Baby care device

Abstract

The utility model discloses a baby care device which comprises a supporting seat, a seat body, a swing arm, a first rotating shaft, a second rotating shaft, a controller, a first motor and a first transmission mechanism. When the controller controls the first motor to act, the first motor drives the swing arm to swing around the first rotating shaft; the swing arm drives the seat body to move forwards and backwards relative to the supporting seat and rotate forwards and backwards at the same time, the seat body rotates backwards when the swing arm drives the seat body to move forwards relative to the supporting seat, and the seat body rotates forwards when the swing arm drives the seat body to move backwards relative to the supporting seat; when the seat adjusting part of the controller controls the first motor to stop, the seat body stops at the preset position and is kept at the preset tipping angle, so that the seat body can be automatically adjusted among different tipping angles. According to the baby care device, when the seat body swings along with the swing arm and stops, the tipping angle of the seat body can be automatically adjusted, the cost is low, the riding comfort is high, and the supporting seat occupies a small area.

Description

Technical Field

[0001] The utility model relates to the technical field of children's products, in particular to a baby care device. Background Art

[0002] For families with infants and young children, parents often need to use equipment such as rocking chairs to hold, comfort and entertain their infants and young children. When using a children's rocking chair in a stopped rocking state, it is sometimes necessary to adjust the overall tilt angle of the seat within a certain angle range to raise the infant's head or to make the infant lie flatter, thereby meeting different needs. In order to achieve the adjustment of the overall tilt angle of the seat, existing children's rocking chairs are generally achieved through the structure of the seat itself. For example, Chinese patent CN217658989U discloses a children's rocking chair, the seat includes a chair frame and a U-shaped bracket, the chair frame and the U-shaped bracket are connected by a rotation adjustment mechanism, and the chair frame is manually adjusted to rotate and fix relative to the U-shaped bracket, thereby adjusting the overall tilt angle of the seat, so that the seat can have multiple tilt angles for users to choose when the rocking is stopped. However, it has the following technical problems:

[0003] The EU safety test has safety requirements for the angles between the seat and the horizontal plane, and between the back and the horizontal plane. For example, the angle between the seat and the horizontal plane must not be less than 0° (i.e., the seat must not tilt downward) in any state, and the angle between the back and the horizontal plane must not be less than 10°. In this prior art, due to the tilted arrangement of the first rotation axis, the seat's tilt angle will change to a certain extent when the swing arm drives the seat to swing. While maintaining the adjustable angle range of the seat's overall tilt angle, the angle between the seat and the back must be correspondingly reduced to meet EU safety test standards. However, this reduced angle between the seat and the back affects the seat's comfort, making it uncomfortable for children to sit in the rocking chair.

[0004] It is necessary to add a rotation adjustment mechanism to the seat body, which results in a complex seat body structure, many parts, high cost, and inconvenient manual adjustment. Utility Model Content

[0005] In order to overcome at least one of the defects described in the above-mentioned prior art, the present invention provides a baby care device that can realize the front and rear distance movement and front and rear tilt rotation of the seat body, so that when the seat body swings with the swing arm and stops, the tilt angle of the seat body can be automatically adjusted. It has low cost, high riding comfort, and the support seat occupies a small area.

[0006] The utility model is realized through the following technical solutions:

[0007] A baby care device includes: a support base, a base body, a swing arm, a first rotating shaft, a second rotating shaft, a controller, a first motor, and a first transmission mechanism, wherein:

[0008] One end of the swing arm is connected to the support seat for relative rotation via a first rotation axis, and the other end of the swing arm is connected to the seat for relative rotation or fixed connection via a second rotation axis. The axis of the first rotation axis is inclined relative to the horizontal plane, and the axis of the second rotation axis is perpendicular or inclined relative to the horizontal plane. The angle between the axis of the first rotation axis and the horizontal plane is smaller than the angle between the axis of the second rotation axis and the horizontal plane.

[0009] The first motor is disposed on the support base, the first transmission mechanism is disposed on the support base, and the first transmission mechanism is respectively connected to the first motor and the swing arm, the controller is electrically connected to the first motor, and the controller is used to output a control instruction to the first motor;

[0010] The swing direction of the swing arm is defined as the front-to-back direction, and the seat surface of the seat body faces forward. When the controller controls the first motor to operate, the first motor drives the swing arm to swing around the first rotation axis, and the swing arm drives the seat body to move forward and backward relative to the support base while also tilting and rotating forward and backward. When the swing arm drives the seat body to move forward relative to the support base, the seat body tilts and rotates backward at the same time, and when the swing arm drives the seat body to move backward relative to the support base, the seat body tilts and rotates forward at the same time.

[0011] The controller includes a seat adjustment unit. When the seat adjustment unit controls the first motor to stop, the seat body stops at a preset position and remains at a preset tilt angle, so that the seat body can be automatically adjusted between different tilt angles.

[0012] Furthermore, the seat adjustment unit includes a processing unit, a seat adjustment unit, and a detection unit. The first motor, the seat adjustment unit, and the detection unit are electrically connected to the processing unit, respectively. The seat adjustment unit is used to output an adjustment instruction to the processing unit. The detection unit is configured to indirectly or directly detect the position of the seat body and feed back a seat body position signal to the processing unit.

[0013] When the processing unit receives the adjustment instruction from the seat adjustment unit, it controls the first motor to operate, causing the seat body to simultaneously move forward and backward and tilt forward and backward, until the detection unit detects that the seat body has moved to a preset position. The processing unit controls the first motor to stop, thereby causing the seat body to stop at the preset position and remain at the preset tilt angle.

[0014] Furthermore, the detection unit includes a grating and a sensor, and the grating and the sensor cooperate to detect the position of the seat indirectly or directly.

