A high speed milk shaker

Abstract

The utility model relates to the field of electric conditioner, and specifically discloses a high -speed milk -shaking device, including milk -shaking frame and drive device of drive milk -shaking frame high -speed rotation, drive device includes the output shaft for output rotary power and is used for drive the drive shaft of milk -shaking frame high -speed rotation, wherein, the output shaft and drive shaft are arranged at interval in a reference plane, and are substantially parallel with each other, and, drive shaft and milk -shaking frame are driven through the flexible transmission cover of being suitable for generating elastic deformation transmission connection between, and the flexible transmission cover is fixed between drive shaft and milk -shaking frame. When the relative deflection of the rotation axis of drive shaft and milk -shaking frame two exists, the flexible transmission cover can establish flexible transmission between drive shaft and milk -shaking frame by the elastic deformation ability of itself, and effectively adapt the axis deflection situation.

Description

Technical Field

[0001] This utility model relates to the field of electric formulas, and more particularly to a high-speed milk shaker. Background Technology

[0002] In traditional breast milk shakers, the motor is usually mounted directly at the bottom of the shaking frame, with the motor's output shaft aligned with the frame's rotation axis. This layout was common in early product designs, but it has significant drawbacks. Because the motor is located at the bottom of the rotating component and axially aligned, the overall height of the electric shaker is forced to increase, resulting in a higher center of gravity. During operation, this high center of gravity makes the device more susceptible to wobbling from even minor external disturbances, significantly reducing its stability and causing inconvenience and discomfort for users. To address these issues, milk shakers with an offset motor design have gradually emerged in the industry. This design, by changing the motor's mounting position so that its output shaft is offset from the rotation center axis of the milk shaker, reduces the overall height of the device to some extent, optimizes the center of gravity distribution, and improves the stability of the device when statically placed. However, the offset motor requires a transmission mechanism to drive the rotation of the milk shaker, which raises new problems. While the parallel, spaced arrangement of the motor output shaft and the rotation axis of the shaking frame achieves a compact structure, under high-speed operation, factors such as installation errors in the transmission mechanism, component deformation after long-term use, and changes in belt tension can easily cause relative misalignment between the drive shaft and the rotation axis of the shaking frame. In existing technologies, the drive shaft and the shaking frame often use a rigid transmission connection (such as direct sleeve or key connection). When their axes misalign, a significant radial additional force is generated. This additional force is amplified dramatically during high-speed rotation, causing not only severe mechanical vibration and noise but also serious wear on transmission components, significantly shortening the equipment's lifespan. More seriously, the vibration can be transmitted to the bottles inside the shaking frame, leading to liquid splashing, uneven mixing of milk powder, and even overall equipment displacement due to resonance, posing safety hazards. Furthermore, the dynamic balance error of the shaking frame during high-speed rotation exacerbates the axial misalignment. Traditional rigid transmissions cannot accommodate such minute misalignments, often requiring extremely high machining and assembly precision to ensure axial alignment. This undoubtedly increases manufacturing costs and makes it difficult to maintain stability over long-term use. Therefore, how to solve the problem of axial misalignment between the drive shaft and the shaking frame during high-speed operation within a compact structure with motor offset, and achieve stable, low-noise, and durable power transmission, has become a key technical challenge that urgently needs to be addressed in this field. Utility Model Content The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-speed milk shaker to solve the problems of large vibration, high noise, severe component wear, short service life, and high-precision machining and assembly required to ensure axis alignment in the transmission process of the prior art high-speed milk shaker.

[0003] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A high-speed milk shaker includes a milk shaker frame and a drive device for driving the milk shaker frame to rotate at high speed; the drive device includes: An output shaft for outputting rotational power; and A drive shaft for driving the milk shaking frame to rotate at high speed; The output shaft and the drive shaft are arranged at intervals within a reference plane and are substantially parallel to each other; and, The drive shaft and the milk shaking frame are connected by a flexible transmission sleeve adapted to produce elastic deformation. The flexible transmission sleeve is fixed between the drive shaft and the milk shaking frame so as to establish flexible transmission between the drive shaft and the milk shaking frame when there is a relative misalignment between the rotation axes of the drive shaft and the milk shaking frame.

[0004] Furthermore, the angle between the projections of the drive shaft and the rotation axis of the milk shaking frame onto the reference plane does not exceed 5°.

