A water bath milk warmer

Abstract

This utility model discloses a water bath bottle warmer, comprising: a base, on which a working chamber and a rotating bracket are provided, the rotating bracket being rotatably mounted in the working chamber; a first guide member is provided at the bottom of the rotating bracket, the first guide member being used to slide or roll with the cavity wall of the working chamber when the rotating bracket rotates; and a driving member, the driving member being used to drive the rotating bracket to rotate. In use, the driving member drives the rotating bracket to rotate. Because the rotating bracket rolls or slides with the cavity wall of the working chamber through the first guide member, a stable motion track is provided for the rotating bracket, restricting its movement within a specific trajectory, so that it can only rotate in a predetermined direction and manner. This provides stable support and guidance for the rotation of the rotating bracket, reducing radial or axial swaying caused by uneven force, and indirectly reducing the probability of noise caused by the shaking of the rotating bracket.

Description

Technical Field

[0001] This utility model relates to the field of small household appliances, and in particular to a water bath bottle warmer. Background Technology

[0002] A water bath bottle warmer is a device that heats or keeps milk warm by circulating warm water. The device evenly surrounds the bottle with warm water, slowly heating the milk (breast milk or formula) to a suitable temperature. Compared to direct heating, water conduction is gentler and can reduce the damage of nutrients such as lactoferrin and vitamins caused by high temperatures.

[0003] Current water bath bottle warmers incorporate a motor-driven rotating bracket. The bottle is mounted on the bracket, and the rotation of the bracket drives the bottle to rotate, maximizing the contact area between all parts of the bottle and the warm water. Heat is then evenly conducted to the milk through the bottle walls, achieving heating. However, in practical applications, the motor drive has mechanical transmission errors. During rotation, issues such as insufficient bearing precision, assembly clearances, or eccentric loads can easily cause radial or axial wobble. This leads to violent shaking of the milk inside the bottle, forming unnecessary air bubbles and affecting its usability. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art, the present invention provides a water bath bottle warmer, which provides a guide on the rotating bracket to guide the rotating bracket to rotate stably and reduce the probability of the rotating bracket shaking during rotation.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A water bath bottle warmer, comprising:

[0007] A base is provided with a working cavity and a rotating bracket, the rotating bracket being rotatably mounted in the working cavity; a guide portion is provided inside the working cavity;

[0008] The bottom of the rotating bracket is provided with a first guide member, which is used to slide or roll with the guide part when the rotating bracket rotates;

[0009] A driving element, which is used to drive the rotating bracket to rotate.

[0010] Furthermore, the first guide includes a rolling element, and the rotating bracket is provided with a positioning groove. The rolling element is installed in the positioning groove and rolls in cooperation with the cavity wall of the working cavity.

[0011] Furthermore, the first guide also includes a connecting rod, which is rotatably inserted through the rolling element and connected to the side wall of the positioning groove.

[0012] Furthermore, the first guide includes a slider connected to the rotating bracket, and a groove is provided in the working cavity, the groove extending circumferentially along the working cavity, and the slider slidingly engaging with the groove.

[0013] Furthermore, there are multiple first guide members, which are distributed at intervals in the circumferential direction of the rotating bracket.

[0014] Furthermore, the base is provided with a positioning seat and a second guide member. The positioning seat is provided with a through groove that passes through the positioning seat. The bottom of the rotating bracket is provided with a rotating column that is rotatably inserted into the through groove. The driving member is used to drive the rotating column to rotate.

[0015] The second guide is installed in the through groove and abuts against the outer peripheral wall of the rotating column. The second guide is used to roll with the outer peripheral wall of the rotating column when the rotating column rotates.

[0016] Furthermore, the second guide includes a needle roller, and the positioning seat has a positioning notch. The needle roller passes through the positioning notch and abuts against the outer peripheral wall of the rotating column.

[0017] Furthermore, the positioning seat is provided with a plurality of positioning notches, which are distributed at intervals in the circumferential direction of the positioning seat, and a plurality of second guide members are provided, which are correspondingly arranged with the plurality of positioning notches.

[0018] Furthermore, the second guide has a sound-absorbing layer that abuts against the outer periphery of the rotating column.

