Infant rocking device

Abstract

Disclosed in the present invention is an infant rocking device, comprising: a support base, a seat body, a driving mechanism and a connecting mechanism, wherein the connecting mechanism is arranged between the seat body and the support base so as to limit a movement trajectory of the seat body; the driving mechanism is arranged on the support base; and the seat body is configured to be capable of being driven by the driving mechanism to make a circular motion in a vertical plane or an inclined surface relative to the support base. The infant rocking device provided in the present invention has a large movement trajectory, a simple structure and low production costs, and provides better entertainment and a better experience.

Description

Baby rocking device Technical Field

[0001] The present invention relates to the technical field of children's products, in particular to a baby rocking device. Background Art

[0002] For years, parents have relied on baby rockers and rocking chairs to comfort, soothe, and entertain their infants. Existing baby rocking chairs typically feature a reciprocating swing mechanism, where a swing arm drives the seat to swing back and forth. While the swing arm provides ample horizontal movement, it can only move slightly up and down relative to the ground, with extremely limited height adjustment. Furthermore, the rocking chairs are prone to jerking at extreme left and right or forward and backward positions, resulting in a poor user experience and limited entertainment.

[0003] Some prior art infant care devices with multi-drive structures are capable of achieving both horizontal and vertical movement along relatively large trajectories. For example, Chinese patent CN200980138791.1 discloses an infant care device that combines a horizontal reciprocating assembly with a vertical reciprocating assembly. Specifically, it utilizes two motors and two crank drive mechanisms, with a controller coordinating horizontal and vertical movement to achieve multiple, visually distinct movement trajectories. However, the device is prone to jerking at its extremes in different directions, and its structure is extremely complex, requiring significant material consumption and resulting in high production and maintenance costs.

[0004] For example, Chinese patent CN201310086301.6 discloses a baby swing device. A drive mechanism, via dual swing arms, drives the seat support to swing back and forth repeatedly. A lifting mechanism also drives the housing to move the drive mechanism and the seat support up and down. This is also a multi-drive structure. The drive mechanism operates at an adjustable frequency, and the swinging motion driven by the drive mechanism can be combined with the vertical movement of the housing to produce multiple programmable motion modes on a vertical plane, such as a "rainbow" motion mode, a horizontal or tilted sliding mode, a "circular" motion mode, and a "bouncing" motion mode. Similarly, the device is prone to jerking at the extremes of movement in different directions. Its structure is extremely complex, requiring high material consumption and resulting in high production and maintenance costs. Furthermore, the frequency of its swinging motion is directly affected by the length of the swing arms. To achieve a comfortable swing frequency, a longer swing arm is required, which increases the overall height of the baby swing device, hinders unpacking and transportation, and also affects its aesthetics.

[0005] Summary of the Invention

[0006] In order to overcome at least one of the defects of the above-mentioned prior art, the present invention provides a baby rocking device with a large moving track, a simple structure, a low production cost, and better entertainment and user experience.

[0007] The technical solution adopted by the present invention to solve the problem is:

[0008] A baby rocking device includes: a support base, a seat body, a driving mechanism, and a connecting mechanism, wherein:

[0009] The connecting mechanism is arranged between the seat body and the support base to limit the movement trajectory of the seat body. The driving mechanism is arranged on the support base. The seat body is configured to be driven by the driving mechanism and perform circular motion on a vertical plane or an inclined plane relative to the support base.

[0010] In the above scheme, a connecting mechanism is arranged between the seat body and the support base, and the movement trajectory of the seat body is limited by the connecting mechanism. Under the driving action of the driving mechanism, the seat body can make circular motion on a vertical plane or an inclined plane relative to the support base. Compared with the existing repeated swinging structure, the seat body of the baby rocking device has a larger lifting height and better entertainment. Compared with the existing multi-drive structure, its structure is simpler, consumes less materials, and has lower production and maintenance costs. On the other hand, by utilizing the characteristics of synchronous circular motion, the speed of the seat body in lateral movement and lifting movement alternates with each other, and there is no sense of frustration as a whole, and the movement is smooth, thereby obtaining a riding experience that cannot be achieved in the existing technology.

[0011] Furthermore, the connecting mechanism includes a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are respectively pivotally connected between the seat body and the support base, thereby limiting the movement trajectory of the seat body.

[0012] 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.

[0013] Furthermore, the seat body includes a mounting seat and a seat frame connected to each other, the mounting seat supports the seat frame, and the first connecting rod and the second connecting rod are respectively pivotally connected to the mounting seat.

[0014] Furthermore, the connecting mechanism comprises two groups, disposed oppositely on opposite outer sides of the mounting base. The support base is provided with a plurality of first connecting posts, which are arranged in two opposite groups. The two first connecting rods and the two second connecting rods are respectively pivotally connected to the inner sides of different first connecting posts. When the driving mechanism drives the seat body in a circular motion, the mounting base is able to move within the accommodation space enclosed by the plurality of first connecting posts. This avoids interference between the structures, improves stability during movement, and prevents downward twisting due to unilateral force. Furthermore, the space between the first connecting posts is fully utilized, which helps reduce the overall height of the product, thereby achieving a better overall effect.

[0015] Furthermore, the height of the mounting seat is greater than the distance between the two pivot axes of the first connecting rod; and / or the height of the mounting seat is greater than the distance between the two pivot axes of the second connecting rod.

[0016] Furthermore, the seat frame is detachably connected to the top of the mounting seat to facilitate disassembly, packaging and transportation.

[0017] Furthermore, the seat further includes a transmission mechanism comprising an eccentric rotating portion and a connecting portion. The eccentric rotating portion is rotatably arranged relative to the support base about a first pivot axis. A driving mechanism drives the eccentric rotating portion to rotate. The connecting portion is connected to the seat body or the connecting mechanism and is pivotally connected to the eccentric rotating portion 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 the second connecting rod. Thus, the driving mechanism only needs to continuously output power to the eccentric rotating portion in one direction. This means that the performance requirements for its motor are not high, and an ordinary motor can be directly used. There is no need to use a more expensive programmable control chip, resulting in a lower overall cost.

[0018] Furthermore, the connecting part includes a third link and a fourth link, and the third link and the fourth link 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 supporting strength of the connecting part.

[0019] Furthermore, 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, and the second end of the fourth link and the second link of the connecting mechanism are pivotally connected to the seat body around a fourth pivot axis. This simplifies the mounting structure of each link, saves some pivots, and facilitates the transmission of driving force, making the movement smoother.

[0020] Furthermore, the driving mechanism includes a motor, a worm, and a worm wheel. The motor is connected to the worm, and the worm wheel cooperates with the worm. 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.

[0021] Furthermore, the transmission mechanism is provided with two groups and is arranged on two opposite sides of the worm wheel. The first ends of the two rotating rods are respectively fixedly connected to the two ends of the rotating shaft of the worm wheel.

[0022] Furthermore, the driving mechanism also includes a first pulley, a second pulley, and a belt. The first pulley is installed on the output shaft of the motor, the second pulley is installed on the rotating shaft of the worm, and the belt is wound around the first pulley and the second pulley, wherein the diameter of the first pulley is smaller than the diameter of the second pulley.

[0023] Furthermore, the driving mechanism includes a first driving mechanism and a second driving mechanism, the first connecting rod is configured to be driven by the first driving mechanism to make a circular motion relative to the support base, and the second connecting rod is configured to be driven by the second driving mechanism to make a circular motion relative to the support base.

[0024] Furthermore, 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 to move and drives 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.

[0025] Furthermore, the connecting mechanism is provided with a group, wherein the first connecting rod and the second connecting rod are diagonally arranged on two opposite sides of the mounting base.

[0026] Furthermore, the worm wheel is provided with one, the transmission mechanism is provided with two groups and is relatively arranged on two opposite sides of the worm wheel, and the rotating rods of the two transmission mechanisms are respectively fixedly connected to the two ends of the rotating shaft of the worm wheel.

[0027] Furthermore, there are two worm wheels, which are arranged at intervals along the axis of the worm, and two groups of transmission mechanisms are arranged on opposite sides of the two worm wheels. The rotating rods of different transmission mechanisms are respectively fixedly connected to the rotating shafts of different worm wheels.

[0028] Furthermore, there are two worm wheels, which are arranged at intervals along the axis of the worm. There are four transmission mechanisms, which are arranged in pairs. The first ends of the rotating rods of each two transmission mechanisms are fixedly connected to the two ends of the rotating shaft of the corresponding worm wheel.

[0029] Furthermore, the connecting part includes a third connecting rod, the first end of the third connecting rod is pivotally connected to the second end of the rotating rod, the second end of the third connecting rod and the first connecting rod of the connecting mechanism are pivotally connected to the seat body around a third pivot axis, or the second end of the third connecting rod and the second connecting rod of the connecting mechanism are pivotally connected to the seat body around a fourth pivot axis.

[0030] Furthermore, the driving mechanism includes a motor, a worm, and a worm wheel. The motor is connected to the worm, and the worm wheel cooperates with the worm. 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 the rotating rod is pivotally connected to the seat body.

[0031] Furthermore, the seat body includes a connected ornament, a mounting seat and a seat frame, the ornament supports the mounting seat, the mounting seat supports the seat frame, the ornament includes a first part and a second part, the second part is connected to the first part, and the second part is used to connect with the mounting seat, and the first connecting rod, the second connecting rod and the rotating rod are all pivotally connected to the first part.

