and located below the second connecting column (410), and the first connecting column (520) and the third connecting column (430) maintain a preset distance c.

8. A stirring and turbulence device arranged to stir and disturb the milk in a milk frother body (100), the stirring and turbulence device comprising: a thimble assembly (300) arranged in the milk frother body (100) and fixedly connected with the bottom wall of the milk frother body (100); a turbulence assembly (500) comprising a turbulence blade (510) and a first connecting column (520), the turbulence blade (510) being arranged on the outer circumferential side of the first connecting column (520), the first connecting column (520) being provided with a first counterbore (530) with a polygonal inner wall, the first counterbore (530) being sleeved on the outer circumferential side of the thimble assembly (300) to prevent the turbulence assembly (500) from rotating relative to the thimble assembly (300).

9. The agitator turbulator device of claim 8, wherein, The thimble assembly (300) comprises a thimble fixing member (310) and a thimble sleeve (320), the thimble fixing member (310) is fixedly connected with the bottom wall of the milk frother body (100), the thimble sleeve (320) is sleeved on the thimble fixing member (310) and is in interference fit with the thimble fixing member (310), and the turbulence assembly (500) is connected with the thimble sleeve (320).

10. The agitator turbulator device of claim 9, wherein, The outer periphery of the ejector sleeve (320) is polygonal, and the first counterbore (530) is sleeved on the outer periphery of the ejector sleeve (320).

11. The agitator turbulator device of claim 9, wherein, The first connecting column (520) is further provided with a second counterbore (540), and a first adsorption block (550) is arranged in the second counterbore (540); the ejector sleeve (320) is provided with a second adsorption block (330), and the first adsorption block (550) and the second adsorption block (330) are magnetically connected.

12. The agitator turbulator device of claim 8, wherein, The plurality of turbulence vanes (510) are uniformly arranged about the axis of the first connecting column (520).

13. The stirring and turbulence device according to claim 8, wherein the turbulence assembly (500) further comprises a lifting piece (560) connected to one end of the first connecting column (520).

14. The stirring and turbulence device according to claim 8, wherein the stirring and turbulence device further comprises a paddle assembly (400) sleeved on the ejector assembly (300) and capable of rotating about the ejector assembly (300). The outer wall of the first connecting column (520) is provided with a first clamping rib (570), the paddle assembly (400) comprises a second connecting column (410) and a second clamping rib (420), the second connecting column (410) is sleeved on the ejector assembly (300), the second clamping rib (420) is arranged on the inner wall of the second connecting column (410), and the projection area of the first clamping rib (570) is greater than the projection area of the second clamping rib (420) along the height direction of the ejector assembly (300), the first clamping rib (570) penetrates through the second clamping rib (420) and is located below the second clamping rib (420).

15. The agitator turbulator device of claim 14, wherein, The plurality of first clamping ribs (570) are uniformly arranged about the axis of the first connecting column (520), the second clamping rib (420) is annular, the second clamping rib (420) is coaxially arranged with the second connecting column (410), and the first connecting column (520) and the second connecting column (410) are coaxially arranged.

16. The agitator turbulator device of claim 14, wherein, The first clamping rib (570) and the inner wall of the second connecting column (410) maintain a preset distance a, and the first clamping rib (570) and the second clamping rib (420) maintain a preset distance b; the paddle assembly (400) comprises a third connecting column (430), the third connecting column (430) is sleeved on the ejector assembly (300), the third connecting column (430) is connected with the second connecting column (410) and located below the second connecting column (410), and the first connecting column (520) and the third connecting column (430) maintain a preset distance c.

17. A paddle assembly, comprising: a magnet box (450), a second connecting column (410), a third connecting column (430), a paddle (460), and a filter screen (470); The paddle (460) is arranged on the outer periphery of the third connecting column (430) connected with the magnet box (450), and the second connecting column (410) is located above the third connecting column (430); The filter screen (470) is arranged between the second connecting column (410) and the third connecting column (430), and the filter screen (470) is sleeved on the third connecting column (430), and the filter screen (470) is configured to filter and cut the milk foam.

18. The paddle assembly of claim 17, wherein, The magnet box (450) is provided with a second magnet (440) inside; The magnet box (450) is formed by buckling a magnet cover (4501) and a magnet base (4502), and the magnet box (450) comprises at least one of the following arrangements: the magnet base (4502) is provided with a mounting position (4503) for mounting the second magnet (440), or the magnet cover (4501) is provided with a mounting position (4503) for mounting the second magnet (440).

19. The paddle assembly of claim 17, wherein, The filter screen (470) is provided with a through hole (4701), the filter screen (470) is circular, the through hole (4701) is sleeved on the third connecting column (430), and the diameter of the through hole (4701) is less than one half of the outer diameter of the filter screen (470).

20. The paddle assembly of claim 17, wherein, The paddle (460) and the magnet box (450) maintain a predetermined distance d.

21. The paddle assembly of claim 20, wherein, The paddle (460) is arranged in multiple, and the multiple paddles (460) are uniformly arranged about the axis of the third connecting column (430).

22. The paddle assembly according to claim 17, further comprising a gasket (480) arranged above the filter screen (470), and the gasket (480) and the paddle (460) jointly compress the edge of the filter screen (470).

23. A milk foam machine, comprising a milk foam machine body (100) and the stirring and turbulence device according to any one of claims 1-16, the stirring and turbulence device is arranged at the bottom of the milk foam machine body (100) and is configured to stir and disturb the milk in the milk foam machine body (100).

24. The milk frothing machine of claim 23, wherein, Further comprising a base (200) and a thimble assembly (300); the milk foam machine body (100) is detachably connected with the base (200), and the thimble assembly (300) is fixedly connected with the bottom wall of the milk foam machine body (100).

25. The milk frothing machine of claim 24, wherein, Further comprising the paddle assembly (400) according to any one of claims 17-22, the paddle assembly (400) is sleeved on the thimble assembly (300), and the paddle assembly (400) maintains a predetermined distance m from the bottom wall of the milk foam machine body (100).

26. The milk frothing machine of claim 25, wherein, The base (200) is internally provided with a driving assembly (210), an output shaft of the driving assembly (210) is connected with a driving turntable (220), the driving turntable (220) is provided with a first magnet (230); the paddle assembly (400) is internally provided with a second magnet (440), the second magnet (440) is arranged in magnetic attraction connection with the first magnet (230).

27. The milk frothing machine of claim 26, wherein, The spoiler assembly (500) comprises a spoiler blade (510) and a first connecting column (520), the spoiler blade (510) is arranged on the outer circumferential side of the first connecting column (520), the first connecting column (520) is in magnetic attraction connection with the thimble assembly (300), and a preset distance e is kept between the spoiler blade (510) and the gasket (480).

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