Infant cradle and its base

Abstract

This application relates to an infant soothing cradle and its base. The base includes a bottom shell, a motion support, a first drive mechanism, and a second drive mechanism. The motion support has a first end and a second end along a first direction, with the first end movably mounted on the bottom shell along a second direction. The first drive mechanism is fixed to the bottom shell, and its output end is connected to the motion support for driving the motion support to move along the second direction. The second drive mechanism is fixed to the bottom shell, and its output end is slidably connected to the motion support along the second direction, driving the second end of the motion support to swing around the first end along an arc-shaped trajectory. Since both the first and second drive mechanisms are fixed to the bottom shell, the overall center of gravity of the base is concentrated on the bottom shell, reducing the risk of swaying or tipping due to center of gravity shift during movement, making it particularly suitable for infant use.

Description

Technical Field

[0001] This application relates to the field of furniture technology, and in particular to infant cradles and their bases. Background Technology

[0002] Currently, infant cradles are widely used in the market. To meet the comfort and sleep needs of infants, people expect cradles to offer diverse swinging patterns. The base of an infant cradle is usually equipped with at least two drive mechanisms, which are connected by a motion support frame. This allows for the superposition of multiple motion modes from the at least two drive mechanisms, thereby increasing the swinging patterns of the infant cradle.

[0003] However, to achieve the superposition of the movement modes of at least two drive mechanisms, at least one motion mechanism is typically mounted on the motion support, or at least one motion mechanism moves along with the motion support. However, when the drive mechanism moves with the motion support, its weight causes the cradle's overall center of gravity to shift periodically with the movement trajectory. For example, when the support swings to its highest point, the center of gravity shifts upward and to one side; when it swings to its lowest point, the center of gravity shifts downward and to the other side. This periodic change in the center of gravity can easily cause the base to wobble, and even poses a risk of tipping over when the amplitude of movement is large, posing a safety hazard to infants and young children. Summary of the Invention

[0004] Therefore, it is necessary to provide an infant comfort cradle and its base to address the problem of instability of the base's center of gravity caused by the movement of the drive mechanism with the motion support.

[0005] A base for an infant soothing cradle, the base comprising:

[0006] Bottom shell;

[0007] The motion support has a first end and a second end along a first direction, the first end being movably disposed on the bottom shell along the second direction;

[0008] A first drive mechanism is fixed on the bottom shell. The output end of the first drive mechanism is connected to the motion bracket for driving the motion bracket to move along the second direction.

[0009] The second drive mechanism is fixed on the bottom shell. The output end of the second drive mechanism is slidably connected to the motion bracket along the second direction and is used to drive the second end of the motion bracket to swing around the first end along an arc trajectory.

[0010] In one embodiment, the bottom shell is provided with a track extending in a second direction, and the first end of the motion bracket is provided with a roller, which is rolledly connected to the track in the second direction.

[0011] In one embodiment, the outer periphery of the roller is provided with an annular groove, and the track is embedded in the annular groove;

[0012] The bottom shell includes a pressure cover, which is disposed on the side of the roller away from the track. The pressure cover and the roller are spaced apart, and the minimum distance between them is less than the depth to which the track is embedded in the roller.

[0013] In one embodiment, the motion support includes a first swing arm and a second swing arm. One end of the first swing arm is movably disposed on the bottom shell along a second direction, and the other end of the first swing arm is rotatably connected to the second swing arm. The second swing arm is slidably connected to the second drive mechanism.

[0014] In one embodiment, the second drive mechanism includes a second eccentric shaft extending in a second direction, and the second swing arm is rotatably connected to the second eccentric shaft and slidably connected to the second eccentric shaft in the second direction.

[0015] In one embodiment, the second drive mechanism is provided with the second eccentric shaft at both ends along the second direction, the second swing arm is provided in a one-to-one correspondence with the second eccentric shaft, and the first swing arm is provided in a one-to-one correspondence with the second swing arm.

[0016] In one embodiment, the first drive mechanism is located between the two first swing arms.

[0017] In one embodiment, the motion support includes a connecting seat, which is fixedly connected to the first swing arm;

[0018] The first driving mechanism includes a first eccentric shaft extending along a first direction, and a limiting groove extending along a vertical direction is provided on the motion bracket. The first eccentric shaft and the limiting groove are slidably connected along the vertical direction.