[0032] Furthermore, the first part includes at least a first section, a second section, and a third section. The first section, the second section, and the third section are integrally formed and are in the same plane. The first connecting rod is pivoted to the first section or pivoted to the connection between the first section and the third section. The second connecting rod is pivoted to the third section or pivoted to the connection between the second section and the third section. The rotating rod is pivoted to the second section or pivoted to the connection between the first section and the second section.

[0033] Furthermore, there is one worm wheel, two rotating rods, two pendulums, and two groups of connecting mechanisms. The two rotating rods are fixedly connected to the two ends of the rotating shaft of the worm wheel respectively. One rotating rod, one pendulum and one group of connecting mechanisms are arranged in a one-to-one correspondence.

[0034] Furthermore, it also includes an auxiliary spring for providing an auxiliary force for rising, one end of the auxiliary spring is connected to the pendulum, and the other end of the auxiliary spring is connected to the support base.

[0035] Furthermore, at least two fifth connecting columns are provided on the support base, and at least two auxiliary springs are provided. The two auxiliary springs are arranged opposite to each other in an inverted eight shape, wherein one end of the two auxiliary springs is respectively connected to the pendulum, and the other end of the two auxiliary springs is respectively connected to different fifth connecting columns.

[0036] Furthermore, the driving mechanism includes a motor, a worm, and two worm wheels. The motor is connected to the worm gear. 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 gear, and the second end of the second connecting rod is pivotally connected to the seat body.

[0037] Furthermore, the seat body includes a connected mounting base and a seat frame, the mounting base supports the seat frame, the mounting base includes two connecting frames, and the connecting mechanism is provided with two groups, one connecting frame and one group 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 rotating shaft of one of the worm gears, the second ends of the two first connecting rods are respectively pivoted to different connecting frames, the first ends of the two second connecting rods are respectively fixedly connected to the two ends of the rotating shaft of the other worm gear, and the second ends of the two second connecting rods are respectively pivoted to different connecting frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] FIG1 is a schematic structural diagram of a baby rocking device according to embodiment 1 of the present invention;

[0039] FIG2 is a partial enlarged view of portion A shown in FIG1 ;

[0040] FIG3 is a second structural diagram of the baby rocking device according to Example 1 of the present invention;

[0041] FIG4 is a partial enlarged view of portion B shown in FIG3 ;

[0042] FIG5 is a schematic diagram of the state where the baby rocking device according to embodiment 1 of the present invention moves to the rightmost side in a circular motion;

[0043] FIG6 is a schematic diagram of the state where the baby rocking device according to embodiment 1 of the present invention is in circular motion and reaches the lowest point;

[0044] FIG7 is a schematic diagram of the baby rocking device in the embodiment 1 of the present invention in the state of the circular motion to the leftmost side;

[0045] FIG8 is a schematic structural diagram of a baby rocking device according to Example 2 of the present invention;

[0046] FIG9 is a partial enlarged view of portion C shown in FIG8 ;

[0047] FIG10 is an exploded schematic diagram of a baby rocking device according to Example 2 of the present invention;

[0048] FIG11 is a schematic structural diagram of a baby rocking device according to Example 3 of the present invention;

[0049] FIG12 is a partial enlarged view of portion D shown in FIG11 ;

[0050] FIG13 is an exploded schematic diagram of a baby rocking device according to Example 3 of the present invention;

[0051] FIG14 is a schematic structural diagram of a baby rocking device according to Example 4 of the present invention;

[0052] FIG15 is a partial enlarged view of portion E shown in FIG14 ;

[0053] FIG16 is an exploded view of a baby rocking device according to Example 4 of the present invention;

[0054] FIG17 is a schematic structural diagram of a baby rocking device according to Example 5 of the present invention;

[0055] FIG18 is a partial enlarged view of portion F shown in FIG17 ;

[0056] FIG19 is a partial exploded view of the baby rocking device according to Example 5 of the present invention;

[0057] FIG20 is an exploded schematic diagram of a partial structure of the baby rocking device of Example 5 of the present invention after removing the seat body;

[0058] FIG21 is a schematic structural diagram of an ornament according to Example 5 of the present invention;

[0059] FIG22 is a schematic structural diagram of a baby rocking device according to Example 6 of the present invention;

[0060] FIG23 is a partial enlarged view of the G portion shown in FIG22;

[0061] FIG. 24 is an exploded schematic diagram of the baby rocking device according to Example 6 of the present invention.

[0062] The meanings of the reference numerals are as follows:

[0063] 1. Support base; 11. First connecting post; 12. Second connecting post; 13. Third connecting post; 14. Crossbar; 15. Fourth connecting post; 16. Fifth connecting post; 17. Lower mounting box; 18. Upper mounting box; 2. Seat body; 21. Mounting seat; 211. Connecting frame; 22. Seat frame; 23. Ornament; 231. First section; 2311. First section; 2312. Second section; 2313. Third section; 232. Second section; 3. Drive mechanism; 31. Motor; 32. Snail Rod; 33. Worm gear; 34. First pulley; 35. Second pulley; 36. 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 DESCRIPTION

[0064] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0065] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0067] Example 1

[0068] Referring to Figures 1 to 4, the present invention discloses a baby 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 can be supported on the ground as a bearing body, and the connecting mechanism 4 is arranged between the seat body 2 and the support base 1. The seat body 2 is used 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 certain support for the seat body 2. The drive mechanism 3 is arranged on the support base 1. In particular, the seat body 2 is configured to be driven by the drive mechanism 3 and perform circular motion relative to the support base 1 on a vertical plane or an inclined plane. Among them, the drive mechanism 3 can output power to act on the seat body 2, in which case the seat body 2 drives the connecting mechanism 4 to move at the same time; the drive mechanism 3 can also output power to act on the connecting mechanism 4, in which case the connecting mechanism 4 drives the seat body 2 to move at the same time.

[0069] It should be noted that, as shown in Figures 1, 5, 6 and 7, the circular motion on the vertical plane refers to the movement trajectory of the seat body 2 being circular, and including simultaneous lifting and lateral movements. The seat body 2 is restricted and affected by the connecting mechanism 4, and the circular motion of the seat body 2 corresponds to the circular motion of the connecting mechanism 4. Referring to Figure 1 and taking the direction shown in Figure 1 as a reference example, at this time, when the baby is sitting on the seat body 2, the face can face forward and upward or forward. Under the driving action of the driving mechanism 3, the seat body 2 is driven by or restricted by the circular motion of the connecting mechanism 4 and simultaneously performs lifting and left and right movements, that is, the surface (vertical surface) where the movement trajectory of the seat body 2 is located is perpendicular to the sitting orientation surface. Of course, in other examples, based on different design needs or usage needs, when the baby sits on the seat body 2 with his face facing forward and upward or forward, under the driving action of the driving mechanism 3, the seat body 2 is driven by or restricted by the circular motion of the connecting mechanism 4 and moves up and down and forward and backward at the same time, that is, the surface (vertical surface) where the movement trajectory of the seat body 2 is located is changed to be parallel to the sitting direction surface.

[0070] Of course, in other embodiments, the seat body 2 can also be configured to perform circular motion on an inclined surface relative to the support base 1. 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 lifting movement. The surface (inclined surface) on which the movement trajectory of the seat body 2 is located can also be perpendicular or parallel to the seating orientation surface. 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 be described in detail based on the seat body 2 performing circular motion on a vertical plane.

[0071] It should be noted that the baby can also lie on the seat body 2. At this time, the baby's face can face upwards. The aforementioned sitting facing surface is the surface where the baby's body faces when lying down.

[0072] Therefore, the above invention limits the motion trajectory of the seat body 2 relative to the support 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 support base 1 on the vertical plane or the inclined plane. Compared with the existing repeated swinging structure, the seat body 2 of the baby rocking device has a larger lifting height and better entertainment. Compared with the existing multi-drive structure, its structure is simpler, consumes less materials, and has lower production and maintenance costs. On the other hand, by utilizing the characteristics of synchronous circular motion, the speed of the seat body 2 in lateral movement and lifting movement alternates with each other, and there is no sense of frustration as a whole, and the movement is smooth, thereby obtaining a riding experience that cannot be achieved in the existing technology. In this way, a baby rocking device with a large moving trajectory, simple structure, low cost, and better entertainment and experience is obtained.

[0073] 1 and 2 , in this embodiment, the connecting mechanism 4 includes a first link 41 and a second link 42, and the first link 41 and the second link 42 are respectively pivotally connected between the seat body 2 and the support base 1. In this way, 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.

[0074] 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.

[0075] 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. At this time, 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 that: on the surface where the moving trajectory of the connecting mechanism 4 is located, the line connecting the third pivot axis 300 and the fourth pivot axis 400, the line connecting the fourth pivot axis 400 and the fifth pivot axis 500, the line connecting the fifth pivot axis 500 and the sixth pivot axis 600, and the line connecting the sixth pivot axis 600 and the third pivot axis 300 form a parallelogram.

[0076] In this way, under the driving action of the driving 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 moving trajectory of the third pivot axis 300 is the same as the moving trajectory of the fourth pivot axis 400, thereby making the moving trajectory of the seat body 2 the same as the moving trajectory of the third pivot axis 300 and the moving trajectory of the fourth pivot axis 400, that is, the moving trajectory of the seat body 2 is also circular, thereby keeping the seating orientation surface angle of the seat body 2 unchanged.