[0019] Furthermore, the water bath bottle warmer also includes a bracket, which is detachably mounted on the rotating support.

[0020] In summary, the water bath bottle warmer provided by this utility model has the following technical effects: When in use, the driving component drives the rotating bracket to rotate. Since the rotating bracket rolls or slides with the cavity wall of the working chamber through the first guide component, it provides a stable motion track for the rotating bracket, restricting the movement of the rotating bracket within a specific trajectory, so that it can only rotate in a predetermined direction and manner, thereby providing stable support and guidance for the rotation of the rotating bracket and reducing the probability of radial or axial swaying during the rotation of the rotating bracket. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is an exploded view of the structure of this utility model;

[0024] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0025] Figure 4 This is a schematic diagram showing the connection between the base and the rotating support in this utility model;

[0026] Figure 5 This is a cross-sectional view of the present invention from another perspective;

[0027] Figure 6 This is a schematic diagram of the base structure of this utility model;

[0028] Figure 7 This is a schematic diagram of the rotating support structure of this utility model.

[0029] The meanings of the reference numerals in the attached figures are as follows:

[0030] 10. Base; 11. Working chamber; 12. Positioning seat; 121. Through groove; 122. Positioning notch; 20. Rotating bracket; 21. Positioning groove; 22. Rotating column; 30. First guide; 31. Rolling element; 32. Connecting rod; 40. Driving element; 50. Second guide; 60. Bracket; 70. Baby bottle. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0033] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0034] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0035] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0036] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0037] Example 1,

[0038] See Figures 1 to 7 This utility model discloses a water bath bottle warmer, including a base 10 and a drive component 40. The base 10 is provided with a working cavity 11 and a rotating bracket 20. The rotating bracket 20 is rotatably mounted in the working cavity 11. A guide part is provided in the working cavity 11. A first guide 30 is provided at the bottom of the rotating bracket 20. The first guide 30 slides or rolls with the guide part when the rotating bracket 20 rotates. The drive component 40 is used to drive the rotating bracket 20 to rotate.

[0039] When the first guide member 30 and the guide portion adopt a sliding engagement, the first guide member 30 can be a slider or pulley structure, and the corresponding guide portion is a slide rail or guide groove set in the working cavity 11 and extending circumferentially along the working cavity 11. Embedding the first guide portion into the guide portion, this embedded engagement effectively constrains the radial displacement of the rotating bracket 20, allowing it to slide only circumferentially, greatly preventing the bracket from shifting to the left or right during rotation. For example, in actual operation, when the rotating bracket 20 is subjected to external force and attempts to move radially, the slider or pulley will be restricted by the sidewall of the slide rail or guide groove, unable to deviate from the predetermined motion trajectory, thus providing stable support and guidance for the rotating bracket 20, reducing the probability of it swaying in the radial or axial direction, indirectly reducing the risk of noise caused by the swaying of the rotating bracket 20, and improving the user experience.

[0040] When the first guide 30 and the guide part adopt a rolling engagement method, the first guide 30 can be a structure such as a roller, ball, or universal wheel. In this scenario, the guide part is formed by the end face of the working cavity 11 that contacts the first guide 30. Through the curved surface design of the first guide 30, multi-point flexible contact with the cavity wall can be achieved. When the rotating bracket 20 experiences a slight radial offset, the first guide 30 (such as a roller, ball, or universal wheel) will automatically adjust its contact position according to the tangential direction of the cavity wall, effectively offsetting the offset by utilizing the geometric characteristics of the spherical surface. Taking a ball as an example, when the rotating bracket 20 experiences radial offset, the ball will roll along the tangential direction of the cavity wall. The reaction force generated by its own rolling will cause the rotating bracket 20 to return to the correct position, achieving a forced reset function, thereby effectively preventing the rotating bracket 20 from shaking due to offset during rotation.

[0041] Meanwhile, the curved surface design of the first guide 30 (roller, ball, or caster, etc.) allows it to use rolling friction instead of sliding friction when in contact with the wall of the working cavity 11, reducing friction. When the rotating bracket 20 produces a slight radial offset, the roller can adjust its position along the tangent of the cavity wall by rolling, and correct the offset to a certain extent by using its own geometric characteristics, thereby alleviating the shaking.