[0005] Furthermore, the milk shaking frame has a downwardly extending rotating connecting post, which is sleeved with the drive shaft, and the outer side of the flexible transmission sleeve is fixedly connected to the rotating connecting post.

[0006] Furthermore, the sleeve end of the rotating connecting column and the sleeve end of the drive shaft are provided with mutually cooperating tangential surfaces in the circumferential direction, and the transmission sleeve is realized through the tangential surfaces.

[0007] Furthermore, the inner and outer sides of the flexible transmission sleeve are respectively provided with cross-sections that are in transmission cooperation with the rotating connecting post and the drive shaft, and the flexible transmission sleeve is interference-fitted between the drive shaft and the rotating connecting post.

[0008] Furthermore, it also includes a housing, the top of which defines a receiving cavity, in which the milk shaker is rotatably mounted.

[0009] Furthermore, the bottom of the milk shaking frame is provided with a positioning post along its rotation axis downward, and the housing is provided with a limiting sleeve that rotates with the positioning post, and the positioning post and the limiting sleeve are sleeved together.

[0010] Furthermore, the bottom end of the limiting sleeve is provided with a flange extending in the circumferential direction, and the limiting sleeve is fixed to the housing by the flange.

[0011] Furthermore, a mounting plate is disposed at the bottom of the receiving cavity, the mounting plate having a through-cavity, the bottom of the milk shaker is rotatably fitted to the top of the inner wall of the cavity, and the drive shaft is rotatably fitted to the bottom of the inner wall of the cavity.

[0012] Furthermore, the drive device includes a motor and a transmission mechanism, the output shaft is connected to the output end of the motor, and the transmission mechanism includes a first pulley connected to the output shaft, a second pulley connected to the drive shaft, and a belt connecting the first pulley and the second pulley.

[0013] Due to the adoption of the above technical solutions, this utility model has the following beneficial effects: 1. This utility model discloses a high-speed milk shaker in which the drive shaft and the shaking frame are connected by a flexible transmission sleeve adapted to produce elastic deformation. When there is a relative misalignment between the rotation axes of the drive shaft and the shaking frame, the flexible transmission sleeve can adapt to this misalignment through its own elastic deformation, establishing a flexible transmission between the drive shaft and the shaking frame. This flexible transmission method can effectively buffer and absorb the radial additional force caused by the misalignment of the axes, greatly reducing the generation of mechanical vibration. Without severe vibration, the noise is also significantly reduced. For users, they will no longer be disturbed by annoying noise during use, nor will they worry about the stability of the equipment due to severe vibration, thus creating a quiet and comfortable user environment and greatly improving the user experience.

[0014] 2. This high-speed milk shaker utilizes a flexible transmission sleeve for transmission connection. The elastic deformation capability of the flexible transmission sleeve allows it to adapt to relative axial misalignment, avoiding severe wear caused by additional forces in rigid connections. The flexible transmission sleeve can disperse and alleviate stress concentration to a certain extent, reducing damage to the drive shaft, milk shaking frame, and transmission components. This effectively extends the service life of each component and reduces equipment failures caused by component damage. Users do not need to frequently repair or replace parts, reducing maintenance costs and improving the reliability and stability of the equipment, enabling long-term stable operation.

[0015] 3. The high-speed milk shaker of this invention utilizes a flexible transmission sleeve, which can accommodate slight misalignments between the drive shaft and the rotating axis of the milk shaker frame. This means that the precision requirements for components can be appropriately reduced during processing and assembly. It eliminates the need for excessively high-precision processing equipment and complex manufacturing processes, thus reducing processing difficulty and costs. Furthermore, assembly does not require overly precise operations to ensure perfect axis alignment, simplifying the assembly process and improving efficiency. For manufacturers, this not only saves production costs but also increases production efficiency and enhances their market competitiveness. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0017] Figure 1 This is a schematic diagram of the structure of the milk maker in an embodiment of this utility model; Figure 2 This is a cross-sectional view of the milk maker in an embodiment of the present invention; Figure 3 This is a schematic diagram showing the connection between the milk shaking frame and the transmission mechanism in an embodiment of this utility model; Figure 4 This is a schematic diagram of the drive device and the milk shaking frame in an embodiment of the present invention; Figure 5 This is a cross-sectional view of the driving device and the milk shaking frame in an embodiment of this utility model; Figure 6 This is a schematic diagram of the positioning column in an embodiment of the present invention.