[0019] In one embodiment, the connecting seat is located on the side of the first drive mechanism away from the second drive mechanism, and the connecting seat is used to connect to the cradle.

[0020] In one embodiment, the base includes an elastic element, one end of which abuts against the bottom shell and the other end of which abuts against the motion bracket, and the elastic element is located between the first drive mechanism and the second drive mechanism.

[0021] In one embodiment, a control module is provided on the bottom shell, and speed sensors are respectively provided on the first drive mechanism and the second drive mechanism. The control module is used to adjust the speed of the first drive mechanism and the second drive mechanism according to the real-time speed detected by the speed sensors.

[0022] An infant comfort cradle includes a cradle and a base for the infant comfort cradle, the cradle being positioned above the motion support.

[0023] In one embodiment, the motion support includes a clamping structure, the clamping structure including a plurality of elastic grippers spaced apart along a circumference;

[0024] The bottom of the cradle is provided with a vertically extending insertion part, and a snap-fit ​​groove is provided on the outer wall of the insertion part. The end of the insertion part away from the cradle gradually tapers in a vertically downward direction.

[0025] The elastic gripper is held in the snap-fit ​​groove.

[0026] In one embodiment, the cradle includes a mounting frame, a connector, and at least two support arms. The connector is fixed above the base. One end of each support arm is connected to the connector, and the other end is connected to the mounting frame. The mounting frame is connected end to end to form a closed structure.

[0027] The aforementioned infant cradle and its base have a first end of a motion support movably mounted on the base shell along a second direction, and a second end slidably connected to the output shaft of a second drive mechanism along the second direction. This allows the motion support to move relative to the base shell along the second direction. A first drive mechanism, mounted on the base shell, drives the motion support to move the cradle along the first direction. A second drive mechanism, also mounted on the base shell and connected to the second end, drives the second end to swing up and down around the axis of the first end, thus causing the cradle on the support to swing up and down. Both the first and second drive mechanisms are fixed to the base shell, concentrating the overall center of gravity of the base within it, reducing the risk of swaying or tipping due to center of gravity shift during movement, making it particularly suitable for infant use. Simultaneously, the rigid connection between the drive components and the base shell prevents additional vibrations caused by the movement of the components with the support, reducing noise and making the cradle's swaying smoother, preventing startle to the infant. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an infant comfort cradle in one embodiment.

[0029] Figure 2 This is a schematic diagram of the structure of an infant comfort cradle in another embodiment.

[0030] Figure 3 This is a schematic diagram of the bottom shell in one embodiment.

[0031] Figure 4 This is a schematic diagram of the structure of the first driving mechanism, the second driving mechanism, and the motion support in one embodiment.

[0032] Figure 5 This is a schematic diagram of the structure of the second driving mechanism in one embodiment.

[0033] Figure 6 This is a schematic diagram of the connection structure between the first drive mechanism and the motion support in one embodiment.

[0034] Figure 7 This is a partial structural diagram of the motion support in one embodiment.

[0035] Figure 8 This is a schematic diagram of the connection structure between the connector and the connector base in one embodiment.

[0036] Figure 9 This is a schematic diagram of the connector structure in one embodiment.

[0037] Attached reference numerals: XX', first direction; YY', second direction; ZZ', vertical direction;

[0038] 10. Base; 20. Cradle; 21. Plug-in part; 22. Snap-in slot; 23. Mounting bracket; 24. Connector; 25. Support arm; 26. Cantilever; 27. Conical structure;

[0039] 100. Base shell; 110. Rail; 120. Cover; 130. Display screen;

[0040] 200, First drive mechanism; 210, First eccentric shaft; 220, First reduction gear assembly; 221, First large gear; 222, First small gear; 230, First worm gear assembly; 240, First motor;

[0041] 300, Second drive mechanism; 310, Second motor; 320, Second worm gear assembly; 330, Second reduction assembly; 331, Second large gear; 332, Second small gear; 340, Second eccentric shaft;

[0042] 400, motion support; 410, first end; 420, second end; 430, roller; 431, annular groove; 440, first swing arm; 450, second swing arm; 460, connecting seat; 461, limiting groove; 470, elastic element; 471, crossbeam; 480, clamping structure; 481, elastic gripper;

[0043] 500. Control module; 510. Speed ​​sensor;

[0044] 600, chassis; 610, arc arm; 620, enclosing cavity. Detailed Implementation

