An infant rocking device

Abstract

The utility model discloses a baby rocking device, include: support base, seat main body, drive mechanism, connecting mechanism, wherein, connecting mechanism sets up between seat main body and support base for limiting the movement track of seat main body, drive mechanism sets up on support base, seat main body is configured to be driven and does the circular motion on vertical plane or inclined plane relative to support base by drive mechanism. The baby rocking device provided by the utility model has the advantages of large movement track, simple structure, low production cost, better entertainment and experience.

Description

Technical Field

[0001] This utility model relates to the field of children's products technology, and in particular to a baby rocking device. Background Technology

[0002] For many years, parents have frequently used baby care equipment such as baby cradles or rocking chairs to keep, soothe, and entertain their babies. Existing baby care equipment generally has a reciprocating swing structure, that is, the seat is driven to swing left and right or back and forth repeatedly by the swing arm. Due to the influence of the swing arm, although its horizontal range of movement is sufficient, it can only move slightly up and down relative to the ground, and the height adjustment is extremely limited. Moreover, it is easy to feel a jerky feeling at the extreme positions of left and right or back and forth, resulting in a poor user experience and poor entertainment.

[0003] Existing technologies also include some multi-drive infant care devices capable of horizontal and vertical movement along large trajectories. For example, Chinese patent CN200980138791.1 discloses an infant care device that combines horizontal and vertical reciprocating motion components. Specifically, it employs two sets of motors and two sets of crank transmission mechanisms, and coordinates horizontal and vertical movement through a controller to obtain multiple visually unique movement trajectories. However, it is also prone to jerking at the extreme positions of movement in different directions, and its structure is extremely complex, consumes a lot of materials, and has high production and maintenance costs.

[0004] For example, Chinese patent CN201310086301.6 discloses an infant swing device. The drive mechanism uses double swing arms to drive the seat support to swing repeatedly left and right. It can also drive the housing through a lifting mechanism to move the drive mechanism and seat support up and down, thus exhibiting a multi-drive structure. The drive mechanism operates at an adjustable frequency, and the swing motion driven by it can be combined with the vertical movement of the housing to generate multiple programmable motion modes in the vertical plane, such as a "rainbow" motion mode, a horizontal or tilting sliding mode, a "circular" motion mode, and a "bouncing" motion mode. However, it is prone to jerking at the extreme points of movement in different directions, and its structure is extremely complex, consuming a lot of materials and resulting in high production and maintenance costs. Furthermore, the frequency of its swing motion is directly affected by the length of the swing arms. Achieving a comfortable swing frequency requires a longer swing arm, which would make the overall height of the infant swing device relatively high, hindering unpacking, packaging, and transportation, and also affecting its aesthetics. Utility Model Content

[0005] In order to overcome at least one of the defects of the prior art, the present invention provides a baby rocking device with a large movement trajectory, simple structure, low production cost, and better entertainment and experience.

[0006] The technical solution adopted by this utility model to solve its problem is:

[0007] A baby rocking device includes: a support base, a seat body, a drive mechanism, and a connecting mechanism, wherein,

[0008] A connecting mechanism is disposed between the seat body and the support base to limit the movement trajectory of the seat body. A drive mechanism is disposed on the support base. The seat body is configured to be driven by the drive mechanism to perform circular motion relative to the support base in a vertical or inclined plane.

[0009] In the above solution, the connecting mechanism is set between the seat body and the support base. The connecting mechanism restricts the movement trajectory of the seat body. Under the driving action of the drive mechanism, the seat body can make circular motion relative to the support base in a vertical or inclined plane. Compared with the existing repetitive swinging structure, the seat body of this baby rocking device has a larger lifting height and better entertainment. Compared with the existing multi-drive structure, its structure is simpler, consumes less material, and has lower production and maintenance costs. On the other hand, by utilizing the characteristic of synchronous circular motion, the speed of the seat body's lateral movement and lifting movement alternates between fast and slow, and there is no sense of jerking. The movement is smooth, thus achieving a riding experience that cannot be achieved in the existing technology.

[0010] Furthermore, the connecting mechanism includes a first link and a second link, which are pivotally connected between the seat body and the support base, respectively, thereby restricting the movement trajectory of the seat body.

[0011] Furthermore, the distance between the two pivot axes of the first link is equal to the distance between the two pivot axes of the second link, and the distance between the pivot axis between the first link and the seat body and the pivot axis between the second link and the seat body is equal to the distance between the pivot axis between the first link and the support base and the pivot axis between the second link and the support base, so as to ensure that the seat body maintains its seating orientation angle unchanged during the circular motion.

[0012] Furthermore, the seat body includes a mounting base and a seat frame connected together, the mounting base supporting the seat frame, and the first link and the second link being pivotally connected to the mounting base respectively.

[0013] Furthermore, the connecting mechanism has two sets arranged opposite each other on the two outer sides of the mounting base. The support base has multiple first connecting columns, arranged in two groups opposite each other. Two first connecting rods and two second connecting rods are respectively pivotally connected to the inner sides of different first connecting columns. When the drive mechanism drives the seat body to perform circular motion, the mounting base can move within the accommodating space enclosed by the multiple first connecting columns. This avoids interference between structures, improves stability during movement, prevents downward torsion under unilateral force, and fully utilizes the space between the first connecting columns, thus reducing the overall height of the product and achieving a better overall effect.

[0014] Furthermore, the height of the mounting base is greater than the distance between the two pivot axes of the first link; and / or, the height of the mounting base is greater than the distance between the two pivot axes of the second link.

[0015] Furthermore, the seat frame is detachably connected to the top of the mounting base for easy unpacking and transportation.

[0016] Furthermore, it also includes a transmission mechanism, which comprises an eccentric rotating part and a connecting part. The eccentric rotating part is rotatably arranged relative to the supporting base about a first pivot axis. A drive mechanism drives the eccentric rotating part to rotate. The connecting part is connected to the seat body or the connecting mechanism, and the connecting part is pivotally connected to the eccentric rotating part about a second pivot axis. The distance between the first pivot axis and the second pivot axis is equal to the distance between the two pivot axes of the first link and also equal to the distance between the two pivot axes of the second link. In this way, the drive mechanism only needs to continuously output power to the eccentric rotating part in one direction, that is, the performance requirements of its motor are not high, and an ordinary motor can be used directly. There is no need to use an expensive programmable control chip, resulting in a lower overall cost.

[0017] Furthermore, the connecting part includes a third link and a fourth link, which are arranged at an angle. The first end of the third link and the first end of the fourth link are both pivotally connected to the eccentric rotating part around the second pivot axis. The second end of the third link is connected to the seat body or the first link, and the second end of the fourth link is connected to the seat body or the second link, thereby strengthening the overall support strength of the connecting part.

[0018] Furthermore, the second end of the third link and the first link of the connecting mechanism are pivotally connected to the seat body around the third pivot axis, and the second end of the fourth link and the second link of the connecting mechanism are pivotally connected to the seat body around the fourth pivot axis. This simplifies the installation structure of each link, saves some pivots, and facilitates the transmission of driving force, making its movement smoother.

[0019] Furthermore, the drive mechanism includes a motor, a worm gear, and a worm wheel. The motor is connected to the worm gear via a transmission, and the worm wheel cooperates with the worm gear. The eccentric rotating part includes a rotating rod, the first end of which is fixedly connected to the rotating shaft of the worm wheel, and the second end of which is pivotally connected to the connecting part.

[0020] Furthermore, the transmission mechanism is provided with two sets of gears arranged opposite each other on the two opposite sides of the worm wheel, and the first ends of the two rotating rods are respectively fixedly connected to the two ends of the worm wheel shaft.

[0021] Furthermore, the drive mechanism also includes a first pulley, a second pulley, and a belt. The first pulley is mounted on the output shaft of the motor, the second pulley is mounted on the rotating shaft of the worm gear, and the belt is wound around the first pulley and the second pulley. The diameter of the first pulley is smaller than the diameter of the second pulley.

[0022] Furthermore, the drive mechanism includes a first drive mechanism and a second drive mechanism, the first link is configured to be driven by the first drive mechanism to perform a circular motion relative to the support base, and the second link is configured to be driven by the second drive mechanism to perform a circular motion relative to the support base.

[0023] Furthermore, it also includes a transmission mechanism, which includes a first transmission component and a second transmission component. A drive mechanism drives the first transmission component and the second transmission component to move. The first transmission component is connected to the first link and drives the first link to perform circular motion. The second transmission component is connected to the second link and drives the second link to perform circular motion.

[0024] Furthermore, the connecting mechanism is provided with a set of first and second connecting rods arranged diagonally opposite each other on two opposite sides of the mounting base.

[0025] Furthermore, there is one worm gear and two sets of transmission mechanisms arranged opposite each other on opposite sides of the worm gear. The rotating rods of the two transmission mechanisms are respectively fixedly connected to both ends of the worm gear shaft.

[0026] Furthermore, there are two worm gears, which are arranged at intervals along the axis of the worm. There are two sets of transmission mechanisms arranged opposite each other on opposite sides of the two worm gears. The rotating rods of different transmission mechanisms are fixedly connected to the rotating shafts of different worm gears.

[0027] Furthermore, there are two worm gears, which are arranged at intervals along the axis of the worm. The transmission mechanism is provided in four sets, which are arranged in pairs. The first end of the rotating rod of each pair of transmission mechanisms is fixedly connected to the two ends of the rotating shaft of the corresponding worm gear.

[0028] Furthermore, the connecting part includes a third link, the first end of the third link is pivotally connected to the second end of the rotating rod, and the second end of the third link and the first link of the connecting mechanism are pivotally connected to the seat body around a third pivot axis, or the second end of the third link and the second link of the connecting mechanism are pivotally connected to the seat body around a fourth pivot axis.

[0029] Furthermore, the drive mechanism includes a motor, a worm gear, and a worm wheel. The motor is connected to the worm gear via a transmission, and the worm wheel cooperates with the worm gear. It also includes a rotating rod, the first end of which is fixedly connected to the rotating shaft of the worm wheel, and the second end of which is pivotally connected to the seat body.

[0030] Furthermore, the seat body includes a connected ornament, a mounting base, and a seat frame. The ornament supports the mounting base, and the mounting base supports the seat frame. The ornament includes a first part and a second part. The second part is connected to the first part and is used to connect with the mounting base. The first link, the second link, and the rotating rod are all pivotally connected to the first part.

[0031] Furthermore, the first part includes at least a first segment, a second segment, and a third segment, which are integrally formed and located on the same plane. The first connecting rod is pivotally connected to the first segment or to the connection between the first and third segments. The second connecting rod is pivotally connected to the third segment or to the connection between the second and third segments. The rotating rod is pivotally connected to the second segment or to the connection between the first and second segments.

[0032] Furthermore, there is one worm gear, two rotating rods, two swing pieces, and two sets of connecting mechanisms. The two rotating rods are respectively fixedly connected to both ends of the worm gear's shaft, and one rotating rod, one swing piece, and one set of connecting mechanisms are arranged in a one-to-one correspondence.

[0033] Furthermore, it also includes an auxiliary spring for providing upward assist force, with one end of the auxiliary spring connected to the swing element and the other end connected to the support base.

