Height-adjustable child carrier

Abstract

The invention discloses a height-adjustable carrier for children. The child carrier comprises a stand column assembly; the fixed support is arranged on the stand column assembly; the first movable support can move relative to the stand column assembly; the second movable support can move relative to the stand column assembly; the connecting piece is lapped on the fixed support and provided with a first connecting part and a second connecting part which are located on the two sides of the fixed support, the first connecting part is connected to the first movable support, and the second connecting part is connected to the second movable support, so that the second movable support moves reversely when the first movable support moves. The child carrier is convenient in height adjustment operation and good in safety.

Description

Technical Field

[0001] This invention relates to a height-adjustable child vehicle, such as a crib, bassinet, playpen, or bed rail for accommodating a child. Background Technology

[0002] One type of child-supporting equipment, such as cribs, bassinets, playpens, and bed rails, needs to be height-adjustable. When children are young, the height of the child-supporting components (such as the bed frame) is relatively high, close to the top of the equipment, making it easy to put the child in or take them out, while also keeping the child securely inside. When children are older, a greater height restriction is needed, and the height of the child-supporting components (such as the bed frame) is relatively low, closer to the ground and further from the top of the equipment, to prevent older children from falling out. There is a need for child-supporting equipment that is simple in structure, safe, and easily height-adjustable.

[0003] The information disclosed in the background section is only intended to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] This invention relates to a height-adjustable child vehicle, which is convenient to adjust and has good safety features.

[0005] The present invention adopts the following technical solution: An adjustable-height child vehicle, comprising: Column assembly; A fixed bracket is mounted on the column assembly; The first movable support is movable relative to the column assembly; The second movable support is movable relative to the column assembly; A connector rests on the fixed support and has a first connecting portion and a second connecting portion located on both sides of the fixed support. The first connecting portion is connected to the first movable support, and the second connecting portion is connected to the second movable support, such that the second movable support moves in the opposite direction when the first movable support moves.

[0006] In some preferred embodiments, the connector comprises a flexible fabric or rope.

[0007] In some preferred embodiments, the first connecting portion and the second connecting portion are respectively the two ends of the connector, and the middle portion of the connector passes over the fixed bracket, such that the first connecting portion and the second connecting portion are located on the outer and inner sides of the fixed bracket, respectively.

[0008] In some preferred embodiments, a first section of the connector is tensioned between the second movable support and the fixed support, and a second section of the connector is tensioned between the fixed support and the first movable support; the connector includes at least a portion of the child carrier's cover; or, the connector includes a strip-shaped connecting strap.

[0009] In some preferred embodiments, the fixed support and the second movable support enclose a space for accommodating a child, and the child carrier has multiple usage states, with the accommodating space having different depths in the multiple usage states.

[0010] In some preferred embodiments, the second movable support is provided with a support plate that defines the bottom of the receiving space.

[0011] In some preferred embodiments, the fixed bracket is fixed to the top of the column assembly.

[0012] In some preferred embodiments, the first movable support and the second movable support are located below the fixed support.

[0013] In some more preferred embodiments, the first movable support is slidably connected to the column assembly, and the second movable support is slidably connected to the column assembly. The child carrier includes a first use state and a second use state. The height of the first movable support in the first use state is higher than its height in the second use state, and the height of the second movable support in the first use state is lower than its height in the second use state. A locking member is provided on the first movable support or the second movable support. When the child carrier is in the first use state or the second use state, the locking member and the column assembly are locked together.

[0014] In some preferred embodiments, the first movable support includes a sliding sleeve that is slidably fitted onto the column assembly; the second movable support includes a slider, the column assembly has a vertically extending groove into which the slider is inserted; the sliding sleeve has an clearance groove for the slider to pass through, the clearance groove extending from the top to the bottom of the sliding sleeve.

[0015] In some preferred embodiments, the column assembly includes a plurality of upright columns, and the fixed support is disposed on the plurality of columns; the first movable support includes a first frame joined end to end, the first frame being horizontally disposed; the second movable support includes a second frame joined end to end, the second frame being horizontally disposed; the fixed support includes a third frame joined end to end, the third frame being horizontally disposed; the third frame is located above the first frame, the third frame is located above the second frame, and together they enclose a space for accommodating a child.

[0016] In some preferred embodiments, the child carrier is a child bed, the fixed support is transverse to the column assembly, the first movable support is transverse to the column assembly, the second movable support is transverse to the column assembly, and a bed board is provided on the second movable support.

[0017] In some preferred embodiments, the child vehicle includes a locking mechanism, which includes a locking seat disposed on the first movable support or the second movable support and a locking member movably disposed on the locking seat. When the locking member is engaged with the column assembly, the locking mechanism is in a locked state, and when the locking member is disengaged from the column assembly, the locking mechanism is in an unlocked state.

[0018] In some preferred embodiments, the locking mechanism further includes an elastic element and an unlocking element, the elastic element being disposed between the locking element and the locking seat to give the locking element a tendency to move toward the column assembly, and the unlocking element being connected to the locking element to drive the locking element away from the column assembly.

[0019] In some preferred embodiments, the locking member is pivotally connected to the locking seat, and the elastic member includes a torsion spring disposed on the pivot.

[0020] In some preferred embodiments, the locking seat is disposed on the second movable bracket, and the second movable bracket is provided with a support plate; the locking mechanism further includes a handle, at least a portion of which is located above the second movable bracket, the lower end of which is connected to the unlocking member, and the support plate is provided with a through hole for the handle or the unlocking member to pass through.

[0021] In some preferred embodiments, the support plate is provided with a handle, and both the handle and the pull handle have an annular portion to allow a person to pull the handle and the pull handle simultaneously.

[0022] In some preferred embodiments, the child carrier has multiple usage states, and the second movable support has a different height in the multiple usage states; The locking element has a protruding locking hook, and when the child carrier is in one of its use states, the locking hook and the locking surface on the support leg of the column assembly engage with each other to lock the first movable bracket or the second movable bracket to the column assembly.

[0023] Optionally or further, the column assembly has a protruding limiting block, and when the child vehicle is in one of its use states, the locking member engages with the limiting block to lock the first movable bracket or the second movable bracket to the column assembly.

[0024] Optionally or further, the locking seat is disposed on the second movable bracket, and the first movable bracket has a sliding sleeve that slides up and down on the column assembly. When the child carrier is in one of its use states, the locking element is engaged with the sliding sleeve to lock the second movable bracket and the column assembly.

[0025] In some preferred embodiments, the column assembly includes a vertically extending column, a support leg disposed at the bottom end of the column, and a limiting block disposed on the column, the limiting block being located above the support leg; a sliding sleeve of the first movable bracket is slidably fitted onto the column, the sliding sleeve being located above the limiting block; and a locking seat is disposed on the second movable bracket. The child vehicle has a first use state, a second use state, and a third use state. The locking member has an outwardly extending locking hook, and the support leg is provided with a locking groove. The locking groove has a downward-facing locking surface. When the child carrier is in the first use state, the locking hook is inserted into the locking groove and the locking hook is locked on the locking surface, so that the locking mechanism is in a locked state, and the second moving bracket is stable in the first position. When the child carrier is in the second use state, the locking member is located above the limiting block, and the lower surface of the locking member abuts against the limiting block to keep the locking mechanism in a locked state, and the second moving bracket is stable in the second position; When the child carrier is in the third use state, the locking member is located above the sliding sleeve, and the lower surface of the locking member abuts against the sliding sleeve to lock the locking mechanism, and the second moving bracket is stabilized in the third position. The second position is higher than the first position but lower than the third position.

[0026] In some preferred embodiments, the column is provided with a groove extending in the vertical direction, the locking seat is connected to the slider, and the slider is slidably inserted into the groove. The support leg has a first blocking surface facing upwards. During the process of the child vehicle being converted to the first use state, the bottom of the slider has a position that abuts against the first blocking surface to remind the unlocking member to be released. The column is provided with a stop groove, which communicates with the slide groove. The stop groove is located above the support leg. The slider is provided with a damping block, which can extend out of or retract into the slider. A second elastic element is provided between the damping block and the slider. During the process of the child carrier switching to the second use state, the damping block is inserted into the stop groove to remind the unlocking element to be released. The damping block has an inclined or rounded upper surface and a lower surface, and the stop groove has an inclined or rounded upper groove wall and a lower groove wall to allow the damping block to disengage from the stop groove during the sliding of the slider. During the process of the child carrier switching from the second use state to the first use state or the third use state, the damping block disengages from the stop groove. The column assembly also includes an upper stop block disposed on the column. The upper stop block is located above the stop groove or the limiting block. The upper stop block has a second blocking surface facing downward. During the process of the child vehicle being converted to the third use state, the top of the slider has a position abutting against the second blocking surface to remind the unlocking member to be released.

[0027] In some preferred embodiments, the locking seat is connected to the slider, which is slidably inserted into the groove of the column assembly. The slider has a reminder element or is provided on the slider. During the sliding of the slider, the reminder element has a position that can abut against or engage with the column assembly to remind the user to release the unlocking element.

[0028] In some preferred embodiments, the column assembly includes a blocking surface located above or below the slider, and the reminder includes a top or bottom of the slider that can abut against the blocking surface; and / or, the column assembly includes a stop groove, and the reminder includes a damping block movably disposed on the slider and a second elastic member disposed between the damping block and the slider, the damping block having a position inserted into the stop groove and a position disengaged from the stop groove.

[0029] In some preferred embodiments, the child vehicle includes a plurality of the column assemblies and at least two of the locking mechanisms, wherein the first movable support or the second movable support is mutually locked to each other by at least two of the locking mechanisms and at least two of the plurality of column assemblies.