[0015] Furthermore, the seat body has at least a forward leaning state, an intermediate state and a backward leaning state. When the seat body is in the forward leaning state, the swing arm stops at the rear end position of the swing stroke. When the seat body is in the intermediate state, the swing arm stops at the middle position of the swing stroke. When the seat body is in the backward leaning state, the swing arm stops at the front end position of the swing stroke. The seat body can stop in any one of the forward leaning state, the intermediate state and the backward leaning state.

[0016] Furthermore, the first transmission mechanism includes a first worm, a first worm wheel, a first swinging member, and a second swinging member. The first worm and the first worm wheel are respectively pivoted to the support seat, the first worm and the first worm wheel are meshed, the first motor is connected to the first worm, one end of the first swinging member is eccentrically pivoted to the first worm wheel, the other end of the first swinging member is pivoted to one end of the second swinging member, and the other end of the second swinging member is pivoted to the swing arm.

[0017] Furthermore, the pivot axis between the first swing member and the second swing member is perpendicular to the pivot axis between the second swing member and the swing arm, the pivot axis between the second swing member and the swing arm is parallel to the axis of the first rotating shaft, and the axis of the first worm gear is parallel to the axis of the first rotating shaft.

[0018] Furthermore, the second rotating shaft is pivotally connected to the other end of the swing arm, one end of the second rotating shaft is fixedly connected to the base body, and also includes a limiting portion, which is configured to control the rotation angle of the second rotating shaft relative to the swing arm.

[0019] Furthermore, the seat body and one end of the second rotating shaft are connected through an adapter, wherein one end of the second rotating shaft is fixed to one end of the adapter, and the other end of the adapter is fixed to the seat body, and the connection between the adapter and the seat body is close to the middle of the swing arm.

[0020] Furthermore, the limiting part includes a limiting member and a matching groove. The limiting member is fixed to the other end of the second rotating shaft, and the matching groove is installed on the support seat. The limiting member cooperates with the matching groove. When the second rotating shaft swings following the swing arm, the limiting member can move relative to the matching groove to control the rotation angle of the second rotating shaft relative to the swing arm.

[0021] Furthermore, it also includes a mode conversion part, which is installed on the support seat and connected to the matching slot. The matching slot is movably connected to the support seat, and the mode conversion part can drive the matching slot to change position.

[0022] Furthermore, a safety limit block is provided on the limiting member, and a limit groove is provided on the swing arm. The safety limit block is rotated along the axis of the second rotating shaft and is set in the limit groove. The safety limit block cooperates with the limit groove to limit the safe angle range of rotation of the second rotating shaft relative to the swing arm.

[0023] Furthermore, the swing arm is an integrated structure, which includes an arm body, a first axial hole, a second axial hole, and a first pivot column. The first axial hole is formed at one end of the arm body, and the second axial hole is formed at the other end of the arm body. The first pivot column is protruding from the arm body, the first rotating shaft is fixed to the first axial hole, the second rotating shaft is rotatably connected to the second axial hole, and the first pivot column is connected to the first transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the structure of the infant care device of the embodiment when it is in a forward tilted state.

[0025] Figure 2 2 is a schematic structural diagram of the infant care device of the embodiment in an intermediate state.

[0026] Figure 3 Schematic diagram of the structure of the infant care device of the embodiment in a reclining state.

[0027] Figure 4 It is a partial explosion diagram of the infant care device of the embodiment when it is in an intermediate state.

[0028] Figure 5 for Figure 4 The structure diagram of the baby care device shown is after removing the supporting feet, upper shell and base.

[0029] Figure 6 for Figure 5 Schematic diagram of a partial explosion of the structure shown.

[0030] Figure 7 Schematic cross-sectional view of the swing arm of this embodiment.

[0031] Figure 8 Schematic diagram of the structure of the adapter of this embodiment.

[0032] Figure 9 for Figure 5 Schematic cross-section of the structure shown.

[0033] Figure 10 for Figure 5 A cross-sectional schematic diagram of another three-dimensional perspective of the partial structure shown.

[0034] Figure 11 for Figure 10 A partial enlarged view of part A is shown.

[0035] Figure 12 for Figure 5 A structural schematic diagram of another perspective of the partial structure shown.

[0036] Figure 13 Figure 5 A partial enlarged view of part B is shown.

[0037] Figure 14 Schematic diagram of the structure of the first bracket of this embodiment.

[0038] The meanings of the reference numerals are as follows:

[0039] 1. Support base; 11. Mounting frame; 111. First bracket; 112. Second bracket; 12. Lower shell; 13. Multiple legs; 2. Seat body; 21. Adapter; 211. Crossbar; 212. Vertical bar; 3. Swing arm; 31. Arm body; 32. First axial hole; 33. Second axial hole; 34. First pivot column; 35. Limiting slot; 4. First rotating axis; 5. Second rotating axis; 6. Controller; 61. Processing unit; 62. Seat adjustment unit; 63. Detection unit; 64. Swing control unit; 7. Driving mechanism; 71. First motor; 711. First turntable; 73. First driving wheel; 74. First transmission belt; 75, first driven wheel; 72, first transmission mechanism; 721, first worm; 722, first worm wheel; 723, second pivot column; 724, first swinging member; 725, second swinging member; 726, second baffle; 8, limiting part; 81, limiting member; 811, safety limit block; 82, matching groove; 9, mode conversion part; 91, second motor; 93, second driving wheel; 94, second transmission belt; 95, second driven wheel; 92, second transmission mechanism; 921, second worm; 922, second worm wheel; 923, third pivot column; 924, third swinging member; 10, upper shell. DETAILED DESCRIPTION

[0040] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0043] See Figures 1 to 11This embodiment discloses a baby care device, which can be used as a child rocking chair or other types of equipment for caring for babies.