[0034] Furthermore, the support base is provided with at least two fifth connecting columns, and at least two auxiliary springs are provided. The two auxiliary springs are arranged opposite each other in an inverted V shape. One end of each of the two auxiliary springs is connected to the ornament, and the other end of each of the two auxiliary springs is connected to different fifth connecting columns.

[0035] Furthermore, the drive mechanism includes a motor, a worm gear, and two worm wheels. The motor is connected to the worm gear via a transmission. The two worm wheels are arranged at intervals along the axial direction of the worm gear and respectively cooperate with the worm gear. The first end of the first link is fixedly connected to the rotating shaft of one of the worm wheels, and the second end of the first link is pivotally connected to the seat body. The first end of the second link is fixedly connected to the rotating shaft of the other worm wheel, and the second end of the second link is pivotally connected to the seat body.

[0036] Furthermore, the seat body includes a mounting base and a seat frame connected together. The mounting base supports the seat frame. The mounting base includes two connecting frames. There are two sets of connecting mechanisms. One connecting frame and one set of connecting mechanisms are arranged in a one-to-one correspondence. The first ends of the two first connecting rods are respectively fixedly connected to the two ends of the shaft of one of the worm gears. The second ends of the two first connecting rods are respectively pivotally connected to different connecting frames. The first ends of the two second connecting rods are respectively fixedly connected to the two ends of the shaft of the other worm gear. The second ends of the two second connecting rods are respectively pivotally connected to different connecting frames. Attached Figure Description

[0037] Figure 1 This is one of the structural schematic diagrams of the baby rocking device according to Embodiment 1 of this utility model;

[0038] Figure 2 for Figure 1 The enlarged view of part A shown below;

[0039] Figure 3 This is a second schematic diagram of the structure of the baby rocking device according to Embodiment 1 of this utility model;

[0040] Figure 4 for Figure 3 The enlarged view of part B shown;

[0041] Figure 5 This is a schematic diagram of the baby rocking device in Embodiment 1 of this utility model in its circular motion to the far right.

[0042] Figure 6 This is a schematic diagram of the baby rocking device in Embodiment 1 of this utility model at its lowest point during circular motion;

[0043] Figure 7 This is a schematic diagram of the baby rocking device in Embodiment 1 of this utility model in its circular motion to the leftmost position;

[0044] Figure 8 This is a schematic diagram of the baby rocking device according to Embodiment 2 of this utility model;

[0045] Figure 9 for Figure 8 The enlarged view of part C shown;

[0046] Figure 10 This is an explosion diagram of the baby shaking device according to Embodiment 2 of this utility model;

[0047] Figure 11 This is a schematic diagram of the baby rocking device according to Embodiment 3 of this utility model;

[0048] Figure 12 for Figure 11 The enlarged view of part D shown;

[0049] Figure 13 This is an explosion diagram of the baby shaking device according to Embodiment 3 of this utility model;

[0050] Figure 14 This is a schematic diagram of the baby rocking device according to Embodiment 4 of this utility model;

[0051] Figure 15 for Figure 14 The enlarged view of part E shown;

[0052] Figure 16 This is an explosion diagram of the baby shaking device according to Embodiment 4 of this utility model;

[0053] Figure 17 This is a schematic diagram of the baby rocking device according to Embodiment 5 of this utility model;

[0054] Figure 18 for Figure 17 The enlarged view of part F shown;

[0055] Figure 19 This is a partial explosion diagram of the baby shaking device in Embodiment 5 of this utility model;

[0056] Figure 20 An exploded view of part of the structure of the baby rocking device of Embodiment 5 of this utility model after the seat body has been removed;

[0057] Figure 21 This is a schematic diagram of the structure of the ornament in Embodiment 5 of this utility model;

[0058] Figure 22 This is a schematic diagram of the baby rocking device according to Embodiment 6 of this utility model;

[0059] Figure 23 for Figure 22 The enlarged view of part G shown;

[0060] Figure 24 This is an explosion diagram of the baby shaking device according to Embodiment 6 of this utility model.

[0061] The meanings of the reference numerals in the attached figures are as follows:

[0062] 1. Support base; 11. First connecting column; 12. Second connecting column; 13. Third connecting column; 14. Crossbar; 15. Fourth connecting column; 16. Fifth connecting column; 17. Lower mounting box; 18. Upper mounting box; 2. Seat body; 21. Mounting base; 211. Connecting frame; 22. Seat frame; 23. Ornament; 231. First part; 2311. First section; 2312. Second section; 2313. Third section; 232. Second part; 3. Drive mechanism; 31. Motor; 32. Worm gear 33. Rod; 34. Worm gear; 35. First pulley; 36. Second pulley; 37. Belt; 4. Connecting mechanism; 41. First connecting rod; 42. Second connecting rod; 5. Transmission mechanism; 51. Eccentric rotating part; 511. Rotating rod; 52. Connecting part; 521. Third connecting rod; 522. Fourth connecting rod; 6. Auxiliary spring; 100. First pivot axis; 200. Second pivot axis; 300. Third pivot axis; 400. Fourth pivot axis; 500. Fifth pivot axis; 600. Sixth pivot axis. Detailed Implementation

[0063] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0064] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0066] Example 1

[0067] See Figures 1 to 4This utility model discloses an infant rocking device, comprising: a support base 1, a seat body 2, a drive mechanism 3, a connecting mechanism 4, and a transmission mechanism 5. The support base 1 serves as a supporting body and can be supported on the ground. The connecting mechanism 4 is disposed between the seat body 2 and the support base 1. The seat body 2 serves to support the infant, and the main function of the connecting mechanism 4 is to limit the movement trajectory of the seat body 2 relative to the support base 1. When necessary, the connecting mechanism 4 can also provide some support for the seat body 2. The drive mechanism 3 is disposed on the support base 1. Specifically, the seat body 2 is configured to be driven by the drive mechanism 3 to perform circular motion relative to the support base 1 in a vertical or inclined plane. The drive mechanism 3 can output power to the seat body 2, at which time the seat body 2 drives the connecting mechanism 4 to move simultaneously; the drive mechanism 3 can also output power to the connecting mechanism 4, at which time the connecting mechanism 4 drives the seat body 2 to move simultaneously.

[0068] It needs to be explained, such as Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the circular motion in the vertical plane refers to the circular movement trajectory of the seat body 2, including simultaneous lifting and lateral movements. The seat body 2 is constrained and influenced by the connecting mechanism 4, and the circular motion of the seat body 2 corresponds to the circular motion of the connecting mechanism 4. (See reference...) Figure 1 and with Figure 1 The direction shown is for reference only. When the infant is seated on the main body 2, their face can be facing forward and upward or forward. Under the drive of the drive mechanism 3, the main body 2 moves vertically and horizontally simultaneously, driven or restricted by the circular motion of the connecting mechanism 4. That is, the plane (vertical plane) of the movement trajectory of the main body 2 is perpendicular to the facing direction. Of course, in other examples, based on different design or usage requirements, when the infant is seated on the main body 2 with their face facing forward and upward or forward, under the drive of the drive mechanism 3, the main body 2 moves vertically and forward and backward simultaneously, driven or restricted by the circular motion of the connecting mechanism 4. That is, the plane (vertical plane) of the movement trajectory of the main body 2 is changed to be parallel to the facing direction.

[0069] Of course, in other embodiments, the seat body 2 can also be configured to perform circular motion relative to the supporting base 1 on an inclined surface. In this case, the movement trajectory of the seat body 2 is also on the inclined surface, and the seat body 2 also includes simultaneous lateral movement and vertical movement. The plane on which the movement trajectory of the seat body 2 is located (the inclined surface) can also be perpendicular or parallel to the seating orientation plane. Preferably, the angle between the inclined surface and the horizontal plane is between 70° and 90°, and more preferably, the angle between the inclined surface and the horizontal plane is between 80° and 90°. For ease of understanding, the following will describe in detail the circular motion of the seat body 2 on a vertical plane.

[0070] It should be noted that the infant can also lie on the seat body 2. In this case, the infant's face can be facing upwards. The aforementioned sitting orientation is the face in which the infant's body faces when lying down.

[0071] Therefore, the aforementioned utility model restricts the movement trajectory of the seat body 2 relative to the supporting base 1 through the connecting mechanism 4. Under the driving action of the driving mechanism 3, the seat body 2 synchronously performs circular motion relative to the supporting base 1 on a vertical or inclined plane. Compared with the existing repetitive swinging structure, the seat body 2 of this baby rocking device has a larger lifting height and better entertainment value. Compared with the existing multi-drive structure, its structure is simpler, consumes less material, and has lower production and maintenance costs. On the other hand, by utilizing the characteristic of synchronous circular motion, the speed of the seat body 2 in lateral movement and lifting movement alternates between fast and slow, and there is no sense of jerking overall, resulting in smooth movement and a riding experience that cannot be achieved in the prior art. Thus, a baby rocking device with a large movement trajectory, simple structure, low cost, and better entertainment value and experience is obtained.

[0072] Combination Figure 1 and Figure 2 In this embodiment, the connecting mechanism 4 includes a first link 41 and a second link 42. The first link 41 and the second link 42 are pivotally connected between the seat body 2 and the support base 1, respectively. Thus, under the driving action of the driving mechanism 3, the rotation trajectory of the first link 41 and the second link 42 is used to limit the movement trajectory of the seat body 2.

[0073] Preferably, the distance between the two pivot axes of the first link 41 is equal to the distance between the two pivot axes of the second link 42, and the distance between the pivot axis between the first link 41 and the seat body 2 and the pivot axis between the second link 42 and the seat body 2 is equal to the distance between the pivot axis between the first link 41 and the support base 1 and the pivot axis between the second link 42 and the support base 1.

[0074] For ease of understanding, the pivot axis between the first link 41 and the seat body 2 is defined as the third pivot axis 300, the pivot axis between the second link 42 and the seat body 2 is defined as the fourth pivot axis 400, the pivot axis between the first link 41 and the support base 1 is defined as the fifth pivot axis 500, and the pivot axis between the second link 42 and the support base 1 is defined as the sixth pivot axis 600. In this case, the distance between the third pivot axis 300 and the fourth pivot axis 400 is equal to the distance between the fifth pivot axis 500 and the sixth pivot axis 600, and the distance between the third pivot axis 300 and the fifth pivot axis 500 is equal to the distance between the fourth pivot axis 400 and the sixth pivot axis 600. It can also be understood as follows: on the plane where the moving trajectory of the connecting mechanism 4 is located, the lines connecting the third pivot axis 300 and the fourth pivot axis 400, the lines connecting the fourth pivot axis 400 and the fifth pivot axis 500, the lines connecting the fifth pivot axis 500 and the sixth pivot axis 600, and the lines connecting the sixth pivot axis 600 and the third pivot axis 300 form a parallelogram.

[0075] Thus, under the driving action of the drive mechanism 3, the third pivot axis 300 rotates around the fifth pivot axis 500, and the fourth pivot axis 400 rotates around the sixth pivot axis 600. The movement trajectory of the third pivot axis 300 is the same as that of the fourth pivot axis 400, which in turn makes the movement trajectory of the seat body 2 the same as that of the third pivot axis 300 and the fourth pivot axis 400. That is, the movement trajectory of the seat body 2 is also circular, thereby keeping the seating orientation angle of the seat body 2 unchanged.

