Baby care equipment

Abstract

According to the baby care equipment, fixed rods in a plurality of lifting rod assemblies are relatively and fixedly connected through a base, and movable rods in the plurality of lifting rod assemblies are relatively and fixedly connected through a connecting device; the lifting rod assembly and at least part of the connecting device are covered in the containing cavity through the movable shell and the fixed shell which can be arranged in a sleeved mode, so that the modular unit is formed, the lifting rod assembly cannot be exposed when ascending and descending, and the modular unit can be small in size, attractive in appearance and low in cost. The supporting legs are connected with the base, and the seat frame is connected with the connecting device, so that the lifting rod assembly does not need to be disassembled during transportation, the supporting stability provided by the lifting rod assembly is high and the lifting rod assembly does not shake easily when the baby care equipment is normally used, and the overall size of the baby care equipment can be reduced to a large extent during transportation; and the overall comprehensive performance of the baby care equipment is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of infant and child products, and in particular to an infant and child care device. Background Art

[0002] Infant care equipment is used to care for infants and young children, alleviating the stress of caregivers. Common infant care equipment includes high chairs, rocking chairs, and cribs. These are increasingly popular with consumers, who are also placing higher demands on them. Infant care equipment is relatively large. To facilitate transportation, it needs to be disassembled or folded to reduce its size. Furthermore, a lifting mechanism is required to support the lifting of infant care equipment.

[0003] Among the existing liftable baby care equipment, some use a single lifting mechanism to support the seat frame (such as Chinese Patent 202210629642.2). However, when using a single lifting mechanism for support, the lifting mechanism has relatively high requirements for its own strength, connection strength, torsional strength and other performance. For example, high-performance pneumatic rods and other components are generally used, which will result in a higher overall cost. There are also some that use multiple lifting mechanisms to support the seat frame, such as using four lifting rod assemblies to support the four corners around the seat frame (such as Chinese Patent CN201610718331.8), or using two lifting rod assemblies arranged at large intervals along the length direction of the seat frame to support the bottom of the seat frame (such as Chinese Patent CN202020532632.3, the two lifting rod assemblies have good stability). However, since the distance between the lifting rod assemblies is relatively far, if each lifting rod assembly is individually detachable from the seat frame and the support legs, it will make it difficult to reassemble after disassembly and transportation due to The existence of multiple disassembly and assembly points in the lifting rod assembly can easily reduce the supporting stability of the lifting rod assembly and make it easy to shake. If the stability after assembly is to be ensured, the structure of the lifting rod assembly itself and the structure of the disassembly and assembly points need to be strengthened, which in turn will increase its cost; if the lifting rod assembly is set in a non-detachable manner, the overall packaging of the infant care equipment will be larger due to the long distance between the lifting rod assemblies. Even if the seat frame and support legs are folded or retracted, the overall volume reduction is extremely limited, which is not convenient for transportation; moreover, the lifting rod assemblies are all exposed, which is not beautiful.

[0004] Therefore, it is necessary to propose a new infant care device to solve the above technical problems. Summary of the Invention

[0005] The present invention provides an infant care device, in which the lifting rod assembly, the base, the connecting device and the shell can form a modular unit, which is small in size, beautiful and low in cost, has high support stability and is not easy to shake, is easy to reduce the overall volume for transportation, and has high overall comprehensive performance.

[0006] The technical solution adopted by the present invention to solve the problem is: A baby care device, comprising: a support leg, a base, a housing, at least two lifting rod assemblies, a connecting device, and a seat frame, wherein: The supporting legs are connected to the base, and the supporting legs are foldable or retractable or detachable from the base; At least two lifting rod assemblies support the seat frame via a connecting device. The lifting rod assemblies include a movable rod and a fixed rod that are relatively slidably arranged and can be relatively locked or unlocked. The fixed rods of the at least two lifting rod assemblies are fixedly connected to the base. The movable rods of the at least two lifting rod assemblies are fixedly connected to the connecting device. The connecting device is connected to the seat frame. The seat frame is foldable or retractable or can be detached from the connecting device. The outer shell includes a movable shell and a fixed shell that are nested together. The movable shell and the fixed shell form an accommodating cavity. The movable shell and the connecting device are relatively fixedly arranged, and the fixed shell and the base are relatively fixedly arranged. At least two lifting rod assemblies and at least part of the connecting device are located in the accommodating cavity.

[0007] The infant care equipment provided by the present invention realizes a relatively fixed connection between the fixed rods in multiple lifting rod assemblies through a base, realizes a relatively fixed connection between the movable rods in multiple lifting rod assemblies through a connecting device, and utilizes a movable shell and a fixed shell that can be nested to cover the lifting rod assembly and at least part of the connecting device in its accommodating cavity, thereby forming a modular unit, which will not be exposed when the lifting rod assembly is raised or lowered. The modular unit can be set to be very small, beautiful and low in cost, and then connected to the base through supporting feet and to the connecting device through a seat frame, wherein the supporting feet are foldable or retractable or detachable from the base, and the seat frame is foldable or retractable or detachable from the connecting device. The lifting rod assembly does not need to be disassembled during transportation, ensuring that the support provided by the lifting rod assembly is highly stable and not easy to shake when the infant care equipment is in normal use, and ensuring that the overall volume of the infant care equipment can be reduced to a large extent during transportation, thereby greatly improving the overall comprehensive performance of the infant care equipment.

[0008] Furthermore, two lifting rod assemblies are provided, and the arrangement direction of the two lifting rod assemblies is set at an angle to the length direction of the seat frame, and the arrangement direction of the two lifting rod assemblies is also set at an angle to the width direction of the seat frame.

[0009] Furthermore, the base is located in the accommodating cavity.

[0010] Furthermore, a first slot is provided on the base, and a first through hole corresponding to the position of the first slot is provided on the peripheral side of the fixed shell. After the supporting foot passes through the first through hole, it can be detachably inserted into the first slot to form a fixed connection.

[0011] Furthermore, the base includes a first base body, a second base body and a fixed connecting member, and the first base body and the second base body are fixedly connected via the fixed connecting member.

[0012] Furthermore, the fixed connection piece is U-shaped, the first base body is provided with an arc groove engaged with the fixed connection piece, and the second base body is provided with two second slots plugged with the fixed connection piece.

[0013] Furthermore, the first base and the second base are respectively provided with a third slot for inserting the fixing rod.

[0014] Furthermore, it also includes a reinforcing mechanism located in the accommodating cavity, the reinforcing mechanism is connected to the connecting device, the reinforcing mechanism can be raised and lowered with the connecting device, and the reinforcing mechanism can be used to support the inner side wall of the movable shell or the inner side wall of the fixed shell.

[0015] Furthermore, the reinforcing mechanism includes a reinforcing sleeve connected to the connecting device, and the circumferential side wall of the reinforcing sleeve can be used to slide against the inner wall of the movable shell or the circumferential side wall of the reinforcing sleeve can be used to slide against the inner wall of the fixed shell.

[0016] Furthermore, the reinforcement sleeve is provided with a second through hole for the fixed rod and / or the movable rod to pass through.

[0017] Furthermore, the reinforcement sleeve is slidably arranged on the connecting device according to a preset stroke, and a second reset member is provided between the reinforcement sleeve and the connecting device. When the reinforcement sleeve descends to a low position along with the connecting device so that the reinforcement sleeve abuts against the base, the base can push the reinforcement sleeve to compress the second reset member.

[0018] Furthermore, the connecting device includes a connecting part, a mounting seat and a driving mechanism. The connecting part is fixedly connected to at least two movable rods, the driving mechanism is arranged on the connecting part, the connecting part and the driving mechanism are both located in the movable shell, the output end of the driving mechanism passes through the movable shell and is connected to the mounting seat, and the seat frame is connected to the mounting seat.

[0019] Furthermore, the seat frame and the mounting seat are detachably connected.

[0020] Furthermore, it also includes a first locking and unlocking mechanism, which is used to lock or unlock the mounting seat and the connecting part. When the first locking and unlocking mechanism locks the mounting seat and the connecting part, it prevents the driving mechanism from driving the seat frame to move.

[0021] Furthermore, the first locking and unlocking mechanism includes a first rotating member, a first locking block, and a first resetting member. The first rotating member is pivotally connected to the mounting seat, and also includes an insert block and a fourth slot that are plugged in together. One of the insert block and the fourth slot is provided on the first rotating member, and the other of the insert block and the fourth slot is provided on the connecting part. The first locking block is movably arranged on the first rotating member, and the first resetting member is arranged between the first rotating member and the first locking block, and also includes a first locking tongue and a first locking groove that are plugged in together. One of the first locking tongue and the first locking groove is provided on the first locking block, and the other of the first locking tongue and the first locking groove is provided on the connecting part. When the first locking tongue is plugged in with the first lock groove, the insert block is restricted in the fourth slot, thereby preventing the driving mechanism from driving the seat frame to move.

[0022] Furthermore, the driving mechanism includes a swinging portion, which is pivotally connected to the connecting portion. The mounting seat swings along with the swinging portion, causing the seat frame to swing relative to the connecting portion.

[0023] Furthermore, the driving mechanism also includes a first motor, the swinging part includes a swing arm, a rotating shaft, a limiting part, and a limiting slot, one end of the swing arm swings back and forth around the first pivot axis relative to the connecting part, the first motor is arranged at the connecting part and is used to drive the swing arm to swing, the rotating shaft is pivoted to the other end of the swing arm and swings with the swing arm, one end of the rotating shaft passes through the movable shell and is fixed to the mounting seat, the other end of the rotating shaft is fixed to the limiting part, the limiting slot is arranged on the connecting part, the limiting part cooperates with the limiting slot, and the limiting part can move relative to the limiting slot to limit the rotation angle of the rotating shaft relative to the swing arm.

[0024] Furthermore, the limiting groove is movably arranged relative to the connecting portion, and also includes a swing mode adjustment mechanism for adjusting the position of the limiting groove.

[0025] Furthermore, the swing mode adjustment mechanism includes a connecting handle, a first switch assembly, a first transmission member, and a first locking and unlocking portion. The lower end of the connecting handle is connected to the limiting slot, the first switch assembly is connected to the upper end of the connecting handle, and the first switch assembly is located at the upper end of the movable shell. The first locking and unlocking portion is arranged between the limiting slot and the connecting portion, and the first transmission member is respectively connected to the first switch assembly and the first locking and unlocking portion.

[0026] Furthermore, the first locking and unlocking part includes a locking member and a plurality of second locking slots arranged on the connecting part. The locking member is connected to the first transmission member. The locking member is movably connected to the limiting slot or the connecting handle. The locking member can be locked with different second locking slots to adjust the limiting slot to different positions.

[0027] Furthermore, the first locking and unlocking portion further includes a third resetting member, which is arranged between the locking member and the limiting groove or between the locking member and the connecting handle.

[0028] Furthermore, the first switch assembly is movably connected to the upper end of the connecting handle, and the first switch assembly is also movably connected to the connecting portion.

[0029] Furthermore, the connecting part includes a switch box, the first switch assembly includes a switch connector, an adapter, and a first switch, the adapter is hinged to the upper end of the connecting handle, the adapter is also slidably connected to the switch connector, the switch connector is slidably connected to the switch box, the first switch is hinged to the switch connector, the first switch is connected to the first transmission member, and the upper end of the movable shell is provided with an avoidance groove for exposing the first switch.

[0030] Furthermore, the connecting part includes a first connecting member, a second connecting member, and a U-shaped tube. The first connecting member is connected to the upper end of a movable rod, the second connecting member is connected to the upper end of another movable rod, and both ends of the U-shaped tube face upward and are respectively connected to the first connecting member and the second connecting member.

[0031] Furthermore, the lifting rod assembly also includes a second locking and unlocking mechanism, which includes a second locking and unlocking part, a second transmission member, and a second switch assembly. The second locking and unlocking part is arranged between the movable rod and the fixed rod, one end of the second transmission member is connected to the second locking and unlocking part, and the other end of the second transmission member is connected to the second switch assembly. The second switch assembly is arranged on the connecting device.

[0032] Furthermore, the second switch assembly includes a protective handle, a second switch, and a fifth reset member. A receiving groove for accommodating the rotation and retraction of the protective handle is provided on the connecting device. The protective handle and the second switch are coaxially rotated in the receiving groove. The fifth reset member is provided between the protective handle and the second switch. The protective handle has an open state and a retracted state. When the protective handle is in the open state, the protective handle drives the second switch to rotate outward and expose. At this time, the second switch can be operated and the second locking and unlocking part is driven by the second transmission member, so that the second locking and unlocking part releases the lock of the movable rod and the fixed rod; when the protective handle is in the retracted state, the protective handle drives the second switch to rotate inward and hide, thereby preventing the operation of the second switch, so that the second locking and unlocking part keeps the movable rod and the fixed rod locked and cannot be raised or lowered.

[0033] Furthermore, the second switch assembly also includes a first slider and a second slider. The connecting device is provided with a first slide groove that slides with the first slider and a second slide groove that slides with the second slider. The second switch can be used to drive the first slider to slide, and the first slider can be used to drive the second slider to slide. The second slider is connected to the other end of the second transmission member.

[0034] Furthermore, the movable rod is slidably sleeved on the outside of the fixed rod, the reinforcement sleeve is slidably mounted on the movable rod, and a limiting member for supporting the reinforcement sleeve is provided on the movable rod. A second reset member is provided between the reinforcement sleeve and the connecting device. When the reinforcement sleeve descends to a low position with the connecting device so that the reinforcement sleeve is against the base, the base can push the reinforcement sleeve to slide upward so that the reinforcement sleeve disengages from the limiting member and compresses the second reset member.

[0035] Furthermore, there are several second return members, the reinforcement sleeve is provided with several first spring grooves, the connecting device is provided with several second spring grooves, one end of the second return member is inserted into the first spring groove, and the other end of the second return member is inserted into the second spring groove.

[0036] Furthermore, a third locking and unlocking mechanism is included, and the third locking and unlocking mechanism is used to lock or unlock the seat frame and the mounting seat.

[0037] Furthermore, the mounting seat is provided with a first sliding plug-in portion, and the seat frame is provided with a second sliding plug-in portion, the first sliding plug-in portion and the second sliding plug-in portion can be plugged and matched, and the third locking and unlocking mechanism includes a second locking block, a third locking block, a linkage block, and a third switch, the second locking block, the third locking block, and the linkage block are all movably arranged on the mounting seat, the second locking block, the third locking block, and the linkage block are linked and matched, the third switch is arranged on the seat frame, and the seat frame is also provided with a second lock hole that matches the second lock block and a third lock hole that matches the third lock block, the third switch can drive the second lock block to disengage from the second lock hole, and at the same time, the second lock block drives the third lock block to disengage from the third lock hole through the linkage block, thereby completing the unlocking between the seat frame and the mounting seat.

[0038] Furthermore, the linkage block is slidably arranged on the mounting seat along the first direction, and the second locking block and the third locking block are both slidably arranged on the mounting seat along the second direction, the first direction and the second direction are perpendicular to each other, a first linkage oblique groove and a second linkage oblique groove are provided on the linkage block, the second locking block is provided with a first protrusion that can slide in the first linkage oblique groove, and the third locking block is provided with a second protrusion that can slide in the second linkage oblique groove, and also includes a sixth reset member, the sixth reset member is arranged between the linkage block and the mounting seat, the sixth reset member can elastically drive the linkage block to slide in the first direction so that the linkage block drives the second locking block and the third locking block to extend from both sides of the mounting seat respectively.

[0039] Furthermore, the mount includes a bottom connecting plate, the second sliding plug-in portion, the third switch, the second lock hole and the third lock hole are all arranged on the bottom connecting plate, and the mounting seat supports the bottom connecting plate when the first sliding plug-in portion is plugged into the second sliding plug-in portion.