[0042] It should be noted that, to further improve the stability of the rotating support 20, when using a rolling engagement method, at least two first guide members 30 can be used, symmetrically distributed on both sides of the rotating support 20. This symmetrical layout can share the weight of the rotating support 20, while providing balanced support and guidance during its rotation. During rotation, the first guide members 30 on both sides can adjust the posture of the rotating support 20 in real time. Even if there is slight uneven force or deviation, the guide members on both sides can correct it through mutual cooperation, thereby effectively reducing the probability of the rotating support 20 shaking and improving the stability and reliability of the bottle warmer during operation.

[0043] In addition, the driving component 40 in this embodiment can be a drive motor, such as a servo motor or a stepper motor. During assembly, the rotating bracket 20 can be connected to the power output shaft of the driving component 40 by means of ball bearings or needle bearings.

[0044] Furthermore, the first guide 30 includes a rolling element 31, and the rotating bracket 20 is provided with a positioning groove 21. The rolling element 31 is installed in the positioning groove 21 and rolls with the cavity wall of the working cavity 11. When the first guide 30 includes a rolling element 31, the guide portion in this embodiment is the end face of the working cavity 11 that contacts the rolling element, that is, the cavity wall of the working cavity 11 is formed as the guide portion.

[0045] During assembly, the positioning groove 21 provides an accurate installation position for the rolling element 31, ensuring that the contact point between the rolling element 31 and the cavity wall of the working chamber 11 is always within the design range. Simultaneously, the sidewall of the positioning groove 21 prevents the rolling element 31 from lateral displacement or detachment during high-speed rotation or external impact, thus improving structural reliability.

[0046] It should be noted that the rolling element 31 can be any existing ball, roller, or caster wheel. The rolling element 31 is embedded in the positioning groove 21, and a stainless steel elastic retaining ring is installed at the groove opening. Axial locking is achieved through interference fit to prevent it from falling out. At the same time, a certain radial clearance is reserved to ensure the flexibility of the rolling element 31.

[0047] Of course, when the rolling element 31 is a roller or a caster wheel, it can also be mounted on a rotating shaft and then connected to the groove wall of the positioning groove 21 through the rotating shaft so that the rolling element 31 can roll.

[0048] Preferably, the rolling element 31 in this embodiment is an existing universal wheel or a rolling element, and the first guide 30 also includes a connecting rod 32. During assembly, the connecting rod 32 is rotatably inserted into the rolling element 31 and connected to the side wall of the positioning groove 21 so that the rolling element 31 is stably connected to the positioning groove 21, while also being able to roll flexibly.

[0049] More specifically, multiple first guide members 30 are provided, spaced apart circumferentially on the rotating bracket 20. These spaced-apart first guide members 30 act like a stable polygonal support structure, constraining the rotating bracket 20 from multiple directions. When the rotating bracket 20 experiences a slight shift, the first guide members 30 at different positions can simultaneously function to quickly adjust its posture. For example, when the rotating bracket 20 shifts clockwise, the first guide members 30 on the right and rear sides will use their rolling reaction force to push the rotating bracket 20 back to its upright position, greatly reducing the swaying amplitude. This provides users with a quieter and more stable user experience.

[0050] Compared to a single first guide member 30, the pressure borne by each first guide member 30 can be reduced, effectively improving the load-bearing capacity of the rotating bracket 20. Even when a heavy bottle 70 is placed on the bottle warmer, or when it is subjected to unexpected lateral forces during operation, the first guide members 30 work together to ensure that the rotating bracket 20 is subjected to balanced forces, maintains stable rotation, and extends the service life of the equipment.

[0051] Example 2,

[0052] Furthermore, in this embodiment, the first guide 30 includes a slider connected to the rotating bracket 20, and a groove is provided in the working cavity 11, which extends circumferentially along the working cavity 11, and the slider slides in cooperation with the groove.

[0053] Specifically, the first guide member 30 can be a slider or pulley structure, and the corresponding guide part is a slide rail or guide groove disposed in the working cavity 11 and extending circumferentially along the working cavity 11. Embedding the first guide part into the guide part, this embedded fit effectively constrains the radial displacement of the rotating bracket 20, allowing it to slide only circumferentially, greatly preventing the bracket from shifting to the left or right during rotation. For example, in actual operation, when the rotating bracket 20 is subjected to external force and attempts to move radially, the slider or pulley will be restricted by the sidewall of the slide rail or guide groove, preventing it from deviating from its predetermined trajectory, thus providing stable support and guidance for the rotating bracket 20 and reducing the probability of it swaying in the radial or axial directions.

