A whisk head replacement connection assembly and a milk frother having the same
Patent Information
- Application Number
- CN202521614771.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-07-31
AI Technical Summary
但在实际更换搅拌杆的操作过程中，存在明显缺陷：由于插接槽隐匿于壳体内部，使用者无法直接观察其位置，只能通过旋转搅拌杆来摸索插接槽所在，然而，搅拌杆与马达连接件相连，在旋转搅拌杆时，马达连接件会同步转动，这使得搅拌杆难以精准定位到插接槽，极大地增加了对位难度，进而导致更换搅拌头的操作变得十分困难
[0016]本实用新型的搅拌头更换连接组件及具有该连接组件的奶泡器针对传统奶泡器搅拌头更换时插接结构对位困难的问题，通过在插接头上设置具备自动引导对齐功能的导向槽，使用者无需对位，导向槽会直接引导插接结构对齐，使用方便快捷，可实现搅拌头更换的“盲插”操作，即无论使用者从何种角度、位置插接搅拌杆，导向槽均能精准导向，使插接件自动到达并准确对齐卡接位置。使用者仅需施加插入搅拌杆的力即可，无需进行繁琐对位，极大简化了操作流程，提升了使用便捷性与效率。本实用新型整体结构设计紧凑，使用方便，适于推广应用。
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Figure CN224792196U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of milk frother technology, and in particular to a stirring head replacement connection assembly and a milk frother having the connection assembly. Background Technology
[0002] Currently, all existing milk frothers with replaceable stirring heads use a plug-in structure and rely on clips for fixation. However, there is a significant drawback in the actual operation of replacing the stirring rod: because the plug slot is hidden inside the housing, the user cannot directly observe its position and can only locate it by rotating the stirring rod. However, the stirring rod is connected to the motor connector, and the motor connector rotates synchronously when the stirring rod is rotated. This makes it difficult to accurately position the stirring rod to the plug slot, greatly increasing the difficulty of alignment and making the operation of replacing the stirring head extremely difficult. Utility Model Content
[0003] The purpose of this invention is to provide a stirring head replacement connection component and a milk frother with the connection component, thereby solving the aforementioned problems in the prior art.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] This utility model discloses a stirring head replacement connection assembly, comprising a motor, a connector, a connector base, and a stirring rod. The output end of the motor is fixedly connected to a motor shaft, and the end of the motor shaft away from the motor is fixedly connected to the connector. The motor shaft can drive the connector to rotate synchronously. The top end of the stirring rod is fixedly connected to the connector base, and the bottom end is connected to a stirring head. The connector is detachably inserted into the connector base. The outer wall of the top end of the connector has at least one radially protruding insertion protrusion, and the outer wall of the bottom end has at least one axially formed guide groove. The connector base includes a cylindrical body. The top end of the body has an insertion groove adapted to the insertion protrusion, and the inner wall of the body has a guide block adapted to the guide groove. The insertion protrusion engages with the insertion groove, and the guide block engages with the guide groove, with the guide groove guiding the guide block to align and engage.
[0006] Furthermore, the guide groove is a groove that is open at the bottom, closed at the top, and extends upward along the axial direction. The width of the guide groove gradually narrows from the bottom opening end to the top end, and the cross-sectional profile of the guide groove is funnel-shaped.
[0007] Furthermore, the insertion groove is a through groove with an open top and a closed bottom, extending downward along the axial direction, and the top opening of the insertion groove is flared. The insertion groove can guide the insertion protrusion to align and engage.
[0008] Furthermore, the bottom of the insertion protrusion is connected to an insertion block, the cross-section of which is arc-shaped, and the middle of the insertion groove is provided with an arc-shaped positioning groove. The curvature of the positioning groove matches the curvature of the cross-section of the insertion block. When the insertion protrusion and the insertion groove are connected, the insertion block is positioned in the positioning groove.
[0009] Furthermore, the top end of the connector is uniformly and symmetrically provided with two insertion protrusions along the circumference, the bottom end is uniformly and symmetrically provided with two guide grooves along the circumference, the top end of the base is correspondingly and symmetrically provided with two insertion grooves along the circumference, and the inner wall is correspondingly and symmetrically provided with two guide blocks along the circumference.