[0040] Furthermore, the third switch includes a push piece, a third slider, and an eighth reset piece. The push piece is slidably provided on the bottom connecting plate and can cooperate with the second locking block. The third slider is slidably provided on the push piece. The eighth reset piece is arranged between the push piece and the third slider. The third slider has an extended state and a retracted state; when the third slider is in the extended state, the third slider can be pressed against the outer wall of the bottom connecting plate to prevent the push piece from sliding, thereby preventing the second locking block and the third locking block from being unlocked; when the third slider is in the retracted state, the third slider is disengaged from the outer wall of the bottom connecting plate. At this time, the push piece can be pressed, and the push piece can drive the second locking block and the third locking block to unlock.

[0041] Furthermore, two first sliding plug-in parts are relatively arranged along the width direction of the seat frame, and two second sliding plug-in parts are relatively arranged along the width direction of the seat frame. The first sliding plug-in part is in the shape of an inverted hook extending along the length direction of the seat frame, and the second sliding plug-in part is in the shape of a hook extending along the length direction of the seat frame. The second sliding plug-in part can be slidably connected to the first sliding plug-in part along the length direction of the seat frame.

[0042] Furthermore, a buffer mechanism is included, which is connected between the base and the connecting device.

[0043] Furthermore, the buffer mechanism includes a buffer spring, one end of the buffer spring is connected to the connecting device, and the other end of the buffer spring is connected to the base.

[0044] Furthermore, two U-shaped tubes are provided, and the two U-shaped tubes are arranged opposite to each other. The connecting portion also includes a bearing seat, and the bearing seat is connected to the two U-shaped tubes. The driving mechanism is arranged on the bearing seat.

[0045] Furthermore, the U-shaped tube includes a horizontal tube and two vertical tubes, the two ends of the horizontal tube are respectively connected to one end of different vertical tubes, the other ends of the two vertical tubes extend upward and are respectively connected to the first connecting member and the second connecting member, and the bearing seat is connected to the two horizontal tubes.

[0046] Furthermore, the driving mechanism also includes a first motor, the swinging part includes a swing arm, a rotating shaft, a connecting device, a limiting part, and a limiting slot. One end of the swing arm swings back and forth around the first pivot axis relative to the connecting part. The first motor is arranged at the connecting part and is used to drive the swing arm to swing. The rotating shaft is pivoted to the other end of the swing arm and swings with the swing arm. One end of the rotating shaft is fixed to one end of the connecting device, and the other end of the connecting device passes through the movable shell and is fixed to the mounting seat. The connection between the connecting device and the mounting seat is close to the middle of the swing arm. The other end of the rotating shaft is fixed to the limiting part, and the limiting slot is arranged on the connecting part. The limiting part cooperates with the limiting slot. The limiting part can move relative to the limiting slot to limit the rotation angle of the rotating shaft relative to the swing arm.

[0047] Furthermore, the adapter device includes a horizontal part and a vertical part, one end of the horizontal part is connected to one end of the rotating shaft, the other end of the horizontal part is close to the middle of the swing arm and connected to one end of the vertical part, and the other end of the vertical part passes through the movable shell and is connected to the mounting seat.

[0048] Furthermore, the driving mechanism also includes a first transmission assembly, the first transmission assembly includes a first driven wheel, a first worm, a first worm wheel, a second rotating member, and a first swinging member. The first driving wheel is fixedly connected to the output shaft of the first motor, the first worm is pivoted to the connecting part, the first driven wheel is fixed to the first worm, the first driving wheel and the first driven wheel are connected in transmission, the first worm wheel is pivoted to the connecting part and meshes with the first worm, one end of the second rotating member is fixed to the axle of the first worm wheel, the other end of the second rotating member is pivoted to one end of the first swinging member, and the other end of the first swinging member is pivoted to the swing arm.

[0049] Furthermore, the limiting groove is movably arranged relative to the connecting portion, and also includes a swing mode adjustment mechanism for adjusting the position of the limiting groove.

[0050] Furthermore, the swing mode adjustment mechanism includes a second motor and a second transmission assembly, the second transmission assembly includes a second driven wheel, a second worm, a second worm wheel, a third rotating member, and a second swinging member, a second driving wheel is fixedly connected to the output shaft of the second motor, the second worm wheel is pivoted to the connecting part, the second driven wheel is fixedly connected to the second worm wheel, the second driving wheel and the second driven wheel are transmission-connected, the second worm wheel is pivoted to the connecting part and meshes with the second worm wheel, one end of the third rotating member is fixed to the axle of the second worm wheel, the other end of the third rotating member is pivoted to one end of the second swinging member, the other end of the second swinging member is pivoted to the limiting slot, and the limiting slot is pivoted to the connecting part.

[0051] Furthermore, the swing mode adjustment mechanism is located on a first side of the swing arm, and the first motor and the first transmission assembly are located on a second side of the swing arm.

[0052] Furthermore, the movable rod is slidably sleeved on the outside of the fixed rod, and the lifting rod assembly also includes a second locking and unlocking mechanism, which includes a second locking and unlocking part, a second transmission member, and a second switch assembly. The second locking and unlocking part is arranged between the movable rod and the fixed rod, one end of the second transmission member is connected to the second locking and unlocking part, and the other end of the second transmission member is connected to the second switch assembly. The second switch assembly is arranged on the base or the support foot or the fixed shell.

[0053] Furthermore, the second switch assembly includes a switch pedal, a fourth rotating member, and a seventh reset member. The fourth rotating member is pivotally connected to the base in the horizontal direction, the other end of the second transmission member is connected to the fourth rotating member, the seventh reset member is arranged between the base and the fourth rotating member, and the switch pedal is pivotally connected to the fourth rotating member in the vertical direction. The switch pedal has an open state and a retracted state; when the switch pedal is in the open state, the switch pedal rotates outward relative to the fourth rotating member and is exposed. At this time, the switch pedal can be stepped on so that the switch pedal drives the fourth rotating member to rotate relative to the base, and the fourth rotating member drives the second locking and unlocking part through the second transmission member, so that the second locking and unlocking part releases the lock of the movable rod and the fixed rod; when the switch pedal is in the retracted state, the switch pedal rotates inward relative to the fourth rotating member and is hidden under the base.

[0054] Furthermore, a spring positioning pin is provided on the rotating seat, and at least one pin hole matching the spring positioning pin is provided on the switch pedal. When the switch pedal is in the open state, the spring positioning pin can be embedded in the pin hole to position the switch pedal. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 This is a schematic structural diagram of an infant care device according to Embodiment 1 of the present invention; Figure 2 This is a partial explosion diagram of the infant care device according to Example 1 of the present invention; Figure 3 for Figure 2 A partial enlarged schematic diagram of part A shown; Figure 4 This is a partial exploded schematic diagram of the infant care device of Example 1 of the present invention after the seat frame and support legs are removed; Figure 5 This is a partial cross-sectional schematic diagram of the infant care device of Example 1 of the present invention with the seat frame, housing and support legs removed; Figure 6 for Figure 5 The partial enlarged schematic diagram of part B shown; Figure 7 for Figure 6 A structural schematic diagram of the first locking and unlocking mechanism shown in FIG. 1 is in a locked state; Figure 8 This is a partial exploded schematic diagram of the infant care device of Example 1 of the present invention after the seat frame, outer shell and support legs are removed; Figure 9 This is an exploded schematic diagram of the base of Example 1 of the present invention; Figure 10 Schematic diagram of an explosion of the connecting device, the reinforcing mechanism and the swing mode adjustment mechanism of Example 1 of the present invention; Figure 11 It is a partial cross-sectional schematic diagram of the reinforcing mechanism of Example 1 of the present invention in a buffering state; Figure 12 This is a structural diagram of the swing mode adjustment mechanism, the limiting groove and the second connecting member connected to Example 1 of the present invention; Figure 13 A partially exploded schematic diagram of the swing mode adjustment mechanism and the limiting groove according to Example 1 of the present invention; Figure 14 This is a schematic structural diagram of the second connecting member of Example 1 of the present invention; Figure 15 Schematic cross-sectional view of a lifting rod assembly according to embodiment 1 of the present invention; Figure 16 for Figure 15 A partial enlarged view of section C is shown; Figure 17 This is an exploded schematic diagram of the second locking and unlocking portion of Example 1 of the present invention; Figure 18 This is an exploded schematic diagram of the second switch assembly, the movable rod, and the first connecting member of Example 1 of the present invention; Figure 19 This is an exploded schematic diagram of the second switch assembly of Example 1 of the present invention; Figure 20 A partial cross-sectional schematic diagram of the second switch assembly in a retracted state on the first connecting member according to embodiment 1 of the present invention; Figure 21 A partial cross-sectional schematic diagram of the second switch assembly in an open state on the first connecting member according to embodiment 1 of the present invention; Figure 22 This is a partial cross-sectional schematic diagram of the second switch assembly in embodiment 1 of the present invention in an open state on the first connecting member and after the second switch is pressed; Figure 23 This is a schematic structural diagram of an infant care device according to embodiment 2 of the present invention; Figure 24 This is a partial explosion diagram of the infant care device according to Example 2 of the present invention; Figure 25 This is a partial exploded schematic diagram of the infant care device of Example 2 of the present invention after the seat frame and support legs are removed; Figure 26 This is a partial cross-sectional schematic diagram of a baby care device according to embodiment 2 of the present invention; Figure 27 for Figure 26 A partial enlarged schematic diagram of the D portion; Figure 28 This is a second partial cross-sectional schematic diagram of the infant care device according to Example 2 of the present invention; Figure 29 for Figure 28 A partial enlarged schematic diagram of part E; Figure 30Schematic cross-sectional view of the bottom connecting plate and the mounting base after disassembly according to Example 2 of the present invention; Figure 31 Schematic diagram of an explosion of the third locking and unlocking mechanism of Example 2 of the present invention; Figure 32 This is a schematic structural diagram of the infant care device according to Example 2 of the present invention, with the seat frame, housing, and support legs removed; Figure 33 This is a partial explosion diagram of the connecting device of Example 2 of the present invention after the mounting base is removed; Figure 34 A partially exploded schematic diagram of the driving mechanism, the swing mode adjustment mechanism, and the supporting base of Example 2 of the present invention; Figure 35 A partial exploded schematic diagram of the limiting groove, the swing mode adjustment mechanism, and the supporting base of Example 2 of the present invention; Figure 36 A partial cross-sectional schematic diagram of a lifting rod assembly and a base according to Example 2 of the present invention; Figure 37 for Figure 36 A partial enlarged schematic diagram of part F; Figure 38 This is an exploded schematic diagram of the second locking and unlocking mechanism of Example 2 of the present invention; Figure 39 This is a schematic structural diagram of the infant care device according to Example 2 of the present invention, with the outer shell removed and the limiting member located on the left side of the limiting groove during combined swinging; Figure 40 This is a schematic structural diagram of the infant care device according to Example 2 of the present invention, with the outer shell removed and the limiting member located on the right side of the limiting groove during combined swinging; Figure 41 This is a schematic structural diagram of a switch pedal in an open state according to embodiment 2 of the present invention; Figure 42 This is a structural diagram of the switch pedal in embodiment 2 of the present invention when it is in a folded state.

[0056] The meanings of the reference numerals are as follows: 1. Support foot; 2. Base; 21. First seat; 211. Arc groove; 22. Second seat; 221. Second slot; 23. Fixed connector; 24. First slot; 25. Third slot; 3. Outer shell; 31. Movable shell; 311. Cylindrical shell; 312. Left upper cover; 313. Right upper cover; 314. Arc through hole; 315. Avoidance groove; 32. Fixed shell; 321. First through hole; 4. Lifting rod assembly; 41. Movable rod; 411. Lower block; 412. Fourth lock hole; 42. Fixed rod; 421. Upper block; 422. First lock hole; 43. Second locking and unlocking mechanism; 431. Second locking and unlocking part; 4311. Lifting lock block; 43111. First protrusion; 4312. Lifting Slider; 43121, first inclined groove; 4313, fourth reset member; 432, second transmission member; 433, second switch assembly; 4331, protective handle; 43311, abutment groove; 4332, second switch; 43321, spring abutment piece; 43322, first shift block; 4333, first slider; 43331, second shift block; 43332, second inclined groove; 4334, second slider; 43341, second protrusion; 4335, fifth reset member; 4336, switch pedal; 43361, pin hole; 4337, fourth rotating member; 4338, seventh reset member; 4339, spring positioning pin; 44, limit member; 5, connecting device; 51, connecting portion; 511, first connecting member; 511 1. Switch box; 5112. First plug rod; 512. Second connecting member; 5121. Second connecting groove; 5122. Second plug rod; 5123. Connecting seat; 5124. Motor chamber; 513. U-shaped tube; 5131. Horizontal tube; 5132. Vertical tube; 514. First slide groove; 515. Second slide groove; 516. Accommodating groove; 517. Rotating shaft; 518. Connecting plate; 519. Fixing sleeve; 52. Mounting seat; 521. Mounting hole; 522. First sliding plug-in part; 53. Driving mechanism; 531. Swinging part; 5311. Swing arm; 5312. Rotating shaft; 5313. Limiting member; 5314. Limiting groove; 5315. Adapter; 5316. Horizontal part; 5317. Vertical part; 532. A motor; 5321, a first driving wheel; 5322, a first transmission belt; 533, a first transmission assembly; 5331, a first driven wheel; 5332, a first worm; 5333, a first worm wheel; 5334, a second rotating member; 5335, a first swinging member; 54, a bearing seat; 541, a second spring slot; 55, a fixing block; 6, a seat frame; 61, a bottom connecting plate; 611, a second sliding plug-in portion; 612, a second locking hole; 613, a third locking hole; 7, a reinforcing mechanism; 71, a reinforcing sleeve; 711, a second through hole; 72, a second return member; 73, a first spring slot; 8, a first locking and unlocking mechanism; 81, a first rotating member; 82, a first locking block; 83, a first return member; 84, an insert; 85, a fourth slot;86. First lock tongue; 87. First lock slot; 9. Swing mode adjustment mechanism; 91. Connecting handle; 92. First switch assembly; 921. Switch connector; 922. Bushing; 923. Adapter; 924. First switch; 93. First transmission member; 94. Locking member; 95. Second lock slot; 96. Third reset member; 97. First locking and unlocking portion; 98. Second motor; 981. Second driving wheel; 982. Second transmission belt; 99. Second transmission assembly; 991. Second driven wheel; 992. Second worm; 993. Second worm gear; 994, third rotating member; 995, second swinging member; 100, third locking and unlocking mechanism; 101, second locking block; 1011, first boss; 102, third locking block; 1021, second boss; 103, linkage block; 1031, first linkage chute; 1032, second linkage chute; 104, third switch; 1041, push member; 1042, third slider; 1043, eighth reset member; 1044, connecting block; 105, sixth reset member; 200, buffer mechanism; 201, buffer spring. DETAILED DESCRIPTION

[0057] 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.

[0058] 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.

[0059] 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.

[0060] Example 1 See Figures 1 to 5 The present invention discloses an infant care device comprising: four supporting legs 1, a base 2, a housing 3, two lifting rod assemblies 4, a connecting device 5, and a seat frame 6. The infant care device can be specifically designed as an infant dining chair, an infant rocking chair, or an infant bed, and the seat frame 6 can be designed as a seat or bed frame for receiving an infant. In this embodiment, the infant care device is described as an infant bed, and the seat frame 6 is correspondingly a bed frame.