[0076] The baby rocking device may further include a transmission mechanism 5, which may be located between the drive mechanism 3 and the seat body 2, or between the drive mechanism 3 and the connecting mechanism 4. The transmission mechanism 5 includes an eccentric rotating part 51 and a connecting part 52. The eccentric rotating part 51 is rotatably arranged relative to the support base 1 about a first pivot axis 100. The connecting part 52 is connected to the seat body 2 or the connecting mechanism 4, and is pivotally connected to the eccentric rotating part 51 about a second pivot axis 200. The distance between the first pivot axis 100 and the second pivot axis 200 is equal to the distance between the two pivot axes of the first connecting rod 41, and also equal to the distance between the two pivot axes of the second connecting rod 42. In use, the drive mechanism 3 drives the eccentric rotating part 51 to rotate, and the eccentric rotating part 51 drives the connecting mechanism 4 and the seat body 2 to perform circular motion relative to the support base 1 through the connecting part 52.

[0077] In existing technologies, to reduce the jerking sensation, the performance of the motor in the drive mechanism is required to be high, necessitating the use of a servo motor. Controlling the servo motor's speed reduces the jerking sensation at the movement limits. Furthermore, a costly programmable controller chip is used to control the repetitive movements of the dual drive mechanism to achieve a "circular" motion pattern, which undoubtedly increases production costs significantly. In this invention, however, the drive mechanism 3 only needs to continuously output power in one direction, meaning the performance requirements for its motor are not high; a common motor can be used directly, and there is no need for a costly programmable controller chip, resulting in a lower overall cost.

[0078] See Figure 1 and Figure 3 In this embodiment, preferably, the drive mechanism 3 and the seat body 2 are connected by a transmission mechanism 5. When in use, the drive mechanism 3 drives the transmission mechanism 5 to move, and the transmission mechanism 5 drives the seat body 2 to make circular motion under the restriction of the connecting mechanism 4.

[0079] In other embodiments, the drive mechanism 3 may also be connected to the connecting mechanism 4 via a transmission mechanism 5. In use, the drive mechanism 3 drives the transmission mechanism 5 to move, the transmission mechanism 5 drives the connecting mechanism 4 to move, and the connecting mechanism 4 drives the seat body 2 to make a circular motion.

[0080] In this embodiment, the seat body 2 specifically includes a mounting base 21 and a seat frame 22 connected together, with the mounting base 21 supporting the seat frame 22. The first end of the first connecting rod 41 is pivotally connected to the mounting base 21 of the seat body 2, and the second end of the first connecting rod 41 is pivotally connected to the support base 1. Similarly, the first end of the second connecting rod 42 is pivotally connected to the mounting base 21 of the seat body 2, and the second end of the second connecting rod 42 is pivotally connected to the support base 1. Thus, the components are connected via the mounting base 21, allowing the force to be concentrated on the mounting base 21. Only the strength of the mounting base 21 needs to be specially reinforced for ease of manufacturing. Preferably, the seat frame 22 is detachably connected above the mounting base 21, so that the seat frame 22 can be removed during packaging for easy unpacking and transportation. In this case, the mounting base 21 can be integrated with the drive mechanism 3, the connecting mechanism 4, and the transmission mechanism 5 and mounted on the support base 1.

[0081] See Figure 2 and Figure 4In this embodiment, the connecting mechanism 4 is provided in two sets, which are arranged opposite to each other and respectively located on the two opposite outer sides of the mounting base 21 to improve the stability of the seat body 2 during movement and avoid downward twisting under unilateral force. The connecting mechanism 4 is provided in two sets, that is, there are two first connecting rods 41 and two second connecting rods 42. The support base 1 is provided with multiple first connecting columns 11, which are arranged in two groups opposite to each other. The two first connecting columns 11 in each group are pivotally connected to the first connecting rod 41 and the second connecting rod 42 in each group of the connecting mechanism 4. Preferably, the two first connecting rods 41 and the two second connecting rods 42 are pivotally connected to the inner side of different first connecting columns 11. In particular, when the driving mechanism 3 drives the seat body 2 to make a circular motion, the mounting base 21 can move within the accommodating space enclosed by the multiple first connecting columns 11.

[0082] Specifically, with Figure 2 With the indicated direction as a reference, the first link 41 and the second link 42 of the same group are arranged at intervals in the left-right direction. The first link 41 and the second link 42 of one group are pivotally connected to the front side of the mounting base 21, and the first link 41 and the second link 42 of the other group are pivotally connected to the rear side of the mounting base 21. The first connecting posts 11 of the same group are also arranged at intervals in the left-right direction. Under the driving action of the driving mechanism 3, the mounting base 21 can make circular motion around the pivot axis between the first link 41 and the first connecting post 11 and the pivot axis between the second link 42 and the first connecting post 11. Part of the movement trajectory of the mounting base 21 is located within the accommodating space enclosed by the multiple first connecting posts 11.

[0083] In this way, interference between structures is avoided, stability during movement is improved, and downward torsion due to unilateral force is prevented. At the same time, the space between the first connecting columns 11 is fully utilized, which helps to reduce the overall height of the product and achieve a better overall effect.

[0084] It should be noted that the number of first connecting posts 11 can be varied according to the number of connecting rods in the connecting mechanism 4. For example, when each group of connecting mechanisms 4 includes more than three parallel connecting rods, three first connecting posts 11 can be provided in the same group. The number of first connecting posts 11 can also be varied according to the number of connecting rods pivotally connected to a single first connecting post 11. For example, when the first connecting rod 41 and the second connecting rod 42 in the same group are both hinged to the same first connecting post 11, only two first connecting posts 11 can be provided. The width of the first connecting post 11 needs to be varied accordingly to accommodate the gap between the first connecting rod 41 and the second connecting rod 42, or a horizontal post needs to be added to the first connecting post 11 to accommodate the gap between the first connecting rod 41 and the second connecting rod 42. Based on this, the present invention does not limit the specific number of first connecting posts 11.

[0085] Preferably, the height of the mounting base 21 is greater than the distance between the two pivot axes of the first connecting rod 41; and / or, the height of the mounting base 21 is greater than the distance between the two pivot axes of the second connecting rod 42. In this way, when the protective cover fitted to the first connecting post 11 is installed, the seat frame 22 mounted on the mounting base 21 will not bump into the protective cover during movement.

[0086] It should be noted that in other preferred embodiments, the connecting mechanism 4 may also adopt other structures to limit the circular movement trajectory of the seat body 2, such as a structure that uses an annular groove and multiple sliders or pulleys. The connecting mechanism 4 is not limited here.

[0087] See Figure 1 and Figure 2 In this embodiment, the transmission mechanism 5 is provided in two sets, which are respectively arranged on the two opposite sides of the seat body 2, especially on the two opposite sides of the mounting base 21, to ensure that the driving force on the seat body 2 is relatively uniform and stable; that is, there are two eccentric rotating parts 51 and two connecting parts 52. At this time, the driving mechanism 3 synchronously drives the two eccentric rotating parts 51 to rotate around the first pivot axis 100, and the two eccentric rotating parts 51 drive the connecting parts 52 and drive the seat body 2 to move in a circular motion synchronously.

[0088] Specifically, the distance between the first pivot 100 and the second pivot 200 is equal to the distance between the two pivot axes of the first link 41, and also equal to the distance between the two pivot axes of the second link 42. That is, the distance between the first pivot 100 and the second pivot 200 is equal to the distance between the third pivot 300 and the fifth pivot 500, and equal to the distance between the fourth pivot 400 and the sixth pivot 600. In addition, the distance between the first pivot 100 and the fifth pivot 500 is equal to the distance between the second pivot 200 and the third pivot 300, and the distance between the first pivot 100 and the sixth pivot 600 is equal to the distance between the second pivot 200 and the fourth pivot 400. Thus, during the circular motion of the seat body 2, the second pivot axis 200 rotates around the first pivot axis 100, the third pivot axis 300 rotates around the fifth pivot axis 500, and the fourth pivot axis 400 rotates around the sixth pivot axis 600. The movement trajectories of the second pivot axis 200, the third pivot axis 300, and the fourth pivot axis 400 are the same, and the driving force of the eccentric rotating part 51 can be smoothly transmitted to the seat body 2, avoiding the phenomenon of self-locking.

[0089] In this embodiment, preferably, the connecting part 52 includes a third link 521 and a fourth link 522, which are arranged at an angle. The first end of the third link 521 and the first end of the fourth link 522 are both pivotally connected to the eccentric rotating part 51 around the second pivot axis 200. The second end of the third link 521 and the second end of the fourth link 522 are respectively connected to the seat body 2. Thus, the third link 521, the fourth link 522 and the seat body 2 form an angled support structure with each other, thereby strengthening the overall support strength of the connecting part 52.

[0090] Understandably, when the connecting part 52 is connected to the connecting mechanism 4, the second end of the third link 521 and the second end of the fourth link 522 will be connected to the connecting mechanism 4 respectively. Specifically, the second end of the third link 521 will be connected to the first link 41, and the second end of the fourth link 522 will be connected to the second link 42.

[0091] Specifically, the second end of the third link 521 and the first link 41 are pivotally connected to the seat body 2 around the third pivot axis 300, and the second end of the fourth link 522 and the second link 42 are pivotally connected to the seat body 2 around the fourth pivot axis 400. That is, the third link 521 and the first link 41 share a pivot, and the fourth link 522 and the second link 42 also share a pivot, thus simplifying the installation structure and saving some pivots. In addition, the driving force acts directly on the third pivot axis 300 and the fourth pivot axis 400 through the third link 521 and the fourth link 522, so that the two force application points coincide with the pivot axis of the first link 41 and the pivot axis of the second link 42, respectively, which facilitates the transmission of driving force and makes its movement smoother.

[0092] Specifically, the second end of the third link 521 and the first link 41 are pivotally connected to the outside of the mounting base 21 via the same pivot, and the second end of the fourth link 522 and the second link 42 are pivotally connected to the outside of the mounting base 21 via the same pivot.

[0093] In other embodiments, the connecting part 52 may also be a single-bar structure, that is, the connecting part 52 includes a vertical bar, the upper end of which is connected to the seat body 2, and the lower end of which is pivotally connected to the eccentric rotating part 51, which can also achieve the function of transmitting driving force by the connecting part 52; or, the connecting part 52 may also be other structures that can transmit the rotational driving force of the eccentric rotating part 51 to the seat body 2, and the specific structure of the connecting part 52 is not limited here.

[0094] See Figure 2 and Figure 4In this embodiment, the drive mechanism 3 includes a motor 31, a worm gear 32, a worm wheel 33, a first pulley 34, a second pulley 35, and a belt 36. The transmission components, consisting of a first pulley 34, a second pulley 35, and a belt 36, connect the motor 31 and the worm gear 32. Specifically, the first pulley 34 is mounted on the output shaft of the motor 31, the second pulley 35 is mounted on the rotating shaft of the worm gear 32, and the belt 36 is wound around the first pulley 34 and the second pulley 35 to achieve the transmission connection between the motor 31 and the worm gear 32. Notably, the diameter of the first pulley 34 is smaller than the diameter of the second pulley 35. The worm wheel 33 cooperates with the worm gear 32, and the eccentric rotating part 51 includes a rotating rod 511. The first end of the rotating rod 511 is fixedly connected to the rotating shaft of the worm wheel 33. At this time, the first pivot axis 100 is co-lined with the axis of the rotating shaft of the worm wheel 33, and the rotating rod 511 rotates with the rotation of the worm wheel 33. The second end of the rotating rod 511 is pivotally connected to the connecting part 52. Specifically, the third connecting rod 521 and the fourth connecting rod 522 are pivotally connected to the second end of the rotating rod 511 through the same pivot axis. In this way, the power output is achieved by using a worm gear structure, and its self-locking function is used to control the seat body 2 to remain in the current position after the motor 31 is powered off, so that it will not loosen due to accidental power failure, thus improving safety.