[0030] In some preferred embodiments, the child carrier further includes an elastic band having a first portion connected to a first movable support or a second movable support, and a second portion connected to the upright assembly or the fixed support. The elastic band is elastic and capable of switching between a contracted state and an extended state.

[0031] In some preferred embodiments, the height of the second movable support when the elastic band is in an extended state is less than the height of the second movable support when the elastic band is in a contracted state.

[0032] In some preferred embodiments, the elastic band is connected between the first movable support and the column assembly.

[0033] In some preferred embodiments, the child carrier has multiple usage states, the height of the first moving bracket is different in each usage state, the elastic band is in a contracted state in one usage state, and the elastic band is in an extended state in other usage states.

[0034] In some preferred embodiments, the plurality of usage states include a first usage state and a second usage state, wherein the height of the first movable support in the first usage state is greater than its height in the second usage state, and in the first usage state, the elastic band of the child carrier is in an extended state and has a tendency to move the first movable support downward; and in the second usage state, the elastic band of the child carrier is in an extended state and has a tendency to continue to move the first movable support downward.

[0035] In some further preferred embodiments, the plurality of use states include a first use state and a third use state, wherein the height of the first movable support in the first use state is greater than its height in the third use state, and in the first use state, the elastic band of the child carrier is in an extended state and has a tendency to move the first movable support downward; in the third use state, the elastic band of the child carrier is in a contracted state.

[0036] In some preferred embodiments, the upper end of the elastic band is connected to the first movable support, and the lower end of the elastic band is connected to the bottom of the column assembly.

[0037] In some preferred embodiments, the first movable support includes a sliding sleeve, the column assembly includes a vertically extending upright and a support foot disposed at the lower end of the upright, the sliding sleeve is slidably fitted onto the upright of the column assembly, the upper end of the elastic band is connected to the sliding sleeve, and the lower end of the elastic band is connected to the support foot.

[0038] In some preferred embodiments, the post is defined by protrusions or ridges that define the threading path, and the elastic band is laid along the threading path.

[0039] In some preferred embodiments, the child vehicle further includes an accessory rod, and the column assembly or the top bracket is provided with a connector. The accessory rod has an installed state connected to the connector and a disassembled state detached from the connector.

[0040] In some preferred embodiments, the accessory rod includes a plug and a locking plate, the locking plate being movably connected to the plug and having a locking block; the connector includes a plug hole with a locking groove on its wall; when the accessory rod is in the installed state, the plug is inserted into the plug hole, the locking block is disposed in the locking groove, and the locking groove has a locking surface that can contact the locking block and prevent the plug from disengaging from the plug hole; when the accessory rod is in the disassembled state, the locking block disengages from the locking groove, and the plug disengages from the plug hole.

[0041] In some preferred embodiments, the locking plate is disposed inside the plug, the outer wall of the plug is provided with a first through hole through which the locking block can pass, and the accessory rod further includes a third elastic member abutting against or connected to the locking plate, the third elastic member having a tendency to extend the locking block from the first through hole to the outside of the plug.

[0042] In some preferred embodiments, when the accessory rod is in the installed and disassembled states, the locking block is located outside the plug; when the accessory rod is switched between the installed and disassembled states, the locking block retracts into the plug, and the third elastic element is in a deformed state.

[0043] In some preferred embodiments, the locking plate is rotatably connected to the plug by a pin, and the locking plate also has an unlocking block that is higher than the locking block. The outer shell of the plug is also provided with a second through hole through which the unlocking block can pass. When the accessory rod is installed, the unlocking block extends from the second through hole to the outside of the plug, and the unlocking block is located above the insertion hole.

[0044] In some preferred embodiments, the third elastic element includes a compression spring disposed between the inner surfaces of the locking tab and the plug.

[0045] In some preferred embodiments, the accessory rod further includes a mounting base and an unlocking button, the upper end of the plug being connected to the mounting base, the unlocking button being movably disposed on the mounting base, and the unlocking button having a push block that pushes the locking block into the plug.

[0046] In some preferred embodiments, one of the accessory rod and the connector is provided with a male power connector and the other with a female power connector. When the accessory rod is installed, the male power connector and the female power connector are connected to each other to form a power supply circuit.

[0047] In some preferred embodiments, the connector includes a plug hole, the female power connector is disposed at the bottom of the plug hole, and the male power connector is disposed at the bottom of the accessory rod.

[0048] In some preferred embodiments, the child carrier includes an accessory rod, the accessory rod including an upper rod, the upper rod including a longitudinal section and a transverse section, the longitudinal section extending upward from the fixed support, and the transverse section extending laterally from the upper end of the longitudinal section.

[0049] In some preferred embodiments, the accessory rod includes a fixed base, and the upper rod is rotatable relative to the fixed base.

[0050] In some preferred embodiments, the fixed base is provided with a fixed shaft, the upper rod includes an upper housing, an upper fixing block and a fourth elastic element, the upper housing is rotatably sleeved on the fixed shaft, the upper fixing block is movably disposed in the upper housing along the fixed shaft, and the fourth elastic element is disposed between the upper fixing block and the upper housing to press the upper fixing block against the upper surface of the fixed base.

[0051] In some preferred embodiments, the upper fixing block has a plurality of downwardly extending upper teeth spaced apart along the circumferential direction of the fixing axis; the fixing seat has a lower fixing block having a plurality of upwardly extending lower teeth spaced apart along the circumferential direction of the fixing axis; the plurality of upper teeth and the plurality of lower teeth mesh with each other, and the tooth surfaces of the upper teeth and / or the lower teeth are inclined surfaces to allow the upper teeth to slide on the tooth surfaces of the lower teeth when the upper rod rotates relative to the fixing seat, and the upper rod is stationary relative to the fixing seat when the upper teeth enter the tooth grooves between adjacent lower teeth.

[0052] In some preferred embodiments, the lower fixing block has a groove, the lower teeth are formed on the bottom wall of the groove, and the upper teeth are inserted into the groove; the fixing shaft passes through the upper fixing block and the fixing shaft passes through the lower fixing block.

[0053] In some preferred embodiments, the upper end of the fixed shaft is provided with a limiting pin, the upper fixing block is restricted between the limiting pin and the fixing seat, and the fourth elastic element includes a compression spring sleeved on the fixed shaft, the upper end of the compression spring abutting against the upper housing, and the lower end of the compression spring abutting against the fixing seat.

[0054] In some preferred embodiments, the upper fixing block is provided with a guide portion extending in the vertical direction, the guide portion being slidably connected to the upper housing to allow the upper fixing block to move in the vertical direction and to rotate with the upper housing.

[0055] In some preferred embodiments, the accessory rod includes a transverse section suspended above the fixed bracket, the transverse section having a hook for attaching accessories or toys to a child vehicle.

[0056] In some preferred embodiments, the cover of the child carrier covers the fixed support or the column assembly, and the cover has an opening for the accessory rod to pass through. When the child carrier is in at least one use state, the opening is located on top of the top support or the top of the column assembly.

[0057] In some preferred embodiments, the child carrier includes a cloth cover that covers the fixed support, the outer edge of the cloth cover being connected to the first movable support, and the inner edge of the cloth cover being connected to the second movable support; a first section of the cloth cover is tensioned between the second movable support and the fixed support, and a second end of the cloth cover is tensioned between the fixed support and the first movable support.

[0058] A detachable child vehicle comprising: Column assembly; Multiple supports are arranged transversely to the column assembly, and each support is detachably connected to the column assembly; The child carrier has a detachable state, in which the plurality of brackets are separated from the column assembly, and the plurality of brackets are interconnected.

[0059] In a preferred embodiment, at least one of the brackets is provided with a first locking element, and the other brackets are provided with a second locking element. When the child carrier is in the disassembled state, the first locking element and the second locking element are engaged with each other.

[0060] In a more preferred embodiment, the first locking element is a hook or block that is elastically or movably configured, and the second locking element includes a locking hole or locking surface that cooperates with the hook or block.

[0061] In a preferred embodiment, each of the brackets includes a horizontally arranged frame, and when the child carrier is in the disassembled state, the frames of the plurality of brackets are stacked and connected to each other; the child carrier is a child bed, and a bed board is provided on the frame of one of the brackets, and the bed board and the frame define an accommodating space for carrying a child.

[0062] In a preferred embodiment, the plurality of supports include: A fixed support, having a fixed connector, the fixed connector being detachably connected to the column assembly; A movable support that can move relative to the column assembly; The fixed connector is provided with an elastic hook, and the movable bracket is provided with a locking hole. When the child vehicle is in the disassembled state, the hook is inserted into the locking hole; or, the movable bracket is movably provided with a locking block, and when the child vehicle is in the disassembled state, the locking block is locked onto the locking pin of the fixed connector.

[0063] In a more preferred embodiment, the movable support includes a first movable support and a second movable support, and the child carrier further includes a connector. The connector rests on the fixed support and has a first connecting portion and a second connecting portion located on both sides of the fixed support. The first connecting portion is connected to the first movable support, and the second connecting portion is connected to the second movable support, such that the second movable support moves in the opposite direction when the first movable support moves. When the child carrier is in the disassembled state, the fixed bracket, the first movable bracket, and the second movable bracket are stacked on top of each other, the hook on the fixed connector is inserted into the locking hole of the first movable bracket, and the locking block of the second movable bracket is locked on the locking pin of the fixed connector.