[0044] The baby care device includes a support base 1, a base body 2, a swing arm 3, a first rotating shaft 4, a second rotating shaft 5, a controller 6, a driving mechanism 7, a limiting part 8, and an upper shell 10. The driving mechanism 7 includes a first motor 71 and a first transmission mechanism 72. The support base 1 can be used to support the ground and provide support for other components. One end of the swing arm 3 is pivotally connected to the support base 1, and the base body 2 is connected to the other end of the swing arm 3. The support base 1 supports the swing arm 3, and the swing arm 3 is supported on the base body 2. The controller 6, the first motor 71, and the first transmission mechanism 72 can all be arranged on the support base 1. The first transmission mechanism 72 is respectively connected to the first motor 71 and the swing arm 3. The controller 6 is electrically connected to the first motor 71. The controller 6 is used to output control instructions to the first motor 71. The first motor 71 can drive the swing arm 3 to swing through the first transmission mechanism 72. The upper shell 10 can be detachably connected to the support base 1. The upper shell 10 can cover the swing arm 3, the first motor 71, and the first transmission mechanism 72 inside to achieve concealment. In order to facilitate the operation of the controller 6, a side opening for avoiding the controller 6 can be provided in the upper shell 10.

[0045] One end of the swing arm 3 is connected to the support seat 1 by a first rotating shaft 4 to achieve relative rotation. The other end of the swing arm 3 is connected to the seat body 2 by a second rotating shaft 5 to achieve relative rotation. The limiting part 8 is arranged between the support seat 1 and the second rotating shaft 5. The limiting part 8 is configured to control the rotation angle of the second rotating shaft 5 relative to the swing arm 3. When the swing arm 3 swings, the second rotating shaft 5 swings with the seat body 2. The axis of the first rotating shaft 4 is inclined to the horizontal plane, and the axis of the second rotating shaft 5 is vertical or inclined to the horizontal plane. The angle between the axis of the first rotating shaft 4 and the horizontal plane is smaller than the angle between the axis of the second rotating shaft 5 and the horizontal plane. Specifically, the first rotating shaft 4 is fixedly connected to one end of the swing arm 3, and the first rotating shaft 4 is pivotally connected to the support seat 1, so that the swing arm 3 can swing back and forth around the axis of the first rotating shaft 4 relative to the support seat 1. The second rotating shaft 5 is pivotally connected to the other end of the swing arm 3, and one end of the second rotating shaft 5 is fixedly connected to the seat body 2. The limiting part 8 is used to control the rotation angle of the second rotating shaft 5 relative to the swing arm 3, and then control the rotation angle of the seat body 2 relative to the swing arm 3.

[0046] It can be understood that in other preferred embodiments, the first rotating shaft 4 can also be fixedly connected to the support base 1 and pivotally connected to the swing arm 3, or the first rotating shaft 4 can be pivotally connected to the support base 1 and also pivotally connected to the swing arm 3, so that the swing arm 3 can swing around the first rotating shaft 4 relative to the support base 1.

[0047] The controller 6 may include a swing control unit and a seat adjustment unit. The swing control unit is used to issue a swing instruction, which is used to control the first motor 71 to keep moving and output a driving force, so that the swing arm 3 keeps swinging repeatedly, and then the seat body 2 continuously moves forward and backward and tilts forward and backward, thereby soothing and pleasing the infant; the seat adjustment unit is used to issue an adjustment instruction, which is used to control the seat body 2 to stop at the required tilt angle when the infant care device stops swinging, so that the infant's head can be raised higher, or the infant can lie flatter, thereby meeting different needs.

[0048] The swinging direction of the swing arm 3 is defined as the front-to-back direction, and the seat surface of the seat body 2 faces forward. When the controller 6 controls the first motor 71 to operate, the first motor 71 drives the swing arm 3 to swing around the first rotation axis 4, and the swing arm 3 drives the seat body 2 to move forward and backward relative to the support base 1 and to tilt and rotate forward and backward. When the swing arm 3 drives the seat body 2 to move forward relative to the support base 1, the seat body 2 simultaneously tilts and rotates backward, and when the swing arm 3 drives the seat body 2 to move backward relative to the support base 1, the seat body 2 simultaneously tilts and rotates forward; when the seat adjustment part controls the first motor 71 to stop, the seat body 2 stops at a preset position and remains at a preset tilt angle, so that the seat body 2 can be automatically adjusted between different tilt angles.

[0049] In another preferred embodiment, the other end of the swing arm 3 and the base body 2 can also be fixedly connected through the second rotating shaft 5, that is, the second rotating shaft 5 is fixedly connected to the other end of the swing arm 3, and the second rotating shaft 5 is also fixedly connected to the base body 2, and the second rotating shaft 5 may not play a rotating role. At this time, when the first motor 71 drives the swing arm 3 to swing around the first rotating shaft 4, the swing arm 3 can also drive the base body 2 to move forward and backward relative to the support base 1 and tilt forward and backward at the same time.

[0050] The infant care device provided by the present invention tilts the axis of the first rotating shaft 4 with the horizontal plane to achieve the front-to-back distance movement and the front-to-back tilting rotation of the seat body 2, and sets the angle between the axis of the first rotating shaft 4 and the horizontal plane to be smaller than the angle between the axis of the second rotating shaft 5 and the horizontal plane. By controlling the corresponding relationship between the swing direction of the swing arm 3 and the seat surface orientation of the seat body 2, the seat body 2 is simultaneously tilted and rotated backward when it moves forward, and simultaneously tilted and rotated forward when it moves backward. The controller 6 controls the first motor 71 to start or stop, thereby controlling the swing action of the swing arm 3, and further controlling the front-to-back distance movement and the front-to-back tilting rotation of the seat body 2. Action, in this way, the combined driving action of the controller 6, the first motor 71 and the swing arm 3 is directly utilized, so that the seat body 2 can automatically complete the adjustment of the tilt angle of the seat body 2 when it swings with the swing arm 3 and stops. Compared with the existing technology as described in the background technology, an additional rotation adjustment mechanism is saved, thereby saving costs. When the swinging action meets the EU safety test standards, the tilt angle of the seat body 2 in the stopped state can also meet the EU safety test standards at the same time. Moreover, while ensuring that the adjustment range of the tilt angle of the seat body 2 is the same, the angle between the seat part and the back of the seat body 2 itself can be set to be relatively larger, thereby improving the riding comfort of the seat body 2.