[0095] It should be noted that the motor 31 and the worm 32 can also be connected by other means, such as a coupling or a gear reducer. The transmission connection method between the motor 31 and the worm 32 is not limited here.

[0096] Specifically, the support base 1 is provided with two second connecting columns 12 and two third connecting columns 13, and a crossbar 14 is provided between the two first connecting columns 11. The two second connecting columns 12 and the two third connecting columns 13 are all located within the accommodating space enclosed by the multiple first connecting columns 11, so as to further make full use of the space between the first connecting columns 11. The motor 31 is mounted on the crossbar 14, the worm gear 33 is rotatably mounted between the two second connecting columns 12, and the worm 32 is rotatably mounted between the two third connecting columns 13. The rotation axis of the worm gear 33 is perpendicular to the plane of the circular motion of the seat body 2, and the rotation axis of the worm 32 is parallel to the plane of the circular motion of the seat body 2.

[0097] Preferably, the two sets of transmission mechanisms 5 are also arranged opposite each other on opposite sides of the worm gear 33, and the first ends of the two rotating rods 511 are respectively fixedly connected to the two ends of the rotating shaft of the worm gear 33, so that the two ends of the rotating shaft of the worm gear 33 are subjected to uniform force and the overall service life is extended. Specifically, the rotating rods 511 are located outside the second connecting column 12 to avoid interference.

[0098] In other embodiments, the eccentric rotating part 51 may also be a pin eccentrically disposed on one side of the worm gear 33, and the connecting part 52 is pivotally connected to the pin. The pin can also rotate in a circular motion as the worm gear 33 rotates. At this time, the pin can rotate relative to the support base 1 around the axis of the worm gear 33, that is, the first pivot axis 100 is also co-lined with the axis of the worm gear 33. In addition, in order to avoid interference, there will be only one pin, that is, the eccentric rotating part 51 cannot be arranged in pairs; or, the eccentric rotating part 51 may also be other structures that can output rotational driving force to the connecting part 52. The specific structure of the eccentric rotating part 51 is not limited here.

[0099] In other preferred embodiments, the driving method for the first link 41 and the second link 42 can also be: (i) the transmission mechanism 5 includes a first transmission component and a second transmission component, the driving mechanism 3 drives the first transmission component and the second transmission component to move, the first transmission component is connected to the first link 41 and drives the first link 41 to perform circular motion, the second transmission component is connected to the second link 42 and drives the second link 42 to perform circular motion, wherein the first transmission component and the first link 41, and the second transmission component and the second link 42, can be gear transmission or swing arm transmission; (ii) the driving mechanism 3 includes a first driving mechanism and a second driving mechanism, the first driving mechanism is connected to the first link 41 and drives the first link 41 to perform circular motion, and the second driving mechanism is connected to the second link 42 and drives the second link 42 to perform circular motion. It should be noted that in these two schemes, the rotational speed of the first link 41 relative to the supporting base 1 is the same as the rotational speed of the second link 42 relative to the supporting base 1.

[0100] In this embodiment, for ease of understanding, the working process of this utility model is as follows:

[0101] by Figure 1As shown, taking the highest point of the baby rocking device's circular motion as an example, at this time, the motor 31 starts to output power, driving the first pulley 34 to rotate. The first pulley 34 drives the second pulley 35 to rotate via the belt 36. The second pulley 35 drives the worm gear 32 to rotate synchronously. The worm gear 32 drives the worm wheel 33 to rotate clockwise. The worm wheel 33 drives the rotating rod 511 to rotate synchronously, causing the second end of the rotating rod 511 to perform circular motion around the axis of the worm wheel 33's rotation shaft (i.e., the first pivot axis 100). The second end drives the third link 521 and the fourth link 522 to move clockwise. The third link 521 and the fourth link 522 drive the mounting base 21 to move synchronously, causing the first link 41 to rotate clockwise around its pivot axis with the first connecting post 11 (i.e., the fifth pivot axis 500), and causing the second link 42 to rotate clockwise around its pivot axis with the first connecting post 11 (i.e., the sixth pivot axis 600). This causes the seat body 2 to perform a clockwise circular motion relative to the support base 1. During this motion, the baby rocking device sequentially experiences... Figure 5 , Figure 6 , Figure 7 After the state shown, it will be restored to Figure 1 The state shown is then maintained in a cycle as the motor 31 continues to output power.

[0102] Example 2

[0103] See Figures 8 to 10 This embodiment also discloses an infant rocking device. The difference between this embodiment and embodiment 1 is that the number of connecting mechanisms 4 is different, the number of connecting rods of the connecting part 52 is different, and the number of corresponding first connecting posts 11 is different.

[0104] See Figure 9 and Figure 10 In this embodiment, similarly, the connecting mechanism 4 includes a first connecting rod 41 and a second connecting rod 42, which are pivotally connected between the seat body 2 and the support base 1, respectively. However, the connecting mechanism 4 has only one set, and based on this, the first connecting rod 41 and the second connecting rod 42 are arranged diagonally opposite each other on two opposite sides of the mounting base 21. Compared to Embodiment 1, this embodiment has only one first connecting rod 41 and one second connecting rod 42. Arranging the first connecting rod 41 and the second connecting rod 42 diagonally simplifies the structure and saves costs while maintaining stability.

[0105] The aforementioned diagonal arrangement means that the first link 41 and the second link 42 are spaced apart in a direction parallel to the first pivot axis 100, the second pivot axis 200, the third pivot axis 300, the fourth pivot axis 400, the fifth pivot axis 500, or the sixth pivot axis 600; and also spaced apart in a direction perpendicular to the fifth pivot axis 500 or the sixth pivot axis 600. For example, Figure 9 The directions shown are for reference only. One specific example is that the first link 41 is located behind the left side of the mounting base 21, and the second link 42 is located in front of the right side of the mounting base 21.

[0106] Based on the quantity and arrangement of the first connecting rod 41 and the second connecting rod 42 mentioned above, the support base 1 is provided with two first connecting columns 11. The two first connecting columns 11 are also arranged diagonally opposite each other. One first connecting column 11 and the first connecting rod 41 are in corresponding positions and pivotally connected. The other first connecting column 11 and the second connecting rod 42 are in corresponding positions and pivotally connected. Preferably, the first connecting rod 41 and the second connecting rod 42 are respectively pivotally connected to the inner side of different first connecting columns 11. When the drive mechanism 3 drives the seat body 2 to make a circular motion, the mounting seat 21 can move within the accommodating space between the two first connecting columns 11.

[0107] See Figure 9 and Figure 10 In this embodiment, the specific structure of the drive mechanism 3 can be referred to the relevant description in Embodiment 1. The worm gear 33 is also provided; and the transmission mechanism 5 is also provided in two sets and arranged opposite to each other on the two opposite sides of the worm gear 33. Each set of transmission mechanism 5 also includes an eccentric rotating part 51 and a connecting part 52. The eccentric rotating part 51 also includes a transmission rod. The rotating rods 511 of the two transmission mechanisms 5 are respectively fixedly connected to the two ends of the rotating shaft of the worm gear 33.

[0108] It is understood that the installation method of motor 31 can also adopt the scheme shown in Embodiment 3, or other known schemes, and the installation method of motor 31 is not limited here.

[0109] Unlike other components, the connecting part 52 only includes a third link 521. The third link 521 is preferably inclined. The first end of the third link 521 is pivotally connected to the second end of the rotating rod 511. The second end of the third link 521 and the first link 41 of the connecting mechanism 4 are pivotally connected to the seat body 2 around a third pivot axis 300, or the second end of the third link 521 and the second link 42 of the connecting mechanism 4 are pivotally connected to the seat body 2 around a fourth pivot axis 400. That is, based on the existence of two third links 521, the second end of one third link 521 and the first link 41 of the connecting mechanism 4 are pivotally connected to the seat body 2 around a third pivot axis 300, and the second end of the other third link 521 and the second link 42 of the connecting mechanism 4 are pivotally connected to the seat body 2 around a fourth pivot axis 400.

[0110] Of course, depending on design requirements, the third link 521 can also be set vertically or horizontally; the arrangement direction of the third link 521 is not limited here. In addition, the second end of the third link 521 can also be fixedly connected relative to the seat body 2.

[0111] Specifically, in combination Figure 9 and Figure 10 and with Figure 9 The indicated direction is for reference. In the transmission mechanism 5 located on the back of the worm gear 33, the first end of the rotating rod 511 is fixedly connected to the rear end of the rotating shaft of the worm gear 33. The first pivot axis 100 is co-lined with the axis of the rotating shaft of the worm gear 33, so that the rotating rod 511 is rotated relative to the support base 1 around the first pivot axis 100. The first end of the third connecting rod 521 is pivotally connected to the second end of the rotating rod 511 around the second pivot axis 200. The second end of the third connecting rod 521 and the first connecting rod 41 are pivotally connected to the mounting base 21 around the third pivot axis 300. On the left side; in the transmission mechanism 5 located in front of the worm gear 33, the first end of the rotating rod 511 is fixedly connected to the front end of the rotating shaft of the worm gear 33. The first pivot axis 100 is co-lined with the axis of the rotating shaft of the worm gear 33, so that the rotating rod 511 is rotated relative to the support base 1 around the first pivot axis 100. The first end of the third connecting rod 521 is pivotally connected to the second end of the rotating rod 511 around the second pivot axis 200. The second end of the third connecting rod 521 and the second connecting rod 42 are pivotally connected to the right side of the mounting base 21 around the fourth pivot axis 400.

[0112] Thus, compared to Embodiment 1, the baby rocking device in this embodiment only requires one first connecting rod 41, one second connecting rod 42, two rotating rods 511, two third connecting rods 521, and two first connecting posts 11, thereby saving one first connecting rod 41, one second connecting rod 42, two fourth connecting rods 522, and two first connecting posts 11. While ensuring stability, the overall structure is simpler, has fewer parts, and lower cost.

[0113] It is understood that, as described in Embodiment 1, the eccentric rotating part 51 may also be other structures capable of outputting rotational driving force to the connecting part 52, and the specific structure of the eccentric rotating part 51 is not limited here.

[0114] It should be noted that for other structures not described, please refer to the relevant descriptions in Embodiment 1, which will not be repeated here.