[0077] The baby rocking device may further include a transmission mechanism 5, which may be disposed 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 portion 51 and a connecting portion 52. The eccentric rotating portion 51 is rotatably disposed relative to the support base 1 about a first pivot axis 100. The connecting portion 52 is connected to the seat body 2 or the connecting mechanism 4 and is pivotally connected to the eccentric rotating portion 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 the second connecting rod 42. During use, the drive mechanism 3 drives the eccentric rotating portion 51 to rotate, and the eccentric rotating portion 51, through the connecting portion 52, drives the connecting mechanism 4 and the seat body 2 to perform circular motion relative to the support base 1.

[0078] In the prior art, to reduce the sense of jerkiness, high performance requirements are placed on the motor in the drive mechanism. The motor used must be a servo motor, and the jerkiness at the extremes of movement must be reduced by controlling the servo motor's speed. Furthermore, expensive programmable control chips are required to control the repetitive motion of the dual drive mechanisms to achieve a "circular" motion pattern, which undoubtedly significantly increases production costs. In the present invention, however, drive mechanism 3 only needs to continuously output power in one direction, meaning that the performance requirements for its motor are not high. An ordinary motor can be used directly, and there is no need for expensive programmable control chips, resulting in lower overall costs.

[0079] Referring to Figures 1 and 3, in this embodiment, preferably, the drive mechanism 3 and the seat body 2 are connected through a transmission mechanism 5. When in use, the drive mechanism 3 drives the transmission mechanism 5 to operate, and the transmission mechanism 5 drives the seat body 2 to perform circular motion under the restriction of the connecting mechanism 4.

[0080] In other embodiments, the driving mechanism 3 can also be connected to the connecting mechanism 4 through a transmission mechanism 5. When in use, the driving 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 perform circular motion.

[0081] In this embodiment, specifically, the seat body 2 includes a mounting base 21 and a seat frame 22 connected to each other, and the mounting base 21 supports 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. In this way, the various components are connected through the mounting base 21, so that the acting force is concentrated on the mounting base 21. It is only necessary to strengthen the strength of the mounting base 21 to facilitate processing and production. Preferably, the seat frame 22 is detachably connected to the top of the mounting base 21. In this way, the seat frame 22 can be removed during packaging to facilitate disassembly, packaging, and transportation. At this time, the mounting base 21 can be integrated with the drive mechanism 3, the connecting mechanism 4, and the transmission mechanism 5 and installed on the support base 1.

[0082] 2 and 4 , in the present embodiment, two groups of connecting mechanisms 4 are provided, and the two groups of connecting mechanisms 4 are arranged opposite to each other and are respectively provided on two opposite outer sides of the mounting base 21 to improve the stability of the seat body 2 during movement and avoid unilateral force and downward twisting; the connecting mechanism 4 is provided with two groups, that is, two first connecting rods 41 are provided, and two second connecting rods 42 are also provided. A plurality of first connecting columns 11 are provided on the support base 1, and the plurality of first connecting columns 11 are divided into two groups and arranged opposite to each other. The two first connecting columns 11 of each group are respectively 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 respectively pivotally connected to the inner sides of different first connecting columns 11. In particular, when the driving mechanism 3 drives the seat body 2 to perform a circular motion, the mounting base 21 can move within the accommodation space surrounded by the plurality of first connecting columns 11.

[0083] Specifically, with the direction shown in Figure 2 as a reference, the first connecting rod 41 and the second connecting rod 42 of the same group are arranged at intervals along the left-right direction, wherein the first connecting rod 41 and the second connecting rod 42 of one group are pivotally connected to the front side of the mounting seat 21, and the first connecting rod 41 and the second connecting rod 42 of the other group are pivotally connected to the rear side of the mounting seat 21. The first connecting columns 11 of the same group are also arranged at intervals along the left-right direction. Under the driving action of the driving mechanism 3, the mounting seat 21 can make circular motion around the pivot axis between the first connecting rod 41 and the first connecting column 11 and the pivot axis between the second connecting rod 42 and the first connecting column 11. Part of the moving trajectory of the mounting seat 21 is located in the accommodating space surrounded by multiple first connecting columns 11.

[0084] In this way, the interference problem between structures is avoided, the stability during movement is improved and the downward twisting due to unilateral force is avoided, and the space between the first connecting columns 11 is fully utilized, which is conducive to reducing the overall height of the product to achieve a better overall effect.

[0085] It should be noted that the number of first connecting columns 11 can be changed 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, the same group can have three first connecting columns 11. The number of first connecting columns 11 can also be changed according to the number of connecting rods pivoted to a single first connecting column 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 column 11, there can be only two first connecting columns 11. The width of the first connecting column 11 needs to be changed accordingly to accommodate the gap between the first connecting rod 41 and the second connecting rod 42, or a cross column needs to be added to the first connecting column 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 columns 11.

[0086] 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 a protective cover is installed to cover the first connecting column 11, the seat frame 22 mounted on the mounting base 21 will not collide with the protective cover during movement.

[0087] It should be noted that in other preferred embodiments, the connecting mechanism 4 can also adopt other structures to limit the circular movement trajectory of the seat body 2, such as adopting a matching structure of an annular groove and multiple sliders or pulleys, etc. The connecting mechanism 4 is not limited here.

[0088] 1 and 2 , in this embodiment, two transmission mechanisms 5 are provided, and the two transmission mechanisms 5 are respectively arranged on two opposite sides of the seat body 2, and in particular, on two opposite sides of the mounting base 21, to ensure that the driving force exerted on the seat body 2 is relatively uniform and stable; that is, two eccentric rotating parts 51 are provided, and two connecting parts 52 are also provided. At this time, the driving mechanism 3 synchronously drives the two eccentric rotating parts 51 to rotate in a circle around the first pivot axis 100, and the two eccentric rotating parts 51 drive the connecting part 52 and drive the seat body 2 to perform a synchronous circular motion.

[0089] Specifically, 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 is also equal to the distance between the two pivot axes of the second connecting rod 42, that is: the distance between the first pivot axis 100 and the second pivot axis 200 is equal to the distance between the third pivot axis 300 and the fifth pivot axis 500, which is equal to the distance between the fourth pivot axis 400 and the sixth pivot axis 600. In addition, the distance between the first pivot axis 100 and the fifth pivot axis 500 is equal to the distance between the second pivot axis 200 and the third pivot axis 300, and the distance between the first pivot axis 100 and the sixth pivot axis 600 is equal to the distance between the second pivot axis 200 and the fourth pivot axis 400. In this way, when the seat body 2 is performing circular motion, 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 to avoid self-locking.

[0090] In this embodiment, preferably, the connecting portion 52 includes a third link 521 and a fourth link 522, and the third link 521 and the fourth link 522 are arranged at an angle, and 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 portion 51 around the second pivot axis 200, and 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. In this way, the third link 521, the fourth link 522 and the seat body 2 form an angle support structure with each other, thereby strengthening the overall support strength of the connecting portion 52.

[0091] It can be understood that when the connecting part 52 is connected to the connecting mechanism 4, the second end of the third connecting rod 521 and the second end of the fourth connecting rod 522 will be connected to the connecting mechanism 4 respectively. Specifically, the second end of the third connecting rod 521 will be connected to the first connecting rod 41, and the second end of the fourth connecting rod 522 will be connected to the second connecting rod 42.

[0092] Specifically, the second end of the third link 521 and the first link 41 are pivotally connected to the seat body 2 about 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 about the fourth pivot axis 400. This means that the third link 521 and the first link 41 share a pivot axis, and the fourth link 522 and the second link 42 also share a pivot axis. This simplifies the installation structure and saves some pivot axes. Furthermore, 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. This facilitates the transmission of the driving force and makes its movement smoother.

[0093] Specifically, the second end of the third link 521 and the first link 41 are pivotally connected to the outer side of the mounting seat 21 through the same pivot, and the second end of the fourth link 522 and the second link 42 are pivotally connected to the outer side of the mounting seat 21 through the same pivot.

[0094] In other embodiments, the connecting portion 52 may also be a single-rod structure, that is, the connecting portion 52 includes a vertical rod, the upper end of the vertical rod is connected to the seat body 2, and the lower end of the vertical rod is pivotally connected to the eccentric rotating portion 51, which can also achieve the purpose of utilizing the connecting portion 52 to transmit the driving force; or, the connecting portion 52 may also be other structures that can transmit the rotational driving force of the eccentric rotating portion 51 to the seat body 2, and the specific structure of the connecting portion 52 is not limited here.

[0095] 2 and 4 , in this embodiment, the driving 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 . Among them, the first pulley 34, the second pulley 35, and the belt 36 constitute a transmission component to connect between the motor 31 and the worm 32. Specifically, the first pulley 34 is installed on the output shaft of the motor 31, the second pulley 35 is installed on the rotating shaft of the worm 32, and the belt 36 is wound around the first pulley 34 and the second pulley 35, so as to realize the transmission connection between the motor 31 and the worm 32. In particular, the diameter of the first pulley 34 is smaller than the diameter of the second pulley 35; the worm gear 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 gear 33. At this time, the first pivot axis 100 is colinear with the axis of the rotating shaft of the worm gear 33, and the rotating rod 511 rotates with the rotation of the worm gear 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. In this way, the worm gear structure is used to achieve power output, 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, thereby improving safety.

[0096] It should be noted that the transmission connection between the motor 31 and the worm 32 can also be achieved through other methods, for example: the motor 31 and the worm 32 are connected through a coupling, or the motor 31 and the worm 32 can also be connected through a gear reduction box. The transmission connection method between the motor 31 and the worm 32 is not limited here.