[0051] On the other hand, since the seat body 2 tilts backward when it moves forward, and tilts forward when it moves backward, when the seat body 2 stops at the front position, the seat body 2 tilts backward so that its center of gravity is backward, and when the seat body 2 stops at the rear position, the seat body 2 tilts forward so that its center of gravity is forward. This makes it possible to meet the EU rollover test standards even if the length of the support legs of the support base 1 is set shorter, which is conducive to the miniaturization of the support base 1 and reduces the footprint of the support base 1.

[0052] To better understand how this solution provides a higher level of comfort compared to existing technologies, please refer to the following examples:

[0053] In the prior art, the reclining angle of the seat body 2 is adjusted when it stops in the middle position to meet the use requirements of different reclining angles of the seat body 2. After the seat surface direction of the seat body 2 in the prior art and the swing direction of the swing arm 3 are set to the same corresponding directions as those in the present solution, if the reclining angle adjustment range of the seat body 2 is set to 12 degrees, that is, the rotation angle range of the chair frame and the U-shaped bracket is 12 degrees, and the reclining angle variation range of the swing arm 3 driving the seat body 2 to rotate is also 12 degrees, since the EU safety test standards require that: the angle between the seat and the horizontal plane shall not be less than 0 degrees (that is, the seat shall not tilt downward), and the angle between the back and the horizontal plane shall not be less than 10 degrees. Therefore, in order to avoid the inclination angle of the seat and the back exceeding the EU safety test standards during swinging, the maximum angle between the seat and the back of the seat body 2 in the prior art can be set to 180°-12°-12°-10°=146°.

[0054] In the present embodiment, the seat adjustment unit controls the first motor 71 to stop, so that the seat body 2 stops at a preset position and remains at a preset reclining angle. The reclining angle adjustment range of the seat body 2 is achieved by the swinging drive of the swing arm 3. In other words, the reclining angle variation range of the seat body 2 driven by the swing arm 3 is the reclining angle adjustment range of the seat body 2 in the present embodiment (i.e., 12°). Therefore, the maximum angle between the seat portion and the back portion of the seat body 2 in the present embodiment can be set to 180°-12°-10°=158°. Therefore, while ensuring that the reclining angle adjustment range of the seat body 2 remains the same, the angle between the seat portion and the back portion of the seat body 2 can be set to a relatively larger angle, thereby improving the riding comfort of the seat body 2.

[0055] It can be understood that in other preferred embodiments, the seat body 2 of this embodiment can also adopt a rotation adjustment mechanism as in the background technology. When the seat body 2 of this embodiment also adopts a rotation adjustment mechanism as in the background technology, then in terms of technical effect: while meeting the EU safety test standards as in the prior art, and the angle between the seat part and the back of the seat body 2 itself is the same, the technical solution of this application can expand the adjustment range of the reclining angle of the seat body 2, increase the adjustment gears of the reclining angle of the seat body 2, thereby meeting more usage needs of users.

[0056] It is understandable that the angle range between the seat portion and the back portion of the seat body 2 may also be affected by other design requirements or standards. The above-mentioned specific angles are only for the convenience of illustration and do not limit the specific values or ranges of each angle.

[0057] Among them, the axis of the first rotating shaft 4 is inclined to the horizontal plane, the axis of the second rotating shaft 5 is perpendicular or inclined to the horizontal plane, and the angle between the axis of the first rotating shaft 4 and the horizontal plane is smaller than the angle between the axis of the second rotating shaft 5 and the horizontal plane. The above arrangement is conducive to better controlling the size of the tilt angle range of the seat body 2, and ensuring that the seat body 2 tilts backward when moving forward, and tilts forward when moving backward.

[0058] See Figures 1 to 3 In this embodiment, preferably, the seat body 2 has at least a forward tilting state, an intermediate state and a backward tilting state. When the seat body 2 is in the forward tilting state, the swing arm 3 stops at the rear end position of the swing stroke. When the seat body 2 is in the intermediate state, the swing arm 3 stops at the middle position of the swing stroke. When the seat body 2 is in the backward tilting state, the swing arm 3 stops at the front end position of the swing stroke. The seat body 2 can stop in any one of the forward tilting state, the intermediate state and the backward tilting state, so that the seat body 2 can have at least three different tilt angles for users to choose.

[0059] Specifically, when the seat body 2 is in the middle state, the second rotation axis 5 is perpendicular to the horizontal plane; when the seat body 2 is in the forward tilted state, the second rotation axis 5 is tilted forward; when the seat body 2 is in the backward tilted state, the second rotation axis 5 is tilted backward.

[0060] In this embodiment, preferably, the seat adjustment part includes a processing unit 61, a seat adjustment unit 62 and a detection unit 63, the first motor 71, the seat adjustment unit 62 and the detection unit 63 are electrically connected to the processing unit 61 respectively, the seat adjustment unit 62 is used to output an adjustment instruction to the processing unit 61, and the detection unit 63 is configured to indirectly or directly detect the position of the seat body 2 and feed back the position signal of the seat body 2 to the processing unit 61; when the processing unit 61 receives the adjustment instruction from the seat adjustment unit 62, it controls the action of the first motor 71, so that the seat body 2 simultaneously generates a forward and backward distance movement and a forward and backward tilt rotation, until the detection unit 63 detects that the seat body 2 moves to a preset position, the processing unit 61 controls the first motor 71 to stop, so that the seat body 2 stops at a preset position and remains at a preset tilt angle.