[0115] In this embodiment, for ease of understanding, the operation of the baby rocking device is as follows:

[0116] by Figure 8 and Figure 9 As shown, taking the lowest point of the circular motion of the baby rocking device as an example, at this time, the motor 31 starts to output power. The motor 31 drives the first pulley 34 to rotate, the first pulley 34 drives the second pulley 35 to rotate through the belt 36, the second pulley 35 drives the worm 32 to rotate synchronously, the worm 32 drives the worm wheel 33 to rotate clockwise, and the worm wheel 33 drives the rotating rod 511 to rotate synchronously, so that the second end of the rotating rod 511 rotates around the axis of the worm wheel 33 (that is, the first pivot axis). 100) The second end of the rotating rod 511 drives the third link 521 to move clockwise, and the third link 521 drives the mounting base 21 to move synchronously, so that the first link 41 rotates clockwise around its pivot axis with the first connecting column 11 (i.e., the fifth pivot axis 500), and the second link 42 rotates clockwise around its pivot axis with the first connecting column 11 (i.e., the sixth pivot axis 600), so that the seat body 2 makes a clockwise circular motion relative to the support base 1.

[0117] Example 3

[0118] See Figures 11 to 13 This embodiment also discloses an infant rocking device. The difference between this embodiment and embodiment 2 is that there are two worm gears 33, and each worm gear 33 drives a set of transmission mechanisms 5.

[0119] In this embodiment, similar to Embodiment 2, only one set of connecting mechanism 4 is provided. Connecting mechanism 4 includes a first connecting rod 41 and a second connecting rod 42. The first connecting rod 41 and the second connecting rod 42 are pivotally connected between the seat body 2 and the support base 1, respectively. The first connecting rod 41 and the second connecting rod 42 are diagonally opposite to each other on two opposite sides of the mounting base 21. Similarly, two sets of transmission mechanism 5 are provided. Each set of transmission mechanism 5 also includes an eccentric rotating part 51 and a connecting part 52. The eccentric rotating part 51 also includes a transmission rod, and the connecting part 52 also only includes a third connecting rod 521. In contrast, there are two worm gears 33. The two worm gears 33 are arranged at intervals along the axial direction of the worm 32. The two sets of transmission mechanisms 5 are arranged opposite to each other on two opposite sides of the two worm gears 33. The rotating rods 511 of different transmission mechanisms 5 are respectively fixedly connected to the rotating shafts of different worm gears 33.

[0120] Specifically, in combination Figure 11 and Figure 12 and with Figure 12 With the indicated direction as a reference, in the transmission mechanism 5 located on the back of the worm gear 33, the first end of the rotating rod 511 is fixedly connected to the rear end of the rotating shaft of the worm gear 33 on the left side, so that the rotating rod 511 is rotated relative to the support base 1 around the axis of the rotating shaft of the worm gear 33 on the left side. The first end of the third connecting rod 521 is pivotally connected to the second end of the rotating rod 511. The second end of the third connecting rod 521 and the first connecting rod 41 are pivotally connected to the left side of the mounting base 21 around the third pivot axis 300. In the transmission mechanism 5 located in front of the worm gear 33, the first end of the rotating rod 511 is fixedly connected to the front end of the rotating shaft of the worm gear 33 on the right side, so that the rotating rod 511 is rotated relative to the support base 1 around the axis of the rotating shaft of the worm gear 33 on the right side. The first end of the third connecting rod 521 is pivotally connected to the second end of the rotating rod 511. The second end of the third connecting rod 521 and the second connecting rod 42 are pivotally connected to the right side of the mounting base 21 around the fourth pivot axis 400.

[0121] Thus, compared to Embodiment 1 or 2, the baby rocking device in this embodiment uses a double worm gear 33 to form two spaced-apart power points, which can increase the driving force.

[0122] It is understood that, as described in Embodiment 1, in other embodiments, the eccentric rotating part 51 may also be a pin eccentrically disposed on one side of the worm gear 33, and the connecting part 52 is pivotally connected to the pin. The pin can also make a circular motion as the worm gear 33 rotates. At this time, the pin can rotate relative to the support base 1 around the axis of the worm gear 33, that is, the first pivot axis 100 is also co-lined with the axis of the worm gear 33. Alternatively, the eccentric rotating part 51 may also be other structures that can output rotational driving force to the connecting part 52. The specific structure of the eccentric rotating part 51 is not limited here.

[0123] See Figure 12 and with Figure 12 The directions shown are for reference only. It can be understood that, due to the use of two worm gears 33 and two sets of transmission mechanisms 5, and the two worm gears 33 being arranged at intervals along the axis of the worm 32, according to the definition of the first pivot axis 100 and the second pivot axis 200 in Embodiment 1, there will be two parallel first pivot axes 100 and two parallel second pivot axes 200. To avoid ambiguity, it is defined here that: the axis of the right worm gear 33 is the first pivot axis 100, the pivot axis of the right rotating rod and the right third connecting rod is the second pivot axis 200, the axis of the left worm gear 33 is the seventh pivot axis, and the pivot axis of the left rotating rod and the left third connecting rod is the eighth pivot axis.

[0124] Additionally, see Figure 12 and Figure 13 Another difference is that a fourth connecting column 15 is provided on the support base 1, and the motor 31 is installed on the fourth connecting column 15.

[0125] It should be noted that for other structures not described, please refer to the relevant descriptions in Embodiment 1 or 2, which will not be repeated here.

[0126] In this embodiment, for ease of understanding, the operation of the baby rocking device is as follows:

[0127] by Figure 11 and Figure 12 As shown, taking the lowest point of the baby rocking device's circular motion as an example, at this time, the motor 31 starts to output power, driving the first pulley 34 to rotate. The first pulley 34 drives the second pulley 35 to rotate via the belt 36. The second pulley 35 drives the worm gear 32 to rotate synchronously. The worm gear 32 drives two worm wheels 33 to rotate synchronously clockwise. Different worm wheels 33 drive different rotating rods 511 to rotate synchronously, so that the second ends of the different rotating rods 511 rotate around different worm wheels. The axis of the wheel 33 rotates in a circular motion. The second end of the rotating rod 511 drives the third connecting rod 521 to move clockwise. The third connecting rod 521 drives the mounting base 21 to move synchronously, so that the first connecting rod 41 rotates clockwise around its pivot axis with the first connecting column 11 (i.e., the fifth pivot axis 500), and the second connecting rod 42 rotates clockwise around its pivot axis with the first connecting column 11 (i.e., the sixth pivot axis 600), thereby causing the seat body 2 to perform a clockwise circular motion relative to the supporting base 1.

[0128] Example 4

[0129] See Figures 14 to 16This embodiment also discloses an infant rocking device. The difference between this embodiment and embodiment 3 is that the connecting mechanism 4 is provided in two sets, and the transmission mechanism 5 is provided in four sets. Each worm gear 33 drives two sets of transmission mechanisms 5 respectively.

[0130] This embodiment combines the solutions of Embodiment 1 and Embodiment 3, and has the advantages of both Embodiment 1 and Embodiment 3: that is, it avoids downward torsion of a single corner and forms two spaced-apart power points, which can increase the driving force.

[0131] In this embodiment, similar to embodiment 1, the connecting mechanism 4 is provided in two sets. The two sets of connecting mechanisms 4 are arranged opposite to each other and are respectively arranged on two opposite sides of the mounting base 21 to improve the stability of the seat body 2 during movement and avoid downward twisting under unilateral force. The connecting mechanism 4 is provided in two sets, that is, there are two first connecting rods 41 and two second connecting rods 42. The support base 1 is provided with multiple first connecting columns 11. The multiple first connecting columns 11 are divided into two groups and arranged opposite to each other. The two first connecting columns 11 in each group are pivotally connected to the first connecting rod 41 and the second connecting rod 42 in each group of connecting mechanisms 4. Preferably, the two first connecting rods 41 and the two second connecting rods 42 are pivotally connected to the inner side of different first connecting columns 11. In particular, when the driving mechanism 3 drives the seat body 2 to make a circular motion, the mounting base 21 can move within the accommodating space enclosed by the multiple first connecting columns 11.

[0132] In this embodiment, similar to Embodiment 3, two worm gears 33 are provided, arranged at intervals along the axial direction of the worm 32. Each worm gear 33 drives at least one set of transmission mechanisms 5. Each set of transmission mechanisms 5 also includes an eccentric rotating part 51 and a connecting part 52. The eccentric rotating part 51 also includes a transmission rod, and the connecting part 52 also includes only a third connecting rod 521. The difference is that four sets of transmission mechanisms 5 are provided and arranged in pairs. The first end of the rotating rod 511 of each pair of transmission mechanisms 5 is fixedly connected to both ends of the shaft of a corresponding worm gear 33.

[0133] Specifically, in combination Figure 14 and Figure 15 and with Figure 15With the indicated direction as a reference, in a set of transmission mechanisms 5 located at the left rear, the first end of the rotating rod 511 is fixedly connected to the rear end of the rotating shaft of the worm gear 33 on the left, thereby causing the rotating rod 511 to rotate relative to the support base 1 about the axis of the rotating shaft of the worm gear 33 on the left. The first end of the third connecting rod 521 is pivotally connected to the second end of the rotating rod 511. The second end of the third connecting rod 521 and the first connecting rod 41 located at the left rear are pivotally connected to the left rear of the mounting base 21 about the third pivot axis 300. In a set of transmission mechanisms 5 located at the left front, the first end of the rotating rod 511 is fixedly connected to the front end of the rotating shaft of the worm gear 33 on the left, thereby causing the rotating rod 511 to rotate relative to the support base 1 about the axis of the rotating shaft of the worm gear 33 on the left. The first end of the third connecting rod 521 is pivotally connected to the second end of the rotating rod 511. The second end of the third connecting rod 521 and the first connecting rod 41 located at the left front are pivotally connected to the left rear of the mounting base 21 about the third pivot axis 300. In the front right side transmission mechanism 5, the first end of the rotating rod 511 is fixedly connected to the rear end of the shaft of the worm gear 33 on the right side, so that the rotating rod 511 is rotated relative to the support base 1 about the axis of the shaft of the worm gear 33 on the right side. The first end of the third link 521 is pivotally connected to the second end of the rotating rod 511. The second end of the third link 521 and the second link 42 located on the rear right side are pivotally connected to the rear right side of the mounting base 21 about the fourth pivot axis 400. In the front right transmission mechanism 5, the first end of the rotating rod 511 is fixedly connected to the front end of the shaft of the worm gear 33 on the right side, so that the rotating rod 511 is rotated relative to the support base 1 about the axis of the shaft of the worm gear 33 on the right side. The first end of the third link 521 is pivotally connected to the second end of the rotating rod 511. The second end of the third link 521 and the second link 42 located on the front right side are pivotally connected to the front right side of the mounting base 21 about the fourth pivot axis 400.

[0134] Thus, compared to embodiments 1, 2, or 3, the baby rocking device in this embodiment adopts a driving method that combines double worm gears 33 with four sets of transmission mechanisms 5 and two sets of connecting mechanisms 4. This improves the stability during movement and avoids downward twisting under unilateral force. It also makes full use of the space between the first connecting columns 11, which helps to reduce the overall height of the product and achieve a better overall effect. Furthermore, it forms two spaced power points, which can increase the driving force.

[0135] It is understood that, as described in Embodiment 1, the eccentric rotating part 51 may also be other structures capable of outputting rotational driving force to the connecting part 52, and the specific structure of the eccentric rotating part 51 is not limited here.