[0064] In a further preferred embodiment, the first movable support includes a horizontally arranged first frame and a sliding sleeve connected to the first frame. The sliding sleeve is detachably fitted onto the column assembly, and the sliding sleeve is provided with a locking hole. The second movable support includes a horizontally arranged second frame and a connecting seat disposed on the second frame. The connecting seat is detachably connected to the column assembly. A locking block is movably disposed on the connecting seat, and a locking block elastic element is disposed between the locking block and the connecting seat. The fixed support includes a horizontally arranged third frame, on which a plurality of fixed connectors are provided, the fixed connectors being detachably inserted into the upper end of the column assembly; The fixed connector includes a body, the lower end of the hook is connected to the fixed connector, there is a gap between the upper end of the hook and the body, the hook has a guide slope that can contact and cooperate with the inner surface of the sliding sleeve; a locking pin is provided on the inner side of the body. When the child carrier is in the disassembled state, the fixed connector is inserted into the sliding sleeve, the hook is inserted into the locking block, the locking block of the second moving bracket is locked on the locking pin of the fixed connector, the locking pin is higher than the hook, the second frame is located inside the first frame and the third frame, the second frame is higher than the first frame, and the first frame is located below the third frame.

[0065] In a more preferred embodiment, a fixed bracket removal button is movably provided on the fixed connector, and a fixed bracket button hole is provided on the column assembly to cooperate with the fixed bracket removal button. The fixed bracket removal button can be detachably inserted into the fixed bracket button hole, and the fixed bracket removal button is disengaged from the fixed bracket button hole when the child carrier is in the disassembled state.

[0066] In a more preferred embodiment, the column assembly includes a column, a button seat disposed on the column, a stop block movably disposed on the button seat, and a button for driving the stop block to move; the stop block has an extended position protruding outward relative to the column and a retracted position retracting towards the column, the stop block being positioned above the movable support or abutting against the upper surface of the movable support in the extended position to prevent the movable support from disengaging from the column assembly, and the retracted position of the stop block being configured to allow the movable support to move above the stop block to disengage from the column assembly.

[0067] In a further preferred embodiment, the stop block is movably disposed on the button base in a first direction, and the button is movably disposed on the button base in a second direction, wherein the first direction and the second direction are perpendicular to each other. The stop block and / or the button are provided with a contact slope, and the stop block and the button contact each other through the contact slope. The contact slope is configured such that when the button moves, it pushes the stop block to extend out of the button base in the first direction. The button base is provided with a stop block elastic member for resetting the stop block and a button elastic member for resetting the button.

[0068] The present invention adopts the above solution and has the following advantages: The height of the child carrier of the present invention is adjustable; moreover, the height adjustment is achieved by driving the second movable bracket with the first movable bracket, which is convenient and smooth; during the adjustment process, it can avoid the accumulation of connecting parts or fabric covers set in the first and second movable brackets inside, providing a safe and breathable internal environment and reducing the risk of suffocation caused by the accumulation of connecting parts or fabric inside. Attached Figure Description

[0069] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0070] Figure 1 This is a perspective view of a child vehicle in its first use state according to an embodiment of the present invention.

[0071] Figure 2 This is a perspective view of a child vehicle in a second use state according to an embodiment of the present invention.

[0072] Figure 3 This is a perspective view of a child vehicle in a third use state according to an embodiment of the present invention.

[0073] Figure 4 This is a perspective view of the frame of a child vehicle according to an embodiment of the present invention in its first use state.

[0074] Figure 5 This is an exploded view of a portion of the skeleton of a child vehicle according to an embodiment of the present invention.

[0075] Figure 6 This is a perspective view of a second movable support according to an embodiment of the present invention.

[0076] Figure 7 This is a perspective view of a locking mechanism according to a novel embodiment.

[0077] Figure 8 This is an exploded view of a locking mechanism according to an embodiment of the present invention.

[0078] Figure 9 This is a cross-sectional view of the frame of a child vehicle according to an embodiment of the present invention in a first use state, wherein the locking mechanism is in a locked state.

[0079] Figure 10 for Figure 9 A magnified view of a portion of point A in the middle.

[0080] Figure 11 This is a perspective view of the frame of a child vehicle according to an embodiment of the present invention in a first use state, wherein the locking mechanism is in an unlocked state.

[0081] Figure 12 This is a cross-sectional view of the frame of a child vehicle according to an embodiment of the present invention in a first use state, wherein the locking mechanism is in an unlocked state.

[0082] Figure 13 for Figure 12 A magnified view of a section at point B.

[0083] Figure 14 This is a perspective view of the frame of a child vehicle according to an embodiment of the present invention in a second use state, wherein the locking mechanism is in a locked state.

[0084] Figure 15 for Figure 14 A magnified view of a section at point C.

[0085] Figure 16This is a perspective view of the frame of a child vehicle according to an embodiment of the present invention in a second use state, wherein the locking mechanism is in an unlocked state.

[0086] Figure 17 for Figure 16 A magnified view of a section at point D.

[0087] Figure 18 This is a perspective view of the frame of a child vehicle according to an embodiment of the present invention in a third use state, wherein the locking mechanism is in a locked state.

[0088] Figure 19 for Figure 18 A magnified view of a section at point E in the middle.

[0089] Figure 20 This is a perspective view of the frame of a child vehicle according to an embodiment of the present invention in a third use state, wherein the locking mechanism is in an unlocked state.

[0090] Figure 21 for Figure 20 A magnified view of a section at point F.

[0091] Figure 22 This is a structural diagram of a column assembly according to an embodiment of the present invention.

[0092] Figure 23 This is a structural diagram of a slider according to an embodiment of the present invention.

[0093] Figures 24 to 26 This is a schematic diagram showing the three positions of the damping block and the stop groove during the sliding motion of the slider.

[0094] Figure 27 This is a perspective view of another child vehicle according to an embodiment of the present invention in its first use state.

[0095] Figure 28 This is a perspective view of another child vehicle according to an embodiment of the present invention in a second use state.

[0096] Figure 29 This is a schematic diagram of another column assembly according to an embodiment of the present invention, wherein the elastic band is in an extended state.

[0097] Figure 30 This is a schematic diagram of another column assembly according to an embodiment of the present invention, wherein the elastic band is in a contracted state.

[0098] Figure 31 This is a perspective view of a child vehicle with an accessory rod according to an embodiment of the present invention.

[0099] Figure 32 This is a perspective view of an accessory rod according to an embodiment of the present invention.

[0100] Figure 33 for Figure 32 A magnified view of a portion of point A in the middle.

[0101] Figure 34 This is a schematic diagram of the accessory rod in the installed state according to an embodiment of the present invention, wherein the locking block and the locking engagement are engaged.

[0102] Figure 35 This is a schematic diagram of the accessory rod in the installed state according to an embodiment of the present invention, wherein the locking block is disengaged.

[0103] Figure 36 This is a schematic diagram illustrating the interaction between the plug and the unlock button according to an embodiment of the present invention.

[0104] Figure 37 and Figure 38 This is a perspective view of a child vehicle with an accessory rod according to an embodiment of the present invention, wherein the accessory rod is at different angles.

[0105] Figure 39 Various angles of the accessory rod according to embodiments of the present invention are shown.

[0106] Figure 40 This is a partial exploded view of an accessory rod according to an embodiment of the present invention.

[0107] Figure 41 This is a cross-sectional view of an accessory rod according to an embodiment of the present invention.

[0108] Figure 42 This is a schematic diagram illustrating the cooperation between an upper fixing block and a lower fixing block according to an embodiment of the present invention.

[0109] Figure 43 This is a structural diagram of a child vehicle according to an embodiment of the present invention.

[0110] Figure 44 for Figure 43 A magnified view of a portion of point A in the middle.

[0111] Figure 45 This is an exploded view of a child vehicle according to an embodiment of the present invention.

[0112] Figure 46 for Figure 45 A magnified view of a section at point B.

[0113] Figure 47 This is a schematic diagram of the storage state of a child vehicle according to an embodiment of the present invention.

[0114] Figure 48 This is a structural diagram of a fixed support and a first movable support connected according to the present invention.

[0115] Figure 49 This is a structural diagram of a fixed support and a second movable support connected according to the present invention.

[0116] Figure 50 This is a structural diagram of a connector according to an embodiment of the present invention.

[0117] Figure 51 This is an exploded view of a connecting mechanism according to an embodiment of the present invention.

[0118] Figure 52 This is a cross-sectional view of a connecting mechanism according to an embodiment of the present invention.

[0119] In the above attached figures, Child vehicles; 101. Accommodation space; 1. Column assembly; 11. Column; 110. Slide groove; 12. Support leg; 121. Locking groove; 122. Locking surface; 123. First blocking surface; 13. Limiting block; 14. Upper stop block; 141. Second blocking surface; 15. Stop groove; 151. Upper groove wall; 152. Lower groove wall; 17. Button seat; 171. Stop block; 172. Stop block elastic element; 173. Button; 174. Button elastic element; 175. Contact slope; 2. Fixed bracket; 21. Third frame; 22. Connector; 221. Connecting hole; 222. Locking groove; 223. Power female connector; 23. Fixed connector; 230. Body; 231. Hook; 2311. Guide slope; 232. Locking pin; 24. Fixed bracket removal button; 3. First moving bracket; 30. First frame; 31. Sliding sleeve; 310. Clearance groove; 311. Locking hole; 4. Second moving bracket; 40. Second enclosure; 41. Bearing plate; 410. Perforation; 411. Handle; 42. Slider; 43. Damping block; 431. Upper surface; 432. Lower surface; 44. Second elastic element; 44. Connecting seat; 45. Locking block; 451. Locking groove; 5. Connecting belt; 6. Cloth cover; 7. Locking mechanism; 70. Locking element; 701. Lock hook; 702. Lower surface; 71. Locking seat; 710. Pivot; 72. Unlocking element; 73. Torsion spring; 74. Handle; 8. Elastic band; 9. Accessory rod; 91. Upper rod; 911. Longitudinal section; 912. Transverse section; 913. Upper housing; 914. Upper fixing block; 9141. Upper tooth; 9142. Guide part; 915. Fourth elastic element; 92. Fixing seat; 920. Fixing shaft; 9201. Limiting pin; 921. Lower fixing block; 9211. Lower tooth; 9212. Tooth groove; 922. Receiving groove; 93. Plug; 931. First through hole; 932. Second through hole; 933. Pin; 934. Power connector; 94. Locking plate; 941. Locking block; 941a. Guide slope; 942. Unlocking block; 95. Third elastic element; 96. Unlocking button; 961. Push block. Detailed Implementation

[0120] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is for the purpose of aiding understanding the present invention, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0121] In this document, the terms “up,” “down,” “left,” “right,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings with the seating mechanism in a seated position. They are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0122] Figures 1 to 52 The diagrams are drawn to scale. To keep the instructions concise, the proportions of each component are not listed individually. However, the proportions and positions of each component should be considered part of the contents of this instruction manual.