[0010] Furthermore, the two insertion protrusions and the two guide grooves are staggered in the circumferential direction, and the two insertion grooves and the two guide blocks are staggered in the circumferential direction.
[0011] Furthermore, the motor shaft is fixedly connected to the connector via a flexible connector.
[0012] This utility model also provides a milk frother, including the aforementioned stirring head replacement connection assembly.
[0013] Furthermore, it also includes an outer cover, which comprises a first housing, a second housing, an upper cover plate, and a lower end cover. The first housing and the second housing are detachably connected. The upper cover plate and the lower end cover are detachably connected to the top and bottom of the first housing and the second housing after they are connected. The battery and the motor are arranged sequentially from top to bottom in the cavity formed after the first housing and the second housing are connected. A partition plate is provided at the bottom of the cavity. A through hole for the motor shaft to pass through is opened in the middle of the partition plate. A waterproof sealing gasket is provided between the motor shaft and the through hole. A mounting hole is opened at the bottom of the lower end cover. The base is inserted into the mounting hole. A waterproof boss is fixedly connected to the lower end of the base. The top surface of the waterproof boss abuts against the outer edge of the mounting hole.
[0014] Furthermore, a control panel is installed on the outer wall of the first housing, and the control panel is provided with several control buttons. A mounting plate is correspondingly provided in the receiving cavity, and a number of control switches are provided on the mounting plate. The control buttons and control switches correspond one-to-one and are linked to each other, and are used to control the start and stop or speed adjustment of the motor.
[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0016] This invention relates to a replacement stirring head assembly and a milk frother incorporating the same assembly. Addressing the difficulty of aligning the insertion structure during stirring head replacement in traditional milk frothers, this invention utilizes a guide groove with automatic alignment functionality on the insertion joint. Users do not need to align the joint itself; the guide groove directly guides the insertion structure to the correct position, making it convenient and quick to use. This allows for "blind insertion" of the stirring head, meaning that regardless of the angle or position from which the stirring rod is inserted, the guide groove accurately guides the insertion, ensuring the connector automatically reaches and precisely aligns with the locking position. Users only need to apply force to insert the stirring rod, eliminating the need for tedious alignment and greatly simplifying the operation process, thus improving ease of use and efficiency. The overall design of this invention is compact, easy to use, and suitable for widespread application. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a front view schematic diagram of the stirring head replacement connection assembly in Embodiment 1 of this utility model;
[0019] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;
[0020] Figure 3 This is a cross-sectional structural diagram of the stirring head replacement connection assembly in Embodiment 1 of this utility model.
[0021] Figure 4 This is a three-dimensional structural diagram of the stirring head replacement connection assembly in Embodiment 1 of this utility model.
[0022] Figure 5 An exploded view of the replacement connection assembly of the stirring head in Embodiment 1 of this utility model;
[0023] Figure 6 This is a front view of the connector in the stirring head replacement connection assembly of Embodiment 1 of this utility model;
[0024] Figure 7 This is a three-dimensional structural diagram of the connector in the stirring head replacement connection assembly of Embodiment 1 of this utility model;
[0025] Figure 8 This is a schematic diagram of the main structure of the plug-in socket in the stirring head replacement connection assembly of Embodiment 1 of this utility model;
[0026] Figure 9This is a three-dimensional structural diagram of the plug-in socket in the stirring head replacement connection assembly of Embodiment 1 of this utility model;
[0027] Figure 10 This is a three-dimensional structural diagram of the plug-in socket in the stirring head replacement connection assembly of Embodiment 1 of this utility model;
[0028] Figure 11 This is a schematic diagram of the main structure of the milk frother according to Embodiment 2 of this utility model;
[0029] Figure 12 This is a three-dimensional structural diagram of the milk frother according to Embodiment 2 of this utility model;
[0030] Figure 13 This is a schematic cross-sectional view of the milk frother in Embodiment 2 of this utility model;
[0031] Figure 14 for Figure 13 A magnified view of a section at point B in the middle;
[0032] Figure 15 This is an exploded view of the milk frother of Embodiment 2 of this utility model.