[0061] As a specific example, the seat adjustment unit 62 may include an adjustment switch, which may be configured with multiple positions corresponding to different reclining positions of the seat 2. The adjustment switch may also be a multi-level adjustment button or a twist key. The seat adjustment unit 62 may also include a signal receiver for communicating with an external electronic device (e.g., Bluetooth communication, wireless network communication, etc.), thereby enabling adjustment instructions to be issued via the external electronic device. Therefore, the specific structure of the seat adjustment unit 62 is not limited herein, as long as it can satisfy the function of outputting adjustment instructions to the processing unit 61.

[0062] As a specific example, the detection unit 63 may include a grating and a sensor, which cooperate to indirectly or directly detect the position of the base 2. For example, the grating and the sensor may cooperate to detect the position of the second rotating shaft 5, or may cooperate to detect the position of the limiting member 81 in the limiting portion 8, or may cooperate to detect the position of the adapter 21. Since the second rotating shaft 5, the limiting member 81, and the adapter 21 are all stationary relative to the base 2, the position of the base 2 can be indirectly detected by detecting the position of the second rotating shaft 5, the limiting member 81, or the adapter 21; alternatively, the grating and the sensor may cooperate to directly detect the position of the base 2. The arrangement of the grating and the sensor can be specifically arranged according to the direct detection object, which is conceivable and will not be elaborated on one by one here.

[0063] In other specific examples, the detection unit 63 may also include other structures such as touch switches that can detect the rotation angle or position of an object, such as being used to detect the rotation angle of the first rotation axis 4 or the swing angle of the swing arm 3, so that the position of the base 2 can be calculated. For example: when the rotation angle range of the first rotation axis 4 is 90 degrees, that is, the swing angle of the swing arm 3 is also 90 degrees, and the middle position of the swing stroke of the swing arm 3 is taken as the initial position, when it is detected that the swing arm 3 swings forward 45 degrees, it can be known that the base 2 has moved to the front position and is in a forward tilted state, and when it is detected that the swing arm 3 swings backward 45 degrees, it can be known that the base 2 has moved to the rear position and is in a backward tilted state. Therefore, the specific composition or structure of the detection unit 63 is not limited here, as long as it can meet the function of indirectly or directly detecting the position of the base 2.

[0064] See Figures 12 to 14 This embodiment also discloses another specific example of calculating the position of the base body 2 by using the detection unit 63: the detection unit 63 is provided with two groups, and the two groups of detection units 63 cooperate to allow the processing unit 61 to calculate the position of the base body 2 through the program; specifically, one group of detection units 63 is used to detect the rotation speed of the first motor 71, and a first turntable 711 is fixedly connected to the rotating shaft of the first motor 71. A plurality of first baffles are arranged in an annular manner on the first turntable 711. The grating and sensor of the group of detection units 63 are arranged relative to the first turntable 711, and the light emitted by the grating is blocked by the first baffle. The time frequency of the line is used to infer the speed of the first motor; another set of detection units 63 is used to detect the position of the first swinging member 724. The first swinging member 724 is provided with a second baffle 726. The grating and sensor of this set of detection units 63 are arranged relative to the second baffle 726. When the first swinging member 724 and the second baffle 726 block the light emitted by the grating, the position of the base 2 can be inferred. Then, combined with the inferred speed of the first motor 71, the new position of the base 2 after the expected time period can be calculated, so that the base 2 can be stopped at different positions. Specifically, both sets of detection units 63 can be arranged on the first bracket 111.

[0065] In addition, as a specific example, the swing control part may include a swing control unit 64. Since the seat adjustment part already includes a processing unit, the swing control unit 64 may be electrically connected to the processing unit. The swing control unit 64 may specifically include a swing control switch key. By pressing the swing control switch key, the first motor 71 can be started, so that the first motor 71 drives the swing arm 3 to keep swinging repeatedly, thereby causing the seat body 2 to continuously move forward and backward and tilt forward and backward. At this time, the baby care device is in a swing drive state; the swing control unit 64 may also include a signal receiver for communicating with external electronic devices (such as Bluetooth communication, wireless network communication, etc.), so that swing instructions can be issued through external electronic devices.

[0066] It should be noted that the preset position of the seat body 2 can be a fixed position, for example, the corresponding stop position of the seat body 2 when the swing arm 3 stops at the middle position, rear end position or front end position of the swing stroke (the middle position corresponds to the middle state, the rear end position corresponds to the forward leaning state, and the front end position corresponds to the backward leaning state). Each stop position of the seat body 2 corresponds to a different tilt angle of the seat body 2, which can be set, so that the tilt angle of the seat body 2 can be adjusted in steps; or the preset position of the seat body 2 can be a non-fixed position, for example, the seat body 2 can stop at a position between the forward leaning state and the middle state or at a position between the middle state and the backward leaning state, so that the adjustment of the tilt angle of the seat body 2 can also be stepless.

[0067] See Figures 5 to 7 In this embodiment, in order to save the production cost of the swing arm 3 and ensure the strength of the swing arm 3, the swing arm 3 is an integrated structure. The swing arm 3 includes an arm body 31, a first axial hole 32, a second axial hole 33, and a first pivot column 34. The first axial hole 32 is formed at one end of the arm body 31, and the second axial hole 33 is formed at the other end of the arm body 31. The first pivot column 34 is protruded from the arm body 31, the first rotating shaft 4 is fixed to the first axial hole 32, the second rotating shaft 5 is rotatably connected to the second axial hole 33, and the first pivot column 34 is connected to the first transmission mechanism 72.