[0061] In this embodiment, the support leg 1 is used to support the support surface. The support leg 1 is connected to the base 2 to provide support for the base 2. The support leg 1 is foldable, retractable, or detachable from the base 2. In this embodiment, the support leg 1 is preferably detachably connected to the base 2 so that the support leg 1 can be removed from the base 2 during transportation, thereby reducing the volume during transportation. Two lifting rod assemblies 4 support the seat frame 6 through a connecting device 5. The lifting rod assembly 4 includes a movable rod 41, a fixed rod 42, and a second locking and unlocking mechanism 43. The movable rod 41 and the fixed rod 42 are arranged to slide relative to each other and can be locked or unlocked relative to each other. The fixed rods 42 of the two lifting rod assemblies 4 are both fixedly connected to the base 2, and the movable rods 41 of the two lifting rod assemblies 4 are both fixedly connected to the connecting device 5. The connecting device 5 is connected to the seat frame 6. The seat frame 6 is foldable, retractable, or detachable from the connecting device 5. In this embodiment, the seat frame 6 is preferably detachably connected to the connecting device 5 so that the seat frame 6 can be removed from the connecting device 5 during transportation, thereby reducing the volume during transportation. The outer shell 3 includes a movable shell 31 and a fixed shell 32 which are nested together. The movable shell 31 and the fixed shell 32 form an accommodating cavity. The movable shell 31 and the connecting device 5 are fixed relative to each other, and the fixed shell 32 and the base 2 are fixed relative to each other. The two lifting rod assemblies 4 and at least part of the connecting device 5 are located in the accommodating cavity.

[0062] It should be noted that the number of support legs 1 can also be one, two, three, five, etc., and this embodiment does not limit the number of support legs 1. When the number of support legs 1 is one or two, the structure of the support legs 1 needs to be modified accordingly to meet the support requirements (in this case, the support legs 1 of the shape shown in the embodiment cannot be used). Since the inventive concept of the present invention does not lie in the shape of the support legs 1, no additional examples are given here.

[0063] It should be noted that the number of lift rod assemblies 4 can also be three, four, etc. This embodiment does not impose a limitation on the number of lift rod assemblies 4, and the number of lift rod assemblies 4 can be two or more. In this way, using at least two lift rod assemblies 4 to provide lifting support for the seat frame 6 helps reduce the performance requirements of the lift rod assemblies 4 while ensuring support stability, thereby reducing the overall cost of the lifting structure.

[0064] The baby care equipment provided by the present invention comprises a supporting foot 1 supporting the base 2, the base 2 supporting the lifting rod assembly 4, and the lifting rod assembly 4 supporting the seat frame 6 through a connecting device 5. When the height of the seat frame 6 needs to be adjusted, the movable rod 41 and the fixed rod 42 are unlocked, and the seat frame 6 is lifted up or pressed down to adjust the height. During the height adjustment process, the supporting foot 1, the base 2, the fixed rod 42, and the fixed shell 32 remain stationary, and the movable rod 41, the connecting device 5, the seat frame 6, and the movable shell 31 are lifted and lowered together; when transportation is required, the supporting foot 1 can be removed from the base 2 and the seat frame 6 can be removed from the connecting device 5, and the base 2, the shell 3, the two lifting rod assemblies 4, and the connecting device 5 can be retained as a modular unit, and the supporting foot 1, the seat frame 6, and the modular unit can be packaged and transported separately.

[0065] As needed, the optional seat frame 6 itself can be further contracted, folded, or disassembled to further reduce the volume. This embodiment does not limit the specific structure of the seat frame 6, and the inventive concept of the present invention does not lie in the specific structure of the seat frame 6, so it will not be stated here. The seat frame 6 can adopt any structure.

[0066] In this way, the above-mentioned baby care equipment realizes the relative fixed connection of the fixed rods 42 in the multiple lifting rod assemblies 4 through the base 2, realizes the relative fixed connection of the movable rods 41 in the multiple lifting rod assemblies 4 through the connecting device 5, and uses the movable shell 31 and the fixed shell 32 that can be arranged mutually to cover the lifting rod assembly 4 and at least part of the connecting device 5 in its accommodating cavity, thereby forming a modular unit, which will not be exposed when the lifting rod assembly 4 is raised or lowered, and the modular unit can be set to be very small, beautiful and low in cost, and then connected to the base 2 through the supporting foot 1. It is connected to the connecting device 5 through the seat frame 6, wherein the supporting foot 1 is foldable or retractable or detachable from the base 2, and the seat frame 6 is foldable or retractable or detachable from the connecting device 5. There is no need to disassemble the lifting rod assembly 4 during transportation. It is only necessary to remove the supporting foot 1 from the base 2 and the seat frame 6 from the connecting device 5. This ensures that the support provided by the lifting rod assembly 4 is highly stable and not easy to shake when the infant care equipment is in normal use, and ensures that the overall volume of the infant care equipment can be reduced to a large extent during transportation, thereby greatly improving the overall comprehensive performance of the infant care equipment.

[0067] It should be noted that when the supporting leg 1 adopts a foldable or retractable structure and the seat frame 6 adopts a foldable or retractable structure, during transportation, the size of the reduced volume of the supporting leg 1 and the seat frame 6 is easily affected by the above-mentioned modular unit. Since the volume of the modular unit can be set very small, after the seat frame 6 and the supporting leg 1 are folded or retracted, their overall volume can also be reduced to a large extent, which can also facilitate transportation.

[0068] Of course, during transportation, other methods can be used to reduce the space occupied by the seat frame 6 and the support legs 1 so as to reduce the overall volume of the infant care equipment for transportation.

[0069] See Figure 4 、 Figure 5 and Figure 8 Based on the aforementioned arrangement of two lifting rod assemblies 4, preferably, the arrangement direction of the two lifting rod assemblies 4 is set at an angle to the length direction of the seat frame 6, and the arrangement direction of the two lifting rod assemblies 4 is also set at an angle to the width direction of the seat frame 6. It can also be understood that the two lifting rod assemblies 4 are arranged at diagonal intervals. When an infant lies on the infant care device, they may deviate from the center position of the seat frame 6 due to factors such as turning over, which will cause the center of gravity of the load to shift. The two lifting rod assemblies 4 arranged at diagonal intervals can provide support on both sides along the length direction of the seat frame 6 and along the width direction of the seat frame 6. Compared with an arrangement along the length or width direction of the seat frame 6, the two lifting rod assemblies 4 arranged in this way have better force and are more stable while ensuring the overall cost of the lifting mechanism is low.

[0070] It should be noted that the seat frame 6 of this embodiment is preferably rectangular. Of course, the seat frame 6 can also be elliptical or have arc shapes at both ends of the length of the seat frame 6. Such a seat frame 6 also has a length direction and a width direction.

[0071] See Figure 2 and Figure 4 Preferably, the base 2 is also located in the accommodating cavity, thereby further improving the overall aesthetics of the modular unit. The shielding effect of the fixed shell 32 can also prevent dust, water, etc. from entering the base 2, and can also prevent the structure of the base 2 from cutting the packaging film during transportation packaging.

[0072] See Figure 2 、 Figure 4 and Figure 9 Preferably, to facilitate the installation of the support leg 1 on the base 2, a first slot 24 is provided on the base 2, and a first through-hole 321 is provided on the circumference of the fixing shell corresponding to the position of the first slot 24. Since there are four support legs 1, there are also four first slots 24 and four first through-holes 321. After the support leg 1 passes through the first through-holes 321, it can be detachably inserted into the first slot 24 and a fixed connection can be formed. After the support leg 1 is inserted into the first slot 24, the fixed connection between the support leg 1 and the base 2 can be achieved by screwing, snapping, or locking.

[0073] Specifically, the base 2 includes a first base body 21, a second base body 22, and a fixed connection member 23. The first base body 21 and the second base body 22 are fixedly connected by the fixed connection member 23. Preferably, the fixed connection member 23 is U-shaped, and the first base body 21 is provided with an arc-shaped groove 211 that engages with the fixed connection member 23, and the second base body 22 is provided with two second slots 221 that are plugged into the fixed connection member 23.

[0074] Since there are four first slots 24, two first slots 24 are provided on the first base 21, and two first slots 24 are provided on the second base 22. Furthermore, since there are two lifting rod assemblies 4, third slots 25 are provided on the first base 21 and the second base 22, respectively. The third slots 25 can be used to insert the fixing rod 42. After the fixing rod 42 is inserted into the third slots 25, it can be further secured by attaching screws, snapping, or locking.

[0075] In this way, the fixed connector 23 is used to connect the first base body 21 and the second base body 22, which can ensure the strength of the base 2 and save costs, and the fixed connector 23 is set to a U-shape, which can provide torsional strength. When assembling the base 2, the arcuate portion of the fixed connector 23 can be embedded in the arcuate groove 211 of the first base body 21 and fixed by the attached screws, and the two rod end portions of the fixed connector 23 can be inserted into the second slot 221 of the second base body 22 and fixed by the attached screws, which is convenient for assembly.

[0076] See Figure 4 and Figure 5 In this embodiment, the connecting device 5 includes a connecting portion 51, a mounting seat 52, and a driving mechanism 53. The connecting portion 51 is fixedly connected to at least two movable rods 41, and the driving mechanism 53 is arranged on the connecting portion 51. The connecting portion 51 and the driving mechanism 53 are both located in the movable shell. The output end of the driving mechanism 53 passes through the movable shell and is connected to the mounting seat 52, and the seat frame 6 is connected to the mounting seat 52. In the infant care equipment of the above scheme, in addition to connecting the two movable rods 41, the connecting portion 51 can also provide support for the driving mechanism 53. The driving mechanism 53 supports the mounting seat 52, and the mounting seat 52 in turn supports the seat frame 6. The driving mechanism 53 can be used to drive the mounting seat 52 to move, and the mounting seat 52 will also move with the seat frame 6. In this way, the functionality of the product is further increased, thereby making it more cost-effective and more popular with consumers.

[0077] Since the seat frame 6 is detachably connected to the connecting device 5, the seat frame 6 is detachably connected to the mounting base 52. Figure 3 The mounting seat 52 is provided with a mounting hole 521, and the bottom rod of the seat frame 6 can be inserted into the mounting hole 521 and fixed by attaching screws.

[0078] Of course, in other embodiments, the mounting base 52 and the seat frame 6 may be detachably connected in other ways. The inventive concept of the present invention does not lie in the specific connection method between the mounting base 52 and the seat frame 6, so no further examples are given here.

[0079] See Figure 10 、 Figure 11 and Figure 14 In this embodiment, preferably, the connecting portion 51 includes a first connecting member 511, a second connecting member 512, and a U-shaped tube 513. The first connecting member 511 is connected to the upper end of one movable rod 41, the second connecting member 512 is connected to the upper end of another movable rod 41, and both ends of the U-shaped tube 513 face upward and are respectively connected to the first connecting member 511 and the second connecting member 512. Specifically, the first connecting member 511 is provided with a first connecting groove (not shown in the figure) and a first plug rod 5112, and the second connecting member 512 is provided with a second connecting groove 5121, a second plug rod 5122, a connecting seat 5123, and a motor cavity 5124. The first plug rod 5112 is inserted from top to bottom into the upper end of one movable rod 41 and can be fixed by an attachment screw. The second plug rod 5122 is inserted from top to bottom into the upper end of another movable rod 41 and can be fixed by an attachment screw. One end of the U-shaped tube 513 is inserted into the first connecting groove The second connecting member 511 and the second connecting member 512 are connected to each other through the U-shaped tube 513. The U-shaped tube 513 is fixed to the second connecting groove 5121 and can be fixed by attaching screws. In this way, the purpose of the connecting part 51 to form a fixed connection between the two movable rods 41 is achieved, and the U-shaped tube 513 is used to connect the first connecting member 511 and the second connecting member 512, which can ensure the strength of the connecting part 51 and save costs. In addition, the U-shaped tube 513 can also be used to provide an avoidance space for the driving mechanism 53 to avoid interference between the driving mechanism 53 and the connecting part 51 when the driving mechanism 53 is in motion.

[0080] Combine Figure 8 and Figure 11Preferably, the driving mechanism 53 includes a swinging portion 531, which is pivotally connected to the connecting portion 51. The mounting seat 52 swings along with the swinging portion 531, causing the seat frame 6 to swing relative to the connecting portion 51, thereby allowing the baby care device to be used as a rocking bed. As a specific example, the driving mechanism 53 also includes a first motor 532, the swinging part 531 includes a swing arm 5311, a rotating shaft 5312, a limiting member 5313, and a limiting slot 5314. One end of the swing arm 5311 swings back and forth relative to the connecting part 51 around the first pivot axis. The first motor 532 is arranged on the connecting part 51 and is used to drive the swing arm 5311 to swing. The rotating shaft 5312 is pivoted to the other end of the swing arm 5311 and swings with the swing arm 5311. One end of the rotating shaft 5312 passes through the movable shell 31 and is fixed to the mounting seat 52. The other end of the rotating shaft 5312 is fixed to the limiting member 5313. The limiting slot 5314 is arranged on the connecting part 51. The limiting member 5313 cooperates with the limiting slot 5314. The limiting member 5313 can move relative to the limiting slot 5314 to limit the rotation angle of the rotating shaft 5312 relative to the swing arm 5311. Specifically, the first motor 532 is installed on the motor cavity 5124 in the second connecting member 512, the swing arm 5311 is fixedly connected to the output shaft of the first motor 532, and the limiting groove 5314 is connected to the connecting seat 5123 in the second connecting member 512.

[0081] In other embodiments, the swing portion 531 may also adopt a non-electric structure, such as using two parallel arranged rotating shafts 5312, with the two ends of the rotating shaft 5312 respectively hinged to the mounting seat 52 and the connecting portion 51, so as to realize manual swinging of the seat frame 6.

[0082] More preferably, based on the aforementioned driving mechanism 53, the limiting groove 5314 is movably arranged relative to the connecting part 51. Specifically, the limiting groove 5314 is hinged above the connecting seat 5123 and also includes a rocking mode adjustment mechanism 9 for adjusting the position of the limiting groove 5314, so that the rocking mode adjustment mechanism 9 can be used to realize a variety of rocking modes of the baby care equipment when the rocking bed is used.

[0083] See Figures 12 to 14As a specific example, the swing mode adjustment mechanism 9 includes a connecting handle 91, a first switch assembly 92, a first transmission member 93, and a first locking and unlocking portion 97. The lower end of the connecting handle 91 is connected to the limiting groove 5314, and the first switch assembly 92 is connected to the upper end of the connecting handle 91. The first switch assembly 92 is located at the upper end of the movable shell 31. In this way, the first switch assembly 92 can be located at a relatively high position by utilizing the function of the connecting handle 91. In particular, the first switch assembly 92 can be located at the upper end of the movable shell 31, so that the first switch assembly 92 will not interfere with the fixed shell 32, and will not affect the lifting stroke of the seat frame 6. The seat frame 6 can be designed to be lowered lower; the first locking and unlocking portion 97 is arranged between the limiting groove 5314 and the connecting portion 51, and the first transmission member 93 is respectively connected to the first switch assembly 92 and the first locking and unlocking portion 97.

[0084] Specifically, the first locking and unlocking portion 97 includes a locking member 94, a plurality of second locking grooves 95 arranged on the connecting portion 51, and a third reset member 96. The locking member 94 is movably connected to the limiting groove 5314 or the connecting handle 91. The first transmission member 93 is connected between the first switch assembly 92 and the locking member 94. The locking member 94 can be locked with different second locking grooves 95 to adjust the limiting groove 5314 to different positions. The third reset member 96 is arranged between the locking member 94 and the limiting groove 5314 or the third reset member 96 is arranged between the locking member 94 and the connecting handle 91. The function of the third reset member 96 is to drive the locking member 94 to reset so that the locking member 94 is locked with the corresponding second locking groove 95.