[0033] Explanation of reference numerals in the attached drawings: 1. Motor; 11. Motor shaft; 12. Waterproof sealing gasket; 2. Flexible connector; 3. Plug-in connector; 31. Plug-in protrusion; 32. Plug-in block; 33. First mating cavity; 34. Guide groove; 4. Plug-in seat; 41. Seat body; 42. Waterproof boss; 43. Second mating cavity; 44. Plug-in groove; 45. Positioning groove; 46. Guide block; 5. Stirring rod; 51. Stirring head; 6. Outer cover; 61. First housing; 62. Second housing; 63. Lower end cover; 64. Upper cover plate; 65. Control panel; 66. Mounting plate; 7. Battery. Detailed Implementation
[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0035] In the description of this utility model, it should be understood that the terms "length," "width," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0037] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0038] Example 1
[0039] like Figures 1 to 10 As shown, the stirring head replacement connection assembly of Embodiment 1 of this utility model includes a motor 1, a plug connector 3, a plug seat 4, and a stirring rod 5. The output end of the motor 1 is fixedly connected to a motor shaft 11, and the end of the motor shaft 11 away from the motor 1 is fixedly connected to the plug connector 3. The motor shaft 11 can drive the plug connector 3 to rotate synchronously. The top end of the stirring rod 5 is fixedly connected to the plug seat 4, and the bottom end is connected to a stirring head 51. The plug connector 3 can be detachably inserted into the plug seat 4. Specifically, the outer wall of the top end of the plug connector 3 has at least one insertion protrusion 31 protruding radially, and the outer wall of the bottom end has at least one guide groove 34 opening axially.
[0040] Correspondingly, the socket 4 includes a cylindrical base 41, such as... Figure 3 , Figure 9 , Figure 10As shown, the seat body 41 has a second mating cavity 43 for accommodating the plug 3. The top of the seat body 41 has a plug groove 44 that matches the plug protrusion 31. The plug protrusion 31 and the plug groove 44 are shaped to match each other. When the plug 3 is inserted into the plug seat 4, the plug protrusion 31 enters the plug groove 44 to achieve axial and circumferential positioning, preventing the plug 3 from separating from the plug seat 4 or rotating relative to it during rotation. The inner wall of the seat body 41 has a guide block 46 that matches the guide groove 34. At this time, the plug protrusion 31 and the plug groove 44 engage, and the guide block 46 engages with the guide groove 34. The guide groove 34 can guide the guide block 46 to align and engage.
[0041] At this time, after the motor 1 starts, its output end drives the motor shaft 11 to rotate. Since the motor shaft 11 is fixedly connected to the plug 3 through the flexible connector 2, the motor shaft 11 transmits power to the plug 3, driving the plug 3 to rotate synchronously. At the same time, the top of the stirring rod 5 is fixedly connected to the plug seat 4, and the plug 3 can be detachably inserted into the plug seat 4. Through the cooperation between the plug protrusion 31 and the plug groove 44, and the guide block 46 and the guide groove 34, the rotation of the plug 3 can drive the plug seat 4 to rotate, thereby driving the stirring rod 5 and the stirring head 51 at its bottom to rotate, thus realizing the stirring function.
[0042] Among them, such as Figure 6 , Figure 7 As shown, the guide groove 34 is a groove that is open at the bottom, closed at the top, and extends upward along the axial direction. The width of the guide groove 34 gradually narrows from the bottom opening to the top, and the cross-sectional profile of the guide groove 34 is funnel-shaped. When the plug 3 is inserted into the plug seat 4, the guide block 46 enters from the bottom opening of the guide groove 34. As the insertion depth increases, the guide groove 34 gradually narrows, which can guide and position the guide block 46, so that the plug 3 can be inserted into the plug seat 4 more accurately. At the same time, it restricts the movement of the plug 3 in the radial direction and ensures the stability of the insertion.