[0045] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0046] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0047] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0051] Combination Figures 1-4 One embodiment of this application provides a base 10 for an infant soothing cradle. The base 10 includes a bottom shell 100, a motion support 400, a first drive mechanism 200, and a second drive mechanism 300. The motion support 400 has a first end 410 and a second end 420 along a first direction XX'. The first end 410 is movably disposed on the bottom shell 100 along a second direction YY'. The first drive mechanism 200 is fixed on the bottom shell 100, and its output end is tractively connected to the motion support 400 to drive the motion support 400 to move along the second direction YY'. The second drive mechanism 300 is fixed on the bottom shell 100, and its output end is slidably connected to the motion support 400 along the second direction YY', and is used to drive the second end 420 of the motion support 400 to swing around the first end 410 along an arcuate trajectory.

[0052] Wherein, the first direction XX' can be the length direction of the infant cradle 20, the second direction YY' can be the width direction of the infant cradle 20, and the vertical direction ZZ' can be the height direction of the infant cradle 20. The second drive mechanism 300 is used to drive the second end 420 of the motion support 400 to swing up and down around the first end 410 along an arc-shaped trajectory. Alternatively, the second drive mechanism 300 can also be used to drive the second end 420 of the motion support 400 to swing around the first end 410 in a direction inclined to the vertical direction ZZ'.

[0053] In this embodiment, the first end 410 of the motion support 400 is movably mounted on the base shell 100 along the second direction YY', and the second end 420 is slidably connected to the output shaft of the second drive mechanism 300 along the second direction YY'. That is, the motion support 400 can move relative to the base shell 100 along the second direction YY'. The first drive mechanism 200 is mounted on the base shell 100 and is used to drive the motion support 400 to move the cradle 20 on it along the first direction XX'. The second drive mechanism 300 is mounted on the base shell 100 and is drively connected to the second end 420. It is used to drive the second end 420 to swing up and down around the axis of the first end 410, thereby causing the cradle 20 located on the support to swing up and down. The first drive mechanism 200 and the second drive mechanism 300 can drive the motion support 400 to move independently, or they can drive the motion support 400 to move simultaneously. When the first drive mechanism 200 and the second drive mechanism 300 are driven simultaneously, the movement speed of the first drive mechanism 200 and the movement speed of the second drive mechanism 300 are adjusted respectively to make the two movement modes couple with each other, thereby superimposing a variety of movement forms, such as producing a swinging pattern with trajectories like "u", "o", and "w".

[0054] The first drive mechanism 200 and the second drive mechanism 300 are both fixed to the base shell 100, which concentrates the overall center of gravity of the entire base 10 on the base shell 100, reducing the risk of swaying or tipping due to center of gravity shift during movement, making it especially suitable for use with infants and young children. At the same time, the first drive mechanism 200 and the second drive mechanism 300 are rigidly connected to the base shell 100, avoiding additional vibrations generated by the movement of the motion support 400, reducing noise, and making the rocking of the cradle 20 more stable, so as not to frighten the infants and young children.

[0055] Combination Figure 6 In some embodiments, the bottom shell 100 is provided with a track 110 extending along the second direction YY', and the first end 410 of the motion bracket 400 is provided with a roller 430, which is tumblingly connected to the track 110 along the second direction YY'.

[0056] In this embodiment, the rolling engagement between the roller 430 and the track 110 replaces the traditional sliding connection, converting sliding friction into rolling friction and significantly reducing motion resistance. This not only makes the movement of the motion bracket 400 along the second direction YY' smoother and reduces the risk of mechanical jamming, but also reduces the wear rate of components and extends the service life of the base 10. At the same time, the rolling engagement structure between the roller 430 and the track 110 is less expensive and easier to install than the sliding engagement structure.

[0057] In some embodiments, an annular groove 431 is formed on the outer periphery of the roller 430, and the track 110 is embedded in the annular groove 431; the bottom shell 100 includes a cover 120, which is disposed on the side of the roller 430 away from the track 110. The cover 120 and the roller 430 are spaced apart, and the minimum distance between them is less than the depth of the track 110 embedded in the roller 430.