[0085] Of course, in other embodiments, the first locking and unlocking portion 97 may not be provided with a reset member, but a reset member may be provided in the first switch assembly 92 to indirectly drive the locking member 94 to reset.

[0086] In this embodiment, preferably, the first switch assembly 92 is movably connected to the upper end of the connecting handle 91. The first switch assembly 92 is also movably connected to the connecting portion 51. After the first switch assembly 92 drives the first locking and unlocking portion 97 to unlock via the first transmission member 93, the first switch assembly 92 can be driven to move relative to the connecting portion 51, so that the first switch assembly 92 drives the connecting handle 91, causing the connecting handle 91 to move relative to the connecting portion 51 with the limiting groove 5314, thereby adjusting the position of the limiting groove 5314. Preferably, the first switch assembly 92 is slidably connected to the connecting portion 51, the first switch assembly 92 is hinged to the upper end of the connecting handle 91, and the first switch assembly 92 can also move a distance relative to the upper end of the connecting handle 91 (such as linear sliding or arc sliding), causing the limiting groove 5314 to rotate relative to the connecting portion 51. In this way, the sliding movement of the first switch assembly 92 can be converted into a rotational movement of the connecting handle 91, so that the connecting handle 91 drives the limiting groove 5314 to rotate, thereby adjusting the position of the limiting groove 5314.

[0087] Specifically, the connecting portion 51 includes a switch box 5111, and the special switch box 5111 is installed on the first connecting member 511. The first switch assembly 92 includes a switch connecting member 921, a sleeve 922, an adapter 923, and a first switch 924. The adapter 923 is hinged to the upper end of the connecting handle 91. The sleeve 922 relatively restricts the adapter 923 and the connecting handle 91 to avoid loosening between the adapter 923 and the connecting handle 91. The adapter 923 is also slidingly connected to the switch connecting member 921, and the switch connecting member 921 is slidingly connected to the switch box 5111. The first switch 924 is hinged to the switch connecting member 921. The first switch 924 is connected to the first transmission member 93. The upper end of the movable shell 31 is provided with an avoidance groove 315 for exposing the first switch 924. Among them, the first transmission member 93 is preferably a cable, the first switch 924 is connected to one end of the first transmission member 93, one end of the locking member 94 is hinged below the limiting groove 5314, and the other end of the locking member 94 is connected to the other end of the first transmission member 93, the third reset member 96 is preferably a spring, and the second locking groove 95 is specifically arranged on the second connecting member 512, and multiple second locking grooves 95 are arranged in a circular arc along the rotating axis 5312 line between the limiting groove 5314 and the connecting seat 5123. When the position of the limit slot 5314 needs to be adjusted, the first switch 924 is rotated, and the first switch 924 drives the lock member 94 to rotate upward through the first transmission member 93, so that the lock member 94 compresses the third reset member 96 and the lock member 94 is disengaged from the corresponding second lock slot 95 to complete the unlocking. Then, the first switch 924 is pushed to push the first switch 924 and the switch connector 921 to slide relative to the switch box 5111. The switch connector 921 drives the connecting handle 91 through the adapter 923, wherein the connecting handle 91 and the adapter 923 generate relative rotation and transfer. The member 923 and the switch connecting member 921 slide relative to each other, causing the connecting handle 91 to rotate relative to the connecting seat 5123 with the limiting groove 5314 until the locking member 94 is aligned with the second locking groove 95 of the new target, and then the first switch 924 is released. The locking member 94 is inserted into the second locking groove 95 under the drive of the third reset member 96 to complete the locking. Among them, since the connecting handle 91 and the adapter 923 rotate relative to each other, and the adapter 923 and the switch connecting member 921 slide relative to each other, interference between the first switch assembly 92 and the connecting handle 91 can be avoided during adjustment.

[0088] See Figure 3 、 Figures 5 to 7, based on that the driving mechanism 53 can drive the seat frame 6 to move, in order to make the seat frame 6 have an active state and a fixed state, it is preferably also included. The first locking and unlocking mechanism 8 is used to lock or unlock between the mounting seat 52 and the connecting part 51. When the first locking and unlocking mechanism 8 locks the mounting seat 52 and the connecting part 51, it prevents the driving mechanism 53 from driving the seat frame 6 to move. In this way, the function of the product is further increased, thereby making it more cost-effective and more popular with consumers.

[0089] As a specific example, the first locking and unlocking mechanism 8 includes a first rotating member 81, a first locking block 82, and a first resetting member 83. The first rotating member 81 is pivotally connected to the mounting seat 52, and also includes an insert block 84 and a fourth slot 85 that are plugged in together. The first rotating member 81 is provided with an insert block 84, and the connecting part 51 is provided with a fourth slot 85. The first locking block 82 is movably provided on the first rotating member 81, and the first resetting member 83 is provided between the first rotating member 81 and the first locking block 82. It also includes a first locking tongue 86 and a first locking groove 87 that are plugged in together. The first locking block 82 is provided with a first locking tongue 86, and the connecting part 51 is provided with a first locking groove 87. When the first locking tongue 86 is plugged in with the first locking groove 87, the insert block 84 is restricted in the fourth slot 85, thereby preventing the driving mechanism 53 from driving the seat frame 6 to move. Specifically, the fourth slot 85 and the first locking slot 87 are both provided on the upper surface of the first connecting member 511. A pre-tightening force can be generated between the first rotating member 81 and the mounting seat 52 by adding a rubber pad or interference fit, so that after applying an external force to rotate the first rotating member 81, the first rotating member 81 and the mounting seat 52 can be relatively positioned, or a torsion spring or other structure can be provided between the first rotating member 81 and the mounting seat 52 to keep the first rotating member 81 rotating upward and returning to its original position; the first locking block 82 is slidably provided on the first rotating member 81, and the two first locking blocks 82 are connected by a cross bar. The first locking slot 87 is located in the fourth slot On the inner wall of 85, the first reset member 83 is preferably a spring. When the first rotating member 81 rotates downward to insert the insert block 84 into the fourth slot 85, the fourth slot 85 can push the first locking tongue 86 to make the first locking block 82 slide and compress the first reset member 83. Of course, the cross bar can also be manually driven to drive the first locking block 82 to slide and compress the first reset member 83 until the first locking tongue 86 is aligned with the first locking groove 87. Under the action of the first reset member 83, the first locking tongue 86 can be inserted into the first locking groove 87, thereby restricting the insert block 84 in the fourth slot 85, thereby preventing the driving mechanism 53 from driving the seat frame 6 to move.

[0090] Of course, the setting objects of the insert block 84 and the fourth slot 85 can also be interchanged, that is, the insert block 84 can be set on the connecting part 51, and the fourth slot 85 can be correspondingly set on the first rotating member 81; similarly, the setting objects of the first lock tongue 86 and the first lock groove 87 can also be interchanged, that is, the first lock tongue 86 can be set on the connecting part 51, and the first lock groove 87 can be correspondingly set on the first lock block 82.

[0091] See Figure 8 、 Figure 10 、 Figure 11 and Figure 14 In this embodiment, a reinforcing mechanism 7 is further included within the accommodating cavity. The reinforcing mechanism 7 is connected to the connecting device 5 and can be raised or lowered along with the connecting device 5. The reinforcing mechanism 7 can be used to support the inner sidewall of the movable shell 31 or the inner sidewall of the fixed shell 32. In this way, the reinforcing mechanism 7 provides support for the outer shell 3, preventing deformation of the outer shell 3 caused by lateral impact or extrusion during transportation.

[0092] It can be understood that the reinforcing mechanism 7 can directly support the inner side wall of the movable shell 31 or the inner side wall of the fixed shell 32; or, when the outer shell 3 is subjected to impact or extrusion, resulting in a small amount of deformation, the reinforcing mechanism 7 then supports the inner side wall of the movable shell 31 or the inner side wall of the fixed shell 32, that is, the reinforcing mechanism 7 can maintain a certain gap with the inner side wall of the movable shell 31 or the inner side wall of the fixed shell 32, and the gap is eliminated when a small amount of deformation occurs in the outer shell 3, so that the reinforcing mechanism 7 forms a supporting role.

[0093] Specifically, the reinforcement mechanism 7 includes a reinforcement sleeve 71 connected to the connecting device 5. The circumferential side walls of the reinforcement sleeve 71 can be used to slide against the inner side wall of the movable shell 31 or against the inner wall of the fixed shell 32. During installation, the reinforcement sleeve 71 can be positioned at the lower open end of the movable shell 31 or at the upper open end of the fixed shell 32, thereby utilizing the reinforcement sleeve 71 to provide more comprehensive support for the outer shell 3. Similarly, the circumferential side walls of the reinforcement sleeve 71 can directly abut against the inner side wall of the movable shell 31 or against the inner side wall of the fixed shell 32, thereby forming direct support; alternatively, the circumferential side walls of the reinforcement sleeve 71 can maintain a removable gap with the inner side wall of the movable shell 31 or against the inner side wall of the fixed shell 32, thereby providing support after a small amount of deformation of the outer shell 3.

[0094] For ease of understanding, in this embodiment, preferably, the movable shell 31 is arranged outside the fixed shell 32, so as to prevent water or dust from entering the accommodating cavity through the gap between the movable shell 31 and the fixed shell 32. At this time, the circumferential side wall of the reinforcement sleeve 71 will slide against the inner wall of the fixed shell 32, and the reinforcement sleeve 71 first provides a supporting force to act on the fixed shell 32, and then uses the fixed shell 32 to indirectly provide a supporting force to act on the movable shell 31, thereby forming an overall support for the outer shell 3.

[0095] Of course, in other examples, when the fixed shell 32 is arranged outside the movable shell 31, the circumferential side wall of the reinforcement sleeve 71 will slide against the inner side wall of the movable shell 31 accordingly, and the reinforcement sleeve 71 first provides a supporting force to the movable shell 31, and then uses the movable shell 31 to indirectly provide a supporting force to the fixed shell 32, thereby forming an overall support for the outer shell 3.

[0096] Preferably, a second through hole 711 is provided on the reinforcing sleeve 71 for the fixed rod 42 and / or the movable rod 41 to pass through. In this way, the reinforcing sleeve 71 can make use of the function of the fixed rod 42 or the movable rod 41 to make the reinforcing sleeve 71 less likely to deform and provide better support. At the same time, the reinforcing sleeve 71 can also reversely limit the torsion of the fixed rod 42 or the movable rod 41, making the seat frame 6 more stable.

[0097] More preferably, in order to allow the seat frame 6 to be lowered lower, the reinforcement sleeve 71 is slid on the connecting device 5 according to a preset stroke, and the reinforcement mechanism 7 also includes a second reset member 72, which is connected between the reinforcement sleeve 71 and the connecting device 5. When the reinforcement sleeve 71 is lowered to a low position along with the connecting device 5 so that the reinforcement sleeve 71 is against the base 2, the base 2 can push the reinforcement sleeve 71 to compress the second reset member 72. When the cam 72 is in the unlock position, the locking cam 73 is in the unlock position, and the locking cam 73 is in the unlock position, so that the cam 73 is locked and the locking cam 73 is locked.

[0098] Specifically, based on the structure of the aforementioned connecting device 5, the connecting part 51 also includes a connecting plate 518 and a fixing sleeve 519, wherein the connecting plate 518 is connected to the bottom of the connecting seat 5123 in the first connecting member 511, and the fixing sleeve 519 is connected to the bottom of the connecting plate 518. The reinforcing sleeve 71 is slidably sleeved outside the fixing sleeve 519, and the reinforcing sleeve 71 can slide up and down relative to the fixing sleeve 519. Moreover, a limiting structure such as a step matching structure or a limiting block can be provided between the reinforcing sleeve 71 and the fixing sleeve 519 to limit the reinforcing sleeve 71 from detaching from the fixing sleeve 519. The second reset member 72 is preferably a spring, and the upper end of the second reset member 72 abuts against the bottom of the connecting plate 518, and the upper end of the second reset member 72 abuts against the top of the reinforcing sleeve 71.

[0099] See Figure 5 、 Figure 8 、 Figures 15 to 22 In this embodiment, the second locking and unlocking mechanism 43 includes a second locking and unlocking portion 431, a second transmission member 432, and a second switch assembly 433. The second locking and unlocking portion 431 is arranged between the movable rod 41 and the fixed rod 42. One end of the second transmission member 432 is connected to the second locking and unlocking portion 431, and the other end of the second transmission member 432 is connected to the second switch assembly 433. The second switch assembly 433 is arranged on the connecting device 5. Specifically, the second switch assembly 433 of one lifting rod assembly 4 is arranged on the first connecting member 511, and the other lifting rod assembly 4 is arranged on the first connecting member 511. The second switch assembly 433 of a lifting rod assembly 4 is disposed on the second connecting member 512. Compared to disposing the second switch assembly 433 on the housing 3, using the connecting device 5 (specifically, the first connecting member 511 or the second connecting member 512) to mount and support the second switch assembly 433 allows the second switch assembly 433 to be positioned higher. This does not affect the raising and lowering of the lifting assembly, allowing the seat frame to be lowered. Compared to disposing the second switch assembly 433 on the seat frame 6, this solution is less expensive and more aesthetically pleasing. Preferably, the second transmission member 432 is a cable.

[0100] See Figure 18 and Figure 19, taking the second switch assembly 433 being provided on the first connecting member 511 as an example, as a specific example, the second switch assembly 433 includes a protective handle 4331, a second switch 4332, a first slider 4333, a second slider 4334, and a fifth reset member 4335. The first connecting member 511 is provided with a first sliding groove 514 that slides with the first slider 4333, a second sliding groove 515 that slides with the second slider 4334, and an accommodating groove 516 for accommodating the rotation and retraction of the protective handle 4331. The protective handle 4331 and the second switch 4332 are coaxially rotatable around the rotating shaft 517 on the first connecting member 511 and are arranged in the accommodating groove 516. The fifth reset member 4335 is provided between the protective handle 4331 and the second switch 4332. The second switch 4332 can be used to drive the first slider 43 The first slider 4333 can be used to drive the second slider 4334 to slide. The second slider 4334 is connected to the other end of the second transmission member 432. The protective handle 4331 has an open state and a retracted state. When the protective handle 4331 is in the open state, the protective handle 4331 drives the second switch 4332 to rotate outward and expose it. At this time, the second switch 4332 can be operated and the second locking and unlocking part 431 is driven by the second transmission member 432, so that the second locking and unlocking part 431 releases the lock on the movable rod 41 and the fixed rod 42. When the protective handle 4331 is in the retracted state, the protective handle 4331 drives the second switch 4332 to rotate inward and hide it, thereby preventing the second switch 4332 from being operated, so that the second locking and unlocking part 431 remains locked and prevents the movable rod 41 and the fixed rod 42 from being raised or lowered. In this way, when the protective handle 4331 is retracted, it can be stored in the receiving slot 516 with the second switch 4332, reducing the packaging space, making the packaged volume smaller, and the appearance more beautiful.