[0097] Specifically, two second connecting columns 12 and two third connecting columns 13 are provided on the support base 1, and a cross bar 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 in the accommodating space surrounded by multiple first connecting columns 11 to further make full use of the space between the first connecting columns 11, wherein the motor 31 is installed on the cross bar 14, the worm gear 33 is rotatably installed between the two second connecting columns 12, and the worm 32 is rotatably installed between the two third connecting columns 13, the rotation axis of the worm gear 33 is perpendicular to the surface of the circumferential motion of the seat body 2, and the rotation axis of the worm 32 is parallel to the surface of the circumferential motion of the seat body 2.

[0098] Preferably, the two transmission mechanisms 5 are further disposed on opposite sides of the worm gear 33, with the first ends of the two rotating rods 511 fixedly connected to the ends of the rotating shaft of the worm gear 33, respectively. This ensures that the ends of the rotating shaft of the worm gear 33 are evenly stressed, thereby extending its overall service life. Specifically, the rotating rods 511 are located outside the second connecting column 12 to avoid interference.

[0099] In other embodiments, the eccentric rotating part 51 can also be a pin eccentrically arranged on one side of the worm gear 33, and the connecting part 52 is pivotally connected to the pin. The pin can also make circular motion as the worm gear 33 rotates. At this time, the pin can rotate around the axis of the worm gear 33 rotating shaft relative to the support base 1, that is, the first pivot axis 100 is also colinear with the axis of the worm gear 33 rotating shaft. 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 can 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.

[0100] In other preferred embodiments, the driving method for the first connecting rod 41 and the second connecting rod 42 can also be: (1) the transmission mechanism 5 includes a first transmission component and a second transmission component, the driving mechanism 3 drives the first transmission component to move and drives the second transmission component to move, the first transmission component is connected to the first connecting rod 41 and drives the first connecting rod 41 to make a circular motion, and the second transmission component is connected to the second connecting rod 42 and drives the second connecting rod 42 to make a circular motion, wherein the first transmission component and the first connecting rod 41, and the second transmission component and the second connecting rod 42 can be gear transmission or swing arm transmission; (2) the driving mechanism 3 includes a first driving mechanism and a second driving mechanism, the first driving mechanism is connected to the first connecting rod 41 for transmission and drives the first connecting rod 41 to make a circular motion, and the second driving mechanism is connected to the second connecting rod 42 for transmission and drives the second connecting rod 42 to make a circular motion. It should be noted that in these two solutions, the rotational speed of the first connecting rod 41 making a circular motion relative to the support base 1 is also the same as the rotational speed of the second connecting rod 42 making a circular motion relative to the support base 1.

[0101] In this embodiment, for ease of understanding, the working process of the present invention is as follows:

[0102] As shown in FIG1 , the circumferential motion of the baby rocking device to the highest point is taken as an example. At this time, the motor 31 starts to be energized 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, the worm wheel 33 drives the rotating rod 511 to rotate synchronously, so that the second end of the rotating rod 511 performs a circular motion around the axis of the worm wheel 33 rotating shaft (that is, the first pivot axis 100), and the second end of the rotating rod 511 drives the third connecting rod 521 and the fourth connecting rod 522 clockwise. The needle moves, and the third link 521 and the fourth link 522 drive the mounting base 21 to move synchronously, so that the first link 41 rotates clockwise around the pivot axis (i.e., the fifth pivot axis 500) between it and the first connecting column 11, and the second link 42 rotates clockwise around the pivot axis (i.e., the sixth pivot axis 600) between it and the first connecting column 11, thereby causing the seat body 2 to make a clockwise circular motion relative to the supporting base 1. During this movement, the baby rocking device successively goes through the states shown in Figures 5, 6, and 7 and then returns to the state shown in Figure 1, and then maintains the cycle as the motor 31 continues to output power.

[0103] Example 2

[0104] 8 to 10 , this embodiment also discloses a baby rocking device. The difference between this embodiment and embodiment 1 lies in the different number of connecting mechanisms 4 , the different number of connecting rods of the connecting portion 52 , and the different number of corresponding first connecting columns 11 .

[0105] Referring to Figures 9 and 10 , in this embodiment, the connecting mechanism 4 similarly includes a first connecting rod 41 and a second connecting rod 42, each pivotally connected between the seat body 2 and the support base 1. However, only one connecting mechanism 4 is provided, and accordingly, the first connecting rod 41 and the second connecting rod 42 are diagonally arranged on opposite sides of the mounting base 21. Compared to Example 1, this embodiment has only one first connecting rod 41 and one second connecting rod 42. This diagonal arrangement of the first connecting rod 41 and the second connecting rod 42 facilitates structural simplification and cost savings while ensuring stability.

[0106] The term "diagonally opposed" 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 are also spaced apart in a direction perpendicular to the fifth pivot axis 500 or the sixth pivot axis 600. For example, with reference to the direction shown in FIG9 , a specific example may be that the first link 41 is located at the left rear side of the mounting base 21, and the second link 42 is located at the right front side of the mounting base 21.

[0107] Based on the number and arrangement of the above-mentioned first connecting rods 41 and the second connecting rods 42, two first connecting columns 11 are provided on the support base 1, and the two first connecting columns 11 are also arranged diagonally opposite to each other, wherein one first connecting column 11 and the first connecting rod 41 are positioned correspondingly and pivotally connected, wherein the other first connecting column 11 and the second connecting rod 42 are positioned correspondingly and pivotally connected. It is also preferred that the first connecting rod 41 and the second connecting rod 42 are respectively pivotally connected to the inner sides of different first connecting columns 11, and when the driving mechanism 3 drives the seat body 2 to perform a circular motion, the mounting seat 21 can move in the accommodating space between the two first connecting columns 11.

[0108] 9 and 10 , in this embodiment, the specific structure of the driving mechanism 3 may refer to the relevant description in Example 1, wherein the worm gear 33 is also provided with one; and the transmission mechanism 5 is also provided with two groups and is relatively arranged on two opposite sides of the worm gear 33. Each group of transmission mechanisms 5 also includes an eccentric rotating portion 51 and a connecting portion 52. The eccentric rotating portion 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.

[0109] It is understandable that the installation method of the motor 31 can also adopt the solution shown in Example 3, or other known solutions, and the installation method of the motor 31 is not limited here.

[0110] Differently, the connecting portion 52 includes only a third link 521. The third link 521 is preferably arranged at an angle. The first end of the third link 521 is pivotally connected to the second end of the rotating rod 511, and 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 about the third pivot axis 300. Alternatively, 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 about the fourth pivot axis 400. In other words, based on the presence 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 about the third pivot axis 300, while 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 about the fourth pivot axis 400.

[0111] Of course, according to design requirements, the third connecting rod 521 can also be vertically arranged or horizontally arranged, and the arrangement direction of the third connecting rod 521 is not limited here. In addition, the second end of the third connecting rod 521 can also be fixedly connected relative to the seat body 2.

[0112] Specifically, in conjunction with Figures 9 and 10, and with the direction shown in Figure 9 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, and the first pivot axis 100 is colinear with the axis of the rotating shaft of the worm gear 33, so that the rotating rod 511 is rotatably arranged 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, and the second end of the third connecting rod 521 and the first connecting rod 41 are pivotally connected around the third pivot axis 30 0 is pivoted to the left side of the mounting base 21; 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, and the first pivot axis 100 is colinear with the axis of the rotating shaft of the worm gear 33, so that the rotating rod 511 is rotatable relative to the support base 1 around the first pivot axis 100, and the first end of the third connecting rod 521 is pivoted to the second end of the rotating rod 511 around the second pivot axis 200, and the second end of the third connecting rod 521 and the second connecting rod 42 are pivoted to the right side of the mounting base 21 around the fourth pivot axis 400.

[0113] Thus, compared with Example 1, in the baby rocking device of this embodiment, only one first connecting rod 41, one second connecting rod 42, two rotating rods 511, two third connecting rods 521 and two first connecting columns 11 are required as a whole, thereby saving one first connecting rod 41, one second connecting rod 42, two fourth connecting rods 522 and two first connecting columns 11. On the basis of meeting the stability, the overall structure is relatively simple, with fewer parts and low cost.

[0114] It is understandable that, as described in Example 1, the eccentric rotating portion 51 may also be other structures capable of outputting a rotational driving force to the connecting portion 52 , and the specific structure of the eccentric rotating portion 51 is not limited herein.

[0115] It should be noted that for other structures not described, please refer to the relevant description in Example 1 for details, and will not be repeated here.

[0116] In this embodiment, for ease of understanding, the working process of the baby rocking device of this embodiment is as follows:

[0117] As shown in Figures 8 and 9, the circumferential motion of the baby rocking device to the lowest point is taken as an example. At this time, the motor 31 starts to be energized 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 rotating shaft (that is, the first The pivot axis 100) makes a circular motion, the second end of the rotating rod 511 drives the third connecting rod 521 to move clockwise, and the third connecting rod 521 drives the mounting base 21 to move synchronously, so that the first connecting rod 41 rotates clockwise around the pivot axis (i.e., the fifth pivot axis 500) between it and the first connecting column 11, and the second connecting rod 42 rotates clockwise around the pivot axis (i.e., the sixth pivot axis 600) between it and the first connecting column 11, thereby causing the seat body 2 to make a clockwise circular motion relative to the support base 1.

[0118] Example 3

[0119] 11 to 13 , this embodiment also discloses a baby rocking device. The difference between this embodiment and embodiment 2 is that two worm gears 33 are provided, and each worm gear 33 drives a group of transmission mechanisms 5 .