[0058] In this embodiment, the track 110 is embedded in the annular groove 431 to guide the rolling of the roller 430, ensuring that the roller 430 always moves along the extension direction of the track 110. In use, the track 110 is located at the bottom of the roller 430, and the pressure cap 120 is disposed on the top of the roller 430. The pressure cap 120 and the roller 430 are spaced apart, which serves to prevent the roller 430 from rubbing against the pressure cap 120 when rolling, and also allows the roller 430 at the first end 410 to have a certain amount of room for movement in the vertical direction ZZ' when the second end 420 swings up and down around the first end 410. The minimum distance between the pressure cap 120 and the roller 430 is less than the depth to which the track 110 is embedded in the roller 430, so that the pressure cap 120 and the track 110 limit the roller 430 in the vertical direction ZZ', preventing the roller 430 from completely dislodging from the groove when the second end 420 of the motion bracket 400 swings up and down with the second drive mechanism 300, thus ensuring the reliability of the connection structure.

[0059] The minimum distance between the pressure cap 120 and the roller 430 can be the distance between the upper end of the roller 430 and the lower end of the pressure cap 120.

[0060] Alternatively, the track 110 can form a limiting groove 461, with at least a portion of the roller 430 located within the limiting groove 461, so that the roller 430 can move along the second direction YY' under the guidance of the track 110.

[0061] In some other embodiments, a rotating shaft extending along the second direction YY' may be provided at the first end 410 of the bottom shell 100, and the first end 410 of the motion bracket 400 may be slidably connected to the rotating shaft via a slider. At the same time, when the second drive mechanism 300 drives the second end 420 of the motion bracket 400 to rotate around the first end 410, the slider may rotate relative to the rotating shaft.

[0062] In some embodiments, combined with Figure 4 The motion support 400 includes a first swing arm 440 and a second swing arm 450. One end of the first swing arm 440 is movably mounted on the bottom shell 100 along the second direction YY'. The other end of the first swing arm 440 is rotatably connected to the second swing arm 450 about the axis along the second direction YY'. The second swing arm 450 is slidably connected to the second drive mechanism 300.

[0063] In this embodiment, the first end 410 of the first swing arm 440 is provided with a roller 430, that is, the first end 410 of the first swing arm 440 is rotatably connected to the guide rail on the bottom shell 100 through the roller 430. The second end 420 of the first swing arm 440 is rotatably connected to the second swing arm 450. When the second drive mechanism 300 is not driven, the second swing arm 450 is set along the vertical direction ZZ', the second end 420 of the first swing arm 440 is rotatably connected to the upper end of the second swing arm 450, and the lower end of the second swing arm 450 is slidably connected to the second drive mechanism 300. At this time, when the first drive mechanism 200 is driven, the first swing arm 440 can move along the second direction YY', thereby driving the cradle 20 to move along the second direction YY' through the first swing arm 440.

[0064] Furthermore, in combination Figure 5 The second drive mechanism 300 includes a second eccentric shaft 340, which extends along a second direction YY'. The second swing arm 450 is rotatably connected to the second eccentric shaft 340 and slidably connected to the second eccentric shaft 340 along the second direction YY'.

[0065] In this embodiment, the second driving mechanism 300 includes a second eccentric shaft 340 extending along a second direction YY'. When the second driving mechanism 300 drives the second eccentric shaft 340 to rotate, the second eccentric shaft 340 will cause the second swing arm 450 to swing, which in turn causes the second end 420 of the first swing arm 440 to swing up and down around the first end 410. Furthermore, when the first driving mechanism 200 drives the first swing arm 440 to move along the second direction YY', the first swing arm 440 will cause the second swing arm 450 to move along the second direction YY'. Furthermore, the second eccentric shaft 340 generates regular eccentric motion during rotation. When this motion is transmitted to the second swing arm 450 and drives the first swing arm 440 to swing up and down, it can significantly enhance the swing amplitude and smoothness of the cradle 20, simulating a more natural swing trajectory. At the same time, in conjunction with the first drive mechanism 200 driving the swing arm to translate along the second direction YY', the cradle 20 can superimpose translational motion on the basis of swing, further enriching the swing mode.

[0066] Specifically, the second drive mechanism 300 further includes a second motor 310 and a second worm gear assembly 320. The second motor 310 is connected to the worm gear in the second worm gear assembly 320 via a transmission. The axial direction of the worm gear in the second worm gear assembly 320 is a second direction YY'. A second eccentric shaft 340 is respectively provided at both ends of the worm gear along the axial direction, and the two second eccentric shafts 340 are symmetrical about the worm gear. Each second eccentric shaft 340 is rotatably connected to a corresponding first swing arm 440 via a second swing arm 450. That is, the second drive mechanism 300 has a second eccentric shaft 340 at both ends along the second direction YY', and the second swing arms 450 are arranged in a one-to-one correspondence with the second eccentric shafts 340, and the first swing arms 440 are arranged in a one-to-one correspondence with the second swing arms 450.