[0101] Specifically, the protective handle 4331 is provided with an abutment groove 43311, the second switch 4332 is provided with a spring abutment piece 43321 and a first shift block 43322, the first slider 4333 is provided with a second shift block 43331 and a second inclined groove 43332, the second slider 4334 is provided with a second protrusion 43341, the fifth reset member 4335 is preferably a spring, one end of the fifth reset member 4335 abuts against the front side wall of the abutment groove 43311, the spring abutment piece 43321 is located in the abutment groove 43311 and can rotate relatively in the abutment groove 43311, and the rear side wall of the abutment groove 43311 can abut against the spring abutment piece 43321, so that when the protective handle 4331 is rotated outward to open, it can be driven by the abutment cooperation between the abutment groove 43311 and the spring abutment piece 43321. The second switch 4332 is rotated outward to be exposed, and the second protrusion 43341 is inserted into the second oblique groove 43332 and can slide on the second oblique groove 43332. The first selector block 43322 can push the second selector block 43331 when the second switch 4332 is rotated to a certain angle, thereby causing the first slider 4333 to slide (the specific condition is: after the protective handle 4331 drives the second switch 4332 to rotate outward to be exposed, and then presses the second switch 4332 to rotate). The sliding of the first slider 4333 can drive the second slider 4334 to slide under the cooperation of the second protrusion and the second oblique groove 43332, and then drive the second transmission member 432 through the second slider 4334, and the second transmission member 432 then acts on the second locking and unlocking portion 431, so that the movable rod 41 and the fixed rod 42 are unlocked.

[0102] Combine Figures 20 to 22 For ease of understanding, the specific operation process of the second switch component 433 is as follows: Figure 20 The schematic diagram of the protective handle 4331 in the folded state is shown. At this time, the protective handle 4331 is rotated to make it enter the open state from the folded state. During this process, the rear side wall of the abutment groove 43311 pushes the spring abutment piece 43321, so that the second switch 4332 can rotate along with the protective handle 4331, so that the second switch 4332 rotates outward and is exposed. Although the first dial block 43322 rotates along with the second switch 4332, the first dial block 43322 has not yet abutted against the second dial block 43331, that is, the first slider 4333 and the second slider 4334 remain stationary, and the protective handle 4331 is opened. Figure 21The protective handle 4331 is shown in a schematic diagram in an open state. Since the second switch 4332 is exposed, the second switch 4332 can be pressed at this time. In the process of pressing the second switch 4332, the second switch 4332 rotates a second time to compress the fifth reset member 4335, and the first dial block 43322 gradually begins to push the second dial block 43331, causing the first slider 4333 to slide. The first slider 4333 drives the second slider 4334 to slide under the cooperation of the second protrusion and the second inclined groove 43332. When the second slider 4334 slides, it can drive the second locking and unlocking part 431 through the second transmission member 432 to release the lock on the movable rod 41 and the fixed rod 42, completing the unlocking and entering. Figure 22 Schematic diagram of pressing the second switch 4332 is shown.

[0103] It can be understood that in order to install and carry the second switch assembly 433 of the second lifting rod assembly 4, the second connecting member 512 will also be provided with a first sliding groove 514, a second sliding groove 515, and a receiving groove 516. The specific installation method and switching action of the second switch assembly 433 on the second connecting member 512 can be referred to the above description and will not be repeated here.

[0104] Of course, in other examples, the driving cooperation between the second switch 4332 and the second transmission member 432 can also be other ways, such as: there is no first slider 4333 and the second slider 4334, the second switch 4332 is connected to the other end of the second transmission member 432, when the second switch 4332 is pressed to rotate the second switch 4332 relative to the protective handle 4331, the second switch 4332 applies a pulling force to the second transmission member 432, so that the second locking and unlocking portion 431 is driven by the second transmission member 432 to release the lock of the movable rod 41 and the fixed rod 42, and the unlocking is completed. At this time, the cable protection cover of the second transmission member 432 can be installed on the protective handle 4331, so that when the protective handle 4331 carries the second switch 43 32 are rotated to open or close together (that is, when the second switch 4332 is not pressed to rotate the second switch 4332 relative to the protective handle 4331), no pulling force is generated on the second transmission member 432; or, there is a first slider 4333 but no second slider 4334. At this time, the first slider 4333 is connected to the other end of the second transmission member 432. When the second switch 4332 is pressed to rotate the second switch 4332 relative to the protective handle 4331, the second switch 4332 drives the first slider 4333 to slide, and the first slider 4333 applies a pulling force to the second transmission member 432, thereby driving the second locking and unlocking portion 431 through the second transmission member 432 to release the lock on the movable rod 41 and the fixed rod 42, thereby completing the unlocking.

[0105] In comparison, the advantage of combining the first slider 4333 and the second slider 4334 in this embodiment is that during the rotation and opening and closing of the protective handle 4331, there is no need to move the second transmission member 432 together, and the arrangement of the second transmission member 432 can be simpler, reducing bending and friction, making the switch operation smoother.

[0106] It should be noted that the present invention does not limit the specific structure of the second locking and unlocking portion 431, and any structure that can achieve locking or unlocking of the movable rod 41 and the fixed rod 42 can be used. For ease of understanding, the second locking and unlocking portion 431 can adopt the following structure: See Figures 15 to 17 The lower end of the movable rod 41 is provided with a lower blocking block 411, and the upper end of the fixed rod 42 is provided with an upper blocking block 421. The lower blocking block 411 is slidably arranged in the fixed rod 42, and the upper blocking block 421 can be used to limit the lower blocking block 411 from separating from the fixed rod 42. The side wall of the fixed rod 42 is also provided with a plurality of first locking holes 422 arranged in the vertical direction. The second locking and unlocking part 431 includes a lifting lock block 4311, a lifting slider 4312, and a fourth reset member 4313. The lifting lock block 4311 is horizontally slidably arranged on the lower block 411, the lifting lock block 4311 can be plugged into the first lock hole 422, the lifting slider 4312 is vertically slidably arranged on the lower block 411, a first protrusion 43111 is provided on one side of the lifting lock block 4311, and a first inclined groove 43121 is provided on the lifting slider 4312, the first protrusion 43111 and the first inclined groove 43121 cooperate, and the fourth reset member 4313 is preferably a spring and is arranged between the lower block 411 and When the second switch assembly 433 is released, the lifting slider 4312 slides downward and is reset under the elastic force of the fourth restoring member 4313, and the lifting slider 4312 drives the lifting lock block 4311 to slide in the opposite direction under the cooperation of the first protrusion 43111 and the first inclined groove 43121, so that the lifting lock block 4311 is disengaged from the first lock hole 422 and is unlocked. At this time, the movable rod 41 can be lifted and lowered relative to the fixed rod 42. When the second switch assembly 433 is released, the lifting slider 4312 slides downward and is reset under the elastic force of the fourth restoring member 4313, and the lifting slider 4312 drives the lifting lock block 4311 to slide in the opposite direction under the cooperation of the first protrusion 43111 and the first inclined groove 43121, so that the lifting lock block 4311 is inserted into the first lock hole 422 and is locked.

[0107] See Figure 3 and Figure 4In order to facilitate the assembly of the movable shell 31, preferably, the movable shell 31 includes a cylindrical shell 311, a left upper cover 312 and a right upper cover 313 passing through the upper and lower ends. When assembling the modular unit, the outer shell 3 can be put into the last assembly, wherein the cylindrical shell 311 can be installed from bottom to top and connected to the connecting part 51, and then the left upper cover 312 and the right upper cover 313 are horizontally installed to the cylindrical shell 311 respectively and form a fixed connection (by screwing, snapping or locking, etc.), thereby avoiding interference between the movable shell 31 and the mounting base 52 when assembling the movable shell 31. At the same time, it is also convenient to design various avoidance spaces on the movable shell 31. For example, an arc-shaped through hole 314 may be provided at the top of the movable shell 31, and the arc-shaped through hole 314 may be specifically surrounded by the left upper cover 312 and the right upper cover 313. The arc-shaped through hole 314 is for the rotating shaft 5312 to pass through and provides a swinging avoidance space for the rotating shaft 5312; for example, a through groove for avoiding the protective handle 4331 may be provided on the circumferential outer side of the movable shell 31, and the through groove may be specifically surrounded by the cylindrical shell 311, the left upper cover 312 and the right upper cover 313; for example, an avoidance groove 315 is provided on the left upper cover 312.

[0108] Example 2 See Figures 23 to 25 This embodiment also discloses a baby care device. The difference between the baby care device of this embodiment and the baby care device of Example 1 lies in: the different detachable connection method between the seat frame 6 and the mounting seat 52; the mounting seat 52 and the rotating shaft 5312 are connected by a connecting device 5315; the arrangement directions of the two lifting rod assemblies 4 are different and the specific structure of the connecting part 51 is different; the movable rod 41 is slidably connected to the outside of the fixed rod 42, the second locking and unlocking mechanism 43 is different, the connection method of the reinforcement sleeve 71 is different; the specific structure of the base 2 is different; the specific transmission method of the first motor 532 and the swing arm 5311 is different, the swing mode adjustment mechanism 9 is different; and it also includes a buffer mechanism 200.

[0109] Similar to the first embodiment, the baby care device of this embodiment can also realize the relative fixed connection of the fixed rods 42 in the multiple lifting rod assemblies 4 through the base 2, realize the relative fixed connection of the movable rods 41 in the multiple lifting rod assemblies 4 through the connecting device 5, and use the movable shell 31 and the fixed shell 32 that can be arranged together to cover the lifting rod assembly 4 and at least part of the connecting device 5 in its accommodating cavity, thereby forming a modular unit. When the lifting rod assembly 4 is raised or lowered, it will not be exposed. The modular unit can be set to be very small, beautiful and low in cost, and then connected to the support foot 1. The base 2 is connected and connected to the connecting device 5 through the seat frame 6, wherein the supporting foot 1 is foldable or retractable or detachable from the base 2, and the seat frame 6 is foldable or retractable or detachable from the connecting device 5. There is no need to disassemble the lifting rod assembly 4 during transportation. It is only necessary to remove the supporting foot 1 from the base 2 and the seat frame 6 from the connecting device 5. This ensures that the support provided by the lifting rod assembly 4 is highly stable and not easy to shake when the infant care equipment is in normal use, and ensures that the overall volume of the infant care equipment can be reduced to a large extent during transportation, greatly improving the overall comprehensive performance of the infant care equipment.

[0110] In this way, this embodiment can also solve the same technical problem as shown in Example 1 and achieve the same technical effect as shown in Example 1.

[0111] In order to shorten the article, the following will not repeat the technical features of this embodiment that are the same as those of Example 1, but only the differences will be described.

[0112] See Figures 26 to 31 In this embodiment, to achieve a detachable connection between the seat frame 6 and the mounting seat 52, as a preferred solution, the mounting seat 52 is provided with a first sliding plug portion 522, and the seat frame 6 is provided with a second sliding plug portion 611. The first sliding plug portion 522 and the second sliding plug portion 611 are pluggable. Specifically, the seat frame 6 includes a bottom connecting plate 518, and the second sliding plug portion 611 is provided on the bottom connecting plate 518. When the first sliding plug portion 522 and the second sliding plug portion 611 are plugged together, the mounting seat 52 supports the bottom connecting plate 518. This can improve support stability by utilizing the larger contact area between the mounting seat 52 and the bottom connecting plate 518.

[0113] In order to avoid possible shaking after insertion, it is further preferred that the first sliding insertion part 522 is in the shape of an inverted hook extending along the length direction of the seat frame 6, and the second sliding insertion part 611 is in the shape of a hook extending along the length direction of the seat frame 6. There are two first sliding insertion parts 522 and two second sliding insertion parts 611. The two first sliding insertion parts 522 are arranged opposite to each other along the width direction of the seat frame 6, and the two second sliding insertion parts 611 are also arranged opposite to each other along the width direction of the seat frame 6. The second sliding insertion part 611 can be slidably inserted into the first sliding insertion part 522 along the length direction of the seat frame 6. In this way, the first sliding insertion part 522 and the second sliding insertion part 611 are hooked with each other, thereby providing a torsional force arm when the seat frame 6 is twisted along the width direction, further improving the stability of the seat frame 6.

[0114] See also Figures 26 to 31 In this embodiment, a third locking and unlocking mechanism 100 is also included. The third locking and unlocking mechanism 100 is used to lock or unlock the seat frame 6 and the mounting seat 52. Preferably, the third locking and unlocking mechanism 100 includes a second lock block 101, a third lock block 102, a linkage block 103, and a third switch 104. The second lock block 101, the third lock block 102, and the linkage block 103 are all movably arranged on the mounting base 52. The second lock block 101, the third lock block 102, and the linkage block 103 cooperate with each other. The third switch 104 is arranged on the seat frame 6. The seat frame 6 is also provided with a second lock hole 612 that cooperates with the second lock block 101 and a third lock hole 613 that cooperates with the third lock block 102. Specifically, the third switch 104, the second lock hole 612, and the third lock hole 613 are all arranged on the bottom connecting plate 518. The third switch 104 can drive the second lock block 101 to disengage from the second lock hole 612. At the same time, the second lock block 101 drives the third lock block 102 to disengage from the third lock hole 613 through the linkage block 103, thereby completing the unlocking between the seat frame 6 and the mounting base 52. In this way, the locking or unlocking between the seat frame 6 and the mounting seat 52 is achieved by driving the double locking blocks with a switch, which is easy to operate and highly safe.

[0115] Specifically, the linkage block 103 is slidably arranged on the mounting seat 52 along the first direction, and the second locking block 101 and the third locking block 102 are both slidably arranged on the mounting seat 52 along the second direction, wherein the first direction can be specifically the length direction of the seat frame 6, and the second direction can be specifically the width direction of the seat frame 6, a first linkage oblique groove 1031 and a second linkage oblique groove 1032 are provided on the linkage block 103, the second locking block 101 is provided with a first protrusion 1011 that can slide in the first linkage oblique groove 1031, and the third locking block 102 is provided with a second protrusion 1021 that can slide in the second linkage oblique groove 1032, and also includes a sixth reset member 105, the sixth reset member 105 is arranged between the linkage block 103 and the mounting seat 52, the sixth reset member 105 is preferably a spring, and the sixth reset member 105 can elastically drive the linkage block 103 to slide in the first direction so that the linkage block 103 drives the second locking block 101 and the third locking block 102 to extend from both sides of the mounting seat 52 respectively.

[0116] See Figure 27 and Figure 31 It can be understood that in order to avoid obstruction when the first sliding plug-in portion 522 and the second sliding plug-in portion 611 are plugged in and assembled, the second locking block 101 and the third locking block 102 can be respectively provided with inclined surfaces, so that when plugged in, the bottom connecting plate 518 can use the inclined surfaces to push the second locking block 101 and the third locking block 102 to retract into the mounting seat 52 until the second locking block 101 corresponds to the second locking hole 612 and the third locking block 102 corresponds to the third locking hole 613. Under the elastic force of the sixth restoring member 105, the second locking block 101 is inserted into the second locking hole 612 and the third locking block 102 is inserted into the third locking hole 613, thereby completing the locking. Of course, other methods can also be used to achieve the function of causing the second locking block 101 and the third locking block 102 to retract into the mounting seat 52 during plugging, such as providing an inclined surface on the bottom connecting plate 518, etc. This embodiment does not limit how to achieve the function of causing the second locking block 101 and the third locking block 102 to retract into the mounting seat 52 during plugging.

[0117] Based on the third locking and unlocking mechanism 100, when it is necessary to unlock the seat frame 6 and the mounting seat 52, Figure 27The direction shown is for reference only, and the process is as follows: pressing the third switch 104, the third switch 104 will push the second locking block 101 to slide into the mounting seat 52, so that the second locking block 101 is disengaged from the second locking hole 612. At the same time, when the second locking block 101 slides inward, the second locking block 101 will drive the linkage block 103 to slide to the left through the sliding cooperation between the first protrusion 1011 and the first linkage oblique groove 1031. When the linkage block 103 slides to the left, the sliding cooperation between the second protrusion 1021 and the second linkage oblique groove 1032 will drive the third locking block 102 to slide and shrink into the mounting seat 52, thereby disengaging the third locking block 102 from the third locking hole 613. In this way, the double locking blocks are unlocked, and the bottom connecting plate 518 and the mounting seat 52 can be relatively disassembled.