[0136] See Figure 15 and with Figure 15The directions shown are for reference only. It can be understood that, due to the use of two worm gears 33 and four sets of transmission mechanisms 5, and the two worm gears 33 being arranged at intervals along the axis of the worm 32, according to the definition of the first pivot axis 100 and the second pivot axis 200 in Embodiment 1, there will be two parallel first pivot axes 100 and two parallel second pivot axes 200. To avoid ambiguity, it is defined here that: the axis of the right worm gear 33 rotating shaft is the first pivot axis 100, the pivot axis of the right rotating rod and the right third connecting rod is the second pivot axis 200, the axis of the left worm gear 33 rotating shaft is the seventh pivot axis, and the pivot axis of the left rotating rod and the left third connecting rod is the eighth pivot axis.

[0137] It should be noted that for other structures not described, please refer to the relevant descriptions in Embodiments 1, 2, or 3, which will not be repeated here.

[0138] In this embodiment, for ease of understanding, the operation of the baby rocking device is as follows:

[0139] by Figure 14 and Figure 15 As shown, taking the lowest point of the circular motion of the baby rocking device as an example, at this time, the motor 31 starts to output power. The motor 31 drives the first pulley 34 to rotate, and the first pulley 34 drives the second pulley 35 to rotate through the belt 36. The second pulley 35 drives the worm gear 32 to rotate synchronously, and the worm gear 32 drives the two worm wheels 33 to rotate synchronously clockwise. The different worm wheels 33 drive the two different rotating rods 511 to rotate synchronously, so that the second ends of the four rotating rods 511 rotate around the different worm wheels 33 in pairs. The axis of the shaft moves in a circular motion. The second ends of the four rotating rods 511 drive the four different third connecting rods 521 to move clockwise. The four third connecting rods 521 drive the mounting base 21 to move synchronously, so that the two first connecting rods 41 rotate clockwise around their pivot axis with the first connecting column 11 (i.e., the fifth pivot axis 500), and the two second connecting rods 42 rotate clockwise around their pivot axis with the first connecting column 11 (i.e., the sixth pivot axis 600), thereby causing the seat body 2 to move in a clockwise circular motion relative to the support base 1.

[0140] Example 5

[0141] See Figures 17 to 21 This embodiment also discloses an infant rocking device. The difference between this embodiment and embodiment 1, 2, 3 or 4 is that the rotating rod 511 is directly pivotally connected to the seat body 2. Specifically, the first connecting rod 41, the second connecting rod 42 and the rotating rod 511 are all pivotally connected to the swing member 23 in the seat body 2; and it also includes an auxiliary spring 6 for providing upward assist force.

[0142] In this embodiment, similar to Embodiment 1, the baby rocking device also includes a support base 1, a seat body 2, a drive mechanism 3, and a connecting mechanism 4. The support base 1 serves as the supporting body and can be supported on the ground. The connecting mechanism 4 is disposed between the seat body 2 and the support base 1. The seat body 2 serves to support the baby, and the main function of the connecting mechanism 4 is to limit the movement trajectory of the seat body 2 relative to the support base 1. When necessary, the connecting mechanism 4 can also provide some support for the seat body 2. The drive mechanism 3 is disposed on the support base 1. In particular, the seat body 2 is configured to be driven by the drive mechanism 3 to perform circular motion relative to the support base 1 in a vertical or inclined plane. The drive mechanism 3 can output power to the seat body 2, at which time the seat body 2 drives the connecting mechanism 4 to move simultaneously.

[0143] Thus, the baby rocking device of this embodiment can also solve the same technical problems as described in Embodiment 1 and achieve the same technical effects.

[0144] Additionally, see Figures 18 to 20 Similar to Embodiment 1, the connecting mechanism 4 includes a first link 41 and a second link 42, which are pivotally connected between the seat body 2 and the support base 1, respectively. Thus, under the driving action of the driving mechanism 3, the rotational trajectories of the first link 41 and the second link 42 restrict the movement trajectory of the seat body 2.

[0145] As is also preferred in Embodiment 1, the distance between the two pivot axes of the first link 41 is equal to the distance between the two pivot axes of the second link 42, and the distance between the pivot axis between the first link 41 and the seat body 2 and the pivot axis between the second link 42 and the seat body 2 is equal to the distance between the pivot axis between the first link 41 and the support base 1 and the pivot axis between the second link 42 and the support base 1.

[0146] As is preferred in Embodiment 1, the connecting mechanism 4 is provided in two sets, and the two sets of connecting mechanisms 4 are arranged opposite to each other to improve the stability of the seat body 2 during movement and avoid downward twisting under unilateral force; the connecting mechanism 4 is provided in two sets, that is, the first connecting rod 41 is provided in two sets, and the second connecting rod 42 is also provided in two sets.

[0147] As is preferred in Embodiment 1, the drive mechanism 3 includes a motor 31, a worm gear 32, a worm wheel 33, a first pulley 34, a second pulley 35, and a belt 36. The connection relationship of each component in the drive mechanism 3 can be referred to the relevant description in Embodiment 1. The worm wheel 33 is also provided.

[0148] The difference lies in the installation scheme of the drive mechanism 3 on the support base 1: In this embodiment, a lower mounting box 17 is provided on the support base 1, and the lower mounting box 17 is connected to the upper mounting box 18. The worm gear 32 and the worm wheel 33 are located between the lower mounting box 17 and the upper mounting box 18, and the worm wheel 33 is centrally arranged relative to the support base 1. Two sets of connecting mechanisms 4 are respectively located on two opposite sides of the upper mounting box 18, and the two first connecting rods 41 and the two second connecting rods 42 are pivotally connected to the upper mounting box 18.

[0149] The difference lies in that the transmission mechanism 5 only includes a rotating rod 511. The first end of the rotating rod 511 is fixedly connected to the shaft of the worm gear 33, and the second end is pivotally connected to the seat body 2. The first pivot axis 100 is colinear with the axis of the worm gear 33 shaft, allowing the rotating rod 511 to rotate relative to the support base 1 around the first pivot axis 100. The second end of the rotating rod 511 is pivotally connected to the seat body 2 around the second pivot axis 200. When the drive mechanism 3 drives the rotating rod 511 in circular motion, the rotating rod 511 can drive the seat body 2 to perform synchronous circular motion. This simplifies the structure of the transmission mechanism 5, requiring only the rotating rod 511, thus saving costs.

[0150] See Figures 17 to 19 In this embodiment, preferably, the seat body 2 includes a swing piece 23, a mounting base 21 and a seat frame 22 connected together. The swing piece 23 supports the mounting base 21, and the mounting base 21 supports the seat frame 22. The first connecting rod 41, the second connecting rod 42 and the rotating rod 511 are all pivotally connected to the swing piece 23, so that the mounting base 21 and the seat frame 22 can be driven to make circular motion through the swing piece 23.

[0151] It is understood that, as described in Embodiment 1, in other embodiments, the eccentric rotating part 51 may also be a pin eccentrically disposed on one side of the worm gear 33, with the seat body 2 pivotally connected to the pin, specifically the swing piece 23 pivotally connected to the pin. The pin can also rotate in a circular motion as the worm gear 33 rotates. At this time, the pin can rotate relative to the support base 1 around the axis of the worm gear 33's rotation shaft, that is, the first pivot axis 100 is also co-linear with the axis of the worm gear 33's rotation shaft. In addition, to avoid interference, there will only be one pin, that is, the eccentric rotating part 51 cannot be arranged in pairs; or, the eccentric rotating part 51 may also be other structures that can output rotational driving force to the connecting part 52. The specific structure of the eccentric rotating part 51 is not limited here.

[0152] See Figures 18 to 20 To improve support strength and movement stability, there are two rotating rods 511, two ornaments 23, and two sets of connecting mechanisms 4. The two rotating rods 511 are respectively fixedly connected to the two ends of the rotating shaft of the worm gear 33. One rotating rod 511, one ornament 23, and one set of connecting mechanisms 4 are set up one-to-one.

[0153] Specifically, with Figure 18 With the indicated direction as a reference, a rotating rod 511, a swing member 23, and a set of connecting mechanisms 4 are located on the rear side of the upper mounting box 18. In this structure, the first end of the rear rotating rod 511 is pivotally connected to the rear end of the worm gear 33 shaft, and the second end of the rear rotating rod 511 is pivotally connected to the rear swing member 23. The first ends of the rear first connecting rod 41 and the first ends of the rear second connecting rod 42 are respectively pivotally connected to the rear side of the upper mounting box 18, and the second ends of the rear first connecting rod 41 and the second ends of the rear second connecting rod 42 are respectively pivotally connected to the rear swing member. 23; Another rotating rod 511, another swing piece 23 and another set of connecting mechanisms 4 are located on the front side of the upper mounting box 18. In this set of structures, the first end of the front rotating rod 511 is pivotally connected to the front end of the worm gear 33 shaft, the second end of the front rotating rod 511 is pivotally connected to the front swing piece 23, the first end of the front first connecting rod 41 and the first end of the front second connecting rod 42 are respectively pivotally connected to the front side of the upper mounting box 18, and the second end of the front first connecting rod 41 and the second end of the front second connecting rod 42 are respectively pivotally connected to the front swing piece 23.

[0154] See Figure 18 and Figure 21 The ornament 23 includes a first part 231 and a second part 232. The second part 232 is connected to the first part 231 and is used to connect to the mounting base 21. The first connecting rod 41, the second connecting rod 42, and the rotating rod 511 are all pivotally connected to the first part 231. Preferably, the first part 231 is in the shape of an integral inverted triangle. The first connecting rod 41 and the second connecting rod 42 are pivotally connected to the two corners above the first part 231, and the rotating rod 511 is pivotally connected to the corner below the first part 231. Specifically, the first part 231 includes a first segment 2311, a second segment 2312, and a third segment 2313. The lower end of the first segment 2311 is connected to the lower end of the second segment 2312. One end of the third segment 2313 is connected to the upper end of the first segment 2311, and the other end of the third segment 2313 is connected to the upper end of the second segment 2312. The first segment 2311, the second segment 2312, and the third segment 2313 are integrally formed and are on the same plane. The first connecting rod 41 is pivotally connected to the connection between the third segment 2313 and the first segment 2311. The second connecting rod 42 is pivotally connected to the connection between the third segment 2313 and the second segment 2312. The rotating rod 511 is pivotally connected to the connection between the first segment 2311 and the second segment 2312. The connection points between the third segment 2313 and the first segment 2311, and between the third segment 2313 and the second segment 2312, are the two corners above the first part 231, while the connection points between the first segment 2311 and the second segment 2312 are the corners below the first part 231.

[0155] Thus, compared to the method of stacking three rods and pivoting them to the first connecting rod 41, the second connecting rod 42, and the rotating rod 511 respectively (which would result in a total of six pivot points and an overall thickness of at least the combined thickness of two rods), the embodiment provided by using a single component, the swing piece 23, to pivot the first connecting rod 41, the second connecting rod 42, and the rotating rod 511 only requires three pivot points to achieve pivoting with the first connecting rod 41, the second connecting rod 42, and the rotating rod 511, saving the thickness of three pivot points and at least one rod. When two swing pieces 23 are used, the overall thickness of six pivot points and at least two rods are saved, thus the overall thickness can be made thinner and the cost is lower.

[0156] It should be noted that the central area enclosed by the first segment 2311, the second segment 2312, and the third segment 2313 can form a sealed area. Reinforcing ribs can be formed within this sealed area. Therefore, when viewing the first part 231 as a whole, the central area of ​​the first part 231 can be considered as partially recessed. Of course, the central area enclosed by the first segment 2311, the second segment 2312, and the third segment 2313 can also be hollowed out.