[0067] It should be noted that a second reduction gear assembly 330 is also provided between the second motor 310 and the second worm gear assembly 320. The second reduction gear assembly 330 includes a second pinion 332 and a second large gear 331 driven by a synchronous belt. The second pinion 332 is coaxially connected to the output shaft of the second motor 310, and the second large gear 331 is coaxially connected to the worm of the second worm gear assembly 320. The second pinion 332 is located below the second large gear 331, and the second motor 310 is fixed to the base shell 100.

[0068] Furthermore, combining Figure 4 The first drive mechanism 200 is located between the two first swing arms 440, so that the entire base 10 is symmetrically arranged along the second direction YY'. The symmetrical arrangement ensures the structural balance and stability during movement, and makes the movements of the two first swing arms 440 synchronized and coordinated to meet the requirements of complex motion trajectories. Moreover, the compact layout design effectively optimizes space utilization and enhances the practicality and reliability of the mechanical structure as a whole.

[0069] In some embodiments, combined with Figure 6 and Figure 7 The motion support 400 includes a connecting seat 460, which is fixedly connected to the first swing arm 440; the first drive mechanism 200 includes a first eccentric shaft 210 extending along the first direction XX', and a limiting groove 461 extending along the vertical direction ZZ' is provided on the connecting seat 460, and the first eccentric shaft 210 and the limiting groove 461 are slidably connected along the vertical direction ZZ'.

[0070] In this embodiment, when the first drive mechanism 200 drives the first eccentric shaft 210 to rotate, the first eccentric shaft 210 moves up and down within the limiting groove 461. Simultaneously, the limiting groove 461 drives the connecting seat 460 to move along the second direction YY', thereby causing the second first swing arm 440 to move along the second direction YY', thus enabling the entire motion support 400 to move along the second direction YY'. At the same time, the first swing arm 440 transmits the up and down movement of the second drive mechanism 300 to the connecting seat 460, so that the cradle 20 connected to the connecting seat 460 can integrate two movements.

[0071] When the first drive mechanism 200 drives the first eccentric shaft 210 to rotate, its eccentricity will generate a periodic offset force. Under the constraint of the limiting groove 461, this force is transformed into a regular movement in the horizontal direction, making the rocking trajectory richer and more three-dimensional. At the same time, combined with the regular movement in the vertical direction ZZ' provided by the second drive mechanism 300, the rocking action of the cradle 20 is finally closer to the rhythm of natural rocking, effectively enhancing the comfort and simulation of rocking.

[0072] Furthermore, the first drive mechanism 200 includes a first worm gear assembly 230 and a first motor 240. The first motor 240 is connected to the worm gear in the first worm gear assembly 230 via a transmission. The axial direction of the worm gear in the first worm gear assembly 230 is a first direction XX'. The worm gear in the first worm gear assembly 230 is coaxially arranged with the first eccentric shaft 210. The end of the first eccentric shaft 210 away from the worm gear extends into the limiting groove 461.

[0073] Specifically, a first reduction gear assembly 220 is also provided between the first worm gear assembly 230 and the first motor 240. The first reduction gear assembly 220 includes a first pinion 222 and a first gear 221 driven by a synchronous belt. The first pinion 222 is coaxially connected to the output shaft of the first motor 240, and the first gear 221 is coaxially connected to the worm of the first worm gear assembly 230. The first worm gear assembly 230 and the pinion are on the same horizontal plane, and the worm of the first worm gear assembly 230 is arranged in the vertical direction ZZ'. The first motor 240 is fixed on the base shell 100.

[0074] Furthermore, in combination Figure 4 The connecting seat 460 is located on the side of the first drive mechanism 200 away from the second drive mechanism 300. This means that the first drive mechanism 200, being away from the second drive mechanism 300, drives the first end 410 and the second end 420 of the motion bracket 400 respectively. The first drive mechanism 200 and the second drive mechanism 300 are compactly arranged on the housing.