[0118] In other preferred embodiments, the linkage block 103 can also be rotated, such as the middle part of the linkage block 103 is pivotally connected to the mounting seat 52, one end of the linkage block 103 is connected to the second locking block 101, and the other end of the linkage block 103 is connected to the third locking block 102. When the second locking block 101 slides, the linkage block 103 can be driven to rotate, and when the linkage block 103 rotates, the third locking block 102 can be pulled to slide and retract. Of course, at this time, the sixth reset member 105 is preferably a torsion spring and acts on the linkage block 103, or the sixth reset member 105 is a spring and acts on the second locking block 101 or the third locking block 102.

[0119] In other preferred embodiments, the third locking and unlocking mechanism 100 may also adopt any known structure so as to satisfy the locking or unlocking function between the frame and the mounting seat 52 , and they are not listed here one by one.

[0120] In this embodiment, in order to avoid accidental unlocking caused by accidentally touching the third switch 104, as a preferred solution, the third switch 104 includes a push member 1041, a third slider 1042, an eighth reset member 1043, and a connecting block 1044. The push member 1041 is slidably provided on the bottom connecting plate 518 and can be abutted against the second locking block 101. The third slider 1042 is slidably provided on the push member 1041. The eighth reset member 1043 is provided between the push member 1041 and the third slider 1042. The eighth reset member 1043 is preferably a spring. The connecting block 1044 is clamped on the push member 1041 and is used to limit the third slider 1042 from disengaging from the push member 1041. The third slider 1042 has an extended state and a retracted state. Specifically, the push member 1041 is slidably provided on the push member 1041 along the second direction, and the third slider 1042 is slidably provided on the push member 1041 along the vertical direction. When the third slider 1042 is in the extended state, the third slider 1042 can be pressed against the outer wall of the bottom connecting plate 518 to prevent the pushing member 1041 from sliding, thereby preventing the second locking block 101 and the third locking block 102 from being unlocked; when the third slider 1042 is in the retracted state, the third slider 1042 is disengaged from the outer wall of the bottom connecting plate 518. At this time, the pushing member 1041 can be pressed, and the pushing member 1041 can drive the second locking block 101 and the third locking block 102 to unlock. In this way, the third switch 104 is protected by the third slider 1042 , and when unlocking, two steps are required: first pressing the third slider 1042 and then pressing the push member 1041 , thereby avoiding accidental unlocking caused by mis-touch.

[0121] Of course, the third sliding block 1042 can also be slidably disposed on the pushing member 1041 along other directions, so that the third sliding block 1042 can be extended upward or extended to the left or extended to the right.

[0122] See Figure 34 and 35 In this embodiment, similar to Example 1, the swinging portion 531 includes a swinging arm 5311, a rotating shaft 5312, a limiting member 5313, and a limiting groove 5314. The technical features of the swinging arm 5311, the rotating shaft 5312, the limiting member 5313, and the limiting groove 5314 are described in the relevant description of Reference Example 1. Different from Example 1, the swinging portion 531 also includes a connecting device 5315, wherein one end of the rotating shaft 5312 is fixed to one end of the connecting device 5315, and the other end of the connecting device 5315 passes through the movable shell 31 and is fixed to the mounting seat 52, and the connection between the connecting device 5315 and the mounting seat 52 is close to the middle of the swinging arm 5311.

[0123] In the above scheme, an adapter device 5315 is provided to connect the rotating shaft 5312 and the mounting seat 52, and the connection between the adapter device 5315 and the mounting seat 52 is moved toward the middle of the swing arm 5311. While ensuring that the swing speed of the seat frame 6 is slow and the swing amplitude is large, the adapter device 5315 is used to make the connection of the mounting seat 52 located in the space in the middle of the swing arm 5311. When it is necessary to design the seat frame 6 and the shell 3 to be relatively centered, the volume of the shell 3 can be made smaller without affecting the connection of the mounting seat 52 close to the center position of the shell 3, and the center of gravity of the seat frame 6 can roughly correspond to the center position of the shell 3, so as to form a baby care device with a small shell 3, low cost, and an overall symmetrical and beautiful appearance.

[0124] On the other hand, since the connection between the adapter 5315 and the mounting seat 52 is close to the middle of the swing arm 5311, the torque of the seat frame 6 acting on the swing arm 5311 through the mounting seat 52 will also become relatively smaller, which is beneficial to reducing the rotational wear between the first pivot shaft and the swing arm 5311 or the rotational wear between the first pivot shaft and the connecting part 51. The swing arm 5311 is not easy to bend downward and deform relative to the first pivot shaft, or the swing arm 5311 and the first pivot shaft are not easy to bend downward and deform relative to the connecting part 51, thereby ensuring the balance of the seat frame 6 and preventing the seat frame 6 from sliding.

[0125] When designing the size of the shell 3, it is only necessary to consider the length of the swing arm 5311 and the necessary space occupied by other structures. At this time, the shell 3 can be made as small as possible, with high overall space utilization, and can ensure that the center of gravity of the seat frame 6, the center of the mounting seat 52, and the center of the shell 3 are roughly corresponding. At this time, the baby care equipment has a slow swing speed and a large swing amplitude. The shell 3 is small in size, and the mounting seat 52 does not need to form a protruding part to meet the stable support of the seat frame 6 when it swings. The overall symmetry, neatness and beauty meet the dual design requirements of function and appearance.

[0126] See Figure 34 The adapter 5315 includes a transverse portion 5316 and a vertical portion 5317. One end of the transverse portion 5316 is connected to one end of the rotating shaft 5312. The other end of the transverse portion 5316 is close to the center of the swing arm 5311 and connected to one end of the vertical portion 5317. The other end of the vertical portion 5317 passes through the movable housing 31 and is connected to the mounting seat 52. This connects the adapter 5315 to the rotating shaft 5312 and the mounting seat 52, facilitates the installation of the mounting seat 52 and the vertical portion 5317, and improves strength. In particular, it facilitates the detachable insertion and insertion between the mounting seat 52 and the vertical portion 5317.

[0127] In this embodiment, the horizontal portion 5316 and the vertical portion 5317 are preferably integrally bent, welded, or screwed. More preferably, the vertical portion 5317 is rod-shaped. This allows the vertical portion 5317 to have a smaller trajectory and less likely interfere with the top wall of the movable housing 31. The avoidance groove 315 on the movable housing 31 can be relatively smaller, resulting in a more aesthetically pleasing overall design and improved dustproofing.

[0128] See Figure 34 In this embodiment, the driving mechanism 53 further includes a first transmission assembly 533, and the first motor 532 and the swing arm 5311 are connected to each other through the first transmission assembly 533. A specific structure of the first transmission assembly 533 can be selected as follows: the first transmission assembly 533 includes a first driven wheel 5331, a first worm 5332, a first worm wheel 5333, a second rotating member 5334, and a first swinging member 5335. The first driving wheel 5321 is fixedly connected to the output shaft of the first motor 532, the first worm 5332 is pivotally connected to the connecting portion 51, the first driven wheel 5331 is fixedly connected to the first worm 5332, the first driving wheel 5321 and the first driven wheel 5331 are connected to each other through transmission, and the first driving wheel 5321 and the first driven wheel 5331 are preferably belt driven. The diameter of the first driven wheel 5331 is larger than the diameter of the first driving wheel 5321, the first transmission belt 5322 is wound around the first driving wheel 5321 and the first driven wheel 5331, the first worm gear 5333 is pivoted to the connecting part 51 and meshes with the first worm 5332, one end of the second rotating member 5334 is fixed to the axle of the first worm gear 5333, the other end of the second rotating member 5334 is pivoted to one end of the first swinging member 5335, and the other end of the first swinging member 5335 is pivoted to the swing arm 5311, wherein the pivot point of the second rotating member 5334 and the first swinging member 5335 deviates from the axis of the first worm gear 5333, and the pivot point of the first swinging member 5335 and the swing arm 5311 deviates from the pivot point of the swing arm 5311 and the connecting part 51. Based on the structure of the connecting portion 51 of this embodiment, the first worm 5332 , the first worm wheel 5333 , and the swing arm 5311 will be pivotally connected to the supporting base 54 in the connecting portion 51 .

[0129] In the prior art, the swing arm 5311 is driven to swing by the forward and reverse rotation of the Tongda motor. The length of the swing arm 5311 affects the swing speed of the seat frame 6. The longer the swing arm 5311, the slower the swing speed of the seat frame 6, and the shorter the swing arm 5311, the faster the swing speed of the seat frame 6. Because the swing speed of the seat frame 6 needs to be controlled to be slower, the swing arm 5311 is generally made longer, resulting in a larger overall volume. In this way, compared with the prior art, the first transmission assembly 533 of this embodiment can achieve a high transmission ratio and directly control the swing speed of the swing arm 5311. The swing arm 5311 can be designed to be shorter, and the child is more comfortable when sitting on the seat frame 6 and swinging. In addition, the worm gear can be used to achieve self-locking. When the seat frame 6 needs to be locked, no additional locking mechanism is required. This saves costs; when the first motor 532 is started, the first motor 532 drives the first driving wheel 5321 to rotate, the first driving wheel 5321 drives the first driven wheel 5331 to rotate through the first transmission belt 5322, the first driven wheel 5331 drives the first worm 5332 to rotate, the first worm 5332 drives the first worm gear 5333 to rotate, the first worm gear 5333 drives the second rotating member 5334 to rotate, the second rotating member 5334 drives the first swinging member 5335 to swing, the first swinging member 5335 drives the swing arm 5311 to swing, thereby driving the seat frame 6 to swing back and forth relative to the connecting part 51; when the first motor 532 stops, the seat frame 6 can be fixed at a preset position to further meet more needs of consumers.

[0130] It should be noted that, in other embodiments, the first transmission assembly 533 may also adopt any known structure so as to realize the function of the first motor 532 driving the seat frame 6 to swing back and forth. The specific structure of the first transmission assembly 533 is not limited here.

[0131] See Figures 32 to 35 In this embodiment, similar to Example 1, the limiting groove 5314 is movably arranged relative to the connecting portion 51. Specifically, the limiting groove 5314 is hinged above the supporting seat 54 and also includes a swing mode adjustment mechanism 9 for adjusting the position of the limiting groove 5314, so that the swing mode adjustment mechanism 9 can be used to realize a variety of swinging modes of the baby care device when the rocking bed is used.

[0132] Different from Example 1, the preferred solution of the swing mode adjustment mechanism 9 adopted in this embodiment is as follows: the swing mode adjustment mechanism 9 includes a second motor 98 and a second transmission assembly 99. The second transmission assembly 99 includes a second driven wheel 991, a second worm 992, a second worm wheel 993, a third rotating member 994, and a second swinging member 995. A second driving wheel 981 is fixedly connected to the output shaft of the second motor 98. The second worm 992 is pivotally connected to the connecting portion 51. The second driven wheel 991 is fixedly connected to the second worm 992. The second driving wheel 981 and the second driven wheel 991 are transmission-connected. The second driving wheel 981 and the second driven wheel 991 are preferably pulleys, and the diameter of the second driven wheel 991 is larger than that of the second driving wheel. The diameter of the wheel 981 is 1 / 4 of the diameter of the wheel 981. The second transmission belt 982 is wound around the second driving wheel 981 and the second driven wheel 991. The second worm gear 993 is pivotally connected to the connecting portion 51 and meshes with the second worm 992. One end of the third rotating member 994 is fixed to the axle of the second worm gear 993. The other end of the third rotating member 994 is pivotally connected to one end of the second swinging member 995. The other end of the second swinging member 995 is pivotally connected to the limiting groove 5314. The limiting groove 5314 is pivotally connected to the connecting portion 51. The pivot point between the third rotating member 994 and the second swinging member 995 is offset from the axis of the second worm gear 993. The pivot point between the second swinging member 995 and the limiting groove 5314 is offset from the pivot point between the limiting groove 5314 and the connecting portion 51. Based on the structure of the connecting portion 51 of this embodiment, the second worm 992, the second worm gear 993, and the limiting groove 5314 will be pivotally connected to the supporting seat 54 in the connecting portion 51.

[0133] In this way, a high transmission ratio is achieved and self-locking can be achieved by using the worm gear. When the limit slot 5314 needs to be locked, no additional locking mechanism is required, thereby saving costs. When the second motor 98 is started, the second motor 98 drives the second driving wheel 981 to rotate. The second driving wheel 981 drives the second driven wheel 991 to rotate through the second transmission belt 982. The second driven wheel 991 drives the second worm 992 to rotate. The second worm 992 drives the second worm wheel 993 to rotate. The second worm wheel 993 drives the third rotating member 994 to rotate. The third rotating member 994 drives the second swinging member 995 to swing. The second swinging member 995 drives the limit slot 5314 to swing, thereby changing the position of the limit slot 5314, thereby changing the rotation amplitude of the rotating shaft 5312 relative to the swing arm 5311, and then causing the rotating shaft 5312 to drive the seat frame 6 to deflect, thereby increasing the swing mode of the seat frame 6. When the second motor 98 stops, the limit slot 5314 can be fixed at a preset position.

[0134] See Figure 32 and Figure 33To fully utilize space, it is further preferred that the swing mode adjustment mechanism 9 is located on a first side of the swing arm 5311, and the first motor 532 and the first transmission assembly 533 are located on a second side of the swing arm 5311. This arrangement of the first motor 532, the first transmission assembly 533, and the swing mode adjustment mechanism 9 fully utilizes the space on both sides of the swing arm 5311, thereby facilitating weight distribution, saving height space, and avoiding interference, thereby reducing the size of the housing 3 and achieving a more neat and aesthetically pleasing appearance.

[0135] See Figure 39 and Figure 40 Based on the above scheme, the first motor 532 can be selected to drive the seat frame 6 alone, or the second motor 98 can be selected to drive the seat frame 6 alone, or the first motor 532 and the second motor 98 can drive the seat frame 6 at the same time, thereby increasing the swing mode of the baby care device.

[0136] See Figure 24 、 Figure 25 and Figure 32 In this embodiment, the arrangement direction of the two lifting rod assemblies 4 is in the same direction as the length direction of the initial position of the seat frame 6. Of course, this is only a preference made based on the solution of the driving mechanism 53 of this embodiment.

[0137] See Figure 32 and Figure 36 Unlike Example 1, in which the travel of the reinforcement sleeve 71 is limited by the connecting device 5, in this embodiment, the travel of the reinforcement sleeve 71 is limited by the movable rod 41. The movable rod 41 is slidably sleeved on the outside of the fixed rod 42, and the reinforcement sleeve 71 is slidably mounted on the movable rod 41. The movable rod 41 is provided with a limiter 44 for supporting the reinforcement sleeve 71. A second return member 72 is provided between the reinforcement sleeve 71 and the connecting device 5. When the reinforcement sleeve 71 descends to the lower position along with the connecting device 5 so that the reinforcement sleeve 71 abuts against the base 2, the base 2 can push the reinforcement sleeve 71 upward, causing the reinforcement sleeve 71 to disengage from the limiter 44 and compress the second return member 72.

[0138] Specifically, the reinforcing sleeve 71 is provided with a second through hole 711 for the movable rod 41 to pass through, and the limiting member 44 is supported at the lower end of the second through hole 711. In this way, the reinforcing sleeve 71 can use the effect of the movable rod 41 to make the reinforcing sleeve 71 less likely to deform and the supporting effect better. At the same time, the reinforcing sleeve 71 can also reversely limit the torsion of the movable rod 41, making the seat frame 6 more stable.