[0018] Figure label: 100. Formula maker; 110. Housing; 111. Receiving cavity; 112. Limiting sleeve; 113. Raised step; 114. Flanged edge; 115. Long screw; 116. Concave cavity; 1161. First bearing; 1162. Second bearing; 117. Mounting plate; 120. Shaking frame; 121. Rotating connecting column; 122. Positioning column; 1221. Hook; 130. Drive unit; 131. Motor; 132. Output shaft; 133. Drive shaft; 134. Transmission mechanism; 1341. First pulley; 1342. Second pulley; 1343. Belt; 135. Flexible transmission sleeve; 200. Baby bottle. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or its equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. They 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.

[0022] 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0024] Example: Combination Figures 1 to 6 The milk shaker in this embodiment includes a milk shaker frame 120 and a drive device 130. The drive device 130 includes an output shaft 132 for outputting rotational power and a drive shaft 133 for driving the milk shaker frame 120 to rotate at high speed.

[0025] In this embodiment, the output shaft 132 and the drive shaft 133 are arranged at intervals in a reference plane and are substantially parallel to each other. Furthermore, the drive shaft 133 and the shaking frame 120 are connected by a flexible transmission sleeve 135 adapted to produce elastic deformation. The flexible transmission sleeve 135 is fixed between the drive shaft 133 and the shaking frame 120 so as to establish flexible transmission between the drive shaft 133 and the shaking frame 120 when there is a relative misalignment between the rotation axes of the drive shaft 133 and the shaking frame 120.

[0026] During installation, the rotation axes of the drive shaft 133 and the shaking frame 120 may become relatively misaligned due to installation errors. In high-speed operation, factors such as component deformation after long-term use and changes in tension during transmission can further cause this relative misalignment. By installing a flexible transmission sleeve 135 between the drive shaft 133 and the shaking frame 120, which is adapted to produce elastic deformation, this sleeve can adapt to the misalignment through its own elastic deformation, establishing a flexible transmission between the drive shaft and the shaking frame. This flexible transmission method effectively buffers and absorbs the radial additional force caused by the axial misalignment, greatly reducing mechanical vibration. Without severe vibration, noise is also significantly reduced.

[0027] It is understood that in some embodiments, the inner side of the flexible transmission sleeve 135 is fixedly sleeved on the drive shaft 133, and its outer side is fixedly connected to the milk shaking frame 120. In other embodiments, a central shaft extends from the bottom of the milk shaking frame 120, and the inner side of the flexible transmission sleeve 135 is fixedly sleeved on the central shaft, while its outer side is fixedly connected to the drive shaft 133.

[0028] To reasonably control the degree of misalignment between the rotation axes of the drive shaft 133 and the shaking frame 120, and to ensure transmission efficiency and equipment stability, the included angle between the projections of the rotation axes of the drive shaft 133 and the shaking frame 120 onto the reference plane shall not exceed 5°. It is understood that this angle can be 5° or 0°. At 0°, it indicates that there is no installation error between the drive shaft 133 and the shaking frame 120. It can also be other angles between 0° and 5°, such as 1°, 2°, 3°, 4°, etc.

[0029] To facilitate the connection between the flexible transmission sleeve and the milk shaking frame, in some embodiments, the milk shaking frame 120 has a downwardly extending rotating connecting post 121, which is sleeved with the drive shaft 133, and the outer side of the flexible transmission sleeve 135 is fixedly connected to the rotating connecting post 121.

[0030] To ensure reliable transmission between the rotating connecting column 121 and the drive shaft 133, and to facilitate installation and positioning, the sleeve end of the rotating connecting column 121 and the sleeve end of the drive shaft 133 are provided with mutually mating cross-sections in the circumferential direction (not shown in the figure). This cross-section structure enables the transmission connection. Specifically, the outer side of the sleeve end of the rotating connecting column 121 has two symmetrical planes, and the inner side of the sleeve end of the transmission connecting column has a groove that matches the plane of the rotating connecting column 121. This cross-sectional structure prevents slippage and ensures the stability of power transmission.