[0054] Example 3,

[0055] Furthermore, based on Embodiment 1 and Embodiment 2, the base 10 is provided with a positioning seat 12 and a second guide 50. The positioning seat 12 is provided with a through groove 121 that passes through the positioning seat 12. The bottom of the rotating bracket 20 is provided with a rotating column 22 that is rotatably inserted into the through groove 121. The driving member 40 is used to drive the rotating column 22 to rotate. The second guide 50 is installed in the through groove 121 and abuts against the outer peripheral wall of the rotating column 22. The second guide 50 rolls with the outer peripheral wall of the rotating column 22 when the rotating column 22 rotates.

[0056] Specifically, since the working chamber 11 of the water bath bottle warmer is soaked in water for a long time, if the rotating column 22 is connected to the power output shaft of the motor through precision bearings such as ball bearings or needle bearings, it is prone to rust after long-term use. In addition, the grease used in the bearing will be damaged by soap base structure in hot water, affecting its use. This will cause the rotating bracket 20 to jam after long-term use, requiring frequent replacement.

[0057] Therefore, in this embodiment, after the rotating column 22 passes through the through groove 121, the second guide 50 (such as a needle roller, rolling shaft, or other rotatable pin) located in the through groove 121 rolls with the outer peripheral wall of the rotating column 22, driving the rotating column 22 to operate smoothly through rolling friction. Compared with the closed structure limitation of traditional bearings, the open multi-point rolling contact mode achieves radial constraint and axial floating control of the rotating column 22, thereby replacing precision components such as ball bearings and needle bearings, and directly connecting it to the power output shaft of the drive component 40. Without the need for ball bearings or needle bearings to connect to the power output shaft of the drive component 40, the probability of bearing replacement is reduced, the frequency of equipment maintenance is lowered, and production costs are saved to a certain extent.

[0058] It should be noted that the second guide 50 can be made of materials that are not prone to rust, such as plastic or stainless steel. Even if it wears out after long-term use, the replacement cost is lower than that of precision parts such as ball bearings.

[0059] Preferably, the second guide 50 in this embodiment includes a needle roller. During assembly, a positioning notch 122 is provided on the positioning seat 12 to provide a mounting base for the needle roller. After the needle roller passes through the positioning notch 122, it abuts against the outer peripheral wall of the rotating column 22 from the notch, thus achieving rolling engagement with the outer peripheral wall of the rotating column 22. When the needle roller needs to be replaced, the user can remove the needle roller from the notch of the positioning notch 122 to complete the replacement, making maintenance more convenient.

[0060] It should be noted that the second guide 50 can be made of existing plastic materials with low coefficients of friction, such as polytetrafluoroethylene, polyethylene, or polyoxymethylene, so that the second guide 50 can be used normally even after long-term immersion in water. In addition, due to the low coefficient of friction of the second guide 50, when it rolls against the outer peripheral wall of the rotating column 22, it can significantly reduce rotational resistance, achieve smooth rotation without relying on a large amount of lubricating grease, and at the same time, effectively reduce noise generation.

[0061] Furthermore, the positioning seat 12 is provided with a plurality of positioning notches 122, which are distributed at intervals in the circumferential direction of the positioning seat 12. A plurality of second guide members 50 are provided, and the plurality of second guide members 50 are correspondingly arranged with the plurality of positioning notches 122.

[0062] Specifically, the combination of multiple second guide members 50 and multiple positioning notches 122 forms structural redundancy. When one of the second guide members 50 fails due to wear, foreign object jamming, or other reasons, the remaining guide members can still maintain the basic operation of the rotating column 22. This reduces the risk of downtime caused by sudden failures and improves the overall reliability of the bottle warmer.

[0063] In addition, the radial and axial forces on the rotating column 22 can be evenly distributed to the positioning seat 12 through the multiple positioning notches 122 distributed circumferentially, which can effectively avoid local stress concentration, reduce wear caused by uneven force, and extend the service life of the component.