[0068] See Figure 5 and Figure 6 In this embodiment, the first transmission mechanism 72 includes a first worm gear assembly and a first swing drive assembly. The first worm gear assembly is transmission-connected between the first motor 71 and the first swing drive assembly. The first swing drive assembly is also pivotally connected to the swing arm 3. The use of the first worm gear assembly can achieve a high transmission ratio and self-locking, so that the seat body 2 can be stopped at a preset tilt angle without adding an additional locking mechanism.

[0069] Preferably, the first worm gear assembly includes a first worm 721 and a first worm wheel 722. The first worm 721 and the first worm wheel 722 are respectively pivotally connected to the support base 1. The first worm 721 and the first worm wheel 722 are meshed. The first worm 721 and the first worm wheel 722 also include a first driving wheel 73, a first driven wheel 75, and a first transmission belt 74. The first driving wheel 73 is fixedly connected to the output shaft of the first motor 71. The first driven wheel 75 is fixedly connected to the first worm 721. The first driving wheel 73 and the first driven wheel 75 are transmission-connected. Preferably, the first driving wheel 73 and the first driven wheel 75 are pulleys. The diameter of the first driven wheel 75 is larger than the diameter of the first driving wheel 73. The first transmission belt 74 is wound around It is arranged on the first driving wheel 73 and the first driven wheel 75, so as to realize the transmission connection between the first motor 71 and the first worm 721; the first swinging drive assembly includes a first swinging member 724 and a second swinging member 725, one end of the first swinging member 724 is eccentrically pivoted to the first worm gear 722, the other end of the first swinging member 724 is pivoted to one end of the second swinging member 725, and the other end of the second swinging member 725 is pivoted to the swing arm 3. Specifically, a second pivot column 723 is eccentrically arranged on the first worm gear 722, one end of the first swinging member 724 is pivoted to the second pivot column 723, and the other end of the second swinging member 725 is pivoted to the first pivot column 34. Since the seat body 2 exerts force on the swing arm 3 when bearing weight, the swing arm 3 will sink. When a single rod is used for transmission connection, the sinking of the swing arm 3 will produce downward pressure on the rod, which may easily cause it to get stuck and make the drive not smooth. Therefore, the first swinging member 724 and the second swinging member 725 are combined to realize the transmission connection between the first worm gear assembly and the swing arm 3, which can overcome the influence of the sinking of the swing arm 3 on the first swing drive assembly, thereby maintaining smooth drive.

[0070] Specifically, the pivot axis between the first swinging member 724 and the second swinging member 725 is perpendicular to the pivot axis between the second swinging member 725 and the swing arm 3, the pivot axis between the second swinging member 725 and the swing arm 3 is parallel to the axis of the first rotating shaft 4, and the axis of the first worm gear 722 is parallel to the axis of the first rotating shaft 4, that is, the first worm gear 722 is arranged at an angle.

[0071] It should be noted that in other preferred embodiments, a ball joint can be used between the first swinging member 724 and the second swinging member 725, between the second swinging member 725 and the swing arm 3, and between the first swinging member 724 and the second pivot post 723. It is understood that when a ball joint is used, the axis of the first worm gear 722 does not need to be parallel to the axis of the first rotating shaft 4, and the first worm gear 722 can be arranged horizontally.

[0072] It should be noted that when the amount of sinking of the swing arm 3 is small, the first swing member 724 and the second swing member 725 can also be fixedly connected or integrally constitute a rigid component, that is, a swing member is pivotally connected between the swing arm 3 and the first worm gear 722. Since the amount of sinking of the swing arm 3 is small, it will not cause biting, and the swing of the swing arm 3 can be driven normally.

[0073] It should be noted that in other preferred embodiments, other transmission connection methods can be used between the first motor 71 and the first worm 721, such as a gear set structure, and the transmission connection method between the first motor 71 and the first worm 721 is not limited here.

[0074] It should be noted that, in other preferred embodiments, the first transmission mechanism 72 may also adopt any known structure so as to realize the function of the first motor 71 driving the swing arm 3 to swing back and forth, and the specific structure of the first transmission component is not limited here.

[0075] See Figure 4 and Figure 8 In this embodiment, the base 2 is connected to one end of the second rotating shaft 5 via an adapter 21. One end of the second rotating shaft 5 is fixedly mounted to one end of the adapter 21, while the other end of the adapter 21 is fixedly mounted to the base 2. The connection between the adapter 21 and the base 2 is oriented toward the center of the swing arm 3. Because the connection between the adapter 21 and the base 2 is oriented toward the center of the swing arm 3, the torque exerted by the base 2 on the swing arm 3 is relatively small, which helps reduce rotational wear between the first rotating shaft 4 and the support base 1. The swing arm 3 and the first rotating shaft 4 are less likely to bend downward relative to the support base 1, reducing the sinking of the swing arm 3 and ensuring the balance of the base 2. Furthermore, when designing the size of the upper housing 10, only the length of the swing arm 3 and the necessary space occupied by other structures need to be considered. In this case, the upper housing 10 can be made as small as possible, with high overall space utilization, thus meeting the dual design requirements of function and appearance. Specifically, the adapter 21 includes a horizontal rod 211 and a vertical rod 212. One end of the horizontal rod 211 is fixedly connected to the second rotating shaft 5, and the other end of the horizontal rod 211 is fixedly connected to one end of the vertical rod 212. The other end of the vertical rod 212 extends upward and passes through the upper avoidance groove of the upper shell 10. The other end of the vertical rod 212 is connected to the base body 2.