[0123] Child vehicles Figures 1 to 3 An embodiment of a child carrier 100 is shown. The child carrier 100 has a accommodating space 101 for accommodating a child, where the child can sit, lie down, or play, thus confining the child within it. The child carrier 100 can be a children's bed, bassinet, playpen, bed rail, etc. The child carrier 100 includes a frame and a fabric cover 6 mounted on the frame, which can be fixedly connected to the frame. The accommodating space 101 is covered by the fabric cover 6 on all four sides, and the upper part of the accommodating space 101 is open. The height of the top of the frame of the child carrier 100 remains constant in each usage state.

[0124] The child carrier 100 is height-adjustable, specifically by adjusting the depth of the aforementioned accommodating space 101 to accommodate a child's height. This prevents the child from falling out while allowing caregivers to easily place or remove the child from the accommodating space 101. The child carrier 100 has multiple usage modes, each with a different depth of the accommodating space 101. Figure 1 The first usage state is shown. Figure 2 The second usage state is shown. Figure 3 The third usage state is shown. Figure 1 The depth of the accommodating space 101 is at its maximum in the first usage state shown. Figure 2 The depth of the accommodating space 101 in the second usage state shown is next. Figure 3 The depth of the accommodating space 101 is minimized in the third usage state shown. In other embodiments, the child vehicle 100 may also have a fourth usage state, a fifth usage state, etc., and the number of usage states may not be limited to 3, 4, or 5.

[0125] Child vehicle frame 100 Figure 4 An embodiment of the skeleton of a child vehicle 100 is shown. Combined with... Figure 4 and Figure 5 As shown, the child vehicle 100 includes a column assembly 1, a fixed support 2, a first movable support 3, a second movable support 4, and a connector. The fixed support 2 is disposed on the column assembly 1. The first movable support 3 and the second movable support 4 are movable relative to the column assembly 1. The connector rests on the fixed support 2 and has a first connecting portion and a second connecting portion located on both sides of the fixed support 2. The first connecting portion is connected to the first movable support 3, and the second connecting portion is connected to the second movable support 4, such that when the first movable support 3 moves, the second movable support 4 moves in the opposite direction. The distance the first movable support 3 moves is approximately equal to the distance the second movable support 4 moves.

[0126] There are multiple column components 1, and the multiple column components 1 are roughly parallel. Figure 4 In the illustrated embodiment, the child vehicle 100 includes four pillar assemblies 1. In other embodiments, the child vehicle 100 may include two, three, five, or six pillar assemblies 1, etc., and the number in use may not be limited to four.

[0127] like Figure 5 As shown, the support column assembly 1 includes a vertically extending column 11, the lower end of which can be supported on the ground or other objects (e.g., a bed frame). In this embodiment, the column 11 extends vertically. In other embodiments, the column 11 may deviate from the vertical direction at a certain angle, which may be less than 30 degrees. The column 11 is provided with a groove 110 extending in the vertical direction, preferably located on the inner side of the column 11 (facing the receiving space 101).

[0128] The column assembly 1 includes a support leg 12, which is located at the bottom end of the column 11. The support leg 12 is fixed to the bottom end of the column 11, and the bottom end of the aforementioned sliding groove 110 terminates at the support leg 12, that is, a portion of the upper surface of the support leg 12 is located in the sliding groove 110, forming the bottom wall of the sliding groove 110. The column 11 is hollow and open at both the top and bottom ends, and the upper part of the support leg 12 is inserted into the bottom end of the column 11.

[0129] The column assembly 1 also includes a limiting block 13 disposed on the column 11, the limiting block 13 being located above the support leg 12. The limiting block 13 is fixed to the column 11, and the limiting block 13 protrudes relative to the column 11, specifically protruding inward (toward the receiving space 101). There are two limiting blocks 13, the two limiting blocks 13 being parallel to each other and respectively located on both sides of the slide groove 110.

[0130] The fixed bracket 2 is transverse to the column assembly 1 and is fixed to the top of the column assembly 1. The fixed bracket 2 includes a third frame 21 connected end to end, and the third frame 21 is horizontally arranged. In a top view, the third frame 21 is a closed ring, such as a rectangular ring or a rounded rectangular ring. The third frame 21 is fixed to the top of the column 11. Specifically, multiple downwardly extending connectors are fixed on the third frame 21, and the connectors are inserted into the top of the column 11.

[0131] The first movable support 3 is transverse to the column assembly 1 and is located below the fixed support 2. The first movable support 3 includes a first frame 30 connected end to end, which is horizontally positioned. In a top view, the first frame 30 is a closed ring, such as a rectangular ring or a rounded rectangular ring; and the first frame 30 is completely obscured by the third frame 21. The first movable support 3 is slidably connected to the column assembly 1 and can slide up and down along the column 11. Specifically, the first movable support 3 includes a sliding sleeve 31, which is fixed to the first frame 30. The sliding sleeve 31 is fitted onto the column 11 and can slide up and down along the column 11. The sliding sleeve 31 has a relief groove 310 that extends from the top to the bottom of the sliding sleeve 31. The relief groove 310 can be aligned with the sliding groove 110 on the column 11, and the width of the relief groove 310 is the same as the width of the sliding groove 110.

[0132] like Figure 6 As shown, the second movable support 4 is transverse to the column assembly 1 and located below the fixed support 2. The second movable support 4 includes a second frame 40 connected end to end, which is horizontally positioned. In a top view, the second frame 40 is a closed ring, such as a rectangular ring or a rounded rectangular ring. The dimensions of the second frame 40 are smaller than the third frame 21, and the second frame 40 is located inside the column assembly 1. The second movable support 4 is slidably connected to the column assembly 1 and can slide up and down along the column 11. Specifically, the second movable support 4 includes a slider 42, which is fixed to the second frame 40 and protrudes outward. The slider 42 is inserted into the slide groove 110 and can slide up and down in the slide groove 110. The clearance groove 310 on the sliding sleeve 31 allows the slider 42 to pass through, and the slider 42 can also pass through the clearance groove 310 of the sliding sleeve 31 during the sliding process in the slide groove 110.

[0133] The second movable support 4 is provided with a support plate 41, which defines the bottom of the receiving space 101. The aforementioned second frame 40 and third frame 21 enclose the receiving space 101, with the support plate 41 defining the bottom of the receiving space 101. The height of the support plate 41 determines the depth of the receiving space 101. As the height of the support plate 41 increases, the depth of the receiving space 101 decreases. The depth of the receiving space 101 can be adjusted by raising or lowering the support plate 41. The support plate 41 is a horizontal plate-shaped component and can be used as a bed board; in this case, the child carrier 100 is a crib. The support plate 41 may have multiple ventilation holes and may be covered with fabric.

[0134] The column 11, the first frame 30, the second frame 40, and the third frame 21 can be made of hollow tubular components with smooth surfaces. The perimeters of the first frame 30 and the third frame 21 are approximately equal, while the perimeter of the second frame 40 is smaller than that of the third frame 21 or the first frame 30, allowing the second movable support 4 to pass vertically through the first fixed support 2. The first frame 30 is located directly below the third frame 21.

[0135] The connector includes a flexible, breathable fabric (such as mesh) or a rope. The connector can be a cover 6 or a portion thereof; or the connector can be an additional strip-shaped connecting band 5. In this embodiment, the connector is a connecting band 5 layered with the cover 6, such as a breathable fabric band (mesh band). The first connecting portion and the second connecting portion are the two ends of the connecting band 5, and the middle portion of the connecting band 5 wraps around the fixed support 2 from above, such that the first connecting portion and the second connecting portion are located on the outer and inner sides of the fixed support 2, respectively. In other words, the portion between the two ends of the connecting band 5 wraps around the fixed support 2, and the two ends of the connecting band 5 hang vertically on the inner and outer sides of the fixed support 2, respectively. That is, the connecting band 5 folds back from the fixed support 2, forming two segments. In this embodiment, the connecting band 5 is covered by the cover 6. In other embodiments, the connecting band 5 can be a portion of the cover 6. When the first movable support 3 slides downward, the connecting band 5 drives the second movable support 4 to slide upward; conversely, when the second movable support 4 slides downward, the connecting band 5 drives the first movable support 3 to slide upward. The first section of the connecting belt 5 (located inside the receiving space 101) is tensioned between the second moving bracket 4 and the fixed bracket 2, and the second section of the connecting belt 5 (located outside the receiving space 101) is tensioned between the fixed bracket 2 and the first moving bracket 3.