[0064] Furthermore, the second guide 50 has a sound-absorbing layer that abuts against the outer periphery of the rotating column 22.

[0065] Specifically, the sound-absorbing layer uses existing sound-absorbing materials with excellent self-lubricating properties, such as polytetrafluoroethylene (PTFE) or rubber composites with added graphite or molybdenum disulfide, to form a sleeve or sheet structure. This structure is either wrapped around the outer periphery of the second guide 50 or sprayed onto the outer periphery of the second guide 50. Because PTFE and rubber composites with added graphite or molybdenum disulfide have extremely low coefficients of friction, they can significantly reduce the friction between the PTFE and the rotating column 22. This allows the PTFE to effectively absorb vibration while ensuring that excessive compressive resistance is not generated when in contact with the rotating column 22, enabling the rotating column 22 to rotate normally.

[0066] Of course, the second guide 50 can also be made of polytetrafluoroethylene (PTFE) material, with a sound-absorbing layer integrally molded on its surface to achieve noise reduction.

[0067] More specifically, the water bath bottle warmer also includes a bracket 60, which is detachably mounted on the rotating support 20. The bracket 60 can be connected to the rotating support 20 via snap-fit ​​or threaded connection. After the bracket 60 is installed, the baby bottle 70 can be placed on the bracket 60. The rotation of the rotating support 20 causes the bracket 60 to rotate, resulting in the baby bottle 70 rotating synchronously. This ensures that the baby bottle 70 comes into full contact with the warm water in the working chamber 11 during rotation, thus heating the milk. When the bracket 60 needs to be replaced or cleaned after long-term use, it can be easily removed and replaced separately, making maintenance convenient.

[0068] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A water bath breast warmer, characterized in that, include: A base, wherein the base is provided with a working cavity and a rotating bracket, and the rotating bracket is rotatably mounted in the working cavity; The working chamber is equipped with a guide section; The bottom of the rotating bracket is provided with a first guide member, which is used to slide or roll with the guide part when the rotating bracket rotates; A driving element, which is used to drive the rotating bracket to rotate.

2. The water bath bottle warmer as described in claim 1, characterized in that, The first guide includes a rolling element, and the rotating bracket is provided with a positioning groove. The rolling element is installed in the positioning groove and rolls in cooperation with the cavity wall of the working cavity.

3. The water bath baby bottle warmer of claim 2, wherein, The first guide also includes a connecting rod, which is rotatably inserted through the rolling element and connected to the side wall of the positioning groove.

4. The water bath baby bottle warmer of claim 1, wherein, The first guide includes a slider connected to the rotating bracket. The working cavity is provided with a groove that extends circumferentially along the working cavity, and the slider slides in cooperation with the groove.

5. The water bath baby bottle warmer of claim 1, wherein, The first guide is provided in multiple forms, and the multiple first guides are distributed at intervals in the circumferential direction of the rotating bracket.

6. The water bath baby bottle warmer of any one of claims 1-5, wherein, The base is provided with a positioning seat and a second guide. The positioning seat is provided with a through groove that passes through the positioning seat. The bottom of the rotating bracket is provided with a rotating column that is rotatably inserted into the through groove. The driving member is used to drive the rotating column to rotate. The second guide is installed in the through groove and abuts against the outer peripheral wall of the rotating column. The second guide is used to roll with the outer peripheral wall of the rotating column when the rotating column rotates.

7. The water bath baby bottle warmer of claim 6, wherein, The second guide includes a needle roller, and the positioning seat has a positioning notch. The needle roller passes through the positioning notch and abuts against the outer peripheral wall of the rotating column.

8. The water bath baby bottle warmer of claim 7, wherein, The positioning seat is provided with a plurality of positioning notches, which are distributed at intervals in the circumferential direction of the positioning seat. The second guide is provided with a plurality of second guides, which are arranged corresponding to the plurality of positioning notches.

9. The water bath baby bottle warmer of claim 6, wherein, The second guide has a sound-absorbing layer that abuts against the outer periphery of the rotating column.

10. The water bath baby bottle warmer of claim 1, wherein, The water bath bottle warmer also includes a bracket, which is detachably mounted on the rotating support.

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