[0043] Furthermore, the insertion groove 44 is a through groove with an open top and a closed bottom, extending downward along the axial direction. The top opening of the insertion groove 44 is flared, and the insertion groove 44 can guide the insertion protrusion 31 to align and engage. Preferably, as shown... Figure 8As shown, the cross-sectional profile of the insertion groove 44 is similar to an inverted gourd shape. Specifically, an insertion block 32 is connected to the bottom of the insertion protrusion 31. The cross-section of the insertion block 32 is arc-shaped, and an arc-shaped positioning groove 45 is correspondingly provided in the middle of the insertion groove 44. The curvature of the positioning groove 45 matches the curvature of the cross-section of the insertion block 32. When the insertion protrusion 31 and the insertion groove 44 are connected, the insertion block 32 is positioned in the positioning groove 45. This further enhances the stability and positioning accuracy of the insertion, preventing the insertion joint 3 from shaking or shifting during the stirring process.
[0044] Optionally, the top of the connector 3 is symmetrically provided with two insertion protrusions 31 along the circumference, and the bottom is symmetrically provided with two guide grooves 34 along the circumference. The top of the base 41 is symmetrically provided with two insertion grooves 44 along the circumference, and the inner wall is symmetrically provided with two guide blocks 46 along the circumference. By adopting a symmetrical arrangement, the force on the connector 3 is uniform when it is inserted into the connector base 4, which reduces the jamming and resistance during the insertion process, improves the smoothness of the insertion, and results in a better connection effect.
[0045] Specifically, the two insertion protrusions 31 and the two guide grooves 34 are staggered in the circumferential direction, and the two insertion grooves 44 and the two guide blocks 46 are staggered in the circumferential direction. By adopting the staggered arrangement, the structural layout can be optimized while ensuring the insertion and guiding functions, making the entire connecting component more compact and improving space utilization. The symmetrically staggered arrangement of the insertion protrusions 31, guide grooves 34, insertion grooves 44, and guide blocks 46 makes the structure of the entire connecting component more compact, achieving reliable connection and transmission functions within a limited space, which is conducive to the miniaturization and lightweight design of milk frothers.
[0046] At the same time, the motor shaft 11 is fixedly connected to the connector 3 via the flexible connector 2. At this time, as... Figure 3 , Figure 7 As shown, the connector 3 has a first mating cavity 33 for connecting the flexible connector 2. Optionally, the flexible connector 2 is a spring or elastic plastic. Because the flexible connector 2 has a certain degree of elasticity, it can act as a buffer when the motor 1 starts and stops, reducing the impact force between the motor shaft 11 and the connector 3, protecting the motor 1 and the connecting components, and extending their service life. At the same time, the flexible connector 2 can also compensate for minor installation errors between the motor shaft 11 and the connector 3, ensuring smooth transmission.
[0047] The stirring head replacement connection assembly in this embodiment 1 utilizes a multi-component structure consisting of guide groove 34 and guide block 46, insertion protrusion 31 and insertion groove 44, and insertion block 32 and positioning groove 45. This allows the connector 3 to quickly and accurately find the correct position when inserted into the connector seat 4, and ensures a firm connection after insertion, preventing loosening. This effectively improves the connection stability and transmission efficiency between the stirring head 51 and the motor 1, reducing noise and vibration caused by unstable connection. Simultaneously, the funnel-shaped design and symmetrical staggered structural layout of the guide groove 34 reduce the difficulty of inserting the connector 3 into the connector seat 4. Users can easily complete the insertion operation without precise alignment, achieving a "blind insertion" function. This significantly improves the replacement efficiency of the milk frother stirring head 51 and enhances the user experience.
[0048] Example 2
[0049] like Figures 11 to 15 As shown, the milk frother of Embodiment 2 of this utility model includes the aforementioned stirring head replacement connection assembly.