[0136] In multiple usage states of the child carrier 100, the heights of the first movable support 3 and the second movable support 4 are different. Taking the first and second usage states as examples, the height of the first movable support 3 in the first usage state is higher than its height in the second usage state, and the height of the second movable support 4 in the first usage state is lower than its height in the second usage state, so as to adjust the depth of the aforementioned accommodating space 101. The first movable support 3 or the second movable support 4 is provided with a locking element. When the child carrier 100 is in one of the usage states (first usage state or second usage state), the locking element and the column assembly 1 are locked together to stabilize the child carrier 100 in the corresponding usage state. In each usage state, the height of the fixed support 2 remains unchanged, and the top of the aforementioned accommodating space 101 is defined by the first enclosure 30. Therefore, the height of the top of the accommodating space 101 is fixed, and only the depth changes.

[0137] A fabric cover 6 covers the fixed support 2. The outer edge of the fabric cover 6 is connected to the first movable support 3, and the inner edge of the fabric cover 6 is connected to the second movable support 4. Specifically, the outer edge of the fabric cover 6 is fixed to the first frame 30 of the first movable support 3, and the inner edge of the fabric cover 6 is fixed to the second frame 40 of the second movable support 4. The first section of the fabric cover 6 (located inside the receiving space 101) is tensioned between the second movable support 4 and the fixed support 2, and the second end of the fabric cover 6 (located outside the receiving space 101) is tensioned between the fixed support 2 and the first movable support 3. As the height of the second movable support 4 increases, the depth of the receiving space 101 decreases, and excess fabric cover 6 will flip to the outside of the receiving space 101 as the first movable support 3 slides downward. During height adjustment, the fabric cover 6 and the connecting strap 5 remain taut, with smooth inner surfaces, and will not loosen or accumulate inside the receiving space 101. In any usage state, the fabric cover 6 has uniform tension, and the connecting strap 5 has uniform tension. The height of the child carrier 100 is adjustable to accommodate the needs of children at different stages of growth. Height adjustment is achieved by moving the first movable support 3 to the second movable support 4; the adjustment is convenient and smooth. During adjustment, the connecting strap 5 and fabric cover 6 between the first and second movable supports 3 and 4 are prevented from accumulating inside the accommodating space 101, providing a safe and breathable internal environment and reducing the risk of suffocation caused by the accumulation of connecting straps 5 or fabric inside.

[0138] Locking mechanism Reference Figures 7 to 21The child vehicle 100 includes a locking mechanism 7 for locking the first movable support 3 and the column assembly 1, or the second movable support 4 and the column assembly 1. The locking mechanism 7 includes a locking seat 71 disposed on the first movable support 3 or the second movable support 4, and a locking member 70 movably disposed on the locking seat 71. The locking mechanism 7 is in a locked state when the locking member 70 is engaged with the column assembly 1; the locking mechanism 7 is in an unlocked state when the locking member 70 is disengaged from the column assembly 1. The locking mechanism 7 is in a locked state when the child vehicle 100 is in one of its usage states; it is in an unlocked state when switching between different usage states.

[0139] Combination Figure 7 and Figure 8 As shown, the locking mechanism 7 also includes an elastic element and an unlocking element 72. The elastic element is disposed between the locking element 70 and the locking seat 71 to give the locking element 70 a tendency to move toward the column assembly 1. The unlocking element 72 is connected to the locking element 70 to drive the locking element 70 away from the column assembly 1. In this embodiment, the locking element 70 is rotatably connected to the locking seat 71 via a pivot 710, and the elastic element includes a torsion spring 73 disposed on the pivot 710.

[0140] In this embodiment, the locking seat 71 is disposed on the second movable support 4, and can lock the second movable support 4 and the column assembly 1. Specifically, the locking seat 71 is fixed to the slider 42 of the second movable support 4. The locking mechanism 7 also includes a handle 74, which is located above the second movable support 4. The handle 74 is connected to the unlocking member 72, and the support plate 41 is provided with a through hole 410 for the unlocking member 72 to pass through. The unlocking member 72 is a strip-shaped component and can be flexible. The lower end of the unlocking member 72 is fixed to the locking member 70, and the unlocking member 72 passes through the through hole 410 to the top of the support plate 41 and is connected to the handle 74. The handle 74 is a ring-shaped component, which allows the user's finger to pass through for easy operation. In some other embodiments, the locking seat 71 can be disposed on the first movable support 3, and the locking member 70 can lock the first movable support 3 and the column assembly 1.

[0141] The support plate 41 is provided with a handle 411, which has a ring-shaped portion to allow a person to pull on both the handle 411 and the handle 74 at the same time. The handle 411 is located on the outside of the handle 74 and the two are adjacent to each other. When adjusting the height, the thumb is inserted into the ring of the handle 74 and the other four fingers are inserted into the handle 411 to unlock the locking member 70 and pull the support plate 41 at the same time.

[0142] The locking member 70 has a protruding locking hook 701. When the child carrier 100 is in one of its operating states, the locking hook 701 and the locking surface on the support leg 12 of the column assembly 1 engage with each other to lock the first movable support 3 or the second movable support 4 to the column assembly 1. In this embodiment, the support leg 12 is provided with a locking groove 121, and the locking groove 121 has a downward-facing locking surface 122. The locking hook 701 can be inserted into the locking groove 121 and is engaged with the locking surface 122 to lock the locking mechanism 7. The locking mechanism 7 is located entirely inside the column assembly 1, and the locking hook 701 protrudes outward. The torsion spring 73 gives the locking hook 701 a tendency to move outward, so that when the locking hook 701 and the locking groove 121 are substantially level, if the locking member 70 is released, the locking hook 701 can automatically insert into the locking groove 121.

[0143] When the child vehicle 100 is in one of its operating states, the locking member 70 can engage with the limiting block 13 of the column 11 to lock the first movable bracket 3 to the column assembly 1. In this embodiment, the locking member 70 can slide above the limiting block 13, and the lower surface 702 of the locking member 70 abuts against the limiting block 13 to achieve locking.

[0144] When the child vehicle 100 is in one of its operating states, the locking member 70 can engage with the sliding sleeve 31 to lock the second movable bracket 4 to the column assembly 1. In this embodiment, the locking member 70 can slide above the sliding sleeve 31, and the lower surface 702 of the locking member 70 can abut against the sliding sleeve 31 to achieve locking.

[0145] Specifically, the child vehicle 100 may have a first use state, a second use state, and a third use state. Figure 1 , Figure 4 , Figures 9 to 13 The first use state of the child vehicle 100 is shown. In the first use state, the locking hook 701 is inserted into the locking groove 121 and the locking hook 701 is locked on the locking surface 122 so that the locking mechanism 7 is in the locked state and the second moving bracket 4 is stable in the first position. Figure 2 , Figures 14 to 17 The second use state of the child vehicle 100 is shown. In the second use state, the locking member 70 is located above the limiting block 13, and the lower surface 702 of the locking member 70 abuts against the limiting block 13 to lock the locking mechanism 7. The second moving bracket 4 is stable in the second position. Figure 3 , Figures 18 to 21The third usage state of the child vehicle 100 is shown. In this state, the locking member 70 is positioned above the sliding sleeve 31, and the lower surface 702 of the locking member 70 abuts against the sliding sleeve 31, thereby locking the locking mechanism 7. The second movable support 4 is stably positioned in the third position. The second position of the second movable support 4 is higher than the first position but lower than the third position. Conversely, the position of the first movable support 3 in the second usage state is lower than its position in the first usage state but higher than its position in the third usage state.

[0146] The child carrier 100 includes multiple pillar assemblies 1 and at least two locking mechanisms 7. The first movable support 3 or the second movable support 4 is locked to at least two of the multiple pillar assemblies 1 via the at least two locking mechanisms 7. Specifically, in this embodiment, the two locking mechanisms 7 are located at two diagonally opposite positions and lock to the two diagonally opposite pillar assemblies 1. Correspondingly, the second movable support 4 is provided with two handles 411, which are correspondingly arranged with the handles 74 of the two locking mechanisms 7, facilitating simultaneous operation by the operator's hands. In other embodiments, the second frame 40 includes a pair of long sides and a pair of short sides, with the first short sides arranged opposite each other and connected by the pair of long sides, and the two handles 411 arranged adjacent to the two short sides.

[0147] When unlocking, the aforementioned locking mechanism 7 involves pulling the handle 74 upwards, causing the locking element 70 to move inwards and disengage from the locking surface 122, the limiting block 13, or the sliding sleeve 31 on the column assembly 1. When locking is required, the handle 74 is released, and the locking element 70 is reset under the action of the torsion spring 73, thus achieving locking. The embodiment uses the following reminder structure to prompt the user when to release the handle 74.

[0148] Reminder Structure The slider 42 has a reminder element or is provided with a reminder element on the slider 42. During the sliding of the slider 42, the reminder element has a position that can abut against or engage with the column assembly 1 to remind the user to release the unlocking member 72. In some embodiments, the column assembly 1 may include a blocking surface located above or below the slider 42, and the reminder element is the top or bottom of the slider 42. The top or bottom can abut against the blocking surface. At this time, the slider 42 is blocked and cannot continue to slide in the original direction. The operator can know that the slider 42 has slid to the corresponding position and can release the handle 74 to reset the locking member 70 to the locked state. Optionally or further, the column assembly 1 includes a stop groove 15, and the reminder element includes a damping block 43 movably disposed on the slider 42 and a second elastic member 44 disposed between the damping block 43 and the slider 42. The damping block 43 has a state of being inserted into the stop groove 15 and a position of being disengaged from the stop groove 15. During the movement of slider 42, if damping block 43 moves to the height where the stop grooves 15 are aligned, damping block 43 can be automatically inserted into stop groove 15 under the action of second elastic element 44. The operator can perceive this change and release handle 74 at the appropriate position, so that locking element 70 is reset to the locked state.

[0149] The following are some specific reminder structures.