[0139] As for the function of the reinforcement sleeve 71, as described in Example 1, the circumferential side walls of the reinforcement sleeve 71 can be used to slide against the inner side walls of the movable shell 31 or against the inner side walls of the fixed shell 32. During installation, the reinforcement sleeve 71 can be located at the lower open end of the movable shell 31 or at the upper open end of the fixed shell 32, so as to utilize the reinforcement sleeve 71 to provide more comprehensive support for the outer shell 3. Similarly, the circumferential side walls of the reinforcement sleeve 71 can directly abut against the inner side walls of the movable shell 31 or against the inner side walls of the fixed shell 32, thereby forming direct support; alternatively, the circumferential side walls of the reinforcement sleeve 71 can maintain a removable gap with the inner side walls of the movable shell 31 or against the inner side walls of the fixed shell 32, thereby providing support after a small amount of deformation of the outer shell 3.

[0140] When the reinforcing sleeve 71 abuts against the limit member 44, the reinforcing sleeve 71 is at the lower stroke point, and when the reinforcing sleeve 71 abuts against the connecting device 5, the reinforcing sleeve 71 is at the upper stroke point. In this way, the reinforcing sleeve 71 has an upper stroke point and a lower stroke point relative to the movable rod 41, and thus also has an upper stroke point and a lower stroke point relative to the connecting device 5. The size of the preset stroke is determined according to needs. The second reset member 72 can keep the reinforcing sleeve 71 at the lower stroke point, so that when the seat frame 6 rises to the highest position, the circumferential side wall of the reinforcing sleeve 71 can also abut against the upper opening of the fixed shell 32 well. The inner wall at the end is not required to specially raise the fixed shell 32. If the fixed shell 32 is raised, since the movable shell 31 is sleeved outside the fixed shell 32, it will affect the seat frame 6 and prevent it from descending lower; and when the seat frame 6 is lowered to the lowest position, the base 2 can push the reinforcement sleeve 71 to slide upward relative to the movable rod 41 and the connecting device 5 to compress the second reset member 72, and the reinforcement sleeve 71 will not hinder the descent of the seat frame 6. In this way, while ensuring the supporting effect of the reinforcement sleeve 71 on the outer shell 3, the seat frame 6 can be lowered lower to meet more usage needs of consumers.

[0141] More preferably, four second return members 72 are provided, and the second return members 72 are preferably springs. The reinforcement sleeve 71 is provided with four first spring grooves 73, and the connecting device 5 is provided with four second spring grooves 541. One end of the second return member 72 is inserted into the first spring groove 73, and the other end of the second return member 72 is inserted into the second spring groove 541. In this way, the first spring groove 73 and the second spring groove 541 can be used to position the second return member 72, so that the second return member 72 is not easy to loosen, and preferably the four second return members 72 are located at four corners to form a balanced elastic force to keep the reinforcement sleeve 71 level.

[0142] Of course, the number of the second restoring members 72 can also be two, three, five, six, etc., and the specific number of the second restoring members 72 is not limited here.

[0143] See Figure 32 and Figure 36 Similar to Example 1, in this embodiment, the second locking and unlocking mechanism 43 also includes a second locking and unlocking portion 431, a second transmission member 432, and a second switch assembly 433. The second locking and unlocking portion 431 is disposed between the movable rod 41 and the fixed rod 42. One end of the second transmission member 432 is connected to the second locking and unlocking portion 431, and the other end of the second transmission member 432 is connected to the second switch assembly 433. Unlike Example 1, based on the movable rod 41 being slidably sleeved on the outside of the fixed rod 42, the second switch assembly 433 is disposed on the base 2, the support leg 1, or the fixed housing 32, wherein the second switch assembly 433 is preferably disposed on the base 2.

[0144] In the prior art, the second switch assembly 433 is generally arranged on the seat frame 6. Since the seat frame 6 is swingable, the second transmission member 432 needs to pass through the movable shell 31 and extend upward to the seat frame 6. Therefore, the second transmission member 432 needs to be relatively long. Moreover, since the seat frame 6 is swingable and detachable, interference is likely to occur when the seat frame 6 swings, and the second transmission member 432 also needs to be made into two detachable parts. The structure will be more complicated, inconvenient to operate, costly, and not beautiful.

[0145] In this embodiment, the movable rod 41 is slidably connected to the outside of the fixed rod 42, and the second switch assembly 433 is set on the base 2, so that the second transmission member 432 does not need to move with it when the lifting rod assembly 4 is raised or lowered, which is beneficial to the wiring of the second transmission member 432, that is, it avoids the problem of interference when the seat frame 6 swings, and is easy to operate. The second transmission member 432 can also be made shorter, which saves costs and is more beautiful.

[0146] See Figures 36 to 38 ,as well as Figure 41 and Figure 42As can be seen, based on the sliding sleeve of the movable rod 41 on the outside of the fixed rod 42, different from the embodiment 1, the side wall of the fixed rod 42 will no longer need to be provided with a plurality of first lock holes 422 arranged in the vertical direction, but a plurality of fourth lock holes 412 arranged in the vertical direction are provided on the side wall of the movable rod 41. In addition, in the second locking and unlocking portion 431, the lifting lock block 4311 will be horizontally slidably arranged on the upper block 421 in the fixed rod 42, and the lifting lock block 4311 can be engaged with the first locking block 421. The four lock holes 412 are plugged into each other, and the lifting slider 4312 will also slide vertically on the upper block 421 in the fixed rod 42. The fourth reset member 4313 will also be set between the upper block 421 in the fixed rod 42 and the lifting slider 4312, or the fourth reset member 4313 will be set between the upper block 421 in the fixed rod 42 and the lifting lock block 4311. The fourth reset member 4313 can provide elastic force to restore the lifting slider 4312 and the lifting lock block 4311.

[0147] When the second switch assembly 433 is operated, the second switch assembly 433 drives the lifting slider 4312 to slide downward through the second transmission member 432, and the lifting slider 4312 drives the lifting lock block 4311 to slide under the cooperation of the first protrusion 43111 and the first inclined groove 43121, so that the lifting lock block 4311 disengages from the fourth lock hole 412 to complete the unlocking. At this time, the movable rod 41 can be raised and lowered relative to the fixed rod 42. When the second switch assembly 433 is released, under the elastic force of the fourth reset member 4313, the lifting lock block 4311 slides in the opposite direction and inserts into the fourth lock hole 412 to complete the locking, and the lifting slider 4312 slides upward to reset.

[0148] Specifically, the second switch assembly 433 includes a switch pedal 4336, a fourth rotating member 4337, and a seventh reset member 4338. The fourth rotating member 4337 is pivotally connected to the base 2 in the horizontal direction. The other end of the second transmission member 432 is connected to the fourth rotating member 4337. The seventh reset member 4338 is arranged between the base 2 and the fourth rotating member 4337. The switch pedal 4336 is pivotally connected to the fourth rotating member 4337 in the vertical direction. The switch pedal 4336 has an open state and a retracted state. Figure 32 and Figure 41 As shown, when the switch pedal 4336 is in the open state, the switch pedal 4336 rotates outward relative to the fourth rotating member 4337 and is exposed. At this time, the switch pedal 4336 can be stepped on so that the switch pedal 4336 drives the fourth rotating member 4337 to rotate relative to the base 2. The fourth rotating member 4337 drives the second locking and unlocking portion 431 through the second transmission member 432, so that the second locking and unlocking portion 431 releases the lock on the movable rod 41 and the fixed rod 42; Figure 42As shown, when the switch pedal 4336 is in the folded state, the switch pedal 4336 rotates inward relative to the fourth rotating member 4337 and is hidden under the base 2, thereby preventing the switch pedal 4336 from being stepped on, so that the second locking and unlocking portion 431 keeps the movable rod 41 and the fixed rod 42 locked and cannot be raised or lowered. In addition, during transportation, the switch pedal 4336 can be in the folded state, thereby hiding the switch pedal 4336 under the base 2, reducing the packaging space occupied, making the packaged volume smaller, and the appearance beautiful.

[0149] More preferably, a spring positioning pin 4339 is provided on the rotating seat, and at least one pin hole 43361 that cooperates with the spring positioning pin 4339 is provided on the switch pedal 4336. When the switch pedal 4336 is in the open state, the spring positioning pin 4339 can be embedded in the pin hole 43361 to position the switch pedal 4336, thereby preventing the switch pedal 4336 from loosening during normal use.

[0150] On the other hand, by installing the second switch assembly 433 on the base 2, the switch pedal 4336 can be controlled by the foot without using the hands, so that both hands can be freed to adjust the height of the seat frame 6, which is convenient for operation when adjusting the height of the seat frame 6.

[0151] See Figure 32 and Figure 33 Similar to Example 1, in this embodiment, the connecting portion 51 also includes a first connecting member 511, a second connecting member 512, and a U-shaped tube 513. The first connecting member 511 is connected to the upper end of one movable rod 41, and the second connecting member 512 is connected to the upper end of the other movable rod 41. The ends of the U-shaped tube 513 face upward and are respectively connected to the first connecting member 511 and the second connecting member 512. The difference is that in this embodiment, two U-shaped tubes 513 are provided, and the two U-shaped tubes 513 are arranged opposite each other. The connecting portion 51 also includes a bearing seat 54, which is connected to the two U-shaped tubes 513, and the driving mechanism 53 is disposed on the bearing seat 54.

[0152] Specifically, the two U-shaped tubes 513 are arranged on opposite sides of the movable rod 41 along the second direction, thereby forming a symmetrical support for the bearing seat 54, thereby better supporting the driving mechanism 53, and further better supporting the mounting seat 52 and the seat frame 6.

[0153] More preferably, the U-shaped tube 513 includes a horizontal tube 5131 and two vertical tubes 5132, the two ends of the horizontal tube 5131 are respectively connected to one end of different vertical tubes 5132, the other ends of the two vertical tubes 5132 extend upward and are respectively connected to the first connecting member 511 and the second connecting member 512, the supporting seat 54 is connected to the two horizontal tubes 5131, specifically, it also includes two fixing blocks 55, each fixing block 55 is respectively installed on a horizontal tube 5131, during installation, bolts can be used from bottom to top to pass through the fixing block 55 and the horizontal tube 5131 in sequence and screwed to the supporting seat 54, so that the supporting seat 54 can be more firmly installed to the two U-shaped tubes 513.

[0154] See Figure 32 In this embodiment, preferably, a buffer mechanism 200 is further included. The buffer mechanism 200 is connected between the base 2 and the connecting device 5. When adjusting the lowering height of the seat frame 6, the buffer mechanism 200 can provide a buffering effect to absorb the impact force during the descent, avoid descending too quickly, and avoid a large impact when reaching a low position; and when the seat frame 6 is accidentally released during the adjustment process, causing a mistake, or when the second locking and unlocking mechanism 43 is unlocked without following the instructions or by mistake, the seat frame 6 is not held, the buffer mechanism 200 can prevent the seat frame 6 from falling rapidly, thereby avoiding frightening and injuring the child.

[0155] More preferably, the buffer mechanism 200 includes two buffer springs 201, one end of each of the buffer springs 201 being connected to the connecting device 5, and the other end of each of the buffer springs 201 being connected to the base 2. Of course, the number of buffer springs 201 can also be one, three, or four, and this embodiment does not limit the number of buffer springs 201. In this manner, the buffer springs 201 can absorb impact force when adjusting the height of the seat frame 6 when it is lowered, and can also provide an auxiliary force when adjusting the height of the seat frame 6 when it is raised, thereby saving effort and making adjustment of the seat frame 6 safer and easier. Furthermore, due to the auxiliary force of the buffer springs 201, the clearance between the movable rod 41 and the fixed rod 42 can be reduced. The auxiliary force of the buffer springs 201 can offset, or at least partially offset, the friction force of the movable rod 41 when it is raised relative to the fixed rod 42 (the friction force of the movable rod 41 when it is lowered relative to the fixed rod 42 can be offset by gravity), thereby making the swing drive of the drive mechanism 53 smoother and more stable, with less energy loss, and making the seat frame 6 more stable.

[0156] It should be noted that the buffer mechanism 200 can also adopt other methods to provide a buffering effect when adjusting the lowering height of the seat frame 6, such as adopting other structures such as a damper, and the specific structure of the buffer mechanism 200 is not limited here.

[0157] 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 care device, characterized in that: include: Support legs, base, housing, at least two lifting rod assemblies, connecting device, seat frame, wherein, The support legs are connected to the base, and the support legs are foldable or retractable or detachable from the base; At least two of the lifting rod assemblies support the seat frame via the connecting device, the lifting rod assemblies including a movable rod and a fixed rod that are relatively slidably arranged and can be relatively locked or unlocked, the fixed rods of at least two of the lifting rod assemblies are fixedly connected to the base, and the movable rods of at least two of the lifting rod assemblies are fixedly connected to the connecting device, the connecting device is connected to the seat frame, and the seat frame is foldable or retractable or detachable from the connecting device; The outer shell includes a movable shell and a fixed shell that are nested with each other. The movable shell and the fixed shell form an accommodating cavity. The movable shell and the connecting device are relatively fixedly arranged. The fixed shell and the base are relatively fixedly arranged. At least two of the lifting rod assemblies and at least part of the connecting device are located in the accommodating cavity.

2. The infant care device according to claim 1, characterized in that: There are two lifting rod assemblies, and the arrangement direction of the two lifting rod assemblies is set at an angle to the length direction of the seat frame, and the arrangement direction of the two lifting rod assemblies is also set at an angle to the width direction of the seat frame.

3. The infant care device according to claim 1, characterized in that: The base is located in the accommodating cavity.

4. The infant care device according to claim 2, characterized in that: The base is provided with a first slot, and the peripheral side of the fixed shell is provided with a first through hole corresponding to the position of the first slot. After the supporting leg passes through the first through hole, it can be detachably inserted into the first slot to form a fixed connection.

5. The infant care device according to claim 1, characterized in that: The base includes a first base body, a second base body and a fixed connecting member, and the first base body and the second base body are fixedly connected through the fixed connecting member.

6. The infant care device according to claim 5, characterized in that: The fixed connection piece is U-shaped, the first base body is provided with an arc groove engaged with the fixed connection piece, and the second base body is provided with two second slots plugged with the fixed connection piece.

7. The infant care device according to claim 5, characterized in that: The first base and the second base are respectively provided with a third slot for inserting the fixing rod.

8. The infant care device according to any one of claims 1 to 7, characterized in that: It also includes a reinforcing mechanism located in the accommodating cavity, the reinforcing mechanism is connected to the connecting device, the reinforcing mechanism can be raised and lowered along with the connecting device, and the reinforcing mechanism can be used to support the inner side wall of the movable shell or the inner side wall of the fixed shell.

9. The infant care device according to claim 8, characterized in that: The reinforcing mechanism includes a reinforcing sleeve connected to the connecting device, and the circumferential side wall of the reinforcing sleeve can be used to slide against the inner side wall of the movable shell or the circumferential side wall of the reinforcing sleeve can be used to slide against the inner wall of the fixed shell.

10. The infant care device according to claim 9, characterized in that: The reinforcement sleeve is provided with a second through hole for the fixing rod and / or the movable rod to pass through.

11. The infant care device according to claim 9, characterized in that: The reinforcement sleeve is slidably arranged on the connecting device according to a preset stroke, and a second reset member is provided between the reinforcement sleeve and the connecting device. When the reinforcement sleeve descends to a low position along with the connecting device so that the reinforcement sleeve abuts against the base, the base can push the reinforcement sleeve to compress the second reset member.