[0031] To enhance the stability of the transmission connection between the flexible transmission sleeve 135 and the rotating connecting post 121 and the drive shaft 133, and to prevent slippage, more specifically, the inner and outer sides of the flexible transmission sleeve 135 are respectively provided with cross-sections for transmission engagement with the rotating connecting post 121 and the drive shaft 133, and the flexible transmission sleeve 135 is interference-fitted between the drive shaft 133 and the rotating connecting post 121. During installation, the flexible transmission sleeve 135 is first placed on the transmission connecting post, and then the rotating connecting post 121 is inserted. Due to the interference fit, the flexible transmission sleeve 135 will undergo a certain elastic deformation, tightly fitting between the two connecting posts.

[0032] In some embodiments, the milk shaker 100 further includes a housing 110, which serves as an external support and protective structure for the entire high-speed milk shaker, and its top defines a receiving cavity 111 for accommodating the milk shaker frame 120. The receiving cavity 111 provides space for the installation and rotation of the milk shaker frame 120, while also protecting the internal components from external factors that could interfere with or damage the device.

[0033] To position the rotation of the milk shaker 120 and prevent radial movement during rotation, ensuring the stability of the milk shaker 120's rotation, in some embodiments, a positioning post 122 is provided at the bottom of the milk shaker 120 along its rotation axis, and a limiting sleeve 112 is provided in the housing 110 to rotatably engage with the positioning post 122. The positioning post 122 and the limiting sleeve 112 are interlocked. Specifically, the positioning post 122 passes through the center of the rotating connecting post 121, playing a role in precise positioning during rotation.

[0034] To ensure the stability of the connection between the positioning post 122 and the limiting sleeve 112 and to prevent the positioning post 122 from being pulled out of the limiting sleeve 112, a snap-fit ​​structure is provided between the positioning post 122 and the limiting sleeve 112. For example, a raised step 113 is provided on the inner wall of the limiting sleeve 112, and a hook 1221 is provided at the end of the positioning post 122. During installation, the positioning post 122 is inserted into the limiting sleeve 112, and the hook 1221 automatically snaps into the raised step 113. This snap-fit ​​structure can effectively prevent the positioning post 122 from axially moving during high-speed rotation, ensuring the stability of the rotation of the milk shaker frame 120.

[0035] To facilitate the installation and fixation of the limiting sleeve 112, in some embodiments, the bottom end of the limiting sleeve 112 is provided with a flange 114 extending circumferentially, and the limiting sleeve 112 is fixed to the housing 110 by the flange 114. Specifically, the flange 114 is fixed to the bottom of the mounting plate 117 by a long screw 115. This fixing method enables the limiting sleeve 112 to be firmly installed on the housing 110, further improving the reliability of the positioning of the milk shaker frame 120.

[0036] To facilitate the installation and layout of the components, and to provide suitable installation and rotation space for the milk shaker frame 120 and the drive shaft 133, in some embodiments, a mounting plate 117 is provided at the bottom of the receiving cavity 111. The mounting plate 117 has a through-cavity 116. The bottom of the milk shaker 120 is rotatably fitted on the top of the inner wall of the cavity 116, and the drive shaft 133 is rotatably fitted on the bottom of the inner wall of the cavity 116.

[0037] Specifically, the rotating connecting post 121 at the bottom of the milk shaker 120 can be rotatably fitted within the cavity 116. To ensure smooth rotation of the milk shaker 120 and the transmission components, a first bearing 1161 is installed between the top of the inner wall of the cavity 116 and the outer wall of the rotating connecting post 121. The rotating connecting post 121 is used for power connection with the drive device 130. The rotating connecting post 121 is rotatably fitted between the top of the inner wall of the cavity 116 and the first bearing 1161, allowing it to rotate smoothly under the drive of the drive device 130. A second bearing 1162 is installed between the bottom of the inner wall of the cavity 116 and the outer wall of the connecting post 121. The first bearing 1161 and the second bearing 1162 can reduce friction during rotation, improve transmission efficiency, ensure the coaxiality of the rotating components, reduce additional vibration caused by eccentricity, and enable the milk shaker 120 to rotate smoothly and reliably.

[0038] In this embodiment, the drive device 130 includes a motor 131 and a transmission mechanism 134. The output shaft 132 is connected to the output end of the motor 131. The transmission mechanism 134 includes a first pulley 1341 connected to the output shaft 132, a second pulley 1342 connected to the drive shaft 133, and a belt 1343 that is connected between the first pulley 1341 and the second pulley 1342.