[0150] Combination Figure 10 and Figure 13 As shown, the support leg 12 has a first blocking surface 123 facing upwards. This first blocking surface 123 is the portion of the support located at the bottom of the slide groove 110, and it actually forms the bottom wall of the slide groove 110. The first blocking surface 123 is located directly below the slider 42 of the second movable support 4. During the process of the child vehicle 100 switching to the first use state, the bottom of the slider 42 has a position against the first blocking surface 123 to remind the user to release the unlocking piece 72.

[0151] Reference Figures 22 to 26 As shown, the column 11 is provided with a stop groove 15, which communicates with the slide groove 110. The stop groove 15 is located above the support leg 12. A damping block 43 is provided in the slider 42. The damping block 43 can extend out of or retract into the slider 42. A second elastic member 44 is provided between the damping block 43 and the slider 42. During the process of the child vehicle 100 switching to one of the usage states (second usage state), the damping block 43 is inserted into the stop groove 15 to remind the unlocking member 72 to be released. The second elastic member 44 is a compression spring. The second elastic member 44 is provided in the mounting hole of the slider 42. The damping block 43 can be inserted laterally into the mounting hole. A part of the damping block 43 can extend out of the mounting hole, while the other part is restricted in the mounting hole. One end of the second elastic member 44 abuts against the slider 42, and the other end abuts against the damping block 43.

[0152] The damping block 43 has an upper surface 431 and a lower surface 432 with an inclined or rounded transition, and the stop groove 15 has an upper groove wall 151 and a lower groove wall 152 with an inclined or rounded transition, so as to allow the damping block 43 to disengage from the stop groove 15 during the sliding of the slider 42. When the child vehicle 100 is switched to another use state, such as from the second use state to the first use state or the third use state, the damping block 43 disengages from the stop groove 15.

[0153] Combination Figure 18 and Figure 20 As shown, the column assembly 1 also includes an upper stop 14 disposed on the column 11. The upper stop 14 is located above the stop groove 15 or the limiting block 13, and has a downward-facing second blocking surface 141. During the transition of the child vehicle 100 to one of the usage states (the third usage state), the top of the slider 42 has a position abutting against the second blocking surface 141 to remind the user to release the unlocking member 72.

[0154] During the transition of the child vehicle 100 to the first use state, the second moving bracket 4 slides downward along the column 11, and the slider 42 moves in the slide groove 110. When the bottom of the slider 42 hits the first blocking surface 123 of the support leg 12, the operator will feel resistance. At this time, the handle 74 can be released, and the locking hook 701 of the locking member 70 is inserted into the locking groove 121 to lock the child vehicle 100 in the first use state.

[0155] During the transition of the child vehicle 100 to the second use state, the second moving bracket 4 slides up or down along the column 11, and the slider 42 moves in the slide groove 110 accordingly. After the damping block 43 is inserted into the stop groove 15, the operator will feel the resistance of the damping block 43 disengaging from the stop groove 15 as the slider 42 slides through the stop groove 15. At this time, the handle 74 can be released, and the lower surface of the locking member 70 abuts against the upper surface of the limiting block 13, and the child vehicle 100 is stabilized in the second use state.

[0156] During the transition of the child vehicle 100 to the third use state, the second moving bracket 4 slides upward along the column 11, and the slider 42 moves in the slide groove 110. When the top of the slider 42 hits the second blocking surface 141 of the upper stop block 14, the operator will feel resistance. At this time, the handle 74 can be released, and the lower surface of the locking member 70 abuts against the upper surface of the sliding sleeve 31, locking the child vehicle 100 in the third use state.

[0157] elastic band Reference Figures 27 to 30The child vehicle 100 also includes an elastic band 8, which has a first portion connected to a first movable support 3 or a second movable support 4, and a second portion connected to a column assembly 1 or a fixed support 2. The elastic band 8 is elastic and can switch between a retracted and extended state, providing assistance for height adjustment. When the elastic band 8 is in the extended state, the height of the second movable support 4 is less than the height of the second movable support 4 when the elastic band 8 is in the retracted state, thus the elastic band 8 can provide assistance in raising the second movable support 4.

[0158] The elastic band 8 can be connected between the first movable support 3 and the column assembly 1, or between the second movable support 4 and the column assembly 1. In this embodiment, the upper end of the elastic band 8 is connected to the first movable support 3, and the lower end of the elastic band 8 is connected to the bottom of the column assembly 1. In other embodiments, the elastic band 8 can be connected between the second movable support 4 and the column assembly 1; for example, the lower end of the elastic band 8 is connected to the second movable support 4, and the upper end of the elastic band 8 is connected to the top of the column assembly 1. In still some embodiments, the elastic band 8 can be connected between the first movable support 3 and the fixed support 2, or between the second movable support 4 and the fixed support 2.

[0159] The child vehicle has over 100 usage states. The height of the first movable support 3 varies in each usage state. In one usage state, the elastic band 8 is in a contracted state; in other usage states, the elastic band 8 is in an extended state. The multiple usage states include a first usage state and a second usage state. The height of the first movable support 3 in the first usage state is greater than its height in the second usage state. In the first usage state, the elastic band 8 is extended and tends to move the first movable support 3 downwards, which also tends to move the second movable support 4 upwards. In the second usage state, the elastic band 8 is extended and tends to continue moving the first movable support 3 downwards, which also tends to move the second movable support 4 upwards.

[0160] The vehicle has multiple usage states, including a third usage state. The height of the first movable support 3 in the first or second usage state is greater than its height in the third usage state. In the first or second usage state, the elastic band 8 is extended and tends to move the first movable support 3 downwards, which in turn tends to move the second movable support 4 upwards. In the third usage state, the elastic band 8 is contracted, and the first movable support 3 is not subjected to tension from the elastic band 8.

[0161] Specifically, in this embodiment, the upper end of the elastic band 8 is connected to the sliding sleeve 31, and the lower end of the elastic band 8 is connected to the support leg 12. For example, the upper end of the elastic band 8 can be locked to the sliding sleeve 31 by screws, and the lower end of the elastic band 8 can be locked to the support leg 12 by screws.

[0162] The threading path is defined on the column 11 by protrusions or ridges, and the elastic band 8 is laid along the threading path. The elastic band 8 is confined to the side of the slide groove 110; for example, two elastic bands 8 are arranged side by side and located on both sides of the slide groove 110 respectively.

[0163] The elastic band 8 includes plastic or metal materials with good elasticity, such as latex, PU, ​​etc.

[0164] During downward height adjustment, the gravity of the second movable support 4 provides adjustment assistance; during upward height adjustment, the first movable support 3 and the elastic band 8 provide assistance to move the first movable support 3 downward. The height adjustment process is relatively effortless. The weight of the first movable support 3 can be greater than the weight of the second movable support 4.

[0165] Accessory rod Reference Figure 31 The child vehicle 100 also includes an accessory rod 9, which can be used to set toys or accessories; the accessory rod 9 can also be equipped with a power supply line, and can be used to set sound and light toys, monitoring equipment, speakers and other accessories.

[0166] like Figure 31 and Figure 32 As shown, the accessory rod 9 includes an upper rod 91. The upper rod 91 includes a longitudinal section 911 and a transverse section 912. The longitudinal section 911 extends upward from the fixed bracket 2, and the transverse section 912 extends laterally from the upper end of the longitudinal section 911 and can be located directly above the receiving space 101. Toys and other accessories can be hung on the transverse section 912, and these accessories can be within the child's line of sight, especially by a child in a lying position.

[0167] The transverse section 912 may be provided with a mounting part for attaching accessories or toys to the child vehicle 100.

[0168] The cover 6 of the child carrier 100 covers the fixed support 2, and the cover 6 may have one or more openings for the attachment rod 9 to pass through. In at least one use state, the openings of the child carrier 100 are located at the top of the top support or the top of the column assembly 1, and the attachment rod 9 passes through the openings and connects to the fixed support 2 or the column assembly 1.

[0169] Installation and removal of accessory rod 9 Reference Figures 32 to 36The accessory rod 9 can be installed or removed as needed. The column assembly 1 or the fixed bracket 2 is provided with a connector 22, and the accessory rod 9 has an installed state connected to the connector 22 and a disassembled state disconnected from the connector 22.

[0170] The accessory rod 9 includes a plug 93 and a locking plate 94, the locking plate 94 being movably connected to the plug 93 and having a locking block 941. The connector 22 includes a plug hole 221, the wall of which has a locking groove 222. When the accessory rod 9 is in the installed state, the plug 93 is inserted into the plug hole 221, and the locking block 941 is located in the locking groove 222. The locking groove 222 has a locking surface (the upper groove wall of the locking groove 222) that can contact the locking block 941 and prevent the plug 93 from disengaging from the plug hole 221. When the accessory rod 9 is in the disassembled state, the locking block 941 disengages from the locking groove 222, and the plug 93 disengages from the plug hole 221.

[0171] Combination Figure 33 and Figure 36 As shown, the locking plate 94 is disposed within the plug 93. The outer wall of the plug 93 has a first through hole 931 through which the locking block 941 can pass. The accessory rod 9 also includes a third elastic member 95 that abuts against or connects to the locking plate 94. The third elastic member 95 has a tendency to extend the locking block 941 from the first through hole 931 to the outside of the plug 93. The third elastic member 95 can be a laterally arranged compression spring, disposed between the locking plate 94 and the inner surface of the plug 93. In both the installed and disassembled states, the locking block 941 is located outside the plug 93, and the third elastic member 95 is in its initial state, such as... Figure 34 As shown. When accessory rod 9 is switched between the installed and disassembled states, locking block 941 retracts into plug 93, and third elastic element 95 is in a deformed state (i.e., a compressed state), as... Figure 35 As shown.

