Multi-degree-of-freedom composite vibration isolation milk shaking device
By setting a multi-degree-of-freedom composite vibration isolation device between the bottle drive unit and the shell, the problems of loud noise and shaking in traditional milk shakers are solved, and a more stable milk shaking process is achieved.
Patent Information
- Application Number
- CN202520351317.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-01
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-01
AI Technical Summary
Traditional milk shakers are noisy and have poor vibration isolation, which causes the equipment to shake and become unstable, affecting the normal operation of the milk shaking process.
A multi-degree-of-freedom composite vibration isolation device is adopted, including a first spring and a second spring with different stiffness coefficients configured in the vertical direction, combined with a positioning column and a limiting part, to isolate the mechanical vibration of the bottle drive device and prevent it from being transmitted to the shell.
It effectively isolates mechanical vibration, reduces noise, improves equipment stability, and ensures the smooth operation of the milk shaking process.
Smart Images
Figure CN223944291U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of milk preparation equipment technology, and more specifically to a multi-degree-of-freedom composite vibration-damping milk shaker. Background Technology
[0002] Infant formula is an essential food for infants during birth and growth, but many formulas dissolve slowly, requiring prolonged shaking to fully dissolve in water, which is very inconvenient. To make it easier to shake the bottle and ensure the formula dissolves completely, people often choose to use a bottle shaker instead of manually shaking the bottle to prepare formula for infants.
[0003] Traditional baby shakers typically use low speeds or manual shaking, which, while meeting basic milk-shaking needs, are significantly inefficient. Some less soluble formulas (such as a2 and Aptamil) may not dissolve even after 6-8 minutes of shaking, resulting in clumping and residue on the bottle. Low speeds mean longer mixing times for the formula and water, increasing waiting time for parents and potentially leading to clumping or uneven dissolution, which can negatively impact the baby's digestion and absorption.
[0004] Furthermore, in existing milk shaker products, when the milk shaker frame rotates at high speed, the unbalanced centrifugal force generates mechanical vibration, which not only produces noise but also causes the equipment to shake and become unstable. When the mechanical vibration is transmitted to the housing, it also causes the base to become unstable, affecting the normal operation of the milk shaker.
[0005] Therefore, there is an urgent need to design a milk shaker with good vibration isolation to solve the problems of high noise and poor vibration isolation of traditional milk shakers, and to improve the stability of the milk shaking operation. Utility Model Content
[0006] This application provides a multi-degree-of-freedom composite vibration-isolated milk shaker to solve the problems of high operating noise and poor vibration isolation effect of traditional milk shakers.
[0007] To achieve the above objectives, this application adopts the following technical solution: a multi-degree-of-freedom composite vibration-damping milk shaker, comprising a housing and a milk bottle driving device, wherein the milk bottle driving device comprises a shaking frame, a motor and a mounting plate, wherein the motor is fixedly connected to the mounting plate, and the shaking frame is rotatably attached to the motor.
[0008] The bottle drive device is attached to the housing in a multi-degree-of-freedom floating manner via at least one composite vibration isolation device. The composite vibration isolation device is adapted to isolate the mechanical vibration generated by the bottle drive device and prevent it from being transmitted to the housing.
[0009] The composite vibration isolation device comprises a first spring, a spring spacer and a second spring arranged in sequence in the up-down direction, and the first spring and the second spring are configured to have different stiffness coefficients, so that the composite vibration isolation device can isolate mechanical vibrations in a wider amplitude range.
[0010] Further, the stiffness coefficient K1 of the first spring and the stiffness coefficient K2 of the second spring are configured as K1 < K2.
[0011] Further, the stiffness coefficient K1 of the first spring and the stiffness coefficient K2 of the second spring are configured as 2K1 ≤ K2.
[0012] Further, the stiffness coefficient K1 of the first spring is in the range of 0.5-3.5 N / mm, and the stiffness coefficient K2 of the second spring is in the range of 2.5-7 N / mm.