[0157] Based on the fact that the first part 231 adopts an integrated structure, and preferably, the first part 231 and the second part 232 are also integrally molded, thereby improving the overall strength and stability of the ornament 23 and controlling its cost.

[0158] In other preferred embodiments, the ornament 23 may also adopt other structural shapes. For example, the first part 231 may be T-shaped or cross-shaped. In this case, the second segment 2312 is vertically arranged, and the first segment 2311 and the third segment 2313 are horizontally arranged and connected to each other on both sides of the second segment 2312 (in this case, the first segment 2311 and the third segment 2313 may be regarded as the same horizontal segment). The first connecting rod 41 is pivotally connected to the first segment 2311, the second connecting rod 42 is pivotally connected to the third segment 2313, and the rotating rod 511 is pivotally connected to the second segment 2312. 12; or the first part 231 can also be U-shaped, in which case the second part 232 can be connected above the first part 231, and the specific pivoting positions of the first link 41, the second link 42 and the rotating rod 511 on the first part 231 can be adjusted according to the setting requirements; or the first part 231 can also be rectangular or trapezoidal, in which case the first part 231 will also include a fourth segment, and the specific pivoting positions of the first link 41, the second link 42 and the rotating rod 511 on the first part 231 can be adjusted according to the setting requirements.

[0159] See Figures 17 to 19The baby rocking device also includes an auxiliary spring 6, which provides an upward assist force. One end of the auxiliary spring 6 is connected to the rocker 23, and the other end is connected to the support base 1. In this way, the auxiliary spring 6 can provide an upward assist force when driving the rocker 23 to rise, which saves effort and makes it easier for the drive mechanism 3 to drive the seat body 2 to swing upward in a circular motion.

[0160] Specifically, in order to provide a more stable upward assist force, at least two auxiliary springs 6 are provided. Since there are two pendant pieces 23, the number of auxiliary springs 6 is preferably four. Each pair of auxiliary springs 6 is set up in pairs and corresponds to one pendant piece 23. In each pair of auxiliary springs 6, the two auxiliary springs 6 are arranged in an inverted V-shape facing each other. One end of each of the two auxiliary springs 6 is connected to the pendant piece 23, and the other end of each of the two auxiliary springs 6 is connected to the support base 1. Specifically, the support base 1 is provided with four fifth connecting rods. The other end of each of the different auxiliary springs 6 is connected to a different fifth connecting post 16, thus realizing the relative connection of the auxiliary springs 6 between the pendant piece 23 and the support base 1.

[0161] Regarding the specific connection scheme between the auxiliary spring 6 and the ornament 23, and between the auxiliary spring 6 and the fifth connecting post 16, optionally, two first hook posts are provided on the first part 231 of each ornament 23, and the two first hook posts are arranged alternately at the lower corner of the first part 231. A second hook post is provided on the upper end of each fifth connecting post 16, one end of the auxiliary spring 6 is connected to the first hook post, and the other end of the auxiliary spring 6 is connected to the second hook post. Of course, other methods can also be used to connect the auxiliary spring 6 to the ornament 23, and the auxiliary spring 6 to the fifth connecting post 16, which are not limited here.

[0162] It should be noted that for other structures not described, please refer to the relevant descriptions in Embodiment 1, which will not be repeated here.

[0163] In this embodiment, for ease of understanding, the operation of the baby rocking device is as follows:

[0164] by Figure 17 and Figure 18As shown, taking the highest point of the baby rocking device's circular motion as an example, at this time, the motor 31 starts to output power, driving the first pulley 34 to rotate. The first pulley 34 drives the second pulley 35 to rotate via the belt 36. The second pulley 35 drives the worm gear 32 to rotate synchronously. The worm gear 32 drives the worm wheel 33 to rotate clockwise. The worm wheel 33 drives the two rotating rods 511 to rotate synchronously, causing the second end of the rotating rod 511 to rotate around the axis of the worm wheel 33's rotation shaft (i.e., the first pivot). Line 100) makes a circular motion, and the second ends of the two rotating rods 511 drive the two swing pieces 23 to move clockwise. The swing pieces 23 drive the mounting base 21 and the seat frame 22 to move synchronously, so that the first connecting rod 41 rotates clockwise around its pivot axis with the upper mounting box 18 (that is, the fifth pivot axis 500), so that the second connecting rod 42 rotates clockwise around its pivot axis with the upper mounting box 18 (that is, the sixth pivot axis 600), thereby making the seat body 2 make a clockwise circular motion relative to the support base 1.

[0165] Example 6

[0166] See Figures 22 to 24 This embodiment also discloses an infant rocking device. The difference between this embodiment and embodiment 1, 2, 3, 4 or 5 is that: there are two worm gears 33, the transmission mechanism 5 is eliminated, and the first connecting rod 41 and the second connecting rod 42 are respectively fixedly connected to the rotating shafts of different worm gears 33.

[0167] In this embodiment, similar to Embodiment 1, the baby rocking device also includes a support base 1, a seat body 2, a drive mechanism 3, and a connecting mechanism 4. The support base 1 serves as the supporting body and can be supported on the ground. The connecting mechanism 4 is disposed between the seat body 2 and the support base 1. The seat body 2 serves to support the baby, and the main function of the connecting mechanism 4 is to limit the movement trajectory of the seat body 2 relative to the support base 1. When necessary, the connecting mechanism 4 can also provide some support for the seat body 2. The drive mechanism 3 is disposed on the support base 1. In particular, the seat body 2 is configured to be driven by the drive mechanism 3 to perform circular motion relative to the support base 1 in a vertical or inclined plane. The drive mechanism 3 can output power to the seat body 2, at which time the seat body 2 drives the connecting mechanism 4 to move simultaneously.

[0168] Thus, the baby rocking device of this embodiment can also solve the same technical problems as described in Embodiment 1 and achieve the same technical effects.

[0169] Additionally, see Figure 22 and Figure 23Similar to Embodiment 1, the connecting mechanism 4 includes a first link 41 and a second link 42, which are pivotally connected between the seat body 2 and the support base 1, respectively. Thus, under the driving action of the driving mechanism 3, the rotational trajectories of the first link 41 and the second link 42 restrict the movement trajectory of the seat body 2.

[0170] As is also preferred in Embodiment 1, the distance between the two pivot axes of the first link 41 is equal to the distance between the two pivot axes of the second link 42, and the distance between the pivot axis between the first link 41 and the seat body 2 and the pivot axis between the second link 42 and the seat body 2 is equal to the distance between the pivot axis between the first link 41 and the support base 1 and the pivot axis between the second link 42 and the support base 1.

[0171] As is preferred in Embodiment 1, the connecting mechanism 4 is provided in two sets, and the two sets of connecting mechanisms 4 are arranged opposite to each other to improve the stability of the seat body 2 during movement and avoid downward twisting under unilateral force; the connecting mechanism 4 is provided in two sets, that is, the first connecting rod 41 is provided in two sets, and the second connecting rod 42 is also provided in two sets.

[0172] Unlike Embodiment 1, but equally preferred as Embodiment 3 or 4, the drive mechanism 3 includes a motor 31, a worm 32, a worm wheel 33, a first pulley 34, a second pulley 35, and a belt 36. There are two worm wheels 33, which are arranged at intervals along the axial direction of the worm 32. The connection relationship of each component in the drive mechanism 3 can be referred to the relevant description in Embodiment 3 or 4.

[0173] In this embodiment, specifically, based on two worm gears 33, the first end of the first connecting rod 41 is fixedly connected to the rotating shaft of one of the worm gears 33, the second end of the first connecting rod 41 is pivotally connected to the seat body 2, the first end of the second connecting rod 42 is fixedly connected to the rotating shaft of the other worm gear 33, and the second end of the second connecting rod 42 is pivotally connected to the seat body 2.

[0174] Since both worm gears 33 are pivotally connected to the support base 1, and the first end of the first connecting rod 41 and the first end of the second connecting rod 42 are respectively fixed to the shafts of different worm gears 33, the first connecting rod 41 and one of the worm gears 33 share a shaft, and the second connecting rod 42 and the other worm gear 33 share a shaft, thereby realizing the pivotal connection between the first connecting rod 41 and the support base 1, and the pivotal connection between the second connecting rod 42 and the support base 1.

[0175] See Figure 23 and Figure 24The connecting mechanism 4 is provided in two sets. Preferably, the seat body 2 includes a mounting base 21 and a seat frame 22 connected to each other. The mounting base 21 supports the seat frame 22. The mounting base 21 includes two connecting frames 211. Each connecting frame 211 and a set of connecting mechanisms 4 are arranged in a one-to-one correspondence. The first ends of the two first connecting rods 41 are respectively fixedly connected to the two ends of the shaft of one of the worm gears 33. The second ends of the two first connecting rods 41 are respectively pivotally connected to different connecting frames 211. The first ends of the two second connecting rods 42 are respectively fixedly connected to the two ends of the shaft of the other worm gear 33. The second ends of the two second connecting rods 42 are respectively pivotally connected to different connecting frames 211. The first link 41 is located outside the worm gear 33, the second link 42 is located outside the worm gear 33, and the connecting frame 211 is located outside the first link 41 and the second link 42. A clearance space is formed between the two connecting frames 211. When the seat body 2 makes a circular motion, the worm gear 33, the first link 41 and the second link 42 can move relative to each other in the clearance space.

[0176] Specifically, with Figure 23 With the indicated direction as a reference, in the connecting mechanism 4 located on the back of the worm gear 33, the first end of the first connecting rod 41 is fixedly connected to the rear end of the rotating shaft of the worm gear 33 on the left side, so that the first connecting rod 41 is rotated relative to the support base 1 about the axis of the rotating shaft of the worm gear 33 on the left side. The second end of the first connecting rod 41 is pivotally connected to the left end of the connecting frame 211 located at the rear. The first end of the second connecting rod 42 is fixedly connected to the rear end of the rotating shaft of the worm gear 33 on the right side, so that the second connecting rod 42 is rotated relative to the support base 1 about the axis of the rotating shaft of the worm gear 33 on the right side. The second end of the second connecting rod 42 is pivotally connected to the connecting frame 211 located at the rear. At the right end; in the connecting mechanism 4 located in front of the worm gear 33, the first end of the first link 41 is fixedly connected to the front end of the rotating shaft of the worm gear 33 on the left side, so that the first link 41 is rotated relative to the support base 1 around the axis of the rotating shaft of the worm gear 33 on the left side. The second end of the first link 41 is pivotally connected to the left end of the connecting frame 211 located in front. The first end of the second link 42 is fixedly connected to the front end of the rotating shaft of the worm gear 33 on the right side, so that the second link 42 is rotated relative to the support base 1 around the axis of the rotating shaft of the worm gear 33 on the right side. The second end of the second link 42 is pivotally connected to the right end of the connecting frame 211 located in front.

[0177] It should be noted that in other preferred embodiments, when only one set of connecting mechanism 4 is provided, the arrangement of the first connecting rod 41 and the second connecting rod 42 in the connecting mechanism 4 can refer to the arrangement of embodiment 3. In this case, one end of the shaft of one worm gear 33 is fixedly connected to the first connecting rod 41, and one end of the shaft of the other worm gear 33 is fixedly connected to the second connecting rod 42.