[0039] Motor 131, serving as the power source, is fixedly mounted on the bottom of mounting plate 117. To reduce the overall height of the equipment, optimize the center of gravity distribution, and solve the problem of traditional electric conditioners being prone to swaying due to their high center of gravity, the output shaft of motor 131 is offset from the rotation center axis of the milk shaker 120. In this embodiment, motor 131 can be a DC brushless motor, which has advantages such as high efficiency, long lifespan, and low noise, providing reliable power for the stable operation of the equipment.

[0040] The transmission mechanism 134 is used to transmit the power of the motor 131 to the shaking frame 120. In some embodiments, the second pulley 1342 is integrally formed with the drive shaft 133. This design simplifies the structure, improves the synchronization and stability of the transmission, and reduces vibration caused by component assembly errors. When the motor 131 starts, its output shaft drives the first pulley 1341 to rotate. The first pulley 1341 transmits power to the second pulley 1342 through the belt 1343. Since the second pulley 1342 is integrally formed with the drive shaft 133, the drive shaft 133 rotates accordingly. During the rotation of the drive shaft 133, the power is transmitted to the rotating connecting column 121 through the flexible transmission sleeve 135, thereby driving the shaking frame 120 to rotate.

[0041] It is understood that, in some embodiments, the flexible transmission sleeve may be made of an elastic damping material, such as nitrile rubber, which has good elasticity and damping properties and can effectively absorb and disperse vibration energy.

[0042] The operating principle and working process of the formula maker in this embodiment: When the high-speed milk shaker is started, the motor 131 is powered on and runs, and the output shaft of the motor 131 drives the first pulley 1341 to rotate. The first pulley 1341 transmits power to the second pulley 1342 through the belt 1343, and the second pulley 1342 drives the drive shaft 133 to rotate.

[0043] During rotation, the drive shaft 133 transmits power to the rotating connecting column 121 via the flexible transmission sleeve 135. In this process, the complex and uneven forces generated by the bias of the motor 131 can induce vibrations. The elasticity and damping characteristics of the flexible transmission sleeve 135 effectively absorb and disperse this vibrational energy. For example, during the operation of a high-speed milk shaker, the motor 131 rotates at high speed and transmits power through the drive shaft 133. Frequent relative movements and impacts occur between the rotating connecting column 121 and the drive shaft 133. The flexible transmission sleeve 135 acts like a buffer, cushioning the vibration and reducing its transmission. This not only reduces the amplitude of shaking during equipment operation, making it more stable, but also significantly reduces noise caused by vibration.

[0044] During the rotation of the milk shaker frame 120, the snap-fit ​​structure between the positioning post 122 and the limiting sleeve 112, as well as the first bearing 1161 and the second bearing 1162 within the cavity 116, provide stable support and positioning. The positioning post 122 rotates within the limiting sleeve 112, and the snap-fit ​​between the hook 1221 and the protrusion 113 prevents axial movement of the milk shaker frame 120. The first bearing 1161 and the second bearing 1162 reduce friction between the rotating connecting post 121 and the drive shaft 133 during rotation, ensuring their coaxiality and further reducing additional vibrations caused by eccentricity, enabling the milk shaker frame 120 to rotate smoothly and reliably.

[0045] After the baby bottle 200 is placed on top of the shaking frame 120, the device is started. Driven by the motor 131, the shaking frame 120 rotates at a set speed, and the rotation and shaking thoroughly mix the milk powder and water in the baby bottle 200. During this process, due to the flexible transmission structure and stable support structure of this invention, the shaking amplitude of the device during operation is significantly reduced, the operation is more stable, and the operating noise is also greatly reduced, so as not to disturb infants. Moreover, the stable rotational motion ensures that the milk powder is fully dissolved and avoids the generation of excessive air bubbles, thus improving the mixing quality.

[0046] This utility model is designed with full consideration of the convenience of equipment maintenance and repair. The motor 131 is fixed to the bottom of the mounting plate 117. When disassembling, simply loosen the screws fixing the motor 131 to remove it from the mounting plate 117 for maintenance or replacement. The operation is simple and convenient.