[0013] Further, the composite vibration isolation device further comprises a positioning column, and the first spring and the second spring are sleeved on the positioning column.
[0014] Further, the positioning column is alternatively attached to the mounting disc or the shell, and the spring spacer is sleeved on the positioning column.
[0015] Further, the positioning column is attached to the shell, and the positioning column is configured with a limiting portion at a position above the first spring for limiting separation of the mounting disc and the shell.
[0016] Further, the mounting disc has an upper positioning groove for defining the position of the first spring, and the shell has a lower positioning groove for defining the position of the second spring.
[0017] Further, the first spring is clamped and positioned between the upper side of the spring spacer and the upper positioning groove, and the second spring is clamped and positioned between the lower side of the spring spacer and the lower positioning groove.
[0018] Further, the composite vibration isolation device is configured as three or four, and multiple composite vibration isolation devices are uniformly distributed in the circumferential direction.
[0019] The beneficial effects of the utility model are:
[0020] The product sets a composite vibration isolation device between the milk bottle driving assembly and the shell to isolate mechanical vibrations generated by the operation of the milk bottle driving assembly, and prevent the mechanical vibrations from being transmitted to the shell to cause shaking of the equipment. In the composite vibration isolation device, two springs with different stiffness coefficients are arranged in the up-down direction, which widens the amplitude width of the mechanical vibrations that can be absorbed by the vibration isolation device, thereby greatly improving the vibration isolation effect of the equipment, reducing the working noise and shaking of the milk frother, and improving the stability of the product during use. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a schematic view of the appearance of the utility model;
[0022] Figure 2 is a schematic view of the internal structure of the utility model;
[0023] Figure 3 is an exploded view of the milk bottle driving device and the shell;
[0024] Figure 4 is a schematic view of the structure of the composite vibration isolation device;
[0025] Figure 5 is a schematic view of one embodiment of the limiting part;
[0026] Figure 6 is an exploded view of the first spring, the second spring and the spring spacer;
[0027] Figure 7 is a schematic view of another connecting embodiment of the first spring, the second spring and the spring spacer.
[0028] Reference numerals in the drawings:
[0029] 10, shell; 20, milk bottle driving device; 21, milk shaking frame; 22, motor; 23, mounting disc; 24, mounting hole;
[0030] 30, composite vibration isolation device; 31, first spring; 32, second spring; 33, spring spacer; 34, positioning column;
[0031] 41, upper positioning groove; 42, lower positioning groove; 50, limiting part; 51, through hole; 52, disc head screw. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.
[0033] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0034] Example 1:
[0035] like Figures 1 to 5 As shown, this embodiment provides a multi-degree-of-freedom composite vibration-damping baby shaker, which mainly includes a housing 10 and a bottle driving device 20 disposed within the housing 10. The bottle driving device 20 is used to drive the bottle to rotate in order to achieve the function of shaking the milk.
[0036] Specifically, the bottle driving device 20 includes a shaking frame 21, a motor 22, and a mounting plate 23. The motor 22 is fixed in the middle of the mounting plate 23, providing power as a drive source. The upper end of the output shaft of the motor 22 is fixedly connected to the shaking frame 21, so that the shaking frame 21 can rotate synchronously with the output shaft of the motor 22. When the motor 22 is started, its output shaft drives the shaking frame 21 to rotate, thereby shaking the bottle placed in the shaking frame 21.
[0037] To effectively reduce the mechanical vibration generated by the bottle drive device 20 during operation and prevent this vibration from being transmitted to the housing 10, thereby affecting the overall stability and service life of the shaker, this embodiment incorporates a composite vibration isolation device 30 between the bottle drive device 20 and the housing 10. The composite vibration isolation device 30 allows the bottle drive device 20 to be suspended above the housing 10 in a multi-degree-of-freedom floating manner, thus effectively isolating and dissipating mechanical vibration.