[0076] See Figure 5 and Figure 6In this embodiment, the limiting portion 8 includes a limiting member 81 and a matching slot 82. The limiting member 81 is fixedly connected to the other end of the second rotating shaft 5, and the matching slot 82 is installed in the support base 1. The limiting member 81 cooperates with the matching slot 82. When the second rotating shaft 5 swings along with the swing arm 3, the limiting member 81 can move relative to the matching slot 82, thereby controlling the rotation angle of the second rotating shaft 5 relative to the swing arm 3. Specifically, when the second rotating shaft 5 swings along with the swing arm 3, the limiting member 81 also swings along with the second rotating shaft 5 and moves relative to the matching slot 82. The matching slot 82 drives the limiting member 81, and the limiting member 81 drives the second rotating shaft 5 to rotate relative to the swing arm 3.

[0077] It should be noted that the specific cooperation between the limiting member 81 and the matching groove 82 is known, so it will not be elaborated here, and the present utility model does not limit the specific structure between the limiting member 81 and the matching groove 82.

[0078] It should be noted that, depending on design requirements, the limiting portion 8 may also adopt other known structures. For example, the second rotating shaft 5 may be fixedly connected to the swing arm 3 and pivotally connected to the adapter 21. In this case, the limiting member 81 of the limiting portion 8 may be fixedly connected to the adapter 21. Alternatively, the limiting portion 8 may adopt an electric structure. For example, the limiting portion 8 may include a third motor and a third transmission assembly. The third motor and the third transmission assembly are both mounted on the swing arm 3. The third transmission assembly is connected between the third motor and the second rotating shaft 5. The third motor drives the second rotating shaft 5 to rotate relative to the swing arm 3 via the third transmission assembly, thereby controlling the rotation angle of the base 2 relative to the swing arm 3. Other possible structures of the limiting portion 8 are not listed here one by one.

[0079] See Figure 10 and Figure 11 Based on the aforementioned limiting member 81, to improve safety and prevent uncontrolled rotation of the base 2 due to component damage, preferably, the limiting member 81 is further provided with a safety stopper 811. The swing arm 3 is provided with a stopper slot 35. The safety stopper 811 is rotatably disposed within the stopper slot 35 along the axis of the second rotation shaft 5. The safety stopper 811 cooperates with the stopper slot 35 to limit the safe angular range of rotation of the second rotation shaft 5 relative to the swing arm 3. Specifically, two safety stoppers 811 are provided, circumferentially arranged along the axis of the second rotation shaft 5. Similarly, two stopper slots 35 are provided. The stopper slots 35 are arc-shaped and arranged circumferentially along the axis of the second rotation shaft 5, with the arc center of the stopper slot 35 being on the axis of the second rotation shaft 5. In this manner, the safe angular range of rotation of the second rotation shaft 5 relative to the swing arm 3 can be controlled by the rotation angle of the safety stopper 811 within the stopper slot, thereby controlling the safe angular range of rotation of the base 2 relative to the swing arm 3.

[0080] See Figures 4 to 6Based on the above-mentioned limiting member 81 and matching groove 82, preferably, it also includes a mode conversion part 9, the mode conversion part 9 is installed on the support seat 1, the mode conversion part 9 is connected to the matching groove 82, the matching groove 82 can be movably connected to the support seat 1, and the mode conversion part 9 can drive the matching groove 82 to change position.

[0081] The mode conversion part 9 can be manual or electric. In this embodiment, the mode conversion part 9 is preferably electric. The mode conversion part 9 can be used to enrich the swing modes of the infant care device.

[0082] It should be noted that, whether manual or electric, the mode conversion unit 9 may adopt any specific structure known in the art, and the present invention does not limit the specific structure of the mode conversion unit 9. Figure 6 For ease of understanding, a specific structure of the mode conversion unit 9 may be selected as follows: the mode conversion unit 9 includes a second motor 91, a second driving wheel 93, a second driven wheel 95, a second worm 921, a second worm wheel 922, a third swinging member 924, and a second transmission belt 94. The second motor 91 is mounted on the support base 1, the second driving wheel 93 is fixed to the output shaft of the second motor 91, the second worm 921 is pivotally connected to the support base 1, the second driven wheel 95 is fixed to the second worm 921, the second driving wheel 93 and the second driven wheel 95 are preferably pulleys, and the second driven wheel 9 5 has a diameter greater than that of the second driving wheel 93. The second transmission belt 94 is wound around the second driving wheel 93 and the second driven wheel 95. The second worm gear 922 is pivotally connected to the support base 1 and meshes with the second worm 921. A third pivot post 923 is eccentrically provided on the second worm gear 922. One end of the third swinging member 924 is pivotally connected to the third pivot post 923. The other end of the third swinging member 924 is pivotally connected to the matching groove 82. The matching groove 82 is pivotally connected to the support base 1. The pivot point of the third swinging member 924 and the matching groove 82 deviates from the pivot point of the matching groove 82 and the support base 1. In this way, a high transmission ratio is achieved and self-locking can be achieved by using the worm gear; when the second motor 91 is started, the second motor 91 drives the second driving wheel 93 to rotate, the second driving wheel 93 drives the second driven wheel 95 to rotate through the second transmission belt 94, the second driven wheel 95 drives the second worm 921 to rotate, the second worm 921 drives the second worm wheel 922 to rotate, the second worm wheel 922 drives the third swinging member 924 to swing, and the third swinging member 924 drives the matching slot 82 to swing, thereby changing the position of the matching slot 82; when the second motor 91 stops, the matching slot 82 can be fixed at a preset position.

[0083] See Figure 4 and Figure 5As a specific example, the support base 1 may include a mounting frame 11, a lower housing 12, and a plurality of legs 13. The mounting frame 11 is fixedly connected to the lower housing 12. The plurality of legs 13 pass through the lower housing 12 and are detachably connected to the mounting frame 11. The upper housing 10 is detachably connected to the lower housing 12. The first rotating shaft 4, the first motor 71, the first transmission mechanism 72, the matching groove 82, and the mode switching unit 9 are all disposed on the mounting frame 11. The mounting frame 11 is provided with a first bracket 111 and a second bracket 112. The first motor 71 is specifically mounted on the first bracket 111, and the second motor 91 is specifically mounted on the second bracket 112.