[0120] In this embodiment, similar to Embodiment 2, only one connecting mechanism 4 is provided. The 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 arranged on opposite sides of the mounting base 21. Two transmission mechanisms 5 are also provided. Each transmission mechanism 5 also includes an eccentric rotating portion 51 and a connecting portion 52. The eccentric rotating portion 51 also includes a transmission rod, and the connecting portion 52 also includes only a third connecting rod 521. However, two worm gears 33 are provided. The two worm gears 33 are spaced apart along the axis of the worm gear 32. The two transmission mechanisms 5 are arranged on opposite sides of the two worm gears 33. The rotating rods 511 of the different transmission mechanisms 5 are respectively fixedly connected to the rotating shafts of different worm gears 33.

[0121] Specifically, in combination with Figures 11 and 12, and with the direction shown in Figure 12 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, so that the rotating rod 511 is rotatable relative to the support base 1 around the axis of the rotating shaft of the worm gear 33 on the left, and the first end of the third connecting rod 521 is pivoted to the second end of the rotating rod 511, and the second end of the third connecting rod 521 and the first connecting rod 41 are pivoted to the left side of the mounting seat 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, so that the rotating rod 511 is rotatable relative to the support base 1 around the axis of the rotating shaft of the worm gear 33 on the right, and the first end of the third connecting rod 521 is pivoted to the second end of the rotating rod 511, and the second end of the third connecting rod 521 and the second connecting rod 42 are pivoted to the right side of the mounting seat 21 around the fourth pivot axis 400.

[0122] Thus, compared to the first or second embodiment, the baby rocking device of this embodiment adopts a driving mode of a double worm gear 33 to form two power points arranged at intervals, which can increase the driving force.

[0123] It is understandable that, as described in Example 1, in other embodiments, the eccentric rotating part 51 can also be a pin eccentrically arranged on one side of the worm gear 33, and the connecting part 52 is pivotally connected to the pin. The pin can also make circular motion as the worm gear 33 rotates. At this time, the pin can rotate around the axis of the worm gear 33 shaft relative to the support base 1, that is, the first pivot axis 100 is also colinear with the axis of the worm gear 33 shaft. Alternatively, the eccentric rotating part 51 can 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.

[0124] Referring to Figure 12 and taking the direction shown in Figure 12 as a reference, it can be understood that since two worm gears 33 and two sets of transmission mechanisms 5 are used, and the two worm gears 33 are arranged at intervals along the axial direction of the worm 32, therefore, according to the definition of the first pivot axis 100 and the second pivot axis 200 in Example 1, there will be two parallel first pivot axes 100 and two parallel second pivot axes 200. In order to avoid ambiguity, it is defined here that the axis of the rotating shaft of the worm gear 33 on the right is the first pivot axis 100, the pivot axis of the rotating rod on the right and the third connecting rod on the right is the second pivot axis 200, the axis of the rotating shaft of the worm gear 33 on the left is the seventh pivot axis, and the pivot axis of the rotating rod on the left and the third connecting rod on the left is the eighth pivot axis.

[0125] In addition, referring to FIG. 12 and FIG. 13 , another difference is that a fourth connecting column 15 is provided on the support base 1 , and the motor 31 is mounted on the fourth connecting column 15 .

[0126] It should be noted that for other structures not described, please refer to the relevant description in Example 1 or 2 for details, and will not be repeated here.

[0127] In this embodiment, for ease of understanding, the working process of the baby rocking device of this embodiment is as follows:

[0128] As shown in Figures 11 and 12, the circular motion of the baby rocking device to the lowest point is taken as an example. At this time, the motor 31 starts to be energized 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 two worm wheels 33 to rotate synchronously clockwise, and different worm wheels 33 respectively drive different rotating rods 511 to rotate synchronously, so that the second ends of different rotating rods 511 respectively rotate around The axes of the rotating shafts of different worm gears 33 make circular motions, and the second end of the rotating rod 511 drives the third connecting rod 521 to move clockwise, and the third connecting rod 521 drives the mounting base 21 to move synchronously, so that the first connecting rod 41 rotates clockwise around the pivot axis between it and the first connecting column 11 (that is, the fifth pivot axis 500), and the second connecting rod 42 rotates clockwise around the pivot axis between it and the first connecting column 11 (that is, the sixth pivot axis 600), thereby causing the seat body 2 to make clockwise circular motion relative to the support base 1.

[0129] Example 4

[0130] 14 to 16 , this embodiment also discloses a baby rocking device. The difference between this embodiment and embodiment 3 is that two connecting mechanisms 4 are provided, four transmission mechanisms 5 are provided, and each worm gear 33 drives two transmission mechanisms 5 respectively.

[0131] This embodiment combines the solutions of embodiment 1 and embodiment 3, and has the advantages of embodiment 1 and embodiment 3: it avoids the downward twisting of the force on a single corner and forms two spaced power points to increase the driving force.

[0132] In this embodiment, similar to Example 1, two groups of connecting mechanisms 4 are provided, and the two groups of connecting mechanisms 4 are arranged opposite to each other and are respectively arranged on two opposite sides of the mounting seat 21 to improve the stability of the seat body 2 during movement and avoid unilateral force downward twisting; the connecting mechanism 4 is provided with two groups, that is, two first connecting rods 41 are provided, and two second connecting rods 42 are also provided. A plurality of first connecting columns 11 are provided on the support base 1, and the plurality of first connecting columns 11 are divided into two groups and arranged opposite to each other. The two first connecting columns 11 of each group are respectively 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 respectively pivotally connected to the inner sides of different first connecting columns 11. In particular, when the driving mechanism 3 drives the seat body 2 to perform a circular motion, the mounting seat 21 can move in the accommodation space surrounded by the plurality of first connecting columns 11.

[0133] In this embodiment, similar to Embodiment 3, two worm gears 33 are provided, spaced apart along the axis of the worm 32. Each worm gear 33 drives at least one transmission mechanism 5. Each transmission mechanism 5 also includes an eccentric rotating portion 51 and a connecting portion 52. The eccentric rotating portion 51 also includes a transmission rod, and the connecting portion 52 also includes only a third connecting rod 521. However, four transmission mechanisms 5 are provided, arranged in pairs. The first ends of the rotating rods 511 of each two transmission mechanisms 5 are fixedly connected to the ends of the rotating shaft of a corresponding worm gear 33.

[0134] Specifically, in combination with Figures 14 and 15, and with the direction shown in Figure 15 as a reference, in a group 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, so that the rotating rod 511 is rotatable relative to the support base 1 around the axis of the rotating shaft of the worm gear 33 on the left, and the first end of the third link 521 is pivotally connected to the second end of the rotating rod 511, and the second end of the third link 521 and the first link 41 located at the left rear are pivotally connected to the left rear of the mounting base 21 around the third pivot axis 300; in a group 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, so that the rotating rod 511 is rotatable relative to the support base 1 around the axis of the rotating shaft of the worm gear 33 on the left, and the first end of the third link 521 is pivotally connected to the second end of the rotating rod 511, and the second end of the third link 521 and the first link 41 located at the left front are pivotally connected to the third pivot axis 300 The first end of the third link 521 is pivoted to the second end of the rotating rod 511, and the second end of the third link 521 and the second link 42 located at the right rear are pivoted to the right rear side of the mounting seat 21 around the fourth pivot axis 400; in the first group of transmission mechanisms 5 located at the right 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 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, and the first end of the third link 521 is pivoted to the second end of the rotating rod 511, and the second end of the third link 521 and the second link 42 located at the right front are pivoted to the right front side of the mounting seat 21 around the fourth pivot axis 400.

[0135] Thus, compared with Examples 1, 2 or 3, the baby rocking device of this embodiment adopts a driving mode of a double worm gear 33 combined with four sets of transmission mechanisms 5 and two sets of connecting mechanisms 4, which improves the stability during movement and avoids unilateral downward twisting due to force, and makes full use of the space between the first connecting columns 11, which is conducive to reducing the overall height of the product to achieve a better comprehensive effect, and also forms two spaced power points to increase the driving force.

[0136] It is understandable that, as described in Example 1, the eccentric rotating portion 51 may also be other structures capable of outputting a rotational driving force to the connecting portion 52 , and the specific structure of the eccentric rotating portion 51 is not limited herein.

[0137] Referring to Figure 15 and taking the direction shown in Figure 15 as a reference, it can be understood that since two worm gears 33 and four sets of transmission mechanisms 5 are used, and the two worm gears 33 are arranged at intervals along the axial direction of the worm 32, therefore, according to the definition of the first pivot axis 100 and the second pivot axis 200 in Example 1, there will be two parallel first pivot axes 100 and two parallel second pivot axes 200. In order to avoid ambiguity, it is defined here that the axis of the rotating shaft of the worm gear 33 on the right is the first pivot axis 100, the pivot axis of the rotating rod on the right and the third connecting rod on the right is the second pivot axis 200, the axis of the rotating shaft of the worm gear 33 on the left is the seventh pivot axis, and the pivot axis of the rotating rod on the left and the third connecting rod on the left is the eighth pivot axis.

[0138] It should be noted that for other structures not described, please refer to the relevant descriptions in Example 1, 2 or 3 for details, and will not be repeated here.