[0050] Specifically, the milk frother of Embodiment 2 of this utility model also includes an outer cover 6, which includes a first shell 61, a second shell 62, an upper cover plate 64, and a lower end cover 63. The first shell 61 and the second shell 62 are detachably connected to each other, which facilitates the installation and maintenance of internal components. The upper cover plate 64 and the lower end cover 63 are detachably connected to the top and bottom of the first shell 61 and the second shell 62 after they are connected to form a receiving cavity. The receiving cavity formed after the first shell 61 and the second shell 62 are connected to each other is provided with a battery 7 and a motor 1 from top to bottom. A partition is provided at the bottom of the receiving cavity. A through hole is opened in the middle of the partition for the motor shaft 11 to pass through. At this time, the motor shaft 11 passes through the through hole and connects to the stirring head replacement connection assembly below to realize power transmission.
[0051] Furthermore, a waterproof sealing gasket 12 is provided between the motor shaft 11 and the through hole. When the motor shaft 11 rotates, the waterproof sealing gasket 12 can effectively prevent water from entering the chamber where the motor 1 and battery 7 are located through the through hole, protecting the internal electronic components such as the battery 7 and motor 1 from water corrosion, and ensuring the normal operation and service life of the milk frother. At the same time, an installation hole is provided at the bottom of the lower end cover 63, and the base 41 is inserted into the installation hole. A waterproof boss 42 is fixedly connected to the lower end of the base 41. The top surface of the waterproof boss 42 abuts against the outer edge of the installation hole. The waterproof boss 42 can form an additional waterproof barrier, further preventing water from entering the interior from the connection between the base 41 and the lower end cover 63, thus enhancing the waterproof performance of the milk frother.
[0052] In this embodiment 2, a control panel 65 is installed on the outer wall of the first housing 61. The control panel 65 is provided with several control buttons. A mounting plate 66 is correspondingly provided in the receiving cavity. The mounting plate 66 is provided with several control switches. The control buttons and control switches correspond one-to-one and are linked. When the user presses a button on the control panel 65, the corresponding control switch will be triggered, thereby controlling the start / stop or speed adjustment of the motor 1, so as to realize the control of the working status of the milk frother.
[0053] In this embodiment 2, the outer casing 6 of the milk frother adopts a detachable and mating first shell 61 and a second shell 62, as well as a detachable upper cover plate 64 and a lower end cover 63. The modular design makes the assembly and disassembly of the milk frother more convenient. When it is necessary to repair or replace internal components, it is only necessary to open the corresponding shell or cover plate, which greatly improves maintenance efficiency and reduces maintenance costs. At the same time, the waterproof sealing gasket 12 between the motor shaft 11 and the through hole and the matching of the waterproof boss 42 at the lower end of the seat 41 and the mounting hole of the lower end cover 63 form a double waterproof protection mechanism, which can effectively prevent moisture from entering the chamber where the electronic components are located, protecting the internal electronic components from damage. Even in a humid environment or when water is accidentally splashed, the milk frother can work normally, improving the reliability and service life of the product.
[0054] This invention relates to a replacement stirring head assembly and a milk frother incorporating the same assembly. Addressing the difficulty of aligning the insertion structure during stirring head replacement in traditional milk frothers, this invention utilizes a guide groove with automatic alignment functionality on the insertion joint. Users do not need to align the joint itself; the guide groove directly guides the insertion structure to the correct position, making it convenient and quick to use. This allows for "blind insertion" of the stirring head, meaning that regardless of the angle or position from which the stirring rod is inserted, the guide groove accurately guides the insertion, ensuring the connector automatically reaches and precisely aligns with the locking position. Users only need to apply force to insert the stirring rod, eliminating the need for tedious alignment and greatly simplifying the operation process, thus improving ease of use and efficiency. The overall design of this invention is compact, easy to use, and suitable for widespread application.