[0084] The technical means disclosed in 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 can 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 care device, characterized in that: include: Support base, base body, swing arm, first rotating shaft, second rotating shaft, controller, first motor, first transmission mechanism, wherein, One end of the swing arm is connected to the support seat for relative rotation via the first rotation axis, and the other end of the swing arm is connected to the seat for relative rotation or fixed connection via the second rotation axis. The axis of the first rotation axis is inclined relative to the horizontal plane, and the axis of the second rotation axis is perpendicular or inclined relative to the horizontal plane. The angle between the axis of the first rotation axis and the horizontal plane is smaller than the angle between the axis of the second rotation axis and the horizontal plane. The first motor is disposed on the support base, the first transmission mechanism is disposed on the support base, and the first transmission mechanism is connected to the first motor and the swing arm respectively, the controller is electrically connected to the first motor, and the controller is used to output control instructions to the first motor; The swing direction of the swing arm is defined as a front-to-back direction, and the seat surface of the seat body faces forward. When the controller controls the first motor to operate, the first motor drives the swing arm to swing around the first rotation axis, and the swing arm drives the seat body to move forward and backward relative to the support base while also tilting and rotating forward and backward. When the swing arm drives the seat body to move forward relative to the support base, the seat body simultaneously tilts and rotates backward, and when the swing arm drives the seat body to move backward relative to the support base, the seat body simultaneously tilts and rotates forward. The controller includes a seat adjustment unit, which controls the first motor to stop so that the seat stops at a preset position and remains at a preset tilt angle, so that the seat can be automatically adjusted between different tilt angles.

2. The infant care device according to claim 1, characterized in that: The seat adjustment unit includes a processing unit, a seat adjustment unit, and a detection unit. The first motor, the seat adjustment unit, and the detection unit are electrically connected to the processing unit, respectively. The seat adjustment unit is used to output an adjustment instruction to the processing unit. The detection unit is configured to indirectly or directly detect the position of the seat body and feed back the seat body position signal to the processing unit. When the processing unit receives the adjustment instruction from the seat adjustment unit, it controls the first motor to operate, so that the seat body simultaneously moves forward and backward and tilts forward and backward, until the detection unit detects that the seat body moves to a preset position. The processing unit controls the first motor to stop, so that the seat body stops at the preset position and remains at the preset tilt angle.

3. The infant care device according to claim 2, characterized in that: The detection unit includes a grating and a sensor, and the grating and the sensor cooperate to detect the position of the base indirectly or directly.

4. The infant care device according to claim 1, characterized in that: The seat body has at least a forward leaning state, an intermediate state and a backward leaning state. When the seat body is in the forward leaning state, the swing arm stops at the rear end position of the swing stroke. When the seat body is in the intermediate state, the swing arm stops at the middle position of the swing stroke. When the seat body is in the backward leaning state, the swing arm stops at the front end position of the swing stroke. The seat body can stop in any one of the forward leaning state, the intermediate state and the backward leaning state.

5. The infant care device according to claim 1, characterized in that: The first transmission mechanism includes a first worm, a first worm wheel, a first swinging member, and a second swinging member. The first worm and the first worm wheel are respectively pivoted to the support seat, the first worm and the first worm wheel are meshed, the first motor is connected to the first worm, one end of the first swinging member is eccentrically pivoted to the first worm wheel, the other end of the first swinging member is pivoted to one end of the second swinging member, and the other end of the second swinging member is pivoted to the swing arm.

6. The infant care device according to claim 5, characterized in that: The pivot axis between the first swing member and the second swing member is perpendicular to the pivot axis between the second swing member and the swing arm, the pivot axis between the second swing member and the swing arm is parallel to the axis of the first rotating shaft, and the axis of the first worm gear is parallel to the axis of the first rotating shaft.

7. The infant care device according to claim 1, characterized in that: The second rotating shaft is pivotally connected to the other end of the swing arm, one end of the second rotating shaft is fixedly connected to the base body, and further includes a limiting portion, which is configured to control the angle of rotation of the second rotating shaft relative to the swing arm.

8. The infant care device according to claim 7, characterized in that: The base body is connected to one end of the second rotating shaft through an adapter, wherein one end of the second rotating shaft is fixed to one end of the adapter, and the other end of the adapter is fixed to the base body, and the connection between the adapter and the base body is close to the middle of the swing arm.

9. The infant care device according to claim 7, characterized in that: The limiting part includes a limiting member and a matching groove. The limiting member is fixedly connected to the other end of the second rotating shaft. The matching groove is installed on the support seat. The limiting member matches the matching groove. When the second rotating shaft swings following the swing arm, the limiting member can move relative to the matching groove to control the rotation angle of the second rotating shaft relative to the swing arm.

10. The infant care device according to claim 9, characterized in that: It also includes a mode conversion part, which is installed on the support seat. The mode conversion part is connected to the matching slot. The matching slot is movably connected to the support seat, and the mode conversion part can drive the matching slot to change position.

11. The infant care device according to claim 9, characterized in that: A safety limit block is also provided on the limiting member, and a limit groove is provided on the swing arm. The safety limit block is rotated along the axis of the second rotating shaft and is arranged in the limit groove. The safety limit block cooperates with the limit groove to limit the safe angle range of rotation of the second rotating shaft relative to the swing arm.

12. The infant care device according to claim 1, characterized in that: The swing arm is an integrated structure, comprising an arm body, a first axial hole, a second axial hole, and a first pivot column. The first axial hole is formed at one end of the arm body, and the second axial hole is formed at the other end of the arm body. The first pivot column is protruding from the arm body, the first rotating shaft is fixed to the first axial hole, the second rotating shaft is rotatably connected to the second axial hole, and the first pivot column is connected to the first transmission mechanism.

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