[0139] In this embodiment, for ease of understanding, the working process of the baby rocking device of this embodiment is as follows:

[0140] As shown in Figures 14 and 15, the circular motion of the baby rocking device to the lowest point is taken as an example. At this time, the motor 31 starts to be energized 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 two worm wheels 33 to rotate synchronously clockwise, and different worm wheels 33 respectively drive different two rotating rods 511 to rotate synchronously, so that the second ends of the four rotating rods 511 are respectively rotated around different worm wheels in pairs. The axis of the rotating shaft of the wheel 33 makes a circular motion, and the second ends of the four rotating rods 511 respectively drive four different third connecting rods 521 to move clockwise, and 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 the pivot axis (that is, the fifth pivot axis 500) between them and the first connecting column 11, and the two second connecting rods 42 rotate clockwise around the pivot axis (that is, the sixth pivot axis 600) between them and the first connecting column 11, thereby causing the seat body 2 to make a clockwise circular motion relative to the support base 1.

[0141] Example 5

[0142] 17 to 21 , this embodiment also discloses a baby rocking device. The difference between this embodiment and embodiment 1, 2, 3, or 4 is that the rotating rod 511 is directly pivoted to the seat body 2, specifically, the first connecting rod 41, the second connecting rod 42, and the rotating rod 511 are all pivoted to the pendulum 23 in the seat body 2; and an auxiliary spring 6 for providing an auxiliary force for lifting is also included.

[0143] In this embodiment, similar to the first embodiment, the baby rocking device also includes a support base 1, a seat body 2, a driving mechanism 3, and a connecting mechanism 4. The support base 1 can be supported on the ground as a bearing body. The connecting mechanism 4 is arranged between the seat body 2 and the support base 1. The seat body 2 is used to bear the baby. 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 certain support for the seat body 2. The driving mechanism 3 is arranged on the support base 1. In particular, the seat body 2 is configured to be driven by the driving mechanism 3 and perform circular motion relative to the support base 1 on a vertical plane or an inclined plane. The driving mechanism 3 can output power to act on the seat body 2. At this time, the seat body 2 drives the connecting mechanism 4 to move simultaneously.

[0144] Thus, the baby rocking device of this embodiment can also solve the same technical problems as those described in Example 1 and achieve the same technical effects.

[0145] 18 to 20 , similar to Example 1, the connecting mechanism 4 includes a first link 41 and a second link 42, each pivotally connected between the seat body 2 and the support base 1. Thus, under the driving action of the driving mechanism 3, the rotational trajectory of the first link 41 and the second link 42 constrains the movement trajectory of the seat body 2.

[0146] As preferably as in Example 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.

[0147] As preferably as in Example 1, there are two groups of connecting mechanisms 4, which are arranged opposite to each other to improve the stability of the seat body 2 during movement and avoid downward twisting due to unilateral force; there are two groups of connecting mechanisms 4, that is, there are two first connecting rods 41, and there are also two second connecting rods 42.

[0148] As preferred as Example 1, the driving 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. The connection relationship between the various components in the driving mechanism 3 can refer to the relevant description in Example 1, wherein the worm wheel 33 is also provided with one.

[0149] The difference is that the driving mechanism 3 is installed on the support base 1 using a different scheme: in this embodiment, a lower mounting box 17 is provided on the support base 1, the lower mounting box 17 is connected to the upper mounting box 18, the worm 32 and the worm gear 33 are arranged between the lower mounting box 17 and the upper mounting box 18, and the worm gear 33 is arranged in the center relative to the support base 1; two sets of connecting mechanisms 4 are respectively arranged 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 all pivotally connected to the upper mounting box 18.

[0150] The difference is that the transmission mechanism 5 only includes a rotating rod 511. The first end of the rotating rod 511 is fixedly connected to the rotating shaft of the worm gear 33, and the second end of the rotating rod 511 is pivotally connected to the seat body 2. The first pivot axis 100 is colinear with the axis of the rotating shaft of the worm gear 33, so that the rotating rod 511 is rotatable relative to the support base 1 about the first pivot axis 100. The second end of the rotating rod 511 is pivotally connected to the seat body 2 about the second pivot axis 200. When the driving mechanism 3 drives the rotating rod 511 in a circular motion, the rotating rod 511 can drive the seat body 2 to also move in a synchronous circular motion. This simplifies the structure of the transmission mechanism 5, requiring only the rotating rod 511, thereby saving costs.

[0151] Referring to Figures 17 to 19, in this embodiment, preferably, the seat body 2 includes a connected ornament 23, a mounting seat 21 and a seat frame 22, the ornament 23 supports the mounting seat 21, the mounting seat 21 supports the seat frame 22, and the first connecting rod 41, the second connecting rod 42 and the rotating rod 511 are all pivotally connected to the ornament 23, so that the mounting seat 21 and the seat frame 22 can be driven to perform circular motion through the ornament 23.

[0152] It is understandable that, as described in Example 1, in other embodiments, the eccentric rotating part 51 can also be a pin eccentrically arranged on one side of the worm gear 33, and the seat body 2 is pivotally connected to the pin, specifically the pendulum 23 is pivotally connected to the pin, and the pin can also make circular motion as the worm gear 33 rotates. At this time, the pin can rotate around the axis of the worm gear 33 shaft relative to the support base 1, that is, the first pivot axis 100 is also colinear with the axis of the worm gear 33 shaft. 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 can 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.

[0153] Referring to Figures 18 to 20, in order to improve the supporting strength and the stability of the movement, two rotating rods 511 are provided, two pendulums 23 are provided, and two groups of connecting mechanisms 4 are provided. 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 pendulum 23 and one group of connecting mechanisms 4 are arranged in a one-to-one correspondence.

[0154] Specifically, with reference to the direction shown in FIG18 , a rotating rod 511, a swing member 23 and a group of connecting mechanisms 4 are located at the rear side of the upper mounting box 18, and in this group of structures, the first end of the rear rotating rod 511 is pivotally connected to the rear end of the rotating shaft of the worm gear 33, the second end of the rear rotating rod 511 is pivotally connected to the rear swing member 23, the first end of the rear first connecting rod 41 and the first end of the rear second connecting rod 42 are respectively pivotally connected to the rear side of the upper mounting box 18, the second end of the rear first connecting rod 41 and the second end of the rear second connecting rod 42 are respectively pivotally connected to the rear side of the upper mounting box 18, and the second end of the rear first connecting rod 41 and the second end of the rear second connecting rod 42 are respectively pivotally connected to the rear side of the upper mounting box 18. The rear rocker 23; another rotating rod 511, another rocker 23 and another set of connecting mechanisms 4 are located on the front side of the upper mounting box 18, and in this set of structures, the first end of the front rotating rod 511 is pivoted to the front end of the worm gear 33 rotating shaft, the second end of the front rotating rod 511 is pivoted to the front rocker 23, the first end of the front first connecting rod 41 and the first end of the front second connecting rod 42 are respectively pivoted 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 pivoted to the front rocker 23.

[0155] 18 and 21 , the ornament 23 includes a first portion 231 and a second portion 232. The second portion 232 is connected to the first portion 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 portion 231. Preferably, the first portion 231 is in the shape of an integrated inverted triangle. The first connecting rod 41 and the second connecting rod 42 are respectively pivotally connected to the two corners above the first portion 231, and the rotating rod 511 is pivotally connected to the corner below the first portion 231. Specifically, the first part 231 includes a first section 2311, a second section 2312 and a third section 2313. The lower end of the first section 2311 is connected to the lower end of the second section 2312, one end of the third section 2313 is connected to the upper end of the first section 2311, and the other end of the third section 2313 is connected to the upper end of the second section 2312. The first section 2311, the second section 2312 and the third section 2313 are integrally formed and are in the same plane. The first connecting rod 41 is pivoted to the connection between the third section 2313 and the first section 2311, the second connecting rod 42 is pivoted to the connection between the third section 2313 and the second section 2312, and the rotating rod 511 is pivoted to the connection between the first section 2311 and the second section 2312. Among them, the connection between the third section 2313 and the first section 2311 and the connection between the third section 2313 and the second section 2312 are the two corners above the first part 231, and the connection between the first section 2311 and the second section 2312 is the corner below the first part 231.

[0156] In this way, compared with the method of stacking three rods and pivoting them with the first connecting rod 41, the second connecting rod 42 and the rotating rod 511 respectively (there will be a total of six pivot points, and its overall thickness will be at least the superimposed thickness of the two rods), the present embodiment provides a component that uses the pendulum 23 to pivot the first connecting rod 41, the second connecting rod 42 and the rotating rod 511. Overall, only three pivot points are required to achieve the pivotal connection with the first connecting rod 41, the second connecting rod 42 and the rotating rod 511, saving three pivot points and the thickness of at least one rod. When two pendulum members 23 are used, six pivot points and the thickness of at least two rods are saved as a whole. In this way, the overall thickness can be made thinner and the cost is lower.

[0157] It should be noted that the middle area enclosed by the first section 2311, the second section 2312, and the third section 2313 can form a sealed area, and a reinforcing rib can be formed in the sealed area. That is, when viewing the first portion 231 from an overall perspective, the middle area of ​​the first portion 231 can also be considered to be partially concave. Of course, the middle area enclosed by the first section 2311, the second section 2312, and the third section 2313 can also be hollow.

[0158] Based on the fact that the first part 231 adopts an integrated structure, it is further preferred that the first part 231 and the second part 232 are also integrally formed, thereby improving the strength and stability of the ornament 23 as a whole and controlling its cost.