12. The infant care device according to any one of claims 1 to 7, characterized in that: The connecting device includes a connecting part, a mounting seat and a driving mechanism. The connecting part is fixedly connected to at least two of the movable rods. The driving mechanism is arranged on the connecting part. The connecting part and the driving mechanism are both located in the movable shell. The output end of the driving mechanism passes through the movable shell and is connected to the mounting seat. The seat frame is connected to the mounting seat.

13. The infant care device according to claim 12, characterized in that: The seat frame is detachably connected to the mounting seat.

14. The infant care device according to claim 12, wherein: It also includes a first locking and unlocking mechanism, which is used to lock or unlock the mounting seat and the connecting part. When the first locking and unlocking mechanism locks the mounting seat and the connecting part, it prevents the driving mechanism from driving the seat frame to move.

15. The infant care device according to claim 14, characterized in that: The first locking and unlocking mechanism includes a first rotating member, a first locking block, and a first resetting member, the first rotating member being pivotally connected to the mounting seat, and also including an insert block and a fourth slot that are plugged in and matched with each other, one of the insert block and the fourth slot being provided on the first rotating member, the other of the insert block and the fourth slot being provided on the connecting portion, the first locking block being movably arranged on the first rotating member, the first resetting member being arranged between the first rotating member and the first locking block, and also including a first locking tongue and a first locking groove that are plugged in and matched with each other, the first locking block being provided with one of the first locking tongue and the first locking groove being provided on the connecting portion, and the other of the first locking tongue and the first locking groove being provided, when the first locking tongue is plugged in and matched with the first locking groove, the insert block is restricted in the fourth slot, thereby preventing the driving mechanism from driving the seat frame to move.

16. The infant care device according to claim 12, wherein: The driving mechanism includes a swinging portion, the swinging portion is pivotally connected to the connecting portion, and the mounting seat swings along with the swinging portion so that the seat frame swings relative to the connecting portion.

17. The infant care device according to claim 16, wherein: The driving mechanism also includes a first motor, the swinging part includes a swing arm, a rotating shaft, a limiting member, and a limiting slot, one end of the swing arm swings back and forth relative to the connecting part around a first pivot axis, the first motor is arranged on the connecting part and is used to drive the swing arm to swing, the rotating shaft is pivoted to the other end of the swing arm and swings with the swing arm, one end of the rotating shaft passes through the movable shell and is fixed to the mounting seat, the other end of the rotating shaft is fixed to the limiting member, the limiting slot is arranged on the connecting part, the limiting member cooperates with the limiting slot, and the limiting member can move relative to the limiting slot to limit the rotation angle of the rotating shaft relative to the swing arm.

18. The infant care device according to claim 17, wherein: The limiting groove is movably arranged relative to the connecting portion, and further comprises a swing mode adjustment mechanism for adjusting the position of the limiting groove.

19. The infant care device according to claim 18, wherein: The swing mode adjustment mechanism includes a connecting handle, a first switch assembly, a first transmission member, and a first locking and unlocking portion. The lower end of the connecting handle is connected to the limiting groove, the first switch assembly is connected to the upper end of the connecting handle, and the first switch assembly is located at the upper end of the movable shell. The first locking and unlocking portion is arranged between the limiting groove and the connecting portion, and the first transmission member is respectively connected to the first switch assembly and the first locking and unlocking portion.

20. The infant care device according to claim 19, wherein: The first locking and unlocking part includes a locking member and a plurality of second locking slots arranged on the connecting part. The locking member is connected to the first transmission member. The locking member is movably connected to the limiting slot or the connecting handle. The locking member can be locked with different second locking slots to adjust the limiting slot to different positions.

21. The infant care device according to claim 20, wherein: The first locking and unlocking portion further includes a third resetting member, and the third resetting member is arranged between the locking member and the limiting groove or between the locking member and the connecting handle.

22. The infant care device according to claim 19, wherein: The first switch assembly is movably connected to the upper end of the connecting handle, and the first switch assembly is also movably connected to the connecting portion.

23. The infant care device according to claim 22, wherein: The connecting part includes a switch box, the first switch assembly includes a switch connector, an adapter, and a first switch, the adapter is hinged to the upper end of the connecting handle, the adapter is also slidably connected to the switch connector, the switch connector is slidably connected to the switch box, the first switch is hinged to the switch connector, the first switch is connected to the first transmission member, and the upper end of the movable shell is provided with an avoidance groove for exposing the first switch.

24. The infant care device according to claim 12, wherein: The connecting part includes a first connecting member, a second connecting member, and a U-shaped tube. The first connecting member is connected to the upper end of one movable rod, the second connecting member is connected to the upper end of another movable rod, and the two ends of the U-shaped tube face upward and are respectively connected to the first connecting member and the second connecting member.

25. The infant care device according to any one of claims 1 to 7, characterized in that: The lifting rod assembly also includes a second locking and unlocking mechanism, which includes a second locking and unlocking part, a second transmission member, and a second switch assembly. The second locking and unlocking part is arranged between the movable rod and the fixed rod, one end of the second transmission member is connected to the second locking and unlocking part, and the other end of the second transmission member is connected to the second switch assembly. The second switch assembly is arranged on the connecting device.

26. The infant care device according to claim 25, characterized in that The second switch assembly includes a protective handle, a second switch, and a fifth reset member. The connecting device is provided with a receiving groove for accommodating the rotation and retraction of the protective handle. The protective handle and the second switch are coaxially rotatably arranged in the receiving groove. The fifth reset member is arranged between the protective handle and the second switch. The protective handle has an open state and a retracted state. When the protective handle is in the open state, the protective handle drives the second switch to rotate outward and be exposed. At this time, the second switch can be operated and the second locking and unlocking part is driven by the second transmission member, so that the second locking and unlocking part releases the lock of the movable rod and the fixed rod; when the protective handle is in the retracted state, the protective handle drives the second switch to rotate inward and hide, thereby preventing the operation of the second switch, so that the second locking and unlocking part keeps the movable rod and the fixed rod locked and cannot be raised or lowered.

27. The infant care device according to claim 26, wherein: The second switch assembly also includes a first slider and a second slider. The connecting device is provided with a first sliding groove that slides with the first slider and a second sliding groove that slides with the second slider. The second switch can be used to drive the first slider to slide, and the first slider can be used to drive the second slider to slide. The second slider is connected to the other end of the second transmission member.

28. The infant care device according to claim 9, wherein: The movable rod is slidably sleeved on the outside of the fixed rod, and the reinforcement sleeve is slidably mounted on the movable rod. A limiting member for supporting the reinforcement sleeve is provided on the movable rod, and a second reset member is provided between the reinforcement sleeve and the connecting device. When the reinforcement sleeve descends to a low position along with the connecting device so that the reinforcement sleeve abuts against the base, the base can push the reinforcement sleeve to slide upward so that the reinforcement sleeve disengages from the limiting member and compresses the second reset member.

29. The infant care device according to claim 28, wherein: There are a plurality of second return members, the reinforcement sleeve is provided with a plurality of first spring slots, the connecting device is provided with a plurality of second spring slots, one end of the second return member is inserted into the first spring slot, and the other end of the second return member is inserted into the second spring slot.

30. The infant care device according to claim 13, wherein: It also includes a third locking and unlocking mechanism, which is used to lock or unlock the seat frame and the mounting seat.

31. The infant care device according to claim 30, characterized in that The mounting seat is provided with a first sliding plug-in portion, and the seat frame is provided with a second sliding plug-in portion, and the first sliding plug-in portion and the second sliding plug-in portion can be plugged and matched, and the third locking and unlocking mechanism includes a second locking block, a third locking block, a linkage block, and a third switch, and the second locking block, the third locking block, and the linkage block are all movably arranged on the mounting seat, and the second locking block, the third locking block, and the linkage block are linked and matched, and the third switch is arranged on the seat frame, and the seat frame is also provided with a second lock hole that matches the second lock block and a third lock hole that matches the third lock block, and the third switch can drive the second lock block to disengage from the second lock hole, and at the same time, the second lock block drives the third lock block to disengage from the third lock hole through the linkage block, thereby completing the unlocking between the seat frame and the mounting seat.

32. The infant care device according to claim 31, characterized in that The linkage block is slidably arranged on the mounting seat along the first direction, and the second locking block and the third locking block are both slidably arranged on the mounting seat along the second direction, the first direction and the second direction are perpendicular to each other, the linkage block is provided with a first linkage oblique groove and a second linkage oblique groove, the second locking block is provided with a first protrusion that can slide in the first linkage oblique groove, and the third locking block is provided with a second protrusion that can slide in the second linkage oblique groove, and also includes a sixth reset member, the sixth reset member is arranged between the linkage block and the mounting seat, and the sixth reset member can elastically drive the linkage block to slide in the first direction so that the linkage block drives the second locking block and the third locking block to extend from both sides of the mounting seat respectively.

33. The infant care device according to claim 31, characterized in that The seat frame includes a bottom connecting plate, the second sliding plug-in part, the third switch, the second lock hole and the third lock hole are all arranged on the bottom connecting plate, and the mounting seat supports the bottom connecting plate when the first sliding plug-in part is plugged with the second sliding plug-in part.

34. The infant care device according to claim 33, characterized in that The third switch includes a pushing member, a third slider, and an eighth reset member, wherein the pushing member is slidably provided on the bottom connecting plate and can cooperate with the second locking block, the third slider is slidably provided on the pushing member, and the eighth reset member is arranged between the pushing member and the third slider, and the third slider has an extended state and a retracted state; when the third slider is in the extended state, the third slider can be pressed against the outer wall of the bottom connecting plate to prevent the pushing member from sliding, thereby preventing the second locking block and the third locking block from being unlocked; when the third slider is in the retracted state, the third slider is disengaged from the outer wall of the bottom connecting plate, and the pushing member can be pressed at this time, and the pushing member can drive the second locking block and the third locking block to unlock.

35. The infant care device according to claim 31, wherein: Two first sliding plug-in parts are relatively arranged along the width direction of the seat frame, and two second sliding plug-in parts are relatively arranged along the width direction of the seat frame. The first sliding plug-in part is in the shape of an inverted hook extending along the length direction of the seat frame, and the second sliding plug-in part is in the shape of a hook extending along the length direction of the seat frame. The second sliding plug-in part can be slidably connected to the first sliding plug-in part along the length direction of the seat frame.

36. The infant care device according to claim 1, wherein: It also includes a buffer mechanism connected between the base and the connecting device.

37. The infant care device according to claim 36, characterized in that The buffer mechanism includes a buffer spring, one end of the buffer spring is connected to the connecting device, and the other end of the buffer spring is connected to the base.

38. The infant care device according to claim 24, wherein: There are two U-shaped tubes, which are arranged opposite to each other. The connecting portion further includes a bearing seat, which is connected to the two U-shaped tubes. The driving mechanism is arranged on the bearing seat.

39. The infant care device according to claim 38, characterized in that The U-shaped tube includes a horizontal tube and two vertical tubes. The two ends of the horizontal tube are respectively connected to one end of different vertical tubes. The other ends of the two vertical tubes extend upward and are respectively connected to the first connecting member and the second connecting member. The bearing seat is connected to the two horizontal tubes.

40. The infant care device according to claim 16, wherein: The driving mechanism also includes a first motor, and the swing part includes a swing arm, a rotating shaft, an adapter, a limiting piece, and a limiting slot. One end of the swing arm swings back and forth relative to the connecting part around the first pivot axis. The first motor is arranged on the connecting part and is used to drive the swing arm to swing. The rotating shaft is pivotally connected to the other end of the swing arm and swings with the swing arm. One end of the rotating shaft is fixed to one end of the adapter, and the other end of the adapter passes through the movable shell and is fixed to the mounting seat. The connection between the adapter and the mounting seat is close to the middle of the swing arm, and the other end of the rotating shaft is fixed to the limiting piece. The limiting slot is arranged on the connecting part, and the limiting piece cooperates with the limiting slot. The limiting piece can move relative to the limiting slot to limit the angle of rotation of the rotating shaft relative to the swing arm.

41. The infant care device according to claim 40, wherein: The adapter device includes a horizontal part and a vertical part, one end of the horizontal part is connected to one end of the rotating shaft, the other end of the horizontal part is close to the middle of the swing arm and connected to one end of the vertical part, and the other end of the vertical part passes through the movable shell and is connected to the mounting seat.

42. The infant care device according to claim 40, wherein: The driving mechanism also includes a first transmission assembly, which includes a first driven wheel, a first worm, a first worm wheel, a second rotating member, and a first swinging member. A first driving wheel is fixedly connected to the output shaft of the first motor, the first worm wheel is pivotally connected to the connecting portion, the first driven wheel is fixedly connected to the first worm wheel, the first driving wheel and the first driven wheel are in transmission connection, the first worm wheel is pivotally connected to the connecting portion and meshes with the first worm wheel, one end of the second rotating member is fixedly connected to the axle of the first worm wheel, the other end of the second rotating member is pivotally connected to one end of the first swinging member, and the other end of the first swinging member is pivotally connected to the swing arm.

43. The infant care device according to claim 42, characterized in that The limiting groove is movably arranged relative to the connecting portion, and further comprises a swing mode adjustment mechanism for adjusting the position of the limiting groove.

44. The infant care device according to claim 43, characterized in that The swing mode adjustment mechanism includes a second motor and a second transmission assembly, the second transmission assembly includes a second driven wheel, a second worm, a second worm wheel, a third rotating member, and a second swinging member, a second driving wheel is fixedly connected to the output shaft of the second motor, the second worm wheel is pivotally connected to the connecting portion, the second driven wheel is fixedly connected to the second worm wheel, the second driving wheel and the second driven wheel are transmission-connected, the second worm wheel is pivotally connected to the connecting portion and meshes with the second worm wheel, one end of the third rotating member is fixedly connected to the axle of the second worm wheel, the other end of the third rotating member is pivotally connected to one end of the second swinging member, the other end of the second swinging member is pivotally connected to the limiting slot, and the limiting slot is pivotally connected to the connecting portion.

45. The infant care device according to claim 44, characterized in that The swing mode adjustment mechanism is located on a first side of the swing arm, and the first motor and the first transmission assembly are located on a second side of the swing arm.

46. ​​The infant care device according to claim 1, wherein: The movable rod is slidably sleeved on the outside of the fixed rod, and the lifting rod assembly also includes a second locking and unlocking mechanism, which includes a second locking and unlocking part, a second transmission member, and a second switch assembly. The second locking and unlocking part is arranged between the movable rod and the fixed rod, one end of the second transmission member is connected to the second locking and unlocking part, and the other end of the second transmission member is connected to the second switch assembly. The second switch assembly is arranged on the base or the supporting foot or the fixed shell.

47. The infant care device according to claim 46, characterized in that The second switch assembly includes a switch pedal, a fourth rotating member, and a seventh reset member, the fourth rotating member being pivotally connected to the base in a horizontal direction, the other end of the second transmission member being connected to the fourth rotating member, the seventh reset member being arranged between the base and the fourth rotating member, the switch pedal being pivotally connected to the fourth rotating member in a vertical direction, and the switch pedal having an open state and a retracted state; when the switch pedal is in the open state, the switch pedal is rotated outward relative to the fourth rotating member and exposed, at this time, the switch pedal can be stepped on so that the switch pedal drives the fourth rotating member to rotate relative to the base, and the fourth rotating member drives the second locking and unlocking portion through the second transmission member, so that the second locking and unlocking portion releases the lock of the movable rod and the fixed rod; when the switch pedal is in the retracted state, the switch pedal is rotated inward relative to the fourth rotating member and hidden under the base.

48. The infant care device according to claim 47, characterized in that The rotating seat is provided with a spring positioning pin, and the switch pedal is provided with at least one pin hole matched with the spring positioning pin. When the switch pedal is in the open state, the spring positioning pin can be embedded in the pin hole to position the switch pedal.

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