[0038] Specifically, the composite vibration isolation device 30 includes a first spring 31, a spring spacer 33, and a second spring 32 arranged sequentially in the vertical direction. The first spring 31 and the second spring 32 are both configured with different stiffness coefficients. This design enables the composite vibration isolation device 30 to have a good vibration isolation effect over a wider amplitude range.
[0039] As an optional embodiment, the internal structure of the milk shaker is optimized to reduce the size of the milk shaker and make it easy to store and carry. Specifically, a mounting hole 24 is formed in the middle of the mounting disc 23, and the motor 22 is fixed to the mounting disc 23 through the mounting hole 24 from bottom to top and then through fasteners (such as screws, bolts, etc.). Such design not only reduces the size of the bottle driving device 20, but also makes the layout of the entire device more compact and reasonable.
[0040] As a preferred embodiment, when configuring the first spring 31 and the second spring 32, the stiffness coefficient K1 of the first spring 31 is less than the stiffness coefficient K2 of the second spring 32. Specifically, the stiffness coefficient K1 of the first spring 31 can be in the range of 0.5-3.5 N / mm, and the stiffness coefficient K2 of the second spring 32 can be in the range of 2.5-7 N / mm. Such configuration can make the composite vibration isolation device 30 first elastically deform to absorb and isolate mechanical vibrations with small amplitude when subjected to mechanical vibrations, and then the second spring 32 elastically deforms to absorb and isolate mechanical vibrations with large amplitude. Thus, the kinetic energy generated by mechanical vibration is converted into elastic potential energy of the spring, and is eventually consumed, preventing vibration from being transmitted to the shell 10.
[0041] Further, in order to make the composite vibration isolation device 30 have better vibration isolation effect and cover a wider amplitude range, the stiffness coefficients of the first spring 31 and the second spring 32 are preferably configured as 2K1≤K2. Such configuration can ensure that the composite vibration isolation device 30 can effectively absorb and isolate mechanical vibrations of different amplitudes, thereby improving the vibration isolation and damping performance of the entire device.
[0042] Specifically, the spring preferably adopts a cylindrical spiral spring or a conical spiral spring, or further makes the composite vibration isolation device 30 compact in structure, and can also adopt a butterfly spring. For example, in actual production, the first spring 31 selects a cylindrical spiral spring with a stiffness coefficient of 2 N / mm, and the second spring 32 selects a cylindrical spiral spring with a stiffness coefficient of 6 N / mm.
[0043] In addition, in order to further improve the stability and reliability of the composite vibration isolation device 30, a spring spacer 33 can also be provided between the first spring 31 and the second spring 32. The spring spacer 33 can be made of rubber, plastic or other elastic materials, which can play a certain buffering and damping effect, and can also prevent the first spring 31 and the second spring 32 from being damaged by mutual friction or collision during long-term use.
[0044] When the milk bottle driving device 20 is working, the mechanical vibration generated thereby will not only be conducted to the shell 10 through the first spring 31 and the second spring 32, but also can cause the resonance phenomenon of the whole device. In order to effectively avoid the occurrence of this situation, the structure of the composite vibration isolation device 30 is further optimized.
[0045] Specifically, the positioning column 34 is arranged in the composite vibration isolation device 30, and the first spring 31 and the second spring 32 are sleeved on the positioning column 34. The positioning column 34 can be selectively attached to the mounting disc 23 or the shell 10, and in the embodiment, the positioning column 34 is preferably attached to the shell 10. The advantage of such arrangement is that when the milk bottle driving device 20 is working, the mechanical vibration generated thereby will be conducted to the first spring 31 and the second spring 32 through the positioning column 34, and the first spring 31 and the second spring 32 will elastically deform under the limitation of the positioning column 34. Due to the fixing effect of the positioning column 34, the first spring 31 and the second spring 32 will not be separated or misaligned when elastically deformed, thereby ensuring the stability and reliability of the composite vibration isolation device 30.