[0159] In other preferred embodiments, the ornament 23 may also adopt other structural shapes. For example, the first portion 231 may be T-shaped or cross-shaped. In this case, the second section 2312 is vertically arranged, the first section 2311 and the third section 2313 are horizontally arranged and relatively connected to the two sides of the second section 2312 (in this case, it is possible to regard the first section 2311 and the third section 2313 as the same horizontal section), the first connecting rod 41 is pivotally connected to the first section 2311, the second connecting rod 42 is pivotally connected to the third section 2313, and the rotating rod 511 is pivotally connected to the second section 23 12; or the first part 231 can also be U-shaped, in this case, the second part 232 can be connected to the top of the first part 231, and the specific pivot positions of the first connecting rod 41, the second connecting rod 42 and the rotating rod 511 on the first part 231 are adjusted according to the setting needs; or the first part 231 can also be rectangular or trapezoidal, in this case the first part 231 will also include a fourth section, and the specific pivot positions of the first connecting rod 41, the second connecting rod 42 and the rotating rod 511 on the first part 231 are adjusted according to the setting needs.

[0160] Referring to Figures 17 to 19 , the baby rocking device further includes an auxiliary spring 6 for providing an auxiliary force to assist in the upward movement of the seat. One end of the auxiliary spring 6 is connected to the rocking member 23, and the other end is connected to the support base 1. This auxiliary spring 6 provides an auxiliary force to assist in the upward movement of the rocking member 23, thus saving effort and making it easier for the drive mechanism 3 to drive the seat body 2 to swing upward in a circular motion.

[0161] Specifically, in order to provide a more stable ascending auxiliary force, at least two auxiliary springs 6 are provided. Based on the fact that the number of the pendulums 23 is two, the number of the auxiliary springs 6 will preferably be four, wherein every two auxiliary springs 6 are arranged in pairs and correspond to one pendulum 23. In each pair of auxiliary springs 6, the two auxiliary springs 6 are arranged relative to each other in an inverted eight shape, wherein one end of the two auxiliary springs 6 is respectively connected to the pendulum 23, and the other ends of the two auxiliary springs 6 are respectively connected to the support base 1. Specifically, four fifth connecting rods are provided on the support base 1, and the other ends of different auxiliary springs 6 are respectively connected to different fifth connecting columns 16, thereby realizing the relative connection of the auxiliary springs 6 between the pendulum 23 and the support base 1.

[0162] Regarding the specific connection scheme between the auxiliary spring 6 and the pendulum member 23, and between the auxiliary spring 6 and the fifth connecting post 16, optionally, the first portion 231 of each pendulum member 23 is provided with two first hooking posts, spaced apart and arranged at the corner below the first portion 231. A second hooking post is provided at the upper end of each fifth connecting post 16, with one end of the auxiliary spring 6 connected to the first hooking post, and the other end of the auxiliary spring 6 connected to the second hooking post. Of course, other methods can also be used to achieve the connection between the auxiliary spring 6 and the pendulum member 23, and between the auxiliary spring 6 and the fifth connecting post 16, and these are not limited here.

[0163] It should be noted that for other structures not described, please refer to the relevant description in Example 1 for details, and will not be repeated here.

[0164] In this embodiment, for ease of understanding, the working process of the baby rocking device of this embodiment is as follows:

[0165] As shown in Figures 17 and 18, the circumferential motion of the baby rocking device reaches the highest point as an example. At this time, the motor 31 starts to be energized 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 two rotating rods 511 to rotate synchronously, so that the second end of the rotating rod 511 rotates around the axis of the rotating shaft of the worm wheel 33 (that is, The first pivot axis 100) makes a circular motion, and the second ends of the two rotating rods 511 drive the two pendulums 23 to move clockwise. The pendulums 23 drive the mounting seat 21 and the seat frame 22 to move synchronously, so that the first connecting rod 41 rotates clockwise around the pivot axis between it and the upper mounting box 18 (that is, the fifth pivot axis 500), and the second connecting rod 42 rotates clockwise around the pivot axis between it and the upper mounting box 18 (that is, the sixth pivot axis 600), thereby causing the seat body 2 to make a clockwise circular motion relative to the support base 1.

[0166] Example 6

[0167] 22 to 24 , this embodiment also discloses a baby rocking device. The difference between this embodiment and embodiment 1, 2, 3, 4, or 5 is that two worm gears 33 are provided, 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 .

[0168] In this embodiment, similar to the first embodiment, the baby rocking device also includes a support base 1, a seat body 2, a driving mechanism 3, and a connecting mechanism 4. The support base 1 can be supported on the ground as a bearing body. The connecting mechanism 4 is arranged between the seat body 2 and the support base 1. The seat body 2 is used to bear the baby. 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 certain support for the seat body 2. The driving mechanism 3 is arranged on the support base 1. In particular, the seat body 2 is configured to be driven by the driving mechanism 3 and perform circular motion relative to the support base 1 on a vertical plane or an inclined plane. The driving mechanism 3 can output power to act on the seat body 2. At this time, the seat body 2 drives the connecting mechanism 4 to move simultaneously.

[0169] Thus, the baby rocking device of this embodiment can also solve the same technical problems as those described in Example 1 and achieve the same technical effects.

[0170] 22 and 23 , similar to Example 1, the connecting mechanism 4 includes a first link 41 and a second link 42, each pivotally connected between the seat body 2 and the support base 1. Thus, under the driving action of the driving mechanism 3, the rotational trajectory of the first link 41 and the second link 42 constrains the movement trajectory of the seat body 2.

[0171] As preferably as in Example 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.

[0172] As preferably as in Example 1, there are two groups of connecting mechanisms 4, which are arranged opposite to each other to improve the stability of the seat body 2 during movement and avoid downward twisting due to unilateral force; there are two groups of connecting mechanisms 4, that is, there are two first connecting rods 41, and there are also two second connecting rods 42.

[0173] Different from Example 1 but equally preferred as Example 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, wherein two worm wheels 33 are also provided, and the two worm wheels 33 are arranged at intervals along the axial direction of the worm 32. The connection relationship of the various components in the drive mechanism 3 can be referred to the relevant description in Example 3 or 4.

[0174] In this embodiment, what is special is that based on the 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.

[0175] Among them, since the two worm gears 33 are both 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 rotating shafts of different worm gears 33, the first connecting rod 41 and one of the worm gears 33 share a rotating shaft, and the second connecting rod 42 and the other worm gear 33 share a rotating shaft, thereby realizing the pivotal connection of the first connecting rod 41 and the support base 1, and the pivotal connection of the second connecting rod 42 and the support base 1.

[0176] Referring to Figures 23 and 24, two groups are provided based on the connecting mechanism 4. Preferably, the seat body 2 includes a connected mounting base 21 and a seat frame 22, the mounting base 21 supports the seat frame 22, the mounting base 21 includes two connecting frames 211, and one connecting frame 211 and a group 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 rotating shaft of one of the worm gears 33, and the second ends of the two first connecting rods 41 are respectively pivoted to different connecting frames 211, and the first ends of the two second connecting rods 42 are respectively fixedly connected to the two ends of the rotating shaft of the other worm gear 33, and the second ends of the two second connecting rods 42 are respectively pivoted to different connecting frames 211. Among them, the first connecting rod 41 is located on the outside of the worm gear 33, the second connecting rod 42 is located on the outside of the worm gear 33, and the connecting frame 211 is located on the outside of the first connecting rod 41 and the second connecting rod 42. An avoidance space is formed between the two connecting frames 211. When the seat body 2 makes a circular motion, the worm gear 33, the first connecting rod 41 and the second connecting rod 42 can move relative to each other in the avoidance space.

[0177] Specifically, with reference to the direction shown in FIG23 , 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 rotatable relative to the support base 1 around the axis of the rotating shaft of the worm gear 33 on the left side, and 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, and 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 rotatable relative to the support base 1 around the axis of the rotating shaft of the worm gear 33 on the right side, and the second end of the second connecting rod 42 is pivotally connected to the connecting frame 211 located at the rear. The right end of the frame 211; in the connecting mechanism 4 located in front of the worm gear 33, the first end of the first connecting rod 41 is fixedly connected to the front end of the rotating shaft of the worm gear 33 on the left, so that the first connecting rod 41 is rotatable around the axis of the rotating shaft of the worm gear 33 on the left relative to the support base 1, and the second end of the first connecting rod 41 is pivoted to the left end of the connecting frame 211 located in the front, and the first end of the second connecting rod 42 is fixedly connected to the front end of the rotating shaft of the worm gear 33 on the right, so that the second connecting rod 42 is rotatable around the axis of the rotating shaft of the worm gear 33 on the right relative to the support base 1, and the second end of the second connecting rod 42 is pivoted to the right end of the connecting frame 211 located in the front.

[0178] It should be noted that in other preferred embodiments, when there is only one group of connecting mechanism 4, 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 Example 3. At this time, one end of the rotating shaft of one worm gear 33 is fixedly connected to the first connecting rod 41, and one end of the rotating shaft of the other worm gear 33 is fixedly connected to the second connecting rod 42.

[0179] Thus, compared to Examples 1, 2, 3, 4, or 5, the infant rocking device of this embodiment utilizes dual worm gears 33 coupled with a direct drive connection between the worm gears 33 and the connecting mechanism 4, creating two spaced-apart power points. This increases driving force, while also simplifying the overall structure and reducing component count, further reducing costs. Furthermore, the dual connecting frames 211 and dual connecting mechanisms 4 avoid interference between the structures, improving stability during movement and preventing downward twisting due to unilateral force.

[0180] It should be noted that for other structures not described, please refer to the relevant descriptions in Example 1, 2, 3, 4, or 5, and they will not be repeated here.