[0075] In some embodiments, the base 10 includes an elastic member 470, one end of which abuts against the base shell 100 and the other end of which abuts against the motion bracket 400. The elastic member 470 is located between the first drive mechanism 200 and the second drive mechanism 300.

[0076] In this embodiment, the elastic force of the elastic element 470 is used to move the motion bracket 400 away from the bottom shell 100, which helps to distribute the load-bearing capacity of the second drive mechanism 300 and extend the service life of the second drive mechanism 300. Furthermore, the elastic element 470 adapts to the displacement of the motion bracket 400, forming a reverse buffer force through its own elasticity, making the rocking motion of the cradle 20 smoother and avoiding the jamming sensation caused by rigid connections.

[0077] Specifically, the base 10 includes a crossbeam 471, with both ends of the crossbeam 471 along the second direction YY' connected to two first swing arms 440 respectively. One end of the elastic member 470 abuts against the bottom shell 100, and the other end abuts against the crossbeam 471.

[0078] In some embodiments, combined with Figure 3 and Figure 6 A control module 500 is provided on the bottom shell 100, and a speed sensor 510 is provided on the first drive mechanism 200 and the second drive mechanism 300 respectively. The control module 500 is used to adjust the speed of the first drive mechanism 200 and the second drive mechanism 300 according to the real-time speed detected by the speed sensor 510.

[0079] In this embodiment, combined with Figure 6 The speed sensor 510 includes a grating and a detection head. The grating on the first drive mechanism 200 is located at the end away from the worm gear from the first large gear 221, and the grating on the second drive mechanism 300 is located at the end of the worm gear in the second worm gear assembly 320 away from the second large gear 331. Each grating is equipped with a detection head, which is electrically connected to the control module 500. The speed sensor 510 monitors the rotational speed of the corresponding worm gear and transmits it to the control module 500. The control module 500 adjusts the rotational speeds of the first drive mechanism 200 and the second drive mechanism 300 based on the real-time speed detected by the speed sensor 510, so as to fit the rotational speeds of the first drive mechanism 200 and the second drive mechanism 300 to the cradle 20 to produce a rocking pattern similar to "u", "o", and "w" trajectories. A display screen 130 is also provided on the base 10, and the display screen 130 is electrically connected to the control module 500.

[0080] Combination Figure 1 and Figure 2An embodiment of this application also discloses an infant comfort cradle, including a cradle 20 and a base 10 of the infant comfort cradle 20, with the cradle 20 positioned above the motion support 400.

[0081] In some embodiments, combined with Figure 8 and Figure 9 The motion support 400 includes a clamping structure 480, which includes a plurality of elastic grippers 481 spaced apart along a circumference; the bottom of the cradle 20 is provided with a vertically extending insertion part 21 with a snap-fit ​​groove 22 on the outer wall, and the end of the insertion part 21 away from the cradle 20 gradually tapers in a vertically downward direction; the elastic grippers 481 are clamped in the snap-fit ​​groove 22.

[0082] In this embodiment, when installing the cradle 20, the insertion part 21 at the bottom of the cradle 20 is inserted vertically into the base 10 along the ZZ' direction. Since the end of the insertion part 21 has a tapered structure 27 that gradually narrows, the tapered structure 27 can be gradually inserted between the multiple elastic claws 481 to push the multiple elastic claws 481 outward until the locking groove 22 moves to the position of the elastic claws 481. The elastic claws 481 will then be clamped in the limiting groove 461, so that the cradle 20 is connected to the base 10. The clamping structure 480 is provided on the connecting seat 460.

[0083] Combination Figure 1 and Figure 2 In some embodiments, the infant comfort cradle 20 includes a mounting frame 23, a connector 24, and at least two support arms 25. The connector 24 is fixed above the base 10. One end of each support arm 25 is connected to the connector 24, and the other end is connected to the mounting frame 23. The mounting frame 23 is connected end to end to form a closed structure.

[0084] Specifically, there are two support arms 25, which are connected on opposite sides of the enclosed structure to maintain the balance of the cradle 20. The mounting bracket 23 has an approximately rectangular enclosed structure, with long and short sides, and the two support arms 25 are connected to the middle of the two long sides respectively. Alternatively, the two support arms 25 can be connected to the middle of the two short sides respectively. The insertion part 21 is installed at the bottom of the connector 24.

[0085] The mounting bracket 23 is connected to a cantilever 26, which is located at the top of the mounting bracket 23 for hanging baby toys.