[0046] Meanwhile, when the milk bottle driving device 20 is in the milk shaking process, it can cause the whole device to tilt or overturn due to the excessive shaking force or the uneven weight distribution of the milk bottles in the milk shaking frame 21. In order to effectively avoid the occurrence of this situation, the structure of the milk shaker is further improved. Specifically, a limiting portion 50 is arranged between the mounting disc 23 and the shell 10, for limiting the tilting or overturning of the milk bottle driving device 20 relative to the shell 10. The limiting portion 50 can be realized in various structural forms, such as a protrusion, a groove, a buckle, etc.
[0047] As shown in Figure 7 As another optional embodiment, in order to optimize the product structure and simultaneously realize the up-down fixation of the first spring 31 and the second spring 32, the spring spacer 33 can be further designed as follows: an upper cylindrical table is arranged at the upper end surface of the spring spacer 33, and a lower cylindrical table is arranged at the lower end surface of the spring spacer 34, and then the first spring 31 and the second spring 32 are respectively sleeved in the upper cylindrical table and the lower cylindrical table (cylindrical table and spring interference connection), at this time, the good up-down fixation of the first spring 31 and the second spring 32 can be ensured, and then the positioning column 34 can be arranged at other positions. The cylindrical table can also be replaced by a component having the function of connecting the first spring 31 and the second spring 32, such as a clamping groove, a buckle, etc., which is not specifically limited in the present application and is also considered to fall within the protection scope of the present application.
[0048] Embodiment 2:
[0049] As shown in Figures 3 to 6As shown, the milk bottle driving device 20 will float in a small range in the horizontal and vertical directions of the space during the process of eliminating mechanical vibration due to the conversion of mechanical energy into elastic potential energy. In order to avoid the milk bottle driving device 20 from being separated from the composite vibration isolation device 30 during the vibration elimination process, a limiting part 50 is combined with the positioning column 34 to realize the limiting function of the milk bottle driving device 20 on the basis of the above-mentioned optimized structure.
[0050] Specifically, a through hole 51 corresponding to the positioning column 34 is arranged on the lower surface of the mounting disc 23, the positioning column 34 is extended to pass through the through hole 51 from bottom to top, and a disc head screw 52 is additionally arranged at the extending end of the positioning column 34. The diameter of the disc head screw 52 is larger than that of the through hole 51, and the through hole 51 and the positioning column 34 are in clearance fit. The clearance fit can prevent the positioning column 34 from completely limiting the horizontal freedom of the mounting disc 23, and ensure that the milk bottle driving device 20 is always suspended in the space.
[0051] The advantages of such arrangement are that when the milk bottle driving device 20 is subjected to external force during the milk shaking process, the cooperation between the positioning column 34 and the through hole 51 can effectively limit the inclination or overturning of the milk bottle driving device 20 relative to the shell 10, and when the mounting disc 23 floats up and down during the milk shaking process, the disc head screw 51 can limit the maximum floating distance of the mounting disc 23, so that the mounting disc 23 will not be separated from the shell 10, thereby improving the stability of the milk shaking work.
[0052] During the actual work of the milk shaker, the connection between the two springs and the mounting disc 23 and the shell 10 will be loose and dislocated due to the continuous compression and rebound of the two springs. The load weight of the milk bottle driving assembly 20, the milk bottle and the liquid therein will cause the springs to bend and deform outward from the middle part. Even if the positioning column 34 has been added, it still cannot completely guarantee that the two springs will always be in good abutment with the shell 10 and the mounting disc 23 during the work.