[0181] In this embodiment, for ease of understanding, the working process of the baby rocking device of this embodiment is as follows:

[0182] As shown in Figures 22 and 23, taking the circular motion of the baby rocking device to the highest point as the starting point as an example, at this time, the motor 31 starts to be energized 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 two worm wheels 33 to rotate synchronously clockwise, and 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 the rotating shaft of one of the worm wheels 33, and the two second connecting rods 42 rotate clockwise around the axis of the rotating shaft of the other worm wheel 33, thereby causing the seat body 2 to perform a clockwise circular motion relative to the support base 1.

[0183] As can be seen from any of the above-mentioned embodiments 1 to 6, the baby rocking device of the present invention further has the following advantages: with the connection mechanism 4 limiting the movement trajectory of the seat body 2, the seat body 2 can be driven by only one motor 31 to achieve circular motion, thereby achieving lateral movement and vertical movement of the seat body 2, thereby achieving a simple structure, low cost, and low noise. In addition, in some usage scenarios, as needed, the seat body 2 may not perform a complete circular motion, such as a semicircular or arc-shaped motion. In this case, this can be achieved by rotating the motor 31 forward and reverse; or the motor 31 can be stopped to achieve segmented circular motion, thereby forming a circular motion.

[0184] The technical means disclosed in the solutions of the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A baby rocking device, characterized in that: include: Support base, seat body, drive mechanism, connecting mechanism, wherein, The connecting mechanism is arranged between the seat body and the support base to limit the movement trajectory of the seat body, the driving mechanism is arranged on the support base, and the seat body is configured to be driven by the driving mechanism to make circular motion on a vertical plane or an inclined plane relative to the support base.

2. The baby rocking device according to claim 1, characterized in that: The connecting mechanism comprises a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are respectively pivotally connected between the seat body and the supporting base.

3. The baby rocking device according to claim 2, characterized in that: The distance between the two pivot axes of the first connecting rod is equal to the distance between the two pivot axes of the second connecting rod, and the distance between the pivot axis between the first connecting rod and the seat body and the pivot axis between the second connecting rod and the seat body is equal to the distance between the pivot axis between the first connecting rod and the support base and the pivot axis between the second connecting rod and the support base.

4. The baby rocking device according to claim 3, characterized in that: The seat body comprises a mounting seat and a seat frame connected to each other, the mounting seat supports the seat frame, and the first connecting rod and the second connecting rod are respectively pivotally connected to the mounting seat.

5. The baby rocking device according to claim 4, characterized in that: The connecting mechanism is provided with two groups and is relatively arranged on two opposite outer sides of the mounting seat. The support base is provided with a plurality of first connecting columns, and the plurality of first connecting columns are divided into two groups and arranged relatively. The two first connecting rods and the two second connecting rods are respectively pivotally connected to the inner sides of different first connecting columns. When the driving mechanism drives the seat body to make a circular motion, the mounting seat can move within the accommodation space surrounded by the plurality of first connecting columns.

6. The baby rocking device according to claim 5, characterized in that: The height of the mounting seat is greater than the distance between the two pivot axes of the first connecting rod; and / or the height of the mounting seat is greater than the distance between the two pivot axes of the second connecting rod.

7. The baby rocking device according to claim 4, characterized in that: The seat frame is detachably connected to the upper part of the mounting seat.

8. The baby rocking device according to claim 4, 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 around a first pivot axis, and 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 around 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 is also equal to the distance between the two pivot axes of the second connecting rod.

9. The baby rocking device according to claim 8, characterized in that: The connecting part includes a third connecting rod and a fourth connecting rod, and the third connecting rod and the fourth connecting rod are arranged at an angle. The first end of the third connecting rod and the first end of the fourth connecting rod are both pivotally connected to the eccentric rotating part around the second pivot axis, the second end of the third connecting rod is connected to the seat body or the first connecting rod, and the second end of the fourth connecting rod is connected to the seat body or the second connecting rod.

10. The baby rocking device according to claim 9, 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 a 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 a fourth pivot axis.

11. The baby rocking device according to claim 8, characterized in that: The driving mechanism includes a motor, a worm and a worm wheel. The motor is transmission-connected to the worm, the worm wheel cooperates with the worm, and 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.

12. The baby rocking device according to claim 11, characterized in that: The worm wheel is provided with one, the transmission mechanism is provided with two groups and arranged on 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 rotating shaft of the worm wheel.

13. The baby rocking device according to claim 11, characterized in that: The driving mechanism also includes a first pulley, a second pulley, and a belt, wherein the first pulley is mounted on the output shaft of the motor, the second pulley is mounted on the rotating shaft of the worm, and the belt is wound around the first pulley and the second pulley, wherein the diameter of the first pulley is smaller than the diameter of the second pulley.

14. The baby rocking device according to claim 3, characterized in that: The driving mechanism includes a first driving mechanism and a second driving mechanism. The first connecting rod is configured to be driven by the first driving mechanism to make a circular motion relative to the support base. The second connecting rod is configured to be driven by the second driving mechanism to make a circular motion relative to the support base.

15. The baby rocking device according to claim 3, characterized in that: It also includes a transmission mechanism, which includes a first transmission component and a second transmission component. The drive mechanism drives the first transmission component to move and drives the second transmission component to move. The first transmission component is connected to the first connecting rod and drives the first connecting rod to move in a circular motion. The second transmission component is connected to the second connecting rod and drives the second connecting rod to move in a circular motion.

16. The baby rocking device according to claim 11, characterized in that: The connecting mechanism is provided with a group, and the first connecting rod and the second connecting rod are diagonally arranged on two opposite sides of the mounting seat.

17. The baby rocking device according to claim 16, characterized in that: The worm wheel is provided with one, the transmission mechanism is provided with two groups and is arranged on two opposite sides of the worm wheel, and the rotating rods of the two transmission mechanisms are respectively fixedly connected to the two ends of the rotating shaft of the worm wheel.

18. The baby rocking device according to claim 16, characterized in that: There are two worm wheels, which are arranged at intervals along the axial direction of the worm. There are two groups of transmission mechanisms, which are arranged on opposite sides of the two worm wheels. The rotating rods of different transmission mechanisms are respectively fixedly connected to the rotating shafts of different worm wheels.

19. The baby rocking device according to claim 11, characterized in that: There are two worm wheels, which are arranged at intervals along the axial direction of the worm. There are four transmission mechanisms, which are arranged in pairs. The first ends of the rotating rods of each two transmission mechanisms are respectively fixedly connected to the two ends of the rotating shaft of a corresponding worm wheel.

20. The baby rocking device according to any one of claims 17 to 19, characterized in that: The connecting part includes a third connecting rod, a first end of the third connecting rod is pivotally connected to the second end of the rotating rod, a second end of the third connecting rod and the first connecting rod of the connecting mechanism are pivotally connected to the seat body around a third pivot axis, or a second end of the third connecting rod and the second connecting rod of the connecting mechanism are pivotally connected to the seat body around a fourth pivot axis.

21. The baby rocking device according to claim 2 or 3, characterized in that: The driving mechanism includes a motor, a worm, and a worm wheel. The motor is connected to the worm in a transmission manner, and the worm wheel cooperates with the worm. It also 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 seat body.

22. The baby rocking device according to claim 21, characterized in that: The seat body includes a connected pendulum, a mounting seat and a seat frame, the pendulum supports the mounting seat, the mounting seat supports the seat frame, the pendulum includes a first part and a second part, the second part is connected to the first part, the second part is used to connect with the mounting seat, the first connecting rod, the second connecting rod and the rotating rod are all pivotally connected to the first part.

23. The baby rocking device according to claim 22, characterized in that: The first part includes at least a first section, a second section, and a third section. The first section, the second section, and the third section are integrally formed and are in the same plane. The first connecting rod is pivoted to the first section or to the connection between the first section and the third section. The second connecting rod is pivoted to the third section or to the connection between the second section and the third section. The rotating rod is pivoted to the second section or to the connection between the first section and the second section.

24. The baby rocking device according to claim 22, characterized in that: There is one worm wheel, two rotating rods, two pendulums, and two groups of connecting mechanisms. The two rotating rods are respectively fixedly connected to the two ends of the rotating shaft of the worm wheel. One rotating rod, one pendulum and one group of connecting mechanisms are arranged in a one-to-one correspondence.

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

26. The baby rocking device according to claim 25, characterized in that: At least two fifth connecting columns are provided on the support base, and at least two auxiliary springs are provided. The two auxiliary springs are arranged opposite to each other in an inverted eight shape, wherein one end of the two auxiliary springs is respectively connected to the pendulum, and the other end of the two auxiliary springs is respectively connected to different fifth connecting columns.

27. The baby rocking device according to claim 2 or 3, characterized in that: The driving mechanism includes a motor, a worm, and two worm wheels. The motor is connected to the worm in a transmission manner. The two worm wheels are arranged at intervals along the axial direction of the worm and respectively cooperate with the worm. 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.

28. The baby rocking device according to claim 27, characterized in that: The seat body includes a connected mounting seat and a seat frame, the mounting seat supports the seat frame, the mounting seat includes two connecting frames, the connecting mechanism is provided with two groups, one connecting frame and one group 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 rotating shaft of one of the worm gears, the second ends of the two first connecting rods are respectively pivoted to different connecting frames, the first ends of the two second connecting rods are respectively fixedly connected to the two ends of the rotating shaft of another of the worm gears, and the second ends of the two second connecting rods are respectively pivoted to different connecting frames.

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