[0178] Thus, compared to embodiments 1, 2, 3, 4, or 5, the baby rocking device in this embodiment employs a direct drive method combining two worm gears 33 with the connecting mechanism 4, forming two spaced-apart power points. This increases the driving force, and the overall structure is simpler with fewer parts, further reducing costs. Moreover, the dual connecting frame 211 and dual connecting mechanism 4 scheme avoids interference between structures, improves stability during movement, and prevents downward torsion under unilateral force.

[0179] It should be noted that for other structures not described, please refer to the relevant descriptions in Embodiments 1, 2, 3, 4, or 5, which will not be repeated here.

[0180] In this embodiment, for ease of understanding, the operation of the baby rocking device is as follows:

[0181] by Figure 22 and Figure 23 As shown, taking the highest point of the baby rocking device's circular motion as an example, at this time, the motor 31 starts to output power, the motor 31 drives the first pulley 34 to rotate, the first pulley 34 drives the second pulley 35 to rotate through the belt 36, the second pulley 35 drives the worm gear 32 to rotate synchronously, the worm gear 32 drives the two worm wheels 33 to rotate synchronously clockwise, the different worm wheels 33 respectively drive the two first connecting rods 41 and the two second connecting rods 42 to rotate synchronously, so that the two first connecting rods 41 rotate clockwise around the axis of one of the worm wheel 33, and the two second connecting rods 42 rotate clockwise around the axis of the other worm wheel 33, so that the seat body 2 makes a clockwise circular motion relative to the support base 1.

[0182] As can be seen from any of the embodiments 1 to 6 above, the baby rocking device of this utility model also has the following effects: under the action of the connecting mechanism 4 restricting the movement trajectory of the seat body 2, the circular motion of the seat body 2 can be achieved by driving only one motor 31, thereby realizing the lateral movement and lifting movement of the seat body 2. The structure is simple, the cost is low, and the noise is low. In addition, in some usage scenarios, the seat body 2 does not need to perform a complete circular motion as required, such as a semi-circular or arc-shaped motion. In this case, it can be achieved by the forward and reverse rotation of the motor 31; or by stopping the motor 31 to achieve a segmented arc motion, thereby forming a circular motion.

[0183] 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 baby rocking device, characterized in that, include: Support base, seat body, drive mechanism, and connecting mechanism, among which, The connecting mechanism is disposed between the seat body and the support base to limit the movement trajectory of the seat body, the driving mechanism is disposed on the support base, and the seat body is configured to be driven by the driving mechanism to perform circular motion relative to the support base in a vertical or inclined plane. The connecting mechanism includes a first link and a second link, which are pivotally connected between the seat body and the support base, respectively. The distance between the two pivot axes of the first link is equal to the distance between the two pivot axes of the second link, and the distance between the pivot axis between the first link and the seat body and the pivot axis between the second link and the seat body is equal to the distance between the pivot axis between the first link and the support base and the pivot axis between the second link and the support base. The seat body includes a mounting base and a seat frame connected together. The mounting base supports the seat frame, and the first connecting rod and the second connecting rod are respectively pivotally connected to the mounting base.

2. The baby rocking device according to claim 1, characterized in that, The connecting mechanism is provided in two sets and is arranged opposite to each other on the two opposite outer sides of the mounting base. The support base is provided with a plurality of first connecting columns, which are arranged in two groups opposite to each other. The two first connecting rods and the two second connecting rods are respectively pivotally connected to the inner side of different first connecting columns. When the driving mechanism drives the seat body to make a circular motion, the mounting base can move within the accommodating space enclosed by the plurality of first connecting columns.

3. The baby rocking device according to claim 2, characterized in that, The height of the mounting base is greater than the distance between the two pivot axes of the first link; and / or, the height of the mounting base is greater than the distance between the two pivot axes of the second link.

4. The baby rocking device according to claim 1, characterized in that, The seat frame is detachably connected to the top of the mounting base.

5. The baby rocking device according to claim 1, characterized in that, It also includes a transmission mechanism, which includes an eccentric rotating part and a connecting part. The eccentric rotating part is rotatably arranged relative to the support base about a first pivot axis. The driving mechanism drives the eccentric rotating part to rotate. The connecting part is connected to the seat body or the connecting mechanism, and the connecting part is pivotally connected to the eccentric rotating part about a second pivot axis. The distance between the first pivot axis and the second pivot axis is equal to the distance between the two pivot axes of the first connecting rod, and also equal to the distance between the two pivot axes of the second connecting rod.

6. The baby rocking device according to claim 5, characterized in that, The connecting part includes a third link and a fourth link, which are arranged at an angle. The first end of the third link and the first end of the fourth link are both pivotally connected to the eccentric rotating part around the second pivot axis. The second end of the third link is connected to the seat body or the first link, and the second end of the fourth link is connected to the seat body or the second link.

7. The baby rocking device according to claim 6, characterized in that, The second end of the third link and the first link of the connecting mechanism are pivotally connected to the seat body around the third pivot axis, and the second end of the fourth link and the second link of the connecting mechanism are pivotally connected to the seat body around the fourth pivot axis.

8. The baby rocking device according to claim 5, characterized in that, The driving mechanism includes a motor, a worm gear, and a worm wheel. The motor is connected to the worm gear via a transmission, and the worm wheel cooperates with the worm gear. The eccentric rotating part includes a rotating rod. The first end of the rotating rod is fixedly connected to the rotating shaft of the worm wheel, and the second end of the rotating rod is pivotally connected to the connecting part.

9. The baby rocking device according to claim 8, characterized in that, The worm gear is provided in one unit, and the transmission mechanism is provided in two sets and arranged opposite to each other on two opposite sides of the worm gear. The first ends of the two rotating rods are respectively fixedly connected to the two ends of the rotating shaft of the worm gear.

10. The baby rocking device according to claim 8, characterized in that, The drive mechanism further includes a first pulley, a second pulley, and a belt. The first pulley is mounted on the output shaft of the motor, the second pulley is mounted on the rotating shaft of the worm gear, and the belt is wound around the first pulley and the second pulley. The diameter of the first pulley is smaller than the diameter of the second pulley.

11. The baby rocking device according to claim 1, characterized in that, The driving mechanism includes a first driving mechanism and a second driving mechanism. The first link is configured to be driven by the first driving mechanism to perform a circular motion relative to the support base, and the second link is configured to be driven by the second driving mechanism to perform a circular motion relative to the support base.

12. The baby rocking device according to claim 1, characterized in that, It also includes a transmission mechanism, which includes a first transmission component and a second transmission component. The driving mechanism drives the first transmission component and the second transmission component to move. The first transmission component is connected to the first connecting rod and drives the first connecting rod to perform circular motion. The second transmission component is connected to the second connecting rod and drives the second connecting rod to perform circular motion.

13. The baby rocking device according to claim 8, characterized in that, The connecting mechanism is provided in a set, with the first connecting rod and the second connecting rod arranged diagonally opposite each other on two opposite sides of the mounting base.

14. The baby rocking device according to claim 13, characterized in that, The worm gear is provided in one unit, and the transmission mechanism is provided in two sets and arranged opposite to each other on two opposite sides of the worm gear. The rotating rods of the two transmission mechanisms are respectively fixedly connected to both ends of the rotating shaft of the worm gear.

15. The baby rocking device according to claim 13, characterized in that, The worm gear is provided in two sets, which are arranged at intervals along the axis of the worm. The transmission mechanism is provided in two sets and arranged opposite to each other on two opposite sides of the two worm gears. The rotating rods of different transmission mechanisms are respectively fixedly connected to the rotating shafts of different worm gears.

16. The baby rocking device according to claim 8, characterized in that, The worm gear is provided in two sets, which are arranged at intervals along the axis of the worm. The transmission mechanism is provided in four sets, which are arranged in pairs. The first end of the rotating rod of each pair of transmission mechanisms is fixedly connected to the two ends of the rotating shaft of the corresponding worm gear.

17. The baby rocking device according to any one of claims 14 to 16, characterized in that, The connecting part includes a third link, the first end of the third link is pivotally connected to the second end of the rotating rod, and the second end of the third link and the first link of the connecting mechanism are pivotally connected to the seat body around a third pivot axis, or the second end of the third link and the second link of the connecting mechanism are pivotally connected to the seat body around a fourth pivot axis.

18. The baby rocking device according to claim 1, characterized in that, The drive mechanism includes a motor, a worm gear, and a worm wheel. The motor is connected to the worm gear for transmission, and the worm wheel cooperates with the worm gear. It also includes a rotating rod, the first end of which is fixedly connected to the shaft of the worm wheel, and the second end of which is pivotally connected to the seat body.

19. The baby rocking device according to claim 18, characterized in that, The seat body also includes a swing element that supports the mounting base. The swing element includes a first part and a second part, the second part being connected to the first part and used to connect with the mounting base. The first connecting rod, the second connecting rod, and the rotating rod are all pivotally connected to the first part.

20. The baby rocking device according to claim 19, characterized in that, The first part includes at least a first segment, a second segment, and a third segment, which are integrally formed and located on the same plane. The first connecting rod is pivotally connected to the first segment or to the connection between the first segment and the third segment. The second connecting rod is pivotally connected to the third segment or to the connection between the second segment and the third segment. The rotating rod is pivotally connected to the second segment or to the connection between the first segment and the second segment.

21. The baby rocking device according to claim 19, characterized in that, There is one worm gear, two rotating rods, two swing pieces, and two sets of connecting mechanisms. The two rotating rods are respectively fixedly connected to the two ends of the rotating shaft of the worm gear. One rotating rod, one swing piece, and one set of connecting mechanisms are arranged in a one-to-one correspondence.

22. The baby rocking device according to claim 19, characterized in that, It also includes an auxiliary spring for providing an upward assist force, one end of which is connected to the pendulum and the other end of which is connected to the support base.

23. The baby rocking device according to claim 22, characterized in that, The support base is provided with at least two fifth connecting columns, and at least two auxiliary springs are provided. The two auxiliary springs are arranged in an inverted V-shape facing each other. One end of each of the two auxiliary springs is connected to the ornament, and the other end of each of the two auxiliary springs is connected to different fifth connecting columns.

24. The baby rocking device according to claim 1, characterized in that, The drive mechanism includes a motor, a worm gear, and two worm wheels. The motor is connected to the worm gear via a transmission. The two worm wheels are arranged at intervals along the axial direction of the worm gear and respectively cooperate with the worm gear. The first end of the first connecting rod is fixedly connected to the rotating shaft of one of the worm wheels, and the second end of the first connecting rod is pivotally connected to the seat body. The first end of the second connecting rod is fixedly connected to the rotating shaft of the other worm wheel, and the second end of the second connecting rod is pivotally connected to the seat body.

25. The baby rocking device according to claim 24, characterized in that, The mounting base includes two connecting frames, and the connecting mechanism is provided in two sets. One connecting frame and one set of connecting mechanisms are arranged in a one-to-one correspondence. The first ends of the two first connecting rods are respectively fixedly connected to the two ends of the shaft of one of the worm gears, and the second ends of the two first connecting rods are respectively pivotally connected to different connecting frames. The first ends of the two second connecting rods are respectively fixedly connected to the two ends of the shaft of the other worm gear, and the second ends of the two second connecting rods are respectively pivotally connected to different connecting frames.

Images