[0053] To this end, an upper positioning groove 41 is arranged at the lower end of the mounting disc 23 to hold the upper end of the first spring 31. Meanwhile, a lower positioning groove 42 is arranged on the housing 10 to stably hold the second spring 32. In this way, when the milk bottle driving assembly is working, the spring will not be dislocated or loose from the housing 10 and the mounting disc 23. Since the milk bottle driving device 20 is floatingly suspended above the composite vibration isolation device 30, the composite vibration isolation device 30 bears the entire load of the milk bottle driving device 30. To further increase the stability of the structure and improve the vibration reduction performance of the product, the number of the composite vibration isolation devices 30 is determined according to the weight of the milk bottle driving device 20 and the maximum load that can be driven by the milk bottle driving device 20 during the design. As a preferred embodiment, three composite vibration isolation devices 30 are evenly arranged in the circumferential direction. When the set rotating speed of the motor 22 is high, four or more composite vibration isolation devices 30 can be evenly arranged in the circumferential direction.
[0054] The embodiments of the present application are described above with reference to the drawings, and the embodiments and features in the present application can be combined with each other without conflict, and the present application is not limited to the above-mentioned specific embodiments, which are only illustrative but not restrictive. Those skilled in the art can make many forms without departing from the purpose of the present application and the scope protected by the claims under the inspiration of the present application, which all belong to the protection of the present application.
Claims
1. A multi-degree-of-freedom composite vibration isolation milk shaking device, comprising a housing and a milk bottle driving device, the milk bottle driving device comprising a milk shaking frame, a motor and a mounting disc, the motor being fixed to the mounting disc, and the milk shaking frame being rotationally attached to the motor; characterized in that: the milk bottle driving device is attached to the housing in a multi-degree-of-freedom floating manner through at least one composite vibration isolation device, the composite vibration isolation device being adapted to isolate mechanical vibrations generated by the milk bottle driving device and prevent the transmission thereof to the housing; wherein the composite vibration isolation device comprises a first spring, a spring spacer and a second spring arranged in sequence in the up-down direction, the first spring and the second spring being configured to have different stiffness coefficients, so that the composite vibration isolation device can isolate mechanical vibrations in a wider amplitude range.
2. The multi-degree of freedom composite isolation milk shaking device according to claim 1, characterized in that, The stiffness coefficient K1 of the first spring and the stiffness coefficient K2 of the second spring are configured as K1 < K2.
3. The multi-degree of freedom composite isolation milk shaking device according to claim 2, characterized in that, The stiffness coefficient K1 of the first spring and the stiffness coefficient K2 of the second spring are configured as 2K1 ≤ K2.
4. The multi-degree of freedom composite isolation milk shaking device according to claim 1 or 2, characterized in that, The stiffness coefficient K1 of the first spring is in the range of 0.5-3.5 N / mm, and the stiffness coefficient K2 of the second spring is in the range of 2.5-7 N / mm.
5. The multi-degree of freedom composite isolation milk shaking device according to claim 1, characterized in that, The composite vibration isolation device further comprises a positioning column, and the first spring and the second spring are sleeved on the positioning column.
6. The multi-degree of freedom composite isolation milk shaking device according to claim 5, characterized in that, The positioning column is alternatively attached to the mounting disc or the housing, and the spring spacer is sleeved on the positioning column.
7. The multi-degree of freedom composite isolation milk shaking device according to claim 6, characterized in that, The positioning column is attached to the housing, and the positioning column is provided with a limiting portion at a position above the first spring for limiting the separation of the mounting disc and the housing.
8. The multi-degree of freedom composite isolation milk shaking device according to claim 1, characterized in that, The mounting disc has an upper positioning groove for defining the position of the first spring, and the housing has a lower positioning groove for defining the position of the second spring.
9. The multi-degree of freedom composite isolation milk-shaking device according to claim 8, characterized in that, The first spring is clamped and positioned between the upper side of the spring spacer and the upper positioning groove, and the second spring is clamped and positioned between the lower side of the spring spacer and the lower positioning groove.
10. The multi-degree of freedom composite isolation milk shaking device according to claim 1, characterized in that, The composite vibration isolation device is configured as three or four, and a plurality of the composite vibration isolation devices are uniformly distributed in the circumferential direction.