[0172] Specifically, the locking plate 94 is rotatably connected to the plug 93 via a pin 933, and the locking plate 94 can rotate relative to the plug 93; as the locking plate 94 rotates, the locking block 941 can extend or retract. The locking plate 94 also has an unlocking block 942, which is higher than the locking block 941, and both the unlocking block 942 and the locking block 941 protrude in the same direction. The outer wall of the plug 93 is also provided with a second through hole 932 through which the unlocking block 942 can pass. When the accessory rod 9 is in the installed state, the unlocking block 942 extends from the second through hole 932 to the outside of the plug 93, and the unlocking block 942 is located above the insertion hole 221. When unlocking, pressing the unlocking block 942 causes the locking plate 94 to rotate as a whole, and the locking block 941 retracts accordingly, thus unlocking.

[0173] The accessory rod 9 also includes a fixed base 92 and an unlocking button 96. The fixed base 92 is connected to the lower end of the upper rod 91, and the upper end of the plug 93 is connected to the fixed base 92. The unlocking button 96 is movably disposed on the fixed base 92 and has a push block 961 that pushes the locking block into the plug 93. In this embodiment, the fixed base 92 has an inner cavity, the upper end of the plug 93 is inserted into the fixed base 92, and the unlocking block 942 is even inside the fixed base 92. The unlocking button 96 is slidably disposed on the fixed base 92, and the push block 961 is located inside the fixed base 92. Pressing the unlocking button 96 inward, the push block 961 will push the unlocking block 942 back into the plug 93, causing the locking piece 94 to rotate, thereby unlocking the locking block 941 and the locking groove 222. The fixed base 92 has a positioning post that restricts the unlocking button 96 to prevent the unlocking button 96 from falling off the fixed base 92.

[0174] Combination Figure 36 As shown, the locking block 941 has a guide slope 941a, or the connector 22 has a guide slope. During the insertion of the plug 93 into the connector hole 221, the locking block 941 and the connector 22 come into contact. Under the action of the guide slope 941a, the locking block 941 is pushed back into the plug 93; until the locking block 941 reaches the height of the locking groove 222, under the action of the third elastic member 95, the locking block 941 automatically extends and inserts into the locking groove 222, thus locking the connector 22 and the plug 93. In this embodiment, the guide slope 941a is provided on the locking block 941, specifically a part of the lower surface of the locking block 941, and this guide slope 941a gradually slopes upwards in a direction away from the locking piece 94. When connecting the accessory rod 9, align the plug 93 with the connector hole 221 and then insert it. See also... Figure 34 When disassembling accessory rod 9, press unlock button 96 in the direction of arrow D, and lock plate 94 rotates in the direction of arrow C, so that lock block 941 disengages from locking groove 222. Pull plug 93 upward in the direction of arrow E.

[0175] One of the accessory rod 9 and the connector 22 is provided with a male power connector 934, and the other is provided with a female power connector 223. When the accessory rod 9 is installed, the male power connector 934 and the female power connector 223 are connected to each other to form a power supply circuit. In this embodiment, the female power connector 223 is located at the bottom of the plug hole 221, and the male power connector 934 is located at the bottom of the plug 93 of the accessory rod 9. When the plug 93 is inserted into the plug hole 221, the male power connector 934 and the female power connector 223 are also connected.

[0176] Angle adjustment of accessory rod Combination Figure 31 , Figures 37 to 39As shown, the accessory rod 9 can have multiple operating angles, and its position can be adjusted as needed, making it more flexible to use. In particular, the lateral segment 912 of the accessory rod 9 can be rotated in the horizontal plane to the required angle, such as rotating it to be directly above the receiving space 101 or to the outside of the receiving space 101.

[0177] Reference Figures 40 to 42 The accessory rod 9 includes a fixed base 92 and an upper rod 91 that can rotate relative to the fixed base 92. A fixed shaft 920 is provided on the fixed base 92. The upper rod 91 includes an upper housing 913, which is rotatably fitted onto the upper end of the fixed shaft 920. The lower part of the fixed shaft 920 serves as the aforementioned plug 93. The upper rod 91 also includes an upper fixing block 914 and a fourth elastic member 915. The upper fixing block 914 is movably disposed within the upper housing 913 along the fixed shaft 920. The fourth elastic member 915 is disposed between the upper fixing block 914 and the upper housing 913 to press the upper fixing block 914 against the upper surface of the fixed base 92.

[0178] Combination Figure 42 As shown, the upper fixing block 914 has a plurality of downwardly extending upper teeth 9141, which are spaced apart along the circumferential direction of the fixing shaft 920; the fixing seat 92 has a lower fixing block 921, which has a plurality of upwardly extending lower teeth 9211, which are spaced apart along the circumferential direction of the fixing shaft 920; the plurality of upper teeth 9141 and the plurality of lower teeth 9211 mesh with each other, and the tooth surfaces of the upper teeth 9141 and / or lower teeth 9211 are inclined surfaces to allow the upper teeth 9141 to slide on the tooth surfaces of the lower teeth 9211 when the upper rod 91 rotates relative to the fixing seat 92, and the upper rod 91 is stationary relative to the fixing seat 92 when the upper teeth 9141 enter the tooth groove 9212 between adjacent lower teeth 9211. The lower fixing block 921 has a receiving groove 922, and the lower teeth 9211 are formed on the bottom wall of the receiving groove 922, into which the upper teeth 9141 are inserted.

[0179] A fixed shaft 920 passes through an upper fixed block 914, which is rotatable around the fixed shaft 920. A limiting pin 9201 is provided at the upper end of the fixed shaft 920, and the upper fixed block 914 is constrained between the limiting pin 9201 and the fixed seat 92. The fourth elastic element 915 includes a compression spring sleeved on the fixed shaft 920, with its upper end abutting against the upper housing 913 and its lower end abutting against the fixed seat 92. A guide portion 9142 extending in the vertical direction is provided on the upper fixed block 914, and the guide portion 9142 is slidably connected to the upper housing 913 to allow the upper fixed block 914 to move in the vertical direction and rotate with the upper housing 913.

[0180] The fixed shaft 920 passes through the lower fixed block 921, and the lower fixed block 921 is fixed relative to the fixed shaft 920. The aforementioned unlocking button 96 is located below the lower fixed block 921 and is fitted onto the downwardly extending positioning post of the lower fixed block 921.

[0181] When the angle of the accessory rod 9 needs to be adjusted, the upper rod 91 is rotated, and the upper fixed block 914 rotates relative to the lower fixed block 921. During the rotation, the upper tooth 9141 slides over the lower tooth 9211 due to the interaction between the inclined tooth surfaces of the upper tooth 9141 and the lower tooth 9211. When the rotation of the upper rod 91 stops, the upper tooth 9141 remains in the tooth groove 9212 between the adjacent lower teeth 9211, thereby keeping the upper rod 91 at the corresponding angle.

[0182] The upper rod 91 of the accessory rod 9 is rotatable, and the position of its lateral section 912 can be adjusted according to usage needs, making it flexible and convenient to use. Child vehicles equipped with this accessory rod 9 can, when needed, shift the accessory rod 9 to the outside of the child vehicle's receiving space, freeing up space above the receiving space.

[0183] Disassembly of child vehicles Reference Figures 43 to 52 The child carrier 100 is detachable and includes the aforementioned column assembly 1, multiple bracket assemblies, and connectors. The multiple brackets are transverse to the column assembly 1 and detachably connected to it. The child carrier has a detachable state where the multiple brackets separate from the column assembly and are interconnected. Specifically, at least one bracket has a first locking element, and other brackets have second locking elements. In the detachable state, the first and second locking elements engage with each other. For example, as will be described in detail below, the first locking element is a flexible or movable hook or block, and the second locking element includes a locking hole or engaging surface that cooperates with the hook or block. Each bracket includes a horizontally arranged frame. In the detachable state, the frames of the multiple brackets are stacked and interconnected, allowing the brackets to be stored in a relatively fixed and orderly manner without collision or friction. Figure 47 As shown below, the aforementioned multiple supports may include the fixed support 2 and the movable support, which includes the first movable support 3 and the second movable support 4.

[0184] The fixed support 2 has a fixed connector 23, which is detachably connected to the column assembly 1; the first movable support 3 and the second movable support 4 are also detachable from the column assembly 1. Specifically, multiple fixed connectors 23 are spaced apart along the perimeter of the third frame 21, each fixed connector 23 is inserted into the upper end of the corresponding column 11 of the column assembly 1, and can be pulled upward under external force. For example, Figure 46As shown, the fixed connector 23 is provided with a flexible hook 231, and the movable bracket is provided with a locking hole. When the child vehicle is in the disassembled state, the hook 231 is inserted into the locking hole; or, the movable bracket is provided with a locking block, and when the child vehicle is in the disassembled state, the locking block is locked on the locking pin 232 of the fixed connector 23.

[0185] When the child carrier is in the disassembled state, the fixed connector 23 detaches from the column 11, and the first movable support 3 and the second movable support 4 also separate from the column assembly 1. The fixed support 2, the first movable support 3, and the second movable support 4 are stacked and interlocked together. For example, the hook 231 on the fixed connector 23 is inserted into the locking hole 311 of the first movable support 3, and the locking groove 451 of the locking block 45 of the second movable support 4 is engaged with the locking pin 232 of the fixed connector 23. Figure 50 As shown.

[0186] like Figure 46 As shown, in this embodiment, the fixed connector 23 includes a body 230. A locking pin 232 is provided on the inner side of the body 230, and a hook 231 is provided on the other side (non-inner side) of the body 230. The lower end of the hook 231 is connected to the fixed connector 23, and there is a gap between the upper end of the hook 231 and the body 230. The hook 231 has a guide slope 2311 that can contact and cooperate with the inner surface of the sliding sleeve 31. Preferably, the hook 231 is provided on the outer side of the body 230. Here, the inner and outer sides of the body 230 are defined with reference to the longitudinal centerline of the child carrier, with the side closer to the longitudinal centerline being the inner side and the opposite side being the outer side. The fixed connector 23 can be integrally injection molded from a plastic with a certain elasticity. The above-described structure of the hook 231 allows the hook 231 to swing with its lower end as the pivot point.