[0047] The belt 1343 of the transmission mechanism 134 may wear or loosen after long-term use. Since the belt 1343 is designed to be detachable, when it needs to be replaced, simply loosen the tensioning device of the belt 1343 to easily remove the old belt and install the new belt.

[0048] Although the flexible transmission sleeve 135 has a long service life, it may need to be replaced in extreme cases. Since the rotating connecting column 121 and the drive shaft 133 are connected by a sleeve, and the flexible transmission sleeve 135 is installed with an interference fit, the replacement process can be completed by first removing the shaking frame 120 from the housing 110, and then using appropriate tools to separate the rotating connecting column 121 from the drive shaft 133. The old flexible transmission sleeve 135 can then be removed and the new flexible transmission sleeve 135 can be installed. The entire replacement process does not require complicated operations or professional tools.

[0049] In addition, the limiting sleeve 112 is fixed to the mounting plate 117 by the flange 114 and the long screw 115. If the limiting sleeve 112 is damaged or needs adjustment, the limiting sleeve 112 can be removed for repair or replacement simply by unscrewing the long screw 115. This is convenient and quick, reducing the maintenance cost and difficulty of the equipment.

[0050] In summary, this utility model's motor-biased vibration-damping electric conditioner, through its unique structural design, solves the vibration problem caused by motor bias while achieving multiple advantages such as stable operation, efficient transmission, and easy maintenance. The various components in its specific implementation work together in a coordinated manner, providing a practical and feasible technical solution for improving the performance of the electric conditioner, and possesses good market application prospects and promotional value. The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A high-speed milk shaker comprising a milk shaking frame and a driving device for driving the milk shaking frame to rotate at high speed; characterized in that, The driving device includes: An output shaft for outputting rotational power; and A drive shaft for driving the milk shaking frame to rotate at high speed; The output shaft and the drive shaft are arranged at intervals within a reference plane and are substantially parallel to each other; and, The drive shaft and the milk shaking frame are connected by a flexible transmission sleeve adapted to produce elastic deformation. The flexible transmission sleeve is fixed between the drive shaft and the milk shaking frame so as to establish flexible transmission between the drive shaft and the milk shaking frame when there is a relative misalignment between the rotation axes of the drive shaft and the milk shaking frame.

2. The high-speed breast pump of claim 1, wherein, The angle between the projections of the drive shaft and the rotation axis of the milk shaking frame onto the reference plane does not exceed 5°.

3. The high-speed breast pump of claim 1, wherein, The milk shaking frame has a downwardly extending rotating connecting post, which is sleeved with the drive shaft, and the outer side of the flexible transmission sleeve is fixedly connected to the rotating connecting post.

4. The high-speed breast pump of claim 3, wherein, The sleeve end of the rotating connecting column and the sleeve end of the drive shaft have mutually cooperating cut surfaces in the circumferential direction, and the transmission sleeve is realized through the cut surfaces.

5. The high-speed breast pump of claim 4, wherein, The flexible transmission sleeve has tangential surfaces on its inner and outer sides that are designed to engage with the rotating connecting post and the drive shaft, and the flexible transmission sleeve is interference-fitted between the drive shaft and the rotating connecting post.

6. The high-speed breast pump of claim 1, wherein, It also includes a housing, the top of which defines a receiving cavity, in which the milk shaker is rotatably mounted.

7. The high-speed breast pump of claim 6, wherein, The bottom of the milk shaking frame is provided with a positioning post along its rotation axis, and the housing is provided with a limiting sleeve that rotates with the positioning post. The positioning post and the limiting sleeve are sleeved together.

8. The high-speed breast pump of claim 7, wherein, The bottom end of the limiting sleeve is provided with a flange extending in the circumferential direction, and the limiting sleeve is fixed to the housing by the flange.

9. The high-speed breast pump of claim 6, wherein, The bottom of the receiving cavity is provided with a mounting plate, the mounting plate has a through cavity, the bottom of the milk shaker is rotatably fitted with the top of the inner wall of the cavity, and the drive shaft is rotatably fitted with the bottom of the inner wall of the cavity.

10. The high-speed breast pump of claim 1, wherein, The drive device includes a motor and a transmission mechanism. The output shaft is connected to the output end of the motor. The transmission mechanism includes a first pulley connected to the output shaft, a second pulley connected to the drive shaft, and a belt connecting the first pulley and the second pulley.

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