[0086] In some embodiments, the infant cradle 20 further includes a chassis 600, which includes two opposing arcuate arms 610. The two arcuate arms 610 form an enclosing cavity 620, within which a base 10 is located, and one end of the base 10 near the second drive mechanism 300 is connected to both arcuate arms 610.

[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A base for an infant soothing cradle, characterized in that, The base includes: Bottom shell; The motion support has a first end and a second end along a first direction, the first end being movably disposed on the bottom shell along the second direction; A first drive mechanism is fixed on the bottom shell. The output end of the first drive mechanism is connected to the motion bracket for driving the motion bracket to move along the second direction. The second drive mechanism is fixed on the bottom shell. The output end of the second drive mechanism is slidably connected to the motion bracket along the second direction and is used to drive the second end of the motion bracket to swing around the first end along an arc trajectory.

2. The base of the infant comfort cradle according to claim 1, characterized in that, The bottom shell is provided with a track extending in a second direction, and the first end of the motion bracket is provided with a roller, which is rolledly connected to the track in the second direction.

3. The base of the infant comfort cradle according to claim 2, characterized in that, The outer periphery of the roller is provided with an annular groove, and the track is embedded in the annular groove; The bottom shell includes a pressure cover, which is disposed on the side of the roller away from the track. The pressure cover and the roller are spaced apart, and the minimum distance between them is less than the depth to which the track is embedded in the roller.

4. The base of the infant comfort cradle according to claim 3, characterized in that, The motion support includes a first swing arm and a second swing arm. One end of the first swing arm is movably mounted on the bottom shell along a second direction. The other end of the first swing arm is rotatably connected to the second swing arm. The second swing arm is slidably connected to the second drive mechanism.

5. The base of the infant comfort cradle according to claim 4, characterized in that, The second drive mechanism includes a second eccentric shaft extending along a second direction, and the second swing arm is rotatably connected to the second eccentric shaft and slidably connected to the second eccentric shaft along the second direction.

6. The base of the infant comfort cradle according to claim 5, characterized in that, The second drive mechanism is provided with the second eccentric shaft at both ends along the second direction, the second swing arm is provided in a one-to-one correspondence with the second eccentric shaft, and the first swing arm is provided in a one-to-one correspondence with the second swing arm.

7. The base of the infant comfort cradle according to claim 6, characterized in that, The first drive mechanism is located between the two first swing arms.

8. The base of the infant comfort cradle according to claim 1, characterized in that, The motion support includes a connecting seat, which is fixedly connected to the first swing arm; The first driving mechanism includes a first eccentric shaft extending along a first direction, and a limiting groove extending along a vertical direction is provided on the motion bracket. The first eccentric shaft and the limiting groove are slidably connected along the vertical direction.

9. The base of the infant comfort cradle according to claim 8, characterized in that, The connecting seat is located on the side of the first drive mechanism away from the second drive mechanism, and the connecting seat is used to connect to the cradle.

10. The base of the infant comfort cradle according to claim 1, characterized in that, The base includes an elastic element, one end of which abuts against the bottom shell and the other end of which abuts against the motion bracket. The elastic element is located between the first drive mechanism and the second drive mechanism.

11. The base of the infant cradle according to claim 1, characterized in that, A control module is provided on the bottom shell, and speed sensors are respectively provided on the first drive mechanism and the second drive mechanism. The control module is used to adjust the speed of the first drive mechanism and the second drive mechanism according to the real-time speed detected by the speed sensors.

12. A baby soothing cradle, characterized in that, The cradle includes a base for the infant comfort cradle as described in any one of claims 1-11, the cradle being positioned above the motion support.

13. The infant comfort cradle according to claim 12, characterized in that, The motion support includes a clamping structure, which includes a plurality of elastic grippers spaced apart along a circumference. The bottom of the cradle is provided with a vertically extending insertion part, and a snap-fit ​​groove is provided on the outer wall of the insertion part. The end of the insertion part away from the cradle gradually tapers in a vertically downward direction. The elastic gripper is held in the snap-fit ​​groove.

14. The infant comfort cradle according to claim 12, characterized in that, The cradle includes a mounting frame, a connector, and at least two support arms. The connector is fixed above the base. One end of each support arm is connected to the connector, and the other end is connected to the mounting frame. The mounting frame is connected end to end to form a closed structure.

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