[0187] The sliding sleeve 31 of the first movable support 3 is provided with a locking hole 311. The locking hole 311 and the locking hook 231 of the fixed connector 23 cooperate with each other. During the process of the fixed connector 23 being inserted into the column 11, the guide slope 2311 will contact the inner surface of the sliding sleeve 31. Under the pressure of the sliding sleeve 31, the locking hook 231 deforms inward and moves towards the body 230. After the upper end of the locking hook 231 is aligned with the locking hole 311 on the sliding sleeve 31, the locking hook 231 resets and enters the locking hole 311 to realize the mutual locking of the fixed support 2 and the first movable support 3.

[0188] Combination Figure 49 and Figure 50As shown. The second movable bracket 4 includes a connecting seat 44 disposed on the second frame 40, and the connecting seat 44 is detachably connected to the column assembly 1. A locking block 45 is movably disposed on the connecting seat 44, and a locking block elastic element is disposed between the locking block 45 and the connecting seat 44. When pressed by an external force, the locking block 45 retracts into the connecting seat 44; when the external force is removed and the locking block 45 is released, under the reset of the locking block elastic element, the locking block 45 extends outward relative to the connecting seat 44 and can be locked onto the locking pin 232 of the fixed connector 23.

[0189] like Figures 47 to 49 As shown, when the child vehicle is in the disassembled state, the fixed connector 23 is inserted into the sliding sleeve 31, the hook 231 is inserted into the locking block 45, and the locking block 45 of the second movable bracket 4 is locked onto the locking pin 232 of the fixed connector 23, realizing the mutual connection of the fixed bracket 2, the first movable bracket 3, and the second movable bracket 4. Further, the locking pin 232 is higher than the hook 231, the second frame is located inside the first frame and the third frame 21, the second frame is higher than the first frame, and the first frame is located below the third frame 21. During connection, the second movable bracket 4 and the fixed bracket 2 can be connected first, and then the first movable bracket 3 and the fixed bracket 2 can be connected.

[0190] The disassembly structure between each bracket and column assembly 1 is described in detail below.

[0191] A fixed bracket removal button 24 is movably mounted on the fixed connector 23. The column assembly 1 has a fixed bracket button hole that mates with the fixed bracket removal button 24. The fixed bracket removal button 24 can be detachably inserted into the fixed bracket button hole. When the child carrier is in the disassembled state, the fixed bracket removal button 24 disengages from the fixed bracket button hole. Furthermore, the fixed bracket removal button 24 is horizontally movable and inserted into the fixed connector 23, and is prevented from completely disengaging from the fixed connector 23 by a limiting structure, etc. An elastic reset element, such as a compression spring, is provided between the fixed connector 23 and the fixed bracket removal button 24. The fixed bracket removal button 24 can retract into the fixed connector 23 after being pressed, and automatically pops out when the external force is removed, driven by the elastic reset element. The column has a button hole. When the fixed connector 23 is inserted into the column, the fixed bracket disassembly button 24 extends outward and is inserted into the button hole. When disassembly is required, press the fixed bracket disassembly button 24 inward to retract it into the fixed connector 23. At this time, the fixed connector 23 can be pulled out upward to disassemble the fixed bracket 2 and the column assembly 1.

[0192] like Figure 51 and Figure 52As shown, the column assembly 1 also includes a button seat 17 disposed on the column 11, a stop 171 movably disposed on the button seat 17, and a button 173 for driving the stop 171 to move. The stop 171 has an extended position protruding outward relative to the column 11 and a retracted position retracting towards the column 11. In the extended position, the stop 171 is located above the movable support or abuts against the upper surface of the movable support to prevent the movable support from detaching from the column assembly 1; the retracted position of the stop 171 is configured to allow the movable support to move above the stop 171 to detach from the column assembly 1. Figure 44 As shown, the stop block 171 abuts against the connecting seat 44 of the second movable support 4, preventing the second movable support 4 from continuing to move upward.

[0193] In a further preferred embodiment, a stop 171 is movably disposed on a button base 17 along a first direction, and a button 173 is movably disposed on a button base 17 along a second direction. The first and second directions are perpendicular to each other. A contact ramp 175 is provided on the stop 171 and / or the button 173, and the stop 171 and the button 173 contact each other through the contact ramp 175. The contact ramp 175 is configured such that when the button 173 moves, it pushes the stop 171 to extend out of the button base 17 along the first direction. The button base 17 is provided with a stop elastic member 172 for resetting the stop 171 and a button elastic member 174 for resetting the button 173. Specifically, in this embodiment, the first and second directions are two directions in a horizontal plane. Pressing button 173 moves stop 171 outward, thus avoiding the height adjustment path of the first movable support 3 and the second movable support 4, allowing the first movable support 3 and the second movable support 4 to detach from the column assembly 1 from above. After releasing button 173, under the reset action of stop elastic element 172, stop 171 extends inward and is located above the height adjustment path of the first movable support 3 and the second movable support 4, limiting the highest position of the second movable support 4. Due to the obstruction of stop 171, the first movable support 3 and the second movable support 4 cannot slide above stop 171 and are restricted on the column 11.

[0194] The child vehicle is detachable, and the multiple supports can be connected to each other for convenient and neat storage, further reducing the storage volume after disassembly; it also reduces the risk of damage caused by friction and collision between parts, and helps to prevent individual parts from being scattered and lost.

[0195] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0196] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. In the event of any contradiction or inconsistency between the definitions used herein and those contained in other published documents, the definitions used herein shall prevail.

[0197] It should also be noted that "rotational connection" in the above embodiments refers to the pivot 710 connection, unless the context clearly indicates other rotational connection methods.

[0198] As indicated in this specification and claims, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list, as the method or apparatus may also include other steps or elements.

[0199] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "one," "," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0200] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0201] The above embodiments are only for illustrating the technical concept and features of the present invention, and are preferred embodiments. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the scope of protection of the present invention.

Claims

1. A height-adjustable child vehicle, characterized in that, include: Column assembly; A fixed bracket is mounted on the column assembly; The first movable support is movable relative to the column assembly; The second movable support is movable relative to the column assembly; A connector rests on the fixed support and has a first connecting portion and a second connecting portion located on both sides of the fixed support. The first connecting portion is connected to the first movable support, and the second connecting portion is connected to the second movable support, such that the second movable support moves in the opposite direction when the first movable support moves.

2. The child vehicle according to claim 1, characterized in that, The connector may include a flexible fabric or rope.

3. The child vehicle according to claim 2, characterized in that, The first connecting portion and the second connecting portion are the two ends of the connector, and the middle portion of the connector passes over the fixed bracket, such that the first connecting portion and the second connecting portion are located on the outer and inner sides of the fixed bracket, respectively.

4. The child vehicle according to claim 2, characterized in that, The first section of the connector is tensioned between the second movable support and the fixed support, and the second section of the connector is tensioned between the fixed support and the first movable support; the connector includes at least a portion of the fabric cover of the child carrier; or, the connector includes a strip-shaped connecting strap.

5. The child vehicle according to claim 1, characterized in that, The fixed support and the second movable support enclose a space for accommodating a child. The child carrier has multiple usage states, and the accommodating space has different depths in the multiple usage states.

6. The child vehicle according to claim 5, characterized in that, The second movable support is provided with a support plate, which defines the bottom of the accommodating space.

7. The child vehicle according to claim 1, characterized in that, The fixed bracket is fixed to the top of the column assembly.

8. The child vehicle according to claim 1 or 7, characterized in that, The first movable support and the second movable support are located below the fixed support.

9. The child vehicle according to claim 8, characterized in that, The first movable support is slidably connected to the column assembly, and the second movable support is slidably connected to the column assembly. The child carrier includes a first use state and a second use state. The height of the first movable support in the first use state is higher than its height in the second use state, and the height of the second movable support in the first use state is lower than its height in the second use state. A locking member is provided on the first movable support or the second movable support. When the child carrier is in the first use state or the second use state, the locking member and the column assembly are locked together.

10. The child vehicle according to claim 9, characterized in that, The first movable support includes a sliding sleeve that can be slidably fitted onto the column assembly; the second movable support includes a slider, the column assembly has a vertically extending groove, and the slider is inserted into the groove; the sliding sleeve has an clearance groove for the slider to pass through, the clearance groove extending from the top to the bottom of the sliding sleeve.

11. The child vehicle according to claim 1, characterized in that, The column assembly includes multiple upright columns, and the fixed support is disposed on the multiple columns; the first movable support includes a first frame joined end to end, and the first frame is horizontally disposed; the second movable support includes a second frame joined end to end, and the second frame is horizontally disposed; the fixed support includes a third frame joined end to end, and the third frame is horizontally disposed; the third frame is located above the first frame and above the second frame, and together they enclose a space for accommodating a child.

12. The child vehicle according to claim 1, characterized in that, The child carrier is a child bed. The fixed support is transverse to the column assembly, the first movable support is transverse to the column assembly, the second movable support is transverse to the column assembly, and a bed board is provided on the second movable support.

13. The child vehicle according to claim 1, characterized in that, The child carrier includes a cloth cover that covers the fixed support, the outer edge of the cloth cover is connected to the first movable support, and the inner edge of the cloth cover is connected to the second movable support; a first section of the cloth cover is tensioned between the second movable support and the fixed support, and a second end of the cloth cover is tensioned between the fixed support and the first movable support.

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