[0055] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A stirring head replacement connection assembly, characterized in that, The device includes a motor (1), a connector (3), a connector base (4), and a stirring rod (5). The output end of the motor (1) is fixedly connected to a motor shaft (11). The end of the motor shaft (11) away from the motor (1) is fixedly connected to the connector (3). The motor shaft (11) can drive the connector (3) to rotate synchronously. The top end of the stirring rod (5) is fixedly connected to the connector base (4), and the bottom end is connected to a stirring head (51). The connector (3) can be detachably inserted into the connector base (4). The outer wall of the top end of the connector (3) has at least one protruding insert along the radial direction. The connector (31) has at least one guide groove (34) axially formed on the outer wall of its bottom end. The connector (4) includes a cylindrical seat body (41). The top end of the seat body (41) is provided with a connector groove (44) that is adapted to the connector protrusion (31). The inner wall of the seat body (41) is provided with a guide block (46) that is adapted to the guide groove (34). The connector protrusion (31) and the connector groove (44) are engaged and snapped together. The guide block (46) and the guide groove (34) are engaged and inserted together. The guide groove (34) can guide the guide block (46) to be aligned and inserted.
2. The stirring head replacement connection assembly according to claim 1, characterized in that, The guide groove (34) is a groove that is open at the bottom, closed at the top, and extends upward along the axial direction. The width of the guide groove (34) gradually narrows from the bottom opening end to the top end, and the cross-sectional profile of the guide groove (34) is funnel-shaped.
3. The stirring head replacement connection assembly according to claim 1, characterized in that, The insertion groove (44) is a through groove with an open top and a closed bottom, extending downward along the axial direction. The top opening of the insertion groove (44) is flared. The insertion groove (44) can guide the insertion protrusion (31) to align and engage.
4. The stirring head replacement connection assembly according to claim 3, characterized in that, The bottom of the plug-in protrusion (31) is connected to a plug-in block (32). The cross-section of the plug-in block (32) is arc-shaped. The middle of the plug-in groove (44) is provided with an arc-shaped positioning groove (45). The curvature of the positioning groove (45) matches the curvature of the cross-section of the plug-in block (32). When the plug-in protrusion (31) and the plug-in groove (44) are connected, the plug-in block (32) is positioned in the positioning groove (45).
5. The stirring head replacement connection assembly according to claim 1, characterized in that, The top end of the connector (3) is uniformly and symmetrically provided with two connector protrusions (31) along the circumferential direction, and the bottom end is uniformly and symmetrically provided with two guide grooves (34) along the circumferential direction. The top end of the seat (41) is symmetrically provided with two connector grooves (44) along the circumferential direction, and the inner wall is symmetrically provided with two guide blocks (46) along the circumferential direction.
6. The stirring head replacement connection assembly according to claim 5, characterized in that, The two insertion protrusions (31) and the two guide grooves (34) are staggered in the circumferential direction, and the two insertion grooves (44) and the two guide blocks (46) are staggered in the circumferential direction.
7. The stirring head replacement connection assembly according to any one of claims 1-6, characterized in that, The motor shaft (11) is fixedly connected to the connector (3) via a flexible connector (2).
8. A milk frother, characterized in that, Includes the stirring head replacement connection assembly as described in any one of claims 1-7.
9. The milk frother according to claim 8, characterized in that, It also includes an outer cover (6), which includes a first housing (61), a second housing (62), an upper cover (64), and a lower end cover (63). The first housing (61) and the second housing (62) are detachably connected. The upper cover (64) and the lower end cover (63) are detachably connected to the top and bottom of the first housing (61) and the second housing (62) after they are connected. The cavity formed after the first housing (61) and the second housing (62) are connected has a top-to-bottom arrangement. A battery (7) and a motor (1) are arranged in sequence. A partition is provided at the bottom of the cavity. A through hole is provided in the middle of the partition for the motor shaft (11) to pass through. A waterproof sealing gasket (12) is provided between the motor shaft (11) and the through hole. An installation hole is provided at the bottom of the lower end cover (63). The seat (41) is inserted into the installation hole. A waterproof boss (42) is fixedly connected to the lower end of the seat (41). The top surface of the waterproof boss (42) abuts against the outer edge of the installation hole.
10. The milk frother according to claim 9, characterized in that, A control panel (65) is installed on the outer wall of the first housing (61). The control panel (65) is provided with several control buttons. A mounting plate (66) is provided in the cavity. The mounting plate (66) is provided with several control switches. The control buttons and the control switches are linked and used to control the start and stop or speed adjustment of the motor (1).